Locking type connector
By combining the magnetic ring with the threaded connection, the problem of poor flexibility in existing locking connectors is solved, achieving a stable connection in vibration environments and simplifying the operation process, thus enhancing the stability and reliability of the connector.
Patent Information
- Application Number
- CN202520117351.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-18
AI Technical Summary
Existing locking connectors have poor flexibility and cannot adjust the locking method according to different connection scenarios.
The design combines a magnetic ring and a threaded connection. The magnetic ring has embedded magnetic material that attracts the outer metal surface. The protective sleeve has a limiting groove on its periphery that matches the limiting strip. The main body has a cavity structure inside. The threaded connection ensures stability. The sealing cover fits with the outside. The protective sleeve has equidistant limiting grooves 106a on its periphery. The protective sleeve has a threaded connection on its inner side to lock and unlock. The sealing cover is fixed to the external structure.
It provides additional mechanical locking function, enhances connector stability, reduces the risk of accidental disconnection, improves connection reliability, simplifies operational flexibility, and streamlines the installation and disassembly process.
Smart Images

Figure CN223898671U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of connector technology, and in particular relates to a locking connector. Background Technology
[0002] A connector generally refers to an electrical connector, which is a device that connects two active devices to transmit current or signals. Connectors are a common component. Their function is very simple: to bridge gaps in a circuit or between isolated circuits, allowing current to flow and enabling the circuit to perform its intended function. Connector forms and structures are highly diverse, varying depending on the application, frequency, power, and environment.
[0003] A previously published patent (publication number CN 210404199 U) discloses a locking DC connector, including a male head, a female head, and a housing. The male head's male connector terminal and the female head's female connector terminal are inserted into each other. The male head also includes a connecting post with a first external thread on its outer side wall. The female head also includes a connecting seat with a second external thread. The housing is cylindrical, and its inner wall has a first internal thread that mates with the first external thread and a second internal thread that mates with the second external thread. This connector achieves locking and unlocking of the DC connector by rotating the housing, providing both a secure connection and easy disassembly.
[0004] However, the aforementioned connectors lack flexibility and cannot adjust their locking method according to different connection scenarios. Therefore, we provide a locking connector to solve the problems mentioned above. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a locking connector, including a connector body. The connector body includes a main body, a limiting ring integrally disposed at the bottom of the main body, a sleeve extending outward along the main body, a sealing cap threadedly fitted to the end of the sleeve, a protective sleeve threadedly fitted to the front end of the main body, a magnetic suction ring movably sleeved outside the protective sleeve, a connecting end integrally disposed at the front end of the main body, and a terminal embedded inside the connecting end.
[0007] The present invention is further configured such that the main body is a cylindrical structure with an internal cavity, and the periphery of the main body is provided with threads.
[0008] The present invention is further provided that an ear seat is integrally provided at the edge of the sealing cover, and the ear seat is fixed to the external mounting structure by fasteners.
[0009] The present invention is further configured such that the protective sleeve is provided with equidistant limiting grooves on its periphery, and the limiting grooves are matched with the limiting strip integrally provided on the inner side of the magnetic ring.
[0010] The present invention is further configured such that a magnetic material is embedded inside the magnetic ring, and the inner side of the magnetic ring is attracted to the outer metal contact surface.
[0011] The present invention is further configured such that the inner side of the protective sleeve is provided with threads, and the inner wall of the protective sleeve is spaced apart from the periphery of the connecting end, one end of the protective sleeve is threadedly connected to the main body, and the other end of the protective sleeve is adapted to the thread of the external wiring terminal.
[0012] The present invention is further configured such that an annular gap is provided between the connecting end and the terminal, and the terminal is provided with a plurality of connecting holes, which cooperate with the metal pins of the external wiring end.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model uses the magnetic material embedded inside the magnetic ring to attract the external metal contact surface, which not only provides an additional mechanical locking function, but also keeps the connector stable in a vibration environment, reducing the risk of accidental disconnection. The limiting groove set on the periphery of the protective sleeve matches the limiting strip inside the magnetic ring, ensuring that the magnetic ring will not rotate or fall off at will.
[0015] 2. All parts requiring connection in this utility model adopt threaded connection, which allows the installation and disassembly process to be completed quickly without special tools, simplifying the operation process and reducing the installation difficulty.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the front side of the overall structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the rear part of the overall structure of this utility model.
[0020] Figure 3 This is a schematic diagram of the other side of the front of the overall structure of this utility model.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 100. Connector body; 101. Main body; 102. Limiting ring; 103. Sleeve; 104. Sealing cap; 105. Ear socket; 106. Protective sleeve; 106a. Limiting groove; 107. Connecting end; 108. Terminal; 109. Magnetic ring; 109a. Limiting strip. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example
[0025] Please see Figure 1-3 A locking connector includes a connector body 100, the connector body 100 including a main body 101, a limiting ring 102 integrally disposed at the bottom of the main body 101, a sleeve 103 extending outward along the main body 101, a sealing cap 104 threadedly fitted to the end of the sleeve 103, a protective sleeve 106 threadedly fitted to the front end of the main body 101, a magnetic ring 109 movably sleeved on the outside of the protective sleeve 106, a connecting end 107 integrally disposed at the front end of the main body 101, and a terminal 108 embedded inside the connecting end 107.
[0026] Specifically, the protective sleeve 106 is provided with equidistant limiting grooves 106a on its periphery. The limiting grooves 106a match the limiting strips 109a integrally formed on the inner side of the magnetic ring 109, ensuring that the magnetic ring 109 can be stably and movably sleeved on the outside of the protective sleeve 106 without rotating or falling off at will. The magnetic ring 109 has a magnetic material embedded inside, and its inner side is attracted to the outer metal contact surface. The magnetic material embedded in the magnetic ring 109 can be attracted to the outer metal contact surface, increasing the stability and safety of the connector, so that the connector can remain stable even in a vibration environment, reducing the risk of accidental disconnection.
[0027] The inner side of the protective sleeve 106 is provided with threads, and the inner wall of the protective sleeve 106 is spaced apart from the periphery of the connecting end 107. One end of the protective sleeve 106 is threadedly connected to the main body 101, and the other end of the protective sleeve 106 is adapted to the thread of the external wiring terminal.
[0028] An annular gap is provided between the connecting end 107 and the terminal 108. The terminal 108 is provided with a plurality of connecting holes, which cooperate with the metal pins of the external wiring terminal to complete the electrical connection. The annular gap between the connecting end 107 and the terminal 108 helps to reduce the direct contact between the two, thereby reducing the impact of heat conduction and electromagnetic interference.
[0029] Furthermore, the main body 101 has a cylindrical structure with an internal cavity, and the periphery of the main body 101 is provided with threads. An ear seat 105 is integrally provided at the edge of the sealing cover 104, and the ear seat 105 is fixed to the external mounting structure by fasteners. The internal cavity of the main body 101 is used to accommodate the terminals 108 and other internal components required for electrical connection, which not only provides sufficient space to arrange electrical contact points, but also ensures the stability of the connector during use. The threads on the periphery of the main body 101 are used for threaded connection with other components (such as the protective sleeve 106), ensuring the safety and reliability of the connection.
[0030] The specific steps for using this locking connector are as follows:
[0031] First, visually inspect the connector and its accessories to confirm that there is no physical damage or defect; clean all threaded interfaces to ensure that there are no foreign objects that may obstruct installation;
[0032] 2. Align the connector end 107 of the connector body 100 with the external wiring end, and gently push it in until you feel the action of the limit ring 102. This indicates that the correct insertion depth has been reached.
[0033] 3. Tighten the protective sleeve 106 to the threaded area at the front end of the main body 101, so that one end of the protective sleeve 106 is connected to the main body 101 and the other end is threaded to the external terminal to ensure a firm and reliable connection.
[0034] Fourth, the magnetic ring 109 is fitted onto the outside of the protective sleeve 106, and the magnetic material is used to attract it to the external metal surface to further enhance the stability of the connector.
[0035] Fifth, finally, screw the sealing cap 104 onto the end of the sleeve 103 to complete the assembly and sealing of the entire connector.
[0036] Working principle
[0037] Once the locking connector is in use, current flows through the metal pins on the external terminals into the internal terminal 108, and then from the terminal 108 to the circuit system on the other end of the connector. During this process, the additional locking function provided by the magnetic ring 109 ensures a stable connection even under vibration conditions. The double protective layer formed by the protective sleeve 106 and the sealing cap 104 effectively isolates the internal components of the connector from external environmental factors, including moisture, dust, and other factors that may cause malfunctions. The threaded connections of each node simplify the installation and maintenance process, allowing users to easily install, adjust, or replace the connector without the aid of special tools.
[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A locking connector, comprising a connector body (100), characterized in that: The connector body (100) includes a main body (101), a limiting ring (102) integrally disposed at the bottom of the main body (101), a sleeve (103) extending outward along the main body (101), a sealing cap (104) threadedly fitted to the end of the sleeve (103), a protective sleeve (106) threadedly fitted to the front end of the main body (101), a magnetic ring (109) movably fitted outside the protective sleeve (106), a connecting end (107) integrally disposed at the front end of the main body (101), and a terminal (108) embedded inside the connecting end (107).
2. A locking connector according to claim 1, characterized in that, The main body (101) is a cylindrical structure with an internal cavity, and the periphery of the main body (101) is provided with threads.
3. A locking connector according to claim 1, characterized in that, An ear seat (105) is integrally provided at the edge of the sealing cover (104), and the ear seat (105) is fixed to the external mounting structure by fasteners.
4. A locking connector according to claim 1, characterized in that, The protective sleeve (106) is provided with equidistant limiting grooves (106a) on its periphery, and the limiting grooves (106a) are matched with the limiting strips (109a) integrally provided on the inner side of the magnetic ring (109).
5. A locking connector according to claim 1, characterized in that, The magnetic ring (109) is embedded with magnetic material, and the inner side of the magnetic ring (109) is adsorbed to the outer metal contact surface.
6. A locking connector according to claim 1, characterized in that, The inner side of the protective sleeve (106) is provided with threads, and the inner wall of the protective sleeve (106) is spaced apart from the periphery of the connecting end (107). One end of the protective sleeve (106) is threadedly connected to the main body (101), and the other end of the protective sleeve (106) is adapted to the thread of the external wiring terminal.
7. A locking connector according to claim 1, characterized in that, An annular gap is provided between the connecting end (107) and the terminal (108), and the terminal (108) is provided with a plurality of connecting holes, which are engaged with the metal pins of the external wiring terminal.
Citation Information
Patent Citations
Locking type DC connector
CN210404199U