Float liquid level alarm device and ship

Abstract

The present invention relates to the field of ship technology, and in particular to a float liquid level alarm device and a ship. The float liquid level alarm device includes a mounting plate and a float liquid level alarm mechanism. The mounting plate is used to be fixed on the outer wall of the ship's bulkhead; the float liquid level alarm mechanism includes a monitoring tube, a wave-breaking tube and a float liquid level alarm. The monitoring tube is a cylindrical structure with two ends open, and the first end of the monitoring tube is fixed on the inner wall of the ship's bulkhead; the wave-breaking tube is a cylindrical structure with one end open, and a through hole connected to the interior of the wave-breaking tube is provided on the tube wall of the wave-breaking tube, and the open end of the wave-breaking tube is coaxially connected to the second end of the monitoring tube; the float liquid level alarm is fixed on the mounting plate, and the float of the float liquid level alarm is located in the monitoring tube. The liquid in the ship's cabin enters the monitoring tube through the through hole on the wave-breaking tube and is laminar flow, which can avoid turbulence in the monitoring tube, ensure that the float of the float liquid level alarm swings up and down without being affected by the liquid turbulence, and ensure that the float liquid level alarm works normally.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a float liquid level alarm device and a ship. Background Art

[0002] The marine float level alarm is a common device used in various liquid tanks or empty compartments on ships. Its purpose is to monitor the liquid level within the tank. When the liquid level in the tank drops to a certain height, the device's float drops due to the loss of buoyancy, generating a low-level alarm signal that is output to the ship's monitoring system. When the liquid level in the tank rises to a certain height, the device's float rises due to buoyancy, and the low-level alarm signal disappears. Due to the limited space and structural form within the tank, the float level alarm device is inevitably too close to the suction or injection pipe in the tank. As a result, when the suction or injection pipe is in operation, the liquid near the suction or injection pipe forms turbulence, causing the device's float to be easily disturbed and frequently swing up and down, making it unable to operate normally and the device to issue inaccurate alarm signals.

[0003] Therefore, a float liquid level alarm device is urgently needed to solve the above problems. Summary of the Invention

[0004] One object of the present invention is to provide a float liquid level alarm device which is not affected by waves on the liquid surface in the cabin and has reliable monitoring results.

[0005] Another object of the present invention is to provide a ship, by applying the above-mentioned float liquid level alarm device, the liquid level monitoring in the ship's cabin is accurate and reliable.

[0006] To achieve the above objectives, the following technical solutions are provided:

[0007] In a first aspect, a float liquid level alarm device is provided, comprising a mounting plate and a float liquid level alarm mechanism, wherein the mounting plate is fixed to the outer wall of a ship's bulkhead; the float liquid level alarm mechanism comprises:

[0008] The monitoring tube is a cylindrical structure with two ends open, and the first end of the monitoring tube is fixed to the inner wall of the ship's bulkhead;

[0009] The wave-proof tube is a cylindrical structure with one end open, and a through hole communicating with the interior of the wave-proof tube is provided on the tube wall of the wave-proof tube, and the open end of the wave-proof tube is coaxially connected to the second end of the monitoring tube;

[0010] A float liquid level alarm is fixed on the mounting plate, and a float of the float liquid level alarm is located in the monitoring tube.

[0011] As an optional solution of the float liquid level alarm device, the wave-proof cylinder can be slidably arranged in the monitoring cylinder.

[0012] As an optional solution of the float liquid level alarm device, the float liquid level alarm mechanism also includes a guide assembly, which includes a sliding guide ear plate and a guide rod, and the guide rod extends along the axial direction of the monitoring tube. One of the guide ear plate and the guide rod is fixed to the monitoring tube, and the other is fixed to the wave-breaking tube.

[0013] As an optional solution for the float liquid level alarm device, the float liquid level alarm device also includes a watertight operating mechanism, the watertight operating mechanism includes a joystick, one end of the joystick extends into the ship bulkhead and is fixedly connected to the wave-breaking tube, the joystick can move along the axial direction of the monitoring tube to drive the wave-breaking tube to move into the monitoring tube, and make the outer wall of the monitoring tube block the through hole on the wave-breaking tube.

[0014] As an optional solution of the float liquid level alarm device, the length of the wave-breaking tube is not greater than the length of the monitoring tube, and the bottom diameter of the wave-breaking tube is not less than the outer diameter of the monitoring tube.

[0015] As an optional solution of the float liquid level alarm device, a sealing gasket is provided at the second end of the monitoring tube.

[0016] As an optional solution for the float liquid level alarm device, a first groove is provided on the end face of the second end of the monitoring tube, and a second groove and a protrusion are provided on the sealing gasket. The second groove covers the outer groove wall of the first groove, and the protrusion is embedded in the first groove.

[0017] As an optional solution of the float liquid level alarm device, the watertight operating mechanism further includes a support bracket, the support bracket is fixed to the mounting plate, and the operating rod is threadedly connected to the support bracket.

[0018] As an optional solution of the float liquid level alarm device, the watertight operating mechanism further includes a handwheel, and the handwheel is fixed on the operating rod.

[0019] As an optional solution of the float liquid level alarm device, the watertight operating mechanism also includes a watertight component. The mounting plate is provided with a stepped hole for the operating rod to pass through. The watertight component is sleeved on the operating rod and arranged in the stepped hole.

[0020] As an optional solution for the float liquid level alarm device, the watertight assembly includes a watertight part and a watertight cover. The watertight part is tightly mounted on the operating rod, and the watertight cover is tightly fitted with the stepped hole. One end of the watertight part abuts the step surface of the stepped hole, and the other end abuts the watertight cover.

[0021] As an optional solution for the float liquid level alarm device, the watertight operating mechanism also includes an identification component, which includes a flag rod and an indicator. The flag rod is fixed and has an identification groove extending along the moving direction of the operating rod. The indicator is fixed on the operating rod and can extend into the identification groove.

[0022] As an optional solution of the float liquid level alarm device, a discharge hole is provided on the ship bulkhead, and the float liquid level alarm mechanism further includes a discharge component connected to the discharge hole, and the discharge component is used to discharge the water in the monitoring cylinder.

[0023] As an optional solution of the float liquid level alarm device, the discharge assembly includes a discharge channel and a sealing member. The discharge channel is provided on the mounting plate and its inlet end is connected to the discharge through hole. The sealing member is detachably sealed at the outlet end of the discharge channel.

[0024] As an optional solution of the float liquid level alarm device, the discharge assembly also includes a discharge elbow, one end of which passes through the discharge through hole and is fixedly connected to the discharge channel, and the other end is located in the monitoring tube with the opening facing downward.

[0025] As an optional solution for the float liquid level alarm device, the monitoring tube is provided with a first connecting ear plate, the first connecting ear plate is provided with a first connecting hole for the joystick to pass through, the joystick is provided with a first fastener, and the first fastener is located on the side of the first connecting ear plate close to the ship bulkhead.

[0026] As an optional solution for the float liquid level alarm device, a second connecting ear plate is provided on the wave-breaking cylinder, a second connecting hole is provided on the second connecting ear plate for the joystick to pass through, and two second fasteners are provided on the joystick, and the two second fasteners are respectively located on both sides of the second connecting ear plate.

[0027] In a second aspect, a ship is provided, comprising the float liquid level alarm device as described above.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The float liquid level alarm device provided by the present invention includes a mounting plate and a float liquid level alarm mechanism. The mounting plate is used to be fixed on the outer wall of the ship's bulkhead; the float liquid level alarm mechanism includes a monitoring tube, a wave-breaking tube and a float liquid level alarm. By arranging a wave-breaking tube coaxially connected to the monitoring tube on the monitoring tube, the liquid in the ship's cabin enters the monitoring tube through the through hole on the wave-breaking tube in laminar flow, which can avoid turbulence in the monitoring tube and ensure that the float of the float liquid level alarm is not affected by the liquid turbulence and swings up and down, thereby ensuring that the float liquid level alarm operates normally and the monitoring information is reliable.

[0030] The ship provided by the present invention uses the above-mentioned float liquid level alarm device, so that the liquid level in the ship cabin can be monitored accurately and reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0032] Figure 1 A schematic cross-sectional view of the float liquid level alarm device in an open state provided by an embodiment of the present invention;

[0033] Figure 2 A schematic structural diagram of a float liquid level alarm device in a closed state provided by an embodiment of the present invention;

[0034] Figure 3 A schematic structural diagram of a wave-breaking tube in the first direction provided by an embodiment of the present invention;

[0035] Figure 4 A schematic diagram of the structure of the wave-breaking tube provided in the second direction according to an embodiment of the present invention;

[0036] Figure 5 A schematic diagram of the structure of the monitoring tube in the first direction provided by an embodiment of the present invention;

[0037] Figure 6 A schematic structural diagram of the third direction of the wave-breaking tube provided by an embodiment of the present invention;

[0038] Figure 7 A schematic structural diagram of a ship bulkhead provided by an embodiment of the present invention;

[0039] Figure 8 A schematic structural diagram of a mounting plate provided in an embodiment of the present invention;

[0040] Figure 9 A schematic cross-sectional view of a mounting plate provided in an embodiment of the present invention;

[0041] Figure 10 for Figure 1 Enlarged view of point A in the middle;

[0042] Figure 11 A schematic diagram of the structure of the monitoring tube in the second direction provided by an embodiment of the present invention;

[0043] Figure 12 for Figure 11 Enlarged view of point B in the middle;

[0044] Figure 13 A schematic cross-sectional view of a sealing gasket provided in an embodiment of the present invention;

[0045] Figure 14 A schematic structural diagram of a watertight control mechanism provided in an embodiment of the present invention.

[0046] Reference numerals:

[0047] 100 - ship bulkhead; 101 - joystick opening; 102 - float level alarm opening; 103 - first air hole;

[0048] 1-mounting plate; 11-drainage channel; 12-second air hole; 13-step hole;

[0049] 2 - Float level alarm mechanism; 21 - Monitoring tube; 211 - Guide lug; 212 - First connecting lug; 213 - First groove; 22 - Wave-proof tube; 221 - Guide rod; 222 - Second connecting lug; 223 - Through hole; 2231 - First water hole; 2232 - Second water hole; 2233 - Air hole; 23 - Float level alarm; 231 - Float; 24 - Sealing gasket; 241 - Second groove; 242 - Protrusion; 25 - Blocking piece; 26 - Discharge elbow;

[0050] 3-watertight operating mechanism; 31-control lever; 311-first fastener; 312-second fastener; 32-support bracket; 321-mounting part; 322-support part; 33-handwheel; 34-watertight part; 35-watertight cover; 36-benchmark; 361-marking groove; 37-indicator. DETAILED DESCRIPTION

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0052] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0053] like Figure 1-Figure 2 As shown, this embodiment provides a float liquid level alarm device, including a mounting plate 1 and a float liquid level alarm mechanism 2, the mounting plate 1 is used to be fixed on the outer wall of the ship's bulkhead 100; the float liquid level alarm mechanism 2 includes a monitoring tube 21, a wave-breaking tube 22 and a float liquid level alarm 23, the monitoring tube 21 is a cylindrical structure with openings at both ends, and the first end of the monitoring tube 21 is fixed to the inner wall of the ship's bulkhead 100; the wave-breaking tube 22 is a cylindrical structure with an opening at one end, and a through hole 223 connected to the interior of the wave-breaking tube 22 is provided on the tube wall of the wave-breaking tube 22, and the open end of the wave-breaking tube 22 is coaxially connected to the second end of the monitoring tube 21; the float liquid level alarm 23 is fixed on the mounting plate 1, and the float 231 of the float liquid level alarm 23 is located in the monitoring tube 21.

[0054] The float liquid level alarm mechanism 2 is provided with a wave-breaking tube 22 coaxially connected to the monitoring tube 21 on the monitoring tube 21. After the liquid in the ship's cabin passes through the through hole 223 on the wave-breaking tube 22 and enters the monitoring tube 21, it is laminar flow, which can avoid turbulence in the monitoring tube 21 and ensure that the float 231 of the float liquid level alarm 23 is not affected by the liquid turbulence and swings up and down, ensuring that the float liquid level alarm 23 works normally and the monitoring information is reliable.

[0055] Optionally, the monitoring tube 21 may be made of 316L stainless steel, and the monitoring tube 21 is welded to the ship bulkhead 100 by internal and external fillet welding, with the weld leg height not less than 5 mm and the weld circumference.

[0056] Optionally, the wave-breaking tube 22 may be made of 316L stainless steel.

[0057] Alternatively, as Figure 3-Figure 4 As shown, a plurality of through holes 223 are provided in the wave-proof tube 22 to ensure that the liquid in the cabin can smoothly enter the monitoring tube 21 .

[0058] Optionally, the wave-proof tube 22 can be slidably disposed in the monitoring tube 21. This design facilitates adjustment of the matching area between the wave-proof tube 22 and the monitoring tube 21, and adjustment of the exposed number of the through holes 223 on the wave-proof tube 22.

[0059] Illustratively, the plurality of through holes 223 include a first water-permeable hole 2231, a second water-permeable hole 2232, and an air-permeable hole 2233. The plurality of first water-permeable holes 2231 are arranged in a matrix on the wall of the wave-breaking cylinder 22. There is one second water-permeable hole 2232, located at the bottom of the cylinder wall near the bottom of the wave-breaking cylinder 22. There is one air-permeable hole 2233, located at the top of the cylinder wall near the bottom of the wave-breaking cylinder 22.

[0060] like Figure 5-Figure 6 As shown, in order to make the wave-proof tube 22 move stably along the axial direction of the monitoring tube 21, the float liquid level alarm mechanism 2 also includes a guide assembly, which includes a sliding guide ear plate 211 and a guide rod 221. The guide rod 221 extends along the axial direction of the monitoring tube 21. One of the guide ear plate 211 and the guide rod 221 is fixed on the monitoring tube 21, and the other is fixed on the wave-proof tube 22.

[0061] Preferably, there are two guide assemblies, which are symmetrically arranged on both sides of the wall of the monitoring tube 21 and close to the lower position of the wall of the monitoring tube 21.

[0062] For example, the guide lugs 211 are fixed to the monitoring tube 21, and the guide rods 221 are fixed to the wave-breaking tube 22. The guide rods 221 and the guide lugs 211 slide together to allow the wave-breaking tube 22 to stably move along the axial direction of the monitoring tube 21. In other embodiments, the guide lugs 211 may be fixed to the wave-breaking tube 22, and the guide rods 221 may be fixed to the monitoring tube 21, which can also achieve the above-mentioned effect.

[0063] In this embodiment, one end of the guide ear plate 211 is fixed to the monitoring tube 21, and the other end is provided with a sliding through hole. The guide rod 221 is fixed to the wave-proof tube 22 through a connector. One end of the guide rod 221 is fixed to the wave-proof tube 22, and the other end is provided with a nut to limit the maximum opening of the wave-proof tube 22.

[0064] When the float liquid level alarm 23 fails and needs to be removed from the cabin for repair or replacement, due to the design and fixed installation type of the float liquid level alarm 23, once installed, the liquid in the cabin must be drained before the failed float liquid level alarm 23 can be removed.

[0065] In order to facilitate the disassembly or maintenance of the float liquid level alarm 23, as Figure 1-Figure 2As shown, the float liquid level alarm device also includes a watertight operating mechanism 3, which includes a joystick 31. One end of the joystick 31 extends into the ship's bulkhead 100 and is fixedly connected to the wave-breaking tube 22. The joystick 31 can move axially along the monitoring tube 21 to drive the wave-breaking tube 22 to move into the monitoring tube 21, and cause the outer wall of the monitoring tube 21 to block the through hole 223 on the wave-breaking tube 22. This design allows the monitoring tube 21 to be partially watertight when the float liquid level alarm 23 needs to be removed or repaired by pulling the wave-breaking tube 22 into the monitoring tube 21, thereby preventing a large amount of liquid in the cabin from flowing out of the float liquid level alarm installation hole.

[0066] like Figure 5 Combine Figure 1 As shown, to maintain the stability of the monitoring tube 21's installation, the monitoring tube 21 is provided with a first connecting lug 212. This first connecting lug 212 defines a first connecting hole for the joystick 31 to pass through. The joystick 31 is also provided with a first fastener 311, located on the side of the first connecting lug 212 near the ship's bulkhead 100. This design allows the first connecting lug 212 on the monitoring tube 21 to be sleeved onto the joystick 31, supporting the monitoring tube 21 via the joystick 31. Furthermore, the diameter d2 of the first connecting hole is greater than the diameter D of the joystick 31. For example, d2 = D + 2 mm.

[0067] Preferably, the joystick 31 is located above the monitoring tube 21, and the monitoring tube 21 is hoisted on the joystick 31 through the first connecting ear plate 212. Furthermore, the first connecting ear plate 212 is located at the top of the monitoring tube 21 and at the middle rear position of the monitoring tube 21 in the length direction of the tube wall.

[0068] Exemplarily, the two guide lugs 211 and the first connecting lug 212 are arranged at an interval of 120°.

[0069] like Figure 6 Combine Figure 1 As shown, in order to fix the wave-proof tube 22 and the operating rod 31, a second connecting ear plate 222 is provided on the wave-proof tube 22, and a second connecting ear plate 222 is provided on the second connecting ear plate 222 for the operating rod 31 to pass through. The operating rod 31 is provided with two second fasteners 312, and the two second fasteners 312 are respectively located on both sides of the second connecting ear plate 222. This design allows the second connecting ear plate 222 to move with the operating rod 31 through the two second fasteners 312 when the operating rod 31 is screwed. Furthermore, the diameter d3 of the second connecting hole is greater than the diameter D of the operating rod 31. For example, d3 = D + 2 mm.

[0070] Exemplarily, the connecting parts of the two guide rods 221 are arranged at an interval of 120° from a second connecting ear plate 222. Preferably, the first fastener 311 is fixed to the joystick 31 by means of a latch. Similarly, the second fastener 312 is also fixed to the joystick 31 by means of a latch. Specifically, a latch hole 313 is provided on the joystick 31, and the first fastener 311 and the second fastener 312 are both nuts. The latch passes through the nut and is fixed to a specific position of the joystick 31 to ensure that when the joystick 31 rotates, the wave-breaking tube 22 can move along its axial direction into the monitoring tube 21. The first fastener 311 limits the maximum axial opening of the wave-breaking tube 22 to prevent the wave-breaking tube 22 from opening too large and falling off from the monitoring tube 21.

[0071] In addition, the first connecting ear plate 212 on the monitoring tube 21 and the second connecting ear plate 222 on the wave-breaking tube 22 can serve as a mechanism to support the operating rod 31 and limit the operation rod 31 to move only in the axial direction. The guide ear plate 211 of the monitoring tube 21 and the wave-breaking tube 22 limits the guide rod 221 to move only in the axial direction. The second connecting ear plate 222 and the guide ear plate 211 act simultaneously to enable the wave-breaking tube 22 to move only in the axial direction.

[0072] In order to facilitate the discharge of liquid in the monitoring tube 21 , a discharge hole is provided on the ship bulkhead 100 , and the float liquid level alarm mechanism 2 further includes a discharge component connected to the discharge hole, which is used to discharge the water in the monitoring tube 21 .

[0073] In addition, if Figure 7-Figure 9 As shown, a first air hole 103 is also provided on the bulkhead 100 of the ship, and a second air hole 12 connected to the first air hole 103 is provided on the mounting plate 1, to ensure that when the wave-breaking tube 22 enters the monitoring tube 21 and is in a closed state, the gas in the monitoring tube 21 can be discharged from the first air hole 103 and the second air hole 12.

[0074] like Figure 8 As shown, the mounting plate 1 is oval-shaped and can be made of steel. It is fillet welded to the vessel's bulkhead 100, with the weld leg height being no less than 5mm and extending around the vessel's circumference. A control lever 31 is located above the mounting plate 1. The float level alarm 23 is bolted to its underside. The monitoring tube 21 is fixed to the inner wall of the vessel's bulkhead 100. Initially, the float 231 of the float level alarm 23 is located at the centerline of the monitoring tube 21.

[0075] Alternatively, as Figure 10As shown, the discharge assembly includes a discharge channel 11 and a blocking member 25. The discharge channel 11 is provided on the mounting plate 1, and its inlet end is connected to the discharge through-hole. The blocking member 25 detachably blocks the outlet end of the discharge channel 11. When the float liquid level alarm 23 needs to be replaced or repaired, the blocking member 25 can be removed. Then, the operating lever 31 is moved to allow the wave-proof tube 22 to enter the monitoring tube 21, allowing the liquid in the monitoring tube 21 to be discharged from the discharge channel 11. The cooperation between the wave-proof tube 22 and the monitoring tube 21 ensures that the monitoring tube 21 is watertight.

[0076] Exemplarily, the blocking member 25 is threadedly connected to the outlet end of the discharge channel 11. Alternatively, the blocking member 25 may be a blocking bolt, and the outlet end of the discharge channel 11 is provided with an internal thread, and the blocking member 25 is threadedly connected to the outlet end of the discharge channel 11.

[0077] Preferably, the discharge assembly also includes a discharge elbow 26. One end of the discharge elbow 26 passes through the discharge hole and is fixedly connected to the discharge channel 11. The other end of the discharge elbow 26 is located within the monitoring tube 21 with its opening facing downward. This design allows the liquid in the monitoring tube 21 to drop below the opening at the other end of the discharge elbow 26. Furthermore, it prevents the discharge hole in the ship's bulkhead 100 from directly contacting the liquid inside the cabin, which could corrode the ship's bulkhead 100 or leak from the connection between the bulkhead 100 and the mounting plate 1.

[0078] Exemplarily, the discharge elbow 26 is an L-shaped tube, one end of which is threadedly connected to the inlet end of the discharge channel 11, and the other end of which is opened downward.

[0079] The discharge channel 11 is provided below the float liquid level alarm 23 , and the blocking member 25 is detachably connected to the outlet end of the discharge channel 11 .

[0080] To achieve partial watertightness of the monitoring tube 21, the length of the wave-proof tube 22 is no longer than that of the monitoring tube 21, and the bottom diameter of the wave-proof tube 22 is no less than the outer diameter of the monitoring tube 21. This design allows the wave-proof tube 22 to fully enter the monitoring tube 21, and the bottom of the wave-proof tube 22 abuts against the end of the monitoring tube 21, ensuring a seal between the two.

[0081] Preferably, a sealing gasket 24 is provided at the second end of the monitoring tube 21. This design ensures that when the bottom of the wave-proof tube 22 abuts the end of the monitoring tube 21, the watertight performance of the fitting portion between the two meets the requirements.

[0082] Optionally, the sealing gasket 24 may be made of polytetrafluoroethylene rubber, which has good sealing performance, is durable and wear-resistant, and has a long service life.

[0083] In order to facilitate the installation of the sealing gasket 24 while ensuring water tightness, as Figure 11-13As shown, a first groove 213 is provided on the end surface of the second end of the monitoring tube 21, and a second groove 241 and a protrusion 242 are provided on the sealing gasket 24. The second groove 241 covers the outer groove wall of the first groove 213, and the protrusion 242 is embedded in the first groove 213.

[0084] Exemplarily, the bottom diameter of the wave-breaking tube 22 is larger than the diameter of the sealing gasket 24. Exemplarily, the bottom diameter of the wave-breaking tube 22 is 10 mm larger than the diameter of the sealing gasket 24, ensuring that the bottom of the wave-breaking tube 22 can be completely covered on the sealing gasket 24, ensuring the seal between the wave-breaking tube 22 and the monitoring tube 21.

[0085] Preferably, in order to facilitate the adjustment of the movement amount of the joystick 31, as shown in FIG. Figure 14 As shown, the watertight operating mechanism 3 also includes a support bracket 32, which is fixed to the mounting plate 1, and the operating rod 31 is threadedly connected to the support bracket 32. This design allows the displacement of the operating rod 31 to be adjusted by screwing the operating rod 31, thereby facilitating the adjustment of the position of the wave-proof tube 22.

[0086] Optionally, the support bracket 32 includes a mounting portion 321 and a supporting portion 322. The mounting portion 321 is fixed to the mounting plate 1. The supporting portion 322 is provided with a threaded hole. The operating rod 31 is threadedly connected to the supporting portion 322. Exemplarily, the supporting portion 322 is a gantry type.

[0087] For ease of operation, the watertight operating mechanism 3 further comprises a hand wheel 33, which is fixed to the operating rod 31. This design allows the amount of movement of the operating rod 31 to be adjusted by rotating the hand wheel 33.

[0088] Optionally, the watertight operating mechanism 3 further includes a watertight assembly. The mounting plate 1 is provided with a stepped hole 13 for the operating rod 31 to pass through. The watertight assembly is sleeved over the operating rod 31 and disposed within the stepped hole 13. This design utilizes the watertight assembly to achieve a sealed connection between the operating rod 31 and the ship's bulkhead 100, preventing leakage of liquid from the cabin through the connection between the operating rod 31 and the ship's bulkhead 100.

[0089] Preferably, the watertight assembly includes a watertight part 34 and a watertight cover 35. The watertight part 34 is tightly mounted on the operating rod 31, and the watertight cover 35 is tightly fitted with the stepped hole 13. One end of the watertight part 34 abuts against the step surface of the stepped hole 13, and the other end abuts against the watertight cover 35.

[0090] In this embodiment, the stepped hole 13 is provided on the mounting plate 1, and the stepped hole 13 is sealed by a watertight member 34. Specifically, the watertight member 34 is compressed between the watertight cover 35 and the stepped surface of the stepped hole 13, and the expansion and deformation of the watertight member 34 achieves a sealed connection between the control lever 31 and the stepped hole 13.

[0091] Optionally, the watertight cover 35 can be fixed to the stepped hole 13 by fasteners. The watertight cover 35 can be pressed tightly against the stepped hole 13, squeezing the watertight member 34 to cause radial expansion without axial displacement, thereby sealing the control rod 31. For example, the mounting portion 321 of the support bracket 32 is provided with a through hole having the same diameter as the large aperture of the stepped hole 13. The watertight cover 35 is inserted through the through hole of the mounting portion 321 into the large aperture of the stepped hole 13 of the mounting plate 1, thereby pressing the watertight member 34.

[0092] For example, the joystick 31 , the support bracket 32 , the hand wheel 33 and the watertight cover 35 may all be made of steel.

[0093] Optionally, the watertight member 34 may be filled with aramid fiber to ensure a sealed connection between the operating rod 31 and the stepped hole 13 on the mounting plate 1 to meet watertight requirements.

[0094] In order to facilitate the operator to understand the relative positions of the wave-proof tube 22 and the monitoring tube 21, the watertight operating mechanism 3 also includes an identification component, which can facilitate the operator to determine whether the wave-proof tube 22 is in an open or closed state.

[0095] Optionally, the identification assembly includes a rod 36 and an indicator member 37. The rod 36 is fixed and has an identification slot 361 extending in the direction of movement of the joystick 31. The indicator member 37 is fixed to the joystick 31 and can extend into the identification slot 361. In actual operation, the identification symbols "open" and "close" can be set on the identification slot 361. When the indicator member 37 points to "open", it indicates that the wave-breaking tube 22 is located outside the monitoring tube 21, and the float liquid level alarm 23 can now operate normally. When the indicator member 37 points to "close", it indicates that the wave-breaking tube 22 is inside the monitoring tube 21 and the two are sealed together, and the float liquid level alarm 23 can now be removed or repaired. Of course, other types of identification symbols can also be set on the identification slot 361. In other embodiments, the identification assembly can also be of other types, which will not be illustrated one by one here.

[0096] For example, Figure 7-Figure 9As shown, a control lever opening 101, a float level alarm opening 102, and a first air hole 103 are required on the ship's bulkhead 100. The discharge hole shares the float level alarm opening 102 and does not need to be separately provided. The diameter of the control lever opening 101 is D1, and the diameter of the control lever 31 is D, where D1 = D + 10 mm. The diameter of the first air hole 103 is the same as the diameter of the second air hole 12 on the mounting plate 1. The diameter of the float level alarm opening 102 should be larger than the opening on the mounting plate 1 for mounting the float level alarm 23. Furthermore, the height between the center of the joystick opening 101 and the center of the first air hole 103 is H1, and the height between the center of the joystick opening 101 and the center of the float liquid level alarm opening 102 is H2, where H1 = h1 and H2 = h2. Here, h1 is the height from the center of the stepped hole 13 on the mounting plate 1 to the center of the second air hole 12, and h2 is the height from the center of the stepped hole 13 on the mounting plate 1 to the center of the opening for the float liquid level alarm 23 on the mounting plate 1. This ensures accurate installation of the mounting plate 1 and facilitates accurate installation of the joystick 31 and the float liquid level alarm 23. Furthermore, the small aperture of the stepped hole 13 is d1, d1 = D + 2 mm, ensuring that the joystick 31 does not contact the mounting plate 1 during operation and minimizing contact between the watertight member 34 and the liquid in the cabin.

[0097] The operation process of the float liquid level alarm device provided in this embodiment is as follows:

[0098] Rotate the handwheel 33 clockwise, and the joystick 31 rotates along the internal thread of the support bracket 32 and screws in toward the cabin. The wave-proof tube 22 moves axially away from the monitoring tube 21, and the through-holes 223 are exposed to the cabin. Finally, the indicator 37 is in the "open" position. At this time, the device is in the open state. The through-holes 223 on the wave-proof tube 22 can resolve the turbulence of the liquid in the cabin. The liquid flows into or out of the monitoring tube 21 through the dense through-holes 223, ensuring that the liquid in the monitoring tube 21 is laminar. This prevents the float 231 from being affected by the turbulence of the liquid in the cabin, causing it to swing up and down frequently and output an error signal. The float liquid level alarm 23 is working normally.

[0099] Rotate the hand wheel 33 counterclockwise, the joystick 31 rotates along the internal thread of the support bracket 32 and unscrews outward from the cabin. The wave-proof tube 22 moves axially close to the monitoring tube 21, and the through hole 223 is hidden in the monitoring tube 21. The air hole 2233 and the second water hole 2232 of the wave-proof tube 22 ensure that the wave-proof tube 22 is completely closed (close to the monitoring tube 21). Finally, the indicator 37 is in the "off" position, and the sealing gasket 24 is under pressure and completely sealed. At this time, the device is in a closed state, and the inside of the device is in a tight state. Remove the blocking member 25. The liquid in the cabin is affected by gravity and atmospheric pressure. The remaining liquid in the device will be discharged to the outside of the device through the discharge elbow 26. Finally, according to the siphon principle, the liquid level in the device will drop to the lower end of the discharge elbow 26. The mounting bolts on the float liquid level alarm 23 can be removed, and the float liquid level alarm 23 can be removed, and the liquid in the cabin will not flow out of the cabin.

[0100] In summary, the float liquid level alarm device provided in this embodiment can replace the float liquid level alarm 23 without entering the cabin and without causing the liquid in the cabin to flow out; at the same time, it solves the problem of turbulence caused by uncontrollable liquid in the cabin interfering with the float liquid level alarm 23, and the interference elimination action is completed by providing multiple through holes 223 on the wave-breaking tube 22; an identification component is also provided to realize switch indication; when the wave-breaking tube 22 is in a closed state, an air hole and a discharge channel 11 connected to the monitoring tube 21 are provided to drain the gas and liquid in the monitoring tube 21.

[0101] This embodiment also provides a vessel including the aforementioned float level alarm device. The float level alarm 23 is unaffected by waves on the liquid surface in the tank (wave-proof type) during operation and can be turned off. Furthermore, when dismantled for maintenance or replacement, it can be partially watertight to prevent a large amount of liquid in the tank from flowing out of the mounting hole of the float level alarm 23.

[0102] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A float liquid level alarm device, characterized in that: The invention comprises a mounting plate (1) and a float liquid level alarm mechanism (2), wherein the mounting plate (1) is used to be fixed on the outer wall of a ship bulkhead (100); the float liquid level alarm mechanism (2) comprises: The monitoring tube (21) is a cylindrical structure with two ends open, and the first end of the monitoring tube (21) is fixed to the inner wall of the ship bulkhead (100); The wave-proof tube (22) is a cylindrical structure with one end open, and a through hole (223) communicating with the interior of the wave-proof tube (22) is provided on the tube wall of the wave-proof tube (22), and the open end of the wave-proof tube (22) is coaxially connected to the second end of the monitoring tube (21); A float liquid level alarm (23) is fixed on the mounting plate (1), and a float (231) of the float liquid level alarm (23) is located in the monitoring tube (21); The anti-wave cylinder (22) is slidably arranged in the monitoring cylinder (21); The float liquid level alarm device also includes a watertight operating mechanism (3), the watertight operating mechanism (3) includes an operating rod (31), one end of the operating rod (31) extends into the ship bulkhead (100) and is fixedly connected to the wave-breaking tube (22), and the operating rod (31) can move along the axial direction of the monitoring tube (21) to drive the wave-breaking tube (22) to move into the monitoring tube (21) and enable the outer wall of the monitoring tube (21) to block the through hole (223) on the wave-breaking tube (22).

2. The float liquid level alarm device according to claim 1, characterized in that: The float liquid level alarm mechanism (2) further comprises a guide assembly, wherein the guide assembly comprises a guide ear plate (211) and a guide rod (221) that are slidably fitted, wherein the guide rod (221) extends along the axial direction of the monitoring tube (21), and one of the guide ear plate (211) and the guide rod (221) is fixed to the monitoring tube (21), and the other is fixed to the anti-wave tube (22).

3. The float liquid level alarm device according to claim 1, characterized in that: The length of the wave-proof tube (22) is not greater than the length of the monitoring tube (21), and the bottom diameter of the wave-proof tube (22) is not less than the outer diameter of the monitoring tube (21).

4. The float liquid level alarm device according to claim 3, characterized in that: The second end of the monitoring tube (21) is provided with a sealing gasket (24).

5. The float liquid level alarm device according to claim 4, characterized in that: A first groove (213) is provided on the end surface of the second end of the monitoring tube (21), and a second groove (241) and a protrusion (242) are provided on the sealing gasket (24), wherein the second groove (241) covers the outer groove wall of the first groove (213), and the protrusion (242) is embedded in the first groove (213).

6. The float liquid level alarm device according to claim 1, characterized in that: The watertight operating mechanism (3) further comprises a support bracket (32), wherein the support bracket (32) is fixed on the mounting plate (1), and the operating rod (31) is threadedly connected to the support bracket (32).

7. The float liquid level alarm device according to claim 6, characterized in that: The watertight operating mechanism (3) further comprises a hand wheel (33), and the hand wheel (33) is fixed on the operating rod (31).

8. The float liquid level alarm device according to claim 6, characterized in that: The watertight operating mechanism (3) further comprises a watertight component. The mounting plate (1) is provided with a stepped hole (13) for the operating rod (31) to pass through. The watertight component is sleeved on the operating rod (31) and arranged in the stepped hole (13).

9. The float liquid level alarm device according to claim 8, characterized in that: The watertight assembly comprises a watertight part (34) and a watertight cover (35). The watertight part (34) is tightly sleeved on the operating rod (31). The watertight cover (35) is tightly matched with the stepped hole (13). One end of the watertight part (34) abuts against the step surface of the stepped hole (13), and the other end abuts against the watertight cover (35).

10. The float liquid level alarm device according to claim 1, characterized in that: The watertight operating mechanism (3) further includes an identification component, which includes a marker rod (36) and an indicator member (37). The marker rod (36) is fixedly arranged and provided with an identification groove (361) extending along the moving direction of the operating rod (31). The indicator member (37) is fixed to the operating rod (31) and can extend into the identification groove (361).

11. The float liquid level alarm device according to claim 1, characterized in that: A discharge through hole is provided on the ship bulkhead (100), and the float liquid level alarm mechanism (2) further comprises a discharge component connected to the discharge through hole, and the discharge component is used to discharge water in the monitoring cylinder (21).

12. The float liquid level alarm device according to claim 11, characterized in that: The discharge assembly comprises a discharge channel (11) and a blocking member (25); the discharge channel (11) is provided on the mounting plate (1) and its inlet end is connected to the discharge through hole; the blocking member (25) is detachably blocked at the outlet end of the discharge channel (11).

13. The float liquid level alarm device according to claim 12, characterized in that: The discharge assembly further comprises a discharge elbow (26), one end of which passes through the discharge through hole and is fixedly connected to the discharge channel (11), and the other end of which is located in the monitoring tube (21) and is opened downward.

14. The float liquid level alarm device according to any one of claims 1 to 13, characterized in that: The monitoring tube (21) is provided with a first connecting ear plate (212), the first connecting ear plate (212) is provided with a first connecting hole for the operating rod (31) to pass through, the operating rod (31) is provided with a first fastener (311), and the first fastener (311) is located on a side of the first connecting ear plate (212) close to the ship bulkhead (100).

15. The float liquid level alarm device according to any one of claims 1 to 13, characterized in that: The wave-breaking cylinder (22) is provided with a second connecting ear plate (222), the second connecting ear plate (222) is provided with a second connecting hole for the operating rod (31) to pass through, and the operating rod (31) is provided with two second fasteners (312), and the two second fasteners (312) are respectively located on both sides of the second connecting ear plate (222).

16. A ship, characterized in that: It comprises the float liquid level alarm device as described in any one of claims 1-15.

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