Ship cabin liquid level switch protection device
By designing the connection method between the protective cover body and the fixed panel, the problem of easy damage to the liquid level switch was solved, achieving accurate data transmission and extending the switch life, thus ensuring the safe navigation of the ship.
Patent Information
- Application Number
- CN202520724189.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-03
- Estimated Expiration
- 2035-04-17
AI Technical Summary
The existing ship compartment level switches are exposed, making them susceptible to damage from external forces, which leads to inaccurate data acquisition, reduced service life, and affects the safe navigation of the ship.
Design a protective device for a liquid level switch in a ship's compartment, including a protective cover body and a fixed panel. The liquid level switch is protected by bolts, and the signal line extends from the open structure to ensure that the switch is not damaged and data transmission is not affected.
It effectively protects the liquid level switch, improves the accuracy of data acquisition, extends service life, and ensures the safe navigation of ships.
Smart Images

Figure CN224082388U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shipbuilding technology, and specifically relates to a ship compartment liquid level switch protection device. Background Technology
[0002] Shipboard level switches are monitoring devices installed on ship oil and water tanks. They are commonly used automated control equipment, typically consisting of a float, hook, lever, and contactor. The level switch senses changes in liquid level through a float and magnetic system, outputting corresponding switching or alarm signals to control external equipment. When the level of the detected medium (such as water or oil) rises, the float rises with the medium; when the level falls, the float falls accordingly. By monitoring the position of the float, it is possible to determine whether the liquid level has reached a set value, thus providing accurate information about the liquid levels in the oil and water tanks from the ship's control end, ensuring the ship's endurance and stability.
[0003] Most existing ship compartment level switches are exposed, making it difficult to guarantee that they will not be damaged by external forces. This compromises the accuracy of data collection from the compartments and the safe navigation of the ship, thus reducing the service life of the level switches. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a protective device for a ship's cabin liquid level switch, which can effectively keep the liquid level switch in a semi-closed and protected state, greatly ensuring that the ship's liquid level switch is not easily damaged by external forces, increasing the service life of the liquid level switch, improving the accuracy of various data collection in the cabin, and ensuring the safe navigation of the ship.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A protective device for a liquid level switch in a ship's compartment includes a protective cover body. One side of the protective cover body is an open structure. The bottom end of the protective cover body is connected to a liquid level switch. The upper part of the liquid level switch is located inside the protective cover body. The signal line at the upper end of the liquid level switch extends out through the open structure of the protective cover body.
[0007] Furthermore, the protective cover body includes a bottom fixing panel, which is connected to a liquid level switch, and the upper part of the liquid level switch extends through the fixing panel into the interior of the protective cover body.
[0008] Furthermore, the protective cover body has a fully open structure, and the fixed panel has a notch extending to the opposite side from the side closest to the open structure of the protective cover body. The upper part of the liquid level switch extends into the protective cover through the notch.
[0009] Furthermore, the notch is a semi-circular ear hole, and the center of the semi-circular ear hole is the center point of the side of the fixed panel near the open structure.
[0010] Furthermore, the fixing panel is provided with multiple fixing holes, which are arranged in a semi-circular array around the center of the semi-circular ear hole on the outer periphery of the semi-circular ear hole; the fixing panel is detachably connected to the liquid level switch by bolts passing through the multiple fixing holes.
[0011] Furthermore, the protective cover body also includes a first support panel and a second support plate located on the left and right sides of the fixed panel, a third support panel located between the first support panel and the second support panel and perpendicularly connected to the end of the fixed panel away from the semi-circular ear hole, and a cover plate arranged parallel to the fixed panel at vertical intervals. The side of the cover plate near the fully open structure is located on the outer side of that side of the fixed panel.
[0012] Furthermore, the first support panel and the second support panel have the same structure, both having a right-angled trapezoidal longitudinal section. The long bottom edge of the first support panel and the second support panel are connected to the cover plate, and the short bottom edge is connected to the fixed panel. The length of the long bottom edge is less than the length of the side edge of the fixed panel connected to the short bottom edge.
[0013] Furthermore, the length of the two sides of the cover plate that are connected to the first support panel and the second support panel is greater than the outer diameter of the main body of the liquid level switch, and the height of the third support panel is greater than the height of the liquid level switch.
[0014] This utility model discloses a protective device for a ship's cabin level switch. When the mounting plate at the bottom of the protective device is paired with the level switch to be protected, the level switch body located outside the ship's cabin is fully protected by the protective cover. The signal wire of the level switch can extend from the open end of the protective cover without affecting signal transmission and monitoring, effectively ensuring that the level switch is not easily damaged and guaranteeing the accuracy of the ship's cabin level measurement data. This protective cover is simple to manufacture, easy to install, and inexpensive. It effectively solves the problem of level switch protection and has been implemented on actual ship bows with widespread praise. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the liquid level switch protection device after installation according to this utility model.
[0016] Figure 2 This is a perspective view of the liquid level switch protection device described in this utility model.
[0017] Figure 3 This is a detailed drawing of the ear plate of the liquid level switch protection device described in this utility model.
[0018] Among them, 1-protective cover body, 2-liquid level switch, 3-signal line, 11-fixed panel, 12-first support panel, 13-second support panel, 14-third support panel, 15-cover plate, 111-fixing hole, 112-notch. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] like Figures 1-3 As shown, a protective device for a liquid level switch in a ship's compartment includes a protective cover body 1. One side of the protective cover body 1 is an open structure. The bottom end of the protective cover body 1 is connected to a liquid level switch 2. The upper part of the liquid level switch 2 is located inside the protective cover body 1. The signal line 3 at the upper end of the liquid level switch 2 extends out through the open structure of the protective cover body 1.
[0021] Understandably, by placing the level switch 2 inside the protective cover body 1, the level switch 2 body can be protected from all directions by the protective cover; the signal line 3 of the level switch 2 can extend out from the open end of the protective cover without affecting the signal transmission and monitoring, effectively ensuring that the level switch 2 is not easily damaged, and ensuring the accuracy of the relevant data for measuring the liquid level in the ship's compartments.
[0022] Furthermore, the protective cover body 1 has a fully open structure, and the fixed panel 11 has a notch 112 extending to the opposite side from the side of the protective cover body 1 that is close to the open structure. The upper part of the liquid level switch 2 extends into the protective cover through the notch 112. The notch 112 is a semi-circular ear hole, and the center of the semi-circular ear hole is the center point of the side of the fixed panel 11 that is close to the open structure.
[0023] Understandably, the notch 112 is used to accommodate the level switch 2, facilitating the connection between the protective cover body 1 and the level switch 2.
[0024] In this embodiment, the protective cover body 1 includes a bottom fixing panel 11, on which a plurality of fixing holes 111 are provided. The plurality of fixing holes 111 are arranged in a semi-circular array around the center of the semi-circular ear hole on the outer periphery of the semi-circular ear hole. The fixing panel 11 is detachably connected to the liquid level switch 2 by bolts passing through the plurality of fixing holes 111. The upper part of the liquid level switch 2 passes through the fixing panel 11 and extends into the interior of the protective cover body 1.
[0025] In some embodiments, the lengths A and B of the fixing panel 114 are determined based on the outer diameter of the level switch 2. The diameter D of the fixing hole 111 is adapted to the flange hole diameter of the protected level switch 2.
[0026] Furthermore, the protective cover body 1 also includes a first support panel 12 and a second support plate 13 located on the left and right sides of the fixed panel 11, a third support panel 14 located between the first support panel 12 and the second support panel 13 and vertically connected to the end of the fixed panel 11 away from the semi-circular ear hole, and a cover plate 15 arranged parallel to the fixed panel 11 at vertical intervals. The side of the cover plate 15 near the fully open structure is located on the outer side of the side of the fixed panel 11 on that side.
[0027] Furthermore, the first support panel 12 and the second support panel 13 have the same structure, and their longitudinal sections are both right-angled trapezoids. The long bottom edge of the first support panel 12 and the second support panel 13 is connected to the cover plate 15, and the short bottom edge is connected to the fixed panel 11. The length of the long bottom edge is less than the length of the side of the fixed panel 11 connected to the short bottom edge.
[0028] The long and short ends of the first support panel 12 and the second support panel 13 are selected with appropriate lengths according to the size of the protected liquid level switch 2.
[0029] Furthermore, the length of the two sides of the cover plate 15 that are connected to the first support panel 12 and the second support panel 13 is greater than the outer diameter of the main body of the liquid level switch 2, and the height of the third support panel 14 is greater than the height of the liquid level switch 2.
[0030] The height H of the cover plate 15L and the protective cover body 1 must be greater than the outer diameter of the protected liquid level switch 2 body, so that there is space to perform routine inspection and maintenance on the protected liquid level switch 2 without disassembling the protective cover.
[0031] Those skilled in the art should understand that the above description is merely a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A protection device for a ship's tank level switch, characterized in that, The protective cover body has an open side, and the bottom end of the protective cover body is connected with a liquid level switch, and the upper part of the liquid level switch is located in the protective cover body, and the signal line at the upper end of the liquid level switch extends out of the open structure of the protective cover body.
2. A marine bilge level switch protection device according to claim 1, characterised in that, The protective cover body includes a bottom fixed panel connected with the liquid level switch, and the upper part of the liquid level switch extends into the protective cover body through the fixed panel.
3. A marine bilge level switch protection device according to claim 2, characterised in that, The open structure of the protective cover body is completely open, and the fixed panel has a notch extending from one side close to the open structure of the protective cover body to the opposite side.
4. A ship's tank level switch protection device according to claim 3, characterised in that, The notch is a semicircular ear hole, and the center of the semicircular ear hole is the center point of the side edge of the fixed panel close to the open structure.
5. A ship's tank level switch protection device according to claim 4, characterised in that, A plurality of fixing holes are arranged on the fixed panel, and the plurality of fixing holes are arranged in a semicircular array around the center of the semicircular ear hole; and the fixed panel is detachably connected with the liquid level switch through bolts passing through the plurality of fixing holes.
6. A ship's tank level switch protection device according to claim 5, characterised in that, The protective cover body further includes first and second support panels on the left and right sides of the fixed panel, a third support panel vertically connected to the end of the fixed panel away from the semicircular ear hole between the first and second support panels, and a cover plate arranged in parallel with the fixed panel at an interval therebetween, and the side of the cover plate close to the completely open structure is located outside the side edge of the fixed panel.
7. A ship's tank level switch protection device according to claim 6, characterised in that, The first and second support panels have the same structure and are both in the shape of a right-angled trapezoid in the longitudinal section, and the long bottom edge of the first and second support panels is connected with the cover plate, and the short bottom edge is connected with the fixed panel, and the length of the long bottom edge is less than the length of the side edge of the fixed panel connected with the short bottom edge.
8. A marine bilge level switch protection device according to claim 7, characterised in that, The length of the two side edges of the cover plate connected with the first and second support panels is greater than the outer diameter of the main body of the liquid level switch, and the height of the third support panel is greater than the height of the liquid level switch.