CN2330847Y - Small bore piping joint - Google Patents
Small bore piping joint Download PDFInfo
- Publication number
- CN2330847Y CN2330847Y CN 98202490 CN98202490U CN2330847Y CN 2330847 Y CN2330847 Y CN 2330847Y CN 98202490 CN98202490 CN 98202490 CN 98202490 U CN98202490 U CN 98202490U CN 2330847 Y CN2330847 Y CN 2330847Y
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- CN
- China
- Prior art keywords
- cylindrical
- shoulder
- endoporus
- sleeve pipe
- cooperates
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- Expired - Fee Related
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Abstract
The utility model relates to a small bore piping joint, which has three types of a straight joint type, a bend joint type and a three-way joint type. The utility model is composed of a clamping nut, a shoulder screw sleeve, a sleeve pipe, a brake sleeve pipe, a sealing ring, a brake screw nail or a pin, a bend body and a three-way body. The utility model has the advantages of good tightness and convenient installation and repair; the utility model can effectively solve the problems of loss, overflow, dripping and leakage of the existing piping connecting technique; the utility model can replace an existing flange joint and a screw joint; the utility model can be used for piping connection for an industry field, a traffic field, and particularly a civil field. The utility model has good production and use values.
Description
The utility model provides the pipe coupling of a kind of small aperture, and it is widely used in industrial production, traffic, and especially the pipeline in the sphere of life connects, and is a kind of New-type pipe joint that replaces existing small aperture flanged joint and inipple.
The connecting means of existing pipe coupling, widely used have two kinds, and a kind of is to link to each other with the internal thread of pipe coupling behind the sealing material that twines raw meal belt and so on the outside thread of pipe end.This connecting means needs at the pipe end threading, and installation, maintenance is cumbersome, and leakage phenomenon easily takes place in the joint.Another kind is respectively to be inserted in a flange at two pipe ends, respectively be inserted in a packing ring again, and packing ring freezed on the pipe end cylindrical, then between two packing rings, put seal ring, with many bolts, nut by the attachment hole on the flange, progressively two packing rings are driven two pipelines and clamp seal ring, reach the purpose that is tightly connected.Bother when this connecting means, installation, maintenance, the joint sealing life-span is short, and run, drip, leak easily take place, and worse is that consumptive material is many, and installation, maintenance is very uneconomical.
The purpose of this utility model provides a kind of design proposal of New-type pipe joint, it neither needs to connect in the pipe end machining screw, do not need again at the pipe end packing ring that freezes, clamp connection with flange, but a kind of simple in structure, mounting or dismounting, easy to maintenance, sealing for tubing joints, resistance to pressure are good, make easyly, can solve existing pipeline connection technology effectively and easily produce the problem of run, drip, leak, the new design of long service life.
Small aperture of the present utility model pipe coupling has types such as straight joint, elbow connection, tee union, wherein:
The pipe coupling of the utility model straight joint type is made up of a turnbuckle, convex shoulder thread bush, 1 sleeve pipe, 2 brake casings, 2 seal rings and clamping screw or pin, it is characterized in that the turnbuckle endoporus has shoulder, there is internal thread to cooperate on the circle in the shoulder with convex shoulder thread bush outside thread, endoporus cooperates with the pipeline cylindrical, convex shoulder thread bush one end cylindrical has screw thread, endoporus has shoulder, circle cooperates with brake casing and sleeve pipe cylindrical in the shoulder, endoporus cooperates with the pipeline cylindrical, jagged on the circle side end face in the shoulder, close with the collocation of stretching on the sleeve pipe cylindrical; Sleeve pipe is straight shape pipe fitting, and cylindrical cooperates with convex shoulder thread bush endoporus, and endoporus cooperates with the pipeline cylindrical; Brake casing is straight shape pipe fitting, and cylindrical cooperates with convex shoulder thread bush endoporus, and endoporus cooperates with the pipeline cylindrical; The cylindrical of one seal ring cooperates with the endoporus of convex shoulder thread bush, and endoporus cooperates with the pipeline cylindrical, and the both ends of the surface of seal ring cooperate with sleeve pipe and brake casing end face; Clamping screw or pin cooperate formation with screw or unthreaded hole on the brake casing tube wall.
In the above-mentioned straight joint of the present utility model, its turnbuckle cylindrical one end has the outer-hexagonal body of several muscle or protrusion; Convex shoulder thread bush cylindrical one end has screw thread, and the other end has the outer-hexagonal body of several muscle or protrusion, and endoporus has shoulder, and the circular bead surface that circular bead surface has tapering outwards to protrude inside and outside can being also can be the plane circular bead surface, and round mouth has chamfering in the shoulder; The pipe fitting one end inside and outside circle of its sleeve pipe has or the zero draft chamfering, and the other end cylindrical has to stretch to be taken; The pipe fitting one end inside and outside circle of its brake casing has or the zero draft chamfering, and the other end cylindrical has tapering, and screw or unthreaded hole (slotted hole or circular hole) are arranged on the tube wall; Its seal ring has ring and two kinds of basic shapes of the rectangular filler of parallelogram, and according to sleeve pipe and brake casing end surface shape, the both ends of the surface of ring and the rectangular filler of parallelogram can have or not have V-shaped groove, can have an end face not have V-shaped groove by an end face.External diameter after the rectangular filler of parallelogram two ends are harmonious equates that with convex shoulder thread bush internal diameter internal diameter equates that with outer diameter tube seal ring is made with the material with certain elasticity or plasticity.This type of material also should have acidproof, alkaline-resisting, heatproof, oil resistant, performance such as corrosion-resistant respectively in different media.Its clamping screw one end cylindrical has screw thread, the jagged groove of end face, and the other end has shoulder.Pin is a cylindrical body, or an end has the cylindrical body of shoulder.Clamping screw or pin are made with the corrosion resistant high-strength material.
When the pipe coupling of the utility model straight joint type is used, processing depression or hole on the certain position of ends of tubes, after depression or hole process, earlier respectively turnbuckle is inserted on the pipe end cylindrical, the convex shoulder thread bush is inserted on another pipe end cylindrical, on the pipeline cylindrical of cover turnbuckle, be inserted in a sleeve pipe again, be taken up in order of priority again and respectively be inserted in a seal ring or rectangular filler, a brake casing, be screwed into clamping screw or with sticking some viscosity preservative substances of pin from brake casing tube wall screw this moment, be embedded in the depression or hole that two pipelines process from brake casing tube wall unthreaded hole, it is one that two braking sleeve pipes are cooperated with two pipelines respectively.Again the convex shoulder thread bush is inserted in one by one a seal ring, brake casing and another brake casing, a seal ring, a sleeve pipe, and stretching on the sleeve pipe cylindrical taken enter breach on the convex shoulder thread bush end face, at last, with turnbuckle precession convex shoulder thread bush, two seal rings are compressed simultaneously, thereby reach the purpose that connects sealing.At this moment,, then be on axial between two pipelines and the two braking sleeve pipes and compress Telescoping, but two pipelines are hugged by two seal rings all the time and sealing if the unthreaded holes on the two braking sleeve pipe tube walls are slotted holes.Thus, can solve existing pipeline connection technology effectively and the hard nut to crack of run, drip, leak occur because of seasonal temperature variation pipeline expands with heat and contract with cold.
The pipe coupling of elbow connection type of the present utility model has straight tube shape and two kinds of structural types of casting shape.Its straight tube shape elbow connection is because curved head body wherein is the straight tube of a turning, so straight tube shape elbow connection comes down to the combination by two turning straight joints.It is identical with straight joint that all designs of part wherein, combination and use thereof connect situation.Casting shape elbow connection is made up of a curved head body, 2 turnbuckles, 2 sleeve pipes, 2 brake casings, 2 seal rings and clamping screw or pin, it is characterized in that curved head body two end part cylindrical has outside thread and turnbuckle screw-internal thread fit, endoporus has shoulder, the interior round mouth of shoulder that chamfering is arranged, circle cooperates with brake casing and sleeve pipe cylindrical in the shoulder, the curved head body end is jagged, and all the other all designs of part are identical with the corresponding part of straight joint.
When the utility model elbow connection uses, processing depression or hole on two pipelines, one limiting-members, after depression or hole process, on two pipeline cylindricals, successively respectively be inserted in a turnbuckle earlier respectively, a sleeve pipe, a seal ring, a brake casing, again clamping screw is screwed into or with sticking some viscosity preservative substances of pin from brake casing tube wall screw, be embedded in the depression or hole that two pipelines process from brake casing tube wall unthreaded hole, two braking sleeve pipes are cooperated with two pipelines be one, to install brake casing again, two pipelines of seal ring and sleeve pipe stretch in the interior circle of shoulder at curved head body two ends, and make stretching on the sleeve pipe cylindrical take the breach that enters on the curved head body end face, at last with turnbuckle precession curved head body end cylindrical, promote sleeve pipe and seal ring and brake casing, when brake casing one end and curved head body shoulder mutually after touch, promptly begin two seal rings are compressed, thereby reach the purpose that connects sealing.Joint working state of living in is identical with straight joint during about connection.
The pipe coupling of tee union type of the present utility model has straight tube shape and two kinds of structural types of casting shape.Straight tube shape tee union wherein, because three-way body wherein is the combination of three straight tubes, so straight tube shape tee union comes down to the combination of three straight joints on three directions, all design of part combinations wherein and use connection situation are all identical with straight joint.For casting shape tee union, it is characterized in that design of part, combination and the connection use condition thereof of three ends is all identical with above casting shape elbow connection.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structure of the pipe joint of straight joint type of the present utility model
Fig. 4 is the structural representation of each parts of pipe joint.
Among Fig. 1,1a, 1b: pipeline; 2: turnbuckle; 3: the convex shoulder thread bush; 4: sleeve pipe; 5: brake casing; 6: seal ring; 7: clamping screw or pin.
Among Fig. 4, A is a turnbuckle, and B is the convex shoulder thread bush, and C is a brake casing, and D is a sleeve pipe, E
1, E
2, E
3, F
1And F
2Be respectively the seal ring of different shape, G
1, G
2And G
3Be respectively clamping screw and pin.
Embodiment 1: the use of straight joint.
When straight joint (Fig. 1) uses, at first at two pipeline 1a, processing depression or hole on the certain position of cylindrical, 1b end, the number in depression or hole is according to pipe diameter and working pressure size, generally be no less than 1, after depression or hole process, on the cylindrical of pipeline 1a end, successively be inserted in a turnbuckle earlier, a sleeve pipe, a seal ring, a brake casing, on the cylindrical of pipeline 1b end, successively be inserted in a convex shoulder thread bush 3 again, a seal ring 6, a brake casing 5, be screwed into clamping screw 7 or with sticking some viscosity preservative substances of pin 7 from brake casing tube wall screw this moment, be embedded to two pipeline 1a from brake casing tube wall unthreaded hole, in the depression or hole that 1b processed, make two pipeline 1a, it is one that brake casing 5 on the 1b cooperates with two pipelines, then convex shoulder thread bush 3 is inserted in one by one seal ring 6 and brake casing 5 on two pipelines, cause stretching on sleeve pipe 4 cylindricals to be taken and enter breach on the convex shoulder thread bush end face, allocate in the convex shoulder screw thread trepanning, at last turnbuckle 2 is screwed in convex shoulder thread bush cylindrical, promote sleeve pipe 4, seal ring 6, make two braking sleeve pipes, 5 ends mutually after touch, seal ring on the pipeline cylindrical is compressed, reach the purpose that connects sealing.
Fig. 2 is the structural representation of casting shape elbow connection of the present utility model.
Among Fig. 1,1a, 1b: pipeline; 2: turnbuckle; 31: curved head body; 4: sleeve pipe; 5: brake casing; 6: seal ring; 7: clamping screw or pin.
Embodiment 2: the use of elbow connection.
When elbow connection uses, same earlier at two pipeline 1a, processing depression or hole on the certain position of cylindrical, 1b end, the number in depression or hole is according to pipe diameter and working pressure size, generally be no less than 1, after depression or hole process, respectively at two pipeline 1a, be inserted in a turnbuckle on the cylindrical of 1b end one by one, a sleeve pipe 4, a seal ring 6, a brake casing 5, be screwed into clamping screw 7 or with sticking some viscosity preservative substances of pin 7 from brake casing tube wall screw this moment, be embedded to two pipeline 1a from brake casing tube wall unthreaded hole, in the depression or hole that 1b processed, make two pipeline 1a, it is one that brake casing 5 on the 1b cooperates with two pipelines, to install brake casing this moment, two pipelines of seal ring and sleeve pipe stretch into respectively in the interior circle of shoulder at curved head body 31 two ends, and make stretching on sleeve pipe 4 cylindricals take the breach that enters on curved head body 31 end faces, at last with turnbuckle 2 precession curved head bodies 31 end cylindricals, promote sleeve pipe 4, seal ring 6 makes brake casing 5 and curved head body endoporus shoulder mutually after touch, and seal ring is compressed.Reach the purpose that connects sealing.
Fig. 3 is the structural representation of casting shape tee union of the present utility model.
Among the figure, 1a, 1b, 1c: pipeline; 2: turnbuckle; 32: three-way body; 4: sleeve pipe; 5: brake casing; 6: seal ring; 7: clamping screw or pin.
Embodiment 3: the use of tee union.
When tee union used, because the structure and the above curved head body of three-way body 32 3 ends are identical, and the used part when being connected with pipeline was also identical.So to the use of tee union, it operates overall process, working principle is fully identical with above elbow connection.
Claims (10)
1. pipe coupling that the small aperture pipe coupling is the straight joint form, form by turnbuckle, convex shoulder thread bush, sleeve pipe, brake casing, seal ring and clamping screw or pin, it is characterized in that the turnbuckle endoporus has shoulder, there is internal thread to cooperate on the circle in the shoulder with convex shoulder thread bush outside thread, endoporus cooperates with the pipeline cylindrical, convex shoulder thread bush one end cylindrical has screw thread, endoporus has shoulder, circle cooperates with brake casing and sleeve pipe cylindrical in the shoulder, endoporus cooperates with the pipeline cylindrical, jagged on the circle side end face in the shoulder, close with the collocation of stretching on the sleeve pipe cylindrical; Sleeve pipe is straight shape pipe fitting, and cylindrical cooperates with convex shoulder thread bush endoporus, and endoporus cooperates with the pipeline cylindrical; Brake casing is straight shape pipe fitting, and cylindrical cooperates with convex shoulder thread bush endoporus, and endoporus cooperates with the pipeline cylindrical; The cylindrical of one seal ring cooperates with the endoporus of convex shoulder thread bush, and endoporus cooperates with the pipeline cylindrical, and the both ends of the surface of seal ring cooperate with sleeve pipe and brake casing end face; Clamping screw or pin cooperate formation with screw or unthreaded hole on the brake casing tube wall.
2. according to claim 1 described small aperture pipe coupling, it is characterized in that turnbuckle cylindrical one end has the outer-hexagonal body of several muscle or protrusion, endoporus has shoulder, on internal thread is arranged.
3. according to claim 1 described small aperture pipe coupling, it is characterized in that convex shoulder thread bush cylindrical one end has screw thread, the other end has the outer-hexagonal body of several muscle or protrusion, endoporus has shoulder, the circular bead surface that circular bead surface has tapering outwards to protrude inside and outside being, or the plane circular bead surface, round mouth has chamfering in the shoulder.
4. according to claim 1 described small aperture pipe coupling, it is characterized in that the pipe fitting one end inside and outside circle of sleeve pipe has or the zero draft chamfering, the other end cylindrical has to stretch to be taken.
5. according to claim 1 described small aperture pipe coupling, it is characterized in that the pipe fitting one end inside and outside circle of brake casing has or the zero draft chamfering, the other end cylindrical has tapering, and screw or unthreaded hole are arranged on the tube wall.
6. according to claim 5 described small aperture pipe coupling, it is characterized in that the unthreaded hole on the tube wall of brake casing is a slotted hole.
7. according to claim 1 described small aperture pipe coupling, it is characterized in that seal ring is two kinds of shapes of the rectangular filler of annular ring and parallelogram, according to sleeve pipe and brake casing end surface shape, the two ends of this annular ring and the rectangular filler of parallelogram have V-shaped groove, no V-shaped groove, an end to have an end not have three kinds of V-shaped grooves.
8. according to claim 1 described small aperture pipe coupling, it is characterized in that clamping screw one end cylindrical has screw thread, the jagged groove of end face, the other end cylindrical has shoulder; Pin is a cylindrical body, or cylindrical one end has the cylindrical body of shoulder.
9. a small aperture pipe coupling is for casting the pipe coupling of shape elbow connection form, it is characterized in that casting shape curved head body two end part cylindrical outside thread and turnbuckle screw-internal thread fit are arranged, endoporus has shoulder, round mouth has chamfering in the shoulder, circle cooperates with brake casing and sleeve pipe cylindrical in the shoulder, the curved head body two end part are jagged, close with the collocation of stretching on the sleeve pipe cylindrical.
10. a small aperture pipe coupling is for casting the pipe coupling of shape tee union form, it is characterized in that casting shape three-way body three end cylindricals outside thread and turnbuckle screw-internal thread fit are arranged, endoporus has shoulder, round mouth has chamfering in the shoulder, circle cooperates with brake casing and sleeve pipe cylindrical in the shoulder, three ends are jagged, close with the collocation of stretching on the sleeve pipe cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202490 CN2330847Y (en) | 1998-03-27 | 1998-03-27 | Small bore piping joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202490 CN2330847Y (en) | 1998-03-27 | 1998-03-27 | Small bore piping joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2330847Y true CN2330847Y (en) | 1999-07-28 |
Family
ID=33959525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98202490 Expired - Fee Related CN2330847Y (en) | 1998-03-27 | 1998-03-27 | Small bore piping joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2330847Y (en) |
-
1998
- 1998-03-27 CN CN 98202490 patent/CN2330847Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |