A waterproof immersion pressure level gauge

Abstract

The present invention relates to the technical field of liquid level gauges, and in particular to a waterproof immersion pressure liquid level gauge, comprising a mounting plate and a fixing cylinder, a first circular hole being passed through the middle of the top of the mounting plate, a bottom plate being provided on the outer side of the top of the mounting plate corresponding to the first circular hole, a connecting column being fixedly connected to the inner wall of the fixing cylinder, a liquid level gauge body being fixedly connected to the top of the connecting column, a sealing assembly mechanism being provided between the connecting column and the bottom plate, a quick installation mechanism being provided between the mounting plate and the fixing cylinder, a cable being fixedly passed through the middle of the bottom end of the bottom plate, a probe being fixedly connected to the bottom end of the cable, and a limit protection mechanism being provided on the outer wall of the probe; the present invention prevents moisture from penetrating into the interior of the liquid level gauge body from the connection during use, avoids short circuits in internal circuit elements, prevents damage to circuit elements, and prevents impact on the measurement function of the liquid level gauge.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid level gauges, in particular to a waterproof immersion pressure liquid level gauge. Background Art

[0002] With the progress of society and technology, many application scenarios are increasingly dependent on the support of liquid level measurement technology. Different application scenarios have different requirements for the performance indicators of liquid level meters. This closed submersible liquid level meter just meets the needs of diversified application scenarios. Compared with similar products on the current market, its performance is more optimized and efficient, and it can provide more accurate liquid level measurement values, effectively reducing and avoiding measurement errors. In addition, the liquid level meter adopts innovative waterproof sealing technology to ensure its long-term stable operation, thereby reducing overall measurement costs and maintenance costs.

[0003] At present, in the existing technology, professional tools are not used when installing the connectors of cables and submersible liquid level gauges, which will lead to insufficient tightening torque and may cause the connectors to fail to achieve the expected tightening effect, resulting in loosening during subsequent use. As a result, moisture will enter the interior of the submersible liquid level gauge from the loose position, causing a short circuit in the internal circuit elements, resulting in damage to the circuit elements, affecting the measurement function of the liquid level gauge, and thus affecting the accuracy of the measurement data. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a waterproof immersion pressure level gauge.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a waterproof immersion pressure level gauge, comprising a mounting plate and a fixing cylinder, a first circular hole being penetrated in the middle of the top of the mounting plate, a bottom plate being provided on the outer side of the top of the mounting plate corresponding to the first circular hole, a connecting column being fixedly connected to the inner wall of the fixing cylinder, a liquid level gauge body being fixedly connected to the top of the connecting column, a sealing assembly mechanism being provided between the connecting column and the bottom plate, a quick installation mechanism being provided between the mounting plate and the fixing cylinder, a cable being fixedly passed through the middle of the bottom end of the bottom plate, a probe being fixedly connected to the bottom end of the cable, and a limit protection mechanism being provided on the outer wall of the probe;

[0006] The sealing assembly mechanism includes an extrusion ring fixedly connected to the top of the base plate, and an annular groove formed at the bottom of the connecting column. An annular airbag is fixedly connected to the top of the annular groove. The extrusion ring is inserted into the annular groove and presses the annular airbag to deform it and make close contact with the inner wall of the annular groove to prevent moisture from penetrating.

[0007] The quick installation mechanism includes square grooves symmetrically provided on both sides of the inner wall of the fixed cylinder, two groups of square grooves are connected to each other at one end close to each other with a telescopic groove, and the inner walls of the two groups of telescopic grooves are provided with limit blocks that move back and forth. It also includes columns fixedly connected to the top of the mounting plate symmetrically on both sides, and the top of the two groups of columns close to each other at one end are provided with a limit groove, and the limit block moves and is stuck in the limit groove to complete the quick installation of the fixed cylinder.

[0008] Preferably, the sealing assembly mechanism includes a positioning plate fixedly connected to the top of the base plate and symmetrically distributed, and a positioning groove symmetrically distributed on the outer wall of the connecting column. The shapes of the two positioning grooves and the two positioning plates are respectively matched, and the two positioning plates have different widths.

[0009] Preferably, the sealing assembly mechanism also includes telescopic holes passing through the outer wall of the connecting column on both sides, the tops of the two telescopic holes are connected to a slide groove, the inner walls of the two slide grooves are provided with sliders, springs are fixedly connected between the two groups of sliders and the slide grooves, the bottom ends of the two sliders are fixedly connected to the telescopic column and are provided in the telescopic hole, the two telescopic columns are fixedly embedded with magnets at one end away from each other, square slots are provided on both sides of the outer wall of the extrusion ring, and the two telescopic columns are respectively clamped in the two square slots.

[0010] Preferably, the sealing assembly mechanism further includes a positioning sealing ring fixedly connected to the bottom end of the base plate, and a positioning sealing groove provided on the outside of the first circular hole corresponding to the top end of the mounting plate, wherein the positioning sealing groove and the positioning sealing ring are adapted in shape.

[0011] Preferably, the quick installation mechanism also includes square holes passing through both sides of the fixed cylinder, and the two square holes are connected to a placement groove at one end close to each other, and the two ends of the two placement grooves are connected to circular grooves, and a rotating shaft is rotated through the two groups of circular grooves, and a coil spring is fixedly connected between the two rotating shafts and the two groups of circular grooves, and a closing plate is fixedly connected between the outer walls of the two rotating shafts corresponding to the coil springs.

[0012] Preferably, both ends of the two rotating shafts are fixedly connected with threaded rods, and the two groups of limit blocks are each provided with a threaded groove that is adapted to the shape of the threaded rod at one end close to each other.

[0013] Preferably, a fixed pipe is fixedly connected to the outside of the first circular hole at the bottom end of the mounting plate, a diverter plate is fixedly connected to one side of the outer wall of the fixed pipe, and a plurality of water inlets are penetrated on the other side of the outer wall of the fixed pipe.

[0014] Preferably, the position limiting protection mechanism includes a protection ring fixedly connected to the probe, an annular cavity is provided inside the protection ring, a plurality of second circular holes are passed through the outer wall of the annular cavity, and the inner walls of the plurality of second circular holes are all slidably connected to fixed columns.

[0015] Preferably, the top of the protective ring is fixedly connected to a first conduit, the first conduit is fixedly connected to the base plate, the inner wall of the first conduit is slidably connected to a telescopic tube, the top of the telescopic tube is fixedly connected to a clamping ring, an elastic member is fixedly connected between the telescopic tube and the base plate, the top of the annular airbag is fixedly connected to a second conduit and passes through the connecting column, and the bottom end of the second conduit is provided with an annular groove adapted to the clamping ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The sealing assembly mechanism can be used to seal the connection between the cable and the level gauge body, preventing moisture from penetrating into the level gauge body from the connection during use, avoiding short circuits in internal circuit components, preventing damage to circuit components, and preventing the measurement function of the level gauge from being affected;

[0018] 2. The limit protection mechanism can prevent the probe from shaking and hitting the inner wall of the fixed tube when it is placed in the fixed tube, thereby preventing it from being damaged. This can protect the probe and extend its service life. In addition, the probe can be fixed to prevent it from shaking during the measurement process, thereby improving the accuracy of the measurement results.

[0019] 3. The quick installation mechanism can be quickly aligned during installation, thus saving installation time and improving installation efficiency. After installation, the level meter can be firmly fixed on the mounting plate to prevent it from being easily disassembled after installation, thereby improving safety.

[0020] 4. The sealing assembly mechanism will open the limit protection mechanism during the assembly process, so that the limit operation can be completed at the same time as the sealing is completed. Similarly, the fixed cylinder can be quickly installed when the sealing assembly is completed, thereby improving the linkage effect between the structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of a waterproof immersion pressure level gauge of the present invention;

[0022] Figure 2 This is a bottom view of a waterproof immersion pressure level gauge according to the present invention from another perspective;

[0023] Figure 3 This is a cross-sectional view of a fixing cylinder of a waterproof immersion pressure level gauge of the present invention;

[0024] Figure 4 This is a bottom view of a mounting plate of a waterproof immersion pressure level gauge according to the present invention;

[0025] Figure 5 This is a diagram showing the separation of the mounting plate and the fixing cylinder of a waterproof immersion pressure level gauge of the present invention;

[0026] Figure 6 The present invention is a waterproof immersion pressure level gauge Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 A further cross-sectional view of a fixing cylinder of a waterproof immersion pressure level gauge of the present invention;

[0028] Figure 8 This is a structural separation diagram of a fixed cylinder of a waterproof immersion pressure level gauge of the present invention;

[0029] Figure 9 This is a cross-sectional view of a connecting column of a waterproof immersion pressure level gauge of the present invention;

[0030] Figure 10 The present invention is a waterproof immersion pressure level gauge Figure 9 Enlarged view of point B in the middle;

[0031] Figure 11 This is a cross-sectional view of the bottom plate of a waterproof immersion pressure level gauge of the present invention;

[0032] Figure 12 The present invention is a waterproof immersion pressure level gauge Figure 11 Enlarged view of point C in the middle;

[0033] Figure 13 The figure is a cross-sectional view of a protective ring of a waterproof immersion pressure level gauge according to the present invention.

[0034] Figure: 1. Mounting plate; 2. Fixing tube; 3. Level gauge body; 4. Manifold; 5. Fixing tube; 6. Connecting column; 7. Bottom plate; 8. Cable; 9. Protective ring; 10. Probe; 11. First circular hole; 12. Magnet; 13. Extrusion ring; 14. Square slot; 15. Positioning seal ring; 16. First conduit; 17. Positioning seal groove; 18. Positioning plate; 19. Column; 20. Limiting groove; 21. Positioning groove 22. Square groove; 23. Limit block; 24. Closing plate; 25. Threaded rod; 26. Coil spring; 27. Threaded groove; 28. Telescopic groove; 29. Circular groove; 30. Placement groove; 31. Square hole; 32. Rotating shaft; 33. Annular airbag; 34. Spring; 35. Telescopic column; 36. Annular groove; 37. Second conduit; 38. Slider; 39. Slide; 40. Annular cavity; 41. Second circular hole; 42. Fixed column. DETAILED DESCRIPTION

[0035] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0036] like Figures 1-13 A waterproof immersion pressure level gauge is shown, comprising a mounting plate 1 and a fixing cylinder 2, a first circular hole 11 being passed through the middle of the top of the mounting plate 1, a bottom plate 7 being provided on the outer side of the top of the mounting plate 1 corresponding to the first circular hole 11, a connecting column 6 being fixedly connected to the inner wall of the fixing cylinder 2, a liquid level gauge body 3 being fixedly connected to the top of the connecting column 6, a sealing assembly mechanism being provided between the connecting column 6 and the bottom plate 7, a quick installation mechanism being provided between the mounting plate 1 and the fixing cylinder 2, a cable 8 being fixedly passed through the middle of the bottom end of the bottom plate 7, a probe 10 being fixedly connected to the bottom end of the cable 8, a limited position protection mechanism being provided on the outer wall of the probe 10, a sealing treatment being performed by the provided sealing assembly mechanism to prevent external moisture from entering the interior of the liquid level gauge body 3, thereby protecting the internal electronic components and extending the service life, the quick installation mechanism being provided to improve the installation efficiency during installation, and the limited position protection mechanism being provided to protect the probe 10;

[0037] like Figure 5-Figure 6 、 Figure 9-10 As shown, the sealing assembly mechanism includes an extrusion ring 13 fixedly connected to the top of the base plate 7, and an annular groove 36 opened at the bottom end of the connecting column 6. The top of the annular groove 36 is fixedly connected to the annular airbag 33. The extrusion ring 13 is inserted into the annular groove 36 and presses the annular airbag 33 to deform it and make close contact with the inner wall of the annular groove 36 to prevent moisture from penetrating.

[0038] like Figure 6-Figure 8 As shown, the quick installation mechanism includes square grooves 22 symmetrically provided on both sides of the inner wall of the fixed cylinder 2, and the two groups of square grooves 22 are connected to each other at one end close to each other with a telescopic groove 28, and the inner walls of the two groups of telescopic grooves 28 are provided with limit blocks 23 that move back and forth. It also includes columns 19 fixedly connected to the top of the mounting plate 1 symmetrically on both sides, and the two groups of columns 19 are provided with a limit groove 20 at the top of one end close to each other. The limit block 23 moves and is stuck in the limit groove 20 to complete the quick installation of the fixed cylinder 2.

[0039] like Figure 6 、 Figure 11 As shown, the sealing assembly mechanism includes symmetrically distributed positioning plates 18 fixedly connected to the top of the base plate 7, and symmetrically distributed positioning grooves 21 provided on the outer wall of the connecting column 6. The two positioning grooves 21 are symmetrically shaped and matched with the two positioning plates 18, and the two positioning plates 18 have different widths. The different widths of the positioning plates 18 allow for rapid assembly, ensuring precise docking of the various structures and facilitating subsequent operations.

[0040] like Figure 6 、 Figure 10 As shown, the sealing assembly mechanism also includes telescopic holes passing through the outer wall of the connecting column 6 on both sides, the tops of the two telescopic holes are connected to the slide groove 39, the inner walls of the two slide grooves 39 are provided with sliders 38, and the two groups of sliders 38 and the slide grooves 39 are fixedly connected with springs 34. The bottom ends of the two sliders 38 are fixedly connected to the telescopic columns 35 and are arranged in the telescopic holes. The two telescopic columns 35 are fixedly embedded with magnets 12 at one end away from each other, and square slots 14 are provided on both sides of the outer wall of the extrusion ring 13. The two telescopic columns 35 are respectively clamped in the two square slots 14. The slider 38 is limited by the slide groove 39 to ensure that the slider 38 can only move back and forth on one axis, and the spring 34 can perform the reset operation, and the telescopic column 35 moves in the telescopic hole and limits the telescopic column 35. In addition, the telescopic columns 35 are provided with inclined surfaces at one end close to each other, which makes it convenient to insert the telescopic columns 35 into the square slot 14 during assembly to complete the limiting operation, and the setting of the magnet 12 can be adsorbed with it by means of an external magnetic column and pulled to facilitate the release of the limit operation.

[0041] like Figure 6 As shown, the sealing assembly mechanism also includes a positioning sealing ring 15 fixedly connected to the bottom end of the base plate 7, and a positioning sealing groove 17 formed at the top end of the mounting plate 1, corresponding to the outside of the first circular hole 11. The positioning sealing groove 17 and the positioning sealing ring 15 are shaped to match. The cooperation between the positioning sealing groove 17 and the positioning sealing ring 15 prevents moisture from penetrating into the fixing tube 2 through the first circular hole 11, further improving the waterproof effect.

[0042] like Figure 7 、 Figure 8 As shown, the quick installation mechanism also includes square holes 31 provided on both sides of the fixing cylinder 2. The two square holes 31 are connected to a placement slot 30 at one end near each other. Both ends of the placement slots 30 are connected to circular slots 29. A rotating shaft 32 is rotatably passed through both sets of circular slots 29. Coil springs 26 are fixedly connected between the two rotating shafts 32 and the two sets of circular slots 29. A closing plate 24 is fixedly connected between the outer walls of the two rotating shafts 32 and the corresponding coil springs 26. A tool that fits the square holes 31 can be inserted and push the closing plate 24 to flip. When flipping, the closing plate 24 can rotate with the rotating shaft 32, and the coil spring 26 can reset the rotating shaft 32, causing the closing plate 24 to be stuck in the placement slot 30.

[0043] like Figure 7 、 Figure 8As shown, the two ends of the two rotating shafts 32 are fixedly connected to the threaded rods 25, and the two sets of limit blocks 23 are each provided with a threaded groove 27 that matches the shape of the threaded rods 25 at one end close to each other. The rotation of the rotating shafts 32 can rotate the threaded rods 25, and the cooperation between the threaded rods 25 and the threaded grooves 27 can move the limit blocks 23 toward the inside of the expansion slots 28, leaving the range of the limit slots 20, thereby releasing the limit on the fixed cylinder 2.

[0044] like Figure 1 、 Figure 2 As shown, a fixed tube 5 is fixedly connected to the outside of the first circular hole 11 at the bottom end of the mounting plate 1. A diverter plate 4 is fixedly connected to one side of the outer wall of the fixed tube 5. Multiple water inlets are provided on the other side of the outer wall of the fixed tube 5. The diverter plate 4 diverts the liquid to prevent the flow of liquid from affecting the measurement results. The water inlets on the back allow water to slowly enter the interior of the fixed tube 5 and measure the height of the water flow.

[0045] like Figure 3-Figure 4 、 Figure 13 As shown, the position limiting protection mechanism includes a protective ring 9 fixedly connected to the probe 10. The protective ring 9 has an annular cavity 40 disposed therein. The outer wall of the annular cavity 40 is perforated with multiple second circular holes 41. The inner walls of each of the multiple second circular holes 41 are slidably connected to a fixing post 42. The protective ring 9 protects the probe 10, preventing damage to the probe 10 during placement, thereby extending its service life. The annular cavity 40 connects the multiple second circular holes 41, facilitating subsequent synchronous operation.

[0046] like Figure 10 、 Figure 12 As shown, the top of the protective ring 9 is fixedly connected to a first conduit 16, which is fixedly connected to the base plate 7. A telescopic tube is slidably connected to the inner wall of the first conduit 16, and a retaining ring is fixedly connected to the top of the telescopic tube. An elastic member is fixedly connected between the telescopic tube and the base plate 7. The top of the annular airbag 33 is fixedly connected to a second conduit 37, which passes through the connecting column 6. The bottom of the second conduit 37 has an annular retaining groove that is compatible with the retaining ring. The elastic member can keep the telescopic tube in an extended state. When assembly is required, the first conduit 16 can be clamped to the telescopic tube. Therefore, when the annular airbag 33 is pressed, the gas in the annular airbag 33 can enter the annular cavity 40, thereby pushing the fixed column 42 to move and contact the fixed tube 5, completing the limiting operation. The fixed column 42 also contacts the position of the fixed tube 5 without the water inlet.

[0047] Working principle: First, install the mounting plate 1 in a suitable position, then place the protective ring 9 and the probe 10 into the fixed tube 5 through the first circular hole 11. During the placement process, the probe 10 is protected by the fixing column 42 and the protective ring 9 to prevent the probe 10 from colliding with the fixed tube 5 and causing damage. This protects the probe 10 and extends its service life. During the placement process, the positioning sealing ring 15 is placed into the positioning sealing groove 17 to prevent moisture from entering the cavity between the mounting plate 1 and the fixed tube 2.

[0048] Furthermore, the positioning groove 21 and the positioning plate 18 are aligned. Since the widths of the positioning plate 18 are different, precise positioning and assembly can be performed. During the assembly process, the magnetic column is inserted into the square hole 31, so that the closing plate 24 is in an open state, and the limit block 23 is received in the telescopic groove 28. The second guide tube 37 and the telescopic tube are first clamped together, and then the positioning plate 18 is inserted into the positioning groove 21 and the column 19 is inserted into the square groove 22. During the assembly process, the extrusion ring 13 is inserted into the annular groove 36 and squeezes the annular airbag 33. During the deformation process, the gas inside the annular airbag 33 is discharged. The gas enters the annular cavity 40 through the cooperation of the second conduit 37, the telescopic tube, and the first conduit 16, thereby squeezing the fixed column 42 and causing the fixed column 42 to contact the inner wall of the fixed tube 5 without the water inlet, thereby limiting and fixing the protective ring 9 and the probe 10 to ensure stability, thereby avoiding affecting the measurement results. In the squeezing process, the squeezing ring 13 squeezes the telescopic column 35 to move it outward. When the connecting column 6 contacts the bottom plate 7, the elastic action of the spring 34 causes the slider 38 to perform a reset movement, thereby inserting the telescopic column 35 into the square slot 14 to complete the limiting of the connecting column 6.

[0049] Furthermore, at the same time, when the magnetic column is pulled out, the elastic reset action of the coil spring 26 causes the rotating shaft 32 to perform a reset movement, thereby causing the threaded rod 25 to rotate, and with the thread cooperation of the thread groove 27, the limit block 23 moves outward and is stuck in the limit groove 20, thereby completing the limiting operation. Therefore, less time is spent on installation, thereby improving installation efficiency.

[0050] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof immersion pressure level gauge, comprising a mounting plate (1) and a fixing cylinder (2), characterized in that: A first circular hole (11) is provided in the middle of the top of the mounting plate (1), a bottom plate (7) is provided on the outer side of the top of the mounting plate (1) corresponding to the first circular hole (11), a connecting column (6) is fixedly connected to the inner wall of the fixing cylinder (2), the top of the connecting column (6) is fixedly connected to the liquid level meter body (3), a sealing assembly mechanism is provided between the connecting column (6) and the bottom plate (7), a quick installation mechanism is provided between the mounting plate (1) and the fixing cylinder (2), a cable (8) is fixedly passed through the middle of the bottom end of the bottom plate (7), the bottom end of the cable (8) is fixedly connected to the probe (10), and a limit protection mechanism is provided on the outer wall of the probe (10); The sealing assembly mechanism includes an extrusion ring (13) fixedly connected to the top of the base plate (7), and an annular groove (36) provided at the bottom of the connecting column (6). An annular airbag (33) is fixedly connected to the top of the annular groove (36). The extrusion ring (13) is inserted into the annular groove (36) and presses the annular airbag (33) to deform the annular groove (36) and to closely contact the inner wall of the annular groove (36) to prevent moisture from penetrating. The quick installation mechanism includes square grooves (22) symmetrically provided on both sides of the inner wall of the fixed cylinder (2), two groups of the square grooves (22) are connected to each other at one end close to each other with a telescopic groove (28), and the inner walls of the two groups of the telescopic grooves (28) are provided with a limit block (23) that moves back and forth. It also includes columns (19) fixedly connected to the top of the mounting plate (1) symmetrically on both sides, and the tops of the two groups of the columns (19) are provided with a limit groove (20) at one end close to each other, and the limit block (23) moves and is stuck in the limit groove (20) to complete the quick installation of the fixed cylinder (2); The sealing assembly mechanism includes a positioning plate (18) fixedly connected to the top of the bottom plate (7) and symmetrically distributed, and a positioning groove (21) opened and symmetrically distributed on the outer wall of the connecting column (6), the two positioning grooves (21) and the two positioning plates (18) are respectively matched in shape, and the two positioning plates (18) have different widths; The sealing assembly mechanism also includes telescopic holes passing through the outer wall of the connecting column (6), the tops of the two telescopic holes are connected to the slide groove (39), the inner walls of the two slide grooves (39) are provided with sliders (38), the two groups of sliders (38) and the slide grooves (39) are fixedly connected with springs (34), the bottom ends of the two sliders (38) are fixedly connected to the telescopic column (35) and are arranged in the telescopic hole, the ends of the two telescopic columns (35) away from each other are fixedly embedded with magnets (12), the outer wall of the extrusion ring (13) is provided with square card grooves (14) on both sides, and the two telescopic columns (35) are respectively clamped in the two square card grooves (14); The quick installation mechanism also includes square holes (31) provided on both sides of the fixing cylinder (2), two of the square holes (31) are connected to a placement groove (30) at one end close to each other, and both ends of the two placement grooves (30) are connected to a circular groove (29), and a rotating shaft (32) is rotatably passed through the two groups of the circular grooves (29), and a coil spring (26) is fixedly connected between the two rotating shafts (32) and the two groups of the circular grooves (29), and a closing plate (24) is fixedly connected between the outer walls of the two rotating shafts (32) and the corresponding coil springs (26); The position limiting protection mechanism comprises a protection ring (9) fixedly connected to the probe (10), an annular cavity (40) is provided inside the protection ring (9), a plurality of second circular holes (41) are penetrated through the outer wall of the annular cavity (40), and the inner walls of the plurality of second circular holes (41) are all slidably connected to fixed columns (42).

2. The waterproof submersible pressure level gauge according to claim 1, characterized in that: The sealing assembly mechanism further includes a positioning sealing ring (15) fixedly connected to the bottom end of the base plate (7), and a positioning sealing groove (17) provided on the top end of the mounting plate (1) and corresponding to the outside of the first circular hole (11), wherein the positioning sealing groove (17) and the positioning sealing ring (15) are adapted in shape.

3. The waterproof submersible pressure level gauge according to claim 1, characterized in that: Both ends of the two rotating shafts (32) are fixedly connected to threaded rods (25), and the two sets of limit blocks (23) are each provided with a threaded groove (27) that matches the shape of the threaded rod (25) at one end close to each other.

4. The waterproof submersible pressure level gauge according to claim 1, characterized in that: A fixed pipe (5) is fixedly connected to the outside of the first circular hole (11) at the bottom end of the mounting plate (1), a diverter plate (4) is fixedly connected to one side of the outer wall of the fixed pipe (5), and a plurality of water inlets are penetrated through the other side of the outer wall of the fixed pipe (5).

5. The waterproof submersible pressure level gauge according to claim 1, characterized in that: The top of the protective ring (9) is fixedly connected to a first conduit (16), the first conduit (16) is fixedly connected to the bottom plate (7), the inner wall of the first conduit (16) is slidably connected to a telescopic tube, the top of the telescopic tube is fixedly connected to a clamping ring, an elastic member is fixedly connected between the telescopic tube and the bottom plate (7), the top of the annular airbag (33) is fixedly connected to a second conduit (37) and passes through the connecting column (6), and the bottom end of the second conduit (37) is provided with an annular clamping groove adapted to the clamping ring.

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