A device to prevent accidental activation of the heavy oil control knob on a twin-cylinder marine diesel engine.

Through the transmission and protection mechanisms of the anti-accidental touch component, the protective plate is moved stably by using a double-headed motor to drive a bevel gear set and a double-headed screw. This solves the safety hazards of accidental touch of the diesel engine heavy oil knob and the problem of cumbersome operation, and realizes automated protection and improved safety.

CN224519208UActive Publication Date: 2026-07-17NANTONG HULIAN NAVIGATION EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG HULIAN NAVIGATION EQUIP CO LTD
Filing Date
2025-10-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional diesel engine heavy oil knobs lack physical isolation, posing a safety hazard of accidental activation. Furthermore, existing protective devices are cumbersome to operate, unstable, and difficult to provide effective protection.

Method used

It adopts anti-accidental contact components, including a transmission mechanism and a protective mechanism. It uses a double-headed motor to drive a bevel gear set to realize power diversion and direction conversion. Combined with the linkage of a double-headed screw and a reverse threaded transmission block, it realizes the opposite movement of the protective plate, ensuring stable and reliable operation.

Benefits of technology

Automatic protection of the diesel engine heavy oil knob has been implemented to prevent leakage or safety accidents caused by accidental contact, thereby improving operational safety and protection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an anti-accidental touch device for the operation knob of a heavy oil control knob for a twin-cylinder marine diesel engine, relating to the field of twin-cylinder marine technology. It includes a mounting plate, a knob, a transmission mechanism, and a protective mechanism. This utility model solves the safety problems of traditional protection methods that rely on manual operation and are prone to accidental touches leading to high-temperature heavy oil leakage or burns by setting up a coordinated linkage structure between the transmission mechanism and the protective mechanism. The transmission mechanism is driven by a dual-head motor, and through a transmission rod, a driving bevel gear meshing with a driven bevel gear, it synchronously transmits power to the vertical direction. The connecting rod drives the driving gear to rotate, ensuring stable power output and synchronization on both sides, avoiding off-center load failure. In the protective mechanism, the driving gear drives the driving rack to move, causing the meshing gear to rotate, which in turn drives the coaxial dual-head screw to rotate. Because the threads at both ends of the dual-head screw rotate in opposite directions, they cause the two transmission blocks and the protective plate fixed on them to move towards each other, forming a physical isolation barrier covering the outside of the knob.
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Description

Technical Field

[0001] This utility model relates to the field of twin-cylinder boat technology, specifically a device to prevent accidental touch of the operation knob of the heavy oil knob for a twin-cylinder boat diesel engine. Background Technology

[0002] In diesel engine systems used in ships or power plants, the heavy oil knob is a key component that operates in high temperature, high pressure and high vibration environments for a long time. Maintenance personnel often work around it, and traditional protection relies on warning signs or manual barriers, lacking physical isolation measures, which poses a safety hazard.

[0003] Although some equipment is equipped with fixed protective covers, they require manual disassembly and assembly, making maintenance cumbersome and prone to losing their protective function due to forgetting to reset them; in addition, the single-sided push-pull structure has problems with unstable operation and incomplete closure, resulting in poor protective reliability. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide an anti-accidental touch device for the operation knob of the heavy oil knob of a twin-cylinder marine diesel engine, which has the advantage of automatic protection and solves the safety hazard problem of accidental touch.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device to prevent accidental touch of the operation knob of a heavy oil knob for a twin-cylinder marine diesel engine, wherein the anti-accidental touch component includes a mounting plate and a knob, and the knob is disposed at the front end of the mounting plate;

[0006] A transmission mechanism is provided on the rear side of the mounting plate, and a protective mechanism is provided on the surface of the transmission mechanism. The transmission mechanism is used to provide power to the protective mechanism, and the protective mechanism is used to protect the knob.

[0007] In a preferred embodiment of this invention, the transmission mechanism includes a fixed ring, a dual-head motor, transmission rods, a driving bevel gear, a driven bevel gear, a driving gear, and a protective cover. The inner wall of the fixed ring is fixedly connected to the surface of the dual-head motor. The output ends on both sides of the dual-head motor are fixedly connected to the surfaces of the two transmission rods. The surface of the transmission rods is fixedly connected to the inner wall of the driving bevel gear. The side of the driving bevel gear meshes with the side of the driven bevel gear. The surface of the driven bevel gear is fixedly connected to the surface of the driving gear via a connecting rod. The protective cover is disposed on the outside of the driving bevel gear and the driven bevel gear.

[0008] In a preferred embodiment of this invention, the surface of the fixing ring is fixedly connected to the surface of the mounting plate, the surface of the protective cover is fixedly connected to the surface of the mounting plate, and the surface of the transmission rod is rotatably connected to the inner wall of the protective cover.

[0009] In a preferred embodiment of this utility model, the protective mechanism includes a protective cover, a drive rack, a mating gear, a double-ended screw, a transmission block, and a protective plate. The inner wall of the protective cover is slidably connected to the surface of the drive rack via a sliding groove. The tooth surface of the drive rack meshes with the tooth surface of the mating gear. The inner wall of the mating gear is fixedly connected to the upper end of the double-ended screw. The surface of the double-ended screw is threadedly connected to the inner wall of the transmission block. The surface of the transmission block is fixedly connected to the surface of the protective plate.

[0010] In a preferred embodiment of this invention, both the driving gear and the mating gear are disposed inside the protective cover, the surface of the double-ended screw is rotatably connected to the inner wall of the protective cover, and the lower end of the protective cover is fixedly connected to the upper end of the protective cover.

[0011] In a preferred embodiment of this invention, the surface of the protective cover is fixedly connected to the inner wall of the mounting plate, and the surface of the transmission block is slidably connected to the inner wall of the protective cover via a sliding groove.

[0012] As a preferred embodiment of this invention, the two protective plates are in side contact.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model solves the problem of accidental contact during operation or maintenance of diesel engine heavy oil knob by setting an anti-accidental contact component, which can lead to leakage or safety accidents, and achieves the effect of protection and improved operational safety.

[0015] 2. This utility model solves the problems of asynchronous transmission and delayed response in traditional transmissions by setting up a transmission mechanism and using a dual-head motor to synchronously drive a bevel gear set to achieve power splitting and direction conversion, thus ensuring stable and reliable protective action.

[0016] 3. This utility model solves the problems of low efficiency and incomplete isolation of manual protection by setting up a protective mechanism and using a double-headed screw and a reverse threaded transmission block to drive the two protective plates to move in opposite directions, thus achieving closed physical isolation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the transmission mechanism provided in an embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the protective mechanism provided in this embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the main body in vertical cross-section provided in this embodiment of the utility model.

[0021] In the diagram: 1. Anti-accidental touch component; 101. Mounting plate; 102. Knob; 2. Transmission mechanism; 201. Fixing ring; 202. Dual-head motor; 203. Transmission rod; 204. Driving bevel gear; 205. Driven bevel gear; 206. Driving gear; 207. Protective cover; 3. Protective mechanism; 301. Protective cover; 302. Driving rack; 303. Matching gear; 304. Dual-head screw; 305. Transmission block; 306. Protective plate. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Example 1

[0027] Reference Figure 1-4 The first embodiment of this utility model provides an anti-accidental touch component 1, which includes a mounting plate 101 and a knob 102. The knob 102 is disposed at the front end of the mounting plate 101. A transmission mechanism 2 is disposed at the rear side of the mounting plate 101. A protective mechanism 3 is disposed on the surface of the transmission mechanism 2. The transmission mechanism 2 is used to provide power to the protective mechanism 3, and the protective mechanism 3 is used to protect the knob 102.

[0028] Specifically, the anti-accidental touch component 1 solves the problem of leakage, burns or safety accidents caused by accidental touch of the diesel engine heavy oil knob 102 during operation or maintenance. By setting a transmission mechanism 2 and a protective mechanism 3 on the mounting plate 101, the protective action is automatically controlled. The transmission mechanism 2 uses a dual-head motor 202 as the power source to ensure stable power output and high synchronization. Under the drive of the transmission mechanism 2, the protective mechanism 3 drives the two protective plates 306 to move towards each other, forming a physical isolation barrier that effectively covers the key area outside the knob 102.

[0029] Furthermore, when it is necessary to prevent accidental activation of the heavy oil knob 102 of the diesel engine, the dual-head motor 202 can be used to provide power for subsequent protection.

[0030] Example 2

[0031] The second embodiment of this utility model provides a transmission mechanism 2 including a fixed ring 201, a dual-head motor 202, a transmission rod 203, a driving bevel gear 204, a driven bevel gear 205, a driving gear 206, and a protective cover 207. The inner wall of the fixed ring 201 is fixedly connected to the surface of the dual-head motor 202. The output ends on both sides of the dual-head motor 202 are fixedly connected to the surfaces of the two transmission rods 203. The surface of the transmission rods 203 is fixedly connected to the inner wall of the driving bevel gear 204. The side of the driving bevel gear 204 meshes with the side of the driven bevel gear 205. The surface of the driven bevel gear 205 is fixedly connected to the surface of the driving gear 206 through a connecting rod. The protective cover 207 is disposed on the outside of the driving bevel gear 204 and the driven bevel gear 205. The surface of the fixed ring 201 is fixedly connected to the surface of the mounting plate 101. The surface of the protective cover 207 is fixedly connected to the surface of the mounting plate 101. The surface of the transmission rod 203 is rotatably connected to the inner wall of the protective cover 207.

[0032] Specifically, the transmission mechanism 2 solves the problems of cumbersome operation, slow response, and uneven power transmission of traditional manual protective devices. It provides a stable power source through a dual-head motor 202 and uses dual output shafts to synchronously drive two transmission rods 203 to ensure consistent transmission operation on both sides and avoid unbalanced load. The active bevel gear 204 and the driven bevel gear 205 mesh vertically to realize the conversion of power direction, turning the horizontal rotational motion into vertical transmission. The protective cover 207 effectively protects the core transmission components, reduces the intrusion of dust and oil, and extends the service life of the mechanism.

[0033] Furthermore, when it is necessary to protect the diesel engine's heavy oil knob 102 from accidental contact, the dual-head motor 202 is first started as the power source. This motor has a dual-output shaft structure, with the output ends on both sides fixedly connected to one end of two transmission rods 203 to transmit power synchronously. The other end of the transmission rods 203 is fixed with a drive bevel gear 204. The motor's operation drives the transmission rods 203 and the drive bevel gear 204 to rotate synchronously. The drive bevel gear 204 meshes with the vertically arranged driven bevel gear 205, converting the power from horizontal transmission to vertical rotational motion. The driven bevel gear 205 is fixed to the shaft of the driven bevel gear 205 through a connecting rod, and the two are linked coaxially. The drive gear 206 meshes with the vertically arranged drive rack 302.

[0034] Example 3

[0035] The third embodiment of this utility model provides a protective mechanism 3 including a protective cover 301, a drive rack 302, a mating gear 303, a double-ended screw 304, a transmission block 305, and a protective plate 306. The inner wall of the protective cover 301 is slidably connected to the surface of the drive rack 302 via a sliding groove. The tooth surface of the drive rack 302 meshes with the tooth surface of the mating gear 303. The inner wall of the mating gear 303 is fixedly connected to the upper end of the double-ended screw 304. The surface of the double-ended screw 304 is connected to the inner wall of the transmission block 305. The transmission block 305 is fixedly connected to the surface of the protective plate 306 via a threaded connection. The drive gear 206 and the mating gear 303 are both located inside the protective cover 301. The surface of the double-ended screw 304 is rotatably connected to the inner wall of the protective cover 301. The lower end of the protective cover 301 is fixedly connected to the upper end of the protective cover 207. The surface of the protective cover 301 is fixedly connected to the inner wall of the mounting plate 101. The surface of the transmission block 305 is slidably connected to the inner wall of the protective cover 301 via a sliding groove. The two protective plates 306 are in side contact.

[0036] Specifically, the protective mechanism 3 effectively solves the problem that the diesel engine heavy oil knob 102 is easily accidentally touched or misoperated during operation or maintenance, leading to leakage or safety accidents. Through the meshing transmission of the active rack 302 and the cooperating gear 303, the motion mode is converted. Combined with the synchronous linkage of the double-headed screw 304 and the reverse thread transmission block 305, the opposing linear motion of the two protective plates 306 is realized, ensuring that the protective action is stable and reliable. The protective plates 306 close under the drive of the motor, completely covering the outside of the knob 102, forming a physical isolation barrier, which improves the safety of equipment operation and the level of protection automation.

[0037] Furthermore, as the drive gear 206 rotates, it drives the drive rack 302 to move horizontally. At the same time, the drive rack 302 meshes with the mating gear 303, converting the linear motion into the rotational motion of the mating gear 303. The mating gear 303 is coaxially fixed with the double-ended screw 304, driving the screw to rotate together. The threads at both ends of the double-ended screw 304 have opposite directions and are respectively equipped with transmission blocks 305. The inner thread of the transmission block 305 engages with the corresponding part of the screw. When the screw rotates, because the threads at both ends have opposite directions, the two transmission blocks 305 move synchronously towards or away from each other in opposite directions on the screw. A protective plate 306 is fixed to the outside of each transmission block 305. Initially, the protective plate 306 is in the open position. As the transmission blocks 305 move towards each other, the two protective plates 306 gradually approach each other, and finally the inner surfaces fit together, completely covering the outer area of ​​the heavy oil knob 102, achieving physical isolation and protection against accidental touch.

[0038] Working principle:

[0039] When the heavy oil knob 102 of the diesel engine needs to be protected against accidental contact, the dual-head motor 202 is first started as the power source. This motor has a dual-output shaft structure, with its two output ends fixedly connected to one end of two transmission rods 203 to ensure synchronous power transmission. The other end of the transmission rod 203 is fixedly mounted with a drive bevel gear 204. When the motor runs, it drives the transmission rod 203 and the drive bevel gear 204 to rotate synchronously. The drive bevel gear 204 meshes with the driven bevel gear 205 arranged vertically, thereby converting the power from horizontal transmission to vertical rotational motion. On the shaft of the driven bevel gear 205, a drive gear 206 is fixed through a connecting rod. The two are coaxial and linked. The drive gear 206 meshes with the vertically arranged drive rack 302. As the drive gear 206 rotates, it drives the drive rack 302 to move horizontally. At the same time, the drive rack 302 also maintains a meshing relationship with the mating gear 303, so that the linear motion of the drive rack 302 rotates... The rotational motion of the mating gear 303 is converted into the rotational motion of the double-ended screw 304. The mating gear 303 is coaxially and fixedly connected to the double-ended screw 304, so the motion can be transmitted to the screw, making it rotate together with the mating gear 303. The special structure of the double-ended screw 304 is that its two ends are machined with threads of opposite directions, that is, one end is left-handed and the other end is right-handed. On these two threads, a matching transmission block 305 is assembled. The inner thread of the transmission block 305 is engaged with the corresponding part of the screw. When the double-ended screw 304 rotates under the action of power, since the threads at both ends are of opposite directions, the two transmission blocks 305 will move synchronously towards or away from each other in a straight line along the screw in opposite directions. A protective plate 306 is fixedly connected to the outside of each transmission block 305. In the initial state, the protective plate 306 is in the open position. When the transmission blocks 305 move towards each other, the two protective plates 306 gradually approach each other, and finally their inner surfaces are tightly fitted together, completely covering the outer area of ​​the heavy oil knob 102, realizing physical isolation and protection against accidental contact.

[0040] In summary, by using a dual-head motor, bevel gear transmission, rack and pinion conversion, and the coordinated operation of a dual-head screw with reverse threads and a transmission block, the rotational motion of a single power source is transformed into the synchronous opposing linear motion of two protective plates, ultimately achieving a closed-loop protection effect for the diesel engine heavy oil knob.

[0041] The knobs and dual-head motors used in this application can be additionally equipped with protective measures that are common knowledge in the field of this technology under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust protection, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0042] It should be noted that (double-headed motor, driving bevel gear, driven bevel gear, driving gear, driving rack, mating screw and double-headed screw) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mis-touch prevention device for an operating knob of a twin-cylinder marine diesel engine heavy oil knob, characterized by: An anti-accidental touch component (1) for a heavy oil rotary knob operating knob of a twin-cylinder marine diesel engine is included. The anti-accidental touch component (1) includes a mounting plate (101) and a knob (102), with the knob (102) disposed at the front end of the mounting plate (101). A transmission mechanism (2) is provided on the rear side of the mounting plate (101), and a protective mechanism (3) is provided on the surface of the transmission mechanism (2). The transmission mechanism (2) is used to provide power to the protective mechanism (3), and the protective mechanism (3) is used to protect the knob (102).

2. A mis-touch prevention device for an operating knob of a heavy oil knob of a twin-cylinder marine diesel engine according to claim 1, characterized in that: The transmission mechanism (2) includes a fixed ring (201), a dual-head motor (202), a transmission rod (203), a driving bevel gear (204), a driven bevel gear (205), a driving gear (206), and a protective cover (207). The inner wall of the fixed ring (201) is fixedly connected to the surface of the dual-head motor (202). The output ends on both sides of the dual-head motor (202) are fixedly connected to the surfaces of the two transmission rods (203). The surface of the transmission rod (203) is fixedly connected to the inner wall of the driving bevel gear (204). The side of the driving bevel gear (204) meshes with the side of the driven bevel gear (205). The surface of the driven bevel gear (205) is fixedly connected to the surface of the driving gear (206) through a connecting rod. The protective cover (207) is disposed on the outside of the driving bevel gear (204) and the driven bevel gear (205).

3. A mis-touch prevention device for an operating knob of a heavy oil knob of a twin-cylinder marine diesel engine according to claim 2, characterized in that: The surface of the fixing ring (201) is fixedly connected to the surface of the mounting plate (101), the surface of the protective cover (207) is fixedly connected to the surface of the mounting plate (101), and the surface of the transmission rod (203) is rotatably connected to the inner wall of the protective cover (207).

4. The anti-accidental touch device for the heavy oil knob of a twin-cylinder marine diesel engine according to claim 2, characterized in that: The protective mechanism (3) includes a protective cover (301), an active rack (302), a mating gear (303), a double-ended screw (304), a transmission block (305), and a protective plate (306). The inner wall of the protective cover (301) is slidably connected to the surface of the active rack (302) through a sliding groove. The tooth surface of the active rack (302) meshes with the tooth surface of the mating gear (303). The inner wall of the mating gear (303) is fixedly connected to the upper end of the double-ended screw (304). The surface of the double-ended screw (304) is threadedly connected to the inner wall of the transmission block (305). The surface of the transmission block (305) is fixedly connected to the surface of the protective plate (306).

5. A mis-touch prevention device for an operating knob of a heavy oil knob of a twin-cylinder marine diesel engine according to claim 4, characterized in that: The driving gear (206) and the mating gear (303) are both located inside the protective cover (301). The surface of the double-ended screw (304) is rotatably connected to the inner wall of the protective cover (301). The lower end of the protective cover (301) is fixedly connected to the upper end of the protective cover (207).

6. A mis-touch prevention device for an operating knob of a heavy oil knob of a twin-cylinder marine diesel engine according to claim 5, characterized in that: The surface of the protective cover (301) is fixedly connected to the inner wall of the mounting plate (101), and the surface of the transmission block (305) is slidably connected to the inner wall of the protective cover (301) through a sliding groove.

7. A mis-touch prevention device for an operating knob of a heavy oil knob of a twin-cylinder marine diesel engine according to claim 6, characterized in that: The two protective plates (306) are in side contact.