Low temperature liquid level gauge with leakage alarm structure

Abstract

The application relates to the field of low-temperature liquid level meters, and discloses a low-temperature liquid level meter with a leakage alarm structure, which comprises a liquid level meter body, an alarm structure arranged on the liquid level meter body, a transparent window fixedly embedded on the liquid level meter body, a flange installed at one end of the liquid level meter body, and a protective cylinder fixedly sleeved on the liquid level meter body. An end disc is arranged at one end of the protective cylinder. The glass cylinder of the protective structure can protect the transparent window on the liquid level meter body. When dust or even white mist is accumulated on the glass cylinder, the glass cylinder can be removed and reciprocally rotated on the protective cylinder through the rotating sleeve of the operation structure, so that the glass cylinder can be cleaned. The structure is simple, the operation is convenient, the cost is greatly reduced, and when part of the glass cylinder is scratched and worn to affect normal observation, the glass cylinder can be fully utilized by rotating the glass cylinder through the rotating sleeve and switching the other position on the glass cylinder to the transparent window.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-temperature liquid level meters, in particular to a low-temperature liquid level meter with a leakage alarm structure. BACKGROUND

[0002] The low-temperature liquid level meter is a special instrument for measuring the liquid level of low-temperature liquid, which can work stably in an extremely low-temperature environment and has the characteristics of high precision and corrosion resistance.

[0003] In the prior art, when the surface of the float is covered with hoarfrost, the servo motor can be started to drive the moving plate to move, the moving plate drives the sleeve shell to move, and then drives the wiping plate to move, so that the wiping plate moves along the surface of the float, thereby wiping off the hoarfrost on the surface of the float, realizing automatic wiping of hoarfrost, reducing the labor of the staff, greatly facilitating the staff to observe, ensuring the indicating performance of the float, solving the problems of personnel operation risk and damage to the glass panel caused by manual cleaning of hoarfrost on the panel of the liquid level meter, and bringing troubles to safe production.

[0004] The liquid level meter in the prior art has a complex structure, high manufacturing cost, and consumes electric energy, thereby increasing the working cost, and therefore, there is room for improvement. SUMMARY

[0005] In order to solve the problems in the background art, the present application provides a low-temperature liquid level meter with a leakage alarm structure.

[0006] The low-temperature liquid level meter with a leakage alarm structure provided by the present application adopts the following technical scheme:

[0007] The low-temperature liquid level meter with a leakage alarm structure comprises a liquid level meter body, an alarm structure is arranged on the liquid level meter body, a transparent window is fixedly embedded on the liquid level meter body, a flange is installed at one end of the liquid level meter body, a protective cylinder is fixedly sleeved on the liquid level meter body, an end disc is arranged at one end of the protective cylinder, and a protection structure is arranged on the protective cylinder.

[0008] The protection structure comprises an annular groove formed in the protective cylinder, an opening is formed in the groove wall of the annular groove corresponding to the transparent window, a glass cylinder is movably arranged in the annular groove, the glass cylinder is in the shape of a circular tube, the protective cylinder, an operating structure is arranged at one end of the protective cylinder, and cleaning structures are arranged on both sides of the opening in the protective cylinder.

[0009] The operating structure includes a first inner groove formed inside the protective cylinder near one end of the end plate. A turntable is movably arranged in the first inner groove. The first inner groove is connected to an annular groove. One side of the turntable is connected to one end of the glass cylinder. A rotating plate is fixedly connected to the middle of the other side of the turntable. A rotating block is fixedly sleeved on the rotating plate. The rotating block is cylindrical. A rotating sleeve is set at one end of the rotating plate through a positioning structure.

[0010] Preferably, the positioning structure includes a slot at one end of the end plate of the rotating plate, a rotating column is movably inserted into the slot, the end face of the rotating column is square, one end of the rotating column is connected to the inner wall of the rotating sleeve, a first spring is sleeved on the rotating column, the two ends of the first spring are respectively connected to the rotating plate and the inner wall of the rotating sleeve, a positioning rod is connected to the upper edge of the rotating sleeve, and multiple positioning holes are opened at equal angles around the circumference of the end plate, one end of the positioning rod is movably inserted into the positioning hole at the corresponding position.

[0011] Preferably, the alarm structure includes a processing box installed on the liquid level gauge body, a speaker is fixedly embedded in the processing box, a sensor is installed inside the liquid level gauge body, and the sensor is signal-connected to the processing device inside the processing box.

[0012] Preferably, the cleaning structure includes two grooves formed on the protective cylinder, the two grooves being distributed on both sides of the opening, the grooves communicating with an annular groove, a sleeve being provided in the groove through a flipping structure, a sponge tube being tightly fitted onto the sleeve, and a sealing structure being provided in the groove.

[0013] Preferably, the flipping structure includes a first U-shaped block disposed at one end of the groove, a first rotating shaft rotatably passing through the first U-shaped block, a flipping rod fixedly sleeved on the first rotating shaft, one end of the flipping rod being fixedly connected to the sleeve, and a transmission structure disposed at the other end of the protective cylinder.

[0014] Preferably, the sealing structure includes a second U-shaped block disposed on the side of the protective cylinder near one end of the groove, a second rotating shaft rotatably passing through the second U-shaped block, a sealing strip fixedly sleeved on the second rotating shaft, two torsion springs sleeved on the second rotating shaft, the two ends of the torsion springs being respectively connected to the inner walls of the sealing strip and the second U-shaped block, a limiting strip being provided on the inner side of the sealing strip, a limiting groove being formed on the inner side of the limiting strip, and a locking structure being provided between the sealing strip and the protective cylinder.

[0015] Preferably, the locking structure includes a locking block installed at the end of the cover strip away from the second rotating shaft, the locking block having a locking groove, a fixing block being provided on the side of the protective cylinder near the other end of the groove, the locking strip moving through the fixing block, the locking strip being "L" shaped, and a second spring connecting the locking strip and the fixing block.

[0016] Preferably, the transmission structure includes a second inner groove formed at the other end of the protective cylinder, the second inner groove communicating with an annular groove, a rotating ring disposed in the second inner groove, one end of the rotating ring being connected to the glass cylinder, a fixed ring being fixedly sleeved on the rotating ring, one end of the first U-shaped block being connected to a transmission rod, the transmission rod being rotatably inserted into the second inner groove, a gear being fixedly sleeved on one end of the transmission rod, and the gear being meshed with the teeth on the inner wall of the fixed ring.

[0017] In summary, the present invention has the following beneficial technical effects:

[0018] This invention, by setting up a protective structure, an operating structure, and a positioning structure, utilizes a glass tube in the protective structure to protect the transparent window on the level gauge body. When dust or even condensation forms on the glass tube, it can be cleaned simply by disengaging the positioning structure and rotating the glass tube back and forth on the protective tube using the rotating sleeve of the operating structure. The structure is simpler and easier to operate, greatly reducing costs. At the same time, when scratches or wear occur on parts of the glass tube, affecting normal observation, the glass tube can be rotated using the rotating sleeve to switch other positions on the glass tube to the transparent window, making full use of the glass tube.

[0019] This invention, through the design of a cleaning structure, a sealing structure, a flipping structure, and a transmission structure, utilizes a rotating sleeve to drive the sponge tube close to the cleaning structure to rotate, resulting in a more thorough cleaning of the glass tube. Simultaneously, the transmission structure causes the sponge tube of the cleaning structure to rotate in the same direction as the glass tube, increasing the static friction between the glass tube and the sponge tube. This not only ensures a more thorough cleaning of the glass tube but also makes full use of the sponge tube. The sealing structure effectively seals the grooves in the cleaning structure to prevent dust accumulation, and when the sealing structure is opened, the flipping structure allows the sponge tube to be rotated out of the grooves, facilitating sponge tube replacement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a cryogenic level gauge with a leakage alarm structure according to an embodiment of the present invention;

[0021] Figure 2 This is an embodiment of the present invention. Figure 1 Enlarged view of the structure at point A;

[0022] Figure 3 This is an embodiment of the present invention. Figure 1 Enlarged view of the structure at point B;

[0023] Figure 4 This is an embodiment of the present invention. Figure 1 Enlarged view of the structure at point C;

[0024] Figure 5This is a schematic diagram of the structure of the liquid level gauge body in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the protective cylinder in an embodiment of the present invention;

[0026] Figure 7 This is an embodiment of the present invention. Figure 6 Enlarged view of the structure at point D;

[0027] Figure 8 This is a schematic diagram of the structure in the first inner groove and the second inner groove in an embodiment of the present invention;

[0028] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged view of the structure at point E.

[0029] Explanation of reference numerals in the attached drawings: 1. Level gauge body; 2. Transparent window; 3. Protective cylinder; 4. Annular groove; 5. Glass cylinder; 6. End plate; 7. Flange; 8. Opening; 9. First inner groove; 10. Turntable; 11. Rotating block; 12. Rotating plate; 13. Rotating sleeve; 14. Rotating column; 15. First spring; 16. Slot; 17. Positioning rod; 18. Positioning hole; 19. Processing box; 20. Speaker; 21. Groove; 2 2. Sleeve; 23. Sponge tube; 24. First rotating shaft; 25. First U-shaped block; 26. Flipping rod; 27. Second U-shaped block; 28. Second rotating shaft; 29. ​​Covering strip; 30. Limiting strip; 31. Limiting groove; 32. Locking block; 33. Locking groove; 34. Fixing block; 35. Locking strip; 36. Second spring; 37. Second inner groove; 38. Rotating ring; 39. Fixing ring; 40. Gear; 41. Transmission rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0031] This invention discloses a cryogenic level gauge with a leakage alarm structure. (Refer to...) Figures 1-9 A cryogenic level gauge with a leakage alarm structure includes a level gauge body 1, an alarm structure on the level gauge body 1, a transparent window 2 fixedly embedded on the level gauge body 1, a flange 7 installed at one end of the level gauge body 1, a protective cylinder 3 fixedly sleeved on the level gauge body 1, an end plate 6 at one end of the protective cylinder 3, and a protective structure on the protective cylinder 3.

[0032] The protective structure includes an annular groove 4 inside the protective cylinder 3, with an opening 8 on the wall of the annular groove 4 corresponding to the transparent window 2, and a glass cylinder 5 movably installed in the annular groove 4. The glass cylinder 5 is in the shape of a round tube. The protective cylinder 3 has an operating structure at one end, and cleaning structures are provided on both sides of the opening 8 inside the protective cylinder 3.

[0033] The operating structure includes a first inner groove 9 opened inside the protective cylinder 3 near one end of the end plate 6. A turntable 10 is movably arranged in the first inner groove 9. The first inner groove 9 is connected to the annular groove 4. One side of the turntable 10 is connected to one end of the glass cylinder 5. A rotating plate 12 is fixedly connected to the middle of the other side of the turntable 10. A rotating block 11 is fixedly sleeved on the rotating plate 12. The rotating block 11 is cylindrical. A rotating sleeve 13 is set at one end of the rotating plate 12 through a positioning structure.

[0034] The positioning structure includes a slot 16 at one end of the end plate 6 through the rotating plate 12. A rotating column 14 is movably inserted into the slot 16. The end face of the rotating column 14 is square. One end of the rotating column 14 is connected to the inner wall of the rotating sleeve 13. A first spring 15 is sleeved on the rotating column 14. The two ends of the first spring 15 are respectively connected to the inner walls of the rotating plate 12 and the rotating sleeve 13. A positioning rod 17 is connected to the upper edge of the rotating sleeve 13. Multiple positioning holes 18 are opened at equal angles around the circumference of the end plate 6. One end of the positioning rod 17 is movably inserted into the corresponding positioning hole 18. The glass tube 5 and the protective tube 3 together provide protection for the liquid level gauge body 1. The operation can be observed through the glass tube 5 and the transparent window 2. When dust accumulates on the glass tube 5... When dealing with the problem of condensation and white frost, the rotating sleeve 13 is used to pull the rotating column 14 to move in the slot 16 of the rotating plate 12, and one end of the positioning rod 17 is pulled out from the positioning hole 18. The positioning of the rotating sleeve 13 is released on the end plate 6. Then, the rotating sleeve 13 is used to rotate the glass tube 5 back and forth. This can deal with the condensation and dust accumulation on the glass tube 5. When the exposed part of the glass tube 5 is scratched and affects the normal observation work, the rotating sleeve 13 can also be used to rotate the glass tube 5 and switch the other position of the glass tube 5 to the opening 8 for use. This ensures that the observation work can be carried out normally, while the glass tube 5 is fully utilized. It is also easy to operate, has a simpler structure, and reduces manufacturing costs.

[0035] The alarm structure includes a processing box 19 installed on the liquid level gauge body 1, a speaker 20 fixedly embedded in the processing box 19, a sensor installed inside the liquid level gauge body 1, and the sensor is connected to the processing device inside the processing box 19. When a leak occurs inside the liquid level gauge body 1, the sensor senses the liquid level inside the liquid level gauge body 1 and transmits the signal to the processing device inside the processing box 19. The processing device controls the speaker 20 to perform an alarm.

[0036] See Figures 1-9 The cleaning structure includes two grooves 21 opened on the protective cylinder 3. The two grooves 21 are distributed on both sides of the opening 8. The grooves 21 are connected to the annular groove 4. A sleeve 22 is set in the groove 21 through a flipping structure. A sponge cylinder 23 is tightly fitted on the sleeve 22. A sealing structure is set in the groove 21.

[0037] The flipping structure includes a first U-shaped block 25 disposed at one end of the groove 21, a first rotating shaft 24 rotating through the first U-shaped block 25, a flipping rod 26 fixedly sleeved on the first rotating shaft 24, one end of the flipping rod 26 fixedly connected to the sleeve 22, and a transmission structure disposed at the other end inside the protective cylinder 3;

[0038] The sealing structure includes a second U-shaped block 27 disposed on the side of the protective cylinder 3 near the groove 21. A second rotating shaft 28 rotates through the second U-shaped block 27. A sealing strip 29 is fixedly sleeved on the second rotating shaft 28. Two torsion springs are sleeved on the second rotating shaft 28. The two ends of the torsion springs are respectively connected to the inner walls of the sealing strip 29 and the second U-shaped block 27. A limiting strip 30 is provided on the inner side of the sealing strip 29. A limiting groove 31 is opened on the inner side of the limiting strip 30. A locking structure is provided between the sealing strip 29 and the protective cylinder 3.

[0039] The locking structure includes a locking block 32 installed on the end of the cover bar 29 away from the second rotating shaft 28. The locking block 32 has a locking groove 33. A fixing block 34 is provided on the side of the protective cylinder 3 near the other end of the groove 21. A locking strip 35 moves through the fixing block 34. The locking strip 35 is "L" shaped. A second spring 36 is connected between the locking strip 35 and the fixing block 34.

[0040] The transmission structure includes a second inner groove 37 located at the other end of the protective cylinder 3, which communicates with the annular groove 4. A rotating ring 38 is disposed in the second inner groove 37, with one end of the rotating ring 38 connected to the glass cylinder 5. A fixing ring 39 is fixedly sleeved on the rotating ring 38. One end of the first U-shaped block 25 is connected to a transmission rod 41, which rotatably inserts into the second inner groove 37. A gear 40 is fixedly sleeved on one end of the transmission rod 41, and the gear 40 meshes with the teeth on the inner wall of the fixing ring 39. When the glass cylinder 5 rotates, it rotates close to the sponge cylinder 23, thus cleaning the glass cylinder 5 more thoroughly. At the same time, the rotation of the glass cylinder 5 drives the rotating ring 38 and the fixing ring 39 to rotate as a whole, which is achieved through the gear 40 and the transmission rod. 41 drives the sleeve 22 and the sponge tube 23 to rotate in the same direction as the glass tube 5, increasing the static friction between the sponge tube 23 and the glass tube 5, making the glass tube 5 cleaner. When the sponge tube 23 needs to be replaced after long-term use, one end of the clip 35 can be pulled out from the slot 33 of the clip block 32 on the fixing block 34. Under the action of the torsion spring, the cover strip 29 and the limiting strip 30 pop out from the groove 21. The limiting strip 30 limits the sponge tube 23 in the groove 21, allowing the sponge tube 23 to rotate smoothly. After the cover strip 29 pops out, the sleeve 22 is rotated out from the groove 21 using the first rotating shaft 24 as the axis, and the sponge tube 23 is pulled out from the sleeve 22 for replacement. The operation is simple and convenient.

[0041] The implementation principle of a cryogenic level gauge with a leakage alarm structure according to an embodiment of the present invention is as follows: When the level gauge is working, the glass tube 5 and the protective tube 3 together protect the main body 1 of the level gauge. Observation can be carried out through the glass tube 5 and the transparent window 2. When dust accumulation or frost condensation occurs on the glass tube 5, the rotating sleeve 13 is used to pull the rotating column 14 to move in the slot 16 of the rotating plate 12, and one end of the positioning rod 17 is pulled out from the positioning hole 18. The positioning of the rotating sleeve 13 is released on the end plate 6. Then, the rotating sleeve 13 is used to rotate the glass tube 5 back and forth. This can deal with the frost condensation and dust accumulation on the glass tube 5. When the exposed part of the glass tube 5 is scratched and affects normal observation... During operation, the rotating sleeve 13 can be used to rotate the glass tube 5, switching other positions of the glass tube 5 to the opening 8 for use. This ensures that the observation work can proceed normally while making full use of the glass tube 5. It is also convenient to operate, has a simpler structure, and reduces manufacturing costs. When the glass tube 5 rotates, it rotates in close contact with the sponge tube 23, which makes the glass tube 5 cleaner. At the same time, the rotation of the glass tube 5 drives the rotating ring 38 and the fixed ring 39 to rotate as a whole. Through the gear 40 and the transmission rod 41, the sleeve 22 and the sponge tube 23 rotate as a whole in the same direction as the glass tube 5, which increases the static friction generated between the sponge tube 23 and the glass tube 5, making the glass tube 5 cleaner.

[0042] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A cryogenic level gauge with a leakage alarm structure, comprising a level gauge body (1), characterized in that: An alarm structure is provided on the liquid level gauge body (1), a transparent window (2) is fixedly embedded on the liquid level gauge body (1), a flange (7) is installed at one end of the liquid level gauge body (1), a protective cylinder (3) is fixedly sleeved on the liquid level gauge body (1), an end plate (6) is provided at one end of the protective cylinder (3), and a protective structure is provided on the protective cylinder (3); The protective structure includes an annular groove (4) inside the protective cylinder (3), with an opening (8) on the groove wall corresponding to the transparent window (2), and a glass cylinder (5) movably disposed in the annular groove (4). The glass cylinder (5) is in the shape of a round tube. The protective cylinder (3) has an operating structure at one end, and cleaning structures are provided on both sides of the opening (8) inside the protective cylinder (3). The operating structure includes a first inner groove (9) opened inside the protective cylinder (3) near the end plate (6), a turntable (10) is movably arranged in the first inner groove (9), the first inner groove (9) is connected to the annular groove (4), one side of the turntable (10) is connected to one end of the glass cylinder (5), and a rotating plate (12) is fixedly connected to the middle of the other side of the turntable (10). A rotating block (11) is fixedly sleeved on the rotating plate (12), the rotating block (11) is cylindrical, and a rotating sleeve (13) is set at one end of the rotating plate (12) through a positioning structure. The positioning structure includes a slot (16) opened at one end of the end plate (6) through the rotating plate (12), a rotating column (14) is movably inserted into the slot (16), the end face of the rotating column (14) is square, one end of the rotating column (14) is connected to the inner wall of the rotating sleeve (13), a first spring (15) is sleeved on the rotating column (14), the two ends of the first spring (15) are respectively connected to the inner wall of the rotating plate (12) and the rotating sleeve (13), a positioning rod (17) is connected at the upper edge of the rotating sleeve (13), and multiple positioning holes (18) are opened at equal angles around the circumference of the end plate (6), and one end of the positioning rod (17) is movably inserted into the positioning hole (18) at the corresponding position; The cleaning structure includes two grooves (21) formed on the protective cylinder (3), the two grooves (21) are distributed on both sides of the opening (8), the grooves (21) are connected to the annular groove (4), a sleeve (22) is set in the groove (21) through a flipping structure, a sponge cylinder (23) is fitted on the sleeve (22), and a sealing structure is set in the groove (21); The flipping structure includes a first U-shaped block (25) set at one end of the groove (21), the first U-shaped block (25) rotates through the first rotating shaft (24), the first rotating shaft (24) is fixedly sleeved on the first rotating shaft (24), one end of the flipping rod (26) is fixedly connected to the sleeve (22), and the other end of the protective cylinder (3) is provided with a transmission structure; The transmission structure includes a second inner groove (37) opened at the other end of the protective cylinder (3). The second inner groove (37) is connected to the annular groove (4). A rotating ring (38) is provided in the second inner groove (37). One end of the rotating ring (38) is connected to the glass cylinder (5). A fixing ring (39) is fixedly sleeved on the rotating ring (38). One end of the first U-shaped block (25) is connected to the transmission rod (41). The transmission rod (41) is rotatably inserted into the second inner groove (37). A gear (40) is fixedly sleeved on one end of the transmission rod (41). The gear (40) meshes with the teeth on the inner wall of the fixing ring (39).

2. The cryogenic level gauge with a leakage alarm structure according to claim 1, characterized in that: The alarm structure includes a processing box (19) installed on the liquid level gauge body (1), a speaker (20) is fixedly embedded in the processing box (19), a sensor is installed inside the liquid level gauge body (1), and the sensor is signal connected to the processing device inside the processing box (19).

3. A cryogenic level gauge with a leakage alarm structure according to claim 1, characterized in that: The sealing structure includes a second U-shaped block (27) disposed on the side of the protective cylinder (3) near the groove (21). The second U-shaped block (27) rotates through a second rotating shaft (28). A sealing strip (29) is fixedly sleeved on the second rotating shaft (28). Two torsion springs are sleeved on the second rotating shaft (28). The two ends of the torsion springs are respectively connected to the inner walls of the sealing strip (29) and the second U-shaped block (27). A limiting strip (30) is provided on the inner side of the sealing strip (29). A limiting groove (31) is opened on the inner side of the limiting strip (30). A locking structure is provided between the sealing strip (29) and the protective cylinder (3).

4. A cryogenic level gauge with a leakage alarm structure according to claim 3, characterized in that: The locking structure includes a locking block (32) installed on the end of the cover strip (29) away from the second rotating shaft (28). The locking block (32) has a locking groove (33). A fixing block (34) is provided on the side of the protective cylinder (3) near the other end of the groove (21). A locking strip (35) moves through the fixing block (34). The locking strip (35) is "L" shaped. A second spring (36) is connected between the locking strip (35) and the fixing block (34).

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