CN208687229U - Protective cap - Google Patents

Abstract

The utility model provides a kind of protective cap, and the protective cap includes ontology, and the ontology has body cavity open at one end, and the body cavity walls of the ontology are circumferentially arranged the clamping part docked with the groove.Cooperation is docked with pipe fitting upper groove by setting clamping part, protective cap can be effectively prevented and fall.

Description

Protective cap

Technical field

The utility model relates to field of mechanical technique, in particular to a kind of protective cap.

Background technique

Protective cap plays an important role in the assembly and transportational process of high pressure fuel distribution pipe.On the one hand, protective cap High-pressure pipe connector is protected, colliding with and damaging for pipe joint screw thread and sealing surface is prevented；On the other hand, protective cap plays dust-proof work With preventing impurity from entering in distribution pipe from pipe fitting, influence the cleannes of distribution pipe.

Currently, the type of protective cap mainly has two kinds of following " big ", " small ".Wherein, please referring to Fig. 1 a and Fig. 1 b, Fig. 1 a is Structural schematic diagram before big protective cap and pipe fitting assemble in the prior art；Fig. 1 b is big protective cap and pipe fitting in the prior art Structural schematic diagram after assembly.As illustrated in figs. 1A and ib, non-threaded face of the big protective cap 10 ' in assembly with pipe fitting 11 ' 111 ' contacts, this just has certain width requirement to the non-threaded face of pipe fitting 11 ', meanwhile, also have one to the volume of protective cap Provisioning request, it is desirable to be able to most of volume of envelope pipe fitting 11 ', because of lesser 111 ' width of non-threaded face and lesser Protective cap volume, which will lead to protective cap and loosen, to be fallen, thus this also brings that sub- volume of part is heavy, and waste of material, cost mentions High adverse effect；Please referring to Fig. 2 a and Fig. 2 b, Fig. 2 a is that small protective cap shows with the structure before pipe fitting assembly in the prior art It is intended to；Fig. 2 b is small protective cap and the structural schematic diagram after pipe fitting assembly in the prior art.As shown in Figure 2 a and 2 b, small guarantor Helmet 12 ' is engaged in assembly with the flank 110 ' of pipe fitting 11 ', since the material of protective cap is plastics, pipe fitting 11 ' materials are steel, in the drawing process in protective cap and thread contact, are easy to produce particle, thus will affect distribution pipe Cleannes are easy to appear protective cap assembly tension and (are difficult to pull out simultaneously as the tolerance stack scattered error of injection molding and screw thread is bigger Under) or excessively loose (being easy to fall off) risk.In addition to this, two kinds of protective caps and pipe fitting 11 ' only at one (non-threaded face/ Flank) contact, thus protective cap can not be accurately positioned, and play deflection is easy to happen after by external force.

For deficiency existing for protective cap in the prior art, those skilled in the art always search for the method solved.

Utility model content

The purpose of this utility model is to provide a kind of protective caps, to solve to use existing for protective cap in the prior art not Foot.

In order to solve the above technical problems, the utility model provides a kind of protective cap, have reeded pipe fitting for protecting, The protective cap includes ontology, and the ontology has body cavity open at one end, and the body cavity walls of the ontology are circumferentially arranged to be had The clamping part docked with the groove.

Optionally, in the protective cap, the clamping part is disposed in proximity to the body of the open at one end of the ontology On cavity wall.

Optionally, in the protective cap, the clamping part is salient point.

Optionally, in the protective cap, the clamping part is convex line section.

Optionally, in the protective cap, the clamping part is bulge loop.

Optionally, further include positioning element in the protective cap, be set to the inside of the ontology and with described Body is coaxial, and the positioning element has the end face to match with the pipe fitting contact surface.

Optionally, in the protective cap, the positioning element is set to the inside top of the ontology.

Optionally, in the protective cap, the end face at the edge of the pipe fitting is the conical surface, the end of the positioning element Face is the conical surface.

Optionally, in the protective cap, the positioning element is circular cone ring or conical tube.

Optionally, in the protective cap, the groove is set on the non-threaded face or flank of pipe fitting.

In protective cap provided by the utility model, the protective cap includes ontology, and the ontology has open at one end Body cavity, the body cavity walls of the ontology are circumferentially arranged the clamping part docked with the groove.By the way that clamping portion is arranged Part docks cooperation with pipe fitting upper groove, and protective cap can be effectively prevented and fall.

On the other hand, when docking cooperation with the non-threaded face upper groove of pipe fitting in protective cap, during the drawing process will not Generate cleanliness issues.

On the other hand, positioning element is set in protective cap, is limited using positioning element by the position of ontology envelope pipe fitting It sets, effective position protective cap while also effectively prevent protective cap that play deflection occurs.

Detailed description of the invention

Fig. 1 a is the structural schematic diagram before big protective cap and pipe fitting assembly in the prior art；

Fig. 1 b is the structural schematic diagram after big protective cap and pipe fitting assembly in the prior art；

Fig. 2 a is the structural schematic diagram before small protective cap and pipe fitting assembly in the prior art；

Fig. 2 b is the structural schematic diagram after small protective cap and pipe fitting assembly in the prior art；

Fig. 3 is the main view of protective cap in an embodiment of the present invention；

Fig. 4 is the side view of protective cap in an embodiment of the present invention；

Fig. 5 is the top view of protective cap in an embodiment of the present invention；

Fig. 6 is the bottom view of protective cap in an embodiment of the present invention；

Fig. 7 a is the structural schematic diagram in an embodiment of the present invention, before protective cap and pipe fitting assembly；

Fig. 7 b is the structural schematic diagram in an embodiment of the present invention, after protective cap and pipe fitting assembly.

In Fig. 1 a to Fig. 2 b: 10 '-big protective caps；11 '-pipe fittings；110 '-flanks；111 '-non-threaded faces；12 '-is small Protective cap；

In Fig. 3 to Fig. 7 b: 20- protective cap；200- ontology；202- clamping part；21- pipe fitting；The non-threaded face 210-； 211- groove；22- positioning element；The 220- conical surface.

Specific embodiment

Below in conjunction with the drawings and specific embodiments to the utility model proposes protective cap be described in further detail.According to The advantages of explanation and claims below, the utility model and feature will become apparent from.It should be noted that attached drawing is all made of very Simplified form and use non-accurate ratio, only to it is convenient, lucidly aid in illustrating the mesh of the utility model embodiment 's.

The protective cap of the utility model is for protecting pipe fitting, especially protection to have reeded pipe fitting, such as pipe fitting End outer wall there is no groove 211, setting groove can be increased by working process, so as to subsequent protective cap envelope pipe fitting, Protective cap is avoided to fall.

Fig. 3, Fig. 4, Fig. 5 and Fig. 6 are please referred to, Fig. 3 is the main view of protective cap in this present embodiment；Fig. 4 is book implementation The side view of protective cap in example；Fig. 5 is the top view of protective cap in this present embodiment；Fig. 6 is protective cap in this present embodiment Bottom view.As shown in Fig. 3, Fig. 5 and Fig. 6, the protective cap 20 includes ontology 200, and the ontology 200 has body open at one end Chamber, the body cavity walls of the ontology 200 are circumferentially arranged the clamping part 202 docked with the groove.

Structural schematic diagram before please referring to the protective cap and pipe fitting assembly that Fig. 7 a and Fig. 7 b, Fig. 7 a are the utility model； The protective cap and the structural schematic diagram after pipe fitting assembly that Fig. 7 b is the utility model.It is described as shown in Fig. 3, Fig. 7 a and Fig. 7 b Clamping part 202 is disposed in proximity in the body cavity walls of the open at one end of the ontology 200.Clamping part described in the present embodiment 202 preferably salient point, the quantity of salient point are at least two.As shown in Figure 3 and Figure 6, the circle of inside one of protective cap 20 (leans on proximal end Portion) 8 salient points are evenly equipped with, when protective cap 20 and the assembly of pipe fitting 21,8 salient points are stuck in the circle groove on pipe fitting 21 In 211, in addition to this it is possible to be convex line section or bulge loop.Wherein, the clamping part 202 is specifically set to the body of ontology 200 The position of cavity wall, the position where protected 21 upper groove of pipe fitting 211 is set, so that it is guaranteed that clamping part 202 are connected in groove 211, and the two, which is realized, stablizes docking.

The groove 211 is set on the non-threaded face or flank of pipe fitting 21.Preferably, the groove 211 is arranged In (there is no the contacts of protective cap and the screw thread of flank) on the non-threaded face 210 of pipe fitting 21, to effectively prevent drawing It pulls out protective cap 20 and generates cleanliness issues in the process.

As shown in Figures 3 and 4, the body cavity of ontology 200 described in the present embodiment in a tubular form, the body cavity of usual ontology 200 Concrete shape is consistent with the appearance of pipe fitting 21, thus effectively envelope pipe fitting 21.

Please continue to refer to Fig. 3 and Fig. 6, shown protective cap 20 further includes positioning element 22, is set to the interior of the ontology 200 Side is simultaneously coaxial with the ontology 200, and the positioning element 22 has the end face to match with 21 contact surface of pipe fitting.Pass through There is the position that 21 contact surface of pipe fitting is limited with the end face that 21 contact surface of pipe fitting matches in positioning element 22, On the one hand, it can prevent protective cap 20 from play deflection occurs with effective position protective cap 20, on the other hand.

Please continue to refer to Fig. 7 a and Fig. 7 b, the edge of pipe fitting 21 described in the present embodiment is inclined-plane through chamfered, most The end face at the edge of the pipe fitting 21 is the conical surface eventually；It is corresponding, in order to limit the pipe fitting 21 edge end face position, The end face for designing the positioning element 22 is the conical surface 220.Preferably, the positioning element 22 be circular cone ring or conical tube, at this point, The bottom margin of the positioning element 22 is connect with the inner wall of ontology 200, and the top of the positioning element 22 is far from the ontology One end of 200 opening, the bottom of the positioning element 22 is close to one end of the opening of the ontology 200.

The protective cap of comparative analysis the utility model is with big protective cap and small protective cap in the prior art it is found that this is practical new The protective cap of type has the advantages that

1) compared with existing small protective cap, the non-spiral shell with pipe fitting is may be selected in the clamping part of the protective cap of the utility model Groove cooperation on line face, while preventing protective cap from falling, it is thus also avoided that protective cap and flank cooperate bring cleannes And drawing it is difficult the problems such as；

2) compared with existing big protective cap, the width for preparing the non-threaded face of pipe fitting can be greatly shortened, and need to only be reserved The position of one circle groove, therefore, the volume of protective cap and pipe fitting can suitably reduce, thus product light weight may be implemented Change, cost reduces；

3) compared with existing small protective cap and big protective cap, the protective cap of the utility model is using positioning element limitation by this The position of body envelope pipe fitting, effective position protective cap while, also effectively prevent protective cap that play deflection occurs.

Foregoing description is only the description to the utility model preferred embodiment, not to any limit of the scope of the utility model Fixed, any change, the modification that the those of ordinary skill in the utility model field does according to the disclosure above content belong to right and want Seek the protection scope of book.

Claims (10)

1. a kind of protective cap has reeded pipe fitting for protecting, which is characterized in that including ontology, the ontology has one The body cavity of end opening, the body cavity walls of the ontology are circumferentially arranged the clamping part docked with the groove.

2. protective cap as described in claim 1, which is characterized in that the clamping part is disposed in proximity to the opening of the ontology In the body cavity walls of one end.

3. protective cap as claimed in claim 2, which is characterized in that the clamping part is salient point.

4. protective cap as claimed in claim 2, which is characterized in that the clamping part is convex line section.

5. protective cap as claimed in claim 2, which is characterized in that the clamping part is bulge loop.

6. protective cap as described in claim 1, which is characterized in that further include positioning element, be set to the inside of the ontology And it is coaxial with the ontology, the positioning element has the end face to match with the pipe fitting contact surface.

7. protective cap as claimed in claim 6, which is characterized in that the positioning element is set to the medial roof of the ontology Portion.

8. protective cap as claimed in claim 6, which is characterized in that the end face at the edge of the pipe fitting is the conical surface, described fixed The end face of position component is the conical surface.

9. protective cap as claimed in claim 6, which is characterized in that the positioning element is circular cone ring or conical tube.

10. such as protective cap according to any one of claims 1 to 9, which is characterized in that the groove is set to the non-of pipe fitting On flank or flank.