CN111795246A - Double-locking connecting device with checking function - Google Patents
Double-locking connecting device with checking function Download PDFInfo
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- CN111795246A CN111795246A CN202010678784.9A CN202010678784A CN111795246A CN 111795246 A CN111795246 A CN 111795246A CN 202010678784 A CN202010678784 A CN 202010678784A CN 111795246 A CN111795246 A CN 111795246A
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- block
- locking
- cantilever
- cavity
- boss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a 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 an inserting hole (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, and a bumping post (14) is arranged between each mounting hole (12) and the abdicating hole (13) at the corresponding end; a locking block (2) and a positioning block (3) which extend into the cavity from the mounting hole (12) and are overlapped up and down are arranged in the cavity. According to the invention, the positioning block and the locking block are arranged in the connecting sleeve to lock the male plug, the in-place assembling condition of the male plug can be rapidly checked, the structure is simple and compact, and the operation is convenient.
Description
Technical Field
The invention relates to the technical field of automobile part manufacturing, in particular to a double-locking connecting device with a checking 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 still defects of unstable locking, in which the male joint has large axial movement displacement after the locking mechanism is easily dropped or fails from the connecting device in the unlocking process, and whether the male joint is installed in place cannot be verified.
Disclosure of Invention
The invention aims to provide a double-locking connecting device with a checking function, which is convenient to disassemble and assemble and is convenient to check a locking state.
The technical scheme of the invention is as follows:
a 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, one side of the connecting sleeve is provided with an inserting hole communicated with the cavity, the other side of the connecting sleeve is provided with a mounting hole communicated with the cavity, the connecting sleeve is also symmetrically provided with two abdicating holes communicated with the cavity, and a blocking column is arranged between each mounting hole and the abdicating hole at the corresponding end; a locking block and a positioning block which extend into the cavity from the mounting hole and are overlapped up and down are arranged in the cavity, the inner side wall of the positioning block is an arc section, two first lugs are symmetrically arranged on the upper end surface of the positioning block along the circumferential direction, the positioning block is provided with the first lugs, a first transition inclined plane section is arranged on one side of the first lug, a second lug is also arranged on the positioning block, an extension section is arranged on the positioning block, the extension section is provided with a resetting cantilever extending outwards, a guide groove is formed among the resetting cantilever, the positioning block and the extension section, the outer side wall of the reset cantilever comprises a flat straight section, a first inclined straight section and a second inclined straight section, a positioning arc section is arranged between the first inclined straight section and the second inclined straight section, the inner side wall of the reset cantilever is provided with a first abdicating arc section, the extending end of the reset cantilever is provided with a first limiting block, and the cavity bottom of the cavity is provided with a limiting groove at a position corresponding to the first limiting block;
the locking device is characterized in that a first boss is arranged on the locking block, a second boss is arranged on the first boss, a locking cantilever extending outwards is arranged on the locking block, a backstop block is arranged on the outer side of the locking cantilever, a second abdicating arc section and a third abdicating arc section are arranged on the inner side of the locking cantilever, a first guide block is arranged between the second abdicating arc section and the third abdicating arc section, a second transition inclined plane section is arranged at a position, corresponding to the first guide block, on the locking cantilever, a second limiting block is arranged at the extending end of the locking cantilever, the second limiting block comprises a first locking block, a limiting column is arranged at a position, corresponding to the first locking block, at the upper end of the inner wall of the cavity of the connecting sleeve, a limiting column is arranged at a position, corresponding to the first locking block, end faces of the limiting column and the corresponding end of the first locking block are abutted; and a second guide block is arranged on the locking block corresponding to the lower end of the locking cantilever.
By adopting the structure, the positioning block is firstly placed into the cavity of the connecting sleeve, the first inclined straight section is abutted against the inner side wall of the retaining column, the two reset cantilevers are extruded to be close to each other and are continuously pushed in, the first inclined straight section enters the cavity through the retaining column, the first limiting block moves into the limiting groove, the lower end surface of the positioning block is attached to the cavity bottom of the cavity, at the moment, the reset cantilevers are not extruded to restore the original state, the positioning arc section and the inner side wall of the retaining column generate interference in the horizontal moving direction of the positioning block, and the inserted positioning block cannot fall off from the connecting sleeve; then the locking block is placed in the cavity of the connecting sleeve, the locking block is arranged above the positioning block, similarly, the locking cantilevers are extruded to be close to each other, and are continuously pushed in, and the stopping block enters the cavity through the stop post and is abutted against the corresponding position on the inner side of the stop post to form moving interference with the stop post in the horizontal direction, the first guide block extends into the guide groove, the second guide block moves into the limiting groove, and the first limiting block is abutted against and positioned with the corresponding position on the inner side wall of the locking block; then, inserting the male plug from top to bottom, wherein the lower end face of a boss on the male plug is firstly abutted to a second transition inclined plane section, the boss continuously moves downwards along the inclined plane, meanwhile, two locking cantilevers are stressed to be outwards opened, then, the boss is abutted to a first transition inclined plane section, a positioning block moves towards the cavity, at the moment, the inner side wall of a first guide block is abutted to the outer side of the boss, a reset cantilever is also stressed to be outwards opened, a third abdicating arc section is abutted to the inner side wall of a stop post, and the first locking block is separated from the position of a limit post; when the boss leaves the first transition inclined plane section, the two reset cantilevers in an open state retract, in the process, the second inclined straight section is always abutted against the stop column, the positioning block moves towards the direction outside the cavity, the second lug and the second boss are abutted against the boss on the male plug, the lower end surfaces of the positioning block and the first boss and the upper end surface of the boss of the male plug form moving interference, and the male plug is ensured not to fall out of the connecting sleeve in the vertical direction; finally, the hand push locking piece removes to the adapter sleeve, and during first guide block stretched into the guide way, this second guide block stretched into the spacing groove, first locking piece and spacing post correspond the position butt, and the corresponding position butt location of first stopper and locking piece inside wall realizes fixed to the secondary of positive plug installation.
When the male plug is disassembled, the locking cantilevers at two ends are pulled open, the first locking block is separated from the limiting column, the locking block is pushed outwards, the first bump is moved away from the upper part of the boss of the male plug until the backstop block is abutted against the retaining column, and then the first limiting block is pushed inwards to move the positioning block away from the upper part of the boss of the male plug, so that the male plug can be easily taken out; in above-mentioned operation process, if the boss of male plug is not installed to the position, can directly cause the cantilever that resets to be the state of opening always, male plug inserts the back and can not fix spacing, perhaps the condition that the lock block can not push the adapter sleeve appears, influences assembly efficiency, only installs to target in place, and the cantilever that resets can contract, and the lock block just can push the adapter sleeve, and this all is convenient for we to examine 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 inner side wall of the positioning block is an arc section, two first lugs are symmetrically arranged on the upper end surface of the positioning block along the circumferential direction, the inner side wall of each first lug boss is also an arc section, the two arc sections surround to form a through hole, and the inner diameter of the through hole is matched with the outer diameter of the male plug; the inside wall of second lug is the location circular arc section the inside wall of second boss also is the location circular arc section, two the location circular arc section surrounds and forms a positioning hole structure, and this positioning hole's internal diameter and the boss external diameter looks adaptation of male plug.
In order to avoid assembly interference and abnormal sound, preferably, the positioning block is symmetrically provided with two extension sections, each extension section is provided with a reset cantilever extending outwards, and a guide groove is formed between the positioning block and the reset cantilever and the extension section at the corresponding end; the distance between the two reset cantilevers is matched with the width of the second boss.
In order to facilitate manual operation, preferably, at least one arc groove is arranged on the outer side wall of the first inclined straight section side by side to form a zigzag arrangement structure.
In order to facilitate disassembly and assembly, preferably, two outwards extending locking cantilevers are symmetrically arranged on the locking block, a backstop block is arranged on the outer side of each locking cantilever, the outer side wall of the backstop block is of an inclined surface structure, a second locking block obliquely extends forwards on the second limiting block, the included angle between the first locking block and the second locking block is 135-150 degrees, a limiting column is arranged on the upper wall of the cavity of the connecting sleeve corresponding to the first locking block, and a positioning boss is arranged between the two limiting columns; when the locking block extends into the connecting sleeve, the upper end surfaces of the locking block and the locking cantilever are both attached to the upper end wall in the cavity of the connecting sleeve, the lower end surface is both attached to the upper end surface of the reset cantilever at the corresponding end, the inclined plane structure of the retaining block is firstly abutted to the inner side wall of the stop post, the two locking cantilevers are extruded to be close to each other and continuously pushed in, and the retaining block passes through the stop post; when continuing to push the installation and target in place again, the location boss is held the butt with the corresponding end of male plug as the location fulcrum, and the lock piece of being convenient for pushes the adapter sleeve fast, and the terminal surface butt of the inside wall that this first lock piece stretched into the end and spacing post corresponding end, the corresponding end of this second lock piece emits the hole drill way of stepping down of corresponding end.
In order to make the operation smooth and reduce the use interference, it is preferable that a third transition slope is provided on the second guide block.
In order to facilitate the disassembly and the use, the outer side wall of the limiting column is preferably provided with an arc surface.
In order to ensure the elastic deformation of the parts in use, preferably, the locking block, the first guide block, the second guide block, the first locking block, the second locking block and the locking cantilever are all made of nylon 66 materials through integral injection molding; the positioning block, the first lug, the second lug, the extension section and the reset cantilever are also made of nylon 66 materials through integral injection molding.
Has the advantages that: according to the invention, the positioning block and the locking block are arranged in the connecting sleeve to lock the male plug, the in-place assembling condition of the male plug can be rapidly checked, the structure is simple and compact, and the operation is convenient.
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 schematic structural diagram of the positioning block.
Fig. 4 is a bottom view of fig. 3.
Fig. 5 is a schematic structural diagram of the locking block.
Fig. 6 is a left side view of fig. 5.
Fig. 7 is a bottom view of fig. 5.
Fig. 8 is a schematic view of the installation structure of the male plug and the present invention.
Fig. 9 is a sectional view of the mounting structure of the present invention.
Fig. 10 is a schematic view of an installation process of the locking block, the positioning block and the connecting sleeve.
Fig. 11 is a schematic view of the detaching process of the locking block, the positioning block and the connecting sleeve.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10 and fig. 11, the male plug with a boss and the connecting sleeve 1 are provided with a cavity 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 1 is provided with a mounting hole 12 communicated with the cavity, the connecting sleeve 1 is further symmetrically provided with two abdicating holes 13 communicated with the cavity, and a bumping post 14 is arranged between each mounting hole 12 and the abdicating hole 13 at the corresponding end; a locking block 2 and a positioning block 3 which extend into the cavity from the mounting hole 12 and are stacked up and down are arranged in the cavity, the inner side wall of the positioning block 3 is an arc section, two first lugs 31 are symmetrically arranged on the upper end surface of the positioning block 3 along the circumferential direction, a first transition inclined plane section 311 is arranged on one side of each first lug 31, a second lug 41 is arranged at the lower end of the positioning block 3, the inner side wall of each second lug 41 is a positioning arc section, two extension sections 312 are symmetrically arranged on the positioning block 3, each extension section 312 is provided with a reset cantilever 32 which extends outwards, and a guide groove 313 is formed between each positioning block 3 and the reset cantilever 32 and the extension section 312 at the corresponding end; the distance between the two reset cantilevers 32 is adapted to the width of the second boss 22.
The outer side wall of the reset cantilever 32 comprises a flat straight section 321, a first inclined straight section 322 and a second inclined straight section 323, at least one arc groove is arranged on the outer side wall of the first inclined straight section 322 side by side to form a zigzag arrangement structure, a positioning arc section 324 is arranged between the first inclined straight section 322 and the second inclined straight section 323, a first abdicating arc section 331 is arranged on the inner side wall of the reset cantilever 32, a first limit block 332 is arranged at the extending end of the reset cantilever 31, and a limit groove 121 is arranged at the cavity bottom of the cavity corresponding to the first limit block 332;
the locking block 2 is provided with a first boss 21, the inner side wall of the first boss 21 is also an arc section, and forms a through hole by enclosing with the arc section on the first bump 31, and the inner diameter of the through hole is matched with the outer diameter of the male plug; the first boss 21 is provided with a second boss 22, the inner side wall of the second boss 22 is also provided with a positioning arc section, the positioning arc section surrounds to form a positioning through hole structure, the inner diameter of the positioning through hole is matched with the outer diameter of the boss of the male plug, and the width of the second boss 22 is matched with the space between the two reset cantilevers 32.
Two locking cantilevers 23 extending outwards are symmetrically arranged on the locking block 2, a backstop block 231 is arranged on the outer side of each locking cantilever 23, the outer side wall of the backstop block 231 is of an inclined surface structure, the second locking block 242 extends forwards in an inclined manner, and the included angle between the first locking block 241 and the second locking block 242 ranges from 135 degrees to 150 degrees, preferably ranges from 148 degrees; a second abdicating arc section 232 and a third abdicating arc section 233 are arranged on the inner side of the locking cantilever 23, a first guide block 234 is arranged between the second abdicating arc section 232 and the third abdicating arc section 233, a second transition inclined plane section 235 is arranged on the locking cantilever 23 at a position corresponding to the first guide block 234, a second limit block 24 is arranged at an extending end of the locking cantilever 23, the second limit block 24 comprises a first lock block 241 and a second lock block 242, a limit column 15 is arranged at a position corresponding to the first lock block 241 at the upper end of the inner wall of the cavity of the connecting sleeve 1, end faces of the limit column 15 and the corresponding end of the first lock block 241 are abutted and limited, an arc surface is arranged on the outer side wall of the limit column 15, and a positioning boss 16 is arranged between the two limit columns 15; a second guide block 25 is arranged on the locking block 2 corresponding to the lower end of the locking cantilever 23, and a third transition inclined surface 251 is arranged on the second guide block 25.
When the locking block 2 extends into the connecting sleeve 1, the upper end surfaces of the locking block 2 and the locking cantilever 23 are both attached to the upper end wall in the cavity of the connecting sleeve 1, the lower end surface is both attached to the upper end surface of the corresponding end reset cantilever 32, the inclined surface structure of the retaining block 231 is firstly abutted to the inner side wall of the retaining column 14, the two locking cantilevers 23 are extruded to be close to each other and continuously pushed in, and the retaining block 231 passes through the retaining column 14, at the moment, the outer side wall of the extending end of the first locking block 241 is abutted to the end surface of the corresponding end of the limiting column 15, the second locking block 242 is positioned at the position of the abdicating hole 13 of the corresponding end, and the end surface corresponding to the high end of the inclined surface of the retaining block 231 is abutted to the corresponding position; when the first guide block 234 is pushed to the installation position, the first guide block 234 extends into the guide groove 313, the second guide block 25 extends into the limit groove 121, the corresponding end of the second locking block 242 protrudes out of the hole opening of the abdicating hole 13 of the corresponding end and is abutted against the corresponding position of the hole opening of the abdicating hole 13, and the inner side wall of the extending end of the first locking block 241 is abutted against the end surface of the corresponding end of the limit post 15 to form a reverse buckling state; the positioning boss 16 is used as a positioning fulcrum to abut against the corresponding end of the male plug, so that the locking block 2 can be conveniently and rapidly pushed into the connecting sleeve 1.
The locking block 2, the first guide block 234, the second guide block 25, the first locking block 241, the second locking block 242 and the locking cantilever 23 are all made of nylon 66 materials through integral injection molding; the positioning block 3, the first projection 31, the second projection 41, the extension section 31 and the reset cantilever 32 are also made of nylon 66 material through integral injection molding.
The using method of the invention is as follows:
as shown in fig. 1 to 11, the positioning block 3 is first placed into the cavity of the connecting sleeve 1 from the mounting hole 12, the first oblique-straight section 322 abuts against the inner side wall of the catch column 14, the two reset cantilevers 32 are pressed to approach each other, and are continuously pushed in, so that the first oblique-straight section 322 enters the cavity through the catch column 14, the first limiting block 332 moves into the limiting groove 121, and the lower end surface of the positioning block 3 is attached to the bottom of the cavity, at this time, the reset cantilevers 32 are not pressed to restore to the original shape, and the positioning arc section 324 interferes with the inner side wall of the catch column 14 in the horizontal movement direction of the positioning block 3, that is, the inserted positioning block 3 does not fall off from the connecting sleeve.
The locking block 2 is placed into the cavity of the connecting sleeve from the mounting hole 12, the locking block 2 is arranged above the positioning block 3, similarly, the locking cantilever 23 is extruded by the catch column 14 to be close to each other in the moving process, and is continuously pushed in, and the stopping block 231 enters the cavity through the catch column 14 and is abutted to the corresponding position on the inner side of the catch column 14, and forms moving interference with the catch column 14 in the horizontal direction, the first guide block 234 extends into the guide groove 313, the second guide block 25 moves into the limiting groove 121, and the first limiting block 332 is abutted to the corresponding position on the inner side wall of the locking block 2.
Then, as shown in fig. 10 (in fig. 10, the upper row is an installation state diagram of the locking block 2, the middle row is an installation state diagram of the positioning block 3, and the lower row is an installation state diagram of the second guide block 25, in this figure, each vertical row is a moving state in the same time), a male plug (not labeled) is inserted into the jack 11 from top to bottom, the lower end surface of a boss (not labeled) on the male plug is firstly abutted with the second transition inclined plane section 235, the boss continues to move down along the inclined plane, at the same time, the two locking cantilevers 23 are forced to open outwards, then the boss is abutted with the first transition inclined plane section 311, the positioning block 3 moves into the cavity, at this time, the inner side wall of the first guide block 234 is abutted with the outer side of the boss, the reset cantilever 32 is forced to open outwards, the third abdicating circular arc section 233 is abutted with the inner side wall of the retaining column 14, and the first locking block 241 is separated from the, the second locking block 242 is abutted with the orifice of the abdicating hole 13 for positioning; when the boss leaves the first transition inclined plane section 311, the two reset cantilevers 32 in the open state retract, in the process, the second inclined straight section 323 is always abutted against the catch column 14, the positioning block 3 moves towards the direction outside the cavity, the second convex block 41 and the second convex block 22 are abutted against the boss on the male plug, the lower end faces of the positioning block 3 and the first convex block 21 and the upper end face of the boss of the male plug form moving interference, and the male plug is ensured not to fall out of the connecting sleeve in the vertical direction; finally, the hand push locking piece removes to the adapter sleeve, and during first guide block 234 stretched into guide way 313, this second guide block 25 stretched into spacing groove 121, first locking piece 241 and spacing post 15 correspond terminal surface looks butt, and the first stopper 332 and the corresponding position butt location of locking piece 2 inside wall, realize the secondary fixed to the male plug installation.
During disassembly, as shown in fig. 11 (in fig. 11, the upper row is a disassembly state diagram of the locking block 2, the middle row is a disassembly state diagram of the positioning block 3, and the lower row is a disassembly state diagram of the second guide block 25, in this figure, each vertical row is a moving state in the same time), the locking cantilevers 23 at the two ends are pulled open, the second locking block 242 extends outwards, the first locking block 241 is separated from the limiting column 15, the locking block 2 is pushed outwards, the first bump 31 is moved away from the boss of the male plug until the backstop block 231 abuts against the retaining column 14, and then the first limit block 332 is pushed inwards to move the positioning block 3 away from the boss of the male plug, so that the male plug can be easily taken out;
in addition, because the hole wall of the abdicating hole 13 is a bevel edge, in order to meet the situation of matching installation between a plane and a bevel surface, prevent the phenomenon of buckling and slipping, and improve the installation stability, the included angle between the first locking block 241 and the second locking block 242 is 135-150 degrees, preferably 148 degrees.
In above-mentioned operation process, if the boss of male plug is not installed to the position, can directly cause the cantilever that resets to be the state of opening always, male plug inserts the back and can not fix spacingly, perhaps appears the condition that locking piece 2 can not push adapter sleeve 1, influences assembly efficiency, only installs to target in place, and the cantilever 32 that resets can retract, and locking piece 2 can push adapter sleeve 1, and this all is convenient for we to examine the assembly condition of male plug, and simple structure is compact, the simple operation.
The mounting assembly on the male plug, such as a gasket or the like, is not relevant for use with the present invention and is therefore not described or illustrated.
The undescribed parts of the present invention are consistent with the prior art and will not be described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (8)
1. The utility model provides a have two locking connecting device of check-up function, is including 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), one side of the connecting sleeve (1) is provided with an inserting hole (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, and a blocking column (14) is arranged between each mounting hole (12) and the abdicating hole (13) at the corresponding end; a locking block (2) and a positioning block (3) which extend into the cavity from the mounting hole (12) and are stacked up and down are arranged in the cavity, a first convex block (31) is arranged on the positioning block (3), a first transition inclined plane section (311) is arranged on one side of the first convex block (31), a second convex block (41) is further arranged on the positioning block (3), an extension section (312) is arranged on the positioning block (3), a reset cantilever (32) extending outwards is arranged on the extension section (312), a guide groove (313) is formed among the reset cantilever (32), the positioning block (3) and the extension section (312), the outer side wall of the reset cantilever (32) comprises a straight section (321), a first inclined straight section (322) and a second inclined straight section (323), a positioning arc section (324) is arranged between the first inclined straight section (322) and the second inclined straight section (323), and a first abdicating arc section (331) is arranged on the inner side wall of the reset cantilever (32), a first limit block (332) is arranged at the extending end of the reset cantilever (32), and a limit groove (121) is arranged at the cavity bottom of the cavity corresponding to the first limit block (332);
the connecting sleeve is characterized in that a first boss (21) is arranged on the locking block (2), a second boss (22) is arranged on the first boss (21), a locking cantilever (23) extending outwards is arranged on the locking block (2), a stopping block (231) is arranged on the outer side of the locking cantilever (23), a second abdicating arc section (232) and a third abdicating arc section (233) are arranged on the inner side of the locking cantilever, a first guide block (234) is arranged between the second abdicating arc section (232) and the third abdicating arc section (233), a second transition inclined section (235) is arranged at the position, corresponding to the first guide block (234), on the locking cantilever (23), a second limit block (24) is arranged at the extending end of the locking cantilever (23), the second limit block (24) comprises a first locking block (241), a limit column (15) is arranged at the position, corresponding to the first locking block (241), at the upper end of the inner wall of the cavity of the connecting sleeve (1), the end faces of the corresponding ends of the limiting column (15) and the first locking block (241) are mutually abutted and limited, and a positioning boss (16) is further arranged on the upper wall of the cavity of the connecting sleeve (1); a second guide block (25) is arranged on the locking block (2) corresponding to the lower end of the locking cantilever (23).
2. The double-locking connection device with verification function according to claim 1, wherein: the inner side wall of the positioning block (3) is an arc section, two first lugs (31) are symmetrically arranged on the upper end face of the positioning block (3) along the circumferential direction, the inner side wall of the first boss (21) is also an arc section, the two arc sections surround to form a through hole, and the inner diameter of the through hole is matched with the outer diameter of the male plug; the lower extreme of locating piece (3) is equipped with second lug (41), the inside wall of second lug (41) is the location circular arc section the inside wall of second boss (22) also is the location circular arc section, two the location circular arc section surrounds and forms a positioning hole structure, the internal diameter of this positioning hole and the boss external diameter looks adaptation of male plug.
3. The double-locking connection device with verification function according to claim 1, wherein: two extension sections (312) are symmetrically arranged on the positioning block (3), each extension section (312) is provided with a resetting cantilever (32) which extends outwards, and a guide groove (313) is formed between the positioning block (3) and the resetting cantilever (32) and the extension section (312) at the corresponding end; the distance between the extending ends of the two reset cantilever arms (32) is matched with the width of the second boss (22).
4. The double-locking connection device with verification function according to claim 1, wherein: at least one arc groove is arranged on the outer side wall of the first inclined straight section (322) side by side to form a zigzag arrangement structure.
5. The double-locking connection device with verification function according to claim 1, wherein: two locking cantilevers (23) extending outwards are symmetrically arranged on the locking block (2), the outer side of each locking cantilever (23) is provided with a stopping block (231), the outer side wall of each stopping block (231) is of an inclined surface structure, a second locking block (242) extends forwards in an inclined manner on the second limiting block (24), an included angle between the first locking block (241) and the second locking block (242) is 135-150 degrees, a limiting column (15) is arranged on the upper wall of the cavity of the connecting sleeve (1) at a position corresponding to the first locking block (241), and a positioning boss (16) is arranged between the two limiting columns (15); when the locking block (2) stretches into the connecting sleeve (1), the upper end surfaces of the locking block (2) and the locking cantilevers (23) are attached to the upper end wall in the cavity of the connecting sleeve (1), the lower end surfaces of the locking block (2) and the locking cantilevers (23) are attached to the upper end surface of the corresponding end reset cantilever (32), the inclined surface structure of the stopping block (231) is firstly abutted to the inner side wall of the retaining column (14), the two locking cantilevers (23) are extruded to be close to each other and continuously pushed in, and the stopping block (231) passes through the retaining column (14), at the moment, the outer side wall of the extending end of the first locking block (241) is abutted to the end surface of the corresponding end of the limiting column (15), the second locking block (242) is located at the position of the abdicating hole (13) of the corresponding end, and the end surface corresponding to the inclined surface high end of the stopping block (231) is abutted to; when continuing to push the installation and target in place again, the location boss (16) are as the location fulcrum and the corresponding end butt of male plug, and the adapter sleeve (1) is pushed fast to the locking piece (2) of being convenient for, and the terminal surface butt of the inside wall that this first locking piece (241) stretched into the end and spacing post (15) corresponding end, the hole of stepping down (13) drill way of corresponding end is emerged to the corresponding end of this second locking piece (242).
6. The double-locking connection device with verification function according to claim 1, wherein: a third transition ramp (251) is provided on the second guide block (25).
7. The double-locking connection device with verification function according to claim 1, wherein: the outer side wall of the limiting column (15) is provided with an arc surface.
8. The double-locking connection device with verification function according to claim 1, wherein: the locking block (2), the first guide block (234), the second guide block (25), the first locking block (241), the second locking block (242) and the locking cantilever (23) are all made of nylon 66 materials through integral injection molding; the positioning block (3), the first bump (31), the second bump (41), the extension section (31) and the reset cantilever (32) are also made of nylon 66 materials through integral injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010678784.9A CN111795246A (en) | 2020-07-15 | 2020-07-15 | Double-locking connecting device with checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010678784.9A CN111795246A (en) | 2020-07-15 | 2020-07-15 | Double-locking connecting device with checking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111795246A true CN111795246A (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010678784.9A Pending CN111795246A (en) | 2020-07-15 | 2020-07-15 | Double-locking connecting device with checking function |
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| Country | Link |
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| CN (1) | CN111795246A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404958A (en) * | 2021-07-02 | 2021-09-17 | 重庆溯联塑胶股份有限公司 | Automatic connected safety pipe joint |
| CN114135729A (en) * | 2021-11-05 | 2022-03-04 | 重庆溯联塑胶股份有限公司 | New energy automobile cooling pipeline is with two locking connectors |
| CN114198579A (en) * | 2021-12-17 | 2022-03-18 | 临海市永恒汽配科技有限公司 | Detachable plug-in connector capable of being locked in place and falling |
| CN114923053A (en) * | 2022-05-24 | 2022-08-19 | 重庆溯联汽车零部件有限公司 | Connecting device with pipeline on-off detection function |
-
2020
- 2020-07-15 CN CN202010678784.9A patent/CN111795246A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404958A (en) * | 2021-07-02 | 2021-09-17 | 重庆溯联塑胶股份有限公司 | Automatic connected safety pipe joint |
| CN114135729A (en) * | 2021-11-05 | 2022-03-04 | 重庆溯联塑胶股份有限公司 | New energy automobile cooling pipeline is with two locking connectors |
| CN114135729B (en) * | 2021-11-05 | 2023-09-29 | 重庆溯联塑胶股份有限公司 | Double-locking connector for new energy automobile cooling pipeline |
| CN114198579A (en) * | 2021-12-17 | 2022-03-18 | 临海市永恒汽配科技有限公司 | Detachable plug-in connector capable of being locked in place and falling |
| CN114923053A (en) * | 2022-05-24 | 2022-08-19 | 重庆溯联汽车零部件有限公司 | Connecting device with pipeline on-off detection function |
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