CN2209747Y

CN2209747Y - Connector for pipes

Info

Publication number: CN2209747Y
Application number: CN 94204781
Authority: CN
Inventors: 朴室相
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-11
Filing date: 1994-01-06
Publication date: 1995-10-11
Anticipated expiration: 2004-01-06

Abstract

The utility model discloses a connecting piece for pipes for providing the connector for pipes which has the advantages of simple pipe combination, leaving out the process of decomposition, low price, improved performance, and simple structure. The connecting piece for pipes is composed of a pipe joint 200 and a fastener 120. The utility model is characterized in that the pipe joint 200 has an inner pipe 150, an annular hollow part 148, and an annular flute 150a; the inner pipe 150 is integrally shaped on the inner side of a second position 140, at a limited interval; the annular hollow part 148, in which one end of a pipe 110 can be plugged, is composed of the second position 140 and the inner pipe 150; the annular flute 150a, which can be used for plugging one end of the pipe 110 in the hollow pipe 148 and combining the hollow pipe 148 and one end of the pipe 110 hermetically, is formed on the peripheral surface of the inner pipe 150.

Description

Connector for pipes

The application is about tubular union, particularly can make the tubular union of the airtight combination in two end part of pipe.

The tubular union in past, as shown in Figure 1, 2, link shown in the last figure is made of following parts:

form screw section

3a, 4a respectively on the outer circumferential face at the 1st, 2 positions of the link that pipe fitting is coupled together, what form between

screw section

3a, 4a that connection pipe fitting uses passes through the hex surface that pipe wrench or spanner are fixed, on the terminal side inner peripheral surface at the 2nd position 4, form the lip portions 4b that closes with a termination of pipe 10, be used in conjunction with pipe fitting 10, shown in Fig. 2 A, 2B, on the forward end inner peripheral surface at the 2nd position 4, form the pipe joint 1 of coniform inclined-plane 4c; With form groove 15a at central position, on end direction, forming the gradually thin tip shape conical surface 15b of thickness, the pressure ring 15 of 15c respectively in the both sides of groove 15a; And hex surface 6 sides that are fixed on pipe joint 1 with pipe wrench or spanner when connection pipe fitting are carried out the fastening piece 20 of threaded joint, shown in Fig. 2 B, in this fastening piece 20, form the screw section 20b that the screw section 4a on the outer circumferential face with the 2nd position 4 of pipe joint 1 matches, and at terminal side formation conical surface 20c, when with pipe jointing, the conical surface 15b of pressure ring 15 can be pressed to pipe 10 central directions, pipe joint 1 is combined with pipe 10 tightness, form making of prolonging at conical surface 20c place and manage 10 through holes that pass through 22.

In the tubular union in past of said structure, to the through hole 22 1 side insertion tubes 10 of fastening piece 20, and pressure ring 15 is contained in after the outer circumferential face of pipe 10, a side end face of managing 10 is bonded on the lip portions 4b.Then, the conical surface 15b of pressure ring 15 is bonded on the coniform inclined-plane 4c, with pipe wrench or spanner etc. the hex surface 20a of fastening piece 20 is rotated under gripping orientation, simultaneously screw section 20b is screwed on the 4a of screw section, be pressed on the conical surface 15b with inclined-plane 4c, make conical surface 20c push down conical surface 15c again, shown in Figure 1B, pressure ring 15 makes the inner peripheral surface of pipe 10 constantly outstanding to its center, and the outer circumferential face of pressure ring 15 with pipe 10 joined airtightly.

Though, the tubular union of said structure is can combine the outer circumferential face of pressure ring 15 with pipe 10 airtightly by pipe joint 1 and fastening piece 20 are screwed, but by pipe joint 1, the structure that pressure ring 15 and fastening piece 20 are formed, complex structure not only, and also have when pressure ring 15 is lost with regard to out of use problem, in addition because what sell is the tubular union of insertion pressure ring 15 between the 2nd position 4 and the fastening piece 20 fastening by screw section 4a, when stating the article connection pipe fitting in the use, to shown in Fig. 2 B, pull down fastening piece 20, after the decomposition, the peripheral part of pipe 10 is inserted in the through hole 22 and pressure ring 15 of fastening piece 20, for another example Figure 1A, shown in the 1B tube end is bonded on the bead 4b, then, also must carry out fastening piece 20 is tightened in operation on the 4a of screw section, so variety of problems such as the working tool requirement is many are arranged.

In order to address the above problem, the application's purpose provides a kind of pipe fitting in conjunction with simple to the application, needn't decompose the tubular union of the simple structure that quality is good, price is low exactly.

The application's in order to achieve the above object tubular union is made up of pipe joint and fastening piece, it is characterized in that on the aforementioned tube joint, forming the bead of joining with pipe one end that passes the through hole of above-mentioned fastening piece, termination in aforementioned tube is combined under the state of above-mentioned lip portions, when the fastening piece that the outer circumferential face with the 2nd position is combined tightens up, compressing by the conical surface that on the inner peripheral surface of above-mentioned fastening piece, forms, the circumferential surface of aforementioned tube is pressed to the airtight portion that the front end from the 2nd position that its center makes it to give prominence to stretches out, and make when compressing at the conical surface that on inner peripheral surface, forms that forms between the front end at above-mentioned the 2nd position and the airtight portion and above-mentioned airtight portion by above-mentioned fastening piece above-mentioned airtight to its center annular recess of bending easily.

And, the application's feature is that the aforementioned tube joint also has in the inboard at the 2nd position limiting the interior pipe that forms at interval, but the ring-type hollow portion that has an end of the made pipe that is formed by above-mentioned the 2nd position and interior pipe to insert reaches an end of insertion tube in above-mentioned hollow portion and the annular recess that forms on its outer circumferential face of pipe in above-mentioned that combines airtightly.

Fig. 1 represents tubular union in the past, and Figure 1A is the sectional view of explanation pipe jointing method, and Figure 1B is the sectional view of the complete bonding state of pipe, and Fig. 1 C is the External view of the complete bonding state of pipe fitting,

Fig. 2 A is the perspective exploded view of tubular union in the past,

Fig. 2 B is the decomposition sectional perspective view of Fig. 2 A,

Fig. 3 is the perspective exploded view of explanation the application one embodiment's tubular union,

Fig. 4 is the sectional view of the application one embodiment's the complete bonding state of tubular union,

Fig. 5 is the amplification view of A portion among Fig. 4,

Fig. 6 is the sectional view with the pipe fitting bonding state of the application's the 2nd embodiment's tubular union,

Fig. 7 is the amplification view of B portion among Fig. 6,

Fig. 8 is the sectional drawing with the pipe fitting coupled condition of the application the 3rd embodiment's tubular union,

Fig. 9 is a C portion amplification view among Fig. 8,

Figure 10 is the perspective exploded view with the application the 4th embodiment's tubular union,

Figure 11 is the sectional view with the complete bonding state of pipe fitting of the application the 4th embodiment's tubular union,

Figure 12 is a D portion amplification view among Figure 11,

Figure 13 is the sectional view of representing the pipe fitting bonding state with the application the 5th embodiment's tubular union,

Figure 14 is a B portion amplification view among Figure 13,

Figure 15 is the perspective exploded view of the application the 6th embodiment's tubular union,

Figure 16 is the sectional view of connection pipe fitting process on explanation the application the 6th embodiment's the tubular union,

Figure 17 is the sectional drawing with the pipe fitting coupled condition of the application the 6th embodiment's tubular union,

Figure 18 is the perspective exploded view of explanation with the application the 7th embodiment's tubular union,

Figure 19 is the sectional view with the complete bonding state of pipe fitting of the tubular union of the application's the 7th enforcement,

Figure 20 is the amplification view of F portion among Figure 19,

Figure 21 is the sectional view of the pipe fitting bonding state of the expression tubular union of using the application the 8th embodiment,

Figure 22 is the amplification view of G portion among Figure 21,

Figure 23 is the sectional view of pipe fitting coupled condition of using the application the 9th embodiment's tubular union,

Figure 24 is a H portion amplification view among Figure 23,

Figure 25 is a tubular union of using the application the 10th embodiment, the sectional view of expression pipe fitting bonding state,

Figure 26 is an I portion amplification view among Figure 25.

Embodiment 1

The application's embodiment is described in detail in detail with reference to the accompanying drawings.

Shown in Fig. 3-5, the application's tubular union is made of pipe joint 100 and fastening piece 120.

In the aforementioned tube joint 100, on the outer circumferential face at the 1st, 2

positions

30,40 of connection pipe fitting, form

screw section

30a, 40a, between

screw section

30a, 40a, form hex surface 60 with pipe wrench or spanner chucking, on the inner peripheral surface at the 2nd position 40, as shown in Figure 4, forming the lip portions 40b that engages with pipe 110 1 side ends when combining,, airtight the 40d of one-tenth conical surface shape that reaches again the attenuation of thickness gradually of forward end formation one through annular groove 40c arranged at the front end of screw section 40a with pipe 110.

The hex surface 120a that can clamp with pipe wrench or spanner etc. when being formed on connection pipe fitting near the outer circumferential face in the middle of fastening piece 120, on the inner peripheral surface of fastening piece 120, form the screw section 120b that cooperates with screw section 40a, when being formed on connecting pipe 110, the base portion of screw section 120b the conical surface of airtight 40d can be pressed to the central direction of pipe 110, make pipe 110 and the pipe joint 100 airtight conical surface 120c that combine, and the conical surface 120c that ins succession forms the through holes 122 that can supply pipe 110 to pass in and out.

According to above-mentioned, the through hole 122 of one end of pipe 110 by fastening piece 120 is bonded on the lip portions 40b, when being screwed onto fastening piece 120 on the 40a of screw section, by means of the annular recess 40c that forms between screw section 40a and airtight the 40d, conical surface 120c can constantly be pressed to the conical surface of airtight 40d pipe 100 directions, and the outer circumferential face of pipe 110 is compressed to its central direction.

In the tubular union, the fastening piece 120 that is screwed onto screw section 40a when pipe joint 100 unclamps, fastening piece is combined on the pipe joint 100 provisionally, pipe 110 is inserted to make in the through holes 122 manage 110 engaged at end on lip portions 40b.

Then, pipe joint 100 and fastening piece 120 are tightened, through airtight the integrally formed 40d of groove 40c, owing to the effect of conical surface 120c is pressed to pipe 110 sides and formed as shown in Figure 4 combination, pipe 110 combine with the tightness of pipe joint 100 can prevent to manage 110 interior mobile gas or liquid leakages.

At this moment, owing to form groove 40c between screw section 40a and airtight 40b, make airtight 40d pressurized and bend towards easily and manage 110 sides under conical surface 120c effect, a then airtight 40d connects airtight airtightly and manages on 110 the outer circumferential face.

For the above reasons, the application's tubular union simple structure, during connection pipe fitting, under pipe joint and the interim bonding state of fastening piece, pipe is inserted by through hole, pipe end is in be bonded on the state of lip portions, with spanner, pipe wrench fastening piece is rotated and be combined on the 2nd position of pipe joint, therefore have in conjunction with and decompose easy extremely excellent effect.

And, owing between the screw section at the 2nd position and airtight portion, be formed with annular recess, utilize the effect of the conical surface that the conical surface of airtight portion is pressed to the pipe side, make airtight easily to pipe lateral bending song, thereby making link form tightness easily on the outer circumferential face of pipe fixes, and, also can improve performance because simple structure can not only make manufacture cost reduce.

Embodiment 2

In Fig. 6,7, the structure identical with embodiment 1 adopts identical symbol, no longer repeat specification.The structure of embodiment 2 tubular union and embodiment's 1 structure difference be replace fastening piece 120 inner crest faces among the embodiment 1 conical surface 120c be to be formed with stair-stepping end difference 127, be provided with the occasion of above-mentioned end difference, after being combined in a termination of pipe 110 on the lip portions 40b, fastening piece 20 and the 2nd position 40 are spirally connected, because end difference 127 is pressed to pipe 110 center to airtight the further brute force of 40d, makes the inner side surface pressing airtightly of managing the 110 and the 2nd position 40.

Embodiment 3

At Fig. 8, among 9 the 3rd embodiment, the part identical with embodiment 1 adopts prosign, no longer repeat specification, the structure of embodiment 3 tubular union and embodiment's 1 structure difference is to form to insert natural rubber in the 1st embodiment on the inner peripheral surface at the 2nd position 40, polytetrafluoroethylene, or the filling of the filling component 128 made of man made rubber is with groove 129, on airtight 40d, form and limit a plurality of otch 131 at interval, as mentioned above, after filling that filling component 128 is packed into is used in the groove 129, as in Example 1, one termination of pipe 110 is combined on the bead 40b, fastening piece 120 is tightened on the 2nd position 40 of pipe joint 100, at this moment, airtight 40d is subjected to the compressing constantly of conical surface 120c and further presses to the center of pipe 110, in the outer circumferential face and filling component 128 airtight joints that make pipe 110, also owing on airtight 40d, form a plurality of notchs 131 that the qualification interval is arranged along the longitudinal direction of pipe joint, and make further airtight joining of pipe 110 and filling component, so can prevent to manage gas or the liquid leakage that flows in 110.

Embodiment 4

The difference of the enforcement 4 of Figure 10-12 and embodiment 1 tubular union structure is to form on the inner peripheral surface of airtight 40d in embodiment 1 to insert natural rubber, and the filling of the filling component 133 of polytetrafluoroethylene, man made rubber etc. is with groove 132.As mentioned above, after in filling component that filling component 133 is packed into is packed usefulness groove 132 into, as in Example 1, one termination of pipe 110 is combined on the bead 40b, again fastening piece 120 is tightened on the 2nd position 40 of pipe joint 100, at this moment, on the front end at the 2nd position 40 through groove 40c and airtight integrally formed 40d, under conical surface 120c effect, constantly press to pipe 110 center and then airtight joint, thereby can prevent to manage the gas that flows in 110 or liquid to external leaks.

Embodiment 5

The 5th embodiment among Figure 13-15 and the structure difference of the tubular union among the embodiment 1 are to form on the inner peripheral surface of airtight 40d in embodiment 1 to insert natural rubber, the filling of filling component such as polytetrafluoroethylene, man made rubber 128 is inserted with groove 129, as mentioned above, filling component 128 filling component of packing into is inserted with after in the groove 129, as in Example 1, one termination of pipe 110 is combined on the lip portions 40b, again fastening piece 120 is tightened on the 2nd position 40 of pipe joint 100.At this moment, press to the center of pipe 110 owing to the continuous extruding of conical surface 120c through airtight integrally formed 40d of groove 40c face at the front end at the 2nd position 40, make pipe 110 outer circumferential face and 128 airtight joining of filling component, so the gas or the liquid leakage that can prevent from the pipe to be flowed.

Embodiment 6

Among the embodiment 6 among Figure 15-17, the member identical with embodiment 1 uses identical symbol, no longer repeat specification, the structure difference of the 6th embodiment 6 shown in Figure 15-17 and embodiment's 1 tubular union is a pipe 150 in 140 inboards, the 2nd position of the pipe joint 200 of the pipe 110 of packing into form with the interval that limits, the ring-type hollow portion 148 that forms by interior pipe 150 and the 2nd position 140, owing to the front end at the 2nd position 140 expose in pipe 150 become easily pipe 110 structures of packing into, after in above-mentioned hollow portion 148 that pipe 110 is packed into, when the 2nd position 140 is spirally connected with fastening piece 120, one one of pipe fitting 110 is recessed into because of compression, can combine pipe 110 with pipe joint 200 airtight cutting, also formation annular recess 150a on the outer circumferential face of interior pipe 150.

The as above embodiment's 6 of Gou Chenging tubular union with fastening piece 120 interim bonding state on pipe joint 200, is packed pipe 110 in the through hole into, and the end of managing 110 is inserted in the ring-type hollow portion 148 as shown in Figure 16.As shown above fastening piece 120 and pipe joint 200 are spirally connected again, conical surface 120c engages with the conical surface of airtight 140d and little by little pipe 110 sides is pressed in the inboard of airtight 140d, at this moment, the inner peripheral surface of pipe 110 constantly is recessed into annular recess 150a and forms airtight combination.

As mentioned above, in the 6th embodiment, again pipe end is packed in the above-mentioned hollow portion after packing into pipe in the through hole, be combined on the pipe joint airtightly owing to fastening piece makes pipe, therefore decomposing simple, simple with structure compared in the past, manufacture cost reduces, and the extremely excellent effect of the reliable performance of making is arranged.

Embodiment 7

In the 7th embodiment of Figure 18-20, the structure identical with the 6th embodiment used identical symbol, no longer repeat specification, the structure difference of the 7th embodiment and the 6th embodiment's tubular union are to form the filling groove 160a that inserts filling component 190 on the inner peripheral surface of airtight integrally formed on the 2nd position 140 140d.

So, after filling component that filling component 190 is packed into is inserted in the groove 160, as embodiment 6, a pipe end of 110 is packed in the hollow portion 148, fastening piece 120 is screwed onto on the 2nd position 140, and at this moment, airtight 140d constantly is subjected to conical surface 120c compressing and presses to the center of pipe 110, between pipe 110 outer circumferential face and filling component 190, form airtight joining, so can prevent to manage 110 interior mobile gas or liquid leakages.

Embodiment 8

In Figure 21,22, the part identical with embodiment 6 adopts same-sign, no longer repeat specification.

The structure difference of the 8th embodiment and embodiment's 6 tubular union is to form to insert natural rubber on the inner peripheral surface at the 2nd position 140 among Figure 21-22, and the filling of filling components such as polytetrafluoroethylene, man made rubber 191 is inserted with groove 193.As mentioned above, after filling component that filling component 191 is packed into is packed into groove 193 centers, as the 6th embodiment, one end of pipe 110 in the interior pipe 150 and the 2nd position 140 formed hollow portions that insert by pipe joint 200 in energy hole 122, is screwed onto fastening piece 120 on the 2nd position 140 of pipe joint 200 again.At this moment, the front end at the 2nd position 140 constantly is subjected to the compressing of conical surface 120c and presses to pipe 110 center through airtight integrally formed 140d of groove 140c, and make pipe 110 outer circumferential face and 191 airtight joining of filling component, thereby can prevent to manage gas or the liquid leakage that flows through in 110.

Embodiment 9

Figure 23, structure identical with embodiment 6 in 24 is used identical symbol, no longer repeat specification, the difference of the structure of the tubular union among the embodiment 9 and the foregoing description 6 is to form the conical surface 120c of the end difference 195 of stairstepping in order to alternate embodiment 6 fastening piece 120 inboards, in the occasion that is provided with above-mentioned end difference 195, a pipe end of 110 is packed into by after in the interior pipe 150 of pipe joint 200 and the 2nd position 140 formed hollow portions by through hole 122, fastening piece 120 is screwed onto on the 2nd position 140 of pipe joint 200, the center of airtight 140d further being pressed to pipe 110 owing to end difference 127 presses together the inner side surface at the 2nd position 140 and pipe 110 airtightly.

Embodiment 10

Part identical with embodiment 6 in Figure 25,26 is used identical symbol, not repeat specification.Embodiment 10(is referring to Figure 25, the structure of tubular union 26) and embodiment's 6 difference is to form to insert on the inner peripheral surface at the 2nd position 140 in the 6th embodiment to use natural rubber, polytetrafluoroethylene, or the filling of the filling component 199 of man made rubber system is inserted with groove 202, on airtight 140d, form a plurality of notchs 198 at interval to limit, as mentioned above, insert with after the groove 202 at filling component that filling component 199 is packed into, as in Example 6, a pipe end of 110 is inserted in the hollow portion that interior pipe 150 and the 2nd position 140 by pipe joint 200 form by through hole 122, again fastening piece 120 is screwed onto on the 2nd position 140 of pipe joint 100.At this moment, airtight 140d is subjected to the compressing of conical surface 120c and the center of further being pressed to pipe 110 joins outer circumferential face and the filling component 199 of pipe 110 airtightly, thereby can prevent to manage gas or liquid leakage mobile in 110.

Claims

1, a kind of tubular union of being made up of pipe joint 100 and fastening piece 120 is characterized in that:

On aforementioned tube joint 100, form the lip portions 40b that joins with pipe 110 1 sides of through hole 122 by above-mentioned fastening piece 120; Under the state of a side engagement at above-mentioned lip portions 40b of aforementioned tube 110, when the fastening piece 120 that the outer circumferential face with the 2nd position 40 is combined tightens up, by the compressing of the conical surface 120c that on the inner peripheral surface of above-mentioned fastening piece 120, forms, the circumferential surface of aforementioned tube 110 is pressed to airtight the 40d that the front end to the 2nd position 40 that its center makes it to give prominence to stretches out; Make above-mentioned airtight 40d to its center annular recess 40c of bending easily when compressing at the conical surface that on inner peripheral surface, forms 120 that forms between the front end at above-mentioned the 2nd position 40 and airtight the 40d and above-mentioned airtight 40d by above-mentioned fastening piece 120.

2, a kind of tubular union described in claim 1, it is characterized in that: on the inner peripheral surface of above-mentioned fastening piece 120, form end difference 127, when above-mentioned fastening piece 120 is tightened up on the 2nd position 04, this end difference 127 will be oppressed to the center of pipe 110 by airtight integrally formed 40d of annular recess 40c.

3, a kind of tubular union described in claim 1 is characterized in that: on above-mentioned airtight 40d, form a plurality of joggling parts 131 at interval to limit on its longitudinal direction, the insertion that also forms filling component 128 simultaneously within it on the side face is with groove 129.

4, a kind of tubular union as claimed in claim 1 is characterized in that: above-mentioned airtight 40d also forms the groove 132 of inserting filling component 133 on the side face within it.

5, a kind of tubular union as claimed in claim 1 is characterized in that: above-mentioned airtight 40d also forms the filling component insertion groove 129 that inserts filling component 128 on the side face within it.

6, a kind of tubular union that constitutes by pipe joint 200, fastening piece 120, it is characterized in that: aforementioned tube joint 200 has the interior pipe 150 that forms at interval with qualification in the inboard at the 2nd position 140, the ring-type hollow portion 148 that also has made pipe 110 1 ends that form by above-mentioned the 2nd position 140 and interior pipe 150 to insert, but reach an end of insertion tube 110 in above-mentioned hollow portion 148 and it is combined airtightly in above-mentioned, manage the annular recess 150a that forms on 150 the outer circumferential face.

7, a kind of tubular union described in claim 6 is characterized in that: forming the end difference 195 that can press to airtight the 140d that forms by annular recess 140c on the 2nd position front end the center of pipe 110 when tightening up on above-mentioned the 2nd position 140 with fastening piece 120 on the inner peripheral surface of above-mentioned fastening piece 120.

8, a kind of tubular union described in claim 6 is characterized in that: above-mentioned airtight 40d forms a plurality of joggling parts 198 at its longitudinal direction at interval to limit, and the insertion that also forms filling component 199 simultaneously within it on the side face is with groove 202.

9, a kind of tubular union described in claim 6 is characterized in that: above-mentioned airtight 140d, what also form filling component 190 within it on the side face inserts groove 160.

10, a kind of tubular union described in claim 6 is characterized in that: form the filling component that inserts filling component 191 and insert with groove 193 on the inner peripheral surface of above-mentioned airtight 140d.