CN211925095U - Non-detachable quick connector assembly with cover - Google Patents

Abstract

The utility model discloses a cover-type non-detachable quick connector assembly, which comprises a connector main body, wherein a safety ring is sleeved in a female end, and an O-shaped sealing ring is arranged between the safety ring and the connector main body; the inner ring of the female end port of the joint main body is provided with a limiting lug, and the outer ring of the safety ring is provided with an outer buckle corresponding to the limiting lug; the safety ring is also provided with an elastic inner buckle protruding towards the inner side; and the cover cap is correspondingly connected with the female end of the joint main body and is used for covering a nut which is sleeved on the external male end and locks the air inlet pipeline on the machine body. The utility model is only composed of the safety ring, the joint main body, the O-shaped sealing ring and the cover cap, thereby effectively saving the use cost of customers and improving the loading efficiency; the nut sleeved on the external male end is covered by the cover cap, so that dust accumulation or corrosion is effectively avoided, and the safety ring and the mold of the joint main body can be used universally.

Description

Non-detachable quick connector assembly with cover

Technical Field

The utility model relates to an automobile parts technical field, in particular to take cover formula undetachable quick connector combination.

Background

During operation of the engine, the high-pressure combustible mixture and burnt gas in the combustion chamber leak into the crankcase through a gap between the piston group and the cylinder to a greater or lesser extent, causing blow-by. The blow-by gas is composed of unburned fuel gas, water vapor, exhaust gas and the like, which can dilute the engine oil, reduce the service performance of the engine oil and accelerate the oxidation and deterioration of the engine oil. The water and the air are condensed in the engine oil to form oil sludge and block an oil way; acid gases in the exhaust gas mixed into the lubrication system can cause corrosion and accelerated wear of engine parts; blow-by also causes the crankcase pressure to be too high and the crankcase seal to be broken, allowing oil to leak and run off.

Crankcase ventilation must be implemented to prevent excessive crankcase pressure, extend engine oil life, reduce wear and corrosion of parts, and prevent engine oil leakage. In addition, crankcase ventilation system designs must also be implemented during automotive engine design to meet increasingly stringent emissions requirements and to improve economy. The new national emission standard provides that the blow-by gas of the crankcase cannot be discharged into the atmosphere so as to avoid air pollution, so that the gas separated by the oil-gas separation system must be led into an air inlet system of the engine and participate in combustion, and a crankcase ventilation pipe for communicating the crankcase and the air inlet system of the cylinder is required.

Chinese patent 201711020241.2 relates to an electrically conductive crankcase ventilation duct comprising: the quick-mounting connector is connected with the sealing pipe through an inserted male end and connected with an air inlet pipeline of the air cylinder through an inserted female end; a lead is arranged on the outer side of the sealing tube; the quick connectors at the two ends are both provided with a microswitch and a circuit board, the microswitch is positioned on the inner wall of the jack, the circuit board is connected with the microswitch and is arranged in the wiring groove, and the two ends of the two wires are both connected to the circuit board at the corresponding end to form a conduction loop; the circuit board at one end is also connected with an external electric plug for connecting with a main control ECU of the automobile so as to output on-off signals.

However, the quick-assembly quick-release joint which meets the national six standards in the form of signal feedback has the following problems in practical use:

1) the structure is complex, thus leading to high manufacturing and use costs, and the cost control requirements for specific customers are difficult to meet;

2) the structure is complex, so that when the air cylinder is used, a worker who needs special skill training assembles the joint and the ventilation pipe, and relatively long working hours are needed in the subsequent assembly stage of communicating the crankcase and the air cylinder intake system through the ventilation pipe, so that the loading efficiency is not improved;

3) in addition, when being connected through female end and air inlet pipeline, need through cup jointing the nut on air inlet pipeline with air inlet pipeline locking on the engine organism, and expose outside during this moment the nut, not only influence whole pleasing to the eye, exposed nut receives outside gaseous corruption easily moreover or dust pile up and lead to follow-up nut to dismantle the difficulty, consequently needs reasonable in design's scheme to effectively protect the nut.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a cover-type non-detachable quick connector assembly, which comprises a connector main body with a male end and a female end, wherein a safety ring is sleeved in the female end of the connector main body, and an O-shaped sealing ring is arranged between one end of the safety ring positioned in the connector main body and the connector main body;

the inner ring of the female end port of the joint main body is provided with a limiting lug, and the outer ring of the safety ring is provided with an outer buckle which corresponds to and is positioned on the axial inner side of the limiting lug;

the safety ring is also provided with an elastic inner buckle protruding towards the inner side so as to be correspondingly inserted into the female end and a flange arranged radially at the inner and outer male ends for clamping and limiting, and the inner buckle and the outer buckle are axially arranged at the same side;

and the connector also comprises a cover cap corresponding to the female end of the connector main body and used for covering a nut which is sleeved on the external male end and locks the air inlet pipeline on the machine body.

Further, the female end of the joint main body is also provided with an axial outer error-proof flat end, and the safety ring is axially provided with an inner error-proof flat end corresponding to the outer error-proof flat end.

The safety ring comprises an outer buckle, an inner buckle and a safety ring main body, wherein the outer buckle, the inner buckle and the safety ring main body are integrally injection-molded, a window is arranged on the safety ring main body corresponding to the inner buckle, and the upper edge of the inner buckle is integrally connected with the upper edge of the window.

Furthermore, a first breaking opening corresponding to the inner buckle is formed in the side edge of the female end of the joint main body; furthermore, the inner wall of the female end of the joint main body is also respectively provided with two axially corresponding forcible entry grooves on two side walls of the forcible entry port, and the part between the forcible entry grooves forms a forcible entry wall.

Furthermore, a second breaking opening is formed in the inner buckle of the safety ring.

Furthermore, the utility model discloses based on the shroud design, provide the quick connector of one of them shroud structure: the shroud includes integrated into one piece's main part and connecting portion, the internal diameter of main part size with cup joint the external diameter size of external public end upper nut is unanimous, the internal diameter size of connecting portion with the external diameter size who connects the main part is unanimous, just the hookup location of main part and connecting portion is provided with and is located the inboard spacing portion of shroud, the internal diameter size of main part and spacing portion equal more than or equal to the internal diameter size of spacing lug, the shroud passes through connecting portion cup joint the female end outside that connects the main part and pass through spacing portion is spacing.

Furthermore, the utility model discloses based on the shroud design, provide another kind of shroud structure's quick connector: the cover cap is connected with the safety ring in an integrated forming mode, and the inner diameter of the cover cap is consistent with the outer diameter of the nut sleeved on the external male end and is larger than or equal to the inner diameter of the safety ring.

Furthermore, the utility model discloses based on the shroud design, provide the quick connector of shroud structure of another kind: the cover cap is integrally formed and connected with the connector main body, and the inner diameter of the cover cap is larger than or equal to that of the limiting lug and is consistent with the outer diameter of the nut sleeved on the external male end.

Through the technical scheme, the utility model discloses following beneficial effect has:

1) the structure is simple, the whole body only comprises four parts, namely a safety ring, a joint main body, an O-shaped sealing ring and a cover cap, and the use cost of a client is saved to a great extent;

2) after the quick connector is assembled, the quick assembly of the external male end and the quick connector can be realized only by pressing the external male end during loading, no redundant action is needed, and the loading efficiency is improved to a great extent;

3) the safety ring is clamped into the female end of the joint main body and then limited by the limiting convex block, and the external male end is inserted and then limited by the internal buckle, so that the quick-plug joint which is not detachable is formed, the problems of loosening or falling caused by other factors such as human or vibration and the like after loading are avoided, and the special exemption requirement of a specific manufacturer is met;

4) based on the disassembly requirement of the external male end under a specific condition, on the basis of the non-detachable quick connector, the first breaking opening corresponding to the inner buckle is formed in the side edge of the female end of the connector main body, so that the side wall of the female end can be forcedly broken at the first breaking opening by a tool to take out a safety ring and further withdraw the external male end; furthermore, if the safety ring still cannot be smoothly withdrawn after the side wall of the female end is forcibly damaged through the first breaking opening, the internal buckle can be forcibly damaged by a tool through a second breaking opening on the internal buckle of the safety ring exposed due to the breaking of the side wall of the female end, so that the external male end is smoothly withdrawn; or, further, two axially corresponding breaking-in grooves on two side walls of the breaking-in opening are respectively arranged on the inner wall of the female end of the joint main body to form a breaking-in wall between the two breaking-in grooves, so that when the breaking-in is carried out at the position of the breaking-in opening by means of a tool, the breaking-in wall with the limiting lug is smoothly removed due to the existence of the breaking-in grooves and the breaking-in wall, and after the limiting lug is removed, the safety ring is out of limitation and is smoothly taken out, so that the external male end can be smoothly withdrawn;

5) due to the arrangement of the cover cap, after the female end of the quick connector is plugged with the air inlet pipeline of the engine body serving as the external male end, the nut sleeved on the external male end can be covered by the cover cap, so that dust accumulation or corrosion is effectively avoided, and the subsequent disassembly and assembly feasibility is ensured; the cover is of a structure which is arranged independently, the whole structure of the quick-connection plug is not influenced, and the safety ring and the die of the plug main body can be universal, so that the die sinking cost is effectively reduced; or the cover cap and the safety ring body are integrally injection-molded, so that the structure is simpler, the installation procedures can be effectively reduced, and the mold of the joint main body can be universal; or, with shroud and joint main part integral type injection moulding, structural simpler, can effectively reduce the installation procedure, the safety ring mould can be general moreover.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is an exploded view of a quick connector with a separate cover according to example 1;

FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;

FIG. 3 is a schematic top view of the female end of the quick connector in embodiments 1-5;

FIG. 4 is an exploded view of the quick connector with integrated cover and safety ring in accordance with embodiment 2;

FIG. 5 is a schematic sectional view taken along line B-B in FIG. 4;

FIG. 6 is an exploded view of the quick connector of embodiment 3 with an integrated cover and connector body;

fig. 7 is a schematic sectional view along the direction C-C in fig. 1.

The figures in the drawings represent: 10. a connector body; 11. a limiting bump; 12. an outer error-proofing flat end; 13. breaking and detaching the first opening; 14. breaking and dismantling the wall; 15. breaking and dismantling the groove; an O-shaped seal ring; 30. a safety ring; 31. an outer buckle; 32. inner error-proofing flat ends; 33. an inner buckle; 34. breaking and detaching a second opening; 40. a cover; 41. a main body portion; 42. a connecting portion; 43. a limiting part.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1:

referring to fig. 1-3, the present invention relates to a covered non-detachable quick connector assembly, which comprises a connector body 10 having a male end and a female end, wherein a safety ring 30 is sleeved in the female end of the connector body 10, and an O-ring 20 is disposed between one end of the safety ring 30 located inside the connector body 10 and the connector body 10; the inner ring of the female end port of the joint main body 10 is provided with a limit bump 11, and the outer ring of the safety ring 30 is provided with an outer buckle 31 which corresponds to and is positioned on the axial inner side of the limit bump 11; the safety ring 30 is also provided with an elastic inner buckle 33 protruding inwards to be correspondingly inserted into a flange arranged radially at the internal and external male ends of the female end for clamping and limiting, and the inner buckle 33 and the outer buckle 31 are axially arranged at the same side; still have the shroud 40 that corresponds the female end of joint main part 10, shroud 40 includes integrated into one piece's main part 41 and connecting portion 42, the internal diameter size of main part 41 is unanimous with the external diameter size of cup jointing the nut on external public end, the internal diameter size of connecting portion 42 is unanimous with the external diameter size of joint main part 10, and the hookup location of main part 41 and connecting portion 42 is provided with the spacing portion 43 that is located the shroud 40 inboard, the internal diameter size of main part 41 and spacing portion 43 all is more than or equal to the internal diameter size of spacing lug 11, shroud 40 cup joints the female end outside of joint main part 10 through connecting portion 42 and spacing through spacing portion 43.

The female end of the joint body 10 is also provided with an axial outer error-proof flat end 12, and the safety ring 30 is axially provided with an inner error-proof flat end 32 corresponding to the outer error-proof flat end, so that the safety ring 30 and the female end can be successfully aligned and assembled by means of the error-proof flat end during assembly; the outer buckle 31 and the inner buckle 33 of the safety ring 30 are integrally injection molded with the main body of the safety ring 30, a window is arranged on the main body of the safety ring 30 corresponding to the inner buckle 33, and the upper edge of the inner buckle 33 is integrally connected with the upper edge of the window.

The structure of the embodiment 1 is simple, the whole body is composed of only four parts, namely, the safety ring 30, the joint main body 10, the O-shaped sealing ring 20 and the cover cap 40, so that the use cost of a client is saved to a great extent, and due to the arrangement of the cover cap 40, after the female end of the quick connector is plugged with an engine body air inlet pipeline serving as an external male end, a nut sleeved on the external male end can be covered by the cover cap 40, so that the subsequent disassembly and assembly feasibility is ensured by effectively avoiding dust accumulation or corrosion, the cover cap 40 is of a separately arranged structure, the whole structure of the quick connector is not affected, and the safety ring 30 and the mold of the joint main body 10 can be commonly used, so that the mold opening cost is effectively reduced; after the quick connector is assembled, the quick assembly of the external male end and the quick connector can be realized only by pressing the external male end during loading, no redundant action is needed, and the loading efficiency is improved to a great extent; because the safety ring 30 is limited by the limiting convex block 11 after being clamped into the female end of the joint main body 10 and the flange of the external male end after being inserted is limited by the inner buckle 33, the quick-plug joint which cannot be disassembled is formed, so that the problems of looseness or falling off and the like caused by other factors such as human or vibration and the like after loading are avoided, and the special exemption requirement of a specific manufacturer is met.

Example 2:

referring to fig. 3 to 5, the present embodiment 2 is different from embodiment 1 in that the cap 40 is connected to the safety ring 30 by integral injection molding, and the inner diameter of the main body of the cap 40 is equal to the outer diameter of the nut sleeved on the male end and is greater than or equal to the inner diameter of the safety ring 30.

The structure of the embodiment 2 is simple, the whole body only comprises three parts, namely the safety ring 30, the integrated injection-molded safety ring 30, the cover cap 40 and the O-shaped sealing ring 20, so that the use cost of a client is saved to a great extent, and after the female end of the quick connector is plugged with an engine body air inlet pipeline serving as an external male end, a nut sleeved on the external male end can be covered by the cover cap 40, so that dust accumulation or corrosion is effectively avoided, the subsequent disassembly and assembly feasibility is ensured, the cover cap 40 and the safety ring 30 are integrally injection-molded, so that the structure is simpler, the installation procedures are effectively reduced, and the mold of the connector main body 10 can be used universally; after the quick connector is assembled, the quick assembly of the external male end and the quick connector can be realized only by pressing the external male end during loading, no redundant action is needed, and the loading efficiency is improved to a great extent; because the safety ring 30 is limited by the limiting convex block 11 after being clamped into the female end of the joint main body 10 and the flange of the external male end after being inserted is limited by the inner buckle 33, the quick-plug joint which cannot be disassembled is formed, so that the problems of looseness or falling off and the like caused by other factors such as human or vibration and the like after loading are avoided, and the special exemption requirement of a specific manufacturer is met.

Example 3:

referring to fig. 3, 6 and 7, the difference between this embodiment 3 and embodiments 1 and 2 is that the cover 40 is connected to the joint body 10 by integral injection molding, and the inner diameter of the cover 40 is greater than or equal to the inner diameter of the limit protrusion 11 and is the same as the outer diameter of the nut sleeved on the male end.

The structure of the embodiment 3 is simple, the whole body only comprises three parts, namely the safety ring 30, the integrated injection molded connector main body 10, the cover cap 40 and the O-shaped sealing ring 20, the use cost of a client side is saved to a great extent, and after the female end of the quick connector is plugged with an engine body air inlet pipeline serving as an external male end, a nut sleeved on the external male end can be covered by the cover cap 40, so that dust accumulation or corrosion is effectively avoided, the subsequent disassembly and assembly feasibility is ensured, the cover cap 40 and the connector main body 10 are integrally injection molded, the structure is simpler, the installation procedures are effectively reduced, and the safety ring 30 mold can be used universally; after the quick connector is assembled, the quick assembly of the external male end and the quick connector can be realized only by pressing the external male end during loading, no redundant action is needed, and the loading efficiency is improved to a great extent; because the safety ring 30 is limited by the limiting convex block 11 after being clamped into the female end of the joint main body 10 and the flange of the external male end after being inserted is limited by the inner buckle 33, the quick-plug joint which cannot be disassembled is formed, so that the problems of looseness or falling off and the like caused by other factors such as human or vibration and the like after loading are avoided, and the special exemption requirement of a specific manufacturer is met.

Example 4:

based on the embodiment 1, 2 or 3, the first break-in opening 13 corresponding to the inner buckle 33 is arranged on the side edge of the female end of the joint main body 10; furthermore, the inner wall of the female end of the joint body 10 is further provided with two breaking grooves 15 (as shown in fig. 3) axially corresponding to two side walls of the first breaking opening 13, and a portion between the two breaking grooves 15 forms a breaking wall 14.

In this embodiment 4, based on the requirement for detaching the external male end under specific conditions, on the basis of the non-detachable quick connector, the first break-in opening 13 corresponding to the inner buckle 33 is formed at the side edge of the female end of the connector main body 10, so that the side wall of the female end can be forcibly broken open at the place by means of a tool to take out the safety ring 30 and further withdraw the external male end; further, two axially corresponding breaking grooves 15 on two side walls of the first breaking opening 13 are respectively formed in the inner wall of the female end of the connector main body 10 to form a breaking wall 14 between the two breaking grooves 15, so that when a tool is used for breaking at the position of the first breaking opening 13, the breaking wall 14 with the limiting lug 11 is smoothly removed due to the existence of the breaking grooves 15 and the breaking wall 14, and after the limiting lug 11 is removed, the safety ring 30 is out of limit and is smoothly taken out, so that the external male end can be smoothly withdrawn.

Example 5:

based on the above embodiment 4, the inner buckle 33 of the safety ring 30 is further provided with a second breaking opening 34. If the safety ring 30 cannot be smoothly withdrawn after the first breaking opening 13 forcibly breaks the side wall of the female end, the second breaking opening 34 on the inner buckle 33 of the safety ring 30 exposed by breaking the side wall of the female end in this embodiment 3 can be further used to forcibly break the inner buckle 33 by means of a tool, so that the external male end can be smoothly withdrawn.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides a take cover formula quick connector combination of undetachable which characterized in that: the safety joint comprises a joint main body (10) with a male end and a female end, wherein a safety ring (30) is sleeved in the female end of the joint main body (10), and an O-shaped sealing ring (20) is arranged between one end, located in the joint main body (10), of the safety ring (30) and the joint main body (10);

a limiting bump (11) is arranged on the inner ring of the female end port of the joint main body (10), and an outer buckle (31) which corresponds to and is positioned on the axial inner side of the limiting bump (11) is arranged on the outer ring of the safety ring (30);

the safety ring (30) is also provided with an elastic inner buckle (33) protruding inwards to be correspondingly inserted into a flange arranged radially at the inner and outer male ends of the female end for clamping and limiting, and the inner buckle (33) and the outer buckle (31) are axially arranged at the same side;

and the connector also comprises a cover cap (40) corresponding to the female end of the connector main body (10) and used for covering a nut sleeved on the external male end and locking the air inlet pipeline on the machine body.

2. The covered non-detachable quick connector assembly according to claim 1, wherein the female end of the connector body (10) further has an axial outer error-proof flat end (12), and the safety ring (30) is axially provided with an inner error-proof flat end (32) corresponding to the outer error-proof flat end (12).

3. The covered non-detachable quick connector assembly as claimed in claim 1, wherein the outer clip (31) and the inner clip (33) of the safety ring (30) are integrally injection molded with the main body of the safety ring (30), and the main body of the safety ring (30) is provided with a window corresponding to the inner clip (33), and the upper edge of the inner clip (33) is integrally connected with the upper edge of the window.

4. The covered non-detachable quick connector assembly as claimed in claim 1, wherein the female end of the connector body (10) is provided with a first break-in opening (13) corresponding to the inner snap (33).

5. The covered non-detachable quick connector assembly according to claim 4, wherein the inner wall of the female end of the connector body (10) is further provided with two breaking grooves (15) axially corresponding to two side walls of the first breaking opening (13), and a breaking wall (14) is formed between the two breaking grooves (15).

6. The covered non-detachable quick connector assembly as claimed in claim 4 or 5, wherein the inner buckle (33) of the safety ring (30) is provided with a second breaking opening (34).

7. The covered non-detachable quick connector assembly as claimed in claim 1, the cover (40) comprises a main body part (41) and a connecting part (42) which are integrally formed, the inner diameter of the main body part (41) is consistent with the outer diameter of the nut sleeved on the external male end, the inner diameter of the connecting part (42) is consistent with the outer diameter of the joint main body (10), and the connecting position of the main body part (41) and the connecting part (42) is provided with a limiting part (43) positioned at the inner side of the cover cap (40), the inner diameter of the main body part (41) and the inner diameter of the limiting part (43) are both larger than or equal to the inner diameter of the limiting lug (11), the cover cap (40) is sleeved on the outer side of the female end of the joint main body (10) through the connecting part (42) and is limited through the limiting part (43).

8. The covered non-detachable quick connector assembly according to claim 1, wherein the cover (40) is integrally formed with the safety ring (30), and an inner diameter of the cover (40) is equal to an outer diameter of a nut sleeved on the male end and is greater than or equal to an inner diameter of the safety ring (30).

9. The covered non-detachable quick connector assembly according to claim 1, wherein the cover (40) is integrally formed with the connector body (10), and an inner diameter of the cover (40) is greater than or equal to an inner diameter of the limiting protrusion (11) and is consistent with an outer diameter of a nut sleeved on the male end.

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