CN2206887Y

CN2206887Y - Improved guide tube coupling adapter

Info

Publication number: CN2206887Y
Application number: CN 93201781
Authority: CN
Inventors: 王秀端
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-04
Filing date: 1993-02-04
Publication date: 1995-09-06
Anticipated expiration: 2003-02-04
Also published as: GB2274889A; GB9306693D0

Abstract

The utility model relates to an improved coupling adapter for a guide tube, which is used for connecting the end sections of two adjoining guide tubes on a coaxial line, at least comprising an external coupler, an adapter ring, a fixed ring accommodated in the external coupler, an elastic device, etc. Substantially, the adapter ring has a first end which can move in axial direction in the external coupler to force the fixed ring to be embedded into tube wall of the guide tube to form a coupling device, improving the defects that the joint of the existing adapter is uneasy to ascertain result in sliding, loosening, etc.

Description

Improved guide tube coupling adapter

The utility model is meant a kind of in order to engage the coupling gear of a pair of one-tenth concentric against the run end of relation relevant for the conduit coupling connection coupling of improvement especially; The structure that run after connecting is difficult for getting loose.

In the pipe and conduit system of many kinds of patterns, mainly be in order to some material is transferred to another fixed point by a place, thereby be widely used in engineering aspects such as general feedwater pipe arrangement, fire-fighting pipe arrangement, cold air conditioner pipe arrangement; Traditional practice is that the plurality of sections conduit is connected to constitute a continuous conduit system with coupling piece or joint to the end relation with the end, and the needs of special purposes are provided.

Before for some conduit that uses very general pattern, known technology was to make thread section at the opposed end of each conduit, continued to relatively move between this run and run to be joined, so that each run becomes to axially align; Usually this needs moving axially of adjacent run, do relative revolution therebetween simultaneously, but these conduits has comprised materials such as stainless steel, zinc, copper, and possessing according to its length has relative weight; Therefore not easy to operate when mounted, especially when the restriction that is subjected to site environment, even the rotation of conduit is non-impossible, also very difficult and effort; So the conduit that a kind of present stage is widely adopted connects means, is provided by Japanese industry.Possess substantially a joint is arranged, be provided with a groove, in order to the device collar along the end inner edge of joint.Feasible measure is, uses the marking tool of regulation to make a two-wire mark on the conduit appropriate location, and the distance and position behind conduit insertion joint roughly is to make the end of joint must be between the two-wire of conduit; Then joint is coated the part of conduit, be placed in the pressing in the groove of position of press structure front end, got correct angle facing to conduit, pressed the button of press structure, joint is bitten by the portion that pressing, can cause vibrations, make the mutual embedding of sleeve portion be merged into hexagon, the vibrations that caused when conveyance fluid or material also can not make sleeve portion get loose, collar portion also is compressed into ellipse simultaneously, and finishes the work that engages of pressing.

Its major defect is must especially buy more to use special marking tool, press, groove rolling machine, and cost is also higher than bothering; Moreover, only allow that a collar is arranged on the space of joint front end, so leak preventing effect is relatively poor.

The coupling that another pattern is arranged again, comprised the collar, metal washer at least, have internal thread C shape ring, can hold said modules adapter body, and a locknut constitute; In principle, make conduit insert adapter body after, can by the collar, packing ring, and C shape ring etc. coat, be engaged in the helical thread portion of adapter body outer wall via common wrench operation locknut, with so that C shape is encircled and can be fastened conduit, finish the adapter measure.This coupling can improve the shortcoming that existing joint must use press, groove rolling machine; But a new situation is found immediately, and the vibrations that caused when conveyance fluid or material can make the C shape ring that entangles conduit produce the phenomenon of slippage gradually, make the measure of original connecting duct destroyed.

Therefore, make the connection between the run, need not must do relatively revolution and fitting operation easily, and the restriction that can not be subjected to site environment is important as previous means; Possess above-mentioned condition simultaneously and don't, also be important with especially buying more mechanisms such as marking tool, press, groove rolling machine; And, stop the connection between the run, can not get loose because of the vibrations that conveyance fluid or material caused, it also is important causing the connection measure of run destroyed.

Therefore, main purpose of the present utility model promptly is to provide a kind of conduit coupling connection coupling of improvement; This coupling connection coupling can make the connection between the run, need not remake the restriction that site environment was operated or was subjected in relative revolution; Simultaneously need not buy more mechanisms such as marking tool, press, groove rolling machine, implement processing conduit etc.; And, can stop the vibrations that cause when conveyance fluid or material, can not make the conduit of connection that situation about getting loose gradually takes place.

Coupling of the present utility model connection coupling includes an outer joiner that possesses axial space at least, one adapter ring, one is allowed interior retaining ring and the elastic device of coupling piece outside, the outer join device passes through therebetween in order to holding conduit, have a first end and a second end, with one by first, second end formed in the shoulder etc. form, the outer join device has comprised female thread portion, makes an adapter ring have one first end to be allowed along the female thread portion of outer join device and moves freely; In fact, a retaining ring is allowed to be located in the axial space of outconnector, and retaining ring has a tooth ends, to outreaching device when moving, is forced to embed the duct wall periphery at adapter ring, has set up certain the combining with run of this coupling connection coupling.Tooth ends has been set suitable length of thread engagement; Therefore, the vibrations of the run that is caused when conveyance fluid or material be difficult to destroy the measure that combines between connector and the run; Simultaneously, combining between this coupling connection coupling and the run is actually a common wrench and finishes, and need not to use the special instrument etc. of pressing.

According to the coupling connection coupling of the utility model improvement, each run that is connected is the kenel that becomes corresponding; Include outer joiner, the outer join utensil has first end and the second end and extends through therebetween an axial space, and its big I makes adapter ring be easy to move therein and rotation.But include plural notch on the first end of coupling piece outside, after first end of adapter ring enters the outer join device fully, make positioning element enter these notches by adapter ring; Therefore, the vibrations that coupling connection coupling itself will be not can not produced because of run conveyance fluid or material, and rotating phenomenon is arranged.

Another purpose of the present utility model is to provide a kind of conduit coupling of improvement to join coupling; This coupling is difficult for getting loose gradually because of vibrations possessing to have with the run that is connected, and need not to use the special instrument of pressing to finish in conjunction with outside the effect of working, outside in the axial space of coupling piece, adjacent fixed ring two ends include elastic device respectively, after first end of adapter ring enters the outer join device fully, produce the benefit of preferable packing sealing relatively.

For the novel features that the utlity model has, and other purposes and effect, will be in hereinafter cooperating appended graphic explanation in detail, and be tending towards understanding; As shown in the figure:

Fig. 1 is a three-dimensional exploded view of the present utility model; This coupling connection coupling is into corresponding kenel, and in order to connect two sections conduits, Gu Tuzhong only shows structure on one side.

Fig. 2 is an axial cut-away view of the present utility model; Show that run has inserted in the axial space of coupling connection coupling, and adapter ring does not enter the schematic representation in the outer join device as yet fully.

Fig. 3 is another axial cut-away view of the present utility model; Show that adapter ring enters in the outer join device fully, force retaining ring to embed duct wall, describe the embodiment's schematic representation that connects two sections conduits with the coaxial relation of pushing against.

See also Fig. 1, the 2 conduit coupling connection couplings in order to the utility model improvement that connects a pair of run A, B are the kenels that become corresponding, include an outer join device, with Ref. No. 10 expressions; Outer join device 10 has an axial space 11 and defines the first end 12 and the second end 13 of this axial space 11; Make an adapter ring 20, in this axial space 11, move freely; In fact, a retaining ring 30 is allowed with elastic device 40 after adapter ring 40 enters outer join device 10, can oppress retaining ring 20 and elastic device 30 simultaneously in the axial space 11 of coupling piece 10 outside jointly.Preferred embodiment is that the internal surface 14 of outer joiner 10 first ends 12 has a female thread portion 15; Adapter ring 20 is used for spinning; This adapter ring 20 has first end 21 and second end 22, and by first and

second end

21,22 through holes that defined 24, and have the helical thread portion 23 of a corresponding above-mentioned female thread portion 15 that forms at first end, 21 outer surfaces set up adapter ring first end 21 can be in axial space 11 swing offset.Basically, through hole 24 communicates with axial space 11; This run A, B can enter in the axial space 11 of outconnector 10 via through hole 24.In the embodiment that the utility model adopted, this retaining ring 30 and elastic device 40 are to be limited between the leading edge of outer join device first end 12, the second end 13 formed interior shoulders 16 and adapter ring first end 21, when making adapter ring 20 first ends 21 enter outer join device 10 fully, retaining ring 30 is can't deviate from first end 12 extraneous with elastic device 40; But allowed the radial displacement (being detailed later) of making appropriateness.

In principle, retaining ring 30 provides a tooth ends 31, is used to embed duct wall; Retaining ring 30 also includes front-end face 32 adjacent to tooth ends 31, an ear end face, and connects a plane of inclination 34 of front/

rear end

32,33 in addition.Typical enforcement be, retaining ring 30 has a breach 35 in fact, and this is based on the factor of considering the conduit out of roughness, and the elastic range when setting up retaining ring 30 and embedding run A, B.

On the other hand, elastic device 40 provides complete measures of preventing water; Comprise mid-ring 42 between built-in ring 41, retaining ring 30 and the adapter ring 20 between device shoulder 16 and the retaining ring 30, and a О shape that is provided with between adapter ring second end 22 and the outer join device first end 12 encircle 43; In fact, a circular groove 25 is formed on adapter ring second end 22, to encircle 43 pedestal as О shape is set.Preferred embodiment is that it is L shaped that the section of built-in ring 41 becomes substantially, and constituted the space that allows to hold most of retaining ring 30; Wherein, the front-end face 32 of retaining ring 30 is that the cutting face 411 with built-in ring 41 joins, and as shown in Fig. 2.

Please refer to Fig. 2,3, preferable consideration is an outer join device 10, also includes a fin 17 and is formed at the second end 13 ends, and this fin 17 has been set up run A, B and stretched into the datum length that coupling joins coupling; And along adapter ring second end 20 circumferential surfaces, then provide the groove 26 of the direction that parallels to the axis, these grooves 26 provide the operator, can be easy to and the very fast the simplest hand tools of use (common wrench), drive adapter ring first end 21 and enter combination in the outer join device 10.

See also Fig. 2,3, preferred embodiment is, when adapter ring 20 begins to rotate,, will make the direction motion of adapter ring 20 outside coupling piece the second ends 13 because of cooperating of the helical thread portion 23 of the female thread portion 15 of outer join device first end 12 and adapter ring first end 21; Simultaneously, adapter ring first end 21 will force the radial displacement of lower pressing tooth end 31 appropriateness to embed duct wall A, B along retaining ring 30 plane of inclination 34 gradually.With regard on the other hand, this adapter ring first end 21 preferablies should possess a lead angle 211 is arranged, and produce with the situation of avoiding interference; And these means show that we need not to use special tool(s)s such as press, groove rolling machine, can make between coupling or joint and the run, set up certain combination, also can the phenomenon that get loose gradually not take place as prior art because of the vibrations that conveyance fluid or material caused.

What must be discussed is, in the process that adapter ring 20 rotations are advanced, the design of interior, the

mid-ring

41,42 that the utility model elastic device 40 is included will form compressive state because of the extruding of adapter ring 20, when entering outer join device 10 fully along with adapter ring first end 21, О shape ring 43 also will be compressed entirely.This in one, mid-ring 41,42 is compressed has possessed high coefficient of friction, forces it to cooperate closely with each assembly, not only can stop the relative rotation between outer join device 10 and the adapter ring 20, has also constituted higher sealing effect.

Moreover, consider that based on preferable design adapter ring has a fixed hole 27 to be arranged on second end 22, passes through to allow a positioning element 50; Feasible measure is, to should fixed hole 27, on outer join device first end 12, be provided with plural notch 18, these notches 18 are to distribute along the circumferential surface of first end 12, communicate with fixed hole 27 basically, and the end after making positioning element 50 by fixed hole 27 enters in the notch 18.This measure is in order to certain prevention outer join device 10 and adapter ring 20, because of vibrations produce counterrotating situation.

Therefore, the utility model provides an effective structure improved conduit coupling connection coupling, and when adapter ring 20 screwed in outer join device 10, compressing retaining ring 30 embedded duct wall; The result, need not use special instrument to get final product certain preferable bonding apparatus of setting up, and under the principle that the sealing effect is provided, the vibrations that this bonding apparatus is caused because of conduit conveyance fluid or material, and as the situation that prior art gets loose gradually, be difficult to very much take place; Obviously have the space kenel of innovation and represented sizable progress.

Claims

1, a kind of conduit coupling of improvement connection coupling is in order to connect into coaxial line and two adjacent catheter tip parts; At least include an outer join device that possesses axial space, an adapter ring, one allowed retaining ring in the coupling piece outside and elastic device etc. constitute; It is characterized in that:

The outer join device have a first end and a second end, with one by first and second end formed in shoulder etc. form; In fact, this adapter ring comprises first end and second end, and first end is allowed along the axial space intrinsic displacement of outer join device first end, embeds duct wall in order to force retaining ring.

2, the conduit coupling of improvement joins coupling according to claim 1; The first end that it is characterized in that this outer join device is provided with female thread portion, and corresponding to this female thread portion, makes adapter ring first end form a helical thread portion.

3, the conduit coupling of improvement joins coupling according to claim 1; It is characterized in that this retaining ring possess a tooth ends is arranged, the front-end face adjacent to tooth ends, an ear end face, and a plane of inclination that connects the front and rear end constitutes; Make adapter ring first end embed duct wall along this lower pressing tooth end, plane of inclination.

4, the conduit coupling of improvement joins coupling according to claim 1; It is characterized in that this elastic device comprised mid-ring between built-in ring, retaining ring and the adapter ring between device shoulder and the retaining ring, and a О shape that is located between adapter ring and the outer join device first end encircle; In fact, a circular groove is formed on adapter ring second end, with as the pedestal that this О shape ring is set.

5, the conduit coupling of improvement joins coupling according to claim 1; It is characterized in that a fixed hole is located on adapter ring second end, pass through to allow a positioning element.

6, the conduit coupling of improvement joins coupling according to claim 1; It is characterized in that this outer join device has a fin to be formed at the second end end.

7, as the conduit coupling connection coupling of improvement as described in claim 1 or 5; It is characterized in that this outer join device is provided with plural notch in the circumferential surface of first end, communicate, can enter these notches to allow this positioning element end with the fixed hole of adapter ring.

8, as the conduit coupling connection coupling of improvement as described in claim 1 or 4; It is characterized in that it is L shaped that the section of the built-in ring of elastic device becomes substantially, and constituted the space that allows to hold most of retaining ring.

9, as the conduit coupling connection coupling of improvement as described in claim 1 or 5; It is characterized in that the circumferential surface of adapter ring second end is provided with the groove of the direction that parallels to the axis.

10, as the conduit coupling connection coupling of improvement as described in claim 1 or 5; It is characterized in that first end of adapter ring possesses a lead angle is arranged.

11, the conduit coupling of improvement joins coupling according to claim 1; It is characterized in that into symmetrical kenel.