CN218625954U - Nylon tube quick connector dustproof sheath - Google Patents

Abstract

The utility model discloses a nylon tube quick connector sheath that prevents dust, include: the base is arranged at the end part of the sealing sleeve ring and closes one end of the sealing sleeve ring; the base is provided with an installation through hole matched with the male connector of the quick connector; and the other end of the sealing lantern ring is provided with a fastening strip. After the nylon pipe quick connector is loaded and a vehicle runs, effective dust prevention can be achieved, dust entering is reduced, further the reliability of oil pipe connection is guaranteed, and the service life of a fuel system pipeline is prolonged; the condition that the disassembly and the assembly are inconvenient due to the entering of dust is avoided, and the convenience for disassembling and replacing the oil pipe and the maintenance efficiency are improved; simple structure, easy operation and low cost.

Description

Nylon tube quick connector dustproof sheath

Technical Field

The utility model relates to a car fires the sealed technical field of oil pipe way quick-witted joint, especially relates to a nylon pipe quick-witted joint dustproof sheath.

Background

The nylon pipe quick connector is widely applied to an automobile fuel system due to the advantages of light weight, convenience in installation and the like, and an automobile fuel pipeline is connected with an engine, a fuel filter, a fuel sensor and a fuel change-over valve through the quick connector so as to achieve the fuel conveying and sealing effects.

As shown in fig. 1, the conventional nylon tube quick connector is used by interference fit of a female connector 101 and a male connector 102, and when the nylon tube quick connector is used, sealing is realized by contact between a sealing ring inside the female connector and the surface of the male connector, but a certain gap still exists after the nylon tube quick connector and the male connector are connected in an inserted manner. In addition, since the latch 103 is located outside the female connector 101, a gap is also left between the female connector 101 and the latch 103 to ensure smooth movement of the latch during the assembling and disassembling process. During the actual use, the gap that dust accessible above-mentioned two positions gets into in the joint and fills up the gap gradually, leads to the maintenance to dismantle the difficulty, reduces fuel system reliability and leakproofness simultaneously.

In order to solve the technical problem, a person skilled in the art proposes to use a dustproof cap to protect a nylon tube quick connector, and a patent document with the publication number of CN207486040U provides a quick connector dustproof cap with an anti-slip and anti-drop function, wherein a dustproof cap body is sleeved on the quick connector, so that the quick connector is integrally wrapped by the dustproof cap body to prevent dust and foreign matters from entering the quick connector. However, the existing dustproof cap can only protect the nylon pipe quick connector in the transportation process of parts, and the dustproof cap is detached after loading is finished and cannot continue to prevent dust.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a nylon tube quick connector dustproof sheath. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

The utility model adopts the following technical scheme:

the utility model provides a nylon tube quick connector sheath that prevents dust, include: the sealing device comprises a sealing sleeve ring and a base, wherein the base is arranged at the end part of the sealing sleeve ring and closes one end of the sealing sleeve ring;

the base is provided with an installation through hole matched with the male joint of the quick connector;

the other end of the sealing lantern ring is provided with a fastening strip, the front end face of the fastening strip is provided with an inclined plane, and the rear end face of the fastening strip is provided with an annular groove.

The sealing lantern ring is composed of an inner ring body and an outer ring body, and the outer ring body is sleeved on the outer surface of the inner ring body; the inner-layer ring body is made of ethylene propylene rubber; the outer-layer ring body is made of nitrile rubber.

Wherein, the terminal surface of the sealed lantern ring is seted up and is sunk the mesa, tightly decide the strip setting and be in sink on the mesa, just tightly decide the lateral surface of strip with the interior wall connection of the sealed lantern ring, tightly decide the rear end face of strip with sink the mesa and connect.

Preferably, the front end face of the fastening strip and the end face of the sealing sleeve ring are located on the same plane, and an included angle between the inclined face and the end face of the sealing sleeve ring is 30-45 degrees.

Preferably, the groove depth of the annular groove is half of the thickness of the sealing collar.

Preferably, a nylon pipe quick connector dustproof sheath, still include: and the protective gasket is arranged on the hole wall of the mounting through hole.

Preferably, the protective pad both ends set up the stationary blade, so that protective pad encloses with two stationary blades and establishes and form the mounting groove, the hole edge of installation through-hole inlays to be put in the mounting groove.

The utility model discloses the beneficial effect who brings:

1. the structure design of the utility model can effectively prevent dust after the nylon pipe quick connector is loaded and during the running of the vehicle, thereby reducing the entering of dust, further ensuring the reliability of the connection of the oil pipes and prolonging the service life of the fuel system pipeline;

2. the sealing performance of the nylon pipe quick connector is improved, the condition that the nylon pipe quick connector is inconvenient to assemble and disassemble due to dust entering is avoided, and the convenience for disassembling and replacing the oil pipe and the maintenance efficiency are improved;

3. the structure design of the utility model does not affect the pressing of the locking during the disassembly and assembly, simultaneously improves the hard hand feeling of the female connector, reduces the tearing risk to the nail when the quick connector is pressed vigorously, and plays a role in protection;

4. simple structure, easy operation and low cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a nylon tube quick connector in the prior art;

FIG. 2 is a schematic view of the installation of the dustproof sheath of the present invention;

FIG. 3 is a schematic cross-sectional view of the dustproof sheath of the present invention;

fig. 4 is a schematic view after the installation of the present invention is completed.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are only some, and not all embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As before, because of the automobile operation in service environment relatively poor, in a large amount of dusts got into the gap of the quick connector of nylon tube, block up locking mechanism and lead to oil pipe maintenance to dismantle the difficulty, need just can dismantle oil pipe after knocking, purging the clearance dust, if dust and fuel mix, the clearance degree of difficulty can be higher, finally causes maintenance duration extension, and cost of maintenance risees the problem, also can reduce fuel system's reliability and leakproofness simultaneously.

To solve the above problems, as shown in fig. 2-3, in some illustrative embodiments, the present invention provides a nylon tube quick connector dustproof sheath, including: a sealing collar 1 and a base 2.

The sealing lantern ring 1 is in a sleeve shape, the shape of the sealing lantern ring is designed by copying with the female connector 101 of the nylon pipe quick connector, the sealing lantern ring is tightly attached to the female connector 101, and the appearance of the quick female connector is not affected while the sealing lantern ring is not easy to fall off. The base 2 is a flat plate, is arranged at the end part of the sealing sleeve ring 1 and seals one end of the sealing sleeve ring 1. The sealing collar 1 serves to protect a gap between the female connector 101 and the latch 103, and the base 2 serves to protect a gap between the female connector 101 and the male connector 102.

The base 2 is provided with a mounting through hole 3, and the mounting through hole 3 is matched with the male connector 102 of the nylon pipe quick connector, wherein the matching means that the hole size of the mounting through hole 3 is in interference fit with the size of the male connector 102. During the use, will the utility model discloses a dustproof sheath cover is established on female joint 101, and the dustproof sheath is assembled with female joint 101 and is supplied with the material along with the nylon tube assembly, uses dustproof stopper in the transportation insert female joint 101 through installation through-hole 3, seals jointly through dustproof stopper and base 2. When the dust plug is removed, the male connector 102 is inserted into the female connector 101, and the male connector 102 and the base 2 are sealed together, as shown in fig. 4.

To ensure flexibility, the base 2 may be made of ethylene propylene rubber so that the male connector 102 is smoothly assembled through the boss and is not easily damaged.

The sealing lantern ring 1 is made of double-layer rubber materials, namely the sealing lantern ring 1 is composed of an inner ring body 4 and an outer ring body 5, and the outer ring body 5 is sleeved on the outer surface of the inner ring body 4. The material of inlayer ring body 4 is ethylene propylene rubber, and elasticity is better, still does not influence the kayser when guaranteeing the leakproofness and dismantles normally pressing down, and it is not fragile after pressing down, guarantees simultaneously that the male joint pegs graft and still seals with male joint 102 through base 2 behind the boss. The outer-layer ring body 5 is made of nitrile rubber, has good oil resistance, and ensures that gasoline cannot expand or deform after being attached to the outer-layer ring body.

The other end of the sealing sleeve ring 1 is provided with a fastening strip 6, and the fastening strip 6 can ensure the connection stability between the sealing sleeve ring 1 and the female connector 101. The front end surface of the fastening strip 6 is provided with an inclined surface 61, and the rear end surface is provided with an annular groove 62. In-process on female joint 101 is being overlapped with the sealing sleeve ring 1, female joint 101 surface extrusion tightly decides strip 6, and the sealing sleeve ring 1 removal of can being convenient for of the design on inclined plane 61, and the design of annular groove 62 makes tightly decides strip 6 have certain deformability simultaneously to be convenient for assemble the sealing sleeve ring 1 on female joint 101, simultaneously, tightly decides strip 6 after the assembly still can play limiting displacement, avoids the sealing sleeve ring 1 to drop.

Preferably, the front end face of the fastening strip 6 and the end face of the seal collar 1 are located on the same plane, and the inclined face 61 forms an angle a of 30 ° to 45 ° with the end face of the seal collar 1. The stability of the holding strip 6 is improved and the movability of the sealing collar 1 is further improved.

Preferably, the groove depth h1 of the annular groove 62 is half of the thickness h2 of the sealing collar, so that the deformability of the fastening strip 6 is ensured, and the convenience of assembly is further improved.

The terminal surface of the sealing lantern ring 1 is provided with a sinking table-board 7, the fastening strip 6 is arranged on the sinking table-board 7, the outer side surface of the fastening strip 6 is connected with the inner wall of the sealing lantern ring 1, and the rear end surface of the fastening strip 6 is connected with the sinking table-board 7. Above-mentioned structural design is convenient for install tightly decide strip 6 on the sealed lantern ring 1 when being convenient for make firstly, secondly promotes the steadiness of tightly deciding strip 6.

The utility model discloses still include: protective gasket 8, protective gasket 8 set up on the pore wall of mounting hole 3, improve base 2's durability, avoid violence to pull out and insert the damage that leads to dustproof sheath. Preferably, 8 both ends of protection gasket set up stationary blade 9, and stationary blade 9 and protection gasket 8 are the integrated into one piece structure to make protection gasket 8 and two stationary blades 9 enclose to establish and form the mounting groove, the hole edge of installation through-hole 3 inlays and puts in the mounting groove, further plays the effect of protection base 2, and guarantees protection gasket 8's stability.

The utility model provides an effective dustproof and low-cost nylon tube quick connector's dustproof sheath at vehicle operation in-process accomplishes to compromise oil resistance and suitable hardness simultaneously, avoids the dust in gap between the gap between female joint and the kayser, female joint and the male joint to get into.

The kayser is pressed down and is out of shape and need certain inflation space when dismantling, and is in free state at the in-process kayser of driving, and kayser inflation space is not full of, has great gap in, the utility model discloses still can guarantee higher leakproofness under the prerequisite of guaranteeing not to influence kayser normal use.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides a nylon tube quick connector dustproof sheath which characterized in that includes: the base is arranged at the end part of the sealing sleeve ring and closes one end of the sealing sleeve ring;

the base is provided with an installation through hole matched with the male joint of the quick connector;

the other end of the sealing lantern ring is provided with a fastening strip, the front end face of the fastening strip is provided with an inclined plane, and the rear end face of the fastening strip is provided with an annular groove.

2. The nylon pipe quick connector dustproof sheath as claimed in claim 1, wherein the sealing sleeve ring is composed of an inner ring body and an outer ring body, and the outer ring body is sleeved on the outer surface of the inner ring body; the inner-layer ring body is made of ethylene propylene rubber; the outer-layer ring body is made of nitrile rubber.

3. The nylon pipe quick connector dustproof sheath as claimed in claim 2, wherein a sinking table top is arranged on the end face of the sealing sleeve ring, the fastening strip is arranged on the sinking table top, the outer side face of the fastening strip is connected with the inner wall of the sealing sleeve ring, and the rear end face of the fastening strip is connected with the sinking table top.

4. The nylon pipe quick connector dustproof sheath as claimed in claim 3, wherein the front end face of the fastening strip and the end face of the sealing sleeve ring are located on the same plane, and an included angle between the inclined face and the end face of the sealing sleeve ring is 30-45 °.

5. The nylon tube quick connector dustproof sheath as claimed in claim 4, wherein the groove depth of the annular groove is half of the thickness of the sealing collar.

6. The nylon tube quick connector dustproof sheath as set forth in claim 5, further comprising: and the protective gasket is arranged on the hole wall of the mounting through hole.

7. The nylon pipe quick connector dustproof sheath as claimed in claim 6, wherein fixing pieces are arranged at two ends of the protection gasket, so that the protection gasket and the two fixing pieces surround to form a mounting groove, and the hole edge of the mounting through hole is embedded in the mounting groove.

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