Lithium battery pack fixing band for lithium electric tool

Abstract

The utility model discloses a kind of lithium battery package fixing bandage of lithium electric tool, to overcome the problem of existing lithium electric tool lithium battery package interface gap loose contact in market. The utility model is set up bottom plate by setting bottom plate at the bottom of lithium battery package, and the left front edge of bottom plate is designed to the front baffle for limiting the displacement of lithium battery package, and four independent support foot through holes are designed downward in bottom plate, one pair in front and back, two bandage components set by setting, respectively from the two pairs of through holes designed in the bottom of bottom plate, pass, from the opposite side, the upper end of head battery interface is obliquely wound to the other end of the two bandage components in this side respectively fixed with movable buckle. The utility model solves the problem that existing lithium battery package interface is loose in the use of existing lithium electric tool, and further leads to the problem of poor contact due to the existence of gap.

Description

Technical Field

[0001] This utility model relates to the field of strap technology, specifically to a strap for fixing lithium battery packs in lithium-ion tools. Background Technology

[0002] Today, power tools are indispensable in all industries. Initially, corded power tools entered the market, but with the development of lithium batteries, the limitations of corded power tools in various scenarios became apparent. Lithium battery-powered tools emerged, overcoming the inconvenience of pulling out power cords in some situations, freeing users from the constraints of power cords, and making them much more convenient to use without having to carry around long power cords.

[0003] Lithium-ion battery tools require two parts to function properly: an upper power tool head and a lower lithium-ion battery pack. During use, the battery pack may run out of power, necessitating battery pack replacement. Furthermore, the tool may be used at different angles, creating gaps between the battery connector on the tool head and the battery pack connector, leading to poor contact and a negative user experience.

[0004] When these situations occur, the lithium battery pack of the lithium-ion tool is fine and can be used normally. The worker uses a wide, high-elasticity O-ring from the market, placing one end on the bottom of the lithium battery pack and the other end on the front of the battery interface on the tool head, using the elasticity of the high-elasticity rubber band to fix the loose gap. However, after a period of use, the rubber band will age, lose its elasticity, or break. Utility Model Content

[0005] The purpose of this utility model is to provide a lithium battery pack fixing strap for lithium battery tools to overcome the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lithium battery pack securing strap for a lithium battery tool, comprising a base plate and two strap assemblies;

[0008] The shape of the base plate matches the shape of the bottom of the lithium battery pack, both being elongated. A front baffle extends vertically upwards from the left edge of the elongated base plate, forming an integral structure with the base plate. The bottom of the base plate has four independent elongated raised support feet, corresponding to the four corners on both sides of the long side of the base plate, arranged in two pairs, front and back. Each of the four elongated support feet has a long, narrow through-hole extending along the length of the support foot and running through it. The diameter of the holes in each pair of raised support feet is exactly the same, so each pair can independently pass through the through-hole of one support foot to the through-hole of the other.

[0009] The strap assembly includes a movable buckle and a flexible strap. The movable buckle in the strap assembly consists of a movable buckle base groove and a movable buckle pressing handle. One end of the strap in the strap assembly has a triangular head, and the other end has a flat head. The movable buckle and the strap in the strap assembly are fixedly connected by the flat head of the strap passing through the lower through hole of the movable buckle base groove and overlapping with the strap body on this side.

[0010] Preferably, the shape of the base plate matches the shape of the bottom of the tool lithium battery pack, and is used to support and hold the bottom of the tool lithium battery pack.

[0011] Preferably, a front baffle extends vertically upward from the left edge of the base plate. The extended front baffle is integral with the base plate, and the two form a left inner corner of the base plate, which can fit with the lower left corner of the lithium battery pack. The front baffle is also used to hold the front of the lithium battery pack.

[0012] Preferably, the bottom of the base plate has raised elongated support foot positioning holes at the four corners, with a pair at the front and back. Two straps pass through the two pairs of positioning holes under the base plate, wrap around to the side and be fixed to the movable buckle on this side. This design can effectively position the straps and prevent them from moving back and forth during use.

[0013] Preferably, the strap assembly is fixedly connected by passing one end of the strap flush through the through hole in the slot of the movable buckle base and overlapping with the strap body on this side, and the other end has a triangular head for passing through the through hole of the elongated support foot protruding from the bottom of the base plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model achieves a more adaptable and convenient lithium battery pack fixing strap through the cooperation between the base plate and the two strap components, because the flexibility of the strap can adapt to lithium battery packs of different shapes.

[0016] 2. This utility model uses two strap assemblies that pass through the through holes on each pair of support feet. The front inner fixing strap passes through, then diagonally wraps around the rear top of the head battery interface, and passes through the middle of the front movable buckle for fixation. The rear outer fixing strap passes through, then diagonally wraps around the front top of the head battery interface, and passes through the middle of the rear movable buckle for fixation. Both strap assemblies are diagonally fastened to the installed head battery interface and lithium battery pack, overcoming the defect of gaps and looseness in the lithium battery pack interface. Attached Figure Description

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the strap;

[0018] Figure 2 Schematic diagram of the strap and movable buckle assembly;

[0019] Figure 3 Diagram showing the procedure for placing the straps while the patient is lying on their side;

[0020] Figure 4 Diagram showing the start of operation for the front inner side strap;

[0021] Figure 5 Diagram showing how to press the tension strap;

[0022] Figure 6 Diagram illustrating the operation of the remaining tape triangle head;

[0023] Figure 7 Diagram of the posterior lateral strap operation;

[0024] Figure 8 A 3D diagram showing the lithium battery pack of the lithium-ion battery tool being secured.

[0025] Figure label:

[0026] 1. Base plate; 2. Front inner fixing strap; 3. Rear outer fixing strap; 4. Front movable buckle; 5. Rear movable buckle; 6. Front baffle; 7. Lower fixing point of the movable buckle; 8. Strap flush end; 9. Strap triangular end; 10. Bottom of lithium battery pack; 11. Lower left corner of lithium battery pack; 12. Left inner corner of base plate; 13. Rear upper part of the head battery interface; 14. Front upper part of the head battery interface; 15. Lower pressing handle of movable buckle; 16. Bottom groove of movable buckle; 17. Lower through hole of bottom groove of movable buckle; 18. Movable buckle; 19. Support foot; 20. Strap assembly; 21. Strap. Detailed Implementation

[0027] To facilitate user understanding and operation, the utility model will be further described in detail below with reference to examples and accompanying drawings. However, these embodiments do not limit the present utility model, and structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are all included within the protection scope of the present utility model.

[0028] This utility model discloses a lithium battery pack fixing strap for a lithium battery tool, comprising a base plate 1 and two strap assemblies 20, wherein the two strap assemblies 20 include a front inner fixing strap 2 and a rear outer fixing strap 3, as shown below. Figure 1 , 5 As shown in Figures 7 and 8. The base plate 1 is 65 mm wide and 100 mm long, and is injection molded. The preferred material is ABS plastic, which has good heat resistance and mechanical strength. A front baffle 6 is integrally formed on the left edge of the base plate 1. This front baffle 6 extends upwards perpendicularly to the base plate 1, with a height of 20 mm. This height is less than the vertical distance from the upper surface of the base plate 1 to the front surface of the lithium battery pack. The extended front baffle 6 is integrally formed with the base plate 1, and their connection point forms a left inner corner 12 of the base plate that can fit with the lower left corner 11 of the lithium battery pack. Figure 3 As shown. At the four corners of the bottom of the base plate 1, four elongated supporting feet 19 extend downwards. Each supporting foot 19 is 23 mm long, 15 mm wide, and 8 mm high. Elongated through-holes, 17 mm wide and 5 mm high, are cut inwards from the long sides of the four supporting feet 29, allowing them to fit snugly into a 15 mm wide and 1.5 mm thick strap 21. There are two pairs of through-holes at the top and bottom. These four positioning supporting feet 19 through-holes prevent the strap 21 from moving back and forth during use. Figure 2 , 6 As shown. The strap assembly 20 consists of a strap 21 and a movable buckle 18. The movable buckle 18 consists of a movable buckle lower pressure handle 15 and a movable buckle bottom seat groove 16. The strap 21 is made of nylon, with one end being a strap triangular head 9 and the other end being a strap flush head 8. One end of the flush head passes through the lower through hole 17 of the movable buckle bottom seat groove, overlaps with the strap body on this side, and is fixed near the lower through hole 17 of the movable buckle bottom seat groove, forming the lower fixing point 7 of the strap movable buckle. Figure 1 , 2 As shown in Figure 4.

[0029] The following describes in detail the working principle of the lithium battery pack fixing strap in the utility model lithium battery tool:

[0030] This embodiment aims to overcome the problem of loose interfaces caused by gaps between components in existing lithium battery tools. This embodiment includes a base plate 1 and two strap assemblies 20. A front baffle 6 extends upwards from the left edge of the base plate 1, and the connection between the two forms the left inner corner 12 of the base plate. At the four corners of the bottom of the base plate 1, protruding elongated support feet 19 through holes extend downwards, one pair at the front and one pair at the back. One end of each strap assembly 20 is a triangular end 9, and the other end is a flat end 8, which is connected and fixed to a movable buckle. In use, the two strap assemblies 20 pass through the two pairs of through holes at the bottom of the base plate 1. After the bottom 10 of the lithium battery pack is placed on the base plate 1 and close to the front baffle 6, the two straps 21 that have passed through are then used to fix the two straps. One strap is bent diagonally upwards from the upper rear of the battery interface 13 and passed through the middle of the front movable buckle 4. The other strap is also bent diagonally upwards from the upper front of the battery interface 14 and passed through the middle of the rear movable buckle 5. By utilizing the tension applied diagonally by two straps, in conjunction with the base plate 1 and the front baffle 6, the assembled lithium battery pack is stably fixed, eliminating gaps between components and ensuring the stable position of the lithium battery pack. This overcomes the problem of loosening and gaps at the interfaces of lithium battery packs in lithium-ion tools after a period of use.

[0031] It should be understood that the terms "base plate", "movable buckle", "flush head", "press handle", "bottom", "upper rear", "upper front", "through hole", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention 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. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium battery pack fixing strap for lithium battery tools, comprising a base plate (1) and a strap assembly (20), characterized in that, The base plate (1) is used to support and carry the bottom of the lithium battery pack. The base plate (1) has a front baffle (6) extending upward at a predetermined angle to the base plate (1) on its left edge to limit the displacement of the lithium battery pack. The strap assembly (20) includes a strap (21). The free end of the strap (21) passes through two pairs of through holes below the base plate (1), wraps around from above the machine head interface with the lithium battery pack installed, and is fixed with the movable buckle (25) at its other end to constrain the lithium battery pack above the base plate (1).

2. The lithium battery pack fixing strap for lithium-ion tools according to claim 1, characterized in that, The bottom plate (1) has independent raised elongated support feet (19) with positioning through holes at the four corners of the bottom, with a pair at each end to prevent the strap (21) from moving back and forth during use.

3. The lithium battery pack fixing strap for lithium-ion tools according to claim 1, characterized in that, The strap assembly (20) consists of two straps. These two strap assemblies (20) pass through two pairs of through holes at the bottom of the base plate (1) and are angled upwards. They come around from above the machine head interface and pass through the middle of the corresponding movable buckle to tighten and fix them.

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