External mounting type magnetic turning plate liquid level meter dredging device

Abstract

The utility model relates to the technical field of magnetic turning plate liquid level meters, and discloses an external hanging type magnetic turning plate liquid level meter dredging device which comprises a liquid level meter body, a rectangular box and a dredging assembly, and the dredging assembly comprises a dredging part, a lifting part and a rotating part; the dredging part comprises a push rod, a scraping plate and a scraping nail; the lifting part comprises a lead screw and a lifting block; the rotating part comprises a second bevel gear, a first bevel gear and a first spur gear. A dredging assembly and a servo motor are arranged to be matched with a lifting part to adjust the height of a push rod, the push rod pushes a scraper to move in the descending process to clean crystals and precipitates on the inner wall face of a liquid level meter body, and a rotating part is arranged, the push rod rotates in the descending process to drive a scraping nail to rotate, so that the crystals and the precipitates on the inner wall face of the liquid level meter body are cleaned. Sediments between the floater and the inner wall face of the liquid level meter body are broken through the scraping nails, and then dredging and cleaning work of the liquid level meter body is completed.

Description

Technical Field

[0001] This utility model relates to the field of magnetic float level gauge technology, and in particular to an external magnetic float level gauge unblocking device. Background Technology

[0002] A magnetic float level gauge is a level gauge that works on the principle of magnetic coupling. When the liquid level in the measured container rises or falls, the magnetic float in the gauge body tube also rises or falls accordingly. The permanent magnet inside the float transmits the signal to the magnetic flip indicator through magnetic coupling, driving the red and white flip columns to rotate 180°. When the liquid level rises, the flip column changes from white to red; when the liquid level falls, the flip column changes from red to white. The red-white boundary of the indicator shows the actual height of the liquid level inside the container, thus achieving a clear indication of the liquid level. It can be used in high-temperature, high-pressure, and corrosion-resistant applications, and has the characteristics of high sealing and leak prevention, making it suitable for medium level detection in various towers, tanks, troughs, spherical containers, boilers, and other equipment.

[0003] Application number CN202520151039.7 discloses a magnetic float level gauge, including a level gauge body and a filter assembly. An upper connecting pipe is welded through the top of the outer circumference of the level gauge body, and a water inlet pipe is welded through the top of the outer circumference of the upper connecting pipe. A filter assembly is snapped through the bottom of the outer circumference of the level gauge body, and a lower connecting pipe is snapped through one end of the filter assembly. A drain pipe is welded through the bottom of the outer circumference of the filter assembly, and a vent pipe is welded through the outer circumference of the drain pipe. A blower is snapped to the other end of the vent pipe. A filter element is snapped through one end of the filter assembly. Existing technology uses high-pressure water jets to unclog the level gauge. However, the impact of the high-pressure water jet may deform the float of the magnetic float level gauge or cause the surface coating to peel off, resulting in weakened float magnetism or failure of the locking mechanism. If the water pressure is too low, it will not be able to unclog the blocked level gauge.

[0004] Existing magnetic level gauges are prone to clogging due to impurities, crystals, or sediments in the medium. Clogging can prevent the float from rising or falling with the liquid level, cause the magnetic coupling to fail, prevent the level gauge from flipping, and result in stagnant or incorrect level display.

[0005] Therefore, this application proposes an external magnetic level gauge unblocking device. Utility Model Content

[0006] The purpose of this utility model is to provide an external magnetic level gauge unblocking device. By setting up the level gauge body and unblocking components, it solves the problems that water flow unblocking can easily damage the device and that existing magnetic level gauges are easily blocked due to the accumulation of media impurities.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] An external magnetic level gauge unblocking device includes a level gauge body, a rectangular box, and an unblocking assembly. The rectangular box is fixedly installed on the top of the level gauge body. The rectangular box is a hollow rectangle, and a servo motor is fixedly installed on the top of the rectangular box. The unblocking assembly is disposed inside the rectangular box cavity and includes an unblocking part, a lifting part, and a rotating part. The unblocking part includes a push rod, a scraper, and a scraper nail. One end of the push rod movably penetrates the top of the level gauge body. The scraper is located inside the level gauge body cavity. A short column connecting rod is provided between the scraper and the push rod. The scraper nail is fixedly installed on the outer wall of the short column connecting rod. The lifting part includes a lead screw and a lifting block. A first fixing post is fixedly installed on the outer wall of the lifting block. The lead screw movably penetrates the first fixing post and is in transmission cooperation with the first fixing post. The top of the push rod is movably installed at the bottom of the lifting block. The rotating part includes a second helical gear, a first helical gear, and a first spur gear. A rack is fixedly installed inside the rectangular box cavity, and the first spur gear meshes movably with the rack.

[0009] According to the external magnetic level gauge unblocking device, there are multiple sets of short column connecting rods, the number of scraper nails corresponds one-to-one with the number of short column connecting rods, and a collar is fixedly installed at one end of the push rod inside the level gauge body cavity.

[0010] According to the external magnetic level gauge unblocking device, the short column connecting rod is fixedly installed between the inner wall of the corresponding scraper and the outer wall of the collar, and the scraper nail is located below the short column connecting rod, and the scraper nail is inclined and close to the inner wall of the level gauge body.

[0011] According to the external magnetic level gauge unblocking device, the lead screw is movably installed in the rectangular box cavity, the output shaft of the servo motor movably passes through the top of the rectangular box and is fixedly connected to one end of the lead screw, and the lead screw and the first fixed stake are connected by a thread.

[0012] According to the external magnetic level gauge unblocking device, a second fixing post is fixedly installed on the outer wall of the lifting block away from the lead screw, and a guide rod is fixedly installed inside the rectangular box cavity. The guide rod moves through the second fixing post, and the guide rod and the lead screw are parallel to each other.

[0013] According to the external magnetic level gauge unblocking device, a rotating shaft is movably passed through the center of the lifting block, and the two ends of the rotating shaft are respectively fixedly passed through a first helical gear and a first spur gear.

[0014] According to the external magnetic level gauge unblocking device, the top of the outer wall of the push rod is fixedly connected to the second helical gear, and the first helical gear and the second helical gear are movably meshed.

[0015] This utility model provides an external magnetic float level gauge unblocking device with the following advantages: By fixing a rectangular box to the top of the level gauge body, and setting an unblocking component inside the rectangular box cavity, a servo motor and lifting unit adjust the height of the push rod. During the descent, the push rod pushes the scraper to move, cleaning the medium impurities, crystals, or precipitates on the inner wall of the level gauge body. By setting a rotating part, the push rod rotates during the descent, thereby driving the scraper to rotate. The scraper scrapes the precipitates or impurities between the float and the inner wall of the level gauge body, breaking up the accumulated impurities, thus completing the unblocking and cleaning work of the level gauge body. No manual cleaning is required, the device operates automatically, and the workload of maintenance is reduced. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an external magnetic level gauge unblocking device according to the present invention;

[0017] Figure 2 This is a top view schematic diagram of an external magnetic level gauge unblocking device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the rectangular box cavity of an external magnetic level gauge unblocking device according to this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the unblocking part of an external magnetic level gauge unblocking device according to the present invention;

[0020] Figure 5 This is a schematic diagram showing the connection between the rotating part and the lifting part of an external magnetic level gauge unblocking device according to this utility model.

[0021] Legend:

[0022] 10. Level gauge body; 11. Rectangular box; 12. Servo motor; 13. Push rod; 14. Lead screw; 15. Rotating part; 16. Collar; 17. Scraper; 18. Short column connecting rod; 19. Scraper nail; 20. Lifting block; 21. Rotating shaft; 22. First helical gear; 23. First spur gear; 24. Rack; 25. Second helical gear; 26. Guide rod. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-5As shown, this utility model is an external magnetic level gauge unblocking device, including a level gauge body 10, a rectangular box 11, and an unblocking component. The rectangular box 11 is fixedly installed on the top of the level gauge body 10. The rectangular box 11 is a hollow rectangle, and a servo motor 12 is fixedly installed on the top of the rectangular box 11. The unblocking component is disposed in the cavity of the rectangular box 11 and includes an unblocking part, a lifting part, and a rotating part 15. The unblocking part includes a push rod 13, a scraper 17, and a scraper nail 19. One end of the push rod 13 movably passes through the top of the level gauge body 10, and the scraper 17 is located in the cavity of the level gauge body 10. A short column connecting rod 18 is provided between plate 17 and push rod 13, and scraper nail 19 is fixedly installed on the outer wall of short column connecting rod 18; the lifting part includes lead screw 14 and lifting block 20, a first fixed post is fixedly installed on the outer wall of lifting block 20, lead screw 14 moves through the first fixed post and is in transmission cooperation with the first fixed post, and the top end of push rod 13 is movably installed on the bottom end of lifting block 20; the rotating part 15 includes a second helical gear 25, a first helical gear 22 and a first spur gear 23, a rack 24 is fixedly installed in the cavity of rectangular box 11, and the first spur gear 23 is movably meshed with rack 24.

[0025] Solid particles, crystals, or viscous substances in the medium easily adhere to the surface of the float. Especially under long-term static conditions, the float's magnetism accelerates the accumulation of impurities. The accumulation of impurities restricts the float's movement within the measuring cylinder, or even causes it to become completely stuck, unable to rise or fall with the liquid level, resulting in abnormal display or stagnation. Therefore, it is necessary to clear the blockage in the level gauge body 10. This application achieves this by fixing a rectangular box 11 to the top of the level gauge body 10, with the push rod 13 inside the rectangular box 11, and the bottom end of the push rod 13 moving through the level gauge body 10. The rectangular box 11 can protect and prevent dust from the push rod 13. The bottom end of the push rod 13 is fixedly connected to the collar 16. The short column connecting rod 18 connects the scraper 17 and the collar 16. The scraper nail 19 is fixedly connected to the short column connecting rod 18. During the descent of the push rod 13, the scraper 17 scrapes and cleans the inner wall of the level gauge body 10, and the scraper nail 19 breaks up the impurities, allowing the float to move. The rotating part 15 is provided to drive the push rod 13 to rotate the scraper nail 19 to complete the cleaning work.

[0026] Among them, such as Figure 1-4 As shown, there are multiple sets of short column connecting rods 18, and the number of scraper nails 19 corresponds one-to-one with the number of short column connecting rods 18. A collar 16 is fixedly installed at one end of the push rod 13 inside the cavity of the level gauge body 10. The short column connecting rods 18 are fixedly installed between the inner wall surface of the corresponding scraper 17 and the outer wall surface of the collar 16. The scraper nails 19 are located below the short column connecting rods 18, and the scraper nails 19 are inclined and close to the inner wall surface of the level gauge body 10.

[0027] A collar 16 is fixedly connected to the bottom of the push rod 13 to prevent the push rod 13 from detaching. The short column connecting rod 18 connects the collar 16 to the scraper 17. During the downward pressing of the push rod 13, the medium in the cavity of the level gauge body 10 flows through the gap between the short column connecting rods 18, which will not cause the pressure inside the level gauge body 10 to increase and cause it to break. By setting the scraper 19 below the short column connecting rod 18 and the scraper 19 is inclined and close to the inner wall of the level gauge body 10, the scraper 19 will not damage the float and the cleaning effect of impurities is higher.

[0028] Among them, such as Figure 3-4 As shown, the lead screw 14 is movably installed inside the rectangular box 11. The output shaft of the servo motor 12 movably passes through the top of the rectangular box 11 and is fixedly connected to one end of the lead screw 14. The lead screw 14 and the first fixed post are connected by a thread. A second fixed post is fixedly installed on the outer wall of the lifting block 20 away from the lead screw 14. A guide rod 26 is fixedly installed inside the rectangular box 11. The guide rod 26 movably passes through the second fixed post, and the guide rod 26 and the lead screw 14 are parallel to each other.

[0029] Traditional manual cleaning is time-consuming, labor-intensive, and inefficient. This device uses a servo motor 12 to drive a lead screw 14 to rotate. The lead screw 14 moves through a first fixed post on one side of the lifting block 20. The lead screw 14 and the first fixed post are connected by a thread. The rotation of the lead screw 14 controls the height of the lifting block 20. The push rod 13 is fixedly connected to the lifting block 20, so that the push rod 13 and the lifting block 20 move up and down synchronously. By fixing a second fixed post on the other side of the lifting block 20, and the guide rod 26 moves through the second fixed post, the stability of the device is further improved, and it plays a limiting and guiding role in the lifting of the lifting block 20.

[0030] Among them, such as Figure 5 As shown, a rotating shaft 21 is movably inserted through the center of the lifting block 20, and the two ends of the rotating shaft 21 are respectively fixedly inserted through the first helical gear 22 and the first spur gear 23. The top of the outer wall of the push rod 13 is fixedly inserted through the second helical gear 25, and the first helical gear 22 and the second helical gear 25 are movably meshed.

[0031] A rotating shaft 21 is movably inserted through the center of the lifting block 20. The rotating shaft 21 and the lifting block 20 are movably connected by bearings. The two ends of the rotating shaft 21 are respectively fixedly inserted through a first helical gear 22 and a first spur gear 23. The top of the outer wall of the push rod 13 is fixedly inserted through a second helical gear 25. The first helical gear 22 and the second helical gear 25 are movably meshed. During the unblocking process, the rotation of the first spur gear 23 drives the rotating shaft 21 and the first helical gear 22 to rotate. The first helical gear 22 drives the second helical gear 25 and the push rod 13 to rotate. The push rod 13 synchronously drives the scraper nail 19 to rotate. By using only a single motor, the number of motors, circuits and control modules is reduced, the device cost is reduced, and it is suitable for efficient collaborative industrial scenarios.

[0032] The specific working principle of this utility model is as follows: When impurities accumulate inside the level gauge body 10, causing blockage, the float cannot rise or fall with the liquid level, and the liquid level display becomes stagnant or erroneous. When clearing the blockage in the level gauge body 10, the servo motor 12 drives the lead screw 14 to rotate. The lead screw 14 is threadedly connected to the first fixed post, thereby controlling the height of the lifting block 20 by rotating the lead screw 14. The push rod 13 is fixedly connected to the lifting block 20, so that the push rod 13 and the lifting block 20 move up and down synchronously. During the downward pressing of the push rod 13, the medium inside the cavity of the level gauge body 10 flows through the gap between the short column connecting rods 18. The scraper 17 scrapes and cleans the inner wall surface of the level gauge body 10. 9. The impurity accumulation area is broken up to allow the float to move. A rotating shaft 21 is moved through the center of the lifting block 20. The rotating shaft 21 and the lifting block 20 are connected by a bearing. The two ends of the rotating shaft 21 are fixedly connected to the first helical gear 22 and the first spur gear 23, respectively. The top of the outer wall of the push rod 13 is fixedly connected to the second helical gear 25. The first helical gear 22 and the second helical gear 25 are movably meshed. During the unblocking process, the rotation of the first spur gear 23 drives the rotating shaft 21 and the first helical gear 22 to rotate. The first helical gear 22 drives the second helical gear 25 and the push rod 13 to rotate. The push rod 13 synchronously drives the scraper nail 19 to rotate, thus completing the cleaning and unblocking work.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An external magnetic level gauge unblocking device, comprising a level gauge body (10), a rectangular box (11), and unblocking components, characterized in that: The rectangular box (11) is fixedly installed on the top of the liquid level gauge body (10). The rectangular box (11) is a hollow rectangular body, and a servo motor (12) is fixedly installed on the top of the rectangular box (11). The unblocking component is set inside the cavity of the rectangular box (11). The unblocking component includes an unblocking part, a lifting part and a rotating part (15). The unblocking part includes a push rod (13), a scraper (17) and a scraper nail (19). One end of the push rod (13) is movably inserted through the top of the liquid level gauge body (10). The scraper (17) is located inside the cavity of the liquid level gauge body (10). A short column connecting rod (18) is provided between the scraper (17) and the push rod (13). The scraper nail (19) is fixedly installed on the outer wall of the short column connecting rod (18). The lifting part includes a lead screw (14) and a lifting block (20). A first fixed pile is fixedly installed on the outer wall of the lifting block (20). The lead screw (14) moves through the first fixed pile and is in transmission cooperation with the first fixed pile. The top end of the push rod (13) is movably installed at the bottom end of the lifting block (20). The rotating part (15) includes a second helical gear (25), a first helical gear (22) and a first spur gear (23). A rack (24) is fixedly installed inside the rectangular box (11). The first spur gear (23) meshes with the rack (24).

2. The external magnetic level gauge unblocking device according to claim 1, characterized in that: The short column connecting rod (18) is in multiple sets, and the number of scraper nails (19) corresponds one-to-one with the short column connecting rod (18). The push rod (13) has a collar (16) fixedly installed at one end inside the cavity of the liquid level gauge body (10).

3. The external magnetic level gauge unblocking device according to claim 2, characterized in that: The short column connecting rod (18) is fixedly installed between the inner wall of the corresponding scraper (17) and the outer wall of the collar (16). The scraper nail (19) is located below the short column connecting rod (18) and is inclined close to the inner wall of the level gauge body (10).

4. The external magnetic level gauge unblocking device according to claim 1, characterized in that: The lead screw (14) is movably installed inside the rectangular box (11) cavity. The output shaft of the servo motor (12) movably passes through the top of the rectangular box (11) and is fixedly connected to one end of the lead screw (14). The lead screw (14) and the first fixed post are connected by a thread.

5. The external magnetic level gauge unblocking device according to claim 1, characterized in that: A second fixing post is fixedly installed on the outer wall of the lifting block (20) away from the lead screw (14). A guide rod (26) is fixedly installed inside the rectangular box (11). The guide rod (26) moves through the second fixing post and is parallel to the lead screw (14).

6. The external magnetic level gauge unblocking device according to claim 5, characterized in that: A rotating shaft (21) is movably passed through the center of the lifting block (20), and the two ends of the rotating shaft (21) are respectively fixedly passed through the first helical gear (22) and the first spur gear (23).

7. The external magnetic level gauge unblocking device according to claim 1, characterized in that: The push rod (13) has a second helical gear (25) fixedly inserted through the top of its outer wall surface, and the first helical gear (22) and the second helical gear (25) are in movable meshing.

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