Connector structure with locking structure
By designing a connector structure with initial locking and secondary tightening components, the problem of easy breakage of the locking tabs was solved, achieving a stable electrical connection of the connector and enhancing the electrical performance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINCHUANGLIAN PRECISION ELECTRONICS CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-19
AI Technical Summary
When existing connectors are used for a long time or subjected to large external forces, the locking tabs are prone to fatigue fracture, which leads to unstable electrical connection between the circuit board and the connector and affects the electrical performance of the equipment.
The connector structure employs a combination of initial locking and secondary locking components, including a first connector, a second connector, a protrusion, a spring, a plug, and a sleeve. Through the initial connection and secondary locking mechanism, the stability of the circuit connection is ensured and loosening is prevented.
It effectively resists vibration and impact, reduces the risk of loosening or falling off connections, ensures the continuous stability of circuit connections, and improves electrical performance.
Smart Images

Figure CN224264404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically to a connector structure with a locking mechanism. Background Technology
[0002] With the rapid development of electronic technology, various electronic devices and industrial systems are placing increasingly stringent performance requirements on connectors. Traditional connector structures often rely solely on simple plug-in connections, which reveal many obvious shortcomings when faced with complex operating environments.
[0003] The existing technology has the following defects or problems: Existing technology, publication number CN222365848U, discloses a connector structure with a locking mechanism, including: a base and a plug portion disposed at the lower end of the base; a locking piece is formed on the base, one end of the locking piece is fixedly engaged with the base, and the other end extends to the plug portion, forming an elastic engagement between the locking piece and the base; a clearance fit exists between the locking piece and the plug portion, forming a mounting locking groove for inserting a circuit board; the clearance height of the mounting locking groove is less than the thickness of the circuit board. By directly setting the locking piece and sliding locking block on the connector base, a self-locking structure achieves a locking engagement with the circuit board; it is suitable for small-space environments where locking by hand or tools is not possible, and the operation and installation steps are simple and the operation time is short.
[0004] During use, the aforementioned equipment, with one end of the locking tab fixed to the base and the other end extending to the insertion part to form an elastic fit, may experience fatigue and breakage at the connection point due to prolonged use or significant external force, leading to cracks or even complete breakage and affecting the connector's normal locking function. However, in existing technologies, some connectors with locking structures lack a secondary locking component, which can cause gaps or unstable contact in the electrical connection between the circuit board and the connector. This results in increased resistance between the connectors, signal attenuation or distortion, thus affecting the electrical performance of the equipment.
[0005] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a connector structure with a locking mechanism, which solves the current problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a connector structure with a locking mechanism, comprising a base, a first connector fixedly connected to the right side of the base, openings at the upper and lower ends of the first connector, protrusions slidably connected inside the two openings, multiple springs fixedly connected to adjacent sides of the two protrusions, a second connector disposed outside the first connector, through grooves at the upper and lower ends of the second connector, pressing blocks slidably connected inside the two through grooves, limiting plates fixedly connected to the outside of the two pressing blocks, connecting strips fixedly connected to the front and rear interiors of the first connector, limiting grooves opened on the front and rear sides of the first connector, positioning plates fixedly connected to the front and rear sides of the second connector, and a secondary locking assembly disposed inside the first connector.
[0008] As a preferred embodiment of this utility model, the secondary locking assembly includes a sleeve and a insert rod. The sleeve has through holes on its front and rear sides, and a sliding rod is slidably connected inside each of the two through holes. A locking block is fixedly connected to the adjacent side of each of the two sliding rods. A return spring is sleeved on the outside of each of the two sliding rods. A positioning rod is fixedly connected inside the insert rod. A fixing block is fixedly connected to the left side of the positioning rod, and a movable block is slidably connected to the right side of the positioning rod. The outside of the fixing block is in contact with the adjacent side of the two locking blocks.
[0009] As a preferred embodiment of this utility model, the inner wall of the second connector is in contact with the outer side of the base, and the adjacent side of the two pressing blocks is in contact with the distant side of the two protrusions respectively.
[0010] As a preferred embodiment of this utility model, the two protrusions are slidably connected to the upper and lower inner walls of the second connector, respectively, and the two pressing blocks are slidably connected to the upper and lower inner walls of the second connector.
[0011] As a preferred embodiment of this utility model, the outer sides of the two positioning plates are slidably connected to the inner walls of the limiting grooves, and the adjacent sides of the plurality of springs are fixedly connected to the inner walls of the two openings.
[0012] As a preferred embodiment of this utility model, the front and rear ends of the sleeve are fixedly connected to the right sides of the two connecting strips, and the outer side of the fixing block is in contact with the inner wall of the sleeve.
[0013] As a preferred embodiment of this utility model, the right side of the insertion rod is fixedly connected to the left inner wall of the second connector, and the outer sides of the two locking blocks are in contact with the outer side of the movable block.
[0014] Compared with the prior art, the present invention provides a connector structure with a locking mechanism, which has the following advantages:
[0015] 1. A connector structure with a locking mechanism, comprising a first connector, a second connector, a protrusion, an opening, and a spring, wherein when the first connector and the second connector are connected, the second connector aligns with and moves closer to the first connector, and the inner wall of the second connector presses against the protrusion, causing the protrusion to slide into the opening, while the spring is compressed; when the protrusion slides to the position corresponding to the protrusion on the inner wall of the second connector, the spring restores its elastic deformation, pops the protrusion out, and makes it lock into the inner wall of the second connector, thereby achieving the initial connection and locking of the first connector and the second connector, thus effectively resisting vibration and impact, greatly reducing the risk of loosening or falling off the connection, and ensuring the continuous stability of the circuit connection.
[0016] 2. A connector structure with a locking mechanism, comprising a plug rod, a sleeve, a second connector, a fixed block, a movable block, a sliding rod, a locking block, a return spring, and a positioning rod. The plug rod is inserted into the sleeve as the second connector approaches. The fixed block on the left side of the plug rod enters the sleeve along with the plug rod. As the plug rod continues to penetrate the sleeve, the movable block gradually contacts and compresses the locking block inside the sleeve. The locking block drives the sliding rod to slide within the through hole, simultaneously compressing the return spring. When the movable block completely passes the locking block, the return spring recovers its elastic deformation, pushing the sliding rod and the locking block to reset. At this point, the locking block is locked on one side of the movable block, thus locking the movable block. The positioning rod and the plug rod further lock the first and second connectors, achieving a secondary locking function. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the first connector structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the second connector structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the sleeve structure of this utility model.
[0021] In the diagram: 1. Base; 2. First connector; 3. Opening; 4. Protrusion; 5. Spring; 6. Second connector; 7. Through groove; 8. Pressing block; 9. Limiting plate; 10. Connecting strip; 11. Limiting groove; 12. Sleeve; 13. Through hole; 14. Sliding rod; 15. Locking block; 16. Return spring; 17. Insert rod; 18. Positioning rod; 19. Fixed block; 20. Movable block; 21. Positioning plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0023] Example 1
[0024] Please see Figure 1-4 In this embodiment: a connector structure with a locking mechanism includes a base 1, a first connector 2 fixedly connected to the right side of the base 1, openings 3 at the upper and lower ends of the first connector 2, protrusions 4 slidably connected inside the two openings 3, and protrusions 4 slidably connected to the upper and lower inner walls of the two protrusions 4, respectively. Multiple springs 5 are fixedly connected to the adjacent sides of the two protrusions 4, and the adjacent sides of the multiple springs 5 are fixedly connected to the inner walls of the two openings 3. A second connector 6 is disposed outside the first connector 2, and the inner wall of the second connector 6 contacts the outside of the base 1. Openings 3 at the upper and lower ends of the second connector 6 are respectively provided. The two through slots 7 are slidably connected to the interior of each of the two through slots 7. The exterior of the two pressing blocks 8 is slidably connected to the upper and lower inner walls of the second connector 6. The adjacent side of the two pressing blocks 8 contacts the distant side of the two protrusions 4 respectively. The exterior of the two pressing blocks 8 is fixedly connected to the limiting plates 9 respectively. The front and rear interiors of the first connector 2 are fixedly connected to the connecting strips 10 respectively. The front and rear sides of the first connector 2 are respectively provided with limiting grooves 11. The front and rear sides of the second connector 6 are respectively fixedly connected to the interior of the limiting grooves 11 respectively. The exterior of the two positioning plates 21 is slidably connected to the inner wall of the limiting grooves 11 respectively. The interior of the first connector 2 is provided with a secondary locking assembly.
[0025] In this embodiment, when it is necessary to connect the first connector 2 and the second connector 6, the second connector 6 is aligned with the first connector 2 and moved closer to it. During this process, the inner wall of the second connector 6 will press against the protrusion 4, causing the protrusion 4 to slide into the opening 3, while the spring 5 is compressed. When the protrusion 4 slides to the position corresponding to the protrusion 4 on the inner wall of the second connector 6, the spring 5 restores its elastic deformation, popping the protrusion 4 out and making it snap into the inner wall of the second connector 6, thereby achieving the initial connection and locking of the first connector 2 and the second connector 6. During the connection process, the positioning plates 21 inside the front and rear sides of the second connector 6 will slide into the limiting grooves 11 opened on the front and rear sides of the first connector 2. The limiting grooves 11 and the positioning plates 21 The positioning and guiding functions of the connectors ensure accurate docking of the first connector 2 and the second connector 6, while also enhancing the stability of the connection and preventing the connectors from wobbling back and forth during use. When it is necessary to separate the first connector 2 and the second connector 6, press the pressing blocks 8 in the through grooves 7 at both ends of the second connector 6. The pressing blocks 8 slide in the through grooves 7, and the side closest to them will squeeze the protrusion 4, causing the protrusion 4 to overcome the elastic force of the spring 5 and slide into the opening 3. When the protrusion 4 is completely separated from the inner wall of the second connector 6, the second connector 6 can be pulled out from the first connector 2, thus separating the connectors. The function of the limiting plate 9 is to prevent the pressing blocks 8 from sliding out of the through grooves 7, ensuring the normal use of the pressing blocks 8.
[0026] Example 2
[0027] like Figure 1 - Figure 4 As shown, the secondary locking assembly includes a sleeve 12 and a rod 17. The front and rear ends of the sleeve 12 are fixedly connected to the right sides of the two connecting bars 10. Through holes 13 are opened on the front and rear sides of the sleeve 12. Sliding rods 14 are slidably connected inside the two through holes 13. Locking blocks 15 are fixedly connected to the adjacent sides of the two sliding rods 14. The outer sides of the two locking blocks 15 are in contact with the outer sides of the movable block 20. Return springs 16 are sleeved on the outer sides of the two sliding rods 14. A positioning rod 18 is fixedly connected inside the rod 17. The right side of the rod 17 is fixedly connected to the left inner wall of the second connector 6. A fixing block 19 is fixedly connected to the left side of the positioning rod 18. The outer side of the fixing block 19 is in contact with the inner wall of the sleeve 12. The right side of the positioning rod 18 is slidably connected to the movable block 20. The outer side of the fixing block 19 is in contact with the adjacent sides of the two locking blocks 15.
[0028] In this embodiment, after the first connector 2 and the second connector 6 are initially connected, the insertion rod 17 is inserted into the sleeve 12 as the second connector 6 approaches. The right side of the insertion rod 17 is fixed to the inner wall of the left side of the second connector 6. The positioning rod 18 is located inside the insertion rod 17. The fixing block 19 on its left side will enter the sleeve 12 together with the insertion rod 17, and the outside of the fixing block 19 will contact the inner wall of the sleeve 12, playing a preliminary positioning role. As the insertion rod 17 continues to be inserted into the sleeve 12, the movable block 20 slidably connected to the right side of the positioning rod 18 will gradually contact the locking block 15 inside the sleeve 12. Since the movable block 20 can slide on the positioning rod 18, it will exert a squeezing effect on the locking block 15 when it comes into contact with the locking block 15. The locking block 15 is fixedly connected to the sliding rod 14, and the sliding rod 14 slides in the through holes 13 on both sides of the sleeve 12. When the movable block 20 squeezes the locking block 15, the locking block 15 will drive the sliding rod 14 to slide in the through hole 13, and at the same time compress the return spring 16. When the movable block 20 completely passes the locking block 15, the return spring 16 restores its elastic deformation, pushes the sliding rod 14 and the locking block 15 to reset. At this time, the locking block 15 is stuck on one side of the movable block 20, locking the movable block 20. Then, the first connector 2 and the second connector 6 are further locked by the positioning rod 18 and the insertion rod 17, realizing the secondary locking function.
[0029] The working principle and usage process of this utility model are as follows: When it is necessary to connect the first connector 2 and the second connector 6, align the second connector 6 with the first connector 2 and move it closer. During this process, the inner wall of the second connector 6 will press against the protrusion 4, causing the protrusion 4 to slide into the opening 3, while the spring 5 is compressed. When the protrusion 4 slides to the position corresponding to the protrusion 4 on the inner wall of the second connector 6, the spring 5 restores its elastic deformation, popping the protrusion 4 out and making it snap into the inner wall of the second connector 6, thereby achieving the initial connection and locking of the first connector 2 and the second connector 6. At the same time, the insertion rod 17 is inserted into the sleeve 12 as the second connector 6 moves closer, and the fixing block 19 on the left side of the insertion rod 17 will move accordingly. Insert rod 17 enters sleeve 12 together, serving as a preliminary positioning function. As insert rod 17 continues to penetrate deeper into sleeve 12, movable block 20 gradually contacts locking block 15 inside sleeve 12, exerting a squeezing effect on locking block 15. When movable block 20 squeezes locking block 15, locking block 15 drives sliding rod 14 to slide within through hole 13, while simultaneously compressing return spring 16. When movable block 20 completely passes locking block 15, return spring 16 restores its elastic deformation, pushing sliding rod 14 and locking block 15 to reset. At this time, locking block 15 is stuck on one side of movable block 20, locking movable block 20. Then, the positioning rod 18 and insert rod 17 further lock the first connector 2 and the second connector 6, achieving a secondary locking function.
[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A connector structure with a locking mechanism, characterized in that: The device includes a base (1), a first connector (2) fixedly connected to the right side of the base (1), an opening (3) is provided at the upper and lower ends of the first connector (2), a protrusion (4) is slidably connected inside the two openings (3), a plurality of springs (5) are fixedly connected to the adjacent side of the two protrusions (4), a second connector (6) is provided outside the first connector (2), a through groove (7) is provided at the upper and lower ends of the second connector (6), a pressing block (8) is slidably connected inside the two through grooves (7), a limiting plate (9) is fixedly connected to the outside of the two pressing blocks (8), a connecting strip (10) is fixedly connected to the front and rear interiors of the first connector (2), a limiting groove (11) is provided on the front and rear sides of the first connector (2), a positioning plate (21) is fixedly connected to the front and rear sides of the second connector (6), and a secondary locking assembly is provided inside the first connector (2).
2. The connector structure with a locking mechanism according to claim 1, characterized in that: The secondary locking assembly includes a sleeve (12) and a plug rod (17). The sleeve (12) has through holes (13) on its front and rear sides respectively. Sliding rods (14) are slidably connected inside the two through holes (13). Locking blocks (15) are fixedly connected to the adjacent sides of the two sliding rods (14). Return springs (16) are sleeved on the outside of the two sliding rods (14). A positioning rod (18) is fixedly connected inside the plug rod (17). A fixing block (19) is fixedly connected to the left side of the positioning rod (18). A movable block (20) is slidably connected to the right side of the positioning rod (18). The outside of the fixing block (19) is in contact with the adjacent sides of the two locking blocks (15).
3. The connector structure with a locking mechanism according to claim 1, characterized in that: The inner wall of the second connector (6) is in contact with the outside of the base (1), and the adjacent sides of the two pressing blocks (8) are in contact with the distant sides of the two protrusions (4).
4. The connector structure with a locking mechanism according to claim 1, characterized in that: The two protrusions (4) are slidably connected to the upper and lower inner walls of the second connector (6), respectively, and the two pressing blocks (8) are slidably connected to the upper and lower inner walls of the second connector (6).
5. A connector structure with a locking mechanism according to claim 1, characterized in that: The two positioning plates (21) are slidably connected to the inner wall of the limiting groove (11) respectively, and the adjacent sides of the plurality of springs (5) are fixedly connected to the inner wall of the two openings (3).
6. A connector structure with a locking mechanism according to claim 2, characterized in that: The front and rear ends of the sleeve (12) are fixedly connected to the right side of the two connecting strips (10), and the outside of the fixing block (19) is in contact with the inner wall of the sleeve (12).
7. A connector structure with a locking mechanism according to claim 2, characterized in that: The right side of the insertion rod (17) is fixedly connected to the left inner wall of the second connector (6), and the outside of the two locking blocks (15) is in contact with the outside of the movable block (20).