A signal transfer box for water level control of a marine supercharged boiler

Abstract

The present invention discloses a signal transfer box for the water level control of a marine supercharged boiler in the technical field of signal transfer boxes, comprising: a signal transfer box assembly; the signal transfer box assembly includes: a housing, provided with two groups, and the two groups of housings are butt-jointed to form a hollow protective shell; a guide rail assembly, arranged on the housing, and used for the two groups of housings to move and butt-joint or separate. Through the setting of the signal transfer box assembly in this technical solution, during maintenance, by moving the two groups of housings away from each other, the electrical component mounting plate is exposed, so as to facilitate maintenance personnel to maintain the inside from multiple directions. The maintenance space given to the maintenance personnel is relatively large, greatly reducing the maintenance labor intensity and improving the maintenance efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of signal transfer boxes, and specifically to a signal transfer box for controlling the water level of a marine supercharged boiler. Background Art

[0002] A signal transfer box is a transfer device that leads electrical signals to a test panel. A signal transfer box is generally designed with an input connector, a box body, and an output connector. The design idea of the signal transfer box is to disconnect the direct connection signal from the original input to the output, and lead the two breakpoints out through two ports, one red and one black, on the front panel. In the actual use process, the two terminals, one red and one black, are connected by a banana terminal, and the interrupted signal is connected together again.

[0003] The operating place of a marine supercharged boiler is inside a ship's cabin, and the operating environment is working in the ocean for a long time. Currently, there are three main types of boiler steam drum water level control systems: single-impulse steam drum water level control system, single-stage three-impulse steam drum water level control system, and cascade three-impulse water level control system. For these water level control systems, a signal transfer box is required. Most traditional signal transfer boxes are integral. When it is necessary to maintain the electrical components inside the signal transfer box, the maintenance personnel manually open the box door on one side of the signal transfer box and maintain the electrical components inside the signal transfer box from one side. This method, on the one hand, gives the maintenance personnel a relatively small maintenance space, and on the other hand, the cables connecting the electrical components inside the signal transfer box are messy, increasing the labor intensity of manual maintenance and reducing the maintenance efficiency. For this reason, we propose a signal transfer box for controlling the water level of a marine supercharged boiler. Summary of the Invention

[0004] The purpose of the present invention is to provide a signal transfer box for controlling the water level of a marine supercharged boiler to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A signal transfer box for controlling the water level of a marine supercharged boiler, comprising:

[0006] A signal transfer box assembly;

[0007] The signal transfer box assembly includes:

[0008] Two outer shells, which are docked to form a hollow protective shell;

[0009] A guide rail assembly, which is arranged on the outer shell and is used for the two outer shells to move and dock or separate.

[0010] Further improvement lies in that the signal transfer box assembly further includes:

[0011] The electrical component mounting plate is placed inside the hollow protective shell. The electrical component mounting plate is provided with a main electrical component passing through it, and a connection port is provided on the main electrical component; and,

[0012] A receiving frame for fixing the electrical component mounting plate to the outside. A notch adapted to the receiving frame is provided on the outer shell;

[0013] An auxiliary component is provided on the electrical component mounting plate.

[0014] The further improvement lies in that the auxiliary component includes:

[0015] A support part. The electrical component mounting plate is connected to the outer shell through two groups of the support parts, and is used for telescoping with the movement of the outer shell;

[0016] A tray part is arranged on the electrical component mounting plate and corresponds to the main electrical component, and is used for covering the connection port; and,

[0017] A driving part is arranged on the electrical component mounting plate, and is used for cooperating with the support part to drive the tray part to turn to the side away from the electrical component mounting plate.

[0018] The further improvement lies in that the support part includes:

[0019] A first sealing cylinder is fixedly embedded in the electrical component mounting plate. A first piston adapted to it is arranged at the inner end of the first sealing cylinder, and the outer end of the first piston passes through the outside of the first sealing cylinder through a first piston rod movably;

[0020] A connecting frame for connecting the first piston rod with the outer shell;

[0021] An exhaust pipe is communicated with the outer end of the inner cavity of the first sealing cylinder; and,

[0022] A ventilation pipe is communicated with the inner end of the inner cavity of the first sealing cylinder, and the other end of the ventilation pipe penetrates through one side of the electrical component mounting plate.

[0023] The further improvement lies in that the tray part includes:

[0024] A tray main body is rotatably arranged on the electrical component mounting plate at one end through a shaft body and a mounting seat, and the tray main body covers the outside of the connection port on one side of the main electrical component;

[0025] A follower gear is fixedly sleeved at one end of the shaft body;

[0026] A wire bundling port corresponds to the connection port one by one, and the wire bundling port is opened at the other end of the tray main body and penetrates through the tray main body from front to back; and,

[0027] A limiting plate is detachably and movably sleeved on the tray main body and is used for blocking the wire bundling port.

[0028] A further improvement lies in that the driving part includes:

[0029] A second sealing cylinder, which is arranged on the electrical component mounting plate through a bracket, and an air vent is provided at the end of the second sealing cylinder;

[0030] Two groups of limiting rings are provided, and both groups of limiting rings are fixed in the inner cavity of the second sealing cylinder and close to the center of the second sealing cylinder. A second piston adapted to the second sealing cylinder is arranged on the side of the limiting ring away from the center of the second sealing cylinder;

[0031] A movable rod, the movable rod is movably inserted into the end of the second sealing cylinder, one end of the movable rod is connected with the second piston, and an L-shaped frame is arranged at the other end of the movable rod, and the L-shaped frame corresponds to the follower gear in the tray part; and,

[0032] A rack is arranged on the side of the L-shaped frame close to the follower gear, and the rack meshes with the follower gear to drive the follower gear to rotate;

[0033] The other end of the exhaust pipe in the first sealing cylinder is commonly connected with a pipe joint through a pipe, and the pipe joint is communicated with the position between the two groups of limiting rings in the inner cavity of the second sealing cylinder through an intercommunication pipe.

[0034] A further improvement lies in that the tray part further includes:

[0035] At least four groups of rolling balls are provided, and the four groups of rolling balls are respectively movably embedded around the inner cavity of the wire bundling port;

[0036] The length between the inner walls on both sides of the wire bundling port is less than the inner diameter of the connecting port.

[0037] A further improvement lies in that the guide rail assembly includes:

[0038] A guide rail, which is slidably arranged on the two outer shells for the outer shells to move along the guide rail. A wire passing port is provided on the outer shell, and a mounting plate is connected to the guide rail through a plurality of damping shock absorbers.

[0039] In summary, the present application discloses a signal transfer box for water level control of a marine supercharged boiler.

[0040] This technical solution is provided with a signal transfer box assembly. During maintenance, by moving the two sets of outer shells away from each other, the electrical component mounting plate is exposed, facilitating maintenance personnel to perform maintenance on its interior from multiple directions. The maintenance space provided for the maintenance personnel is relatively large, greatly reducing the maintenance labor intensity and improving the maintenance efficiency. At the same time, an auxiliary component is provided. When the outer shell moves, the first piston moves outward in the first sealing cylinder, and then the gas in the first sealing cylinder is discharged into the second sealing cylinder through the ventilation pipe and the intercommunication pipe. At this time, the upper and lower two sets of second pistons in the second sealing cylinder move away from each other, driving the movable rod to drive the L-shaped frame to rotate the follower gear through the rack. The rotation of the follower gear drives the other end of the main body of the support plate to flip away from the electrical component mounting plate to an inclined state. At the same time, the rolling balls lift the cables in the cable bundling port to an inclined state, further increasing the maintenance space. Meanwhile, the main body of the support plate and the cable bundling port keep the internally connected cables separated neatly, with high maintenance safety, improving the working efficiency during the maintenance of the signal transfer box, and when the main body of the support plate is not in use, it is in a vertical state and contacts the connection port, ensuring the stability of the connection between the external cable and the connection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a three-dimensional view of the structure of a signal transfer box for marine supercharged boiler water level control according to the present invention;

[0042] Figure 2 is one of the present invention Figure 1 partial three-dimensional view;

[0043] Figure 3 is a three-dimensional view of the structure of the auxiliary component in a signal transfer box for marine supercharged boiler water level control according to the present invention;

[0044] Figure 4 is a cross-sectional view of the structure of the auxiliary component in a signal transfer box for marine supercharged boiler water level control according to the present invention;

[0045] Figure 5 is a cross-sectional view of the structure of the support plate part in a signal transfer box for marine supercharged boiler water level control according to the present invention;

[0046] Figure 6 is a three-dimensional view of the structure of the driving part in a signal transfer box for marine supercharged boiler water level control according to the present invention.

[0047] In the figure: 1. Signal transfer box assembly; 11. Outer shell; 12. Wire passing port; 13. Guide rail; 14. Mounting plate; 15. Damping shock absorber; 16. Electrical component mounting plate; 17. Bearing frame; 18. Electrical component body; 181. Connection port; 2. Auxiliary component; 21. Support part; 211. First sealing cylinder; 212. Connection frame; 213. Exhaust pipe; 214. Vent pipe; 22. Support plate part; 221. Support plate body; 222. Follow-up gear; 223. Cable bundling port; 224. Limit plate; 225. Rolling ball; 23. Driving part; 231. Second sealing cylinder; 232. Limit ring; 233. Movable rod; 234. L-shaped frame; 235. Interconnected pipe; 236. Rack. Detailed implementation mode

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Embodiment 1

[0050] Please refer to Figure 1-2 , a signal transfer box for water level control of a marine supercharged boiler, comprising: a signal transfer box assembly 1 and an auxiliary assembly 2;

[0051] Among them, the signal transfer box assembly 1 includes: an outer shell 11, a wire passing port 12, a guide rail 13, a mounting plate 14, a damping shock absorber 15, an electrical component mounting plate 16, a bearing frame 17, and a connecting electrical component body 18;

[0052] Furthermore, as can be seen from the attached Figure 2 , there are two sets of outer shells 11. The two sets of outer shells 11 are docked with each other to form a rectangular hollow protective shell, which plays a role in supporting, accommodating and protecting the structure. In actual situations, the connection part of the two sets of outer shells 11 can be sealed by embedding a sealing material to ensure the sealing performance of the connection part. At the same time, after the two sets of outer shells 11 are docked, a snap-type structure can be used for fixation. For example, a male buckle is provided on the outer wall of one set of outer shells 11, and a female buckle matching with it is provided on the outer wall of the other set of outer shells 11. Of course, the snap-type structure is not limited to the above structure;

[0053] Wire passing ports 12 can be opened at the bottom of the front and rear sides of the outer shell 11. When the two sets of outer shells 11 are docked, the wire passing ports 12 on the two sets of outer shells 11 can be communicated with each other. The wire passing port 12 is used for external cables to enter the interior of the outer shell 11 and connect with the electrical components inside. It should be noted that in actual situations, after the external cables pass through the wire passing port 12, waterproof sealing treatment can be performed at the wire passing port 12, which will not be elaborated here;

[0054] The guide rails 13 are provided with at least two groups, and the two groups of guide rails 13 are horizontally arranged symmetrically up and down at the upper and lower ends of the rear sides of the two groups of outer shells 11. Specifically, sliders are provided on the rear sides of the outer shells 11 and placed in the guide grooves of the guide rails 13. The outer shells 11 can move horizontally in the guide rails 13 through the sliders. The front sides of the outer shells 11 are also provided with handles for manual operation of the movement of the outer shells 11. Therefore, when the staff needs to maintain the internal structure of the hollow protective shell, by operating the two groups of outer shells 11 to move away from each other / close to each other through the handles, the internal structure can be maintained;

[0055] The electrical component mounting plate 16 is placed in the exact center of the hollow protective shell. The electrical component mounting plate 16 serves to support and mount electrical components. Some of the electrical components required in the prior art signal transfer box can be mounted on the electrical component mounting plate 16, and no further details will be given here;

[0056] To ensure that the electrical component mounting plate 16 is stably located within the outer shell 11, a receiving frame 17 is connected to the rear outer wall of the electrical component mounting plate 16. The shape of the receiving frame 17 is T-shaped. It should be noted that the receiving frame 17 is placed in the exact center of the hollow protective shell, that is, concave openings adapted to the receiving frame 17 are provided at the rear ends of the opposite sides of the two groups of outer shells 11, so that the outer shells 11 and the receiving frame 17 do not interfere with each other. The end of the receiving frame 17 away from the electrical component mounting plate 16 is fixed to the outside, for example, it can be fixed at a designated position on the ship;

[0057] At least two groups of electrical component main bodies 18 are provided. Activity openings are respectively penetrated through the top and bottom of one side of the electrical component mounting plate 16, and the two groups of electrical component main bodies 18 are respectively fixed in the two activity openings. Both sides of the electrical component main body 18 are provided with a plurality of connection ports 181 for connecting with external cables;

[0058] It should be noted that the electrical component main body 18 belongs to the conventional structure in the existing signal transfer box, such as a terminal block assembly, and no further details will be given here;

[0059] A plurality of damping shock absorbers 15 are provided. The plurality of damping shock absorbers 15 are arranged equidistantly along a linear array at the rear side of the guide rails 13. Considering that this signal transfer box is for marine use, the damping shock absorbers 15 are used to reduce the influence of vibration during use on the internal structure of the hollow protective shell. The damping shock absorbers 15 belong to the prior art. An ideal damping shock absorber 15 is an oil damper, and there are also solid viscous dampers, air dampers, and friction dampers, etc.;

[0060] The mounting plate 14 is placed behind the guide rails 13 and is jointly connected to the ends of the plurality of damping shock absorbers 15 away from the guide rails 13 at the rear of the guide rails 13. The mounting plate 14 is provided with mounting through holes, which are convenient for being fixed at a designated position using external bolt-like fixing components.

[0061] Example 2

[0062] Please refer to Figures 3-5 , for the convenience of the staff to further maintain the internal structure of the hollow protective shell, the auxiliary component 2 includes: a support portion 21, a tray portion 22, and a driving portion 23;

[0063] The support portion 21 is used to enable the driving portion 23 to drive the tray portion 22 to flip. At least four groups of support portions 21 are provided, and two of them are connected to the outer shell 11;

[0064] Among them, the support portion 21 includes: a first sealing cylinder 211, a connecting frame 212, an exhaust pipe 213, and a ventilation pipe 214;

[0065] The first sealing cylinder 211 is fixedly embedded in the side wall of the electrical component mounting plate 16 and is placed outside the movable opening on the electrical component mounting plate 16. A first piston adapted to its inner diameter is movably provided at the inner end of the first sealing cylinder 211. One end of a first piston rod is connected to the outside of the first piston, and one end of the first piston rod movably penetrates the outside of the first sealing cylinder 211;

[0066] The connecting frame 212, one end is fixed to the other end of the first piston rod, and the other end is fixed to the inner wall of the corresponding side of the outer shell 11. Specifically, the other end of the left connecting frame 212 is fixed to the left inner wall of the left outer shell 11, and the other end of the right connecting frame 212 is fixed to the right inner wall of the right outer shell 11. When the two outer shells 11 move away from each other, the first piston rod is driven by the connecting frame 212 connected thereto to move the first piston in the first sealing cylinder 211;

[0067] The exhaust pipe 213 is provided at the outer end of the outer wall of one side of the first sealing cylinder 211. The exhaust pipe 213 is communicated with the inner cavity of the first sealing cylinder 211. When the first piston moves outward in the first sealing cylinder 211, the air inside the first sealing cylinder 211 outside the first piston is discharged from the exhaust pipe 213;

[0068] The ventilation pipe 214, one end is connected to the inner end of the outer wall of one side of the first sealing cylinder 211 and is communicated with the first sealing cylinder 211. Specifically, as can be seen from the attachment Figures 4-5 , one end of the ventilation pipe 214 is placed inside the first piston, and the other end penetrates the rear side of the electrical component body 18. When the first piston moves outward in the first sealing cylinder 211, air enters through the ventilation pipe 214. When the first piston moves inward in the first sealing cylinder 211, air enters through the exhaust pipe 213 and is discharged through the ventilation pipe 214;

[0069] The internal air pressure of the first sealing cylinder 211 is always kept balanced through the ventilation pipe 214 and the exhaust pipe 213, ensuring the stable movement of the first piston in the first sealing cylinder 211;

[0070] Please refer to Figures 5-6, there are at least four sets of the pallet parts 22, with one set symmetrically arranged at the top and bottom of the front and back sides of the electrical component mounting plate 16. The pallet part 22 includes: a pallet main body 221, a follower gear 222, a wire bundling port 223, a limiting plate 224, and a rolling ball 225;

[0071] Among them, for the pallet main body 221, the pallet main body 221 is specifically placed inside the movable opening in the electrical component mounting plate 16. One end of the pallet main body 221 close to the center of the electrical component mounting plate 16 is rotationally connected to the outer wall of the electrical component mounting plate 16 through a shaft body and a mounting seat. The pallet main body 221 can rotate through the shaft body. In the initial state, that is, as shown Figure 5 in the figure, the pallet main body 221 is in a vertical state, and the other end of it close to one side of the electrical component mounting plate 16 fits with multiple connection ports 181 on one side of the electrical component main body 18, so as to reinforce the connection between the external cable and the connection port 181 through the pallet main body 221 after the external cable is connected to the connection port 181, and prevent loosening;

[0072] The follower gear 222 is fixedly sleeved on the outer wall of the left end of the shaft body in the pallet main body 221 and is placed to the left of the electrical component mounting plate 16. The follower gear 222 is used to cooperate with the driving part 23 (which will be described in detail later) to make the shaft body drive the pallet main body 221 to rotate;

[0073] There are multiple wire bundling ports 223, and the number of them is the same as the number of connection ports 181 on one side of the electrical component main body 18. That is, if the number of connection ports 181 on one side of the electrical component main body 18 is five groups, then the number of wire bundling ports 223 is also five groups. Multiple wire bundling ports 223 are equidistantly arranged in a linear array at the other end of the pallet main body 221 and penetrate through the pallet main body 221 from front to back. The wire bundling ports 223 correspond to the connection ports 181 one by one. The length between the inner walls on both sides of the wire bundling port 223 is less than the inner diameter of the connection port 181. When the external cable is connected to the connection port 181, the pallet main body 221 positions the connection between the external cable and the connection port 181 to prevent loosening at the connection;

[0074] The limiting plate 224 is U-shaped and can be detachably sleeved on the other end of the pallet main body 221 by using bolt-like components. A handle is provided on the side of the limiting plate 224 away from the electrical component mounting plate 16 for manual removal of the limiting plate 224;

[0075] The wire bundling port 223 is used to place the cable connected to the connection port 181 inside it, playing a role in separating the cables and facilitating later maintenance. By blocking one end of the wire bundling port 223 with the limiting plate 224, it is avoided that the cable detaches from the wire bundling port 223 when the pallet main body 221 rotates;

[0076] Furthermore, one side of the pallet body 221 close to the connection port 181 can be inlaid with an insulating rubber pad or the pallet body 221 is made of insulating rubber material;

[0077] The rolling balls 225 are at least provided in four groups. The four groups of rolling balls 225 are respectively movably inlaid around the inner cavity of the wire bundling port 223. The external cables are placed between the four groups of rolling balls 225 in the wire bundling port 223 and are in contact with the outer walls of the rolling balls 225. On the one hand, it reduces contact wear. On the other hand, it can play a role in lifting the cables when the pallet body 221 rotates. When the pallet body 221 rotates to an inclined state, the cables are lifted to be inclined. The rolling balls 225 can preferably be made of rubber material;

[0078] Please refer to Figures 4-5 , the driving part 23 includes: a second sealing cylinder 231, a limiting ring 232, a movable rod 233, an L-shaped frame 234, an intercommunication pipe 235 and a rack 236;

[0079] Among them, the second sealing cylinder 231 is specifically arranged on the left middle part of the electrical component mounting plate 16 by a bracket for cooperating with the follower gear 222. The second sealing cylinder 231 is the same as the above-mentioned first sealing cylinder 211, and both are hollow cylindrical;

[0080] The limiting rings 232 are provided in two groups. The two groups of limiting rings 232 are respectively fixed on the upper and lower sides of the inner cavity of the second sealing cylinder 231 and close to the center of the second sealing cylinder 231, so that the entering gas is placed between the two pistons II;

[0081] As can be seen from the attached Figure 4 , a piston II adapted to the inner diameter of the second sealing cylinder 231 is attached to the side of the limiting ring 232 away from the center of the second sealing cylinder 231. One end of the movable rod 233 is connected to the side of the piston II away from the limiting ring 232. When the piston II moves, it drives the movable rod 233 to move. The other end of the movable rod 233 movably penetrates through the end of the second sealing cylinder 231;

[0082] As can be seen from the attached Figure 5 , the other ends of the exhaust pipes 213 in the two left first sealing cylinders 211 are both connected with a pipe joint through a pipe. The pipe joint can be a three-way pipe, and the other end of the three-way pipe is connected with the intercommunication pipe 235. The other end of the intercommunication pipe 235 is connected with the second sealing cylinder 231;

[0083] It should be noted that the other end of the intercommunication pipe 235 is placed between the two limiting rings 232 in the second sealing cylinder 231. When the piston I moves outwards in the first sealing cylinder 211, the gas in the left first sealing cylinder 211 is discharged from the exhaust pipe 213, the pipe, the pipe joint and the intercommunication pipe 235 into the second sealing cylinder 231, so that the upper and lower two pistons II in the second sealing cylinder 231 move away from each other;

[0084] The L-shaped frames 234 are symmetrically arranged in front and back at the end of the movable rod 233 away from the second piston. Two groups of L-shaped frames 234 are respectively engaged with the follower gears 222 in the front and rear support plate parts 22. The L-shaped frames 234 are placed inside the follower gears 222, and a rack 236 engaged with the follower gears 222 is arranged on the side close to the follower gears 222. When the upper and lower second pistons move away from each other, the movable rod 233 drives the L-shaped frames 234 to move. Furthermore, the L-shaped frames 234 drive the follower gears 222 to rotate through the racks 236, so that the other end of the support plate body 221 flips to be inclined in the direction away from the electrical component mounting plate 16.

[0085] It should be noted that ventilation holes are provided at both ends of the second sealing cylinder 231 to ensure the air pressure balance inside the second sealing cylinder 231, so that the second piston can move stably inside the second sealing cylinder 231.

[0086] In summary, the working principle of a signal transfer box for controlling the water level of a marine supercharged boiler is as follows: During use, connect the cable of the external device for controlling the water level of the supercharged boiler to the connection port 181, pass the external cable through the corresponding cable bundling port 223 and place it between the four groups of rolling balls 225. Then, dock one end of the cable with the connection port 181 through a cable connector widely used in the field. When it is necessary to maintain the inside of the hollow protective shell, move the two outer shells 11 away from each other. When the outer shells 11 move away, the first piston moves outward in the first sealing cylinder 211. Furthermore, the gas in the first sealing cylinder 211 is discharged from the exhaust pipe 213. The gas discharged from the left exhaust pipe 213 is discharged into the second sealing cylinder 231 through a pipeline, a pipe joint, and an intercommunication pipe 235, so that the upper and lower second pistons in the second sealing cylinder 231 move away from each other. Thus, the movable rod 233 drives the L-shaped frames 234 and the racks 236 to move to drive the follower gears 222 to rotate. The rotation of the follower gears 222 drives the other end of the support plate body 221 to flip in the direction away from the electrical component mounting plate 16. At the same time, the rolling balls 225 lift the cable in the cable bundling port 223 to be inclined, giving the user a large maintenance space. The user can quickly maintain the inside of its hollow protective shell. At the same time, the cables are neatly separated, facilitating quick maintenance and having high maintenance safety.

[0087] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A signal transfer box for water level control of a marine supercharged boiler, characterized in that, Comprising: Signal transfer box assembly (1); The signal transfer box assembly (1) includes: Housings (11), provided in two groups, and the two groups of housings (11) are docked to form a hollow protective shell; Guide rail assembly, arranged on the housing (11) for the two groups of housings (11) to move and dock or separate; The signal transfer box assembly (1) further includes: Electrical component mounting plate (16), placed inside the hollow protective shell, and an electrical component main body (18) is penetrated through the electrical component mounting plate (16), and a connection port (181) is provided on the electrical component main body (18); and, Carrying bracket (17), used to fix the electrical component mounting plate (16) to the outside, and a notch adapted to the carrying bracket (17) is provided on the housing (11); An auxiliary component (2) is provided on the electrical component mounting plate (16); The auxiliary component (2) includes: Support part (21), the electrical component mounting plate (16) is connected to the housing (11) through the two support parts (21) for telescoping with the movement of the housing (11); Support plate part (22), arranged on the electrical component mounting plate (16) and corresponding to the electrical component main body (18) for covering the connection port (181); and, Drive part (23), arranged on the electrical component mounting plate (16) for driving the support plate part (22) to flip to the side away from the electrical component mounting plate (16) in cooperation with the support part (21); The support part (21) includes: Sealing cylinder one (211), the sealing cylinder one (211) is fixedly embedded in the electrical component mounting plate (16), a piston one adapted thereto is arranged at the inner end of the sealing cylinder one (211), and the outer end of the piston one movably penetrates through the outside of the sealing cylinder one (211) through a piston rod one; Connecting frame (212), used to connect the piston rod one with the housing (11); Exhaust pipe (213), communicating with the outer end of the inner cavity of the sealing cylinder one (211); and, Vent pipe (214), communicating with the inner end of the inner cavity of the sealing cylinder one (211), and the other end of the vent pipe (214) penetrates through one side of the electrical component mounting plate (16); The support plate part (22) includes: Support plate main body (221), one end is rotatably arranged on the electrical component mounting plate (16) through a shaft body and a mounting seat, and the support plate main body (221) covers the outside of the connection port (181) on one side of the electrical component main body (18); Follow-up gear (222), fixedly sleeved on one end of the shaft body; Wire bundling port (223), corresponding to the connection port (181) one by one, and the wire bundling port (223) is opened at the other end of the support plate main body (221) and penetrates through the support plate main body (221) front and back; and, Limit plate (224), detachably and movably sleeved on the support plate main body (221) for blocking the wire bundling port (223); The drive part (23) includes: Sealing cylinder two (231), arranged on the electrical component mounting plate (16) through a bracket, and a vent hole is opened at the end of the sealing cylinder two (231); There are two sets of limit rings (232), both of which are fixed in the inner cavity of the second sealing cylinder (231) and close to the center of the second sealing cylinder (231). On the side of the limit ring (232) away from the center of the second sealing cylinder (231), a second piston adapted to the second sealing cylinder (231) is attached. A movable rod (233) is movably inserted at the end of the second sealing cylinder (231). One end of the movable rod (233) is connected to the second piston, and the other end of the movable rod (233) is provided with an L-shaped frame (234), which corresponds to the follower gear (222) in the support plate part (22); and, A rack (236) is arranged on the side of the L-shaped frame (234) close to the follower gear (222). The rack (236) meshes with the follower gear (222) to drive the follower gear (222) to rotate. The other end of the exhaust pipe (213) in the first sealing cylinder (211) is commonly connected to a pipe joint through a pipe. The pipe joint is communicated with the position between the two sets of limit rings (232) in the inner cavity of the second sealing cylinder (231) through an interconnection pipe (235).

2. The signal transfer box for water level control of a marine supercharged boiler according to claim 1, characterized in that: The support plate part (22) further includes: At least four sets of rolling balls (225) are provided, and the four sets of rolling balls (225) are respectively movably embedded around the inner cavity of the wire bundling port (223). The length between the inner walls on both sides of the wire bundling port (223) is less than the inner diameter of the connection port (181).

3. The signal transfer box for water level control of a marine supercharged boiler according to claim 1, characterized in that: The guide rail assembly includes: A guide rail (13) is slidably arranged on the two sets of outer shells (11) for the outer shells (11) to move along the guide rail (13). A wire passing port (12) is opened on the outer shell (11). The guide rail (13) is connected to a mounting plate (14) through a plurality of damping shock absorbers (15).

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