CN109177710B - Battery box locking device and battery box assembly using same - Google Patents

Abstract

The invention relates to a battery box locking device and a battery box assembly using the same, aiming at solving the problem that a battery box body is inconvenient to disassemble due to the use of a locking device in the prior art. In order to achieve the purpose, when the battery box locking device is used, the battery locking device is fixed on one of the battery box base or the battery box body, a lock hole for inserting a lock tongue in the locking device is formed in the other one of the battery box base and the battery box body, the lock tongue is pushed to move forwards, the front end of the lock tongue enters the corresponding lock hole, the lock tongue is positioned at a locking position, and the movable stopping piece is moved to a position capable of stopping the backward movement of the lock tongue, so that the lock tongue can be locked at the locking position; the movable stopping piece is moved away to remove the limit of the movable stopping piece on the lock tongue, so that the lock tongue can be pulled to be separated from the lock hole, and the battery box body can be conveniently and quickly disassembled.

Description

Battery box locking device and battery box assembly using same

The application is a divisional application of the following applications, the application date of the original application: 2016/07/06/original application No.: 2016105261539, title of original application: a battery box locking device and a battery box assembly using the same.

Technical Field

The invention relates to a battery box locking device and a battery box assembly using the same.

Background

With the rapid development of super batteries, the application of super batteries to devices or vehicles is increasing, and the fixation of super batteries is also receiving more and more attention. When the conventional method is used for fixing the super battery, the super battery is locked on equipment by using a pressing strip or a bolt by generally referring to a fixing method of a lithium battery or a lead-acid battery. Because a plurality of screws must be loosened and tightened when the super battery is disassembled and assembled, the disassembly and the assembly are inconvenient, the disassembly and the assembly efficiency are influenced, and the workload of the assembly and the disassembly is increased.

Chinese patent application No. CN103253243A, entitled "battery box locking and retaining structure", discloses a battery box locking and retaining structure, which includes a battery outer box (i.e., a battery box base), a battery inner box (i.e., a battery box body), a battery loading and unloading mechanism, and a battery box locking and retaining mechanism. The both sides of battery inner box have with battery outer container complex locking hole, the guide is installed locking round pin (a kind of spring bolt promptly) with removing in the locking hole (a kind of guiding hole promptly) of battery outer container, and the tip of locking round pin can stretch into in order to realize the fixed connection of battery inner box and battery outer container or deviate from in the locking hole by the battery inner box and realize breaking away from of battery inner box and battery outer container in the locking hole (a kind of lockhole promptly) of battery inner box. The periphery of the locking pin is sleeved with a locking spring which has the axis collinear with the guiding moving direction of the locking pin and is used for limiting the locking pin to be inserted into a locking hole of the battery inner box and to be in a locking position. When the battery box locking and retaining structure is used, when the battery inner box and the battery outer box need to be separated from each other and are positioned in an unlocking position, force enough for enabling the spring to deform is always applied to the locking pin, and great inconvenience is brought to the unlocking process of the battery box.

Disclosure of Invention

The invention aims to provide a battery box locking device to solve the problem that a battery box body is inconvenient to disassemble due to the use of a locking device in the prior art; the invention also aims to provide a battery box assembly using the battery box locking device.

In order to achieve the purpose, the technical scheme of the battery box locking device is as follows:

the battery box locking device comprises a device base body and a lock tongue which is assembled on the device base body in a guiding and moving mode along the front-back direction and used for being inserted into a corresponding lock hole, wherein the lock tongue and the device base body are provided with stopping structures, and each stopping structure comprises a moving stopping piece which is used for being in limiting fit with the lock tongue when the lock tongue is located at a locking position so as to prevent the lock tongue from moving backwards and can remove the limit of the lock tongue through moving.

The movable stopping piece is arranged on one of the lock tongue or the device base body in a floating mode along the radial direction of the lock tongue through a spring, the stopping structure further comprises a limiting concave part which is used for being matched with the lock tongue and arranged on the other one of the lock tongue or the device base body, the movable stopping piece is in limiting fit with the limiting concave part to prevent the lock tongue from moving backwards when the lock tongue is in a locking position, the movable stopping piece is provided with an unlocking surface which is used for being in pushing fit with the limiting concave part to force the movable stopping piece to be separated from the limiting concave part when the lock tongue moves backwards, and the unlocking surface is an inclined surface or an arc surface.

The movable stopping piece is a top bead, the top bead is arranged on the spring bolt through a compression spring which is arranged on the spring bolt and extends along the radial direction of the spring bolt, and the spherical surface of the top bead, facing the limiting concave part, forms the unlocking surface.

The middle part of the spring bolt is provided with a stop piece mounting hole with an axis extending along the radial direction of the spring bolt, the stop piece mounting hole is a blind hole, the compression spring is mounted at the bottom of the blind hole, the ejecting ball is arranged at the top end of the compression spring, the ejecting ball partially exposes out of an orifice of the blind hole when the compression spring is in a free state, and the compression spring is in a compression stress state when the spring bolt is inserted into the lock hole.

The device base member is provided with a guide hole extending along the front-rear direction, and the lock tongue is installed in the guide hole in a rotation stopping matching and guiding movement mode.

The battery box assembly adopts the following technical scheme:

the battery box component comprises a battery box body and a battery box base, wherein one of the battery box body and the battery box base is provided with a battery box locking device for fixedly connecting the battery box body and the battery box base, and the battery box locking device comprises a device base body and a lock tongue which is guided to move along the front-back direction and is assembled at the front end of the device base body and is used for being inserted into a corresponding lock hole; the other one of the battery box body and the battery box base is provided with a lock hole for inserting the lock tongue, the lock tongue and the device base body are provided with a stopping structure, and the stopping structure comprises a moving stopping piece which is used for being in limit fit with the lock tongue when the lock tongue is in a locking position so as to prevent the lock tongue from moving backwards and can remove the limit of the lock tongue through moving.

The movable stopping piece is arranged on one of the lock tongue or the device base body in a floating mode along the radial direction of the lock tongue through a spring, the stopping structure further comprises a limiting concave part which is used for being matched with the lock tongue and arranged on the other one of the lock tongue or the device base body, the movable stopping piece is in limiting fit with the limiting concave part to prevent the lock tongue from moving backwards when the lock tongue is in a locking position, the movable stopping piece is provided with an unlocking surface which is used for being in pushing fit with the limiting concave part to force the movable stopping piece to be separated from the limiting concave part when the lock tongue moves backwards, and the unlocking surface is an inclined surface or an arc surface.

The movable stopping piece is a top bead, the top bead is arranged on the spring bolt through a compression spring which is arranged on the spring bolt and extends along the radial direction of the spring bolt, and the spherical surface of the top bead, facing the limiting concave part, forms the unlocking surface.

The middle part of the spring bolt is provided with a stop piece mounting hole with an axis extending along the radial direction of the spring bolt, the stop piece mounting hole is a blind hole, the compression spring is mounted at the bottom of the blind hole, the ejecting ball is arranged at the top end of the compression spring, the ejecting ball partially exposes out of an orifice of the blind hole when the compression spring is in a free state, and the compression spring is in a compression stress state when the spring bolt is inserted into the lock hole.

The device base member is provided with a guide hole extending along the front-rear direction, and the lock tongue is installed in the guide hole in a rotation stopping matching and guiding movement mode.

The invention has the beneficial effects that: when the battery box locking device is used, the battery locking device is fixed on one of the battery box base or the battery box body, the other one of the battery box base and the battery box body is provided with a lock hole for inserting a lock tongue in the locking device, the lock tongue is pushed to move forwards to enable the front end of the lock tongue to enter the corresponding lock hole so as to enable the lock tongue to be in a locking position, and the movable stopping piece is moved to a position capable of stopping the back movement of the lock tongue, so that the lock tongue can be locked in the locking position; the movable stopping piece is moved away to remove the limit of the movable stopping piece on the lock tongue, so that the lock tongue can be pulled to be separated from the lock hole, and the battery box body can be conveniently and quickly disassembled.

Drawings

FIG. 1 is a schematic structural view of a battery box locking device of the present invention mounted on a device body;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a perspective view of the locking pin of FIG. 1;

FIG. 7 is a schematic perspective view of the base of FIG. 1;

FIG. 8 is a front view of FIG. 7;

FIG. 9 is a schematic structural view of one embodiment of a battery case body according to the present invention;

FIG. 10 is a schematic structural view of one embodiment of the battery box assembly of the present invention;

fig. 11 is a cross-sectional view of fig. 10.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In the embodiment of the battery box assembly of the present invention, as shown in fig. 1 to 11, the battery box assembly includes a battery box body 6 and a battery box base for mounting the battery box body 6. The battery box base comprises an equipment side surface 5 and two stepped bases 1 arranged on the equipment side surface 5, guide holes 11 with axes extending along the width direction of the base 1 are arranged in the base 1 at intervals along the length direction of the base 1, each guide hole 11 comprises a key-shaped hole section 111 and a round hole section 112, one end, close to the round hole section 112, of each key-shaped hole section 111 is provided with a limiting hole 12, the axes of the limiting holes are perpendicular to the axes of the guide holes 11, and two ends of each limiting hole 12 penetrate through the base 1 and the key-shaped hole section 111 respectively. The diameter of the limiting hole 12 is smaller than that of the steel ball 41 to ensure that the steel ball 41 cannot be disengaged from the top end of the base 1 through the limiting hole 12.

The bolt 2 comprises a key-shaped shaft section 21 matched with the shape of the key-shaped hole section 111 and a round shaft section 22 matched with the shape of the round hole section 112, the bolt 2 moves in a guiding mode and is inserted into the guide hole 11 in a rotation stopping mode, and the inserted and matched key-shaped shaft section 21 and the key-shaped hole section 111 play a role in rotation stopping. One end of the key-shaped shaft section 21 close to the circular shaft section 22 is provided with a stop piece mounting hole 23 with the extending direction vertical to the axis of the lock tongue 2, the other end of the key-shaped shaft section 21 is provided with a handle mounting hole 24 with the axis direction vertical to the axis of the lock tongue 2, two ends of the handle mounting hole 24 respectively penetrate through two straight side surfaces of the key-shaped shaft section 21, the stop piece mounting hole 23 is a blind hole, and the upper end of the stop piece mounting hole penetrates through the lock tongue 2. The round handle 3 is installed at the end part, far away from the insertion end, of the bolt 2 through the handle installation hole 24, the limiting part 4 comprises a spring 42 and a steel ball 41, the diameter of the steel ball 41 is smaller than the aperture of the stopper installation hole 23, the spring 42 is placed at the bottom of the stopper installation hole 23 in the expansion direction parallel to the axial direction of the stopper installation hole 23, and the steel ball 41 is pressed by the spring 42 and is located at the upper part of the stopper installation hole 23.

When it is necessary to mount the battery box body 6 on the equipment side surface 5, first, the stopper 4 is fitted into the stopper mounting hole 23 of the tongue 2, and the handle 3 is fitted into the handle mounting hole 24 of the tongue 2. Then the bolt 2 provided with the limiting piece 4 and the handle 3 is inserted into the guide hole 11. The round hole sections 112 of the two bases 1 are oppositely fixed on the equipment side surface 5 according to the shape of the battery box body 6, and the battery box body 6 is placed between the two bases 1. The spring bolt is pushed to move towards the battery box body 6 until resistance is increased when the spring bolt 2 is pushed, the top of the steel ball 41 is clamped into the limiting hole 12 on the base 1 to form a clamping end, the steel ball 41 clamped into the limiting hole 12 enables the spring bolt 2 to be in a locking position capable of fixing the battery box body 6 on the base 1, and the circular shaft section 22 of the spring bolt 2 extends out of the end part of the circular hole section 112 at the locking position to form an inserting end 25 for fixing the battery box body 6. When installing battery box body 6, pulling handle 3 makes spring bolt 2 be in the position of unblock, and the bolt 2 insert the joining in marriage the end 25 and retract to the guiding hole 11 this moment, places the battery box body 6 that has the locating hole 61 in advance on both sides to the position between two bases 1 again, promotes spring bolt 2 and makes its insert the joining in marriage end 25 and stretch out guiding hole 11 and insert the locating hole of dress on battery box body 6, has accomplished the installation to battery box body 6 promptly. The steps are similar to the steps when the battery box body 6 is disassembled, and the battery box body 6 can be drawn out from the side surface 5 of the equipment only by pulling the handle 3 to enable the bolt 2 to enter the unlocking position from the locking position.

In other embodiments: the two bases can also be of an integral structure matched with the shape of the corresponding battery box body; the steel ball can also be replaced by other structures which are provided with spherical surfaces, cambered surfaces or inclined surfaces and can be used as unlocking surfaces which are separated from the limiting holes when the lock tongue is under the axial force; the diameter of the lock pin can be smaller than that of the guide hole without arranging a mounting hole of the stop piece, and the spring can be directly fixed on the lock pin at the moment, and the steel ball is fixed at one end of the spring, which is far away from the lock pin; the limiting hole can be replaced by other concave parts which are provided with an annular groove, a polygonal groove and the like on the base and can be used for clamping the top of the steel ball. When the concave part is an annular groove, the lock tongue can be rotatably guided and arranged in the limiting hole on the base; of course, the spring ejecting ball can also be arranged on the base, and the spring bolt is provided with a limiting hole for the spherical end part of the spring ejecting ball to be clamped in; the steel ball can be replaced by other movable stopping pieces which can move to the proper position to stop the backward movement of the locking tongue in the locking state and can remove the backward movement limit of the locking tongue after moving away; the base and the spring top bead arranged on the base can be fixed on the battery box body, correspondingly, a positioning hole for clamping the inserting end of the spring bolt is required to be formed in the side face of the equipment, and the side face of the equipment forms a positioning face.

The specific embodiment of the battery box locking device of the invention comprises the following steps: the specific structure of the battery box locking device is the same as that of the battery box locking device in the embodiment of the battery box assembly, and reference is made to fig. 1 to 11, which will not be described in detail herein.

Claims (2)

1. Battery box locking device, including the device base member and along the fore-and-aft direction guide move the spring bolt that the front end of assembling on the device base member is arranged in inserting corresponding lockhole, corresponding lockhole for by the locking on the battery box on the device base member with spring bolt complex locating hole, its characterized in that: the lock tongue and the device base body are provided with a stopping structure, and the stopping structure comprises a moving stopping piece which is used for limiting and matching with the lock tongue when the lock tongue is in a locking position so as to prevent the lock tongue from moving backwards and can remove the limit of the lock tongue through moving;

the moving stopping piece moves along the radial direction of the lock tongue;

the stop structure also comprises a limit concave part which is arranged on the other one of the lock tongue or the device base body and is used for being matched with the movable stop piece;

the device comprises a device base body, a base body and a plurality of guide holes, wherein the device base body is a battery box base, the battery box base comprises an equipment side face and two bases arranged on the equipment side face, the bases are internally provided with the guide holes at intervals along the length direction, the axes of the guide holes extend along the width direction of the bases, and the guide holes comprise key-shaped hole sections and circular hole sections;

the lock tongue comprises a key-shaped shaft section matched with the shape of the key-shaped hole section and a round shaft section matched with the shape of the round hole section, the lock tongue moves in a guiding way and is inserted and matched in the guiding hole in a rotation stopping way, the key-shaped shaft section and the key-shaped hole section which are inserted and matched play a role in rotation stopping, the round shaft section of the lock tongue extends out of the end part of the round hole section at the locking position to form an insertion and matching end for fixing the battery box, and the insertion and matching end is inserted in the positioning hole of the battery box;

the positioning hole of the battery box is a round hole.

2. Battery box subassembly, including battery box body, battery box base, be equipped with on one of them of battery box body and battery box base and be used for realizing battery box body and battery box base fixed connection's battery box locking device, including the device base member and along the fore-and-aft direction remove the spring bolt that the front end of assembling on the device base member is used for inserting corresponding lockhole, corresponding lockhole for by the locking on the battery box on the device base member with spring bolt complex locating hole, its characterized in that: the lock tongue and the device base body are provided with a stopping structure, and the stopping structure comprises a moving stopping piece which is used for limiting and matching with the lock tongue when the lock tongue is in a locking position so as to prevent the lock tongue from moving backwards and can remove the limit of the lock tongue through moving;

the moving stopping piece moves along the radial direction of the lock tongue;

the stop structure also comprises a limit concave part which is arranged on the other one of the lock tongue or the device base body and is used for being matched with the movable stop piece;

the device comprises a device base body, a base body and a plurality of guide holes, wherein the device base body is a battery box base, the battery box base comprises an equipment side face and two bases arranged on the equipment side face, the bases are internally provided with the guide holes at intervals along the length direction, the axes of the guide holes extend along the width direction of the bases, and the guide holes comprise key-shaped hole sections and circular hole sections;

the lock tongue comprises a key-shaped shaft section matched with the shape of the key-shaped hole section and a round shaft section matched with the shape of the round hole section, the lock tongue moves in a guiding way and is inserted and matched in the guiding hole in a rotation stopping way, the key-shaped shaft section and the key-shaped hole section which are inserted and matched play a role in rotation stopping, the round shaft section of the lock tongue extends out of the end part of the round hole section at the locking position to form an insertion and matching end for fixing the battery box, and the insertion and matching end is inserted in the positioning hole of the battery box;

the battery box positioning hole is a round hole.

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