Connector with pre-lock function

Abstract

The utility model discloses a kind of connectors with pre-lock function, belong to connector field. Including charging seat;Plug-in assembly, it plugs in charging seat, plug-in assembly includes plug-in assembly including plug-in in charging seat, plug-in is integrally provided with sealing cover, opening groove is opened on sealing cover;Pre-lock assembly, it is set on charging seat, pre-lock assembly includes the mounting seat installed on charging seat, cover plate is fixed on mounting seat, mounting seat has inner recess, locking portion for being connected with the locking of charging seat plug-in is arranged in inner recess, drive portion for driving locking portion is arranged in mounting seat, the surface of mounting seat is provided with the limiting portion for limiting the rotation angle of drive portion. A kind of connector with pre-lock function of the application, through pre-lock assembly locking portion and plug-in stable connection, keep charging stable, and physical protection reduces stolen risk, improve use experience.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connector with a pre-locking function. Background Technology

[0002] In the daily use of electric bicycles, the charging process is the core guarantee for maintaining the vehicle's range, directly affecting the user's travel efficiency and experience, and is an indispensable key step to ensure its normal operation. Whether for commuting, short trips, or goods delivery, the reliable range of electric bicycles depends on a stable and efficient charging process. Currently, most electric bicycle chargers and the charging ports on the vehicle use connector structures that continue the traditional simple plug-in design. This type of structure usually achieves electrical connection through the metal contacts at the end of the plug and the corresponding contacts inside the charging port, relying on the insertion and removal of the plastic shell for initial positioning.

[0003] In practical use, there are shortcomings. During charging, electric bicycles may be in various complex environments, such as vibrations from passing vehicles when parked on the roadside, accidental bumps from pedestrians, or slight shaking of the vehicle itself when charging on uneven ground. Since most existing connectors rely solely on a simple plug-and-socket connection, these external factors can easily cause the charger plug to loosen or even detach from the charging port, affecting charging efficiency. Furthermore, with the increasing demand for outdoor charging, many users choose to charge their electric bicycles in public outdoor areas. However, because existing connectors lack dedicated protective measures, chargers are susceptible to theft, affecting the normal use of electric bicycles and causing inconvenience to users. Therefore, a connector with a pre-locking function is needed.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] This utility model provides a connector with a pre-locking function to solve the problems of existing connectors, which are easily loosened and detached under vibration, touch, etc. due to simple plugging, affecting charging, and are easily stolen outdoors without protection, causing inconvenience in use.

[0006] This utility model embodiment adopts the following technical solution: a connector with a pre-locking function. It mainly includes a charging base; a plug-in assembly that plugs into the charging base, the plug-in assembly including a plug inserted into the charging base, the plug having an integrally formed sealing cover with an opening groove; and a pre-locking assembly disposed on the charging base, the pre-locking assembly including a mounting base mounted on the charging base, a cover plate fixed to the mounting base, an inner groove within the mounting base, a locking part within the inner groove for locking the connection with the charging base plug, a driving part within the mounting base for driving the locking part, and a limiting part on the surface of the mounting base for limiting the rotation angle of the driving part.

[0007] Furthermore, the charging dock has an interface, and there is a plug-in groove between the charging dock's cover and the interface. The charging dock is integrally provided with a protrusion, which is a raised structure integrally formed on the inner side of the charging dock's cover, and a part of the protrusion extends into the plug-in groove.

[0008] Furthermore, the locking part includes a worm gear with a bearing installed in the inner groove. The worm gear has a disc-shaped gear structure and a drive shaft at its center. The drive shaft is a rod-shaped structure that passes through the center of the worm gear. One end of the drive shaft passes through the protrusion and the charging base in sequence and extends into the insertion groove. A hook is installed at one end of the drive shaft. The hook is a hook-shaped adapter structure at the end of the drive shaft. A locking post adapted to the hook is fixed in the opening groove. The locking post consists of anti-detachment blocks at both ends and a central rod.

[0009] Furthermore, the drive unit includes a worm gear with bearings mounted in the mounting base. The worm gear has a rod-shaped gear structure and meshes with a worm wheel to transmit torque. Both ends of the worm gear pass through the mounting base, and locking grooves are provided at both ends of the worm gear. The locking grooves are cross-grooves adapted to the operating components.

[0010] Furthermore, the limiting part includes a fixing sleeve fixed to the surface of the mounting base. The fixing sleeve is an annular structure sleeved on the worm gear. The fixing sleeve is coaxially sleeved on the worm gear. A limiting rod is installed on one end surface of the worm gear. A limiting block extends outward from the surface of the fixing sleeve. The limiting block is a protrusion on the side wall of the fixing sleeve. An anti-slip pad is provided at the contact position between the limiting rod and the fixing sleeve.

[0011] Furthermore, the cover plate has a fan-shaped recessed groove, which is a fan-shaped area that is recessed downward on the surface of the cover plate. One end of the drive shaft passes through the cover plate and is provided with a locking assembly. The locking assembly includes a rotating wheel fixed to one end of the drive shaft. The rotating wheel is a disc-shaped operating component at the top of the drive shaft. The rotating wheel is coaxially fixed with the drive shaft. A rotating rod is fixed to the side of the rotating wheel. The rotating rod is a rod-shaped structure that extends outward from the edge of the rotating wheel. The surface of the rotating rod has a silicone sleeve. Two sets of protruding posts with spacing are provided on the cover plate along the circumferential direction.

[0012] Furthermore, there is a distance between the two sides of the sinking trough and the corresponding adjacent protruding column for placing the rotating rod.

[0013] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0014] A connector with a pre-locking function forms a stable connection between the plug and the pre-locking component, replacing the traditional plug-and-play method. This prevents the plug from becoming loose or falling off when the electric vehicle encounters complex environmental disturbances such as vibrations from passing vehicles, pedestrian contact, or slight shaking of the vehicle body, ensuring a continuous and stable charging process. At the same time, the physical protection provided by the pre-locking structure reduces the risk of charger theft when charging in public outdoor areas, reduces inconvenience caused by lost equipment, meets diverse user charging needs, and improves the user experience. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is an overall schematic diagram of a connector with a pre-locking function according to this application;

[0018] Figure 2 for Figure 1 Exploded view;

[0019] Figure 3 for Figure 2 A schematic diagram of the bottom structure;

[0020] Figure 4 for Figure 2 A partial structural diagram;

[0021] Figure 5 for Figure 4 Enlarged view of point A;

[0022] Figure label:

[0023] 1. Charging component; 11. Charging base; 12. Interface; 13. Plug slot; 14. Protrusion; 2. Plug assembly; 21. Plug; 22. Sealing cover; 221. Opening slot; 222. Locking post; 23. Connecting wire; 24. Connector; 3. Pre-locking assembly; 31. Mounting base; 32. Connecting rod; 33. Worm gear; 34. Drive shaft; 35. Worm; 351. Locking slot; 36. Fixing sleeve; 37. Limiting block; 38. Limiting rod; 39. Hook; 311. Cover plate; 312. Sinking groove; 4. Locking assembly; 41. Rotating wheel; 42. Rotating rod; 43. Protruding post. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0026] Example 1:

[0027] Reference Figures 1-4 As shown, this utility model embodiment provides a connector with a pre-locking function, including a charging component 1. The charging component 1 includes a charging base 11, and the charging base 11 has an interface 12. The interface 12 is a slot structure inside the cavity of the charging base 11 for electrical connection with subsequent components. At the same time, there is a plug groove 13 between the cover of the charging base 11 and the interface 12. The plug groove 13 is an annular groove inside the charging base 11 surrounding the interface 12. A protrusion 14 is integrally provided on the charging base 11. The protrusion 14 is a raised structure integrally formed on the inner side of the cover of the charging base 11. A part of the protrusion 14 extends into the plug groove 13, forming a limiting and locking association structure for the plugging action.

[0028] A plug-in assembly 2 is connected to the interface 12. The plug-in assembly 2 is a plug-in part for connecting the battery-powered vehicle for charging. The plug-in assembly 2 includes a plug 21 that is plugged into the interface 12. The plug 21 is a core structure with a connector 24. The plug 21 is plugged into the interface 12 through the connector 24 to achieve charging. A sealing cover 22 is integrally provided on the plug 21. The sealing cover 22 is an annular cover that is sleeved on the outside of the plug 21 and is integral with the plug 21. The sealing cover 22 is adapted to be inserted into the plug groove 13 simultaneously when the connector 24 is inserted into the interface 12, forming a sealed enclosure of the interface 12.

[0029] Meanwhile, an opening 221 larger than the size of the protrusion 14 is provided on the sealing cover 22. The opening 221 is a notch opened in the side wall of the sealing cover 22 to avoid the protrusion 14 during the insertion process and to cooperate with the protrusion 14 to realize the pre-locking function. In addition, one end of the plug 21 has a connecting wire 23, which is a power supply cable extending from the tail of the plug 21 to realize power transmission.

[0030] A pre-locking assembly 3 for locking the connection with the plug 21 is provided on the charging base 11. The pre-locking assembly 3 includes a mounting base 31 fixedly mounted on the protrusion 14 by four sets of connecting rods 32. A cover plate 311 is fixed on the mounting base 31, and the mounting base 31 is the main bearing housing of the pre-locking assembly 3. The mounting base 31 has an inner groove, and a locking part is provided in the inner groove. The locking part includes a worm gear 33 with a bearing installed in the inner groove. The worm gear 33 is a disc gear structure with a drive shaft 34 at its center. The drive shaft 34 is a rod-shaped structure that passes through the center of the worm gear 33. One end of the drive shaft 34 passes through the protrusion 14 and the charging base 11 in sequence and extends into the insertion groove 13. A hook part 39 is fixedly installed at one end of the drive shaft 34. The hook part 39 is a hook-shaped / adapter structure at the end of the drive shaft 34.

[0031] Correspondingly, a locking post 222 adapted to the hook part 39 is fixed in the opening slot 221. The locking post 222 consists of anti-detachment blocks at both ends and a central rod, which can be understood as an "I" shaped structure. The anti-detachment blocks at both ends are used to limit the displacement of the hook part 39. The hook part 39 is adapted to rotate with the drive shaft 34 to hook between the anti-detachment blocks at both ends, forming a locking structure for connecting the plug 21 and the charging base 11. When the plug 21 is inserted into the charging base 11 and the sealing cover 22 enters the insertion slot 13, the drive shaft 34 rotates to drive the hook part 39 to rotate, which is engaged in the gap between the anti-detachment blocks at both ends of the locking post 222 to achieve mechanical locking.

[0032] A drive unit is provided within the mounting base 31 to drive the worm gear 33 to rotate, thereby controlling the hook holding part 39 to lock / unlock. This drive unit includes a worm 35 with bearings mounted within the mounting base 31. The worm 35 has a rod-gear structure and meshes with the worm gear 33 to transmit torque. Both ends of the worm 35 penetrate the mounting base 31, and locking grooves 351 are provided at both ends of the worm 35. The locking grooves 351 can be cross grooves, square grooves, or other structures adapted to the operating components. Figure 5 The image only shows the groove shape at the end of the worm gear 35 for inserting the drive component;

[0033] The user can carry a connector, such as a rod that fits a cross-shaped or square groove, or a key-shaped tool that fits into the locking groove 351 to drive the worm gear 35 to rotate. After the connector is inserted into the locking groove 351, rotation will drive the worm gear 35, which in turn drives the drive shaft 34 through the worm wheel 33. For easy carrying, the connector can be a rod structure and can be attached to a keychain as a dedicated unlocking tool. Based on the usage scenario, the operating part is miniaturized and portable, and associated with the electric vehicle key to improve practicality.

[0034] A limiting part is provided on the surface of the mounting base 31 to limit the rotation angle of the worm gear 35, preventing excessive rotation from damaging the components or affecting the locking state. The limiting part includes a fixing sleeve 36 fixed to the surface of the mounting base 31. The fixing sleeve 36 is an annular / cylindrical structure that is sleeved on the worm gear 35 and coaxially sleeved on the worm gear 35, providing radial limiting for the worm gear 35. Furthermore, a limiting rod 38 is fixedly installed on one end surface of the worm gear 35. The limiting rod 38 is a rod-shaped structure extending outward from the end of the worm gear 35. At the same time, a limiting block 37 extends outward from the surface of the fixing sleeve 36. The limiting block 37 is a protrusion on the side wall of the fixing sleeve 36.

[0035] When the worm 35 rotates, the limiting rod 38 rotates with it. When it rotates to contact the limiting block 37, it limits the worm 35 from continuing to rotate, thus physically limiting the rotation angle. When the worm 35 rotates nearly one revolution, the limiting rod 38 touches the limiting block 37, preventing further rotation. At this time, the worm wheel 33 just drives the hook holding part 39 to complete a 90-degree rotation, corresponding to the locking / unlocking position.

[0036] It should be noted that the contact position between the limiting rod 38 and the fixing sleeve 36 is provided with an anti-slip pad, which can be understood as adding anti-slip material to the contact area to lock the limiting rod 38 when it rotates to the designated position, thereby improving the durability of the structure. When the worm 35 rotates to nearly one revolution, according to the transmission ratio of the worm wheel 33 and the worm 35, the worm wheel 33 rotates 90 degrees for every revolution of the worm 35. At this time, the worm wheel 33 rotates exactly 90 degrees, which drives the hook part 39 to rotate 90 degrees counterclockwise through the drive shaft 34. The hook part 39 is then hooked between the anti-detachment blocks at both ends of the locking post 222, forming a locking structure for the connection between the plug 21 and the charging base 11, further preventing the charger from being stolen.

[0037] Example 2:

[0038] To address the issue of users finding it inconvenient to carry connectors, such as Figure 5A partial enlarged view of the pre-locking component 3 shows that a fan-shaped recessed groove 312 is provided on the cover plate 311. The recessed groove 312 is a fan-shaped area that is recessed downward on the surface of the cover plate 311. At the same time, a locking component 4 is provided at one end of the drive shaft 34, which passes through the cover plate 311. The locking component 4 includes a rotating wheel 41 fixed to one end of the drive shaft 34. The rotating wheel 41 is a disc-shaped operating component at the top of the drive shaft 34. The rotating wheel 41 is coaxially fixed with the drive shaft 34 for easy manual operation.

[0039] A rotating rod 42 is fixed to the side of the rotating wheel 41. The rotating rod 42 is a rod-shaped structure extending outward from the edge of the rotating wheel 41. The rotating rod 42 rotates with the rotating wheel 41, and its surface has a silicone sleeve. The silicone sleeve is used to increase friction and prevent slippage. At the same time, two sets of protruding posts 43 with a spacing of 90 degrees are arranged on the cover plate 311 along the circumferential direction. The protruding posts 43 are columnar structures that protrude upward from the surface of the cover plate 311 and are used to cooperate with the rotating rod 42 to achieve angle limiting and position locking.

[0040] It should be noted that there is a spacing between the two sides of the sinkhole 312 and the corresponding adjacent protruding column 43 for placing the rotating rod 42 (from... Figure 5 The layout of the middle cover plate 311 can be understood as the two sides of the fan-shaped sinking groove 312 forming a bayonet space with the adjacent protruding column 43 respectively. The operator can hold the rotating wheel 41 to drive the drive shaft 34 to rotate 90 degrees. During operation, the rotating wheel 41 drives the rotating rod 42 to rotate in the sinking groove 312. At this time, the rotating rod 42 does not contact the bottom of the sinking groove 312 and there is no contact friction until the hook part 39 is hooked between the anti-detachment blocks at both ends of the locking column 222.

[0041] Simultaneously, at this time, the rotating rod 42 is positioned at the distance between the protruding column 43 and one side of the sinking groove 312. After the rotating rod 42 rotates into place, it engages with the gap formed between the protruding column 43 and the side of the sinking groove 312. Since the rotating rod 42 has a silicone sleeve on its surface and is in contact with the surface of the cover plate 311, the contact friction between the surface of the rotating rod 42 and the surface of the cover plate 311, as well as the limiting effect of the protruding column 43 on the rotating rod 42, together fix the position of the drive shaft 34. The dual effect ensures that the drive shaft 34 maintains the locking angle when there is no external force. Locking and limiting can be completed without additional connectors, simplifying the operation process.

[0042] Working principle:

[0043] When using this connector to charge an electric vehicle, first align the plug 21 of the plug assembly 2 with the interface 12 of the charging assembly 1, ensuring that the connector head 24 aligns with the metal contacts of the interface 12. When pushing the plug 21, the sealing cover 22 is simultaneously inserted into the plug slot 13 of the charging base 11 along with the connector head 24. During this process, the opening slot 221 on the sealing cover 22 precisely avoids the protrusion 14 extending into the plug slot 13, ensuring that the plug 21 is smoothly inserted. Once the connector head 24 is fully inserted into the interface 12, an electrical connection is formed, and the charging circuit is initially activated. At this point, the locking pin 222, along with the sealing cover 22, enters the plug slot 13 and is in a ready-to-engage position with the hook portion 39 of the pre-locking assembly 3, completing the mechanical pre-positioning.

[0044] The locking operation can be completed in two ways:

[0045] In Embodiment 1, the user inserts a special connector (such as the adapter rod on a keychain) into the locking groove 351 at the end of the worm gear 35, and rotates the connector to drive the worm gear 35 to rotate. Since the worm gear 35 meshes with the worm wheel 33, the torque is transmitted to the worm wheel 33, causing it to drive the drive shaft 34 to rotate synchronously. When the worm gear 35 rotates nearly one revolution, the limiting rod 38 contacts the limiting block 37 on the fixing sleeve 36, and the anti-slip pad increases the frictional resistance to limit further rotation. At this time, the worm wheel 33 rotates exactly 90 degrees, and the hook part 39 at the end of the drive shaft 34 rotates 90 degrees counterclockwise and engages between the anti-disengagement blocks at both ends of the locking post 222, forming a mechanical lock, and the plug 21 is firmly connected to the charging base 11.

[0046] In the second embodiment, the user directly holds the rotating wheel 41 to drive the rotating rod 42 to rotate. The rotating rod 42 rotates 90 degrees within the fan-shaped sinking groove 312, and moves along the trajectory of the sinking groove 312, driving the drive shaft 34 to rotate synchronously until the rotating rod 42 is engaged in the gap between the protruding post 43 and the side of the sinking groove 312. At this time, the hook part 39 completes a 90-degree rotation with the drive shaft 34 and is hooked onto the locking post 222. The friction between the silicone sleeve and the cover plate 311 and the blocking effect of the protruding post 43 together fix the position of the rotating rod 42, realizing convenient locking without plugs.

[0047] When it is necessary to disconnect charging, the unlocking action is performed in reverse order of the locking process:

[0048] In the first embodiment, the user inserts the connector back into the locking slot 351, rotates the worm gear 35 counterclockwise, the limiting rod 38 disengages from the limiting block 37 and rotates in the opposite direction, the worm wheel 33 drives the drive shaft 34 and the hook part 39 to rotate 90 degrees clockwise, and the hook part 39 disengages from the anti-disengagement block constraint of the locking post 222.

[0049] In the second embodiment, the user overcomes the friction of the silicone sleeve and rotates the rotating rod 42 to disengage it from the gap between the protruding post 43 and the sinking groove 312. The rod rotates 90 degrees in the opposite direction within the sinking groove 312, driving the hook part 39 to separate from the locking post 222.

[0050] After unlocking, the mechanical lock between the plug 21 and the charging base 11 is released, and the user can easily pull out the plug 21. The sealing cover 22 is simultaneously removed from the plug slot 13 along with the plug 21, completing the charging separation. The whole process not only ensures the connection stability and anti-theft during charging, but also improves the flexibility of use through dual operation methods.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A connector having a pre-lock function, characterized by: include Charging stand (11); A plug-in assembly (2) is plugged into the charging base (11). The plug-in assembly (2) includes a plug (21) that is plugged into the charging base (11). A sealing cover (22) is integrally provided on the plug (21). An opening groove (221) is provided on the sealing cover (22). A pre-locking component (3) is disposed on the charging base (11). The pre-locking component (3) includes a mounting base (31) mounted on the charging base (11). A cover plate (311) is fixed on the mounting base (31). The mounting base (31) has an inner groove. A locking part for connecting and locking with the plug (21) of the charging base (11) is disposed in the inner groove. A driving part for driving the locking part is disposed in the mounting base (31). A limiting part for limiting the rotation angle of the driving part is disposed on the surface of the mounting base (31).

2. The connector with pre-lock function according to claim 1, characterized in that: The charging base (11) has an interface (12), and there is a plug groove (13) between the cover of the charging base (11) and the interface (12). The charging base (11) is integrally provided with a protrusion (14), which is a raised structure integrally formed on the inner side of the cover of the charging base (11). A part of the protrusion (14) extends into the plug groove (13).

3. A connector with a pre-locking function according to claim 1, characterized in that: The locking part includes a worm gear (33) with a bearing installed in the inner groove. The worm gear (33) is a disc gear structure. The worm gear (33) has a drive shaft (34) at its center. The drive shaft (34) is a rod-shaped structure that passes through the center of the worm gear (33). One end of the drive shaft (34) passes through the protrusion (14) and the charging base (11) in sequence and extends into the insertion groove (13). One end of the drive shaft (34) is equipped with a hook part (39). The hook part (39) is a hook-shaped adapter structure at the end of the drive shaft (34). A locking post (222) adapted to the hook part (39) is fixed in the opening groove (221). The locking post (222) is composed of anti-detachment blocks at both ends and a rod in the center.

4. A connector with a pre-locking function according to claim 1, characterized in that: The drive unit includes a worm (35) with bearings mounted in the mounting base (31). The worm (35) has a rod-shaped gear structure. The worm (35) meshes with the worm wheel (33) to transmit torque. Both ends of the worm (35) pass through the mounting base (31). Locking grooves (351) are provided at both ends of the worm (35). The locking grooves (351) are cross-shaped grooves adapted to the operating components.

5. A connector with a pre-locking function according to claim 4, characterized in that: The limiting part includes a fixing sleeve (36) fixed to the surface of the mounting base (31). The fixing sleeve (36) is an annular structure sleeved on the worm (35). The fixing sleeve (36) is coaxially sleeved on the worm (35). A limiting rod (38) is installed on one end surface of the worm (35). A limiting block (37) extends outward from the surface of the fixing sleeve (36). The limiting block (37) is a protrusion on the side wall of the fixing sleeve (36). An anti-slip pad is provided at the contact position between the limiting rod (38) and the fixing sleeve (36).

6. A connector with a pre-locking function according to claim 3, characterized in that: The cover plate (311) has a fan-shaped recessed groove (312), which is a fan-shaped area that is recessed downward on the surface of the cover plate (311). One end of the drive shaft (34) passes through the cover plate (311) and is provided with a locking component (4). The locking component (4) includes a rotating wheel (41) fixed to one end of the drive shaft (34). The rotating wheel (41) is a disc-shaped operating component at the top of the drive shaft (34). The rotating wheel (41) is coaxially fixed with the drive shaft (34). A rotating rod (42) is fixed to the side of the rotating wheel (41). The rotating rod (42) is a rod-shaped structure that extends outward from the edge of the rotating wheel (41). The surface of the rotating rod (42) has a silicone sleeve. Two sets of protruding columns (43) with a spacing are provided on the cover plate (311) along the circumferential direction.

7. A connector with a pre-locking function according to claim 6, characterized in that: The two sides of the sinking groove (312) have a spacing between them and the corresponding adjacent protruding column (43) for placing the rotating rod (42).

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