CN213449902U - Lock catch structure - Google Patents

Abstract

The utility model relates to an electronic equipment field discloses a hasp structure for install the battery cover on electronic equipment's casing, contain: the battery cover comprises a buckling part arranged on the battery cover, an accommodating groove arranged on the shell and a clamping and locking device; the locking device is arranged in the accommodating groove and comprises a locking support, a button assembly and an elastic piece; the button assembly is abutted against the lock catch support and moves relative to the shell in the accommodating groove to extrude/release the lock catch support; the locking buckle support is connected with the elastic piece and moves relative to the shell under the extrusion/release of the button assembly so as to lock/release the buckling part contained in the containing groove. The utility model provides a hasp structure only needs the operation button subassembly for the corresponding locking of clamping part of battery cover is fixed or is released, can easily install the battery cover fixed or taken out, makes battery cover easy dismounting, and satisfies the reliability requirement of the higher life of battery cover.

Description

Lock catch structure

Technical Field

The utility model relates to an electronic equipment field, in particular to hasp structure.

Background

The lock catch is used as a common fixing mode of a detachable battery cover or a rear cover of an electronic product, and is widely used on electronic products such as a POS machine, a PDA, a PAD, a mobile phone, a notebook computer and the like.

The conventional latch structure, as shown in fig. 1 and 2, utilizes a latch 22 'of a battery cover 20' to engage with a recessed portion 11 'provided on a housing 10' to directly fix the battery cover 20 'to the housing 10'.

The inventor finds that at least the following problems exist in the prior art: during assembly, the battery cover 20 ' needs to be aligned with the housing 10 ', meanwhile, the hook part 22 ' of the battery cover 20 ' is inserted into the groove 11 ' of the housing 10 ', and then the battery cover 20 ' is pressed downwards, the battery cover 20 ' covers the housing 10 ', and the hook 21 ' is clamped in the groove 11 ', in the process, the battery cover 20 ' needs to be pressed forcibly during assembly, so that the battery cover 20 ' deforms to fasten the rear housing; although the battery cover 20 'can be removed by the battery cover locking structure, when the battery cover 20' is removed, as shown in fig. 1-2, the battery cover 20 'needs to be pulled out from the battery cover locking handle 21', so that the battery cover 20 'is deformed to be separated from the housing 10'. Therefore, the battery cover 20' is inconvenient to disassemble and assemble and the service life of the battery cover is reduced after long-term use due to the structure mode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hasp structure for battery cover easy dismounting, swift satisfies the high life's of battery cover reliability requirement.

In order to solve the above technical problem, an embodiment of the present invention provides a latch structure for installing a battery cover on a housing of an electronic device, the latch structure includes: the battery cover comprises a buckling part arranged on the battery cover, an accommodating groove arranged on the shell and a clamping and locking device; the locking device is arranged in the accommodating groove and comprises a locking support, a button assembly and an elastic piece; the button assembly is abutted against the lock catch support and moves relative to the shell in the accommodating groove to extrude/release the lock catch support; the locking buckle support is connected with the elastic piece and moves relative to the shell under the extrusion/release of the button assembly so as to lock/release the buckling part contained in the containing groove.

Compared with the prior art, the embodiment of the utility model is characterized in that the shell is provided with a containing groove, a locking device is arranged in the containing groove, and the locking device is composed of a button assembly, an elastic body and a locking bracket; the button assembly is abutted against the lock catch support, and the lock catch support is connected with the elastic piece. When the battery cover is installed, the button assembly can move in the accommodating groove relative to the shell to extrude the lock catch support, and the lock catch support further moves relative to the shell to lock the buckling part of the battery cover accommodated in the accommodating groove, so that the battery cover is fixed on the shell; when the battery cover is detached, the button assembly moves towards the other side relative to the shell in the accommodating groove to release the lock catch support, and the lock catch support moves towards the opposite direction relative to the shell to release the buckling part of the battery cover, so that the battery cover is separated from the shell. The lock catch structure in the utility model can easily mount and fix the battery cover or take out the battery cover by only operating the button assembly to correspondingly lock or release the buckling part of the battery cover, so that the battery cover is convenient to mount and dismount; and the battery cover does not need to be pressed by force, and can be fixed or separated from the shell without deformation, so that the reliability requirement of the high service life of the battery cover is met.

In addition, the button assembly comprises a button, a button fixing plate and a button return spring; a button hole is formed in the shell and is communicated with the accommodating groove; the button penetrates through the button hole to be fixedly connected with the button fixing plate, and the button can drive the button fixing plate to move relative to the shell along a first direction; the button return spring is abutted against the button fixing plate and provides restoring force for the button assembly to restore to the original position after moving. Through having seted up the button hole on the casing to let the button pass button hole and button fixed plate fixed connection, when pressing the button, the button can drive the relative casing of button fixed plate and move, extrudees/release hasp support on the first direction, and sets up button reset spring and button fixed plate and offset, resumes to the initial position after removing for button and button fixed plate and provides the restoring force.

In addition, the button fixing plate is a plate body provided with a dovetail groove; the plurality of side walls of the dovetail groove, which are abutted to the lock catch support, are obliquely arranged relative to the first direction. Through setting up the button fixed plate into the plate body of seting up the dovetail, and a plurality of lateral walls of dovetail and hasp support butt set to become with first direction certain angle slope for the button fixed plate is mechanical relative motion through the dovetail with the hasp support, and the motion precision is high, stable, and transmits the atress of button for the hasp support by the lateral wall, makes the hasp support extruded or release.

In addition, the lock catch support comprises a long-strip sliding block, one side of the sliding block is provided with a dovetail-shaped bulge matched and inserted with the dovetail groove, the side wall of the dovetail-shaped bulge, which is opposite to the dovetail groove, is a wedge-shaped surface, and the wedge-shaped surface is matched with the side wall of the dovetail groove; a spring column is arranged on one side surface of the sliding block, which is opposite to the dovetail-shaped bulge, and the spring column is cylindrical; a pair of clamping hooks are arranged on the sliding block on the same side of the spring column, and the clamping hooks are matched with the clamping part contained in the containing groove for locking. The lock catch support is provided with the long sliding block with the dovetail-shaped protrusion, the side wall of the dovetail-shaped protrusion, which is opposite to the dovetail groove, is correspondingly provided with the wedge-shaped surface, so that the lock catch support can be stably abutted against the button fixing plate, and the dovetail groove is matched with the dovetail-shaped protrusion to play a role in guiding and supporting, so that the lock catch support is extruded and released according to the motion state of the button; in addition, the slide block is provided with a clamping hook to be matched with the clamping part of the battery cover, and the battery cover is correspondingly locked/released when the lock catch support is extruded/released.

In addition, the locking device also comprises a locking pressing plate, the accommodating groove is provided with an opening on the outer surface of the shell, the locking pressing plate covers the opening and is fixedly connected with the shell, the locking pressing plate and the accommodating groove form a closed space, and the button fixing plate and the locking support are accommodated in the closed space. The button locking device is provided with a locking pressing plate so as to lock the button assembly and the locking support in the accommodating groove and limit the movement stroke of the button to a certain extent.

In addition, the shell is provided with an accommodating cavity for accommodating the battery cover, the accommodating cavity comprises a bottom wall, an accommodating hole is formed in the bottom wall relatively close to the button hole, the accommodating hole is communicated with the accommodating groove, and the buckling part of the battery cover penetrates into the accommodating groove through the accommodating hole to be matched with the hook of the lock catch support for lock catch. The accommodating cavity is formed in the shell to provide a space for accommodating the battery cover, and the bottom wall of the accommodating cavity is provided with an accommodating hole communicated with the accommodating groove, so that the clamping part of the battery cover extends into the accommodating groove to be matched with the locking port support.

In addition, the accommodating groove comprises a bottom wall and a plurality of side walls, a symmetrical stop plate is formed by extending the side wall close to the accommodating hole and the bottom wall, two first positioning columns matched with the button fixing plate are arranged on the bottom wall relatively far away from the symmetrical stop plate, and first positioning holes matched with the first positioning columns are symmetrically arranged on the button fixing plate; a slide rail for the locking bracket to slide is arranged between the symmetrical stop plates along the direction from the button hole to the symmetrical stop plates on the bottom wall of the containing groove; the bottom wall of the accommodating groove is also provided with at least two first installation parts; one surface of the lock catch support, which is opposite to the bottom wall of the accommodating groove, is provided with a sliding groove corresponding to the sliding rail; the side of the lock catch pressure plate, which is relatively close to the lock catch support, is provided with an arc-shaped bulge, the arc-shaped bulge is abutted against the lock catch support, and the lock catch pressure plate is further provided with a second installation part matched with the first installation part of the accommodating groove. The stop plate is arranged on the bottom wall of the containing groove to limit the sliding travel distance of the locking port support, so that the clamping hook and the clamping part are locked at corresponding positions; the bottom wall and the button fixing plate are respectively provided with a first positioning column and a first positioning hole which are matched with each other so as to provide an installation reference of the button fixing plate; the bottom wall is provided with a guide rail for the lock catch bracket to slide, so that the lock catch bracket can slide according to a set track; in addition, an arc-shaped bulge is arranged on the lock catch pressure plate, so that the lock catch pressure plate can be better abutted against the lock catch support.

In addition, the button comprises a pressing part and a fastening part extending from the surface of the pressing part close to the button hole along the length direction of the pressing part; the pressing part and the fastening part are both columnar bodies, the cross section of the pressing part is slightly larger than the button hole, and the cross section of the fastening part is slightly smaller than the button hole; one side of the fastening part, which is relatively far away from the pressing part, is provided with a threaded hole fixedly connected with the button fixing plate, the central position of the button fixing plate is provided with a stepped mounting hole matched with the threaded hole, and the button assembly also comprises a button screw which is inserted into the stepped mounting hole and is in threaded connection with the threaded hole; the button reset spring is a columnar spiral spring and is sleeved on the first positioning column of the accommodating groove, one end of the spiral spring abuts against the button fixing plate, and the other end of the spiral spring abuts against one surface, opposite to the button fixing plate, of the lock catch pressing plate. The button is arranged to be a component comprising a pressing part and a fastening part, the pressing part can be operated by a human hand, the fastening part is provided with a threaded hole, and the button is fixed with the button fixing plate through screw matching, so that the button fixing plate can execute corresponding actions along with the operation state of the button; in addition, a stepped mounting hole matched with the threaded hole is formed in the center of the button fixing plate, the head of the button screw can be sunk into the stepped hole, the space occupation in the accommodating groove is reduced, and the structure is more compact; and the button return spring provides a restoring force for the button to be restored to the initial position.

In addition, the elastic part is a spiral spring, the spiral spring is sleeved on the spring column, one end of the spiral spring abuts against one side face, deviating from the dovetail-shaped bulge, of the sliding block, and the other end of the spiral spring abuts against the side wall, close to the accommodating hole, of the accommodating groove. The spiral spring is sleeved on the spring column of the lock catch support, and the two ends of the spiral spring are respectively abutted against the side face of the lock catch support and the side wall of the accommodating groove, so that restoring force is provided for the lock locking device to restore to the initial position.

In addition, the shell is provided with a dispensing groove which surrounds the opening of the accommodating groove, the bottom wall of the dispensing groove is connected with each side wall of the accommodating groove to form a stepped structure, and the side, provided with the arc-shaped bulge, of the lock catch pressing plate is abutted to the bottom wall of the dispensing groove.

Drawings

FIG. 1 is a schematic view of a prior art assembly of a rear cover and a housing of a battery;

FIG. 2 is a schematic diagram of a prior art battery rear cover and housing connection;

fig. 3 is a schematic view of a latch structure according to a first embodiment of the present invention;

fig. 4 is a schematic view illustrating the assembly of a battery cover and a case according to a second embodiment of the present invention;

fig. 5 is a partial schematic view of a latch structure according to a second embodiment of the present invention;

fig. 6 is a schematic view of a lock catch according to a second embodiment of the present invention;

fig. 7 is a schematic structural view between the latch pressing plate, the latch bracket, and the housing according to the second embodiment of the present invention;

fig. 8 is a schematic view showing a moving direction of a button and a button fixing plate according to a second embodiment of the present invention;

fig. 9 is a schematic view of the movement between the button securing plate and the latch bracket according to the second embodiment of the present invention;

fig. 10 is a schematic view of the movement between the button return spring and the button assembly according to the second embodiment of the present invention;

fig. 11 is an assembly view of a latch bracket to a housing according to a second embodiment of the present invention;

fig. 12 is an assembly view of a button and a button fixing plate assembled to a case according to a second embodiment of the present invention;

fig. 13 is an assembly view of the latch pressing plate to the housing according to the second embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

The utility model discloses a first embodiment relates to a hasp structure for install the battery cover on electronic equipment's casing. The lock catch structure in the embodiment only needs to operate the button assembly, so that the corresponding locking or releasing of the buckling part of the battery cover can easily install and fix or take out the battery cover, and the battery cover is convenient to disassemble and assemble.

Specifically, as shown in fig. 1, the method includes: a buckling part 21 arranged on the battery cover 2, an accommodating groove 11 arranged on the shell 1, and a locking device. In the present embodiment, the locking device is disposed in the receiving groove 11 and includes a button assembly 31, a locking bracket 32, and an elastic member 33 (not shown).

The button assembly 31 and the latch bracket 32 abut against each other and move relative to the housing 1 in the accommodating groove 11 to press/release the latch bracket 32; the latch holder 32 is connected to the elastic member 33, and the latch holder 32 moves relative to the housing 1 under the pressing/releasing of the button assembly 31 to lock/release the locking portion 21 received in the receiving groove 11.

As shown by the arrow in fig. 3, the button assembly 31 can move back and forth along the arrow, when the battery cover 2 is mounted on the housing 1, that is, the fastening portion 21 of the battery cover 2 is inserted into the receiving groove 11, at this time, the button assembly 31 is moved downward, and since the button assembly 31 abuts against the latch bracket 32, the latch bracket 32 is pressed by the button assembly 31 and moves rightward in fig. 1, so that the latch bracket 32 is fastened with the battery cover fastening portion 21, and the battery cover 2 is fastened in the receiving groove 11 of the housing 1; when the battery cover 2 needs to be detached from the rear case 1, the button assembly 31 moves upward, in fig. 1, the space on the left side of the latch bracket 32 is vacated, the latch bracket 32 is released, the elastic member 33 provides an elastic force to return to the initial position, the latch bracket 32 moves to the left side and disengages from the fastening part 21 to release the fastening part 21, so that the battery cover 2 can be easily taken out.

It is easy to find that, the latch structure provided in the first embodiment of the present invention only needs to operate the button assembly 31 to lock or release the fastening portion 21 of the battery cover 2, so that the battery cover 2 can be easily mounted and fixed or taken out, and the battery cover 2 is convenient to disassemble and assemble; and the battery cover 2 does not need to be pressed hard, and the battery cover 2 does not need to be deformed to realize the fixation or separation with the shell 1, so that the reliability requirement of the battery cover 2 with long service life is met.

The second embodiment of the present invention relates to a latch structure. The second embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: in the second embodiment of the present invention, as shown in fig. 4, the housing 1 is further provided with a receiving cavity 12 for receiving the battery cover 2, and the receiving cavity 12 is provided with a receiving hole 121, the button assembly 31 includes a button 311, a button fixing plate 312 and a button return spring 313 (not shown in fig. 4), the button fixing plate 312 and the locking bracket 32 are matched by a dovetail structure, the locking device 3 further includes a locking pressing plate 34 (not shown in fig. 4), and the button assembly 31 and the locking bracket 32 are enclosed in the receiving cavity 11.

Specifically, the housing 1 is provided with an accommodating cavity 12 (see fig. 4) for accommodating the battery cover 2, the accommodating cavity 12 includes a bottom wall, the bottom wall is provided with an accommodating hole 121 (see fig. 4-5) relatively close to the button hole 13, the accommodating hole 121 is communicated with the accommodating groove 11, and the fastening portion 21 of the battery cover 2 extends into the accommodating groove 11 through the accommodating hole 121 to cooperate with the hook 323 of the latch bracket 32 for locking. Here, the housing 1 is provided with the receiving cavity 12 to provide a space for receiving the battery cover 2, and the bottom wall of the receiving cavity 12 is provided with the receiving hole 121 communicated with the receiving groove 11, so that the locking portion 21 of the battery cover 2 is inserted into the receiving groove 11 to be matched with the locking notch bracket 32.

As shown in fig. 6, the button assembly 31 includes a button 311, a button fixing plate 312, and a button return spring 313; a button hole 13 is formed in the shell 1, and the button hole 13 is communicated with the accommodating groove 11; the button 311 is fixedly connected to the button fixing plate 312 through the button hole 13, and the button 311 moves the button fixing plate 312 relative to the housing 1 in a first direction (as indicated by an arrow in fig. 8) to press/release the latch bracket 32 in the first direction. And the button return spring 313 abuts against the button fixing plate 312 and provides a restoring force for the button assembly 31 to restore to the original position after the movement.

The button fixing plate 312 is a plate body provided with a dovetail groove 3121, and a plurality of side walls of the dovetail groove 3121 abutting against the lock catch support 32 are obliquely arranged relative to the first direction, because only when the arrangement direction of the side walls and the moving direction of the button fixing plate 312 are obliquely arranged, it can be ensured that the side walls press the locking notch support 32 in the moving process of the button fixing plate 312; in addition, the plate body is provided with a dovetail groove structure, so that the button fixing plate and the lock catch support do mechanical relative motion through the dovetail groove, the motion precision is high, and the motion direction is stable.

In this embodiment, the lock catch support 32 includes a long slider, one side of the slider is provided with a dovetail-shaped protrusion 321 matched and inserted with the dovetail groove 3121, a side wall of the dovetail-shaped protrusion 321 opposite to the dovetail groove 3121 is a wedge-shaped surface, and the wedge-shaped surface is matched with the side wall of the dovetail groove. Here, the lock bracket 32 is configured as a long slider provided with the dovetail-shaped protrusion 321, and the side wall of the dovetail-shaped protrusion 321 opposite to the dovetail groove 3121 is correspondingly configured as a wedge-shaped surface, so that the lock bracket 32 and the button fixing plate 312 can be stably abutted against each other, and the dovetail groove 3121 is matched with the dovetail-shaped protrusion 321 to play a role in guiding and supporting. A spring column 323 is arranged on one side surface of the sliding block, which is opposite to the dovetail-shaped bulge 321, and the spring column 323 is cylindrical; a pair of hooks 322 are disposed on the slider on the same side of the spring column 323, and the hooks 322 are locked with the locking portion 21 accommodated in the accommodating groove 11. In practical application, the number of the spring columns 323 arranged on one side surface of the lock catch support 32 opposite to the dovetail-shaped protrusion 321 can be one, the spring columns 323 are arranged in the middle of the side surface, and a pair of clamping hooks 322 are symmetrically arranged on two sides of the spring columns 323; in addition, the number of the spring columns 323 can be two, and the spring columns can be correspondingly arranged at the middle position or two sides of the pair of hooks 322, which is determined according to the specific layout and is not particularly limited.

Correspondingly, the elastic member 33 is a coil spring and is disposed on the spring post 322, one end of the coil spring 33 abuts against a side surface of the slider departing from the dovetail-shaped protrusion 321, and the other end abuts against a side wall of the accommodating groove 11 close to the accommodating hole 121, so as to provide a restoring force for restoring the locking device 3 to the initial position.

In addition, the locking device 3 further includes a locking pressing plate 34, the receiving groove 11 forms an opening on the outer surface of the casing 1, the locking pressing plate 34 covers the opening of the receiving groove 11 and is fixedly connected to the casing 1, the locking pressing plate 34 and the receiving groove 11 form a closed space, the button fixing plate 312 and the locking bracket 32 are already received in the closed space, and the movement stroke of the button 311 is limited to a certain extent.

Correspondingly, the accommodating groove 11 includes a bottom wall and several side walls, a symmetrical stop plate 111 is formed by extending the side wall and the bottom wall near the accommodating hole 121, two first positioning posts 113 engaged with the button fixing plate 312 are disposed on the bottom wall relatively far from the symmetrical stop plate 111, and correspondingly, the button fixing plate 312 is symmetrically provided with first positioning holes 3122 engaged with the first positioning posts 113. In practical applications, the first positioning posts 113 are two cylindrical posts, relatively far away from the stop plate 111, and symmetrically disposed on two sides of the button hole 13 to match with the two positioning holes 3122 on the button fixing plate 312.

In addition, on the bottom wall of the containing groove 11, along the direction from the button hole 13 to the symmetrical stop plates 111, a slide rail 114 (see fig. 7) for the locking bracket 32 to slide is arranged between the symmetrical stop plates 111; at least two first mounting portions 112 are further disposed on the bottom wall of the accommodating groove 11, and correspondingly, a second mounting portion 341 matched with the first mounting portion 112 of the accommodating groove 11 is further disposed on the latch pressing plate 32. The locking pressing plate screw 342 is inserted into the second mounting portion 341 and screwed with the first mounting portion 112, so as to fix the locking bracket 32 at the opening of the receiving groove 11. In practical application, as shown in fig. 5, the first mounting portion includes a first cylindrical boss, a second cylindrical boss and a third cylindrical boss, the heights of the three cylindrical bosses are the same and are all greater than the height of the first positioning column 113, wherein the first cylindrical boss is located between the stop plates 111, and the height of the first cylindrical boss is not lower than the height of the stop plates 111, and the second cylindrical boss and the third cylindrical boss are respectively arranged at the outer sides of the two first positioning columns 113, and a thread groove for fixedly connecting the lock catch pressure plate 32 is formed in one surface of the three cylindrical bosses which is relatively far away from the bottom wall of the accommodating groove 11. Correspondingly, the second installation part comprises stepped installation holes corresponding to the number of the cylindrical bosses, and the stepped installation holes are adopted, so that the heads of the lock catch pressing plate screws are not exposed, and the assembly is more attractive.

In order to move the locking bracket according to the predetermined track, correspondingly, as shown in fig. 7, a sliding groove 114 corresponding to the sliding rail is formed on a surface of the locking bracket 32 opposite to the bottom wall of the accommodating groove 11. In practical applications, a slide rail may be disposed on the lock bracket 32, and a corresponding sliding slot is disposed on the bottom wall of the accommodating groove 11. In addition, an arc protrusion 343 is disposed on a surface of the locking pressing plate 34 relatively close to the locking bracket 32, and the arc protrusion 343 abuts against the locking bracket 32.

In practical applications, the button 311 may be configured to include a pressing portion 3111, and a fastening portion 3112 extending from a surface of the pressing portion 311 near the button hole 13 along a length direction of the pressing portion 3111; the pressing portion 3111 and the fastening portion 3112 are each a columnar body, the cross section of the pressing portion 311 is slightly larger than the button hole 13, and the cross section of the fastening portion 3112 is slightly smaller than the button hole 13. For the external aesthetic measure of the electronic device, the shell may be opened with a button hole (see fig. 8) with the same shape as the pressing part, the button hole is in a step shape, and there is a section of space for the pressing part to slide, so that the surface of the button is flush with the rear shell while ensuring the function, and the consistency of the appearance is ensured. Wherein, the fastening portion 3112 is relatively far away from one side of pressing portion 3111 and is seted up the screw hole 3113 with button fixed plate 312 fixed connection, the central point of button fixed plate 312 is provided with notch cuttype mounting hole 3123 with screw hole 3113 matched with, button subassembly 31 still includes a button screw 314, button screw 314 inserts notch cuttype mounting hole 3123 in and the screw hole 3113 looks spiro union. The button return spring 313 is a cylindrical coil spring, and is sleeved on the first positioning column 113 of the accommodating groove 11, one end of the spring 313 abuts against the button fixing plate 312, and the other end abuts against one surface of the latch pressing plate 32 opposite to the button fixing plate 312.

In order to achieve the waterproof and dustproof effects, the casing 1 is further provided with a dispensing slot 14 (see fig. 7), the dispensing slot 14 surrounds the opening of the accommodating slot 11, the bottom wall of the dispensing slot 14 is connected with each side wall of the accommodating slot 11 to form a stepped structure, and one side of the lock catch pressure plate 34 provided with the arc-shaped protrusion 343 abuts against the bottom wall of the dispensing slot 14.

When the battery cover is disassembled and assembled by using the latch structure provided in the second embodiment of the present invention, firstly, when the battery cover 2 is to be assembled to the housing 1, the button 311 is pressed first, then the battery cover 2 is fastened to the accommodating cavity 12, and the button 311 is released, so that the battery cover 2 can be fixed, and the battery cover 2 is mounted; when the battery cover 2 is detached from the case 1, the button 311 is similarly pressed to directly remove the battery cover 2, and then the button 311 is released. The specific principle is as follows: when the button 311 is pressed, as shown in fig. 8, the button 311 moves downward along the first direction indicated by the arrow in the figure, and then the button fixing plate 312 is driven to move downward along the first direction, so that the left side of the latch bracket 32 is provided with a space for the latch bracket 32 to move leftward under the cooperation of the elastic member 33, and the space for accommodating the hook portion 21 of the battery cover 2 in the accommodating groove 11 is provided (as shown in fig. 9). When the button is released, as shown in fig. 10, under the action of the button return spring 313, the button 311 moves upward in the first direction to return to the position before being pressed, and at the same time, the button fixing plate 312 also moves upward in the first direction, and under the cooperation of the dovetail groove 3121 and the dovetail-shaped protrusion 321, the latch bracket 32 is pushed to move rightward to return, and at this time, the hook 323 of the latch bracket 32 is locked with the locking portion 21 of the battery cover 2. Similarly, when the battery cover is removed, the button 311 is pressed again, the latch bracket 32 is released by the button fixing plate 312, moves leftward, and is separated from the latching portion 21, and at this time, the battery cover can be easily removed from the housing.

In practical application, in the first step of assembly, as shown in fig. 11, the elastic member 33 is assembled to the spring post 322 of the locking bracket 32, and then the locking bracket and the coil spring assembly are assembled together to the accommodating groove 11 of the housing 1; secondly, as shown in fig. 12, after the button 311 passes through the button hole 13, the button fixing plate 312 is fixed to the housing 1 through the button screw 314, and meanwhile, the button fixing plate 312 is fixed to the lock catch bracket 32 through the matching of the dovetail groove 3121 and the dovetail-shaped protrusion 321; thirdly, as shown in fig. 13, the button return spring 3123 is mounted on the first positioning column 113 of the receiving groove 11, and then the locking pressing plate 34 is fixed to the housing 1 by the locking pressing plate screw 342, so that the button fixing plate 312 and the locking bracket 32 are enclosed in the receiving groove 11; and fourthly, after the assembly is finished, dispensing and sealing are carried out at the joint of the bottom wall of the dispensing slot 14 and the lock catch pressing plate 34.

It is easy to find that the latch structure provided in the second embodiment of the present invention can easily mount and fix the battery cover or take out the battery cover only by operating the button, so that the battery cover is convenient to mount and dismount; the battery cover does not need to be pressed forcefully like the traditional mode, and can be fixed or separated from the shell without deformation, so that the reliability requirement of the battery cover on long service life is met; in addition, be provided with the some glue groove on the casing in order sealed, reach waterproof dirt-proof effect to satisfy the better waterproof reliability requirement of electronic product, in addition when carrying out battery cover dismouting operation to the electronic product that adopts this hasp structure, only need press the button can, then need not to set up on the battery cover and detain the hand position, satisfy ID molding requirement, possess better outward appearance effect.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims (10)

1. A latch structure for mounting a battery cover to a housing of an electronic device, comprising: the battery cover comprises a buckling part arranged on the battery cover, an accommodating groove arranged on the shell and a clamping and locking device;

the locking device is arranged in the accommodating groove and comprises a locking support, a button assembly and an elastic piece;

the button assembly and the lock catch bracket are mutually abutted and move relative to the shell in the accommodating groove so as to extrude/release the lock catch bracket;

the lock catch support is connected with the elastic piece, and moves relative to the shell under the extrusion/release of the button assembly so as to lock/release the buckling part contained in the containing groove.

2. A latch construction according to claim 1, wherein said button assembly comprises a button, a button securing plate and a button return spring; a button hole is formed in the shell and is communicated with the accommodating groove; the button penetrates through the button hole and is fixedly connected with the button fixing plate, and the button can drive the button fixing plate to move relative to the shell along a first direction; the button return spring is abutted against the button fixing plate and provides restoring force for the button assembly to restore to the original position after moving.

3. The latch structure according to claim 2, wherein the button fixing plate is a plate body provided with a dovetail groove; and a plurality of side walls of the dovetail groove, which are abutted against the lock catch bracket, are obliquely arranged relative to the first direction.

4. The latch structure according to claim 3, wherein the latch bracket comprises a long slider, one side of the slider is provided with a dovetail-shaped protrusion matched and inserted with the dovetail groove, the side wall of the dovetail-shaped protrusion opposite to the dovetail groove is a wedge-shaped surface, and the wedge-shaped surface is matched with the side wall of the dovetail groove; a spring column is arranged on one side surface of the sliding block, which is opposite to the dovetail-shaped bulge, and the spring column is cylindrical; and a pair of clamping hooks are arranged on the sliding block on the same side of the spring column, and the clamping hooks are matched with the clamping part contained in the containing groove for locking.

5. The latch structure of claim 4, wherein the locking device further comprises a locking plate, the receiving groove has an opening formed on an outer surface of the housing, the locking plate covers the opening and is fixedly connected to the housing, the locking plate and the receiving groove form a closed space, and the button fixing plate and the locking bracket are received in the closed space.

6. A latch structure according to claim 5, wherein the housing has a receiving cavity for receiving the battery cover, the receiving cavity includes a bottom wall, the bottom wall has a receiving hole formed therein relatively close to the button hole, the receiving hole is communicated with the receiving groove, and the fastening portion of the battery cover extends into the receiving groove through the receiving hole to be locked with the hook of the latch bracket.

7. The latch structure according to claim 6, wherein the receiving groove comprises a bottom wall and a plurality of side walls, a symmetrical stop plate is formed by extending the side wall close to the receiving hole and the bottom wall, two first positioning posts matched with the button fixing plate are arranged on the bottom wall relatively far away from the symmetrical stop plate, and first positioning holes matched with the first positioning posts are symmetrically arranged on the button fixing plate; a slide rail for the lock catch support to slide is arranged between the symmetrical stop plates along the direction from the button hole to the symmetrical stop plates on the bottom wall of the containing groove; the bottom wall of the accommodating groove is also provided with at least two first installation parts;

a sliding groove corresponding to the sliding rail is formed in one surface, opposite to the bottom wall of the accommodating groove, of the lock catch support;

the lock catch pressing plate is relatively close to one surface of the lock catch support is provided with an arc-shaped bulge, the arc-shaped bulge is abutted to the lock catch support, and a second installation part matched with the first installation part of the accommodating groove is further arranged on the lock catch pressing plate.

8. The latch structure according to claim 7, wherein the button comprises a pressing portion, a fastening portion extending from a surface of the pressing portion adjacent to the button hole along a length direction of the pressing portion; the pressing part and the fastening part are both columnar bodies, the cross section of the pressing part is slightly larger than the button hole, and the cross section of the fastening part is slightly smaller than the button hole; the fastening part is provided with a threaded hole fixedly connected with the button fixing plate on one side, far away from the pressing part, of the fastening part, the central position of the button fixing plate is provided with a stepped mounting hole matched with the threaded hole, the button assembly further comprises a button screw, and the button screw is inserted into the stepped mounting hole and is in threaded connection with the threaded hole;

the button reset spring is a columnar spiral spring and is sleeved on the first positioning column of the accommodating groove, one end of the spring abuts against the button fixing plate, and the other end of the spring abuts against one surface, opposite to the button fixing plate, of the lock catch pressing plate.

9. A latch construction according to claim 7,

the elastic piece is a spiral spring, the spiral spring is sleeved on the spring column, one end of the spiral spring abuts against one side face, deviating from the dovetail-shaped protrusion, of the sliding block, and the other end of the spiral spring abuts against the side wall, close to the accommodating hole, of the accommodating groove.

10. A latch structure according to claim 7, wherein the housing has a dispensing slot surrounding the opening of the receiving slot, the bottom wall of the dispensing slot is connected to each side wall of the receiving slot to form a stepped structure, and the side of the latch pressing plate having the arc-shaped protrusion abuts against the bottom wall of the dispensing slot.

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