CN217152578U - Screw and mobile terminal - Google Patents

Abstract

The utility model relates to a mobile terminal technical field especially relates to a screw and mobile terminal, include: screw body, including screw thread portion, screw seat and connection screw thread portion with the connecting portion of screw seat, be provided with the attacker on the screw seat, the attacker is relative the screw seat has work station and the station that resets, stop gear set up in on connecting portion global, be used for working in the screw install in prevent behind the battery cover the screw drops, and the staff can twist soon through the attacker screw that pops out, further makes the utility model provides a screw body can accomplish the dismantlement on the basis of not with the help of external instrument, when simplifying the screw dismantlement process, has practiced thrift the time, has avoided external instrument when frequent dismantlement screw simultaneously, to the emergence of screw wear phenomenon.

Description

Screw and mobile terminal

Technical Field

The utility model relates to a mobile terminal technical field especially relates to a screw and mobile terminal.

Background

The mobile terminal, for example, an industry law enforcement recorder and the like need to replace the battery due to long-time working requirements, so that the battery cover needs to be detachable, and meanwhile, the whole machine needs to meet the waterproof function.

The battery cover in the prior art is fixed with the nut on the shell by cutting the groove type screw, and the screw and the shell are fixed tightly, so that a user can disassemble the battery cover by means of a tool to replace the battery, the outdoor work is very inconvenient, and after the surface of the screw is repeatedly disassembled and assembled by the tool, the surface coating is easily worn, and the appearance is not attractive after a long time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a screw and mobile terminal for on the basis without the help of external instrument, dismantle the screw, simplify the screw and cover the process of dismantling in the battery.

In order to achieve the above purpose, the utility model provides the following technical scheme:

in a first aspect, the utility model provides a screw is applied to mobile terminal, mobile terminal includes the battery cover, include:

the screw comprises a screw body and a screw seat, wherein the screw body comprises a threaded part, a screw seat and a connecting part for connecting the threaded part and the screw seat, a buckle is arranged on the screw seat, the buckle is provided with a working station and a reset station relative to the screw seat, when the buckle is positioned at the working station, the buckle extends out of the screw seat and is far away from one side surface of the connecting part, and when the buckle is positioned at the reset station, the buckle does not extend out of the screw seat and is far away from one side surface of the connecting part;

and the limiting mechanism is arranged on the peripheral surface of the connecting part and is used for preventing the screw from falling off after the screw body is arranged on the battery cover.

Therefore, the utility model is provided with the cramp with two different stations, when the cramp is at the reset station, the cramp can not extend out of the screw seat to be far away from one side surface of the connecting part, thereby the problem of scraping and rubbing can not occur in the process of using the mobile terminal, when the cramp is at the working station, the cramp extends out of the screw seat to be far away from one side surface of the connecting part, thereby the screw can be conveniently disassembled, when the screw is applied to a mobile terminal, the battery needs to be replaced or the battery needs to be daily maintained, the staff only needs to switch the cramp from the reset station to the working station, namely, the cramp can extend out of the screw seat, the staff can screw the screw through the popped-out cramp, further, the screw in the utility model can complete the disassembly without the help of external tools, and when the screw disassembly process is simplified, the time is saved, and the phenomenon of screw abrasion caused by an external tool when the screw is frequently disassembled is avoided;

furthermore, the utility model discloses be equipped with stop gear on connecting portion, dismantling the battery cover and accomplish the back, under stop gear's effect, can make the screw can not take place the phenomenon that drops by covering the battery to avoided to a certain extent because of the volume of screw self is less, dismantling the back with the screw, the screw easily takes place the emergence of losing the phenomenon, has improved the utility model discloses a practicality.

In some embodiments, the distance between the limiting mechanism and the surface of the screw seat close to the connecting part is H, the length of the threaded part is H, and H satisfy the following relation:

H＞h。

in some embodiments, the limiting mechanism comprises an annular baffle plate, the annular baffle plate is sleeved outside the connecting part, and the annular baffle plate is perpendicular to the axis of the screw body.

In some embodiments, the limiting mechanism includes at least one limiting block, the limiting blocks are disposed on the circumferential surface of the connecting portion, and when the limiting blocks are plural, each adjacent limiting block is disposed on the same plane perpendicular to the axis of the screw body.

In some embodiments, the screw seat is provided with a receiving groove for placing the handle, and the surface of the screw seat away from the connecting part is provided with a cutting groove.

In some embodiments, the handle is rotatably connected with the screw seat through a rotating shaft, a first rotating shaft hole for mounting the rotating shaft is formed in the screw seat, two second rotating shaft holes which are in the same straight line are formed in the handle, and the rotating shaft sequentially passes through one of the second rotating shaft holes, the first rotating shaft hole and the other second rotating shaft hole; alternatively, the first and second electrodes may be,

the attacker pass through the hinge with the screw base rotates to be connected, the one end of hinge set up in on the screw base, the other end of hinge with the attacker is connected.

A second aspect, the utility model provides a mobile terminal, mobile terminal includes battery cover, casing and as above-mentioned arbitrary the screw, offer on the casing and be used for holding the mounting groove of battery cover, the battery cover lock in on the casing, offer on the mounting groove and be used for holding the first locking groove of screw, the diameter of first locking inslot inscription circle is greater than the diameter of stop gear circumcircle, be provided with the nut of moulding plastics in the mould on the bottom surface of first locking groove, the nut of moulding plastics in the mould passes through threaded connection with screw thread portion.

In some embodiments, the battery cover is provided with a screw retaining groove for accommodating the screw, and the diameter of a circumscribed circle of the limiting mechanism is larger than that of an inscribed circle of the screw retaining groove; alternatively, the first and second electrodes may be,

the battery cover further comprises at least one buckling mechanism, the buckling mechanism is arranged on one side, away from the screw retaining groove, of the battery cover, the buckling mechanism and the battery cover are of an integrated structure, buckling grooves in one-to-one correspondence to the buckling mechanisms are formed in the shell, and the buckling mechanisms are clamped with the buckling grooves.

In some embodiments, the battery cover further includes an annular waterproof rib, the annular waterproof rib is disposed on a surface of the battery cover close to one side of the housing, a waterproof rubber ring is disposed inside the first locking groove, and a limiting groove in interference fit with the annular waterproof rib is disposed on the waterproof rubber ring.

In some embodiments, the waterproof rib and/or the waterproof rubber ring are made of rubber.

Drawings

FIG. 1 is a partial sectional view of the overall structure of an embodiment of the present invention;

fig. 2 is a schematic diagram of a screw resetting station according to an embodiment of the present invention;

FIG. 3 is a schematic view of a screw working station according to an embodiment of the present invention;

fig. 4 is a schematic view of a side of the battery cover away from the housing according to the embodiment of the present invention;

fig. 5 is a schematic view of a side of a battery cover close to a housing according to an embodiment of the present invention;

fig. 6 is an exploded view of the screw body according to the embodiment of the present invention;

FIG. 7 is a schematic view of a screw seat of a screw body according to an embodiment of the present invention;

FIG. 8 is a schematic view of a fastener in a screw body according to an embodiment of the present invention;

FIG. 9 is a schematic view of a central axis of a screw body according to an embodiment of the present invention;

FIG. 10 is a schematic view of the embodiment of the present invention showing a screw without a handle and a rotating shaft;

fig. 11 is an enlarged schematic view of a portion a in fig. 1 according to an embodiment of the present invention;

fig. 12 is an enlarged schematic view of the embodiment of the present invention at B in fig. 1;

fig. 13 is an enlarged schematic view of the embodiment of the present invention at C in fig. 4;

fig. 14 is an enlarged schematic view of the embodiment of the present invention at D in fig. 5;

fig. 15 is a partial sectional view of the battery cover mounted to the housing in accordance with an embodiment of the present invention;

fig. 16 is an enlarged schematic view of the embodiment of the present invention at E in fig. 15;

fig. 17 is a partial cross-sectional view of the battery cover mounted and housing of the embodiment of the present invention without screws;

fig. 18 is a partial cross-sectional view of the housing of the embodiment of the present invention without screws;

fig. 19 is an enlarged schematic view of the embodiment of the present invention at F in fig. 18;

fig. 20 is the utility model discloses a standing groove schematic diagram of seting up on the waterproof rubber ring.

Wherein, in the figure: 1-screw seat, 2-connecting part, 3-screw part, 4-annular baffle, 5-handle, 6-rotating shaft, 7-cutting groove, 8-accommodating groove, 9-first rotating shaft hole, 10-second rotating shaft hole, 11-battery cover, 12-shell, 13-buckling mechanism, 14-first locking groove, 15-in-mold injection molding nut, 16-annular waterproof rib, 17-waterproof rubber ring, 18-screw retaining groove and 19-limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 20, in a first aspect, an embodiment of the present invention provides a screw for a mobile terminal, where the mobile terminal includes a battery cover 11, including:

the screw comprises a screw body and a screw seat, wherein the screw body comprises a threaded part 3, a screw seat 1 and a connecting part 2 for connecting the threaded part 3 and the screw seat 1, a buckle 5 is arranged on the screw seat 1, the buckle 5 is provided with a working station and a reset station relative to the screw seat 1, when the buckle 5 is positioned at the working station, the buckle 5 extends out of the surface of one side of the screw seat 1, which is far away from the connecting part 2, and when the buckle 5 is positioned at the reset station, the buckle 5 does not extend out of the surface of one side of the screw seat 1, which is far away from the connecting part 2;

and the limiting mechanism is arranged on the peripheral surface of the connecting part 2 and is used for preventing the screw from falling off after the screw is arranged on the battery cover 11.

Therefore, the utility model is provided with the buckle 5 with two different stations, when the buckle 5 is at the reset station, the buckle is not extended out of the screw seat 1 and is far away from one side surface of the connecting part, thereby the problem of scraping and rubbing can not occur during the use process of the mobile terminal, when the buckle is at the working station, the buckle 5 is extended out of the screw seat 1 and is far away from one side surface of the connecting part, the screw can be conveniently disassembled, when the screw is applied to a mobile terminal, when the battery needs to be replaced or the battery needs to be daily maintained, the worker only needs to switch the buckle 5 to the working station by the reset station under the action of the rotating shaft, the buckle 5 is extended out of the screw seat 1 and is far away from one side surface of the connecting part 2, namely, after the buckle 5 can be extended out of the screw seat 1, the worker can screw the screw can be screwed by the ejected buckle 5, further, the screw in the embodiment of the utility model can be realized without the help of external tools, the disassembly is completed, the screw disassembly process is simplified, the time is saved, and the phenomenon that the screw is abraded by an external tool when the screw is frequently disassembled is avoided;

furthermore, the embodiment of the utility model provides a be equipped with stop gear on connecting portion 2, dismantling battery cover 11 and accomplish the back, under stop gear's effect, can make the screw can not take place the phenomenon that drops by on the battery cover 11 to avoided to a certain extent because of the volume of screw self is less, dismantling the back with the screw, the emergence of phenomenon is lost in the easy emergence of taking place of screw, improved the utility model discloses the practicality.

In one possible implementation, as shown in fig. 2 and 3, the distance between the limiting mechanism and the surface of the screw base 1 on the side close to the connecting portion 2 is H, the length of the threaded portion 3 is H, and H satisfy the following relationship:

H＞h。

when the screw is being installed by screw retaining groove 18 to the casing in, the screw thread structure and the 15 threaded connection of the nut of moulding plastics in mould, this moment under stop gear's effect, can play a effect that blocks to the screw, screw portion 3 of screw body is twisting the completion back soon, just can no longer carry on continuing to twist soon, when needs are dismantled the screw by on the battery cover 11 simultaneously, because stop gear is greater than the length H that screw portion 3 is being greater than to the distance H that connecting portion 2 a side surface with screw base 1, thereby can make screw portion 3 can be complete by the inside screw-out of the nut 15 of moulding plastics in the mould, guaranteed the embodiment of the utility model provides a stability of battery cover 11 in the dismantlement process.

In one possible implementation manner, as shown in fig. 2 and 3, the limiting mechanism includes an annular baffle 4, the annular baffle 4 is sleeved outside the connecting portion 2, and the annular baffle 4 is perpendicular to the axis of the screw body, the embodiment of the present invention employs the annular baffle 4 disposed around the connecting portion 2, and employs the installation position perpendicular to the axis of the screw body, so as to enable the annular baffle 4 and the screw seat 1 to be in a parallel position relationship, and meanwhile, the annular baffle 4 is just installed at the connection position of the threaded portion 3 and the connecting portion 2, and the distance between the annular baffle 4 and the surface of the screw seat 1 near one side of the connecting portion 2 is greater than the length of the threaded portion 3, when the screw is unscrewed, the sufficient screwing length and the annular baffle 4 parallel to the screw seat 1 can be ensured, and in the process of unscrewing the screw, because the position of the annular baffle 4 is not flat, and the screw portion 3 cannot be screwed out of the in-mold nut 15 normally.

In a possible implementation mode (not shown in the figure), the annular baffle 4 is sleeved outside the connecting part 2, namely, the annular baffle 4 is a semicircular ring or an unclosed circular ring, the annular baffle 4 of the semicircular ring is installed at a position perpendicular to the axis of the screw body, and when the screw is screwed out, due to the fact that the annular baffle 4 is parallel to the screw seat 1, the screw can be screwed out in the process, and the phenomenon that the screw thread part 3 cannot be screwed out of the in-mold injection molding nut 15 normally due to the fact that the position of the annular baffle 4 is uneven can be avoided.

The utility model provides an in the mode that probably realizes (not shown in the figure), stop gear includes at least one stopper, the stopper sets up on connecting portion 2 global, when the stopper is a plurality of, every adjacent stopper sets up on the coplanar with screw body axis vertically, set up stop gear into one or more stopper, make the stopper can play the effect the same with ring baffle 4, after the screw is twisted out by 15 inside rotations of mould plastics nut in the mould, under the effect of stopper, the stopper can be blockked by screw retaining groove 18, thereby further make the screw can not drop by battery cover 11, thereby avoided because of the volume of screw less, and lead to the screw to dismantle the completion back again, easy emergence is lost, the emergence of difficult searching phenomenon.

In one possible implementation manner, as shown in fig. 2, 3, and 10, a screw seat 1 is provided with a receiving groove 8 for placing a buckle 5, a cutting groove 7 is provided on a surface of the screw seat 1 away from a connecting portion 2, when a screw is screwed into an in-mold injection nut 15 through a screw retaining groove 18 during use, the buckle 5 is at a working position at the time, so that a worker can conveniently screw the screw, after the screw is screwed, the buckle 5 is switched from the working position to a reset position, the buckle 5 can be accommodated into the receiving groove 8 under the action of the receiving groove 8, so that the buckle 5 does not protrude out of a side surface of the screw seat 1 away from the connecting portion 2, after the screw is installed, the buckle 5 does not protrude out of a side surface of the screw seat 1 away from the connecting portion 2, thereby ensuring that the whole machine is smooth, and the buckle 5 is not used in the whole machine, affecting the normal use of the mobile terminal.

And cut slot 7's effect, can make the embodiment of the utility model provides an under the prerequisite of artifical bare-handed dismantlement, can dismantle with the help of external instrument equally, improved the practicality of screw.

In addition, referring to fig. 2 and 3, when the handle 5 is at the reset station, the handle 5 is received in the receiving groove 8, the bottom wall of the accommodating groove 8 can limit the buckle handle 5, and at this time, the surface of one side of the buckle handle 5 far away from the connecting part 2 and the surface of one side of the screw seat 1 far away from the connecting part 2 are on the same plane, when the screw driver is used, the buckle 5 is continuously kept at the reset station, when the screw needs to be disassembled, the buckle 5 is switched to the working station, the buckle 5 rotates relative to the screw base 1 under the action of the rotating shaft 6, when the handle 5 rotates to the side wall of the accommodating groove 8, the side wall of the accommodating groove 8 can limit the handle 5, so that the maximum rotation angle of the handle 5 is 90 degrees, and the screw can be screwed conveniently to the maximum extent by a worker through the button handle 5 which is at an angle of 90 degrees relative to the screw base 1.

In a possible implementation manner, as shown in fig. 6-9, the handle 5 is rotatably connected to the screw base 1 through the rotating shaft 6, the screw base 1 is provided with a first rotating shaft hole 9 for installing the rotating shaft 6, the handle 5 is provided with two second rotating shaft holes 10 on the same straight line, and the rotating shaft 6 sequentially passes through one of the second rotating shaft holes 10, the first rotating shaft hole 9 and the other second rotating shaft hole 10; alternatively, the first and second electrodes may be,

the handle 5 is rotationally connected with the screw base 1 through a hinge, one end of the hinge is arranged on the screw base 1, and the other end of the hinge is connected with the handle 5.

Therefore, the above components include the rotating shaft 6 for rotationally connecting with the handle 5, referring to fig. 9, the rotating shaft and the first rotating shaft hole and the second rotating shaft hole in fig. 9 are all separately arranged, only in the using process, the rotating shaft will be rotationally connected with the first rotating shaft hole and the two second rotating shaft holes, and fig. 2 and fig. 3 are schematic diagrams of the rotating shaft 6 being installed on the screw seat 1, before installing the screw, the second rotating shaft holes 10 formed on the handle 5 need to be placed on both sides of the first rotating shaft hole 9, that is, the two second rotating shaft holes 10 are in the same straight line with the first rotating shaft hole 9, so that at this time, the rotating shaft 6 can sequentially pass through one of the second rotating shaft holes 10, the first rotating shaft hole 9 and the other second rotating shaft hole 10, the rotating shaft 6 is assembled on the screw seat 1, and under the action of the rotating shaft 6, the handle 5 can be switched from the reset station to the working station, the switching process is smoother.

In addition, in a possible embodiment (not shown in the figures), one of the two second rotating shaft holes 10 may be a blind hole, that is, the second rotating shaft hole 10 on the side of the two second rotating shaft holes 10 far away from the first rotating shaft hole 9 is sealed, and the rotating shaft 6 is also blocked by the other second rotating shaft hole 10 after sequentially passing through one of the second rotating shaft holes 10 and the first rotating shaft hole 9, so that the catcher 5 is rotatably connected with the screw base 1.

In a possible embodiment (not shown in the drawings), a hinge for rotating the handle 5 is arranged on the handle 5, one end of the hinge is arranged on the surface of the handle 5, the other end of the hinge is arranged on the screw seat 1, the handle 5 can also rotate relative to the screw seat 1 under the action of the hinge, so that the handle 5 can be screwed out from the inside of the accommodating groove 8, and after the handle 5 rotates to be vertical to the screw seat 1, the hinge can limit the handle 5, and meanwhile, the hinge is matched with the side wall of the accommodating groove 8, so that the maximum rotating angle of the handle 5 is 90 degrees, and a dual-limiting mode is adopted, and further, the handle 5 can be convenient for a worker to screw the screw to the maximum extent.

In a second aspect, the embodiment of the present invention provides a mobile terminal, as shown in fig. 15 to fig. 20, the mobile terminal includes a battery cover 11, a housing 12 and the screw as above, a mounting groove for accommodating the battery cover 11 is provided on the housing 12, the battery cover 11 is buckled on the housing 12, a first locking groove 14 for accommodating the screw is provided on the mounting groove, a diameter of an inscribed circle of the first locking groove 14 is greater than a diameter of an circumscribed circle of a limiting mechanism, an in-mold injection nut 15 is provided on a bottom surface of the first locking groove 14, and the in-mold injection nut 15 and a thread portion 3 are connected through a thread.

In a possible implementation manner, as shown in fig. 6, 11 and 12, a screw retaining groove 18 for accommodating a screw is formed on the battery cover 11, and the diameter of a circumscribed circle of the limiting mechanism is larger than that of an inscribed circle of the screw retaining groove 18; alternatively, the first and second electrodes may be,

the battery cover 11 further comprises at least one buckling mechanism 13, the buckling mechanism 13 is arranged on one side of the battery cover 11 far away from the screw retaining groove 18, the buckling mechanism 13 and the battery cover 11 are of an integrated structure, buckling grooves corresponding to the buckling mechanisms 13 one to one are formed in the shell 12, and the buckling mechanisms 13 are clamped with the buckling grooves.

Therefore, when the embodiment of the present invention is used, it needs to be used in cooperation with the housing 12, and at first, a mounting groove for accommodating the battery cover 11 is formed on the housing 12, so that during the use, the fastening mechanism 13 is inserted into the fastening groove, and at first, under the action of the side of the battery cover 11 away from the screw where the fastening mechanism 13 is disposed, a preliminary interference fit is performed, so that the battery cover 11 is initially mounted on the housing 12,

meanwhile, the diameter of the inscribed circle of the first locking groove 14 is larger than that of the circumscribed circle of the limiting mechanism, when the screw is inserted into the screw retaining groove 18 to a certain extent, the side wall of the first locking groove 14 cannot be in contact with the side wall of the screw and extends into the screw inside the first locking groove 14, the threaded portion 3 can be in threaded connection with the in-mold injection molding nut 15, so that the threaded portion 3 can be screwed into the in-mold injection molding nut 15, the screw seat 1 is matched again, and the battery cover 11 can be limited for the second time.

In a possible implementation manner, as shown in fig. 7, the screw seat 1, the connecting portion 2 and the threaded portion 3 may be integrated with each other, that is, the screw is an integrated mechanism except the handle 5 and the rotating shaft 6, so that the integrated structure ensures the overall strength of the screw, and avoids the phenomenon that the screw is damaged as a whole due to frequent abrasion with the in-mold injection molding nut 15 after the screw is used for a long time.

In a possible implementation manner, as shown in fig. 8, the shape of the handle 5 is a U-shaped structure, and two second rotation shaft holes 10 on the same straight line are opened at two ends of the U-shaped structure away from each other, so that when the handle 5 of the U-shaped structure is placed on the screw seat 1, the two second rotation shaft holes 10 and the first rotation shaft hole 9 are on the same straight line, which is convenient for the rotation shaft 6 to further rotationally connect the handle.

In a possible implementation manner, as shown in fig. 17-20, when the battery cover 11 is installed behind the housing 12, the first locking groove 14 and the screw retaining groove 18 are located at collinear positions, so that it can be ensured that the screw is inserted into the first locking groove 14 through the screw retaining groove 18, and the threaded portion 3 of the screw body can be accurately matched with the in-mold injection nut 15, thereby ensuring the stability of screwing out and locking of the screw in the overall structure of the embodiment of the present invention.

In a possible implementation manner, as shown in fig. 4 and 5, the battery cover 11 further includes an annular waterproof rib 16, the annular waterproof rib 16 is disposed on a surface of the battery cover 11 close to the side of the housing 12, a waterproof rubber ring 17 is disposed inside the first locking groove 14, a limiting groove 19 that is in interference fit with the annular waterproof rib 16 is disposed on the waterproof rubber ring 17, as shown in fig. 20, under the action of the limiting groove 19, the annular waterproof rib 16 can be accurately connected with the limiting groove 19, thereby ensuring that the medium such as dust, water vapor and the like in the external environment can not enter the whole machine from the gap when the whole machine is used, improving the tightness and the waterproof performance of the whole mechanism, further effectively ensuring that after the whole machine is used for a long time, the internal circuit board can not generate short circuit due to moisture media such as water vapor in the external environment.

In the mode that one kind probably realized, as shown in fig. 5, annular waterproof muscle 16 is around setting up at battery cover 11 periphery on the surface to after battery cover 11 and casing 12 lock finish, can be sealed the clearance between battery cover 11 and the casing 12 junction around battery cover 11 periphery on the surface waterproof muscle 16 of annular, guaranteed the utility model discloses the holistic waterproof performance of embodiment, further having avoided, moist medium enters into the emergence to the inside phenomenon of casing among the external environment, has prolonged the life of complete machine.

The embodiment of the utility model provides an in-process when using, battery cover 11 is at the lock back on casing 12, as shown in fig. 20, and annular waterproof muscle 16 at this moment contacts with waterproof rubber ring 17, and under the 19 effects of spacing groove that annular waterproof muscle 16 was seted up on waterproof rubber ring 17, can adopt interference fit's connected mode between the two to realize the waterproof performance of complete machine.

In the mode that one kind probably realized (not shown in the figure), waterproof muscle and/or waterproof rubber ring 17 are the rubber material, utilize the plasticity and the elasticity of rubber self to make the interference fit that can be better between waterproof muscle 16 of annular and the waterproof rubber ring 17 be in the same place, play waterproof, sealed effect to the inside of whole built-in.

Thereby for prior art, the embodiment of the utility model provides an increase rotatable attacker 5 to make the screw when the in-process of dismantling, can only need the staff on the basis of the attacker 5 who switches to the workstation with the help of external instrument, manually rotate attacker 5, and then drive screw seat 1 and rotate, make screw portion 3 screw portion 15's the inside back-out of moulding plastics by the mould.

Therefore, the embodiment of the utility model provides a be applied to mobile terminal, for example when trade law enforcement record appearance, the utility model provides an embodiment is:

before the industry law enforcement recorder is produced and assembled, a battery needs to be installed inside the industry law enforcement recorder in advance, when the battery cover 11 is installed and used, a screw needs to be installed on the battery cover 11, at the moment, the second rotating shaft holes 10 formed in the handle 5 are manually placed on two sides of the first rotating shaft hole 9, namely, the two second rotating shaft holes 10 and the first rotating shaft hole 9 are on the same straight line, the rotating shaft 6 can sequentially penetrate through one second rotating shaft hole 10, the first rotating shaft hole 9 and the other second rotating shaft hole 10, the rotating shaft 6 is assembled on the screw seat 1, and the handle 5 can be switched from a resetting station to a working station under the action of the rotating shaft 6;

the battery cover 11 is buckled on the shell 12 by the buckling mechanism 13 through manual work, when a screw is inserted into the screw blocking groove 18, the side wall of the first locking groove 14 cannot be in contact with the side wall of the screw and extends into the screw inside the first locking groove 14, the threaded portion 3 can be in threaded connection with the in-mold injection nut 15, so that the threaded portion 3 can be screwed into the in-mold injection nut 15, the screw seat 1 is matched, the battery cover 11 can be limited for the second time, in addition, after the battery cover 11 is buckled on the shell 12, the annular waterproof rib 16 is in contact with the waterproof rubber ring 17 at the moment, and under the action of the limiting groove 19 formed in the waterproof rubber ring 17 by the annular waterproof rib 16, the two can be in an interference fit connection mode, and the waterproof performance of the whole machine is realized.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. A screw, is applied to mobile terminal, mobile terminal includes the battery cover, its characterized in that includes:

the screw comprises a screw body and a screw seat, wherein the screw body comprises a threaded part, a screw seat and a connecting part for connecting the threaded part and the screw seat, a buckle is arranged on the screw seat, the buckle is provided with a working station and a reset station relative to the screw seat, when the buckle is positioned at the working station, the buckle extends out of the surface of one side of the screw seat, which is far away from the connecting part, and when the buckle is positioned at the reset station, the buckle does not extend out of the surface of one side of the screw seat, which is far away from the connecting part;

and the limiting mechanism is arranged on the circumferential surface of the connecting part and is used for preventing the screw from falling off after the screw is arranged on the battery cover.

2. The screw of claim 1, wherein the distance between the limiting mechanism and the surface of the screw seat on the side close to the connecting part is H, the length of the threaded part is H, and H and H satisfy the following relation:

H＞h。

3. the screw of claim 1, wherein the limiting mechanism comprises an annular baffle plate, the annular baffle plate is sleeved outside the connecting part, and the annular baffle plate is perpendicular to the axis of the screw body.

4. The screw according to claim 3, wherein said limiting mechanism comprises at least one limiting block, said limiting block is disposed on the circumference of said connecting portion, when said limiting blocks are plural, each adjacent limiting block is disposed on the same plane perpendicular to the axis of said screw body.

5. The screw of claim 1, wherein the screw housing defines a receiving slot for receiving the locking mechanism, and wherein the surface of the screw housing remote from the connecting portion defines a cutting channel.

6. The screw according to claim 1, wherein the handle is rotatably connected to the screw base via a shaft, the screw base is provided with a first shaft hole for mounting the shaft, the handle is provided with two second shaft holes in the same straight line, and the shaft passes through one of the second shaft holes, the first shaft hole and the other second shaft hole in sequence; alternatively, the first and second electrodes may be,

the attacker pass through the hinge with the screw base rotates to be connected, the one end of hinge set up in on the screw base, the other end of hinge with the attacker is connected.

7. A mobile terminal is characterized by comprising a battery cover, a shell and the screw according to any one of claims 1 to 6, wherein the shell is provided with a mounting groove for accommodating the battery cover, the battery cover is buckled on the shell, the mounting groove is provided with a first locking groove for accommodating the screw body, the diameter of an inscribed circle of the first locking groove is larger than that of an circumscribed circle of a limiting mechanism, the bottom surface of the first locking groove is provided with an in-mold injection nut, and the in-mold injection nut is in threaded connection with a threaded part.

8. The mobile terminal according to claim 7, wherein the battery cover is provided with a screw retaining groove for accommodating the screw, and a diameter of a circumcircle of the limiting mechanism is larger than a diameter of an inscribed circle of the screw retaining groove; alternatively, the first and second electrodes may be,

the battery cover further comprises at least one buckling mechanism, the buckling mechanism is arranged on one side, away from the screw retaining groove, of the battery cover, the buckling mechanism and the battery cover are of an integrated structure, buckling grooves in one-to-one correspondence to the buckling mechanisms are formed in the shell, and the buckling mechanisms are clamped with the buckling grooves.

9. The mobile terminal according to claim 7, wherein the battery cover further comprises an annular waterproof rib, the annular waterproof rib is disposed on a surface of the battery cover close to one side of the housing, a waterproof rubber ring is disposed inside the first locking groove, and a limiting groove in interference fit with the annular waterproof rib is disposed on the waterproof rubber ring.

10. The mobile terminal according to claim 9, wherein the waterproof rib and/or the waterproof rubber ring are made of rubber.

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