Low-density high-pressure-resistant liquid level meter

Abstract

The utility model belongs to the technical field of liquid level meters, and particularly relates to a low-density high-pressure-resistant liquid level meter which comprises a pipe body and further comprises an upper connecting pipe and a lower connecting pipe, the upper connecting pipe and the lower connecting pipe are arranged on the right side wall of the pipe body, filter grooves are formed in the upper connecting pipe and the lower connecting pipe, and filter screens are installed in the filter grooves in a sliding mode. The drainage pipe is arranged at the bottom of the pipe body; the sliding rod is arranged in the pipe body, and the sliding rod is sleeved with a magnetic floater; it is guaranteed that the filter screen can filter and intercept a small amount of scrap iron in the filter screen, the scrap iron is prevented from entering the pipe body to be attached to the surface of the magnetic floater, the weight and the size of the magnetic floater are prevented from being increased, it is guaranteed that the magnetic floater can normally move up and down in the pipe body, and the accuracy of measurement precision is guaranteed; the magnetic turning plate can be replaced in time, and the situation that the accuracy and timeliness of liquid level display are affected due to the fact that the magnetic turning plate rotates inflexibly and even is blocked is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquid level meter technical field especially relates to a low density high pressure resistant liquid level meter. BACKGROUND

[0002] Liquid level meter is a kind of instrument for measuring liquid level height, is widely used in petroleum, chemical industry, electric power, water treatment and many other fields, and there are various kinds of liquid level meters, including resistance type liquid level meter, radio frequency admittance liquid level meter, nuclear radiation type liquid level meter, tuning fork type liquid level meter, magnetic reed liquid level meter, wherein the magnetic reed liquid level meter has the characteristics of intuitive reading, large measurement range, stable performance and is widely used in many fields.

[0003] Most of the traditional steel containers and other metal containers contain iron components, and when storing liquid for a long time, the container will be corroded to varying degrees, and a small amount of iron filings will be produced, and a small amount of dirt will also be deposited when the liquid is placed in the container for a long time. When using the magnetic reed liquid level meter, the iron filings produced in the solution will enter the pipe body and adhere to the magnetic float, causing the weight and volume of the magnetic float to increase, affecting the normal up-down movement of the magnetic float in the pipe body, thereby producing reading error. At the same time, the magnetic reed turns continuously in long-term use, and the connecting part of the shaft and the magnetic reed and the liquid level meter mounting component will be rubbed due to relative movement, and after long-term use, the shaft may be worn, causing the magnetic reed to be not flexible, even causing the phenomenon of jamming, affecting the accuracy and timeliness of liquid level display. In view of this, we propose a low-density high-pressure-resistant liquid level meter. SUMMARY

[0004] The utility model aims at providing a kind of low-density high-pressure-resistant liquid level meter to solve the problems raised in the above background.

[0005] Therefore, the utility model provides a kind of low-density high-pressure-resistant liquid level meter, including pipe body, still including:

[0006] Upper connecting pipe and lower connecting pipe, the upper connecting pipe and lower connecting pipe are arranged on the right side wall of pipe body, filter groove is formed in the upper connecting pipe and lower connecting pipe, and filter screen is slidably installed in the filter groove;

[0007] Drain pipe, the drain pipe is arranged at the bottom of pipe body;

[0008] Slide rod, the slide rod is arranged in pipe body, magnetic float is sleeved on the slide rod, and magnetic steel is fixedly installed in the magnetic float;

[0009] A support plate is fixedly installed on the left side wall of the tube body. A display plate is inserted into the support plate and a sliding groove is provided in the display plate. A sliding plate is slidably installed in the sliding groove. Several circular grooves are provided on one side of the sliding groove. Circular grooves are provided on the sliding plate and corresponding to the positions of the circular grooves. A magnetic flip plate is rotatably installed between the circular grooves.

[0010] A drive assembly located within the display panel and used to drive a slide plate to move horizontally within a slide groove.

[0011] In this technical solution, when a low-density, high-pressure resistant liquid level gauge is required, the operator connects the lower connecting pipe and the upper connecting pipe to the lower and upper interfaces of the metal container, respectively. Then, the operator opens the valve of the upper interface of the metal container and slowly opens the valve of the lower interface. At this time, the liquid and a small amount of iron filings in the metal container will flow from the lower interface of the metal container through the feed port of the lower connecting pipe into the filter screen in the filter tank. The liquid in the metal container will then pass through the filter screen in the filter tank and flow into the inside of the tube. The filter screen can filter and intercept the small amount of iron filings, preventing them from entering the inside of the tube and adhering to the surface of the magnetic float, thus preventing an increase in the weight and volume of the magnetic float and ensuring that the magnetic float can move up and down normally in the tube, thereby ensuring the accuracy of the measurement.

[0012] As liquid slowly flows into the pipe, the liquid level rises. Under buoyancy, the magnetic float slides upwards along the guide rod. The magnetic float contains magnets; as it moves with the liquid level, the magnets also move, generating a stable magnetic field. This magnetic field then magnetically couples with a magnetic flap, causing the magnetic field to attract the flap and flip. The red and white sections of the flap are swapped, making the flap red. Thus, as the magnetic float moves up and down, the flap flips accordingly, clearly indicating the liquid level. Personnel can determine the liquid level by observing the height of the red section of the flap.

[0013] When the magnetic flip panel has been used for a long time and the rotating shaft of the magnetic flip panel wears down, causing the magnetic flip panel to rotate inflexibly or even jam, and the magnetic flip panel needs to be replaced, the personnel use the drive component to move the slide away from the magnetic flip panels. The personnel then remove the magnetic flip panel that needs to be replaced from the display panel, and then reinsert one end of the new magnetic flip panel into the first circular groove in the display panel. Then, the slide is moved back towards the magnetic flip panel by the drive component until the other end of the magnetic flip panels is inserted into the corresponding second circular groove in the slide. This ensures that the magnetic flip panels can be replaced in a timely manner, and avoids affecting the accuracy and timeliness of the liquid level display due to the magnetic flip panel rotating inflexibly or even jamming.

[0014] In the above technical solution, the driving component further includes:

[0015] A rectangular slot is formed inside the display panel. A second bevel gear is rotatably installed inside the rectangular slot, and a threaded rod is fixedly installed at one end of the second bevel gear. One end of the threaded rod extends through one side of the rectangular slot into the slide groove and through the slide plate. A first bevel gear is meshed with the second bevel gear on its circumference.

[0016] A rotating shaft is rotatably mounted on the top of the display panel, and the bottom end of the rotating shaft extends through the top of the display panel into a rectangular groove and is coaxially connected with a bevel gear.

[0017] In this technical solution, the rotating shaft is twisted, and the rotating shaft drives the first bevel gear to rotate in the rectangular groove. Under the action of meshing, the first bevel gear rotates and drives the second bevel gear to rotate in the rectangular groove. The second bevel gear rotates and drives the threaded rod to rotate in the sliding groove. Under the action of the thread, the threaded rod rotates and drives the slide plate to slide in the sliding groove.

[0018] In the above technical solution, both bevel gear one and bevel gear two are rotatably connected to the rectangular groove, the threaded rod is threadedly connected to the slide plate, the threaded rod is rotatably connected to the slide groove and the rectangular groove, and the rotating shaft is rotatably connected to the display panel and the rectangular groove.

[0019] In this technical solution, it is ensured that bevel gear one and bevel gear two can rotate within the rectangular groove, that the threaded rod can drive the slide plate to slide within the slide groove, that the threaded rod can rotate within the slide groove and the rectangular groove, and that the rotating shaft can rotate within the display panel and the rectangular groove.

[0020] Furthermore, the above technical solution also includes:

[0021] Two drain flanges are fixedly installed at the lower drain ports of the upper and lower connecting pipes, respectively, and a sealing plate is provided at the bottom of each drain flange.

[0022] Two flanges are fixedly installed at the feed inlets of the upper and lower connecting pipes, respectively.

[0023] In this technical solution, the flange on the lower connecting pipe is fixed to the lower interface of the metal container by several bolts, and the flange on the upper connecting pipe is fixed to the lower interface of the metal container by several bolts. This ensures that under high pressure, the liquid can flow safely and smoothly from the metal container into the lower and upper connecting pipes. The sealing disc ensures that the liquid and iron filings in the lower and upper connecting pipes will not leak out from the drain ports of the lower and upper connecting pipes.

[0024] In the above technical solution, further, a scale line is provided on one side of the support plate, the drain pipe is fixed to the pipe body by several bolts, and a rotary valve is rotatably installed at the lower end of the drain pipe. The top of the slide rod is tightly welded to the top of the inner cavity of the pipe body. The sealing disc is fixed to the sewage flange by several bolts. The tail end of the filter screen is tightly welded to the top of the sealing disc. The sealing disc is fixed to the sewage flange by several bolts.

[0025] In this technical solution, the liquid level can be determined by the scale lines on the support plate and the height of the red part of the magnetic flip plate, ensuring the stability of the drain pipe and pipe body structure. Personnel can discharge the liquid in the pipe body through the drain pipe by turning the valve, ensuring the stability of the sealing plate and drain flange structure, ensuring the stability of the filter screen and sealing plate structure, and ensuring the sealing of the lower and upper connecting pipes. At the same time, personnel can also unscrew the bolts on the sealing plate and drain flange to remove the filter screen, which is convenient for cleaning the iron filings inside the filter screen later.

[0026] In the above technical solution, the tube body, the upper connecting tube, and the lower connecting tube are integrally formed, one end of the upper connecting tube and the lower connecting tube are connected to the tube body, the filter screen has an inclined structure and a cylindrical structure, the filter screen has a filtration accuracy of 0.1-0.3mm, and a scale line is provided on one side of the support plate.

[0027] In this technical solution, the stability of the pipe body and the upper and lower connecting pipe structures is ensured, and the liquid in the upper and lower connecting pipes can flow into the pipe body, thus ensuring that iron filings are filtered and intercepted in the filter screen.

[0028] In the above technical solution, the upper connecting pipe is located directly above the lower connecting pipe, the filter tank inside the upper connecting pipe is connected to the drain outlet at the lower end of the upper connecting pipe, and the filter tank inside the lower connecting pipe is connected to the drain outlet at the lower end of the lower connecting pipe.

[0029] In this technical solution, it is ensured that the iron filings in the upper connecting pipe can enter the filter screen from the filter tank, and then the bolts on the sealing plate and the drain flange are unscrewed to remove the filter screen and iron filings. It is also ensured that the iron filings in the lower connecting pipe can enter the filter screen from the filter tank, and then the bolts on the sealing plate and the drain flange are unscrewed to remove the filter screen and iron filings.

[0030] The beneficial effects of this utility model are:

[0031] 1. This low-density, high-pressure resistant level gauge, through the cooperation of the lower connecting pipe, upper connecting pipe, drain flange, sealing plate, filter tank, and filter screen, ensures that the filter screen can filter and intercept a small amount of iron filings, preventing them from entering the inside of the pipe and adhering to the surface of the magnetic float. This prevents the weight and volume of the magnetic float from increasing, ensuring that the magnetic float can move normally up and down inside the pipe and guaranteeing the accuracy of the measurement.

[0032] 2. This low-density, high-pressure resistant level gauge, through the cooperation of its drive components, display panel, slide, and slide plate, ensures that the magnetic flip plate can be replaced in a timely manner, avoiding the impact on the accuracy and timeliness of the level display due to the magnetic flip plate's inflexible rotation or even jamming. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0034] Figure 2 This is a schematic cross-sectional view of the tube body of this utility model;

[0035] Figure 3 This is a cross-sectional structural diagram of the lower connecting pipe in this utility model;

[0036] Figure 4 This is a schematic diagram of the regional structure of the display panel in this utility model. Figure 1 ;

[0037] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0038] Figure 6 This is a schematic diagram of the regional structure of the display panel and the sliding plate in this utility model;

[0039] Figure 7 This is a schematic diagram of the regional structure of the skateboard in this utility model;

[0040] Figure 8 This is a schematic cross-sectional view of the magnetic levitation element in this utility model.

[0041] Figure 9 This is a schematic diagram of the magnetic flip plate in this utility model;

[0042] Figure 10 This is an exploded structural diagram of the upper connecting pipe in this utility model;

[0043] Figure 11 This is an exploded structural diagram of the lower connecting pipe in this utility model;

[0044] Figure 12 This is a schematic diagram of the regional structure of the display panel and magnetic flip panel in this utility model.Figure 2 .

[0045] The markings in the diagram are as follows:

[0046] 1. Pipe body; 2. Lower connecting pipe; 3. Upper connecting pipe; 4. Flange 1; 5. Support plate; 6. Rotary valve; 7. Drain pipe; 8. Magnet; 9. Slide rod; 10. Magnetic float; 11. Display panel; 12. Filter screen; 13. Drain flange; 14. Sealing plate; 15. Threaded rod; 16. Slide plate; 17. Magnetic flip plate; 18. Bevel gear 1; 19. Rectangular groove; 20. Bevel gear 2; 21. Rotating shaft; 23. Filter tank; 24. Slide groove. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0048] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0049] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0050] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0051] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0052] Example 1:

[0053] Please see Figures 1-12 As shown in the figure, this embodiment provides a low-density, high-pressure resistant liquid level gauge, including a tube body 1, and further comprising:

[0054] Upper connecting pipe 3 and lower connecting pipe 2 are provided on the right side wall of pipe body 1. Filter grooves 23 are opened in both upper connecting pipe 3 and lower connecting pipe 2. Filter screens 12 are slidably installed in filter grooves 23.

[0055] Drain pipe 7 is located at the bottom of pipe body 1;

[0056] The slide rod 9 is set inside the tube body 1. A magnetic float 10 is sleeved on the slide rod 9, and a magnet 8 is fixedly installed inside the magnetic float 10.

[0057] Support plate 5 is fixedly installed on the left side wall of tube body 1. Display plate 11 is inserted into support plate 5 and a sliding groove 24 is opened in display plate 11. Slide plate 16 is slidably installed in sliding groove 24. Several circular grooves are opened on one side of sliding groove 24. Circular grooves are opened on slide plate 16 and corresponding circular grooves are opened on circular grooves 16. Magnetic flip plate 17 is rotatably installed between circular grooves 1 and circular grooves 2.

[0058] A drive assembly is located within the display panel 11 and is used to drive the slide plate 16 to move horizontally within the slide groove 24.

[0059] When using a low-density, high-pressure liquid level gauge, the operator connects the lower connecting pipe 2 and the upper connecting pipe 3 to the lower and upper interfaces of the metal container, respectively. Then, the operator opens the valve of the upper interface of the metal container and slowly opens the valve of the lower interface. At this time, the liquid and a small amount of iron filings in the metal container will flow from the lower interface of the metal container through the feed port of the lower connecting pipe 2 into the filter screen 12 in the filter tank 23. The liquid in the metal container will then flow through the filter screen 12 in the filter tank 23 into the interior of the tube body 1. The filter screen 12 can filter and intercept the small amount of iron filings, preventing them from entering the interior of the tube body 1 and adhering to the surface of the magnetic float 10. This prevents the weight and volume of the magnetic float 10 from increasing, ensuring that the magnetic float 10 can move up and down normally in the tube body and guaranteeing the accuracy of the measurement.

[0060] When liquid slowly flows into pipe 1, the liquid level in pipe 1 rises. At this time, under the action of buoyancy, the magnetic float 10 slides upward along the slide bar 9. At the same time, the magnetic float 10 is equipped with a magnet 8. When the magnetic float 10 moves with the liquid level, the magnet 8 inside the magnetic float 10 also moves, thereby generating a stable magnetic field and creating a magnetic coupling with the magnetic flip plate 17. This causes the magnetic field of the magnetic float 10 to attract the magnetic flip plate 17 to flip. At this time, the red part and the white part of the magnetic flip plate 17 are swapped, making the magnetic flip plate 17 red. In this way, as the magnetic float 10 moves up and down, the magnetic flip plate 17 will flip accordingly according to the position of the magnetic float 10, thus clearly indicating the height of the liquid level. Personnel can determine the value of the liquid level by the height of the red part of the magnetic flip plate 17.

[0061] When the magnetic flip plate 17 has been used for a long time and the rotating shaft of the magnetic flip plate 17 wears down, causing the magnetic flip plate 17 to rotate inflexibly or even jam, and the magnetic flip plate 17 needs to be replaced, the personnel use the drive component to move the slide plate 16 away from the magnetic flip plate 17. The personnel remove the magnetic flip plate 17 that needs to be replaced from the display plate 11, and then reinsert one end of the new magnetic flip plate 17 into the circular groove one in the display plate 11. Then, the slide plate 16 is moved back towards the magnetic flip plate 17 by the drive component until the other end of the magnetic flip plate 17 is inserted into the corresponding circular groove two in the slide plate 16. This ensures that the magnetic flip plate 17 can be replaced in a timely manner, and avoids affecting the accuracy and timeliness of the liquid level display due to the magnetic flip plate 17 rotating inflexibly or even jamming.

[0062] It is worth noting that the buoyancy force generated by the liquid on the magnetic float 10 is greater than the weight of the magnet 8, ensuring that the magnetic float 10 can move upward under the buoyancy of the liquid;

[0063] It is worth noting that a white coating is fixedly installed on one side of the magnetic flip plate 17, and a red coating is fixedly installed on the other side. The red coating is located on the magnetic flip plate 17 and faces the tube body 1, while the white coating is located on the magnetic flip plate 17 and is located on the side away from the tube body 1.

[0064] Example 2:

[0065] This embodiment provides a low-density, high-pressure resistant liquid level gauge. In addition to the technical solutions described in the above embodiments, it also has the following technical features, including a driving component comprising:

[0066] A rectangular slot 19 is formed inside the display panel 11. A second bevel gear 20 is rotatably installed inside the rectangular slot 19. A threaded rod 15 is fixedly installed at one end of the second bevel gear 20. One end of the threaded rod 15 extends through one side of the rectangular slot 19 into the slide groove 24 and through the slide plate 16. A first bevel gear 18 is meshed around the second bevel gear 20.

[0067] The rotating shaft 21 is rotatably mounted on the top of the display panel 11, and the bottom end of the rotating shaft 21 extends through the top of the display panel 11 into the rectangular groove 19 and is coaxially connected with the bevel gear 18.

[0068] The rotating shaft 21 is twisted, which drives the first bevel gear 18 to rotate in the rectangular groove 19. Under the action of meshing, the first bevel gear 18 rotates, which drives the second bevel gear 20 to rotate in the rectangular groove 19. The second bevel gear 20 rotates, which drives the threaded rod 15 to rotate in the sliding groove 24. Under the action of the thread, the threaded rod 15 rotates, which drives the slide plate 16 to slide in the sliding groove 24.

[0069] Example 3:

[0070] This embodiment provides a low-density, high-pressure resistant liquid level gauge. In addition to the technical solutions of the above embodiments, it also has the following technical features: bevel gear 18 and bevel gear 20 are rotatably connected to rectangular groove 19; threaded rod 15 is threadedly connected to slide plate 16; threaded rod 15 is rotatably connected to slide groove 24 and rectangular groove 19; and rotating shaft 21 is rotatably connected to display panel 11 and rectangular groove 19.

[0071] Specifically, it is ensured that bevel gear 18 and bevel gear 20 can rotate within rectangular groove 19, that threaded rod 15 can drive slide plate 16 to slide within slide groove 24, that threaded rod 15 can rotate within slide groove 24 and rectangular groove 19, and that rotating shaft 21 can rotate within display panel 11 and rectangular groove 19.

[0072] Example 4:

[0073] This embodiment provides a low-density, high-pressure resistant liquid level gauge, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and further includes:

[0074] Two drain flanges 13 are fixedly installed at the lower drain ports of the upper connecting pipe 3 and the lower connecting pipe 2, respectively. Each drain flange 13 is provided with a sealing plate 14 at its bottom.

[0075] Two flanges, 4, are fixedly installed at the inlet positions of the upper connecting pipe 3 and the lower connecting pipe 2, respectively.

[0076] Specifically, the flange 4 on the lower connecting pipe 2 is fixed to the lower interface of the metal container by several bolts, and the flange 4 on the upper connecting pipe 3 is fixed to the lower interface of the metal container by several bolts. This ensures that under high pressure, the liquid can flow safely and smoothly from the metal container into the lower connecting pipe 2 and the upper connecting pipe 3. The sealing plate 14 can ensure that the liquid and iron filings in the lower connecting pipe 2 and the upper connecting pipe 3 will not leak out from the drain ports of the lower connecting pipe 2 and the upper connecting pipe 3.

[0077] Example 5:

[0078] This embodiment provides a low-density, high-pressure resistant liquid level gauge. In addition to the technical solutions of the above embodiments, it also has the following technical features: a scale line is provided on one side of the support plate 5; the drain pipe 7 is fixed to the pipe body 1 by several bolts; a rotary valve 6 is rotatably installed at the lower end of the drain pipe 7; the top of the slide rod 9 is tightly welded to the top of the inner cavity of the pipe body 1; the sealing plate 14 is fixed to the drain flange 13 by several bolts; the tail end of the filter screen 12 is tightly welded to the top of the sealing plate 14; and the sealing plate 14 is fixed to the drain flange 13 by several bolts.

[0079] The liquid level can be determined by the scale lines on the support plate 5 and the height of the red part of the magnetic flip plate 17, ensuring the stability of the structure between the drain pipe 7 and the pipe body 1. Personnel can drain the liquid in the pipe body 1 through the drain pipe 7 by turning the valve 6, ensuring the stability of the structure between the sealing plate 14 and the drain flange 13, ensuring the stability of the structure between the filter screen 12 and the sealing plate 14, and ensuring the sealing of the lower connecting pipe 2 and the upper connecting pipe 3. At the same time, personnel can also unscrew the bolts on the sealing plate 14 and the drain flange 13 to remove the filter screen 12, which is convenient for cleaning the iron filings in the filter screen 12 later.

[0080] Example 6:

[0081] This embodiment provides a low-density, high-pressure resistant liquid level gauge. In addition to the technical solutions of the above embodiments, it also has the following technical features: the tube body 1, the upper connecting tube 3, and the lower connecting tube 2 are integrally formed; one end of the upper connecting tube 3 and the lower connecting tube 2 are connected to the tube body 1; the filter screen 12 has an inclined structure and a circular tube structure; and the filtration accuracy of the filter screen 12 is 0.1-0.3 mm.

[0082] This ensures the stability of the structure of the pipe body 1 with the upper connecting pipe 3 and the lower connecting pipe 2, ensures that the liquid in the upper connecting pipe 3 and the lower connecting pipe 2 can flow into the pipe body 1, and ensures that the iron filings are filtered and intercepted in the filter screen 12.

[0083] Example 7:

[0084] This embodiment provides a low-density, high-pressure resistant liquid level gauge. In addition to the technical solutions of the above embodiments, it also has the following technical features: the upper connecting pipe 3 is located directly above the lower connecting pipe 2; the filter tank 23 in the upper connecting pipe 3 is connected to the drain port at the lower end of the upper connecting pipe 3; and the filter tank 23 in the lower connecting pipe 2 is connected to the drain port at the lower end of the lower connecting pipe 2.

[0085] Specifically, ensure that the iron filings in the upper connecting pipe 3 can enter the filter screen 12 from the filter tank 23, then unscrew the bolts on the sealing plate 14 and the drain flange 13 to remove the filter screen 12 and the iron filings. Ensure that the iron filings in the lower connecting pipe 2 can enter the filter screen 12 from the filter tank 23, then unscrew the bolts on the sealing plate 14 and the drain flange 13 to remove the filter screen 12 and the iron filings.

[0086] Working principle: When using a low-density, high-pressure level gauge, the operator aligns the lower connecting pipe 2 with the lower interface of the metal container, and then aligns the upper connecting pipe 3 with the upper interface of the metal container. The flanges 4 on the lower connecting pipe 2 and the upper connecting pipe 3 are fixed to the lower interface and the upper interface of the metal container respectively by several bolts. Then, the operator opens the valve of the upper interface of the metal container, and then slowly opens the valve of the lower interface of the metal container. At this time, the liquid and a small amount of iron filings in the metal container will flow from the lower interface of the metal container through the feed port of the lower connecting pipe 2 into the filter screen 12 in the filter tank 23. At this time, the liquid in the metal container will pass through the filter screen 12 in the filter tank 23 and flow into the interior of the tube body 1. The filter screen 12 can filter and intercept the small amount of iron filings, preventing the iron filings from entering the interior of the tube body 1 and adhering to the surface of the magnetic float 10, preventing the weight and volume of the magnetic float 10 from increasing, and ensuring that the magnetic float 10 can move up and down normally in the tube body to ensure the accuracy of the measurement.

[0087] When the liquid slowly flows into the pipe body 1, the liquid level in the pipe body 1 rises. At this time, under the action of buoyancy, the magnetic float 10 will slide upward along the slide bar 9, ensuring that the movement direction of the magnetic float 10 is consistent with the direction of liquid level change. At the same time, the magnetic float 10 is equipped with a magnet 8. When the magnetic float 10 moves with the liquid level, the magnet 8 inside the magnetic float 10 will also move, thereby generating a stable magnetic field and creating a magnetic coupling effect with the magnetic flip plate 17. This causes the magnetic field of the magnetic float 10 to attract the magnetic flip plate 17 to flip. At this time, the red part and the white part of the magnetic flip plate 17 are swapped, making the magnetic flip plate 17 display red. In this way, as the magnetic float 10 moves up and down, the magnetic flip plate 17 will flip accordingly according to the position of the magnetic float 10, thus clearly indicating the height of the liquid level. Personnel can determine the value of the liquid level by the height of the red part of the magnetic flip plate 17 and the scale line on the support plate 5.

[0088] When the magnetic flip panel 17 has been used for a long time and the rotating shaft of the magnetic flip panel 17 wears down, causing the magnetic flip panel 17 to rotate inflexibly or even jam, requiring replacement, the personnel use the handle on the display panel 11 to pull the display panel 11 out of the support plate 5 and place it horizontally on the ground. Then, the personnel twist the rotating shaft 21, which drives the first bevel gear 18 to rotate in the rectangular groove 19. Under the action of meshing, the first bevel gear 18 drives the second bevel gear 20 to rotate in the rectangular groove 19. The second bevel gear 20 drives the threaded rod 15 to rotate in the sliding groove 24. Under the action of the thread, the threaded rod 15 drives the slide plate 16 to slide in the sliding groove 24, thereby moving the slide plate 16 away from the magnetic flip panels 17. The personnel then remove the magnetic flip panel 17 to be replaced from the display panel 11. Remove the magnetic flip plate 17 and reinsert one end of the new magnetic flip plate 17 into the circular groove 1 in the display panel 11. Then, twist the rotating shaft 21 in the opposite direction. The rotating shaft 21 rotates in the opposite direction, causing the first bevel gear 18 to rotate in the opposite direction in the rectangular groove 19. Under the action of meshing, the first bevel gear 18 rotates in the opposite direction, causing the second bevel gear 20 to rotate in the opposite direction in the rectangular groove 19. The second bevel gear 20 rotates in the opposite direction, causing the threaded rod 15 to rotate in the opposite direction in the sliding groove 24. Under the action of the thread, the threaded rod 15 rotates in the opposite direction, causing the slide plate 16 to slide in the sliding groove 24, thereby moving the slide plate 16 towards the magnetic flip plate 17 until the other end of several magnetic flip plates 17 is inserted into the circular groove 2 of the slide plate 16. This ensures that the magnetic flip plate 17 can be replaced in time, and avoids affecting the accuracy and timeliness of the liquid level display due to the magnetic flip plate 17 being inflexible or even stuck.

[0089] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A low-density, high-pressure resistant liquid level gauge, comprising a tube body (1), characterized in that, Also includes: The upper connecting pipe (3) and the lower connecting pipe (2) are arranged on the right side wall of the pipe body (1). The upper connecting pipe (3) and the lower connecting pipe (2) are both provided with filter grooves (23). A filter screen (12) is slidably installed in the filter grooves (23). Drainage pipe (7), the drainage pipe (7) is disposed at the bottom of the pipe body (1); A sliding rod (9) is installed inside the tube body (1). A magnetic float (10) is sleeved on the sliding rod (9). A magnet (8) is fixedly installed inside the magnetic float (10). A support plate (5) is fixedly installed on the left side wall of the tube body (1). A display plate (11) is inserted into the support plate (5), and a sliding groove (24) is opened in the display plate (11). A sliding plate (16) is slidably installed in the sliding groove (24). Several circular grooves are opened on one side of the sliding groove (24). Circular grooves corresponding to the positions of the circular grooves are opened on the sliding plate (16). A magnetic flip plate (17) is rotatably installed between the circular grooves. A drive assembly located within the display panel (11) and used to drive the slide plate (16) to move horizontally within the slide groove (24).

2. The low-density, high-pressure resistant liquid level gauge according to claim 1, characterized in that, The driving component includes: A rectangular groove (19) is formed in the display panel (11). A bevel gear two (20) is rotatably installed in the rectangular groove (19). A threaded rod (15) is fixedly installed at one end of the bevel gear two (20). One end of the threaded rod (15) extends through one side of the rectangular groove (19) into the slide groove (24) and through the slide plate (16). A bevel gear one (18) is meshed on the periphery of the bevel gear two (20). A rotating shaft (21) is rotatably mounted on the top of the display panel (11), and the bottom end of the rotating shaft (21) extends through the top of the display panel (11) into the rectangular groove (19) and is coaxially connected to the bevel gear (18).

3. The low-density, high-pressure resistant liquid level gauge according to claim 2, characterized in that, Both bevel gear one (18) and bevel gear two (20) are rotatably connected to the rectangular groove (19). The threaded rod (15) is threadedly connected to the slide plate (16). The threaded rod (15) is rotatably connected to the slide groove (24) and the rectangular groove (19). The rotating shaft (21) is rotatably connected to the display panel (11) and the rectangular groove (19).

4. The low-density, high-pressure resistant liquid level gauge according to claim 1, characterized in that, Also includes: Two drain flanges (13) are fixedly installed at the lower drain ports of the upper connecting pipe (3) and the lower connecting pipe (2), respectively. The bottom of each drain flange (13) is provided with a sealing plate (14). Two flanges (4) are fixedly installed at the feed inlets of the upper connecting pipe (3) and the lower connecting pipe (2), respectively.

5. A low-density, high-pressure resistant liquid level gauge according to claim 4, characterized in that, The support plate (5) has a scale line on one side. The drain pipe (7) is fixed to the pipe body (1) by several bolts. A rotary valve (6) is rotatably installed at the lower end of the drain pipe (7). The top of the slide rod (9) is tightly welded to the top of the inner cavity of the pipe body (1). The sealing plate (14) is fixed to the sewage flange (13) by several bolts. The tail end of the filter screen (12) is tightly welded to the top of the sealing plate (14). The sealing plate (14) is fixed to the sewage flange (13) by several bolts.

6. The low-density, high-pressure resistant liquid level gauge according to claim 1, characterized in that, The tube body (1) is integrally formed with the upper connecting tube (3) and the lower connecting tube (2). One end of the upper connecting tube (3) and the lower connecting tube (2) are connected to the tube body (1). The filter screen (12) has an inclined structure and a cylindrical structure. The filtration accuracy of the filter screen (12) is 0.1-0.3mm. The support plate (5) has a scale line on one side.

7. A low-density, high-pressure resistant liquid level gauge according to claim 1, characterized in that, The upper connecting pipe (3) is located directly above the lower connecting pipe (2). The filter tank (23) inside the upper connecting pipe (3) is connected to the drain outlet at the lower end of the upper connecting pipe (3). The filter tank (23) inside the lower connecting pipe (2) is connected to the drain outlet at the lower end of the lower connecting pipe (2).

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