CN110571596B

CN110571596B - Handle type locking structure

Info

Publication number: CN110571596B
Application number: CN201910791601.1A
Authority: CN
Inventors: 李刘生; 怀小宝
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2021-01-05
Anticipated expiration: 2039-08-26
Also published as: CN110571596A

Abstract

A handle type locking structure comprises a plug shell and a handle, wherein a spring plate is arranged on the handle, the handle further comprises a locking plate inserted in a jack surrounded by the spring plate and the handle, a positioning sliding table, a cantilever and an elastic arm are arranged on the locking plate, a clamping block and a clamping buckle are arranged at the movable end of the elastic arm, a stopping block matched with the clamping block in a stopping mode is arranged on the handle, a through groove is formed between the two sides of the spring plate and the handle, the clamping buckle is arranged in the through groove in a sliding mode, a clamping lug is arranged on the plug shell and enters the through groove to be matched with the clamping buckle in a pushing mode when the handle and the plug shell are locked, so that the elastic arm is jacked up, the clamping block is enabled to be kept away from the stopping block, the locking plate is pushed to cross the stopping block, the locking plate moves from an unlocking position to a locking position, a protrusion. The invention can not push the locking sheet to the locking position when the handle and the plug shell are not locked, thereby preventing operation errors caused by unfamiliarity with products.

Description

Handle type locking structure

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a handle type locking structure applied to a high-voltage interlocking connector of an electric vehicle.

Background

In the electric automobile trade high pressure interlocking connector, handle locking is a locking structure commonly used, and the connector of current area handle locking structure is used for and this handle locking structure locking complex casing locking structure including rotating the handle of assembly on the plug housing and the plug housing that sets up, and during locking, the handle borrows behind the preliminary locking cooperation of the casing locking mechanism on its own handle locking mechanism and the plug housing, inserts the handle with the stay again and can restrict handle locking structure's unblock. The handle locking structure used at the present stage has certain limitation or defect in function, namely before the handle rotates to the locking position, the locking piece can be pushed forwards and reaches the final locking position of the locking piece, and after the locking piece is completely pushed, the handle cannot be really locked. The locking structure is not beneficial to operation by people unfamiliar with products, and can cause the deformation and damage of the products by mistakenly thinking that the handle is not completely rotated in place and forcibly pushes the handle to the locking position, or cause the misjudgment that the connector is apparently completely locked but is actually not completely locked in place because the locking piece is completely in place after the handle is rotated and locked and the handle cannot really reach the locking position; this may affect the assembly efficiency of the entire vehicle, and even present a safety hazard in the use process after the assembly is completed.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a handle type locking structure, which cannot continuously push a locking piece to a final locking position when a handle and a plug housing are not locked, so as to prevent an operation error caused by unfamiliarity with products.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the invention, the handle type locking structure comprises a plug shell and a handle which is rotatably assembled on the plug shell, wherein the handle is provided with an elastic sheet, the bottom of the movable end of the elastic sheet is provided with a barb, and the plug shell is provided with a clamping groove which is matched with the barb to realize the locking of the handle and the plug shell; the handle type locking structure further comprises a locking sheet which is inserted into a jack formed by surrounding of the elastic sheet and the handle after the barb is locked and matched with the clamping groove and is used for limiting the movement of the elastic sheet, a positioning sliding table which is arranged in a hanging mode is arranged in the middle of the locking sheet, cantilevers are symmetrically arranged on two sides of the locking sheet, a positioning groove is formed in the side portion of the cantilever, an elastic arm is arranged on the locking sheet located between the cantilever and the positioning sliding table, and a clamping block and a clamping buckle are arranged at the movable end of; the handle is provided with a stop block which is arranged on the inner wall of the jack and is matched with the block in a stop way when the locking sheet is positioned in the unlocking position, a through groove is arranged between the two sides of the elastic sheet and the handle, the buckle is arranged in the through groove in a sliding way, the plug shell is provided with a clamping lug, the clamping lug enters the through groove when the handle and the plug shell are locked and is matched with the buckle in a pushing way so as to jack the elastic arm and enable the clamping block to avoid the stop block, the locking sheet is pushed to enable the clamping block to cross the stop block so as to enable the locking sheet to move from the unlocking position to the locking position, the handle is provided with a bulge which is matched with the positioning groove in a clamping way when the locking sheet is positioned in the locking position, and the movable end of the elastic.

The invention is further realized by adopting the following technical scheme.

In the handle type locking structure, the positioning sliding table is provided with the guide groove extending along the length direction of the positioning sliding table, and the handle is provided with the slide rail which is positioned on the inner wall of the insertion hole and is in sliding fit with the guide groove.

In the handle type locking structure, the cantilever is provided with the limiting block, and the handle is provided with the limiting buckle which is positioned on the inner wall of the jack and is in stop fit with the limiting block to prevent the locking piece from being separated from the jack.

In the handle type locking structure, the through groove extends along the insertion direction of the locking piece.

In the above handle-type locking structure, the movable end of the elastic sheet is provided with a handle for unlocking the handle and the plug housing.

According to the handle type locking structure, when the handle and the plug shell are not locked, the clamping block on the locking sheet is jacked by the stopping block on the handle, so that the locking sheet cannot be pushed to the locking position from the unlocking position, and operation errors caused by unfamiliarity with products are prevented; when the handle and the plug shell are locked through the buckling of the barb and the clamping groove, the clamping lug on the plug shell jacks up the elastic arm on the locking sheet and enables the clamping block on the elastic arm to avoid the stop block, and then the locking sheet is continuously pushed to smoothly push the locking sheet to the locking position, so that the locking mechanism has a strict operation sequence, prevents the locking sheet from being pushed forwards and reaching the final locking position before the handle rotates to the locking position, and further avoids the possibility that the handle cannot be really locked in place after the locking sheet is completely pushed, and other misoperation caused by the fact that the handle cannot be really locked in place.

Drawings

Fig. 1 is a perspective view of a handle type locking structure according to an embodiment of the present invention.

Fig. 2 is a schematic view of the handle and the plug housing in an unlocked state according to the embodiment of the handle type locking structure of the present invention.

Fig. 3 to 4 are schematic views of the handle structure in the embodiment of the handle type locking structure of the present invention.

Fig. 5 is a schematic view of the internal structure of the jack in the embodiment of the handle-type locking structure of the present invention.

Fig. 6 to 7 are schematic structural views of the locking piece in the embodiment of the handle type locking structure of the present invention.

FIG. 8 is a cross-sectional view of the locking plate in the unlocked position in accordance with the exemplary embodiment of the handlebar-style locking arrangement of the present invention.

Fig. 9 is an enlarged view of a portion a in fig. 8.

Fig. 10 is a schematic sectional view of the locking plate after the handle is locked with the plug housing according to the embodiment of the handle type locking structure of the present invention.

Fig. 11 is an enlarged view of a portion B in fig. 10.

FIG. 12 is a cross-sectional view of the locking plate in the locked position in accordance with an embodiment of the present invention.

Fig. 13 is an enlarged view of a portion C in fig. 12.

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 present invention is shown in fig. 1 to 7, and a handle type locking structure includes a plug housing 2 and a handle 1 rotatably assembled on the plug housing, a lock cylinder 5 corresponding to a lock groove 4 on the handle 1 is disposed on a socket housing 3 adapted to the plug housing, and the lock cylinder 5 and the lock groove 4 can be matched to realize one-time locking after the plug housing 2 and the socket housing 3 are plugged by rotating the handle 1, wherein the structure and the matching principle of the lock groove and the lock cylinder are the prior art, and are not described herein again.

The handle 1 comprises a connecting rod part connected with the plug shell 2 and a cross rod part connecting the two connecting rods, the locking groove 4 is arranged on the connecting rod part, and the handle 1 is in running fit with the plug shell through the connecting rod part. Be equipped with shell fragment 11 on the horizontal pole part at handle middle part, and shell fragment 11 and handle 1 be integrated into one piece structure, and the one end that shell fragment 11 and handle 1 are connected is stiff end 111, the other end is expansion end 112, is equipped with barb 113 in expansion end 112 bottom of handle, and is equipped with on plug housing 2 and realizes the draw-in groove 21 of handle and plug housing locking with barb 113 cooperation, and the handle is locked on plug housing through this barb. Because the barb 113 is located at the movable end of the elastic sheet, and the elastic sheet 11 has elasticity, the handle and the plug housing can be locked without applying external force during locking, but the movable end 112 of the elastic sheet needs to apply acting force during unlocking to deform the elastic sheet 11, so that the clamping fit relationship between the barb 113 and the clamping groove 21 is released to realize unlocking, and in order to facilitate unlocking, a handle 114 is arranged at the movable end of the elastic sheet 11 in the embodiment.

The elastic sheet 11 and the handle 1 are enclosed to form a jack 12, a locking sheet 6 is inserted in the jack 12 in a sliding mode, and the locking sheet 6 is assembled in the jack 12 in a guiding and sliding mode along the extending direction of the elastic sheet 11. 6 middle parts of lock piece are equipped with the location slip table 61 that the overhang set up, and 6 bilateral symmetry of lock piece are equipped with cantilever 62, are located to be equipped with on the lock piece between cantilever 62 and the location slip table 61 and play the arm 63, and the expansion end that should play the arm 63 is equipped with fixture block 631 and buckle 632, plays the arm 63 and sets up two and symmetrical arrangement, and lock piece 6 is whole to be the axisymmetric structure part. The cantilever 62 is provided with a limiting block 621, and the handle 1 is provided with a limiting buckle 121 which is located on the inner wall of the insertion hole 12 and is in stop fit with the limiting block 621 to prevent the locking piece 6 from being disengaged from the insertion hole 12. The handle 1 is further provided with a stop block 122 which is located on the inner wall of the insertion hole 12 and is used for stop-matching with the fixture block 631, the stop block 122 is used for limiting the locking piece 6 at an unlocking position as shown in fig. 9, so that the locking piece 6 cannot be continuously pushed into the insertion hole 12, and the pushing direction of the locking piece into the insertion hole is defined as the inserting direction; the limit buckle 121 limits the locking piece 6 from being separated from the insertion hole 12 from the unlocking position to the direction opposite to the insertion direction. Be equipped with the logical groove 123 that extends along the cartridge direction of lock plate between 11 both sides of shell fragment and the handle, lead to the groove 123 and set up at 12 inner walls of jack, lead to the groove 123 for 11 symmetrical arrangement of shell fragment, buckle 632 sets up in leading to the groove 123 after lock plate 6 inserts jack 12. Referring to fig. 8 and 9, when the locking plate 6 is inserted into the insertion hole 12 and located at the unlocking position, the fixture block 631 is abutted by the stopper 122, and the locking plate 6 cannot be further pushed toward the insertion direction, at this time, the stopper 621 has passed over the limiting buckle and the two are in stop fit to prevent the locking plate 6 from coming out of the insertion hole, and the buckle 632 is located in the through groove 123. When the locking piece 6 is located at the unlocking position, the positioning sliding table 61 is not in contact with the supporting block 115 arranged at the movable end of the elastic sheet 11, and the movable end 112 of the elastic sheet 11 can deform under the action of external force and release the locking of the elastic sheet 11 and the plug housing 2.

Referring to fig. 10 and 11, the plug housing 2 is provided with the engaging lugs 22 corresponding to the through grooves 123 one by one, when the handle 1 rotates and is locked with the plug housing 2, the barbs 113 are connected with the engaging lugs 21 in a snap-fit manner to realize primary locking of the handle and the plug housing, at this time, the engaging lugs 22 enter the through grooves 123 and are in a push-fit manner with the snap-fit buckles 632 located in the through grooves 123 to jack the elastic arms 63, and after the elastic arms 63 deform and are jacked, the engaging blocks 631 located at the movable ends of the elastic arms 63 can avoid the stop blocks 122 in the insertion direction of the locking pieces; in addition, since the stopper buckle 121 is in stop fit with the stopper 621 to prevent the locking piece 6 from being separated from the insertion hole 12, the locking piece will not be separated from the insertion hole in the whole process of pushing the buckle 632 and pushing up the elastic arm 63 by the clamping lug 22. Then, the locking piece 6 is continuously pushed in the inserting direction to make the fixture block 631 pass over the stop block 122, and meanwhile, the buckle 632 is also connected with the clamping lug 22 in a buckling manner to limit the locking piece, so that the locking piece 6 finally reaches the locking position shown in fig. 12, and the elastic arm 63 is also restored to the initial state when the locking piece is in the unlocking position.

Referring to fig. 13, when the locking plate 6 is completely inserted into the locking position, the positioning sliding table 61 moves to a position above the supporting block 115 disposed at the movable end 112 of the elastic sheet, the top surface of the positioning sliding table 61 abuts against the inner wall of the insertion hole 12 on the handle, and the bottom surface abuts against the supporting block 115, at this time, the movable end 112 of the elastic sheet is abutted against by the positioning sliding table 61, and the elastic sheet 11 is obstructed in the unlocking movement direction, so that unlocking cannot be achieved. In this embodiment, in order to conveniently identify that the locking piece 6 is inserted and closed to the locking position and to ensure that the locking piece 6 is kept not to move at the locking position, the side portion of the cantilever 62 is provided with the positioning groove 622, the handle 1 is provided with the protrusion 124 which is positioned on the inner wall of the insertion hole and is in clamping fit with the positioning groove 622, when the locking piece 6 is positioned at the locking position, the positioning groove 622 is in clamping fit with the protrusion 124, and the locking piece 6 cannot move freely at this time.

Preferably, in this embodiment, the positioning sliding table 61 is provided with a guide groove 611 extending along the length direction of the positioning sliding table, the handle 1 is provided with a slide rail 125 located on the inner wall of the insertion hole 12 and slidably engaged with the guide groove 611, and the guide groove 611 is engaged with the slide rail 125 to realize the accurate guiding and sliding insertion of the locking plate 6 into the insertion hole 12.

When the invention is assembled and used, the locking piece 6 is firstly inserted into the insertion hole 12 by force fit, the limiting block 621 is matched with the limiting buckle 121 to limit the locking piece 6 to be separated from the insertion hole 12, the locking piece 6 can slide back and forth along the extending direction of the elastic sheet 11, but the locking piece is limited by the stop block 122 and can only move to the unlocking position as shown in fig. 9 at most. After the plug housing 2 and the socket housing 3 are plugged, the lock cylinder 5 enters the arc-shaped lock groove 4, the barb 113 on the elastic sheet 11 is clamped into the clamp groove 21 of the plug housing 2 after the handle 1 is rotated to the locking position, and the locking of the handle 1 and the plug housing 2 is realized. Meanwhile, the snap 22 enters the through groove 123 to be in pushing fit with the buckle 632, the elastic arm 63 is jacked up, then the locking piece 6 is pushed towards the direction from the unlocking position to the locking position, the snap passes through the stop block and the buckle, the elastic arm is restored to be deformed to a free state after passing through the snap, until the positioning groove 622 and the protrusion 124 are in clamping fit to prove that the locking piece is inserted in place to the locking position, at the moment, the positioning sliding table 61 is abutted between the inner wall 12 of the jack and the supporting block 115, the movement of the elastic piece 11 towards the direction far away from the snap groove 21 is limited, and the unlocking cannot be performed even if external force.

When the handle 1 and the plug housing 2 are separated, the locking piece 6 is pulled away from the jack from the locking position toward the unlocking position, the buckle 632 is jacked up again under the jacking action of the clamping lug 22 to deform the elastic arm 63 to the jacking state shown in fig. 11, then the locking piece 6 is pulled towards the outside of the jack 12, the protrusion 124 is disengaged from the positioning groove 622, the elastic arm 63 resets after the clamping block passes over the stopping block and the buckle is separated from the clamping lug and the jacking matching relation is released, and at the moment, the locking piece is moved to the unlocking position from the locking displacement. The locking piece 6 can slide freely in the jack 12 but is limited by the limiting buckle 121, at this time, the handle 114 on the elastic sheet is operated to deform the movable end 112 of the elastic sheet 11 towards the direction away from the clamping groove 21, the locking between the handle 1 and the plug housing 2 is released, and finally, the handle is rotated to align the opening of the locking groove 4 with the locking column 5, so that the plug housing 2 can be pulled out from the socket housing 3.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.

Claims

1. The utility model provides a handle formula locking structure, includes plug housing and rotates the handle of assembly on plug housing, should be equipped with the shell fragment on hand, the expansion end bottom of this shell fragment is equipped with the barb, is equipped with on the plug housing to realize the draw-in groove of handle and plug housing locking with the barb cooperation, its characterized in that: the locking device is characterized by further comprising a locking sheet which is inserted into a jack formed by surrounding of the elastic sheet and the handle after the barb is locked and matched with the clamping groove and used for limiting the movement of the elastic sheet, wherein a positioning sliding table is arranged in the middle of the locking sheet in a hanging and extending mode, cantilevers are symmetrically arranged on two sides of the locking sheet, positioning grooves are formed in the side portions of the cantilevers, an elastic arm is arranged on the locking sheet located between the cantilevers and the positioning sliding table, and a clamping block and a clamping buckle are arranged; the handle is provided with a stop block which is arranged on the inner wall of the jack and is matched with the block in a stop way when the locking sheet is positioned in the unlocking position, a through groove is arranged between the two sides of the elastic sheet and the handle, the buckle is arranged in the through groove in a sliding way, the plug shell is provided with a clamping lug, the clamping lug enters the through groove when the handle and the plug shell are locked and is matched with the buckle in a pushing way so as to jack the elastic arm and enable the clamping block to avoid the stop block, the locking sheet is pushed to enable the clamping block to cross the stop block so as to enable the locking sheet to move from the unlocking position to the locking position, the handle is provided with a bulge which is matched with the positioning groove in a clamping way when the locking sheet is positioned in the locking position, and the movable end of the elastic.

2. A handle-type locking arrangement as claimed in claim 1, wherein: the positioning sliding table is provided with a guide groove extending along the length direction of the positioning sliding table, and the handle is provided with a slide rail which is positioned on the inner wall of the jack and is in sliding fit with the guide groove.

3. A handle-type locking structure according to claim 1 or 2, wherein: the cantilever is provided with a limiting block, and the handle is provided with a limiting buckle which is positioned on the inner wall of the jack and is matched with the limiting block in a stopping way so as to prevent the locking piece from being separated from the jack.

4. A handle-type locking structure according to claim 1 or 2, wherein: the through groove extends along the insertion direction of the locking sheet.

5. A handle-type locking structure according to claim 1 or 2, wherein: and a handle used for unlocking the handle and the plug shell is arranged at the movable end of the elastic sheet.