CN203729723U

CN203729723U - Bilateral locking device

Info

Publication number: CN203729723U
Application number: CN201420103988.XU
Authority: CN
Inventors: 苏新文
Original assignee: SHANGHAI QITIAN AUTO SCIENCE & TECHNOLOGY Co Ltd
Current assignee: SHANGHAI QITIAN AUTO SCIENCE & TECHNOLOGY Co Ltd
Priority date: 2014-02-14
Filing date: 2014-03-07
Publication date: 2014-07-23
Anticipated expiration: 2024-03-07

Abstract

The utility model relates to the technical field of locksets, in particular to a bilateral locking device, and aims to solve the technical problem that the existing device is inconvenient to maintain and low in assembly efficiency. The bilateral locking device comprises an outer cover plate, a main part, and a handle; the main part is fixed on the outer cover plate; the handle is pivoted to the main part; a left sliding shaft tube and a right sliding shaft tube are fixed to the back of the handle; a sliding shaft is disposed in each sliding shaft tube; the sliding shaft tubes and the sliding shafts therein drive the two sliding shafts to extend and retract by fitting of shaft tube guide ports and sliding shaft pins; each sliding shaft is provided with a shaft hole in the fastening end; the wall of each shaft hole is provided with two demounting holes; a stopper is fixed in each shaft hole; two locking bars are arranged on the left and right of the main part respectively; the hook end of each locking bar is inserted into the shaft hole of the corresponding sliding shaft; two elastic hooks at the hook end of each locking bar penetrate fastening holes in the corresponding shaft hole and hook the stopper in the shaft hole. The bilateral locking device is applicable to covers for automotive glove boxes.

Description

Bilateral locking device

Technical field

The utility model relates to lockset technology, particularly relates to a kind of technology of bilateral locking device.

Background technology

Number of patent application is that 200310103473.6 Chinese patent discloses a kind of locking device, this device can be used on Vehicular instrument panel by the rotating glove box of axial support, this device is equipped with pair of cams parts, a pair of Compress Spring, pair of O type circle in the cylindrical part inside of operating grip rear side, on the excircle of cam part, be formed with cam path; During rotating operation handle, be formed on ledge on handle cylindrical part inner surface and move along the groove edge of cam path, cam part is retracted to the inside in cylindrical part; During unclamp operation handle, under the effect of Compress Spring, cam part stretches out laterally, and O type circle relies on the frictional force of circumference to slow down to cam part, prevents larger strike note; Cam part is connected with the sliding axle in Vehicular instrument panel lockhole, and by cam part, being retracted or stretched drives sliding axle in the lockhole of instrument panel, retract or stretch out, thereby realize, opens or closes glove box; In addition, in one end of each cam part, be set with combined hole, one end of each sliding axle is the elastic component that is shaped to bifurcation structure, and this elastic component has the protuberance removably engaging with the lock hole of cam part.

Above-mentioned locking device has following defect:

1) sliding axle is not quick detachable after being connected with cam part, while dismantling impaired parts in device maintenance process, easily damages associated member, safeguards very inconvenient;

2) though left and right cam part shape is similar, can not exchange, be difficult to identification about during assembling, loading error easily occurs, affect assembling work efficiency;

3) spring need be assembled to after cam part endoporus in advance, then is installed in the cylindrical part of handle to insert the mode of rotation, and assembling work is complicated, and man-hour is longer, assembling work inefficiency;

4) in order to close strike note, be provided with O type circle, utilize the friction between the neighboring of O type circle and the cylindrical part inner surface of handle to slow down the reset movement speed of spring to cam part, but the dimensional accuracy of O type circle is difficult to control, the oversize frictional force of O type circle also can be excessive, can affect lever operated power or cause sliding axle not reset completely, thereby have influence on the normal use of locking device, the undersized frictional force of O type circle can be not enough to effectively overcome the elastic force of spring, still strike note can occur;

5) endoporus of handle cylindrical part is realized by the mould structure of slipper block loose core, and the handle that this mould structure is made can be formed with wedge angle at edge, scratch hand while easily causing operating grip, and assembling safety is lower.

Utility model content

For the defect existing in above-mentioned prior art, technical problem to be solved in the utility model be to provide a kind of easy to maintenance, assembling is simple, can improve efficiency of assembling, and can effectively eliminate the strike note of unblanking in lock operation process, the bilateral locking device that assembling safety is high.

In order to solve the problems of the technologies described above, a kind of bilateral locking device provided by the utility model, comprises outer cover plate, main element, handle;

Described main element is fixed on outer cover plate, described handle and main element pivot joint, the pivot axis of handle is first axle, the back of handle is fixed with each slide-bar cylinder of left and right, in each slide-bar cylinder, be equipped with the sliding axle of an activity, the axis of two sliding axles all overlaps with first axle, and the back of handle is equipped with for ordering about two sliding axles mobile Compress Spring dorsad; It is characterized in that:

Each slide-bar cylinder all offers at least one beam barrel targeting port on barrel, it is to take the left-hand screw limit that first axle is the axis of screw that each beam barrel targeting port on left slide-bar cylinder all has a side, and it is to take the right-hand screw limit that first axle is the axis of screw that each the beam barrel targeting port on right slide-bar cylinder all has a side;

On each sliding axle, be all fixed with at least one slide-bar pin, each slide-bar pin on left sliding axle is movable each beam barrel targeting port inserting on left slide-bar cylinder respectively, and each slide-bar pin on right sliding axle is movable each beam barrel targeting port inserting on right slide-bar cylinder respectively;

Each sliding axle joint end that one end of another sliding axle is this sliding axle dorsad, each sliding axle all offers coaxial axis hole at its joint end, and axial symmetry offers two removal holes that connect hole wall on the hole wall of axis hole, and in axis hole, be fixed with a block, at block middle part, offer blocked hole;

Described main element each side have a locking bar, the corresponding left sliding axle of left locking bar wherein, the corresponding right sliding axle of right locking bar, every equal one end of locking bar has wedge shape dead bolt, the other end has two elastic fastening hooks, every locking bar has the tongue end that one end of dead bolt is this locking bar, and the other end is the hook end of this locking bar;

The hook end of every locking bar inserts the axis hole of corresponding sliding axle joint end with gap fiting mode, and two elastic fastening hooks of this locking bar hook end hook the block in this axis hole after through the blocked hole in this axis hole.

Further, the beam barrel targeting port on each slide-bar cylinder barrel is all towards the unidirectional opening of another slide-bar cylinder direction.

Further, the beam barrel targeting port on each slide-bar cylinder barrel is all triangular in shape.

Further, every locking bar all offers rod end guide groove at its hook end, and each sliding axle is all equipped with at least one radially to projecting inward interior guiding rib on the shaft hole inner wall of its joint end;

In each in the joint end axis hole of every sliding axle, guiding rib snaps in the rod end guide groove of corresponding locking bar hook end with gap fiting mode, and this sliding axle is locked on circumferentially with corresponding locking bar.

Further, the back side of described outer cover plate is fixed with each annular locking bar buckle of left and right, and described main element is between two locking bar buckles;

The tongue end of left locking bar is towards a left side, and its shaft is the inner ring through left locking bar buckle with gap fiting mode, and the tongue end of right locking bar is towards the right side, and its shaft is the inner ring through right locking bar buckle with gap fiting mode.

Further, on described main element, offer each main body stomidium of left and right, on the hole wall of each main body stomidium, all there is at least one stomidium bayonet socket; Two slide-bar cylinders are between two main body stomidiums of main element, and the axle body of left sliding axle is with gap fiting mode through left main body stomidium, and the axle body of right sliding axle passes right main body stomidium with gap fiting mode;

The equal axial symmetry of outer wall of each sliding axle is equipped with at least one outer guiding rib of vertical bar shaped that radially outward protrudes and be parallel to first axle, each outer guiding rib on left sliding axle snaps in respectively each stomidium bayonet socket of left main body stomidium, make the locking on circumferentially of left sliding axle and left main body stomidium, each outer guiding rib on right sliding axle snaps in respectively each stomidium bayonet socket of right main body stomidium, makes the locking on circumferentially of right sliding axle and right main body stomidium.

Further, the outer wall of each sliding axle is all formed with one and radially outward protrudes and the annular slide-bar back-up ring coaxial with it, on each sliding axle, all coaxial sleeve is equipped with one and has flexible annular slide-bar bumper ring, slide-bar bumper ring on left sliding axle and the laminating of the slide-bar back-up ring left surface on this sliding axle, and can slide into the inner face that props up left slide-bar cylinder left end with this sliding axle, slide-bar bumper ring on right sliding axle and the laminating of the slide-bar back-up ring right flank on this sliding axle, and can slide into the inner face that props up right slide-bar cylinder right-hand member with this sliding axle.

Further, on described main element, be fixed with for two sliding axle subtends each release limit rib of spacing left and right that slides, slide-bar pin on left sliding axle can slide into the left surface that props up left release limit rib with left sliding axle, and the slide-bar pin on right sliding axle can slide into the right flank that props up right release limit rib with right sliding axle.

Further, the Compress Spring at described handle back has two, on described handle, be fixed with each spring planet of left and right, wherein the right-hand member of a Compress Spring props up left spring supporting plate, left end props up left sliding axle, the left end of another root Compress Spring props up right spring planet, right-hand member props up right sliding axle, on described main element, be fixed with for two Compress Springs and stretch each spring limit rib of spacing left and right, when left Compress Spring extends to left spring limit rib place, the left end of left Compress Spring props up left spring limit rib, when right Compress Spring extends to right spring limit rib place, the right-hand member of right Compress Spring props up right spring limit rib.

The bilateral locking device that the utility model provides, has following beneficial effect:

1) because sliding axle and locking bar adopt the grab syndeton with removal hole, while dismantling impaired parts in device maintenance process, by removal hole, be easy to instrument, elastic fastening hook and the sliding axle of locking bar hook end be departed from, can easily dismantle locking bar, the miscellaneous parts such as sliding axle also can easily further be dismantled and change, can effectively avoid damaging associated member, safeguard very convenient;

2) because the axle construction that horizontally slips is identical, can avoid loading error, and sliding axle and spring be to be all directly encased in slide-bar cylinder from the subtend one direction of two slide-bar cylinders, have that assembling work is simple, convenient, short feature consuming time, can improve assembling work efficiency;

3) because slide-bar bumper ring does not contact slide-bar cylinder inner peripheral surface, move back and forth the not impact of slide-bar bumper ring on sliding axle, can avoid handle not exclusively to reset and the defective situation of operating physical force, and when spring promotes sliding axle Rapid reset, there is flexible slide-bar bumper ring and prior to sliding axle, clash into the inner face of slide-bar cylinder, can effectively eliminate the strike note of unblanking in lock operation process;

4) because two slide-bar cylinders are only required the unidirectional opening in subtend, slide-bar cylinder can be realized by the mould structure of interior side loose core, in mould manufacture, outside slide block structure need to be set in handle both sides, handle neighboring can be provided with fillet, and the beam barrel targeting port on slide-bar cylinder is all triangular in shape, scratch hand in the time of preventing assembling and operating grip, assembling safety is higher.

Accompanying drawing explanation

Fig. 1 is the three-dimensional exploded view of the bilateral locking device of the utility model embodiment;

Fig. 2 is the rear perspective view of the handle in the bilateral locking device of the utility model embodiment;

Fig. 3 is the rear elevation of the handle in the bilateral locking device of the utility model embodiment;

Fig. 4 is the stereogram of the sliding axle in the bilateral locking device of the utility model embodiment;

Fig. 5 is the joint end end view of the sliding axle in the bilateral locking device of the utility model embodiment;

Fig. 6 is the front view of the right sliding axle in the bilateral locking device of the utility model embodiment;

Fig. 7 is the bilateral locking device of the utility model embodiment while being in the lock state, the position relationship schematic diagram of handle, sliding axle and Compress Spring;

Fig. 8 be the bilateral locking device of the utility model embodiment when released state, the position relationship schematic diagram of handle, sliding axle and Compress Spring;

Fig. 9 is the rear perspective view of the main element in the bilateral locking device of the utility model embodiment;

Figure 10 is the main parallax stereogram of the main element in the bilateral locking device of the utility model embodiment;

Figure 11 is the bilateral locking device of the utility model embodiment while being in the lock state, the position relationship schematic diagram of handle and main element;

Figure 12 be the bilateral locking device of the utility model embodiment when released state, the position relationship schematic diagram of handle and main element;

Figure 13 is the stereogram of the right locking bar in the bilateral locking device of the utility model embodiment;

Figure 14 is locking bar in the bilateral locking device of the utility model embodiment and the connection diagram of sliding axle;

Figure 15 is the generalized section after the locking bar in the bilateral locking device of the utility model embodiment is connected with sliding axle;

Figure 16 is that the bilateral locking device of the utility model embodiment is removed the rear perspective view after inner cover plate;

Figure 17 is the rear perspective view of the bilateral locking device of the utility model embodiment;

Figure 18 is that schematic diagram is looked on the left side of the bilateral locking device of the utility model embodiment while being in the lock state;

Figure 19 is the bilateral locking device of the utility model embodiment while being in the lock state, the schematic top plan view after dissecing along the A-A line in Figure 18;

Figure 20 is that schematic diagram is looked on the bilateral locking device of the utility model embodiment left side when released state;

Figure 21 be the bilateral locking device of the utility model embodiment when released state, the schematic top plan view after dissecing along the B-B line in Figure 20;

Figure 22 is sliding axle in the bilateral locking device of another embodiment of the utility model and the connection diagram of Compress Spring.

The specific embodiment

Below in conjunction with accompanying drawing explanation, embodiment of the present utility model is described in further detail, but the present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof, all should list protection domain of the present utility model in.

As shown in Fig. 1-2 1, a kind of bilateral locking device that the utility model embodiment provides, comprises outer cover plate 8, main element 2, handle 1;

The back side of described outer cover plate 8 is fixed with each annular locking bar buckle 81(of left and right and sees Figure 16);

Described main element 2 is fixed on outer cover plate 8 and between two locking bar buckles, on main element, offer each main body stomidium 21(of left and right and see Fig. 9, Figure 10), on the hole wall of each main body stomidium 21, all there is the stomidium bayonet socket 211 that two axial symmetry distribute;

Described handle 1 and main element 2 pivot joints, the pivot axis of handle is first axle, the back of handle is fixed with each slide-bar cylinder 11(of left and right and sees Fig. 7, Fig. 8), these two slide-bar cylinders 11 are between two main body stomidiums of main element, in each slide-bar cylinder 11, be equipped with the sliding axle 5 of an activity, the axis of two sliding axles all overlaps with first axle, the back of handle is equipped with for ordering about two sliding axles 5 each Compress Spring 6 of mobile left and right dorsad, the upper end of handle and main element has the confined planes cooperatively interacting, maximum pivoting angle with restriction handle,

Each slide-bar cylinder 11 two leg-of-mutton beam barrel targeting port 12(that all axial symmetry offers towards the unidirectional opening of another slide-bar cylinder direction on barrel are shown in Fig. 2, Fig. 3), it is to take the left-hand screw limit that first axle is the axis of screw that each beam barrel targeting port 12 on left slide-bar cylinder all has a side 121, another side is the straight flange that is parallel to first axle, it is to take the right-hand screw limit that first axle is the axis of screw that each beam barrel targeting port 12 on right slide-bar cylinder all has a side 121, and another side is the straight flange that is parallel to first axle;

The outer wall of each sliding axle (seeing Fig. 4-Fig. 6) is all formed with one and radially outward protrudes and the annular slide-bar back-up ring 52 coaxial with it, on each sliding axle, all coaxial sleeve is equipped with one and has flexible annular slide-bar bumper ring 4(and see Fig. 1), slide-bar bumper ring on left sliding axle and the laminating of the slide-bar back-up ring left surface on this sliding axle, and can slide into the inner face that props up left slide-bar cylinder left end with this sliding axle, slide-bar bumper ring on right sliding axle and the laminating of the slide-bar back-up ring right flank on this sliding axle, and can slide into the inner face that props up right slide-bar cylinder right-hand member with this sliding axle;

On each sliding axle, all axial symmetry is fixed with two slide-bar pin 51(and sees Fig. 4-Fig. 6), each slide-bar pin 51 on left sliding axle is movable each beam barrel targeting port (seeing Fig. 7, Fig. 8) inserting on left slide-bar cylinder respectively, and each slide-bar pin 51 on right sliding axle is movable each beam barrel targeting port inserting on right slide-bar cylinder respectively;

The equal axial symmetry of outer wall of each sliding axle is equipped with two outer guiding rib 55(of vertical bar shaped that radially outward protrude and be parallel to first axle and sees Fig. 4-Fig. 6), the axle body of left sliding axle 5 is shown in Figure 11 with gap fiting mode through left main body stomidium 21(, Figure 12), and each the outer guiding rib 55 on left sliding axle 5 snaps in respectively each stomidium bayonet socket 211 of left main body stomidium, left sliding axle 5 and left main body stomidium 21 are locked on circumferentially, the axle body of right sliding axle 5 passes right main body stomidium 21 with gap fiting mode, and each the outer guiding rib 55 on right sliding axle 5 snaps in respectively each stomidium bayonet socket 211 of right main body stomidium, right sliding axle 5 and right main body stomidium 21 are locked on circumferentially,

Each sliding axle joint end that one end of another sliding axle is this sliding axle dorsad, each sliding axle (seeing Fig. 4-Fig. 6) all offers coaxial axis hole 53 at its joint end, and axial symmetry offers two removal holes 54 that connect hole wall on the hole wall of axis hole 53, and axial symmetry is equipped with two radially to projecting inward interior guiding rib 56 on shaft hole inner wall, in axis hole, be fixed with a block 57, at block 57 middle parts, offer blocked hole 571;

The locking bar 3(that each side has of described main element is shown in Fig. 1), the corresponding left sliding axle of left locking bar wherein, the corresponding right sliding axle of right locking bar, every equal one end of locking bar has wedge shape dead bolt 32(and sees Figure 13), the other end has two elastic fastening hooks 31 and offers rod end guide groove 33, every locking bar has the tongue end that one end of dead bolt is this locking bar, and the other end is the hook end of this locking bar;

The tongue end of left locking bar 3 is towards a left side, and its shaft is the inner ring (seeing Figure 16) through left locking bar buckle 81 with gap fiting mode, and the tongue end of right locking bar 3 is towards the right side, and its shaft is the inner ring through right locking bar buckle 81 with gap fiting mode;

The hook end of every locking bar 3 inserts the axis hole (seeing Figure 14, Figure 15) of corresponding sliding axle 5 joint ends with gap fiting mode, and two elastic fastening hooks 31 of this locking bar hook end hook the block 57 in this axis hole after through the blocked hole 571 in this axis hole;

Two interior guiding ribs 56 in the joint end axis hole of every sliding axle snap in the rod end guide groove 33 of corresponding locking bar hook end with gap fiting mode, this sliding axle 5 is locked on circumferentially with corresponding locking bar 3;

The back side of described outer cover plate 8 is fixed with an inner cover plate 9(and sees Fig. 1, Figure 17), this inner cover plate cover cap is lived main element, offers each cover board hole of left and right passing for two locking bars in inner cover plate.

In the utility model embodiment, on described main element (seeing Fig. 9, Figure 10), be fixed with for two sliding axle subtends each release limit rib 22 of spacing left and right that slides, slide-bar pin on left sliding axle can slide into the left surface that props up left release limit rib 22 with left sliding axle, slide-bar pin on right sliding axle can slide into the right flank that props up right release limit rib 22 with right sliding axle, can control the maximum sliding distance of two sliding axles by two release limit ribs.

In the utility model embodiment, described handle (is shown in Fig. 2, Fig. 7, Fig. 8), be fixed with each spring planet 13 of left and right, the right-hand member of left Compress Spring 6 props up left spring supporting plate 13, left end props up left sliding axle 5, the left end of right Compress Spring 6 props up right spring planet 13, right-hand member props up right sliding axle 5, described main element (is shown in Fig. 9, Figure 10), be fixed with for two Compress Springs and stretch each spring limit rib 23 of spacing left and right, when left Compress Spring extends to left spring limit rib 23 place, the left end of left Compress Spring props up left spring limit rib 23, when right Compress Spring extends to right spring limit rib 23 place, the right-hand member of right Compress Spring props up right spring limit rib 23, by two spring limit ribs, can control the spread length of two Compress Springs.

In the utility model embodiment, described sliding axle is coaxial socket with the connected mode of Compress Spring, insert in the inner ring of Compress Spring the end of sliding axle, slide-bar back-up ring on sliding axle props up the end of Compress Spring, in other embodiment of the utility model, also can towards one end of Compress Spring 6 ', offer coaxial blind hole at sliding axle 5 ' (seeing Figure 22), insert in the blind hole of sliding axle end the end of Compress Spring, and at the bottom of propping up the hole of blind hole.

In the utility model embodiment, the back of described handle (see figure 2) is fixed with each handle positioning bar 14 of left and right, on main element (seeing Fig. 9, Figure 10), offer for holding the handle locating slot 24 of two handle positioning bars, by coordinating of handle positioning bar and handle locating slot, handle is played to installation guide effect, and play position-limiting action in the direction of first axle.

In other embodiment of the utility model, the beam barrel targeting port quantity on single slide-bar cylinder can be also one or more, corresponding therewith, and the slide-bar pin quantity on single sliding axle can be also one or more.

In other embodiment of the utility model, the stomidium bayonet socket quantity on main body stomidium hole wall can be also one or more, corresponding therewith, and the outer guiding rib quantity of sliding axle outer wall can be also one or more.

In other embodiment of the utility model, on sliding axle, also slide-bar bumper ring can be set.

In other embodiment of the utility model, the interior guiding rib quantity in sliding axle joint end axis hole can be also one or more.

In the utility model embodiment, the installation step of each parts is as follows:

First two slide-bar bumper rings and two Compress Springs are respectively installed on two sliding axles, again two sliding axles are fitted into respectively in the slide-bar cylinder of left and right from the subtend of two slide-bar cylinders, then with two sliding axles of external force pushing, make two sliding axle subtends move to joint end and slide-bar cylinder end face, then handle is installed on main element, remove again external force, two sliding axles can pass respectively two main body stomidiums of main element under the elastic force effect of two Compress Springs, and then main element is screwed on outer cover plate, and then left and right locking bar buckle is respectively installed on outer cover plate, left and right locking bar is assembled to respectively on two sliding axles again, and respectively through left and right locking bar buckle, and then inner cover plate is installed on outer cover plate.

The utility model embodiment is suitable as the case lid of automobile glove box, during assembling, outer cover plate is articulated on automobile glove box to its operating principle following (take be assemblied on automobile glove box be example):

While closing glove box, wedge shape dead bolt 32 on two locking bars touches left and right lockhole 90(on automobile glove box and sees Figure 19, 21) after outward flange, under the compressing on edge, lockhole hole, two locking bar subtends move that (left locking bar to the right, right locking bar left), the thrust subtend that two sliding axles also overcome two Compress Springs thereupon moves that (left sliding axle to the right, right sliding axle left), slide-bar pin on two sliding axles slides along the straight flange of the beam barrel targeting port on two slide-bar cylinders respectively, until the slide-bar pin on two sliding axles slides into while propping up respectively left and right release limit rib with two sliding axles, locking device is in released state, when the wedge shape dead bolt on two locking bars arrives the lockhole inward flange on automobile glove box, lockhole hole is along the jacking force of two locking bars is removed, now under the thrust of Compress Spring, two sliding axles move that (left sliding axle left dorsad, right sliding axle to the right), two locking bars also move that (left locking bar left thereupon dorsad, right locking bar to the right), make two wedge shape dead bolts on locking bar snap in respectively the left and right lockhole on automobile glove box, automobile glove box is locked, locking device also returns to lock-out state,

While opening glove box, by the handle pivotable that makes progress, under the now spiral limit of the beam barrel targeting port on two slide-bar cylinders compressing, slide-bar pin on two sliding axles moves along the spiral limit of the beam barrel targeting port on two slide-bar cylinders, and then the thrust subtend that drives two sliding axles to overcome two Compress Springs moves, and (left sliding axle to the right, right sliding axle left), two locking bars also thereupon subtend move that (left locking bar to the right, right locking bar left), make to deviate from the left and right lockhole of two wedge shape dead bolts on locking bar from automobile glove box, thereby automobile glove box is unlocked,

In the time of need to changing left-hand side part, first pull down left locking bar, in the time of need to changing right side members, first pull down right locking bar, during dismounting locking bar, with instrument, pass through the elastic fastening hook of the removal hole pushing tow locking bar hook end on corresponding sliding axle, block in elastic fastening hook and sliding axle axis hole is broken off relations, pull out again locking bar, locking bar can be pulled down from corresponding sliding axle, can take off easily afterwards other parts and implement to change.

Claims

1. a bilateral locking device, comprises outer cover plate, main element, handle;

2. bilateral locking device according to claim 1, is characterized in that: the beam barrel targeting port on each slide-bar cylinder barrel is all towards the unidirectional opening of another slide-bar cylinder direction.

3. bilateral locking device according to claim 2, is characterized in that: the beam barrel targeting port on each slide-bar cylinder barrel is all triangular in shape.

4. bilateral locking device according to claim 1, is characterized in that: every locking bar all offers rod end guide groove at its hook end, and each sliding axle is all equipped with at least one radially to projecting inward interior guiding rib on the shaft hole inner wall of its joint end;

5. bilateral locking device according to claim 1, is characterized in that: the back side of described outer cover plate is fixed with each annular locking bar buckle of left and right, and described main element is between two locking bar buckles;

6. bilateral locking device according to claim 1, is characterized in that: on described main element, offer each main body stomidium of left and right, all have at least one stomidium bayonet socket on the hole wall of each main body stomidium; Two slide-bar cylinders are between two main body stomidiums of main element, and the axle body of left sliding axle is with gap fiting mode through left main body stomidium, and the axle body of right sliding axle passes right main body stomidium with gap fiting mode;

7. bilateral locking device according to claim 1, it is characterized in that: the outer wall of each sliding axle is all formed with one and radially outward protrudes and the annular slide-bar back-up ring coaxial with it, on each sliding axle, all coaxial sleeve is equipped with one and has flexible annular slide-bar bumper ring, slide-bar bumper ring on left sliding axle and the laminating of the slide-bar back-up ring left surface on this sliding axle, and can slide into the inner face that props up left slide-bar cylinder left end with this sliding axle, slide-bar bumper ring on right sliding axle and the laminating of the slide-bar back-up ring right flank on this sliding axle, and can slide into the inner face that props up right slide-bar cylinder right-hand member with this sliding axle.

8. bilateral locking device according to claim 1, it is characterized in that: on described main element, be fixed with for two sliding axle subtends each release limit rib of spacing left and right that slides, slide-bar pin on left sliding axle can slide into the left surface that props up left release limit rib with left sliding axle, and the slide-bar pin on right sliding axle can slide into the right flank that props up right release limit rib with right sliding axle.

9. bilateral locking device according to claim 1, is characterized in that: the Compress Spring at described handle back has two, on described handle, be fixed with each spring planet of left and right, wherein the right-hand member of a Compress Spring props up left spring supporting plate, left end props up left sliding axle, the left end of another root Compress Spring props up right spring planet, right-hand member props up right sliding axle, on described main element, be fixed with for two Compress Springs and stretch each spring limit rib of spacing left and right, when left Compress Spring extends to left spring limit rib place, the left end of left Compress Spring props up left spring limit rib, when right Compress Spring extends to right spring limit rib place, the right-hand member of right Compress Spring props up right spring limit rib.