CN213065029U

CN213065029U - Automatic double-locking connecting device with checking function

Info

Publication number: CN213065029U
Application number: CN202021397537.3U
Authority: CN
Inventors: 徐�明; 曹树林; 王楠; 申太明; 杨毅; 徐梓净; 韩宗俊
Original assignee: Chongqing Sulian Plastic Co ltd
Current assignee: Chongqing Sulian Plastic Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-04-27
Anticipated expiration: 2030-07-15

Abstract

The utility model discloses an automatic double-locking connecting device with a checking function, which comprises a male plug provided with a boss and a connecting sleeve (1), wherein a cavity is arranged in the connecting sleeve (1), one side of the connecting sleeve (1) is provided with a jack (11) communicated with the cavity, the other side of the connecting sleeve is provided with a mounting hole (12) communicated with the cavity, the connecting sleeve (1) is also symmetrically provided with two abdicating holes (13) communicated with the cavity, the inner wall of the cavity is provided with a first transition inclined plane (131), and the bottom surface is provided with a abdicating inclined plane (15); the cavity is internally provided with a locking block (2) and a positioning block (3) which extend into the cavity from a mounting hole (12) and are superposed up and down, and the locking block (2) is provided with an elastic reset plate (4). The utility model discloses set up the locating piece and take the locking piece of elasticity reset plate, the positive plug of dual locking in the adapter sleeve to the assembly condition in place that can swiftly inspect the positive plug, simple structure is compact, the simple operation.

Description

Automatic double-locking connecting device with checking function

Technical Field

The utility model relates to an auto-parts makes technical field, in particular to automatic double-locking connecting device with check-up function.

Background

At present, the quick connecting device widely applied to an automobile (fuel oil) pipeline system mainly adopts a single locking mechanism. Generally, the single-locking mechanism connecting device is unlocked under the action of external force (vibration, flying stones and the like) during working, so that the risk of leakage of a pipeline system is high. The problem can be well solved by improving a single locking mechanism into a double locking mechanism, and in the case that any one locking mechanism is unlocked and fails, the other locking mechanism can still lock the male connector assembled and connected with the other locking mechanism in the connecting device. Although there are several types of double-locking mechanism connecting devices that are used in automotive (fuel) piping systems. However, there are drawbacks in that the locking is unstable, in that a locking mechanism is easily released from the coupling device during the unlocking process, and whether the male joint is mounted in place cannot be verified.

Moreover, the conventional double-locking mechanism quick connecting device with the checking and error-proof functions cannot realize the automatic locking falling function of the double-locking mechanism, so that the assembly efficiency is low; in addition, the double lock mechanism connecting device often requires a large (locking & unlocking) operation space, and therefore, the design of the surrounding vehicle body structural environment and the mounting posture of the connecting device itself is influenced more.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an automatic double-locking connecting device that has a check-up function of dismouting both being convenient for, the inspection locking state of being convenient for again.

The technical scheme of the utility model as follows:

an automatic double-locking connecting device with a checking function comprises a male plug and a connecting sleeve, wherein the male plug is provided with a boss, the connecting sleeve is internally provided with a cavity, a locking block and a positioning block are stacked in the cavity, the connecting sleeve is provided with an inserting hole which penetrates up and down, one side of the connecting sleeve is provided with a mounting hole, the other side of the connecting sleeve is provided with two abdicating holes, the mounting hole is provided with a fixing block, and the fixing block is provided with a guide groove; the inner wall of the cavity is provided with a positioning column at one side position corresponding to the hole opening of the abdicating hole, a first transition inclined plane is arranged at the other side position corresponding to the hole opening of the abdicating hole, the bottom of the cavity adjacent to the bottom of the mounting hole is a horizontal plane, and a abdicating inclined plane is arranged at the bottom adjacent to the abdicating hole; the positioning block is symmetrically provided with two resetting cantilevers, an open slot is formed between the two resetting cantilevers, one side of each resetting cantilever is provided with a limit slot, the other side of each resetting cantilever is provided with a guide convex block, a stop block is arranged at the position, corresponding to the guide convex block, of the outer side surface of each resetting cantilever, a abdicating slot is formed between the two guide convex blocks and the positioning block and is communicated with the open slot, a section of second transition inclined plane is arranged at the position, corresponding to the upper end surface of each resetting cantilever, between the limit slot and the guide convex block at the corresponding end, and a section of inclined straight section is arranged at the position, corresponding to the second transition inclined plane, of the inner side wall of the open slot;

the locking block is provided with a through hole, one side of the orifice of the through hole is provided with a section of guide inclined plane, one side of the locking block is provided with a guide block inserted in the abdicating groove, the other side of the locking block is symmetrically provided with two extension sections extending horizontally outwards, one side of the extension end of each extension section is provided with a clamping block, a clamping groove is formed between the clamping block and the end surface of the corresponding end of the extension section and the locking block, and the lower end of the locking block is provided with a reset device.

By adopting the structure, the positioning block is firstly placed on the locking block, at the moment, the guide block is placed in the abdicating groove to extrude the extension sections at the two sides so as to lead the extending ends of the extension sections at the two sides to be close, and is put into the mounting hole, the lower end surface of the locking block is attached to the horizontal plane of the bottom surface of the cavity of the mounting sleeve, then, the positioning block and the locking block are pushed into the cavity at the same time, when the extension section moves to the first transition inclined plane position, in the moving direction, the position in the cavity corresponding to the first transition inclined plane is gradually widened, the guide block moves along the first transition inclined plane until the guide block is no longer contacted with the inner wall of the cavity, the extension sections at the two sides are gradually unfolded, finally, the clamping groove and the limiting groove formed among the clamping block, the extension section and the locking block are clamped on the positioning column together, meanwhile, the guide block extends into the yielding groove and is positioned between the two guide convex blocks, and the elastic reset plate is abutted against the outer side of the connecting sleeve.

When the plug is used, the male plug is inserted from top to bottom, the lower end face of a boss on the male plug is firstly abutted to a second transition inclined plane, the boss moves downwards along the inclined plane, meanwhile, the two reset cantilevers are outwards expanded under stress, then, the boss is abutted to the guide inclined plane, the boss presses the locking block downwards at the abutting position, the extending section of the locking block is bent downwards and is attached to the abdicating inclined plane, at the moment, the clamping groove is separated from the positioning column, the locking block moves towards the cavity for one section under the action of relative movement of the boss and the guide inclined plane, the upper end face of the corresponding position of the locking block is abutted to the lower end face of the positioning column for limiting, the elastic reset plate is compressed, contracted and deformed, the two reset cantilevers are folded, the inclined straight section of the inner side wall of the reset cantilever is abutted to the outer side wall of; treat that the boss passes through the locking piece after, the male plug inserts and targets in place, elasticity resets the board and rebounds under the elastic force effect, drives the locking piece and moves outward to the cavity, and when the draw-in groove moved the below of reference column, the up end that the locking piece corresponds the position no longer the butt spacing with the lower terminal surface of reference column, and locking piece pressurized position upwards lifts rapidly to make the draw-in groove fix a position with the reference column joint once more.

During disassembly, the extending sections on the two sides are pressed simultaneously to separate the clamping groove from the positioning column, one end of the locking block corresponding to the elastic reset plate is extruded to enable the locking block to move towards the cavity, the through hole position is opposite to the boss position of the male plug, then the positioning block is pushed to move inwards, the outer side of the male plug drives the reset cantilever to rapidly open along the inclination of the inclined straight section, and the abdicating groove is driven to separate from the positioning column, so that the male plug can be rapidly pulled out; finally, loosen the extension section, the locking piece moves to the mounting hole position under the elastic action of elasticity reset plate, and at this in-process, the guide block butt inner wall in groove of stepping down drives the locating piece and moves together to make draw-in groove and spacing groove joint once more on the reference column.

In above-mentioned operation process, if the boss of male plug does not install in place, can directly cause the location cantilever to be the state of opening always, male plug inserts the back can not fix spacing, perhaps the condition that the lock block can not push the adapter sleeve appears, or even can promote, nevertheless can not roll back and form the jamming, influence assembly efficiency, only install in place, the cantilever that resets can only retract, the lock block just can push into the adapter sleeve, this all is convenient for we to inspect the assembly condition of male plug, and simple structure is compact, the simple operation.

In order to reduce assembly interference and assembly clearance, preferably, the second transition inclined planes are both arc-shaped, the two second transition inclined planes form a circle, the diameter of the circle is matched with that of a boss on the male plug, and when the boss is abutted and moved on the second transition inclined planes from top to bottom, the two reset cantilevers are also outwards spread.

In order to reduce the assembling interference better, the clamping block is preferably provided with a round angle, and the other side of the extending end of the extending section is provided with a guide boss.

In order to simplify the structure, reach automatic re-setting's purpose simultaneously, as preferred, resetting means is including setting up the connecting block at the locking piece lower extreme be equipped with one section convex elasticity on the inside wall of connecting block and reset the board, elasticity resets and forms an upper and lower open-ended through-hole between board and the connecting block, the lateral wall on this elasticity resets board circular arc summit and the corresponding position butt in the adapter sleeve outside.

In order to reduce the play and improve the installation stability, preferably, an arc section is arranged on one side of the inclined straight section, which corresponds to the abdicating groove.

For the convenience of operation, as the preferred, all be equipped with anti-skidding groove on the lateral wall of locking piece and locating piece.

For convenience of manufacture, the resilient return plate is preferably made of a nylon 66 material.

For the convenience of production, the extension section, the fixture block and the guide block are preferably made of nylon 66 materials through integral injection molding; the positioning block, the reset cantilever, the guide convex block and the stop block are also made of nylon 66 materials through integral injection molding.

Has the advantages that: the utility model discloses set up the locating piece and take the locking piece of elasticity reset plate, the positive plug of dual locking in the adapter sleeve to the assembly condition in place that can swiftly inspect the positive plug, simple structure is compact, the simple operation.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a schematic structural diagram of the connecting sleeve.

Fig. 3 is a left side view of fig. 2.

Fig. 4 is a right side view of fig. 2.

Fig. 5 is a schematic view of the cavity structure of the connecting sleeve.

Fig. 6 is a schematic structural diagram of the positioning block.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a schematic structural diagram of the locking block.

Fig. 9 is a bottom view of fig. 8.

Fig. 10 is an assembly state diagram of the present invention.

Fig. 11 is a schematic view of a male plug and the installation structure of the present invention.

Fig. 12 is a schematic view of an installation process of the locking block, the positioning block and the connecting sleeve.

Fig. 13 is a schematic view of the detaching process of the locking block, the positioning block and the connecting sleeve.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, and fig. 13, the present invention comprises a male plug with a boss and a connecting sleeve 1, a cavity is provided in the connecting sleeve 1, a locking block 2 and a positioning block 3 are stacked in the cavity, and anti-slip grooves are provided on the outer side walls of the locking block 2 and the positioning block 3.

An inserting hole 11 which penetrates through the connecting sleeve 1 up and down is formed in the connecting sleeve 1, a mounting hole 12 is formed in one side of the connecting sleeve 1, two abdicating holes 13 are formed in the other side of the connecting sleeve 1, a fixing block 121 is arranged on the mounting hole 12, and a guide groove 122 is formed in the fixing block 121; on the inner wall of cavity, correspond one side position department in the hole 13 drill way of stepping down and respectively be equipped with a reference column 14, correspond the opposite side position department in the hole 13 drill way of stepping down and be equipped with one section first transition inclined plane 131, the bottom of this cavity neighbouring mounting hole 12 is the horizontal plane, and the bottom of neighbouring hole 13 of stepping down is equipped with one section inclined plane 15 of stepping down.

The positioning block 3 is symmetrically provided with two reset cantilevers 31, an open slot is formed between the two reset cantilevers 31, one side of each reset cantilever 31 is provided with a limit slot 311, the other side of each reset cantilever 31 is provided with a guide convex block 312, a stop block 32 is arranged at the position of the outer side surface of each reset cantilever 31 corresponding to the guide convex block 312, a abdicating slot 313 is formed between the two guide convex blocks 312 and the positioning block 3, the abdicating slot 313 is communicated with the open slot, a section of second transition inclined plane 314 is arranged at the position corresponding to the upper end surface of the reset cantilever 31 between the limit slot 311 and the guide convex block 312 at the corresponding end, the second transition inclined plane 314 is arc-shaped, the diameter of the second transition inclined plane 314 forms a circle, the diameter of the circle is matched with the diameter of the boss on the male plug, when the boss moves in an abutting manner on the second transition inclined plane 314 from top to, the two reset cantilevers 31 are also expanded outwards; a section of inclined straight section 315 is arranged at the position of the inner side wall of the open slot corresponding to the second transition inclined plane 314, and an arc section 316 is arranged at one side of the inclined straight section 315 corresponding to the abdicating slot 313.

A through hole 21 is arranged on the locking block 2, one side of the orifice of the through hole 21 is provided with a section of guide inclined plane 211, one side of the locking block 2 is provided with a guide block 22 inserted in the abdicating groove 313, the other side is symmetrically provided with two extending sections 23 extending horizontally outwards, a clamping block 231 is arranged on one side of the extending end of each extending section 23, a guiding convex platform 232 is arranged on the other side of the extending end, a round angle is arranged on the clamping block 231, a clamping groove structure is formed among the clamping block 231, the extension section 23 and the end surface of the corresponding end of the locking block 2, a connecting block 24 is arranged at the lower end of the locking block 2, a section of circular arc-shaped elastic reset plate 4 is arranged on the inner side wall of the connecting block 24, a through hole with an upper opening and a lower opening is formed between the elastic reset plate 4 and the connecting block 24, the outer side wall of the arc vertex of the elastic reset plate 4 is abutted against the corresponding position of the outer side of the connecting sleeve 1.

The elastic reset plate 4 is made of nylon 66 material; the extension section 23, the fixture block 231 and the guide boss 232 are integrally formed by injection molding of a nylon 66 material; the positioning block 3, the reset cantilever 31, the guide projection 312 and the stopper 32 are also made of nylon 66 material by integral injection molding.

The utility model discloses a use method as follows:

as shown in fig. 1 to 13, the positioning block 3 is first placed on the locking block 2, at this time, the guide block 22 is placed in the abdicating groove 313, the guide bosses 232 on both sides are pressed to make the extending ends of the extension sections 23 on both sides close to each other and placed in the mounting hole 12, the lower end surface of the locking block 2 is attached to the horizontal surface of the bottom surface of the cavity of the mounting sleeve 1, then, the positioning block 3 and the locking block 2 are simultaneously pushed into the cavity, when the guide boss 232 moves to the first transition inclined plane position 131, the position corresponding to the first transition inclined plane 131 in the cavity gradually moves in the moving direction, the guide boss 232 moves along the first transition inclined plane 131 until no longer contacting with the inner wall of the cavity, the extension sections 23 on both sides gradually expand, the clamping block 231 is provided with a round corner, when moving to the position of the positioning column 14, the abutting abdicating can be realized, and finally the limiting groove 311 and the clamping groove formed by the clamping block 231, the extension sections 23 and the locking block 2 are clamped to the positioning column, meanwhile, the guide block 22 extends into the receding groove 313 and is located between the two guide projections 312, and the elastic reset plate 4 abuts against the outer side of the connecting sleeve 1.

When in use, as shown in fig. 12 (in fig. 12, the upper row is an installation state diagram of the positioning block 3, the middle row is an installation state diagram of the locking block 2, the lower row is an installation state diagram of the elastic reset plate 4, in the figure, each vertical row is a moving state within the same time), a male plug (not shown) is inserted from top to bottom, the lower end face of a boss on the male plug is firstly abutted with the second transition inclined plane 314, the boss continues to move downwards along the inclined plane, meanwhile, the two reset cantilevers 31 are forced to be outwards opened, then, the boss is abutted with the guide inclined plane 211, in the abutting position, the boss presses the locking block 2 downwards, the extension section 23 of the locking block 2 is bent downwards and is attached with the abdicating inclined plane 15, at the moment, the clamping groove is separated from the positioning column 14, under the relative movement of the boss and the guide inclined plane 211, the locking block 2 moves inwards to a section, the upper end face of the corresponding position of the locking block 2 is abutted with the, the elastic reset plate 4 is compressed, contracted and deformed, the two reset cantilevers 31 are folded, the arc section 316 is attached to the corresponding position outside the male plug, the side wall of the inclined straight section 315 is abutted to the outer side wall of the male plug, and the limit groove 311 is clamped on the positioning column 14 again; treat that the boss passes through locking piece 2 back, the male plug inserts and targets in place, elasticity resets board 4 and rebounds under the elastic force effect, drives locking piece 2 and removes to 12 directions of mounting hole, and when the draw-in groove removed the below of reference column 14, locking piece 2 corresponds the up end of position and the lower terminal surface of reference column 14 no longer the butt spacing, and locking piece 2 pressurized position upwards lifts rapidly to make the draw-in groove fix a position with 14 joint of reference column once more.

It should be noted that when the engaging groove is engaged with the positioning pillar 14, the position of the extending section 23 is in a horizontal position, and the cross-sectional position of the elastic reset plate 4 is not shown (as shown in a diagram in fig. 12). When the male plug is pressed on the guiding inclined plane 211, the extension 23 of the locking block 2 is forced to be inclined downwards to abut against the yielding inclined plane 15, so that the same section position of the elastic reset plate 4 is displayed (as shown in b and c of fig. 12)

During disassembly, as shown in fig. 13 (in fig. 13, the upper row is a disassembly state diagram of the positioning block 3, the middle row is a disassembly state diagram of the locking block 2, and the lower row is a disassembly state diagram of the elastic reset plate 4, in the diagram, each vertical row is a moving state in the same time), the guide bosses 232 on both sides are pressed down at the same time, the extension section 23 rotates counterclockwise, so that the clamping groove is separated from the positioning column 14, the locking block 2 and the positioning block 3 are pushed into the cavity, the elastic reset plate 4 is pressed, the through hole 21 is opposite to the boss position of the male plug, the outer side of the male plug is separated from the arc section 316, and along the slope of the inclined straight section 315, the reset cantilever 31 is abutted and driven to expand rapidly, so that the abdicating groove 313 is separated from the positioning column 14, and the male plug can be rapidly extracted from the insertion hole; finally, the guide boss 232 is loosened, the locking block 2 moves towards the position of the mounting hole 12 under the elastic action of the elastic reset plate 4, in the process, the guide block 22 abuts against the inner wall of the abdicating groove 313 to drive the positioning block 3 to move together, and the clamping groove and the limiting groove 311 are clamped on the positioning column 14 again.

It should be noted that, in the diagrams of fig. 13 d and e, since the guiding bosses 232 on both sides are pressed, the position of the extending section 23 of the locking block 2 is forced to abut obliquely downward against the yielding inclined surface 15, so that the position of the cross section of the elastic reset plate 4 is shown, and when the position of the extending section 23 is moved back to the horizontal position, the position of the same cross section is not shown (as shown in the diagram f in fig. 13).

In the above-mentioned operation process, if the boss of male plug does not install in place, can directly cause location cantilever 31 to be the state of opening always, male plug inserts the back can not fix spacing, perhaps the condition that locking piece 2 can not push adapter sleeve 1 appears, or even can promote, nevertheless can not roll back and form the jamming, influence assembly efficiency, only install in place, the cantilever 31 that resets can only retract, locking piece 2 can push adapter sleeve 1, this all is convenient for us to examine the assembly condition of male plug, moreover, the steam generator is simple in structure and compact, and the simple operation is convenient.

The utility model discloses do not describe the part unanimously with prior art, do not describe herein any more.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.

Claims

1. The utility model provides an automatic two locking connecting device with check-up function, is including the male plug and adapter sleeve (1) that are equipped with the boss, its characterized in that: a cavity is arranged in the connecting sleeve (1), a locking block (2) and a positioning block (3) are stacked in the cavity, an inserting hole (11) which penetrates through the connecting sleeve (1) up and down is formed in the connecting sleeve (1), a mounting hole (12) is formed in one side of the connecting sleeve (1), two abdicating holes (13) are formed in the other side of the connecting sleeve (1), a fixing block (121) is arranged on the mounting hole (12), and a guide groove (122) is formed in the fixing block (121); a positioning column (14) is arranged on the inner wall of the cavity at a position corresponding to one side of the orifice of the abdicating hole (13), a section of first transition inclined plane (131) is arranged at a position corresponding to the other side of the orifice of the abdicating hole (13), the bottom of the cavity, which is adjacent to the bottom of the mounting hole (12), is a horizontal plane, and a section of abdicating inclined plane (15) is arranged at the bottom of the adjacent abdicating hole (13); two reset cantilevers (31) are symmetrically arranged on the positioning block (3), an open slot is formed between the two reset cantilevers (31), one side of each reset cantilever (31) is provided with a limit slot (311), the other side is provided with a guide convex block (312), a stop block (32) is arranged at the position of the outer side surface of the reset cantilever (31) corresponding to the guide convex block (312), an abdicating groove (313) is formed between the two guide convex blocks (312) and the positioning block (3), the abdicating groove (313) is communicated with the open groove, between the limiting groove (311) and the guide projection (312) at the corresponding end, a section of second transition inclined plane (314) is arranged at the position corresponding to the upper end surface of the reset cantilever (31), a section of inclined straight section (315) is arranged at the position of the inner side wall of the open slot corresponding to the second transition inclined plane (314);

be equipped with through-hole (21) on locking piece (2), one side in through-hole (21) drill way is equipped with one section direction inclined plane (211), and one side of this locking piece (2) is equipped with inserts guide block (22) of establishing in groove (313) of stepping down, and the opposite side symmetry is equipped with two extension sections (23) that the level outwards stretched out, every one side that extension section (23) stretched out the end all is equipped with fixture block (231), form a draw-in groove structure between the terminal surface that fixture block (231), extension section (23) and locking piece (2) correspond the end, and the lower extreme of this locking piece (2) is equipped with the resetting means of adapter sleeve (1) outside butt.

2. An automatic double-locking connection device with verification function according to claim 1, characterized in that: the second transition inclined planes (314) are arc-shaped, the two sections of the second transition inclined planes (314) form a circle, the diameter of the circle is matched with that of a boss on the male plug, and when the boss is abutted and moved on the second transition inclined planes (314) from top to bottom, the two reset cantilevers (31) are also outwards propped open.

3. An automatic double-locking connection device with verification function according to claim 1, characterized in that: the clamping block (231) is provided with a round angle, and the other side of the extending end of the extending section (23) is provided with a guide boss (232).

4. An automatic double-locking connection device with verification function according to claim 1, characterized in that: resetting means is including setting up connecting block (24) at locking piece (2) lower extreme be equipped with one section convex elasticity on the inside wall of connecting block (24) and reset board (4), elasticity resets and forms an upper and lower open-ended through-hole between board (4) and connecting block (24), and this elasticity resets the lateral wall on board (4) circular arc summit and the corresponding position butt in adapter sleeve (1) outside.

5. An automatic double-locking connection device with verification function according to claim 1, characterized in that: an arc section (316) is arranged on one side of the inclined straight section (315) corresponding to the abdicating groove (313).

6. An automatic double-locking connection device with verification function according to claim 1, characterized in that: and anti-skidding grooves are formed in the outer side walls of the locking block (2) and the positioning block (3).

7. An automatic double-locking connection device with verification function according to claim 4, characterized in that: the elastic reset plate (4) is made of nylon 66 material.

8. An automatic double-locking connection device with verification function according to claim 3, characterized in that: the extension section (23), the fixture block (231) and the guide boss (232) are integrally formed by injection molding of a nylon 66 material; the positioning block (3), the reset cantilever (31), the guide convex block (312) and the stop block (32) are also made of nylon 66 materials through integral injection molding.