CN212462230U

CN212462230U - Novel locking structure

Info

Publication number: CN212462230U
Application number: CN202021477934.1U
Authority: CN
Inventors: 李�昊; 李刘生; 郭辉; 韩见强
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-02-02
Anticipated expiration: 2030-07-23

Abstract

A novel locking structure comprises a plug shell and a socket shell, wherein a mounting hole is formed in the top of the plug shell, an elastic sheet is arranged in the mounting hole, a locking hook in snap fit with a locking groove of the socket shell is arranged at the movable end of the elastic sheet, a locking hole is formed between the elastic sheet and the inner wall of the mounting hole in a surrounding mode, and a locking sheet is slidably inserted in the locking hole; the middle part of the locking sheet is provided with a middle cantilever, the two sides of the locking sheet are symmetrically provided with side cantilevers, the front end of the middle cantilever is provided with a middle boss and a side boss, and the middle of the elastic sheet is provided with a guide groove and a first baffle table; mounting hole both sides inner wall symmetry is equipped with spacing platform, and spacing platform inboard is equipped with the second and keeps off the platform, is equipped with the anticreep key on the side cantilever, and the lock block forms when removing in the lockhole and unlocks position and locking position, and when the lock block was in the locking position, recess on the side cantilever and the protruding key cooperation of lockhole inner wall, thereby the side cantilever front end is pressed and is established on the lock block of shell fragment activity end department in order to avoid the shell fragment perk to realize secondary locking, the utility model relates to a simply ingenious has more logical sequence nature during locking, and the size is littleer, the structural arrangement of being convenient for.

Description

Novel locking structure

Technical Field

The utility model belongs to the technical field of the connector, in particular to novel locking structure on energy storage connector.

Background

The research and development of the energy storage technology are always paid attention by various countries, the construction scale of the energy storage station is increased day by day, meanwhile, the development of the lithium battery industry is powerfully promoted by the high-speed development of the electric automobile, and the recycling of the lithium battery inevitably brings a new application opportunity in the field of energy storage. Because in the energy storage station, the energy storage modules are connected with high voltage and high current, certain danger exists, and the connector is required to have the functions of CPA (secondary locking) and anti-touch fingers. In order to realize the functions, the energy storage connector at the present stage uses a complex locking structure, increases the number of parts, and leads to a large product volume, for example, a snap-on type elastic pin locking mechanism arranged on a plug, or a buckle structure which is matched with a shell of the plug and a shell of a socket and has a secondary locking function is arranged, and the like, and under the influence of a high-frequency vibration environment or other external force factors, the locking structure is easy to vibrate, loosen and lose efficacy.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of current prior art existence, the utility model provides an energy storage connector is with novel locking structure makes the connector design simpler, the structure is more ingenious, the volume is littleer and the locking effect is better under the condition that realizes same function.

The purpose of the utility model and the technical problem thereof are realized by adopting the following technical scheme. According to the utility model provides a novel locking structure, including the plug casing and the socket casing of adaptation, plug casing top is equipped with the mounting hole, is equipped with the shell fragment in the mounting hole, and the shell fragment rear end is fixed at the plug casing top in the mounting hole, and the front end is the expansion end that sets up towards the direction overhang of mounting hole front end, and the expansion end bottom is equipped with the latch hook that realizes once locking with the locked groove buckle cooperation of socket casing, encloses into a lockhole between shell fragment and the mounting hole inner wall, and sliding cartridge locking piece in the lockhole;

the middle part of the locking sheet is provided with a middle cantilever which is arranged in a suspending way, two sides of the locking sheet are symmetrically provided with side cantilevers which are arranged at intervals with the middle cantilever, the front end of the middle cantilever is provided with a middle boss and side bosses which are symmetrically arranged at two sides of the middle boss, and the middle of the elastic sheet is provided with a guide groove and first baffle tables which are symmetrically arranged at two sides of the guide groove; mounting hole both sides inner wall symmetry is equipped with spacing platform, and spacing platform inboard is equipped with the second and keeps off the platform, is equipped with the anticreep key on the side cantilever, and the lock piece forms when removing in the lockhole and unlocks the position and locks the position:

when the locking piece is in the unlocking position, the side boss is in stop fit with the first blocking platform to prevent the locking piece from moving forwards to the locking position, and the anti-falling key is in stop fit with the second blocking platform to prevent the locking piece from falling out of the locking hole;

after the plug shell and the socket shell are locked once, the plug shell jacks up the middle bulge so as to enable the front end of the middle cantilever to be tilted, and further enable the side boss to avoid the first blocking platform in the inserting direction, and at the moment, the locking sheet can be pushed to move from the unlocking position to the locking position;

when the lock spacer is in locking position, the recess that sets up on the side cantilever cooperates with the convex key on the lockhole inner wall and makes the lock spacer fix a position in the cartridge direction, and the side cantilever is spacing between spacing platform and lockhole inner wall and the side cantilever front end is pressed and is established in order to avoid shell fragment expansion end perk at the lock bench that shell fragment expansion end department set up to realize secondary locking.

The purpose of the utility model is further realized by adopting the following technical measures.

In the locking structure, the mounting hole is integrally formed with the plug housing.

In the locking structure, the movable end of the elastic sheet is provided with a force applying handle for releasing the primary locking relationship between the plug housing and the socket housing.

In the locking structure, the rear end of the locking piece is provided with the plugging part which is convenient for plugging the locking piece along the plugging direction.

In the locking structure, the front end of the anti-dropping key is provided with the first inclined plane, and the rear end of the second baffle table is provided with the second inclined plane matched with the first inclined plane.

In the locking structure, the locking platform and the limiting platform are located at the same height and are arranged at intervals.

In the locking structure, the front end of the first baffle table is set as the third inclined plane, and the rear end of the side boss is set as the fourth inclined plane matched with the third inclined plane so as to facilitate the locking piece to move from the locking position to the unlocking position.

In the locking structure, the front end and the rear end of the middle boss are provided with the guide inclined planes which are convenient for sliding matching with the socket shell when the locking piece moves between the unlocking position and the locking position.

In the locking structure, the top of the mounting hole shell right above the middle cantilever is outwards protruded and an avoiding groove for the middle cantilever to tilt upwards when the plug shell and the socket shell are locked once is formed inside the lock hole.

The locking structure is characterized in that the thickness of the rear end of the middle cantilever towards the front end direction is gradually reduced, the top surface of the middle cantilever is lower than that of the side cantilever, the middle sliding table in sliding fit with the middle cantilever is symmetrically arranged in the middle of the elastic piece and is lower than the side sliding tables in sliding fit with the two sides of the elastic piece and the side cantilever, the first baffle table is arranged on the corresponding middle sliding table, the guide groove is formed by a gap between the two middle sliding tables, the front end of the side sliding table is the locking table, and the middle sliding table and the junction of the side sliding table with the same side form an L-shaped guide rail which plays a guiding and inserting role for the.

Borrow by above-mentioned technical scheme, the utility model discloses before the headstock is not inserted and is closed, keep off the platform through first fender platform and second and fix the lock spacer in the position of unblocking, the headstock is inserted and is closed the back, the middle cantilever of lock spacer is lifted by socket shell and is liberated the ascending degree of freedom of lock spacer in the cartridge direction, just can promote lock spacer to locking the position after the headstock is inserted and is closed to target in place, make the shell fragment can't lift and realize secondary locking function, compare the structure with prior art technique simpler, the size is littleer, the structural arrangement of being more convenient for.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a perspective view of the locking piece of the present invention in the unlocked position.

Fig. 2 is a schematic view of the mounting hole and the locking hole of the present invention.

Fig. 3 is a schematic perspective view of the locking piece of the present invention.

Fig. 4 is a schematic sectional view of the locking piece of the present invention.

Fig. 5 is a schematic structural view of the middle spring piece of the present invention.

Fig. 6 is a schematic view of the assembly of the locking piece and the plug housing according to the present invention.

Fig. 7 is a schematic diagram of the stop cooperation between the side boss and the first stop when the locking plate of the present invention is in the unlocking position.

Fig. 8 is a schematic diagram of the stop cooperation between the anti-disengagement key and the second stop when the locking piece is in the unlocking position.

Fig. 9 is a state diagram of the middle boss being jacked up when the plug housing and the socket housing of the present invention are locked once.

Fig. 10 is a schematic view showing a positional relationship between the lower boss and the first stopper in a state where the intermediate boss is lifted in fig. 9.

Fig. 11 is a schematic view of the locking piece of the present invention in the locking position.

Fig. 12 is a schematic sectional view of the locking piece of the present invention in the locking position.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings.

The specific embodiment of the utility model is shown in fig. 1 to 12, a novel locking structure, including plug housing 1 and socket housing 2 of adaptation, for the convenience of description, this embodiment defines the plug housing's insertion end as the front end, plug housing top is equipped with integrated into one piece's mounting hole 3, it provides assembly and complex space for lock plate 5 and shell fragment 4 to be in the mounting hole, be equipped with shell fragment 4 in the mounting hole, the shell fragment rear end is the stiff end, be used for fixing the shell fragment at the plug housing top in mounting hole 3, the shell fragment front end sets up to the expansion end that overhangs, expansion end department is equipped with application of force handle 7 so that lift up the expansion end of shell fragment; the bottom of the movable end is provided with a latch hook 41, and in the process of inserting the plug housing and the socket housing in place, because the elastic sheet has elasticity, the movable end is firstly jacked up by the socket housing in the inserting process and then resets under the elasticity and is in snap fit with a corresponding latch groove 21 on the socket housing to realize a primary locking function so as to prevent the socket housing from being separated from the plug housing.

Enclose into a lockhole 6 between shell fragment 4 and the 3 inner walls of mounting hole, sliding cartridge has the lock piece 5 of secondary locking function in the lockhole, and lock piece 5 middle part has middle cantilever 51 that the overhang set up, and bilateral symmetry is equipped with side cantilever 52, and side cantilever and middle cantilever interval set up and at its rear end integrated connection shaping, and the lock piece rear end is established to plug portion 53, the manual plug of being convenient for, and whole lock piece is the axisymmetric part. The front end of the middle cantilever is provided with a middle boss 54 and side bosses 55 symmetrically arranged at two sides of the middle boss, the middle part of the elastic sheet is provided with a guide groove 42 running through along the front-back direction, the guide groove is in guide sliding fit with the middle boss 54 and is used for guiding the insertion of the locking sheet, and the direction from the rear end to the front end is the insertion direction of the locking sheet in the embodiment; the front end of the middle part of the elastic sheet 4 is symmetrically provided with first stop platforms 43 which are in one-to-one corresponding stop fit with the side bosses 55, the two sides of the plug shell positioned in the mounting hole are symmetrically provided with limiting platforms 11, the inner sides of the limiting platforms are provided with second stop platforms 12, and the side cantilever is provided with an anti-falling key 56 which is in stop fit with the second stop platforms 12 in the insertion direction of the locking sheet. When the locking piece is inserted into the locking hole for the first time, the locking piece is inserted into the locking hole in a forced installation manner, the first inclined surface 561 at the front end of the anti-falling key is in sliding fit with the second inclined surface 121 at the rear end of the second stop table so as to facilitate insertion, the side cantilever 52 is jacked up by the second stop table 12 during insertion, the locking piece is continuously pushed towards the front end direction so that the anti-falling key 56 crosses the second stop table 12, the side cantilever 52 returns to a straight state, the anti-falling key and the second stop table form a stop fit relation in the insertion direction, as shown in fig. 8, so as to prevent the locking piece from being separated from the locking hole towards the rear end direction, at this time, the side cantilever 55 and the first stop table 43 also form a stop fit relation in the insertion direction, and the locking piece cannot be continuously pushed towards the front end direction, as shown in fig. 7, so far, the locking piece is in an; when the locking mechanism is located at the unlocking position, the movable end of the locking piece is not affected by the locking piece, namely, the locking platform 44 arranged at the movable end is not contacted with the side cantilever, and the movable end can be lifted upwards under the action of external force to deform and remove the buckling fit relation between the locking hook 41 at the bottom of the elastic piece and the matching locking groove 21 of the socket shell. It is worth to be noted that, by means of the front and rear limiting structure of the locking piece, the locking piece can be prevented from advancing to the locking position under the influence of external force before the plug shell and the socket shell are locked for the first time, so that the secondary locking is more logical, and misoperation of operators is prevented; for example, the locking piece may be pushed into the secondary locking position first, and then the plug and the socket are forcibly locked once, so that the locking piece is deformed or the connector housing is deformed. Secondly, when carrying out separation plug casing and socket casing later on, the lock plate can not break away from plug casing when moving to the position of unblock from the locking displacement yet, and the lock plate is difficult for losing, and plug efficiency is higher.

As shown in fig. 9, after the plug housing and the receptacle housing are inserted in place, the latch hook is in snap fit with the receptacle housing to achieve a first locking, and at this time, the middle boss 54 is jacked up by the receptacle housing 2, and the front end of the middle cantilever 51 is tilted, so that the side bosses 55 located at both sides of the middle boss can avoid the first stopping table 43 in the insertion direction of the locking piece, as shown in fig. 10 specifically; in addition, since the second stop 12 is in stop fit with the anti-slip key 56, the locking piece will not be disengaged from the locking hole in the process that the middle boss is pushed by the socket housing. Then, the locking piece is continuously pushed towards the inserting direction, so that the side bosses 55 cross the first blocking platforms 43 until the locking piece reaches the locking position shown in fig. 11, the front end of the middle cantilever falls down and returns to the initial form when the locking piece is at the unlocking position, and at the moment, the middle boss 54 also falls into a locking groove on the socket shell, which is in snap fit with the locking hook, and the recovery form of the middle cantilever is not influenced; the locking groove is designed into an annular locking groove, so that multi-angle insertion locking on the circumferential direction of the head seat can be realized. In order to realize that the locking piece is spacing along the cartridge in the direction when being in the locking position, set up fluted 57 in the side cantilever outside, the plug housing lateral wall that is located lockhole 6 inside is equipped with convex key 13, and the locking piece location is realized in the snap-fit of recess and convex key when the locking piece reachs the locking position, has guaranteed that the locking piece can't freely move under the high-frequency vibration environment.

As shown in fig. 12, when the locking plate is located at the locking position, the upper and lower end surfaces of the side cantilevers are respectively limited by the inner wall of the top of the lock hole and the upper surface of the limiting table 11, and the locking tables 44 and the limiting table 11 are located at the same height and are distributed at intervals in parallel, so that the front ends of the two side cantilevers correspondingly press the locking tables 44 symmetrically arranged at the two sides of the movable end one by one, the movable end of the elastic sheet cannot be lifted, and the secondary locking function is realized.

Preferably, in order to facilitate the locking piece to move from the locking position to the unlocking position, the front end of the first baffle is provided with a third inclined surface 431, and the rear end of the side boss is provided with a fourth inclined surface 551 matched with the third inclined surface; the front end and the rear end of the middle boss are also provided with guide inclined planes 541 which are convenient for sliding matching with the socket shell when the locking piece moves between the unlocking position and the locking position.

In this embodiment, the thickness of the rear end of the middle cantilever in the direction of the front end is sequentially decreased, and the height of the top surface of the middle cantilever is lower than that of the top surfaces of the side cantilevers, for example, the bottom surface of the middle cantilever is a horizontal plane and the top surface is an inclined plane, in combination with fig. 4; correspondingly, the middle sliding tables 45 which are symmetrically arranged in the middle of the elastic sheet and are in sliding fit with the middle cantilever are lower than the side sliding tables 46 which are arranged on the two sides of the elastic sheet and are in sliding fit with the side cantilevers, the first blocking tables 43 are arranged on the corresponding middle sliding tables 45, the guide groove is formed by a gap between the two middle sliding tables, and the front ends of the side sliding tables are the locking tables 44, so that under the structural design, an L-shaped guide rail is formed at the junction of the middle sliding table and the side sliding tables on the same side, and the middle cantilever can be guided and limited during insertion; and the clearance between the side sliding table and the limiting table forms a space for the anti-drop key to slide along the insertion direction of the locking sheet. Furthermore, the top of the mounting hole shell positioned right above the middle cantilever is arranged in an outward protruding manner, and an avoiding groove 14 for the middle cantilever to tilt upwards when the plug shell and the socket shell are locked at one time is formed in the lock hole.

In another embodiment, if the difference between the height of the upper surface of the middle cantilever at the middle boss and the height of the upper surface of the side cantilever is greater than the front end stress tilting height of the middle elastic arm, the side boss can be enabled to avoid the first blocking platform in the insertion direction of the locking piece when the middle boss is jacked up without providing an avoiding groove.

When the plug shell 1 is separated from the socket shell 2, the locking sheet 5 is firstly pulled away from the locking hole 6 from the locking position towards the unlocking position, the middle boss is jacked up by the socket shell, the middle cantilever tilts therewith, the side boss 55 is released from the blocking matching relation with the first blocking table 43 in the insertion direction, then the inserting and pulling part 53 of the elastic sheet is continuously pulled towards the rear end direction, the side boss crosses the first blocking table, the middle cantilever resets, the locking sheet moves from the locking position to the unlocking position, the front end of the side cantilever 52 is not contacted with the locking table 44 any more, the secondary locking fails, the force application handle 7 is lifted at the moment, the locking hook is separated from the locking groove which is arranged on the socket shell and matched with the locking hook, and finally the plug shell is pulled out from the socket shell, and the separation of the plug and the socket can be completed.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can easily modify, change or modify the above embodiments according to the technical spirit of the present invention without departing from the scope of the present invention.

Claims

1. A novel locking structure comprises a plug shell and a socket shell which are matched, and is characterized in that a mounting hole is formed in the top of the plug shell, an elastic sheet is arranged in the mounting hole, the rear end of the elastic sheet is fixed to the top of the plug shell in the mounting hole, the front end of the elastic sheet is a movable end which is arranged in a hanging mode towards the direction of the front end of the mounting hole, a locking hook which is matched with a locking groove of the socket shell in a buckling mode to achieve primary locking is arranged at the bottom of the movable end, a locking hole is formed between the elastic sheet and the inner wall of the mounting hole in;

2. A novel locking structure as claimed in claim 1, wherein: the mounting hole and the plug housing are integrally formed.

3. A novel locking structure as claimed in claim 1, wherein: the movable end of the elastic sheet is provided with a force application handle used for releasing the one-time locking relationship between the plug shell and the socket shell.

4. A novel locking structure as claimed in claim 1, wherein: the rear end of the locking piece is provided with a plugging part which is convenient for plugging the locking piece along the plugging direction.

5. A novel locking structure as claimed in claim 1, wherein: the anti-falling key front end is provided with a first inclined plane, and the second baffle table rear end is provided with a second inclined plane matched with the first inclined plane.

6. A novel locking structure as claimed in claim 1, wherein: the locking platform and the limiting platform are located at the same height and are arranged at intervals.

7. A novel locking structure as claimed in claim 1, wherein: the front end of the first baffle table is set as a third inclined surface, and the rear end of the side boss is set as a fourth inclined surface matched with the third inclined surface so as to facilitate the locking piece to move from the locking position to the unlocking position.

8. A novel locking structure as claimed in claim 1 or 7, wherein: the front end and the rear end of the middle boss are provided with guide inclined planes which are convenient to slide with the socket shell when the locking sheet moves between the unlocking position and the locking position.

9. A novel locking structure as claimed in claim 1, wherein: the top of the mounting hole shell right above the middle cantilever is outwards convexly arranged and forms an avoiding groove for the middle cantilever to tilt upwards when the plug shell and the socket shell are locked for one time in the lock hole.

10. A novel locking structure as claimed in claim 1, wherein: the thickness of middle cantilever rear end to the front end direction diminishes in proper order, and middle cantilever top surface height is less than the top surface height of side cantilever, and the middle slip table that sets up in the middle of the shell fragment and middle cantilever sliding fit highly is less than shell fragment both sides and side cantilever sliding fit's side slip table, and first fender platform is located on the middle slip table that corresponds, and the guide way comprises the clearance between two middle slip tables, and the side slip table front end does the lock platform for middle slip table with one side forms the L shape guide rail that plays the direction cartridge effect to middle cantilever with the side slip table juncture.