Magnetic turning plate liquid level meter capable of effectively preventing floater from being blocked

Abstract

The invention discloses a magnetic flap liquid level meter capable of effectively preventing a floater from being blocked, and relates to the technical field of magnetic flap liquid level meters. Comprising a box body, a connecting valve is arranged on the side face of the box body, a liquid level pipeline is connected to the connecting valve, a display base is arranged on the side face of the liquid level pipeline, and magnetic overturning plates are arranged on the display base; a floater is arranged in the liquid level pipeline, an electromagnetic element is arranged in the floater, the floater moves along with the change of the liquid level, and a floating head is telescopically arranged on the floater; a processing mechanism is arranged at the top of the liquid level pipeline and used for controlling the floater to move; a position mechanism is arranged on the outer side of the liquid level pipeline and used for detecting and determining the position of the floater and adjusting the angle of the magnetic overturning plate. A control mechanism is further arranged on the outer side of the liquid level pipeline and used for controlling the position mechanism and the processing mechanism to move. The problem that the floater is stuck can be solved, the angle of the turning plate can be corrected, and normal work of the liquid level meter is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic flap level gauges, and in particular to a magnetic flap level gauge capable of effectively preventing a float from getting stuck. Background Art

[0002] The magnetic flap level gauge is a liquid level measuring instrument commonly used for liquids or fluids. It uses the principle of a magnetic float and combines an indicating device to measure the liquid level. It is widely used in chemical, petroleum, metallurgy, environmental protection, food and other industries; the float in the level gauge contains a strong magnetic material. When the liquid level changes, the float floats with the liquid, and the magnetism of the float will affect the display of the indicator. The indicator of the magnetic flap level gauge is usually composed of a series of flipping color flaps. The color of the flap will flip when the liquid level changes, and the color of the indicator is red and white; the current level gauge has some problems, for example, the float will get stuck, resulting in inaccurate liquid level detection, and the flip angle of the flap is inconsistent with the preset angle, affecting observation; based on this, the present invention proposes a magnetic flap level gauge that can solve the problem of float jamming, and can perform angle correction on the flap to ensure the normal operation of the level gauge. Summary of the Invention

[0003] In view of the above technical problems, the present invention can solve the problem of float jamming and can correct the angle of the flap to ensure the normal operation of the liquid level meter.

[0004] The solution used in the present invention is: a magnetic flap liquid level gauge that can effectively prevent the float from getting stuck, including a box body, a connecting valve is provided on the side of the box body, a liquid level pipe is connected to the connecting valve, a display seat is provided on the side of the liquid level pipe, and a magnetic flip plate is arranged on the display seat; a float is provided inside the liquid level pipe, an electromagnetic element is provided inside the float, the float moves with the change of the liquid level, and a floating head is provided on the float for extension and contraction; a processing mechanism is provided on the top of the liquid level pipe for controlling the movement of the float; a positioning mechanism is provided on the outside of the liquid level pipe for detecting and determining the position of the float and adjusting the angle of the magnetic flip plate; a control mechanism is also provided on the outside of the liquid level pipe for controlling the movement of the positioning mechanism and the processing mechanism.

[0005] Furthermore, an installation box is provided on the top of the liquid level pipeline, a supporting electric cylinder is provided on the installation box, a supporting part is provided on the telescopic rod of the supporting electric cylinder, a detection electric cylinder 1 is also provided on the installation box, a float detector is provided on the telescopic rod of the detection electric cylinder 1, which is used to check the surface defects of the float; a closing electric cylinder is also provided on the liquid level pipeline, a sealing plate is provided on the telescopic rod of the detection electric cylinder 1, which is used to seal the top of the liquid level pipeline, a motor 1 is provided on the outside of the installation box, and a belt structure is connected to the output shaft of the motor 1, which is used to drive the processing mechanism.

[0006] Furthermore, the magnetic flip plate includes a flip shaft rotatably mounted on the display base, the end of the flip shaft is connected to a rotating shaft, a travel contact is provided on the rotating shaft, an outer cylinder is provided on the display base and located outside the rotating shaft, a travel signal switch is provided on the outer cylinder, the travel contact flips and contacts the travel signal switch to output a feedback flip angle signal of the flip shaft.

[0007] Furthermore, an upper positioning part is provided on the top of the float, a signal transmitter is provided on the upper positioning part, a lower positioning part is provided on the bottom of the float, and a displacement detector is connected between the floating head and the float for outputting feedback floating head expansion and contraction signals.

[0008] Furthermore, the control mechanism includes a screw motor, a screw and a guide rod arranged on the outside of the liquid surface pipeline. The screw motor is used to drive the screw. A control slide is movably arranged on the screw and the guide rod. The control slide and the screw form a spiral pair. A fixed electric cylinder is arranged on the control slide for fixing the positioning mechanism and the processing mechanism respectively.

[0009] Furthermore, the positioning mechanism includes a position slide slidably mounted on the outside of the liquid level pipeline, a position signal switch is provided on the position slide, and an electromagnetic telescopic plate is telescopically provided, a spring 2 is connected between the electromagnetic telescopic plate and the position slide, a contact is provided at one end of the electromagnetic telescopic plate facing the position signal switch, the position slide moves outside the liquid level pipeline, the electromagnetic telescopic plate corresponds to the position of the float, the electromagnetic telescopic plate telescopically moves under the action of the electromagnetic element in the float, and the contact on the electromagnetic telescopic plate contacts the position signal switch to output a feedback position signal of the float.

[0010] Furthermore, a second inclined surface is provided on the position slide, and a fixing groove is opened on the position slide, an adjusting motor is provided on one side of the position slide, a belt structure is provided on the output shaft of the adjusting motor, an adjusting electric cylinder is rotatably installed on the position slide, and the adjusting electric cylinder is driven by the belt structure on the output shaft of the adjusting motor, a clamping barrel is provided on the telescopic rod of the adjusting electric cylinder, and an electromagnetic sliding clamping rod 2 is arranged on the clamping barrel; a fixing mechanism is provided on the outside of the liquid level pipeline for fixing the position slide and the processing mechanism.

[0011] Furthermore, the fixing mechanism includes a bracket arranged on the outside of the liquid surface pipeline, and fixed telescopic shafts are respectively telescopically arranged at both ends of the bracket, a spring is connected between the fixed telescopic shaft and the bracket, and the fixed telescopic shaft cooperates with the fixed groove on the position slide to fix the position slide. The processing mechanism includes a processing slide slidably arranged on the bracket, and a fixed groove is also provided on the processing slide. The fixed telescopic shaft cooperates with the fixed groove on the processing slide to achieve fixation, and a slope is also provided on the processing slide.

[0012] Furthermore, the processing mechanism also includes a connecting frame connected to the processing slide, a cross slide is rotatably provided on the top of the connecting frame, a mounting ring is provided on the cross slide, a detection electric cylinder 2 is provided on the mounting ring, a detector is provided on the telescopic rod of the detection electric cylinder 2, and a cleaning electric cylinder is provided on the mounting ring, a cleaning part is provided on the telescopic rod of the cleaning electric cylinder, a positioning electric cylinder is also provided on the mounting ring, a positioning frame is provided on the telescopic rod of the positioning electric cylinder, an angle electric cylinder is rotatably provided on the positioning frame, and an angle motor is fixedly provided, the angle motor is used to drive the angle electric cylinder, a positioning cylinder is provided on the telescopic rod of the angle electric cylinder, an electromagnetic sliding clamp rod 1 is provided on the positioning cylinder, and a signal receiver is provided inside the positioning cylinder.

[0013] Compared with the prior art, the present invention has the following advantages: (1) when the flip shaft flips, the stroke contact contacts the stroke signal switch, and the flip angle signal of the flip shaft is outputted and fed back through the stroke signal switch. When the float passes through the flip shaft, but the flip shaft does not flip or does not flip to the preset angle, for example, the liquid level changes too fast, that is, the float passes through the flip shaft too fast, resulting in the flip shaft not being able to achieve complete flipping, which can be adjusted by the position mechanism; (2) when the float is stuck, the liquid level will move and change from the gap between the float and the inner wall of the liquid level pipe. When the liquid level reaches the position of the float head, it will generate buoyancy on the float head, and the float head will move and retract. The displacement detector outputs a feedback signal of the expansion and contraction of the float head, thereby judging that the float is stuck; (3) by controlling the movement of the position slide, when the electromagnetic expansion plate corresponds to the stuck position of the float, the electromagnetic expansion plate is acted upon by the electromagnetic element in the float, and a repulsive effect occurs, causing the electromagnetic expansion plate to expand and contract, and the contact on the electromagnetic expansion plate contacts the position signal switch to output a feedback position signal of the float, and then the float is processed by the processing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the display stand installation structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the liquid surface pipeline installation structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the installation structure of the flip shaft of the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the end portion of the flip shaft of the present invention.

[0019] Figure 6 This is a schematic diagram of the float structure of the present invention.

[0020] Figure 7 It is a partial cross-sectional schematic diagram of the float of the present invention.

[0021] Figure 8 This is a schematic diagram of the mounting structure of the mounting ring of the present invention.

[0022] Figure 9 It is a schematic structural diagram of the positioning tube of the present invention.

[0023] Figure 10 Schematic diagram of the control mechanism structure of the present invention.

[0024] Figure 11 It is a schematic diagram of the installation structure of the position slide and the processing slide of the present invention.

[0025] Figure 12 This is a schematic diagram of the slide structure of the present invention.

[0026] Figure 13 This is a schematic diagram of the fixed telescopic shaft structure of the present invention.

[0027] Figure 14 This is a schematic diagram of the bracket installation structure of the present invention.

[0028] Figure 15 This is a schematic diagram of the position slide installation structure of the present invention.

[0029] Figure 16 This is a structural diagram of the position slide at another angle of the present invention.

[0030] Figure 17 This is a schematic diagram of the installation structure of the electromagnetic telescopic plate of the present invention.

[0031] Reference numerals: 1-box; 2-connecting valve; 3-liquid level pipe; 4-installation box; 5-supporting electric cylinder; 6-display base; 7-motor 1; 8-cross slide bar; 9-connecting frame; 10-closing electric cylinder; 11-sealing plate; 12-detection electric cylinder 1; 13-float detector; 14-turning shaft; 1401-rotating shaft; 1402-stroke contact; 15-stroke signal switch; 16-outer cylinder; 17-float; 18-upper positioning part; 19-lower positioning part; 20-floating head; 21-displacement detector; 22-installation ring; 23-detection electric cylinder 2; 24-clearing electric cylinder; 25-clearing part; 26- Positioning electric cylinder; 27- Positioning frame; 28- Angle electric cylinder; 29- Angle motor; 30- Positioning cylinder; 31- Electromagnetic sliding clamp rod 1; 32- Screw motor; 33- Screw; 3301- Guide rod; 34- Control slide; 35- Fixed electric cylinder; 36- Bracket; 37- Position slide; 3701- Inclined surface 2; 38- Processing slide; 3801- Inclined surface 1; 39- Fixed telescopic shaft; 40- Spring 1; 41- Adjusting motor; 42- Adjusting electric cylinder; 43- Position signal switch; 44- Clamp; 45- Electromagnetic sliding clamp rod 2; 46- Electromagnetic telescopic plate; 47- Spring 2. DETAILED DESCRIPTION

[0032] Example: Figures 1 to 17 As shown, a magnetic flap level gauge that can effectively prevent the float from getting stuck includes a box body 1, a connecting valve 2 is provided on the side of the box body 1, a liquid level pipe 3 is connected to the connecting valve 2, a valve is provided at the bottom of the liquid level pipe 3, a display seat 6 is provided on the side of the liquid level pipe 3, and a magnetic flip plate is arranged on the display seat 6; a float 17 is provided inside the liquid level pipe 3, an electromagnetic element is provided inside the float 17, the float 17 moves with the change of the liquid level, and a floating head 20 is telescopically provided on the float 17; a processing mechanism is provided on the top of the liquid level pipe 3 for controlling the movement of the float 17; a positioning mechanism is provided on the outside of the liquid level pipe 3 for detecting and determining the position of the float 17 and adjusting the angle of the magnetic flip plate; a control mechanism is also provided on the outside of the liquid level pipe 3 for controlling the movement of the positioning mechanism and the processing mechanism.

[0033] An installation box 4 is provided on the top of the liquid level pipeline 3, and a supporting electric cylinder 5 is provided on the installation box 4. A supporting part is provided on the telescopic rod of the supporting electric cylinder 5. A detection electric cylinder 12 is also provided on the installation box 4, and a float detector 13 is provided on the telescopic rod of the detection electric cylinder 12, which is used to check the surface defects of the float 17; a closed electric cylinder 10 is also provided on the liquid level pipeline 3, and a sealing plate 11 is provided on the telescopic rod of the closed electric cylinder 10, which is used to seal the top of the liquid level pipeline 3. A motor 7 is provided on the outside of the installation box 4, and a belt structure is connected to the output shaft of the motor 7 for driving the processing mechanism.

[0034] The magnetic flip plate includes a flip shaft 14 rotatably mounted on the display base 6, the end of the flip shaft 14 is connected to a rotating shaft 1401, a travel contact 1402 is provided on the rotating shaft 1401, an outer cylinder 16 is provided on the display base 6 and outside the rotating shaft 1401, a travel signal switch 15 is provided on the outer cylinder 16, the travel contact 1402 flips and contacts the travel signal switch 15 to output a feedback flip angle signal of the flip shaft 14; an upper positioning part 18 is provided on the top of the float 17, a signal transmitter is provided on the upper positioning part 18, a lower positioning part 19 is provided on the bottom of the float 17, and a displacement detector 21 is connected between the floating head 20 and the float 17, for outputting a feedback expansion and contraction signal of the floating head 20.

[0035] The control mechanism includes a screw motor 32, a screw 33 and a guide rod 3301 arranged on the outside of the liquid level pipe 3, the screw motor 32 is used to drive the screw 33, and a control slide 34 is movably arranged on the screw 33 and the guide rod 3301, the control slide 34 and the screw 33 form a spiral pair, and a fixed electric cylinder 35 is arranged on the control slide 34 for fixing the position mechanism and the processing mechanism respectively; the position mechanism includes a position slide 37 slidably mounted on the outside of the liquid level pipe 3, a position signal switch 43 is arranged on the position slide 37, and an electromagnetic telescopic plate 46 is telescopically arranged, a spring 47 is connected between the electromagnetic telescopic plate 46 and the position slide 37, and a contact is provided at one end of the electromagnetic telescopic plate 46 facing the position signal switch 43, the position slide 37 moves outside the liquid level pipe 3, and the electromagnetic telescopic plate 4 6 corresponds to the position of the float 17. The electromagnetic telescopic plate 46 telescopes and moves under the action of the electromagnetic element in the float 17. The contacts on the electromagnetic telescopic plate 46 contact the position signal switch 43 to output a position signal of the feedback float 17; a second inclined surface 3701 is provided on the position slide 37, and a fixing groove is opened on the position slide 37. An adjusting motor 41 is provided on one side of the position slide 37. A belt structure is provided on the output shaft of the adjusting motor 41. An adjusting electric cylinder 42 is rotatably installed on the position slide 37. The adjusting electric cylinder 42 is driven by the belt structure on the output shaft of the adjusting motor 41. A clamp 44 is provided on the telescopic rod of the adjusting electric cylinder 42, and an electromagnetic sliding clamp rod 2 45 is arranged on the clamp 44; a fixing mechanism is provided on the outside of the liquid level pipeline 3 for fixing the position slide 37 and the processing mechanism.

[0036] The fixing mechanism includes a bracket 36 arranged on the outside of the liquid surface pipe 3, and fixed telescopic shafts 39 are respectively telescopically arranged at both ends of the bracket 36. A spring 40 is connected between the fixed telescopic shaft 39 and the bracket 36, and the fixed telescopic shaft 39 cooperates with the fixed groove on the position slide 37 to fix the position slide 37. The processing mechanism includes a processing slide 38 slidably arranged on the bracket 36, and a fixed groove is also provided on the processing slide 38. The fixed telescopic shaft 39 cooperates with the fixed groove on the processing slide 38 to achieve fixation. A slope 3801 is also provided on the processing slide 38; the processing mechanism also includes a connecting frame 9 connected to the processing slide 38, and a cross slide 8 is rotatably provided on the top of the connecting frame 9. The cross slide 8 slides with the belt structure on the output shaft of the motor 7.

[0037] A mounting ring 22 is provided on the cross slide bar 8, and a detection electric cylinder 23 is provided on the mounting ring 22. A detector is provided on the telescopic rod of the detection electric cylinder 23, and a cleaning electric cylinder 24 is provided on the mounting ring 22. A cleaning part 25 is provided on the telescopic rod of the cleaning electric cylinder 24. A positioning electric cylinder 26 is also provided on the mounting ring 22, and a positioning frame 27 is provided on the telescopic rod of the positioning electric cylinder 26. An angle electric cylinder 28 is rotatably provided on the positioning frame 27, and an angle motor 29 is fixedly provided. The angle motor 29 is used to drive the angle electric cylinder 28. A positioning cylinder 30 is provided on the telescopic rod of the angle electric cylinder 28, and an electromagnetic sliding clamp rod 31 is provided on the positioning cylinder 30. A signal receiver is provided inside the positioning cylinder 30.

[0038] Working principle: During operation, the float 17 is located inside the liquid level pipe 3, and the float 17 moves with the changes in the liquid level. Every time the float 17 passes a flip shaft 14, it flips under the action of the electromagnetic element on the float 17. The flip shaft 14 is divided into two color areas, one red and one white. When the flip shaft 14 flips, the color indicates that the liquid level has reached that position; when the flip shaft 14 flips, the stroke contact 1402 contacts the stroke signal switch 15, and the stroke signal switch 15 outputs a flip angle signal of the flip shaft 14. When the float 17 passes the flip shaft 14, but the flip shaft 14 does not flip or does not flip the preset angle, for example, the liquid level changes too fast, that is, the float 17 passes the flip shaft 14 too fast, resulting in the flip shaft 14 being unable to flip. To achieve complete flipping, it can be adjusted through the position mechanism. Specifically, the telescopic rod of the fixed electric cylinder 35 cooperates with the fixed groove on the position slide 37, and the telescopic rod of the position slide 37 pushes the fixed telescopic shaft 39, so that the fixed telescopic shaft 39 disengages from the fixed groove on the position slide 37, and the control slide 34 can drive the position slide 37 to move. Specifically, the screw motor 32 works, the screw rod 33 rotates, the control slide 34 moves, and the position slide 37 is in the target position. The clamp 44 is controlled by adjusting the electric cylinder 42 to move to the outside of the rotating shaft 1401, and the rotating shaft 1401 is clamped by the electromagnetic sliding clamp rod 45. Then, the motor 41 works and the electric cylinder 42 is adjusted to rotate to drive the flip shaft 14 to flip, thereby realizing the angle adjustment of the flip shaft 14.

[0039] After a long period of operation, impurities may adhere to the inside of the liquid level pipe 3, causing the float 17 to become stuck. That is, the float 17 is stuck at a certain position, and the liquid level will change, making the liquid level position detection inaccurate. Therefore, it is necessary to solve the problem of the float 17 being stuck. Specifically, when the float 17 is stuck, the liquid level will move and change through the gap between the float 17 and the inner wall of the liquid level pipe 3. When the liquid level reaches the position of the float head 20, it will generate buoyancy on the float head 20, causing the float head 20 to extend and retract. The displacement detector 21 outputs a feedback signal of the extension and retraction of the float head 20, thereby determining that the float 17 is stuck. Subsequently, by controlling the movement of the position slide 37, when the electromagnetic extension plate 46 corresponds to the stuck position of the float 17, the electromagnetic extension plate 46 is acted upon by the electromagnetic element in the float 17, causing repulsion, causing the electromagnetic extension plate 46 to extend and retract. The contacts on the electromagnetic extension plate 46 contact the position signal switch 43 to output a feedback signal of the position of the float 17, which is then processed by the processing mechanism.

[0040] Specifically, by fixing the telescopic rod of the electric cylinder 35 to cooperate with the fixed groove on the processing slide 38 and pushing the fixed telescopic shaft 39 at the same time, the control slide 34 can drive the processing slide 38 to move, that is, the cross slide 8 extends toward the inside of the liquid surface pipe 3, and the motor 7 works to drive the cross slide 8 to rotate, and the closing electric cylinder 10 controls the sealing plate 11 to open the top of the liquid surface pipe 3, and the mounting ring 22 extends to the inside of the liquid surface pipe 3. At the target position, since the float 17 is stuck and there is a gap between the float 17 and the inner wall of the liquid surface pipe 3, the float 17 may have a stuck angle. The positioning frame 27 can be controlled to move in the radial direction by the positioning electric cylinder 26, and the angle electric cylinder 28 can be driven to rotate by the angle motor 29 to achieve angle adjustment. When the positioning cylinder 30 The internal signal receiver receives the signal from the signal transmitter on the upper positioning part 18, determines the position, and then controls the electromagnetic sliding clamp rod 31 to move to the outside of the upper positioning part 18. The upper positioning part 18 is clamped and fixed by the electromagnetic sliding clamp rod 31, and the position of the float 17 can be adjusted, that is, the jam is eliminated. Under normal circumstances, the position slide 37 and the processing slide 38 are fixed on the outside of the liquid level pipe 3, that is, the inclined surface 2 3701 on the position slide 37 is in contact with the fixed telescopic shaft 39, and the fixed telescopic shaft 39 can be extended and retracted, and finally cooperates with the fixed groove on the position slide 37. For the processing slide 38, the fixed telescopic shaft 39 is in contact with the inclined surface 1 3801, and the fixed telescopic shaft 39 can be extended and retracted, and finally cooperates with the fixed groove on the processing slide 38 to achieve fixation.

[0041] Subsequently, the float 17 can also be transferred to the installation box 4, and the float detector 13 can be controlled by the detection electric cylinder 12 to check the deformation of the surface of the float 17. The deformation of the float 17 can also cause a jamming phenomenon. When cleaning and maintaining the inside of the liquid surface pipe 3, for example, to remove impurities attached to the inner wall of the liquid surface pipe 3, the support part on the telescopic rod of the support electric cylinder 5 controller can be located below the float 17, and the support part cooperates with the lower positioning part 19 to support the float 17. Then the float 17 is transferred and extended to the inside of the liquid surface pipe 3 by controlling the mounting ring 22. The deformation of the inner wall of the liquid surface pipe 3 can be checked by detecting the detector on the telescopic rod of the detection electric cylinder 2 23 controller; further, the cleaning part 25 can be controlled by the cleaning electric cylinder 24 to contact the inner wall of the liquid surface pipe 3 to scrape off impurities.

Claims

1. A magnetic flap level gauge capable of effectively preventing a float from getting stuck, comprising a housing (1), a connecting valve (2) provided on the side of the housing (1), a liquid level pipe (3) connected to the connecting valve (2), a display seat (6) provided on the side of the liquid level pipe (3), and magnetic flip plates arranged on the display seat (6); characterized in that: A float (17) is provided inside the liquid surface pipe (3), and an electromagnetic element is provided inside the float (17). The float (17) moves in accordance with the change of the liquid surface, and a floating head (20) is telescopically provided on the float (17); a processing mechanism is provided on the top of the liquid surface pipe (3) for controlling the movement of the float (17); a positioning mechanism is provided on the outside of the liquid surface pipe (3) for detecting and determining the position of the float (17) and adjusting the angle of the magnetic flip plate; and a control mechanism is also provided on the outside of the liquid surface pipe (3) for controlling the movement of the positioning mechanism and the processing mechanism.

2. A magnetic flap level gauge capable of effectively preventing float jamming according to claim 1, characterized in that: The top of the liquid level pipe (3) is provided with an installation box (4), a supporting electric cylinder (5) is provided on the installation box (4), a supporting portion is provided on the telescopic rod of the supporting electric cylinder (5), a detection electric cylinder (12) is also provided on the installation box (4), a float detector (13) is provided on the telescopic rod of the detection electric cylinder (12) for checking surface defects of the float (17); a sealing electric cylinder (10) is also provided on the liquid level pipe (3), a sealing plate (11) is provided on the telescopic rod of the detection electric cylinder (12) for sealing the top of the liquid level pipe (3), a motor (7) is provided on the outside of the installation box (4), and a belt structure is connected to the output shaft of the motor (7) for driving the processing mechanism.

3. A magnetic flap level gauge capable of effectively preventing float jamming according to claim 1, characterized in that: The magnetic flip plate comprises a flip shaft (14) rotatably mounted on a display base (6); an end of the flip shaft (14) is connected to a rotating shaft (1401); a travel contact (1402) is provided on the rotating shaft (1401); an outer cylinder (16) is provided on the display base (6) and outside the rotating shaft (1401); a travel signal switch (15) is provided on the outer cylinder (16); the travel contact (1402) flips and contacts the travel signal switch (15) to output a feedback flip angle signal of the flip shaft (14).

4. A magnetic flap level gauge capable of effectively preventing float jamming according to claim 1, characterized in that: An upper positioning portion (18) is provided on the top of the float (17), a signal transmitter is provided on the upper positioning portion (18), a lower positioning portion (19) is provided on the bottom of the float (17), and a displacement detector (21) is connected between the floating head (20) and the float (17) for outputting feedback signals of expansion and contraction of the floating head (20).

5. A magnetic flap level gauge capable of effectively preventing float jamming according to claim 1, characterized in that: The control mechanism comprises a screw motor (32), a screw (33) and a guide rod (3301) arranged outside the liquid surface pipe (3). The screw motor (32) is used to drive the screw (33). A control slide (34) is movably arranged on the screw (33) and the guide rod (3301). The control slide (34) and the screw (33) form a spiral pair. A fixed electric cylinder (35) is arranged on the control slide (34) for fixing the position mechanism and the processing mechanism respectively.

6. A magnetic flap level gauge capable of effectively preventing float jamming according to claim 5, characterized in that: The position mechanism includes a position slide (37) slidably mounted on the outside of the liquid surface pipe (3), a position signal switch (43) is provided on the position slide (37), and an electromagnetic telescopic plate (46) is telescopically provided, a spring 2 (47) is connected between the electromagnetic telescopic plate (46) and the position slide (37), a contact is provided at one end of the electromagnetic telescopic plate (46) facing the position signal switch (43), the position slide (37) moves outside the liquid surface pipe (3), the electromagnetic telescopic plate (46) corresponds to the position of the float (17), the electromagnetic telescopic plate (46) telescopically moves under the action of the electromagnetic element in the float (17), and the contact on the electromagnetic telescopic plate (46) contacts the position signal switch (43) to output a position signal of the feedback float (17).

7. A magnetic flap level gauge capable of effectively preventing float jamming according to claim 6, characterized in that: The position slide (37) is provided with a second inclined surface (3701), and a fixing groove is opened on the position slide (37). An adjusting motor (41) is provided on one side of the position slide (37), and a belt structure is provided on the output shaft of the adjusting motor (41). An adjusting electric cylinder (42) is rotatably mounted on the position slide (37), and the adjusting electric cylinder (42) is driven by the belt structure on the output shaft of the adjusting motor (41). A clamping barrel (44) is provided on the telescopic rod of the adjusting electric cylinder (42), and an electromagnetic sliding clamping rod (45) is arranged on the clamping barrel (44); a fixing mechanism is provided on the outside of the liquid surface pipeline (3) for fixing the position slide (37) and the processing mechanism.

8. A magnetic flap level gauge capable of effectively preventing float jamming according to claim 7, characterized in that: The fixing mechanism includes a bracket (36) arranged on the outside of the liquid surface pipe (3), and fixed telescopic shafts (39) are respectively telescopically arranged at both ends of the bracket (36). A spring (40) is connected between the fixed telescopic shaft (39) and the bracket (36). The fixed telescopic shaft (39) cooperates with a fixed groove on the position slide (37) to fix the position slide (37). The processing mechanism includes a processing slide (38) slidably arranged on the bracket (36), and a fixed groove is also provided on the processing slide (38). The fixed telescopic shaft (39) cooperates with the fixed groove on the processing slide (38) to achieve fixation. A slope (3801) is also provided on the processing slide (38).

9. A magnetic flap level gauge capable of effectively preventing float jamming according to claim 8, characterized in that: The processing mechanism also includes a connecting frame (9) connected to the processing slide (38), a cross slide (8) is rotatably provided on the top of the connecting frame (9), a mounting ring (22) is provided on the cross slide (8), a detection electric cylinder 2 (23) is provided on the mounting ring (22), a detector is provided on the telescopic rod of the detection electric cylinder 2 (23), a cleaning electric cylinder (24) is provided on the mounting ring (22), a cleaning portion (25) is provided on the telescopic rod of the cleaning electric cylinder (24), a positioning electric cylinder (26) is further provided on the mounting ring (22), a positioning frame (27) is provided on the telescopic rod of the positioning electric cylinder (26), an angle electric cylinder (28) is rotatably provided on the positioning frame (27), and an angle motor (29) is fixedly provided, the angle motor (29) is used to drive the angle electric cylinder (28), a positioning cylinder (30) is provided on the telescopic rod of the angle electric cylinder (28), an electromagnetic sliding clamping rod 1 (31) is provided on the positioning cylinder (30), and a signal receiver is provided inside the positioning cylinder (30).

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