Locking structure of a contactor for a ship
By combining the reaction mechanism, interlocking components, and drive components, and utilizing limit posts, guide posts, and electromagnetic locks, the problem of contactor maloperation under vibration environment is solved, and the stability and anti-maloperation effect of the contactor are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG BOWO ELECTRIC CO LTD
- Filing Date
- 2026-05-22
- Publication Date
- 2026-06-26
AI Technical Summary
In a vibrating environment, contactors are prone to malfunction, and existing technologies are unable to effectively prevent this.
It adopts a combination structure of reaction mechanism, interlocking parts, drive assembly and fastening assembly. The interlocking parts cooperate with the limiting post and limiting hole of the connecting rod, combined with the positioning and fixing of the guide post and the protrusion, and use electromagnetic lock to achieve self-locking effect to prevent the bracket from being misoperated in the vibration environment.
It improves the stability of the contactor in vibration environments, avoids misoperation, has a simple structure, good locking effect, and is easy to operate, making it suitable for vibration environments such as ships.
Smart Images

Figure CN224417714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power technology, specifically to a locking structure for a marine contactor. Background Technology
[0002] The contactor includes a housing, which is provided with a bracket that can move up and down relative to it. A contact bridge that closes or opens with a stationary contact is mounted on the bracket. Mounting plates for fixing the housing are provided on both sides of the bracket. A reaction mechanism for supporting the bracket is provided between the mounting plates and the bracket. The reaction mechanism plays the role of supporting the bracket.
[0003] However, in specific environments, such as on ships or in environments with frequent vibrations, the support structure is prone to contact bridges connecting with stationary contacts under the influence of vibration, leading to malfunctions. How to prevent individual contactors from malfunctioning in vibrating environments has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0004] Therefore, the technical problem to be solved by this utility model is how to prevent a single contactor from malfunctioning in a vibrating environment. A locking structure for a marine contactor includes:
[0005] A reaction mechanism, the reaction mechanism including a connecting rod, the connecting rod being connected to a support;
[0006] An interlocking component, which cooperates with the connecting rod to form a first locking part and a second locking part, the interlocking component having an interlocking hole, the first locking part and the second locking part forming a connection and fixation between the connecting rod and the interlocking component;
[0007] A drive assembly, the drive assembly including a drive source and a locking tongue, the drive source driving the locking tongue to move;
[0008] In the open state, the latch extends to the interlocking hole and locks the interlocking member; in the closed state, the latch extends from the interlocking hole and the connecting rod drives the interlocking member to move.
[0009] One of the interlocking member and the connecting rod is provided with a limiting post, and the other of the interlocking member and the connecting rod is provided with a limiting hole that cooperates with the limiting post. There is at least one planar connection between the limiting post and the inner wall of the limiting hole. The limiting post and the limiting hole cooperate to form the first locking part.
[0010] It also includes a fastening assembly that passes through the interlocking member and is connected to the connecting rod. The fastening assembly, the interlocking member, and the connecting rod cooperate to form the second locking part.
[0011] The interlocking component is provided with a guide post, the connecting rod is provided with a protrusion, the guide post is sleeved on the protrusion, and the fastening assembly passes through the guide post and is connected to the protrusion.
[0012] The fastening assembly includes a guide sleeve and a fastener, the guide sleeve being housed within the guide post, and the fastener passing through the guide sleeve and connecting to the protrusion.
[0013] The connection between the guide sleeve and the guide post is a stepped connection.
[0014] The interlocking hole has a notch.
[0015] The interlocking component is provided with a guide surface, which guides the bolt into the interlocking hole.
[0016] The interlocking component is injection molded as a single piece.
[0017] The driving component is an electromagnetic lock.
[0018] The technical solution of this utility model has the following advantages:
[0019] 1. This utility model provides a locking structure for a marine contactor. With this structure, a single contactor can achieve a self-locking effect through the drive assembly. That is, when the circuit is open, the interlocking components are locked, thereby restricting the movement of the support and achieving a locking effect. This structure is simple, has a good locking effect, prevents malfunction of the contactor under vibration, and improves the stability of the contactor's operation.
[0020] 2. This utility model provides a locking structure for a marine contactor, in which a limiting post and a limiting hole cooperate to form a limiting and locking effect. Alternatively, other fixing methods can be used, such as bolt fixing, rivet fixing, etc.
[0021] 3. The locking structure of a marine contactor provided by this utility model, with the setting of fastening components, better achieves the connection and fixing effect between the interlocking parts and the connecting rod.
[0022] 4. The present invention provides a locking structure for a marine contactor, wherein the guide post and the protrusion form a positioning and fixing effect.
[0023] 5. The locking structure for a marine contactor provided by this utility model, with its guide sleeve, further improves the fastening effect. A gasket can also be added between the fastener and the guide sleeve.
[0024] 6. The present invention provides a locking structure for a marine contactor, which features a stepped connection to create a positioning and fixing effect for the guide sleeve, preventing the guide sleeve from shifting.
[0025] 7. The present invention provides a locking structure for a marine contactor. The guide surface is designed such that when the locking tongue just abuts against the guide surface, the sliding of the guide surface allows the locking tongue to enter the interlocking hole, thus forming a locking effect.
[0026] 8. The locking structure of a marine contactor provided by this utility model, through injection molding, makes the processing of the interlocking parts more convenient. The interlocking parts can be designed with various features to meet different mating requirements. Compared with metal parts, plastic parts are easier to process and have a better interlocking effect. Here, the interlocking parts can be made of high-strength plastic.
[0027] 9. The locking structure of a marine contactor provided by this utility model adopts an electromagnetic lock, which makes operation more convenient. It can form a cooperation between the control unit and the contactor circuit to meet the cooperation between the two. Attached Figure Description
[0028] 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.
[0029] Figure 1 A schematic diagram of a locking structure for a marine contactor provided by this utility model;
[0030] Figure 2 A partial structural diagram of a locking structure for a marine contactor provided by this utility model;
[0031] Figure 3 A partial cross-sectional view from another angle of the locking structure of a marine contactor provided by this utility model;
[0032] Figure 4 A schematic diagram of the structure of the interlocking component provided by this utility model;
[0033] Figure 5 A schematic diagram of the connecting rod provided by this utility model.
[0034] Explanation of reference numerals in the attached figures:
[0035] 11. Connecting rod; 12. Bracket; 13. Interlocking component; 14. First locking part; 15. Second locking part; 16. Drive assembly; 17. Limiting post; 18. Limiting hole; 111. Protrusion; 131. Interlocking hole; 132. Guide post; 133. Notch; 134. Guide surface; 135. Reinforcing rib; 161. Drive source; 162. Locking tongue; 191. Guide sleeve; 192. Fastener; 193. Washer. Detailed Implementation
[0036] 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.
[0037] 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.
[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] Furthermore, 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.
[0040] Example 1
[0041] This embodiment provides a locking structure for a marine contactor, as shown in the attached figure. Figures 1-5 As shown, it includes:
[0042] The reaction mechanism includes two connecting rods 11, connected by a connecting shaft to create a linkage between them. In addition, the reaction mechanism includes a torsion spring that engages with the connecting rods 11; this is existing technology and will not be described in detail here. The connecting rods 11 are connected to the bracket 12, and their movement is coordinated. When the contactor opens, the torsion spring, through the connecting rods 11, drives the bracket 12 to reset, causing it to move vertically up and down, thus achieving the opening and closing effects; this is also existing technology and will not be described in detail here. In existing contactors, when used on ships (where waves create vibrations during navigation), the bracket 12 may reciprocate vertically under the force of these vibrations, posing a risk of misoperation.
[0043] The interlocking component 13, in cooperation with the connecting rod 11, forms a first locking part 14 and a second locking part 15. These two locking parts create two locking zones, achieving a secure connection between the interlocking component 13 and the connecting rod 11. Compared to a single locking zone, which cannot provide omnidirectional locking, the two locking zones offer a better locking effect. The first locking part 14 and the second locking part 15 can have the same or different structures, depending on actual needs. The first locking part 14 and the second locking part 15 form the connection and fixation between the connecting rod 11 and the interlocking component 13. The interlocking component 13 is provided with an interlocking hole 131.
[0044] The drive assembly 16 includes a drive source 161 and a locking tongue 162. The drive source 161 drives the locking tongue 162 to move. When the drive source 161 is working, the drive source 161 drives the locking tongue 162 to move; conversely, when the drive source 161 is not working, the locking tongue 162 is reset. Here, the drive source 161 can be an electromagnetic module, a motor, or other drive structure.
[0045] In the open state, the locking tongue 162 extends to the interlocking hole 131, engaging with it. At this time, the locking tongue 162 is positioned on the movement trajectory of the side wall of the interlocking hole 131. When the interlocking member 13 moves, the locking tongue 162 restricts the rotation of the interlocking member 13, thus achieving the effect of locking the interlocking member 13. In the closed state, the locking tongue 162 extends out of the interlocking hole 131, meaning it is reset. The locking tongue 162 is no longer positioned on the movement trajectory of the side wall of the interlocking hole 131. When the interlocking member 13 moves, the locking tongue 162 does not restrict its movement. At this time, the connecting rod 11 drives the interlocking member 13 to move, and the bracket 12 can move up and down.
[0046] With this structural design, a single contactor can achieve a self-locking effect through the drive assembly 16. That is, when in the open state, it locks itself to the interlocking element 13, thereby restricting the movement of the bracket 12 and achieving a locking effect. This structure is simple, provides good locking performance, prevents malfunctions of the contactor under vibration, and improves the stability of the contactor's operation.
[0047] Specifically, as shown in the attached document Figures 3-5 As shown, one of the interlocking member 13 and the connecting rod 11 is provided with a limiting post 17, and the other of the interlocking member 13 and the connecting rod 11 is provided with a limiting hole 18 that mates with the limiting post 17. When the interlocking member 13 is provided with the limiting post 17, the connecting rod 11 is provided with the limiting hole 18; conversely, when the interlocking member 13 is provided with the limiting hole 18, the connecting rod 11 is provided with the limiting post 17. The connection between the limiting post 17 and the inner wall of the limiting hole 18 has at least one planar connection point. Specifically, this planar connection point is where the planes abut against each other; that is, the outer wall of the limiting post 17 has a plane, and the inner wall of the limiting hole 18 has a plane, and the two planes abut against each other to form a planar connection point. When the planes abut against each other, a limiting and fixing effect is achieved, and the interlocking member 13 and the connecting rod 11 are fixedly connected. Furthermore, the limiting post 17 can be a regular triangular prism, with the limiting hole 18 having a corresponding shape; the limiting post 17 can also be a regular square prism, or even a regular hexagonal prism. The limiting post 17 and the limiting hole 18 cooperate to form the first locking part 14. The cooperation between the limiting post 17 and the limiting hole 18 creates a limiting and locking effect. Alternatively, other fixing methods can be used, such as bolt fixing, rivet fixing, etc.
[0048] Specifically, it also includes a fastening assembly, which passes through the interlocking member 13 and connects to the connecting rod 11. The fastening assembly, interlocking member 13, and connecting rod 11 cooperate to form a second locking part 15. The fastening assembly better achieves the connection and fixation effect between the interlocking member 13 and the connecting rod 11.
[0049] Specifically, as shown in the attached document Figures 3-5 As shown, the interlocking component 13 is provided with a guide post 132, and the connecting rod 11 is provided with a protrusion 111. The guide post 132 is sleeved on the protrusion 111, forming a pre-positioning and fixing effect between the guide post 132 and the protrusion 111. The fastening component passes through the guide post 132 and connects with the protrusion 111. The guide post 132 and the protrusion 111 form a positioning and fixing effect.
[0050] Specifically, as shown in the attached document Figure 3 As shown, the fastening assembly includes a guide sleeve 191 and a fastener 192. The guide sleeve 191 is housed within the guide post 132, and the fastener 192 passes through the guide sleeve 191 and connects to the protrusion 111. The guide sleeve 191 further enhances the fastening effect. A washer 193 can also be added between the fastener 192 and the guide sleeve 191. The fastener 192 can be a bolt, specifically a self-tapping screw.
[0051] Specifically, the connection between the guide sleeve 191 and the guide post 132 is a stepped connection. The stepped connection provides a positioning and fixing effect for the guide sleeve 191, preventing the guide sleeve 191 from moving.
[0052] Specifically, as shown in the attached document Figures 3-5 As shown, the interlocking hole 131 has a notch 133. The notch 133 is provided here to better achieve the cooperation effect between the interlocking hole 131 and the bolt 162.
[0053] Specifically, the cross-section of the latch 162 can be circular, square, triangular, or irregular in shape, and those skilled in the art can adjust it according to actual needs.
[0054] Specifically, as shown in the attached document Figures 3-5 As shown, the interlocking component 13 is provided with a guide surface 134, which guides the bolt 162 into the interlocking hole 131. The guide surface 134 is provided so that when the bolt 162 just abuts against the guide surface 134, the bolt 162 can enter the interlocking hole 131 by sliding the guide surface 134, thus forming a locking effect.
[0055] Specifically, as shown in the attached document Figures 1-5 As shown, the interlocking component 13 is provided with several reinforcing ribs 135, which improve the overall strength of the interlocking component 13.
[0056] Specifically, the interlocking component 13 is injection molded as a single piece. This single-piece injection molding design makes the processing of the interlocking component 13 more convenient. The interlocking component 13 can be designed with various features to meet different mating requirements. Compared to metal parts, plastic parts are easier to process and provide better interlocking performance. Here, the interlocking component 13 can be made of high-strength plastic.
[0057] Specifically, as shown in the attached document Figures 1-2 As shown, the drive component 16 is an electromagnetic lock, the drive source 161 is the electromagnetic part of the electromagnetic lock, and the latch 162 is part of the electromagnetic lock. Using an electromagnetic lock makes operation more convenient, and the control unit can coordinate with the contactor's circuitry to satisfy the cooperation between the two. In addition, the drive source 161 can also be a motor, etc. In this embodiment, the electromagnetic lock is fixed to the outer wall of the contactor. This fixing method can be a bolt connection, an adhesive connection, or a snap-fit connection.
[0058] Specifically, as shown in the attached document Figures 1-2 As shown, the lines connecting the imaginary center of the first locking part 14, the imaginary center of the second locking part 15, and the imaginary center of the interlocking hole 131 form a triangle. When locked, the triangular structure is more stable and can achieve a better locking effect, preventing the bracket 12 from moving.
[0059] 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 protection scope of this invention.
Claims
1. A locking structure for a marine contactor, characterized in that, include: A reaction mechanism, the reaction mechanism including a connecting rod (11), the connecting rod (11) being connected to a support (12); Interlocking component (13), the interlocking component (13) cooperates with the connecting rod (11) to form a first locking part (14) and a second locking part (15), the interlocking component (13) is provided with an interlocking hole (131), the first locking part (14) and the second locking part (15) form a connection and fixation between the connecting rod (11) and the interlocking component (13); The drive assembly (16) includes a drive source (161) and a locking tongue (162), wherein the drive source (161) drives the locking tongue (162) to move. In the open state, the locking tongue (162) extends to the interlocking hole (131) and locks the interlocking member (13); in the closed state, the locking tongue (162) extends out from the interlocking hole (131) and the connecting rod (11) drives the interlocking member (13) to move.
2. The locking structure of the marine contactor according to claim 1, characterized in that, One of the interlocking member (13) and the connecting rod (11) is provided with a limiting post (17), and the other of the interlocking member (13) and the connecting rod (11) is provided with a limiting hole (18) that cooperates with the limiting post (17). The limiting post (17) and the inner wall of the limiting hole (18) have at least one planar connection. The limiting post (17) and the limiting hole (18) cooperate to form the first locking part (14).
3. The locking structure of the marine contactor according to claim 1, characterized in that, It also includes a fastening assembly that passes through the interlocking member (13) and is connected to the connecting rod (11). The fastening assembly, the interlocking member (13), and the connecting rod (11) cooperate to form the second locking part (15).
4. The locking structure of the marine contactor according to claim 3, characterized in that, The interlocking component (13) is provided with a guide post (132), the connecting rod (11) is provided with a protrusion (111), the guide post (132) is sleeved on the protrusion (111), and the fastening assembly passes through the guide post (132) and is connected to the protrusion (111).
5. The locking structure of the marine contactor according to claim 4, characterized in that, The fastening assembly includes a guide sleeve (191) and a fastener (192). The guide sleeve (191) is housed within the guide post (132), and the fastener (192) passes through the guide sleeve (191) and connects to the protrusion (111).
6. The locking structure of the marine contactor according to claim 5, characterized in that, The connection between the guide sleeve (191) and the guide post (132) is a stepped connection.
7. The locking structure of the marine contactor according to claim 1, characterized in that, The interlocking hole (131) is provided with a notch (133).
8. The locking structure of the marine contactor according to claim 1, characterized in that, The interlocking member (13) is provided with a guide surface (134), which guides the locking tongue (162) into the interlocking hole (131).
9. The locking structure of the marine contactor according to claim 1, characterized in that, The interlocking component (13) is injection molded as a single piece.
10. The locking structure of the marine contactor according to claim 1, characterized in that, The drive component (16) is an electromagnetic lock.