Waterproof throw-in type pressure liquid level meter

Abstract

The invention relates to the technical field of liquid level meters, in particular to a waterproof throw-in type pressure liquid level meter which comprises a mounting plate and a fixing cylinder, a first circular hole is formed in the middle of the top end of the mounting plate in a penetrating mode, a bottom plate is arranged on the outer side, corresponding to the first circular hole, of the top end of the mounting plate, and a connecting column is fixedly connected to the inner wall of the fixing cylinder. A liquid level meter body is fixedly connected to the top end of the connecting column, a sealing assembly mechanism is arranged between the connecting column and the bottom plate, a rapid installation mechanism is arranged between the installation plate and the fixing cylinder, a cable fixedly penetrates through the middle of the bottom end of the bottom plate, a probe is fixedly connected to the bottom end of the cable, and a limiting protection mechanism is arranged on the outer wall of the probe. According to the liquid level meter, water is prevented from permeating into the liquid level meter body from the connecting position in the using process, the situation that internal circuit elements are short-circuited is avoided, the situation that the circuit elements are damaged is prevented, and the measuring function of the liquid level meter is prevented from being affected.

Description

Technical Field

[0001] The invention relates to the technical field of liquid level gauges, and 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 on the performance indicators of liquid level meters. This closed immersion 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 the overall measurement cost and maintenance cost.

[0003] At present, in the prior art, professional tools are not used when installing connectors of cables and immersion liquid level meters, which may 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 immersion liquid level meter 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 meter, 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] In order to achieve the above purpose, the technical solution adopted by the present invention is: a waterproof immersion pressure level gauge, including a mounting plate and a fixing cylinder, a first circular hole is penetrated in the middle of the top of the mounting plate, a bottom plate is arranged on the outer side of the top of the mounting plate corresponding to the first circular hole, a connecting column is fixedly connected to the inner wall of the fixing cylinder, a liquid level gauge body is fixedly connected to the top of the connecting column, a sealing assembly mechanism is arranged between the connecting column and the bottom plate, a quick installation mechanism is arranged between the mounting plate and the fixing cylinder, a cable is fixedly penetrated in the middle of the bottom end of the bottom plate, a probe is fixedly connected to the bottom end of the cable, and a limited position protection mechanism is arranged on the outer wall of the probe;

[0006] The sealing assembly mechanism includes an extrusion ring fixedly connected to the top of the bottom plate, and an annular groove opened 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 closely contact 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 with telescopic grooves at one end close to each other, 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 tops of the two groups of columns close to one end are provided with limit grooves, and the limit blocks move and are stuck in the limit grooves 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 penetrated on both sides of the outer wall of the connecting column, the tops of the two telescopic holes are connected with 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 with telescopic columns and are arranged in the telescopic holes, the two telescopic columns are fixedly embedded with magnets at one end away from each other, square slots are opened 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 also includes a positioning sealing ring fixedly connected to the bottom end of the base plate, and a positioning sealing groove opened on the outside of the first circular hole corresponding to the top end of the mounting plate, and the positioning sealing groove and the positioning sealing ring are matched in shape.

[0011] Preferably, the quick installation mechanism also includes square holes penetrated on 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 placement grooves are connected to circular grooves at both ends, and two groups of circular grooves are rotatably penetrated by rotating shafts, and coil springs are fixedly connected between the two rotating shafts and the two groups of circular grooves, and closing plates are 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 provided with threaded grooves matching the shape of the threaded rods at one end close to each other.

[0013] Preferably, a fixed pipe is fixedly connected to the outer side of the first circular hole corresponding to 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 comprises a protection ring fixedly connected to the probe, an annular cavity is arranged inside the protection ring, a plurality of second circular holes are pierced through the outer wall of the annular cavity, and a fixing column is slidably connected to the inner walls of the plurality of second circular holes.

[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 a connecting column, and the bottom end of the second conduit is provided with an annular groove that matches the clamping ring.

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

[0017] 1. Through the sealing assembly mechanism, the connection between the cable and the level meter body can be sealed to prevent moisture from penetrating into the inside of the level meter body from the connection during use, avoid short circuits in the internal circuit components, prevent the circuit components from being damaged, and prevent the measurement function of the level meter 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 liquid level meter can be firmly fixed on the installation plate to prevent it from being easily disassembled by others after installation, thereby improving safety.

[0020] 4. The limit protection mechanism is opened during the assembly process through the sealing assembly mechanism, so that the limit operation can be completed while the sealing is completed. Similarly, the fixing 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 It is an overall schematic diagram of a waterproof immersion pressure level gauge of the present invention;

[0022] Figure 2 It is a bottom view from another angle of a waterproof immersion pressure level gauge of the present invention;

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

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

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

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

[0027] Figure 7 It is a further cross-sectional view of a fixing tube 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] Fig. 9 A cross-sectional view of a connection column of a waterproof immersion pressure level gauge of the present invention;

[0030] Fig.10 A waterproof immersion pressure level gauge according to the present invention Fig. 9 Enlarged view of point B in the middle;

[0031] Fig.11 A cross-sectional view of a bottom plate of a waterproof immersion pressure level gauge of the present invention;

[0032] Fig.12 A waterproof immersion pressure level gauge according to the present invention Fig.11 Enlarged view of point C in the middle;

[0033] Fig.13 The present invention is a cross-sectional view of a protective ring of a waterproof immersion pressure level gauge.

[0034] In the figure: 1, mounting plate; 2, fixing cylinder; 3, liquid level meter body; 4, diverter plate; 5, fixing pipe; 6, connecting column; 7, bottom plate; 8, cable; 9, protective ring; 10, probe; 11, first circular hole; 12, magnet; 13, extrusion ring; 14, square card slot; 15, positioning sealing ring; 16, first conduit; 17, positioning sealing groove; 18, positioning plate; 19, column; 20, limit 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. Sliding block; 39. Sliding groove; 40. Annular cavity; 41. Second circular hole; 42. Fixed column. DETAILED DESCRIPTION

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

[0036] like Figure 1-Figure 13 A waterproof immersion pressure level gauge is shown, comprising a mounting plate 1 and a fixing tube 2, a first circular hole 11 is penetrated in the middle of the top of the mounting plate 1, a bottom plate 7 is arranged 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 tube 2, a liquid level gauge body 3 is fixedly connected to the top of the connecting column 6, a sealing assembly mechanism is arranged between the connecting column 6 and the bottom plate 7, a quick installation mechanism is arranged between the mounting plate 1 and the fixing tube 2, a cable 8 is fixedly penetrated in the middle of the bottom end of the bottom plate 7, a probe 10 is fixedly connected to the bottom end of the cable 8, a limited position protection mechanism is arranged on the outer wall of the probe 10, a sealing treatment can be performed by the provided sealing assembly mechanism to prevent external moisture from entering the interior of the liquid level gauge body 3, protect the internal electronic components, and extend the service life, the quick installation mechanism can improve the installation efficiency during installation, and the limited position protection mechanism can 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 bottom plate 7, and an annular groove 36 opened 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 it and closely contact 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 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, and also include columns 19 fixedly connected to the top of the mounting plate 1 symmetrically on both sides, and the tops of the two groups of columns 19 close to each other at one end are provided with limit grooves 20, and the limit blocks 23 move and are stuck in the limit grooves 20 to complete the quick installation of the fixed cylinder 2.

[0039] like Figure 6 , Fig.11 As shown, the sealing assembly mechanism includes a symmetrically distributed positioning plate 18 fixedly connected to the top of the bottom plate 7, and a symmetrically distributed positioning groove 21 opened 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 positioning plates 18 of different widths can be quickly assembled to ensure the precise docking of each structure and facilitate subsequent operations.

[0040] like Figure 6 , Fig.10 As shown, the sealing assembly mechanism also includes telescopic holes penetrated on both sides of the outer wall of the connecting column 6, the tops of the two telescopic holes are connected with slide grooves 39, the inner walls of the two slide grooves 39 are provided with sliders 38, springs 34 are fixedly connected between the two groups of sliders 38 and the slide grooves 39, the bottom ends of the two sliders 38 are fixedly connected with 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, square card grooves 14 are opened on both sides of the outer wall of the extrusion ring 13, and the two telescopic columns 35 are respectively clamped in the two square card grooves 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 a reset operation, and the telescopic column 35 moves in the telescopic hole and limits the telescopic column 35, and the telescopic columns 35 are provided with inclined surfaces at one end close to each other, so that the telescopic columns 35 are conveniently inserted 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 a pulling operation can be performed, so as to facilitate the release of the limiting 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 bottom plate 7, and a positioning sealing groove 17 opened at the top end of the mounting plate 1 corresponding to the outside of the first circular hole 11, and the positioning sealing groove 17 and the positioning sealing ring 15 are matched in shape. The cooperation between the positioning sealing groove 17 and the positioning sealing ring 15 can prevent moisture from penetrating into the fixing tube 2 from 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 penetrating the two sides of the fixed cylinder 2, and the two square holes 31 are connected to the placement groove 30 at one end close to each other, and the two placement grooves 30 are connected to the circular grooves 29 at both ends, and the two groups of circular grooves 29 are rotatably penetrated by the rotating shaft 32, and the two rotating shafts 32 and the two groups of circular grooves 29 are fixedly connected with the coil spring 26, and the outer wall of the two rotating shafts 32 is fixedly connected with the corresponding coil spring 26. The tool that fits with it can be inserted through the square hole 31, and the closing plate 24 can be pushed to flip, and the closing plate 24 can rotate with the rotating shaft 32 when flipping, and the coil spring 26 can make a reset movement with the rotating shaft 32, so that the closing plate 24 is stuck in the placement groove 30.

[0043] like Figure 7 , Figure 8As shown, both ends of the two rotating shafts 32 are fixedly connected with threaded rods 25, and the two sets of limit blocks 23 are provided with threaded grooves 27 matching the shape of the threaded rods 25 at one end close to each other. The rotation of the rotating shaft 32 can lead the threaded rods 25 to rotate, and the threaded rods 25 and the threaded grooves 27 cooperate to make the limit blocks 23 move to the inner side of the telescopic grooves 28, so that they leave the range of the limit grooves 20, thereby releasing the limit on the fixed cylinder 2.

[0044] like Figure 1 , Figure 2 As shown, 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 provided on the other side of the outer wall of the fixed pipe 5. The diverter plate 4 can be used to divert the liquid to avoid the flow of the liquid affecting the measurement result, and the water inlet on the back can be used to allow the water to slowly enter the fixed pipe 5 and measure the height of the water flow.

[0045] like Figure 3-Figure 4 , Fig.13 As shown, the position limiting protection mechanism includes a protection ring 9 fixedly connected to the probe 10, an annular cavity 40 is arranged inside the protection ring 9, a plurality of second circular holes 41 are pierced through the outer wall of the annular cavity 40, and a fixing column 42 is slidably connected to the inner wall of the plurality of second circular holes 41. The protection ring 9 can be used to protect the probe 10 to prevent damage to the probe 10 during placement, thereby extending the service life, and the plurality of second circular holes 41 can be connected through the annular cavity 40 to facilitate subsequent synchronous operation.

[0046] like Fig.10 , Fig.12 As shown, the top of the protective ring 9 is fixedly connected with the first conduit 16, the first conduit 16 is fixedly connected with the bottom plate 7, the inner wall of the first conduit 16 is slidably connected with a telescopic tube, the top of the telescopic tube is fixedly connected with 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 with the second conduit 37 and passes through the connecting column 6, and the bottom of the second conduit 37 is provided with an annular clamping groove adapted to the clamping ring. The elastic member can make the telescopic tube in an extended state, and the first conduit 16 can be stuck on the telescopic tube when assembly is required, so that 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 with the fixed pipe 5, completing the limiting operation, and the fixed column 42 contacts the position of the fixed pipe 5 without the water inlet.

[0047] Working principle: firstly, install the mounting plate 1 at a suitable position, then put the protective ring 9 and the probe 10 into the fixed tube 5 through the first circular hole 11, and during the insertion 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 during the insertion process, thereby protecting the probe 10 and extending its service life, and during the insertion, the positioning sealing ring 15 is placed into the positioning sealing groove 17, thereby preventing 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, accurate 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 stored 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 the annular airbag 33 is squeezed. The gas inside the annular airbag 33 is discharged during the deformation process. The gas enters the annular cavity 40 through the cooperation of the second conduit 37, the telescopic tube and the first conduit 16, so that the fixed column 42 can be squeezed and the fixed column 42 can contact the inner wall position of the fixed tube 5 without the water inlet, so that the protective ring 9 and the probe 10 can be limited and fixed to ensure stability, thereby avoiding affecting the measurement result. 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, so that the telescopic column 35 is inserted into the square card slot 14 to complete the limit 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 threaded groove 27, the limit block 23 moves outward and is stuck in the limit groove 20, thereby completing the limit 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 only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A waterproof immersion pressure level gauge, comprising a mounting plate (1) and a fixing tube (2), characterized in that: A first circular hole (11) is formed in the middle of the top of the mounting plate (1), a bottom plate (7) is formed 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 tube (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 tube (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 a probe (10), and a limit protection mechanism is provided on the outer wall of the probe (10); The sealing assembly mechanism comprises an extrusion ring (13) fixedly connected to the top end of the bottom plate (7), and an annular groove (36) provided at the bottom end of the connecting column (6); an annular airbag (33) is fixedly connected to the top end 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 airbag and closely contact the inner wall of the annular groove (36) to prevent moisture from penetrating; The quick installation mechanism comprises square grooves (22) symmetrically arranged 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), the inner walls of the two groups of the telescopic grooves (28) are provided with limit blocks (23) that can move back and forth, and also comprises columns (19) fixedly connected to the top of the mounting plate (1) symmetrically on both sides, the tops of the two groups of the columns (19) are provided with limit grooves (20), and the limit blocks (23) move and are stuck in the limit grooves (20) to complete the quick installation of the fixed cylinder (2).

2. A waterproof immersion pressure level gauge according to claim 1, characterized in that: The sealing assembly mechanism comprises 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 shapes of the two positioning grooves (21) and the two positioning plates (18) are respectively matched, and the widths of the two positioning plates (18) are different.

3. A waterproof immersion pressure level gauge according to claim 2, characterized in that: The sealing assembly mechanism also includes telescopic holes penetrated on both sides of the outer wall of the connecting column (6), the top ends of the two telescopic holes are connected with a slide groove (39), the inner walls of the two slide grooves (39) are provided with sliders (38), springs (34) are fixedly connected between the two groups of sliders (38) and the slide grooves (39), the bottom ends of the two sliders (38) are fixedly connected with telescopic columns (35) and are arranged in the telescopic holes, the ends of the two telescopic columns (35) away from each other are fixedly inlaid with magnets (12), and the outer wall of the extrusion ring (13) is provided with square grooves (14) on both sides, and the two telescopic columns (35) are respectively clamped in the two square grooves (14).

4. A waterproof immersion pressure level gauge according to claim 3, characterized in that: 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) provided on the top end of the mounting plate (1) and corresponding to the outer side of the first circular hole (11), wherein the positioning sealing groove (17) and the positioning sealing ring (15) are matched in shape.

5. The waterproof immersion pressure level gauge according to claim 1, characterized in that: The quick installation mechanism also includes square holes (31) penetrated 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; both ends of the two placement grooves (30) are connected to circular grooves (29); rotating shafts (32) are rotatably passed through the two groups of circular grooves (29); coil springs (26) are fixedly connected between the two rotating shafts (32) and the two groups of circular grooves (29); and closing plates (24) are fixedly connected between the outer walls of the two rotating shafts (32) corresponding to the coil springs (26).

6. A waterproof immersion pressure level gauge according to claim 5, characterized in that: Both ends of the two rotating shafts (32) are fixedly connected with threaded rods (25), and the two sets of limit blocks (23) are provided with threaded grooves (27) matching the shape of the threaded rods (25) at one end close to each other.

7. A waterproof immersion pressure level gauge according to claim 6, characterized in that: A fixed pipe (5) is fixedly connected to the outside of the first circular hole (11) corresponding to 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 provided on the other side of the outer wall of the fixed pipe (5).

8. The waterproof immersion pressure level gauge according to claim 1, characterized in that: The position limiting protection mechanism comprises a protection ring (9) fixedly connected to the probe (10), an annular cavity (40) is arranged inside the protection ring (9), a plurality of second circular holes (41) are pierced 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).

9. A waterproof immersion pressure level gauge according to claim 8, 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 matched with the clamping ring.

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