Pulling line power bank with self-locking structure

Abstract

The utility model relates to a kind of pull-out line power bank with self-locking structure, including shell and charging cable, winding mechanism and battery are arranged in shell, charging cable is set in shell by winding mechanism telescopic, and charging cable is electrically connected battery, the outside of shell is provided with cable buckle and lock catch, charging cable is movably arranged on cable buckle, and winding mechanism pulls charging cable to make its head press on cable buckle, lock catch is slidably arranged on shell, by sliding lock catch, lock catch can be locked by winding mechanism and be locked.The utility model provides a kind of pull-out line power bank with self-locking structure, user can flexibly adjust the length of hanging rope according to actual needs;And by the cooperation of cable buckle and lock catch, the cable pulled out can form a stable loop, and be used as a hanging rope, realizing the integration of charging cable and hanging rope function, user does not need to carry hanging rope additionally, significantly improve the portability and use convenience of product.

Description

Technical Field

[0001] This utility model belongs to the field of mobile power technology, and specifically relates to a pull-out power bank with a self-locking structure. Background Technology

[0002] With the widespread use of mobile smart devices, power banks have become an essential accessory for daily travel. To improve portability and prevent users from forgetting to bring their charging cables, some power banks with integrated charging cables have appeared on the market. One common form uses a retractable cable structure, which typically includes a reel housed inside the power bank casing and a retraction mechanism. The cable is wound on the reel, and users can pull it out from inside the power bank for use. After use, the retraction mechanism drives the reel to rotate in the opposite direction, automatically retracting the cable.

[0003] However, existing power banks with retractable cables typically lack a locking mechanism, or can only lock at two extreme positions: fully extended or fully retracted. When the cable is partially extended, the spring force of the retraction mechanism remains on the cable, preventing users from fixing it to any desired intermediate length. Furthermore, the function of this pull-out cable is very limited, serving only as a charging device. For convenient portability, users still need to add a lanyard, which not only increases the cost of accessories but also contradicts the trend towards integrated and minimalist design, causing inconvenience to users.

[0004] For example, Chinese utility model patent CN205791683U discloses a mobile power supply with a built-in retractable mobile terminal charging cable and charging interface, which is a common type of retractable cable. Utility Model Content

[0005] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing a pull-out cable power bank with a self-locking structure, which aims to solve the technical problem that the existing pull-out cable power banks have a single function and cannot be reliably fixed at any length.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pull-out power bank with a self-locking structure includes a shell and a charging cable. The shell contains a winding mechanism and a battery. The charging cable is extended and retracted within the shell via the winding mechanism and is electrically connected to the battery. The outer side of the shell has a cable clip and a locking element. The charging cable is movably threaded through the cable clip, and the winding mechanism pulls the charging cable so that its head presses against the cable clip. The locking element is slidably mounted on the shell, and by sliding the locking element, it can be locked against the winding mechanism.

[0007] To better realize this utility model, the above structure is further optimized. The winding mechanism includes a turntable that is rotatably connected to the outer shell. A spring is also connected between the turntable and the outer shell. The spring drives the turntable to rotate so that the charging cable is wound on the turntable.

[0008] To better realize this utility model, the above structure is further optimized by providing a slot on the turntable, which can be inserted into the slot by sliding locking fastener to lock the turntable.

[0009] To better realize this utility model, the above structure is further optimized by providing multiple slots along the circumferential direction on the turntable.

[0010] To better realize this utility model, the above structure is further optimized by providing a conical soft rubber pad at the bottom of the locking component.

[0011] To better realize this utility model, further optimization is made to the above structure. The cable clip has an "n" shaped structure. The bottom two ends of the cable clip are fixedly connected to the outer shell with screws. A channel is formed between the cable clip and the outer shell to accommodate the charging cable. The head size of the charging cable is larger than the size of the channel.

[0012] To better realize this utility model, the above structure is further optimized, and the charging cable is a flat strip structure.

[0013] To better realize this utility model, the above structure is further optimized by providing a power indicator light on the outer casing.

[0014] Compared with the prior art, this utility model has the following advantages: The pull-out power bank with a self-locking structure provided by this utility model can reliably fix the position during the extension of the cable, and users can flexibly adjust the length of the lanyard according to actual needs. Furthermore, through the cooperation of the cable clip and locking fastener, the pulled-out cable can form a stable loop, which also serves as a lanyard, realizing the integration of charging cable and lanyard functions. Users do not need to carry an additional lanyard, significantly improving the portability and ease of use of the product. In addition, the locking solution provided by this application has a simple and compact structure, which is easy to integrate into the small power bank, and can be used with different types of existing winding mechanisms, showing good compatibility. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of this utility model; Figure 3 This is a schematic diagram showing the cooperation between the locking element and the winding mechanism in this utility model; Figure 4 This is a schematic diagram of the bottom structure of the locking component in this utility model.

[0017] In the picture: 1-Outer shell, 2-Charging cable, 3-Battery, 4-Cable clip, 5-Locking fastener, 501-Soft rubber pad, 6-Turntable, 601-Card slot, 7-Curved spring, 8-Power indicator light. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Please refer to Figures 1-4 This utility model provides a pull-out power bank with a self-locking structure, comprising a shell 1 and a charging cable 2. The shell 1 contains a winding mechanism and a battery 3. The charging cable 2 is telescopically mounted inside the shell 1 via the winding mechanism and is electrically connected to the battery. The outer side of the shell 1 is provided with a cable clip 4 and a locking element 5. The charging cable 2 is movably threaded through the cable clip 4, and the winding mechanism pulls the charging cable 2 so that its head presses against the cable clip 4. The locking element 5 is slidably mounted on the shell 1, and by sliding the locking element 5, it can be locked against the winding mechanism. Through the cooperation of the cable clip 4 and the locking element 5, the cable clip 4 holds the head of the charging cable 2, and the locking element 5 controls the extension length of the charging cable 2, allowing the pulled-out charging cable 2 to form a stable loop, which also functions as a lanyard. This integrates the functions of a charging cable and a lanyard, eliminating the need for users to carry an additional lanyard and significantly improving the product's portability and ease of use.

[0022] like Figure 3As shown, the winding mechanism includes a turntable 6 rotatably connected to the outer casing 1. A spring 7 is also connected between the turntable 6 and the outer casing 1. The spring 7 drives the turntable 6 to rotate, causing the charging cable 2 to wind around the turntable 6. Initially, the spring 7 is slightly tightened, storing a certain amount of elastic potential energy, so that the charging cable 2 is neatly wound around the turntable 6 and kept in a relatively fixed position. When the charging cable 2 is pulled outward, the spring 7 will tighten further, storing more elastic potential energy, providing a greater driving force for the subsequent automatic retraction of the charging cable 2. In this embodiment, since the charging cable 2 rotates with the turntable 6 during rotation, to avoid tangling, the tail of the charging cable 2 passes through the hole in the center of the turntable 6, and the circuit can be connected through a brush. Of course, other connection methods in the prior art can also be selected, and no limitation is made here. Moreover, multiple slots 601 are provided on the turntable 6 along the circumferential direction. The sliding locking fastener 5 can be inserted into the slot 601 to lock the turntable 6, thereby realizing the length adjustment of the charging cable 2 on the turntable 6. The bottom of the locking component 5 is provided with a conical soft rubber pad 501, which allows the locking component 5 to smoothly engage with the slot 601. The slot 601 is coated with a special coating to increase friction and lock the turntable 6 to stop rotating. When the locking component 5 is pushed out of the slot 601, the spring 7 begins to release its elastic potential energy. During this process, the elastic force drives the turntable 6 to rotate in the opposite direction, causing the charging cable 2 to retract to its original position.

[0023] like Figure 2 As shown, in this embodiment, the cable clip 4 is designed as an "n" shaped structure. The bottom two ends of the cable clip 4 are fixedly connected to the outer shell 1 with screws, which facilitates future maintenance and replacement. A channel is formed between the cable clip 4 and the outer shell 1 to accommodate the charging cable 2. The head size of the charging cable 2 is larger than the size of the channel, so that the head of the charging cable 2 cannot pass through the channel.

[0024] Furthermore, the charging cable 2 adopts a flat, elongated structure, allowing it to be rolled up more easily. The charging cable 2 also uses a wire sheath material with higher toughness and fatigue strength, which can improve its service life. A power indicator light 8 is provided on the outer casing 1 to display the remaining power of the battery 3.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A pull-out power bank with a self-locking structure, comprising a housing and a charging cable, wherein a winding mechanism and a battery are disposed inside the housing, the charging cable is retractably disposed within the housing via the winding mechanism, and the charging cable is electrically connected to the battery, characterized in that: The outer side of the housing is provided with a cable clip and a locking element. The charging cable is movably threaded through the cable clip, and the winding mechanism pulls the charging cable so that its head presses against the cable clip. The locking element is slidably disposed on the housing. By sliding the locking element, the locking element can be pressed against the winding mechanism to lock it.

2. A pull-out power bank with a self-locking structure according to claim 1, characterized in that: The winding mechanism includes a turntable rotatably connected to the outer casing, and a spring is connected between the turntable and the outer casing. The spring drives the turntable to rotate so that the charging cable is wound around the turntable.

3. A pull-out power bank with a self-locking structure according to claim 2, characterized in that: The turntable is provided with a slot, and the turntable can be locked by sliding the locking fastener into the slot.

4. A pull-out power bank with a self-locking structure according to claim 3, characterized in that: The turntable has multiple slots arranged along its circumference.

5. A pull-out power bank with a self-locking structure according to claim 4, characterized in that: The bottom of the locking component is provided with a conical soft rubber pad.

6. A pull-out power bank with a self-locking structure according to any one of claims 1-5, characterized in that: The cable clip has an "n" shaped structure. The bottom two ends of the cable clip are fixedly connected to the outer shell with screws. A channel is formed between the cable clip and the outer shell to accommodate the charging cable. The head size of the charging cable is larger than the size of the channel.

7. A pull-out power bank with a self-locking structure according to claim 6, characterized in that: The charging cable has a flat, elongated structure.

8. A pull-out power bank with a self-locking structure according to claim 1, characterized in that: The outer casing is equipped with a power indicator light.

Images