CN211929567U - Electric tool and battery pack thereof - Google Patents

Abstract

The utility model discloses an electric tool and group battery thereof, wherein, the group battery includes casing, guide part and spacing part, the casing is including dismantling upper cover and the lower cover of connection, guide part includes the guiding hole, the guiding hole is located the lower cover, spacing part includes buckle and spring, the guiding hole is used for the sliding guide of buckle, the spring is located the bottom of guiding hole, just the spring is located the below of buckle. Through the interact of buckle and spring, realize reducing by a wide margin of group battery part quantity, improved the production and the packaging efficiency of group battery.

Description

Electric tool and battery pack thereof

Technical Field

The utility model relates to an electric tool technical field especially relates to an electric tool and group battery thereof.

Background

The reinforcing steel bar binding machine is a hand-held battery type reinforcing steel bar quick binding tool, is an intelligent tool and can automatically finish all steps of reinforcing steel bar binding. The steel bar binding machine mainly comprises four parts, namely a machine body, a special wire coil, a battery box and an electric appliance.

The electric tool matched battery pack for the steel bar binding machine on the market has a large number of parts, and the production and assembly efficiency of the battery pack is lower. In addition, the battery pack is often roughened by sliding during the mounting process, which greatly reduces the service life. Meanwhile, during operation, dust easily enters the battery pack, and the normal use of the electric tool is seriously affected.

Therefore, it is important to design an electric tool and its battery pack with novel structure and convenient use.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the prior art, the utility model aims at: provided are an electric tool and a battery pack thereof, which can reduce the number of parts of the battery pack and improve the production and assembly efficiency of the battery pack.

The utility model discloses an aim at is realized through following technical scheme: a battery pack comprises a shell, a guide part and a limiting part, wherein the shell comprises an upper cover and a lower cover which are detachably connected, the guide part comprises a guide hole, the guide hole is positioned in the lower cover, the limiting part comprises a buckle and a spring, the guide hole is used for sliding guide of the buckle, the spring is positioned at the bottom of the guide hole, and the spring is positioned below the buckle;

when the buckle is positioned at the top end, the upper surface of the buckle is higher than the upper surface of the upper cover;

when the buckle is located the bottom, the buckle with the terminal surface of guiding hole contacts.

Furthermore, the buckle comprises a positioning column, a guide column, a limiting surface, a pressing surface and a positioning surface, the positioning column is matched with the spring, the combining end surface of the positioning column and the guide column is used for axially positioning the top of the spring, and the limiting surface, the pressing surface and the positioning surface are all located above the guide column.

Further, the upper cover is provided with a first through hole and a second through hole, two sides of the inner surface of the first through hole are provided with first supporting pieces, one side of the inner surface of the second through hole is provided with a second supporting piece, and the first supporting piece and the second supporting piece are used for assisting the buckle to slide up and down.

Further, the buckle still includes the anticreep subassembly, the anticreep subassembly includes buckle face, spigot surface and holding surface, the buckle face with the holding surface is located respectively the both sides of spigot surface, just the holding surface with first support piece cooperatees.

Furthermore, the end face of the guide hole is provided with a side edge bulge.

Furthermore, the limiting surface is matched with the side protrusions.

Further, the pressing surface is matched with the first through hole.

Furthermore, the upper surface of the pressing surface is provided with a bump.

Furthermore, the height of one end of each of the pressing surface and the guide surface is higher than that of the other end of each of the pressing surface and the guide surface.

The other purpose of the utility model is realized by the following technical scheme: an electric tool is an electric tool which can be disassembled with a battery pack, when the battery pack is installed, a guide surface of the battery pack is matched with a guide arc surface of the electric tool;

when the installation of group battery is accomplished, the buckle face of group battery cooperatees with the draw-in groove on the electric tool.

The utility model discloses for prior art have following advantage and effect:

1. the battery pack comprises a shell, a guide part and a limiting part, wherein the shell comprises an upper cover and a lower cover which are detachably connected, the guide part comprises a guide hole, the guide hole is positioned on the lower cover, the limiting part comprises a buckle and a spring, the guide hole is used for sliding guide of the buckle, the spring is positioned at the bottom of the guide hole, and the spring is positioned below the buckle; through the interact of buckle and spring, realize reducing by a wide margin of group battery part quantity, improved the production and the packaging efficiency of group battery.

2. When the battery pack is installed, the guide surface of the battery pack is matched with the guide arc surface of the electric tool; when the installation of group battery is accomplished, the buckle face of group battery cooperatees with the draw-in groove on the electric tool, adopts this kind of design, can effectively restrict the group battery and drop from electric tool to, be convenient for take out of group battery.

Drawings

Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a battery pack A-A according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a battery pack B-B according to an embodiment of the present invention;

FIG. 4 is a front view of the upper cover of the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an upper cover according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a buckle according to an embodiment of the present invention;

FIG. 7 is a side view of a buckle according to an embodiment of the present invention;

FIG. 8 is a top view of a buckle according to an embodiment of the present invention;

fig. 9 is a front view of an electric power tool according to an embodiment of the present invention;

fig. 10 is a schematic view of a state of an electric power tool according to an embodiment of the present invention;

fig. 11 is a schematic view showing another state of the electric power tool according to the embodiment of the present invention;

fig. 12 is a schematic view of another state of the electric power tool according to the embodiment of the present invention.

Wherein, the embodiment of the utility model provides an in: 1. an upper cover; 2. a lower cover; 3. a guide hole; 4. Buckling; 41. a positioning column; 42. a guide post; 43. a limiting surface; 44. pressing the face; 45. positioning the surface; 46. a buckle surface; 47. a guide surface; 48. a support surface; 5. a spring; 6. a first through hole; 7. a second through hole; 8. a first support member; 9. a second support member; 10. the side edge is convex; 11. a bump; 12. a guiding arc surface; 13. a clamping groove.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

As shown in fig. 1 to 3, a battery pack according to a preferred embodiment of the present invention includes a housing, a guide member and a position limiting member, wherein the housing includes an upper cover 1 and a lower cover 2 detachably connected to each other, the guide member includes a guide hole 3, and the guide hole 3 is located in the lower cover 2. The connection mode of the upper cover 1 and the lower cover 2 can adopt a mode of screw, buckle and the like. Specifically, the limiting part comprises a buckle 4 and a spring 5, the guide hole 3 is used for sliding guide of the buckle 4, the spring 5 is located at the bottom of the guide hole 3, and the spring 5 is located below the buckle 4. That is, the guide hole 3 is used for mounting and positioning of the spring 5, the bottom of the guide hole 3 is used for bottom positioning of the spring 5, and at the same time, the guide hole 3 is used for slide guiding of the clip 4. When the buckle 4 is positioned at the top end, the upper surface of the buckle 4 is higher than the upper surface of the upper cover 1; when the buckle 4 is located at the bottom end, the buckle 4 is in contact with the end surface of the guide hole 3. Through the interact of buckle 4 and spring 5, realize reducing by a wide margin of group battery part quantity, improved the production and the packaging efficiency of group battery.

As shown in fig. 4 and 5, the upper cover 1 is provided with a first through hole 6 and a second through hole 7, two sides of the inner surface of the first through hole 6 are provided with a first supporting member 8, one side of the inner surface of the second through hole 7 is provided with a second supporting member 9, and the first supporting member 8 and the second supporting member 9 are used for assisting the buckle 4 to slide up and down. The catch 4 passes through the first through hole 6 and the second through hole 7, and an upper surface of the catch 4 is higher than an outer surface of the upper cover 1.

As shown in fig. 6 to 8, the buckle 4 includes a positioning column 41, a guiding column 42, a limiting surface 43, a pressing surface 44 and a positioning surface 45, the positioning column 41 is engaged with the spring 5, the combined end surface of the positioning column 41 and the guiding column 42 is used for axially positioning the top of the spring 5, the limiting surface 43, the pressing surface 44 and the positioning surface 45 are all located above the guiding column 42, and the pressing surface 44 is engaged with the first through hole 6. When the positioning surface 45 of the catch 4 contacts the inner surface of the upper cover 1, the catch 4 is held in the topmost position by the spring 5, and the upper surface of the catch 4 is higher than the upper surface of the upper cover 1.

The utility model discloses in, the terminal surface of guiding hole 3 is equipped with the side arch 10, and spacing face 43 cooperatees with the side arch 10. When an external force presses the pressing surface 44 of the buckle 1, the buckle 4 slides downwards, the side protrusion 10 of the guide hole 3 is used for limiting the buckle 4 to slide downwards to the lowest position, and the lowest position of the downward sliding of the buckle 4 is that the limiting surface 43 is in contact with the side protrusion 10.

In addition, the buckle 4 further comprises an anti-dropping component, the anti-dropping component comprises a buckle surface 46, a guide surface 47 and a support surface 48, the buckle surface 46 and the support surface 48 are respectively positioned at two sides of the guide surface 47, and the support surface 48 is matched with the second support member 9. In the present embodiment, the pressing surface 44 and the guide surface 47 each have one end higher in height than the other end.

When the pressing surface 44 of the latch 4 receives an external force, the latch 4 tends to rotate clockwise under the external force, and at this time, the second supporting member 9 of the upper cover 1 contacts with the supporting surface 48 of the latch 4 to assist the guiding sliding of the latch 4.

In order to prevent the buckle 4 from slipping in the use process, the upper surface of the pressing surface 44 is provided with at least two lugs 11, and the distance between every two adjacent lugs 11 is the same. The arrangement of all the bumps 11 may be equal or unequal according to actual needs.

Buckle 4 that group battery adopted, simple structure, modern design, convenient to use to the part quantity of group battery that has significantly reduced, thereby improved production, the packaging efficiency of group battery.

As shown in fig. 9 and 10, in an electric tool capable of being disassembled with a battery pack, when the battery pack is installed, the guide surface 47 is in contact with the guide arc surface 12 of the electric tool, so that the buckle 4 can slide downwards automatically under the action of the force for inserting and pulling the battery pack, and when the battery pack is inserted into the electric tool, the buckle 4 does not affect the installation of the battery pack on the electric tool, referring to fig. 11.

As shown in fig. 12, when the battery pack is inserted into the power tool after being mounted, the power tool is provided with a locking groove 13, at this time, the latch 4 is ejected out of the upper cover 1 under the action of the spring 5, and the upper surface of the latch 4 is higher than the outer surface of the upper cover 1, and the latch surface 46 is matched with the locking groove 13 on the power tool, so that the battery pack is prevented from falling off from the power tool.

When the battery pack is to be removed from the power tool, the upper surface of the hook 4 is made lower than the outer surface of the upper cover 1 by pressing the pressing surface 44 of the hook 4, and at this time, the battery pack can be easily removed from the power tool.

Electric tool, under the prerequisite of adopting above-mentioned group battery, the group battery is convenient from electric tool goes up the dismouting, has improved electric tool's availability factor by a wide margin.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims (10)

1. The battery pack is characterized by comprising a shell, a guide part and a limiting part, wherein the shell comprises an upper cover and a lower cover which are detachably connected, the guide part comprises a guide hole, the guide hole is positioned on the lower cover, the limiting part comprises a buckle and a spring, the guide hole is used for sliding and guiding the buckle, the spring is positioned at the bottom of the guide hole, and the spring is positioned below the buckle;

when the buckle is positioned at the top end, the upper surface of the buckle is higher than the upper surface of the upper cover;

when the buckle is located the bottom, the buckle with the terminal surface of guiding hole contacts.

2. The battery pack according to claim 1, wherein the buckle comprises a positioning column, a guiding column, a limiting surface, a pressing surface and a positioning surface, the positioning column is matched with the spring, the combined end surface of the positioning column and the guiding column is used for axially positioning the top of the spring, and the limiting surface, the pressing surface and the positioning surface are all located above the guiding column.

3. The battery pack according to claim 2, wherein the upper cover is provided with a first through hole and a second through hole, a first support member is provided on both sides of an inner surface of the first through hole, a second support member is provided on one side of an inner surface of the second through hole, and the first support member and the second support member are used for assisting the up-and-down sliding of the buckle.

4. The battery pack of claim 3, wherein the buckle further comprises an anti-slip assembly, the anti-slip assembly comprises a buckle surface, a guide surface and a support surface, the buckle surface and the support surface are respectively located on two sides of the guide surface, and the support surface is matched with the first support member.

5. The battery pack according to claim 2, wherein an end surface of the guide hole is provided with a side projection.

6. The battery pack of claim 5, wherein the stop surface cooperates with the side projections.

7. The battery pack of claim 3, wherein the pressing surface cooperates with the first through hole.

8. The battery pack according to claim 2, wherein an upper surface of the pressing surface is provided with a projection.

9. The battery pack according to claim 4, wherein the pressing surface and the guide surface each have one end higher in height than the other end.

10. An electric tool to which the battery pack according to any one of claims 1 to 9 can be attached and from which the battery pack is attached, wherein a guide surface of the battery pack is fitted to a guide arc surface of the electric tool when the battery pack is attached;

when the installation of group battery is accomplished, the buckle face of group battery cooperatees with the draw-in groove on the electric tool.

Images