Signal transmitter wiring sealing device
By designing a sealed tank and implementing multiple sealing measures, the problems of exposed cables and sealing failures in ship oil tank signal transmitters were solved, achieving full cable sealing and long-term stable operation of the equipment, thus ensuring ship safety and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG XIANGYU MARINE EQUIP CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
The cables of existing marine fuel tank signal transmitters are exposed during wiring, making them susceptible to corrosion from sea waves and salt spray, leading to cable aging and damage. Furthermore, failure of the stuffing box flange seal may cause seawater leakage, affecting ship safety and economy.
Design a signal transmitter wiring sealing device, which uses a sealed tank to completely seal the cable inside, and uses metal hoses and multiple sealing measures to prevent the cable from being exposed. The top cover is equipped with a rubber ring and round steel to increase the sealing performance. The terminal block inside the tank has good water tightness and resistance to mechanical damage.
It extends the service life of equipment, prevents fuel pollution, improves the safety and economy of ship operation, reduces operating costs, and enhances overall performance and market competitiveness.
Smart Images

Figure CN224177894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine technology, and in particular to a signal transmitter wiring sealing device. Background Technology
[0002] The wiring method for the existing ship oil tank signal transmitters on the deck is usually as follows: the transmitter cable passes through the stuffing box flange at the top of the oil tank and is connected to the junction box, while another engine room analysis and display unit connection cable is introduced into the junction box from the deck cable conduit.
[0003] However, this wiring method has obvious drawbacks. Before entering the junction box, a section of the two cables will be exposed to the external environment. During the ship's voyage, the exposed cables are easily affected by the impact of waves and the corrosion of salt spray, which can lead to aging and damage of the cable sheath, and even cause faults such as short circuits.
[0004] Furthermore, the stuffing box flange at the top of the oil tank may experience sealing failure after prolonged use. If this occurs, seawater could leak into the oil tank through the connection between the flange and the cables, causing fuel contamination and severely impacting the ship's operational safety and economy. This design not only increases maintenance costs but also introduces potential safety hazards. Utility Model Content
[0005] The purpose of this invention is to solve the technical problem in the existing technology where a cable for a ship's transmitter exits through the stuffing box flange at the top of the oil tank and enters the junction box, while another cable enters the junction box from the deck cable conduit. This exposed cable is susceptible to the impact of waves and salt spray, leading to aging and damage to the cable sheath, and even short circuits. This application addresses this problem by using a sealed tank to completely enclose the cables entering and exiting the junction box, extending the equipment's service life, preventing fuel pollution, and improving the safety, reliability, and economy of ship operations, while meeting higher industry standards and environmental requirements. This not only helps ensure the safety of the ship and crew but also reduces operating costs and enhances the ship's overall performance and market competitiveness.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a signal transmitter wiring sealing device, comprising: a single-sided base plate, disposed on a deck; a tank body disposed on the single-sided base plate, with a top cover disposed on the top of the tank body; a wiring terminal connected to the bottom of the top cover by bolts; a circular pipe communicating with the tank body disposed on the side of the tank body, with the end of the circular pipe away from the tank body connected to a metal flexible hose; a cable protection pipe connected to the side wall of the oil tank disposed in the oil tank below the deck, and a signal transmitter connected to the wiring terminal disposed inside the cable protection pipe. A rubber ring is used for sealing inside the top cover, and a round steel bar is welded to the top of the tank body to prevent sharp corners from contacting the rubber ring, thereby increasing the service life of the rubber ring.
[0007] Furthermore, the end of the circular tube furthest from the tank body is provided with an external thread, which connects to a metal hose via a reducing coupling; the other end of the metal hose connects to a deck cable conduit via a reducing coupling; the connection is sealed with a rubber gasket to ensure waterproof performance; a second cable exits from the deck cable conduit, passes through the metal hose into the tank, and connects to a terminal block; the other end of the second cable connects to the cabin analysis and display unit; one side of the deck cable conduit is designed to be low-lying to prevent condensate from seeping into the tank body. A drainage hole is provided at the lowest point of the metal hose to ensure that condensate inside the pipe can be drained in a timely manner, preventing water accumulation.
[0008] Furthermore, the bottom of the cable protection pipe is enclosed by a circular plate, and an elongated hole is provided on the side. The signal transmitter is located at the bottom of the cable protection pipe.
[0009] Furthermore, a first cable is provided at the top of the signal transmitter. The first cable passes upward through the cable protection pipe and the deck, and extends into the tank body to connect with the wiring terminal.
[0010] Furthermore, a stuffing box flange is provided on the single-sided seat plate, and the tank body is connected to the stuffing box flange through the flange to complete the connection between the tank body and the single-sided seat plate.
[0011] Furthermore, one side of the top cover is connected to the tank body via a hinge, facilitating the opening and closing of the top cover.
[0012] Furthermore, a pin is provided on the hinge.
[0013] Furthermore, the top cover is equipped with scissor bolts to lock it in place when closed, ensuring a tight seal.
[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0015] 1. The present invention provides a signal transmitter wiring sealing device, wherein a flexible metal hose is used to connect the deck cable pipe to the tank body to ensure that there are no exposed parts of the cable throughout, thus avoiding environmental corrosion or mechanical damage to the cable; a drainage hole is opened at the lowest point of the flexible metal hose to facilitate the timely discharge of condensate and prevent water accumulation from affecting the performance of the equipment; at the same time, the connection between the stuffing box flange and the first cable is also located inside the tank body, to prevent seawater from leaking into the oil tank through the connection between the flange and the cable after the seal between the stuffing box flange and the first cable fails, causing fuel oil pollution.
[0016] 2. The present invention provides a signal transmitter wiring sealing device, wherein the terminal block is located inside the tank, which has good water tightness and anti-mechanical damage performance, ensuring the reliability and safety of electrical connection.
[0017] 3. This utility model provides a signal transmitter wiring sealing device. The top cover is locked with screw bolts and equipped with a hinge, handle, and pin for easy daily inspection and maintenance. The pin on the hinge can fix its position after the top cover is opened, facilitating operator work.
[0018] 4. The present invention provides a signal transmitter wiring sealing device, in which the signal transmitter is placed inside the cable protection pipe and can be directly pulled out from the deck for maintenance without the need for personnel to enter the oil tank, thereby improving maintenance efficiency and safety.
[0019] 5. The present invention provides a signal transmitter wiring sealing device, wherein an elongated hole is provided on the bottom side of the cable protection tube to ensure that the internal level of the protection tube is consistent with the oil tank level, thereby ensuring the measurement accuracy of the signal transmitter.
[0020] 6. This utility model provides a signal transmitter wiring sealing device. A rubber ring is used for sealing inside the top cover, and a round steel bar is welded to the top of the tank to prevent sharp angles from contacting the rubber ring, thus increasing the service life of the rubber ring. Especially during routine maintenance involving multiple opening and closing of the top cover, it maintains good sealing performance. Throughout the entire process of cable crossing and wiring, multiple sealing measures (such as rubber gaskets and sealing gaskets) are employed, significantly enhancing the overall sealing effect of the device and ensuring long-term stable operation of the equipment in harsh environments. Attached Figure Description
[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the top cover structure of this utility model;
[0024] Figure 3 This utility model Figure 2 View from direction A;
[0025] Figure 4 This utility model Figure 1 Enlarged view of point B;
[0026] Figure 5 This is a schematic diagram of the stuffing box flange structure of this utility model.
[0027] Legend:
[0028] 1. Single-sided seat plate; 2. Stuffing gland flange; 3. Flange; 4. Tank body; 5. Claw bolt; 6. Handle; 7. Top cover; 8. Thread; 9. Reducer; 10. Metal hose; 11. Deck cable conduit; 12. Drain hole; 13. Second cable; 14. Rubber gasket; 15. Round pipe; 16. Cable protection pipe; 17. Deck; 18. Oil tank bulkhead; 19. Signal transmitter; 20. Long slot; 21. Terminal block; 22. Rubber ring; 23. Round steel; 24. Small chain; 25. Hinge; 26. Pin; 27. First cable. Detailed Implementation
[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0031] Example 1:
[0032] Please see Figure 1This utility model provides a signal transmitter wiring sealing device, comprising: a single-sided base plate 1, disposed on a deck 17; a tank 4 disposed on the single-sided base plate 1, with a top cover 7 on the top of the tank 4; a wiring terminal 21 disposed at the bottom of the top cover 7; a circular pipe 15 communicating with the tank 4 disposed on the side of the tank 4, with one end of the circular pipe 15 away from the tank 4 connected to a metal flexible hose 10; a cable protection pipe 16 connected to the tank wall 18 disposed in the oil tank below the deck, and a signal transmitter 19 connected to the wiring terminal 21 disposed inside the cable protection pipe 16. A rubber ring 22 is used for sealing inside the top cover 7, and a round steel 23 is welded to the top of the tank 4 to prevent sharp corners from contacting the rubber ring 22, thereby increasing the service life of the rubber ring 22. A stuffing box flange 2 is disposed on the single-sided base plate 1, and the tank 4 is connected to the stuffing box flange 2 via the flange, completing the connection between the tank 4 and the single-sided base plate 1. After drilling holes in the deck, the single-sided welding plate 1 is welded to the deck surface, and then the stuffing box flange 2 is installed on the single-sided welding plate 1. The tank body 4 is connected to the stuffing box flange 2 via flange 3, and a sealing gasket is used between the flanges to ensure watertightness at the connection. The terminal block 21 is installed inside the top cover 7. The terminal block 21 is located inside the tank body 4, which has good watertightness and resistance to mechanical damage, ensuring the reliability and safety of the electrical connection; the signal transmitter 19 is placed inside the cable protection pipe 16, which can be directly pulled out from the deck 17 for maintenance without personnel entering the oil tank, improving maintenance efficiency and safety; the top cover 7 is sealed with a "rubber ring 22", and a "round steel 23" is welded to the top of the tank body 4 to prevent sharp corners from contacting the rubber ring 22, thereby increasing the service life of the rubber ring 22, especially maintaining good sealing performance during routine maintenance of the top cover 7 with multiple opening and closing; the top cover 7 is equipped with a handle 6 for easy opening of the top cover 7.
[0033] In this embodiment, the end of the circular tube 15 furthest from the tank 4 is provided with an external thread 8, which is connected to the metal hose 10 via a reducer 9; the other end of the metal hose 10 is connected to the deck cable conduit 11 via the reducer 9; the connection is sealed with a rubber gasket 14 to ensure waterproof performance; the second cable 13 passes through the deck cable conduit 11, through the metal hose 10, into the tank 4, and is connected to the terminal block 21; one side of the deck cable conduit 11 is designed to be low to prevent condensate from seeping into the tank 4. A drain hole 12 is provided at the lowest point of the metal hose 10 to ensure that condensate in the pipe can be drained in time and to avoid water accumulation.
[0034] A φ48×4 circular pipe 15 is welded to the side of the tank body 4 to introduce the second cable 13. The circular pipe 15 is machined with external threads 8 and connects to the metal hose 10 through a reducer 9. The connection is sealed with a rubber gasket 14 to ensure waterproof performance. The other end of the metal hose 10 is also connected to the deck cable pipe 11 through a reducer 9, and one side of the deck cable pipe 11 is designed to be low to prevent condensate from seeping into the tank body 4. A drainage hole 12 is opened at the lowest point of the metal hose 10 to ensure that condensate in the pipe can be discharged in time to avoid water accumulation. The connection between the deck cable pipe 11 and the tank body 4 is made of metal hose 10 to ensure that there are no exposed parts of the cable, avoiding environmental corrosion or mechanical damage to the cable. The drainage hole 12 at the lowest point of the metal hose 10 facilitates the timely drainage of condensate and prevents water accumulation from affecting equipment performance. Throughout the process of cable crossing and connection, multiple sealing measures (such as rubber gaskets 14, sealing gaskets, etc.) are adopted, which significantly enhances the overall sealing effect of the device and ensures long-term stable operation of the equipment in harsh environments.
[0035] In this embodiment, the bottom of the cable protection pipe 16 is enclosed by a circular plate, and an elongated hole 20 is provided on the side. The signal transmitter 19 is located at the bottom of the cable protection pipe 16. A first cable 27 is provided at the top of the signal transmitter 19. The first cable 27 passes upward through the cable protection pipe 16 and the deck 17, and extends into the tank 4 to connect with the terminal block 21.
[0036] A cable protection pipe 16 is installed inside the oil tank. The bottom of the pipe is sealed with a circular plate, and four elongated holes 20, each 10mm wide and 100mm high, are machined on the bottom side to connect the inside of the pipe to the oil tank, ensuring that the liquid level inside the pipe matches the liquid level in the oil tank. A signal transmitter 19 is placed at the bottom end of the cable protection pipe 16. The first cable 27 passes through the cable protection pipe 16, exits from the stuffing box flange 2, enters the tank body 4, and connects to the terminal block 21 inside the top cover 7.
[0037] Example 2:
[0038] Unlike the above embodiments, in this embodiment, one side of the top cover 7 is connected to the tank body 4 via a hinge 25, facilitating the opening and closing of the top cover 7. A pin 26 is connected to the hinge 25 via a small chain 24. Figure 4 As shown, the top cover 7 is equipped with screw bolts 5, which lock the top cover 7 when closed to ensure a tight seal; as Figure 3 As shown, a socket is provided on the hinge 25, and a socket is also provided at the rotational connection area between the top cover 7 and the hinge 25. When the top cover 7 is opened, the two sockets will overlap. At this time, the pin 26 is inserted into the socket to fix the opened top cover 7. After the top cover 7 is closed, it is locked with the claw bolt 5 to ensure a tight seal.
[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. A signal transmitter wiring sealing device, characterized in that, include: A single-sided seat plate (1) is set on the deck (17); a tank body (4) is set on the single-sided seat plate (1), and a top cover (7) is set on the top of the tank body (4); a wiring terminal (21) is set at the bottom of the top cover (7); a round pipe (15) communicating with the tank body (4) is set on the side of the tank body (4), and the end of the round pipe (15) away from the tank body (4) is connected to a metal hose (10); a cable protection pipe (16) connected to the tank wall (18) is set in the oil tank below the deck (17), and a signal transmitter (19) connected to the wiring terminal (21) is set in the cable protection pipe (16).
2. The signal transmitter wiring sealing device according to claim 1, characterized in that, The round tube (15) has an external thread (8) on one end away from the tank (4), which is connected to the metal hose (10) through a reducing connector (9); the other end of the metal hose (10) is connected to the deck cable pipe (11) through the reducing connector (9); the second cable (13) passes out from the deck cable pipe (11), passes through the metal hose (10) and enters the tank (4), and is connected to the terminal block (21).
3. The signal transmitter wiring sealing device according to claim 2, characterized in that, The bottom of the cable protection pipe (16) is closed, and a long hole (20) is provided on the side. The signal transmitter (19) is located at the bottom of the cable protection pipe (16).
4. The signal transmitter wiring sealing device according to claim 3, characterized in that, The top of the signal transmitter (19) is provided with a first cable (27), which passes upward through the cable protection pipe (16) and the deck (17) and extends into the tank (4) to connect with the terminal (21).
5. The signal transmitter wiring sealing device according to claim 4, characterized in that, A stuffing box flange (2) is provided on the single-sided seat plate (1), and the tank body (4) is connected to the stuffing box flange (2) through the flange (3) to complete the connection between the tank body (4) and the single-sided seat plate (1).
6. The signal transmitter wiring sealing device according to claim 5, characterized in that, The top cover (7) is connected to the tank body (4) on one side by a hinge (25).
7. The signal transmitter wiring sealing device according to claim 6, characterized in that, A pin (26) is provided on the hinge (25).
8. The signal transmitter wiring sealing device according to claim 7, characterized in that, The top cover (7) is provided with scissor bolts (5).
9. The signal transmitter wiring sealing device according to claim 7, characterized in that, A water flow hole (12) is provided at the lowest point of the metal hose (10).