CN105782618A - Telescopic pipe capable of being wedged - Google Patents
Telescopic pipe capable of being wedged Download PDFInfo
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- CN105782618A CN105782618A CN201511033002.1A CN201511033002A CN105782618A CN 105782618 A CN105782618 A CN 105782618A CN 201511033002 A CN201511033002 A CN 201511033002A CN 105782618 A CN105782618 A CN 105782618A
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- Prior art keywords
- wedging
- trocar sheath
- interpolation pipe
- steel ball
- cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/50—Couplings of the quick-acting type adjustable; allowing movement of the parts joined
- F16L37/505—Couplings of the quick-acting type adjustable; allowing movement of the parts joined allowing substantial longitudinal adjustment or movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/22—Couplings of the quick-acting type in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts
- F16L37/23—Couplings of the quick-acting type in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts by means of balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a telescopic pipe capable of being wedged. After the proper length is reached through adjustment, an inner insertion pipe is rotated, a steel ball located in a wedge-shaped cavity of a wedge-shaped gas enters a narrower gap in a rolling mode, and the gap is formed by an inner hole of an outer sleeve and the eccentric conical concave annular surface in a wedge shape both in the axial direction and in the circumferential direction, so that the outer sleeve and the inner insertion pipe are locked together firmly, and a pipe section with the required length is formed.
Description
Technical field
Patent of the present invention relates to a kind of pipeline connection technology, is particularly suitable for installing medium and small pipeline and uses.
Background technology
The medium extensive use pipelines such as tap water, gas, industrial liquid, gas and material are carried.Pipeline to be connected and sealed by pipeline section and pipe fitting and could realize the effect of conveying, owing to conventional pipeline section is all cut lengths, so in the installation of pipeline, tube length will being cut and could be attached with pipe fitting and equipment by pipe.Cutting of pipe not only increases the operation that pipe cuts, but also increase the operation (such as mantle fiber, welded flange or pipe end molding making etc.) again making joint, so not only time-consuming, but also increase pipeline occur quality accident risk (because of the quality of field pipes joint processing be certain to poorer than factory's finished productization produces joint quality).Therefore, exploitation can have great actuality meaning to improving efficiency of construction with guarantee pipeline quality by wedging telescoping tube
Summary of the invention
The purpose of patent of the present invention be to provide one can wedging telescoping tube, by regulate telescoping tube length, can directly be connected with pipe fitting and equipment, solution erecting bed cut pipeline section and making joint trouble.
Can being mainly made up of trocar sheath 1, interpolation pipe 2, O-ring seal 3 and 4, steel ball 5, the eccentric indent annulus 6 of cone, wide arc gap 7, small-gap suture 8, cavity 9 and reinforcement set 10 by wedging telescoping tube (see Fig. 1) of patent of the present invention.Interpolation pipe 2 is rotatable with trocar sheath 1 and the movement that slides axially, and interpolation pipe 2 is provided with O-ring seal 3,4；An eccentric indent annulus 6 of cone it is provided with between O-ring seal 3,4, the endoporus of trocar sheath 1 and the outer surface of cone bias indent annulus 6 form a hoop and the cavity 9 in axial all wedge shaped gap, the axial minimum clearance at maximal clearance 7 place of cavity 9 hoop is bigger than steel ball 5 diameter, the axial maximal clearance at minimum clearance 8 place of cavity 9 hoop is less than steel ball 5 diameter, and steel ball 5 is in cavity.During application, trocar sheath 1 and interpolation pipe 2 are drawn and moves on to required length dimension, utilize external force moment of torsion by interpolation pipe 2 switching, making trocar sheath 1 and interpolation pipe 2 rotate against, steel ball 5 rubs under drive at interpolation pipe 2 and rotating against of trocar sheath 1 at that time, it is thus achieved that overturn friction torque with hoop, thus hoop rolls in tapered hoop wedge gap, along with strengthening the moment of torsion rotating interpolation pipe, steel ball 5 enters in narrower hoop wedge gap, trocar sheath 1 and the mutual wedging of interpolation pipe 2 is linked together.When pipeline bears bigger pulling capacity, when there is drawing displacement to axial in trocar sheath 1 and interpolation pipe 2, the steel ball 5 being clamped again can under the drive that the mutually axially displacement of trocar sheath 1 and interpolation pipe 2 rubs, obtain the friction torque that axial turning rolls, thus axially rolling in narrower axial wedge gap, stoping the displacement of trocar sheath 1 and interpolation pipe 2, it stops axial shifting force to increase along with pipe pulling capacity and increase.When the taper seat oblique angle of the eccentric indent annulus 6 of cone is at about 6 degree, there is the effect of axial self-locking.This kind can wedging telescoping tube in adjustable length excursion can locating wedge stressed joint, become the pipeline section of an anti-pulling.When trocar sheath and interpolation pipe adopt relatively thin tube wall, only reinforcement set 10, the rigidity of reinforcement steel ball 5 wedging place pipe need to be inserted in the position of the corresponding trocar sheath cylindrical of cavity, thus reaching to improve the effect of pipe wedging power.Due to this can the adjustable length of wedging telescoping tube very big, as 1.5 meters can may bring up 1.4 meters by wedging telescoping tube, say, that apply 1 1.5 meters can connect 1.5 meters of connection nodes to 2.9 meters of spacing by wedging telescoping tube.Therefore, by select all size length pipe can directly or docking connection any length node, thus eliminating two installation procedures that conventional mounting pipeline to carry out cutting with tube end maching.This kind can the port on wedging telescoping tube both sides can be the joints such as screw thread, flange, groove, bulge loop and socket.Therefore, the pipe shaft of currently used various connected mode pipes only need to apply this can wedging telescoping tube just can eliminate conventional pipelines install need to carry out pipeline section cut and interface make two operations, application the art of this patent will cause Pipe installing change property improvement meaning.
Accompanying drawing explanation
Fig. 1, the interpolation pipe tool eccentric indent annulus of cone can wedging telescoping tube schematic diagram
1, trocar sheath；2, interpolation pipe；3,4, O-ring seal；5, steel ball；6, the eccentric indent annulus of cone；9, cavity；10, reinforcement set
Fig. 2, Fig. 1 transverse cross-sectional view
1, trocar sheath；2, interpolation pipe；5, steel ball；7, maximal clearance；8, minimum clearance；9, cavity；10, reinforcement set
Fig. 3, interpolation pipe tool involute indent annulus can wedging telescoping tube schematic diagram
11, interpolation pipe；12, trocar sheath；13,14, O-ring seal；15, cavity；16, steel ball；24, involute indent annulus
Fig. 4, Fig. 3 transverse cross-sectional view
11, interpolation pipe；12, trocar sheath；15, cavity；16, steel ball；23, wide arc gap；24, involute indent annulus
Fig. 5, trocar sheath tool involute extension annulus can wedging telescoping tube schematic diagram
17, interpolation pipe；18, trocar sheath；19,20, O-ring seal；21, cavity；22, steel ball；25, involute extension annulus；27, reinforcement set
Fig. 6, Fig. 5 transverse cross-sectional view
17, interpolation pipe；18, trocar sheath；21, cavity；22, steel ball；25, involute extension annulus；26, wide arc gap；27, reinforcement set
Detailed description of the invention
1, the eccentric indent annulus of interpolation pipe tool cone can wedging telescoping tube (see Fig. 1,2)
Length according to required connection node, choose appropriate length specification can wedging telescoping tube, by this pipe horizontal positioned, rotate interpolation pipe 2, wide arc gap 7 be in the lower section of plumb line；At this moment, steel ball 5, under the effect of deadweight, is also at wide arc gap 7 place, owing to the minimum clearance of the axial wedge gap at wide arc gap 7 place is all big than the diameter of steel ball 5, so required length can be pulled out or be pushed into by relative with interpolation pipe 2 for trocar sheath 1；Then, by external force moment of torsion, interpolation pipe 2 is rotated relative to trocar sheath 1, at this moment the steel ball 5 at wide arc gap 7 place it is under the effect of deadweight, in the annulus wedge gap in the narrow gap of hoop gradual change that the endoporus of the eccentric indent ring textures of cone and trocar sheath 1 that fall into interpolation pipe 2 is formed, the friction torque that upset rolls is obtained under friction at interpolation pipe 2 and rotating against of trocar sheath 1, along with increasing the moment of torsion rotating interpolation pipe 2, steel ball 5 can enter in the wedge gap that cavity 9 hoop is narrower in the way of hoop upset rolling, interpolation pipe 2 and trocar sheath 1 are mutually located wedging link together, it is linked to be the pipeline section of Len req, then it is attached installing by the joint at pipe two ends and pipe fitting or equipment again.When trocar sheath 1 and interpolation pipe 2 bear the very big pulling capacity axial drawing displacement of appearance, the steel ball 5 of wedged trocar sheath 1 and interpolation pipe 2 obtains the friction torque of axial turning under interpolation pipe 2 with trocar sheath 1 mutually axially displacement, enter in narrower axial wedge gap in the way of axial turning rolling, form bigger wedging power, when the angle on circular cone inclined-plane is at about 6 degree, this pipe has the auto-lock function of anti-pulling, the rigidity of the mutual wedging power of trocar sheath 1 and interpolation pipe 2 and interpolation pipe and trocar sheath, the quantity of the moment of torsion rotating interpolation pipe 2 and the steel ball 5 clamped by wedge gap in cavity is directly proportional, it is inversely proportional to the wedged gap of cavity.When trocar sheath 1 applies relatively thin light-wall pipe, before reinforcing rotates interpolation pipe 2, reinforcement can be overlapped on 10 cylindricals being enclosed within trocar sheath 1 and elapse to the corresponding position of cavity 9, the trocar sheath to steel ball 5 wedging place is made to have the thickness of two-layer pipe, increase steel ball 5 and make the rigidity of use pipe, reach to increase the effect of wedging power.
2, interpolation pipe tool involute indent annulus can wedging telescoping tube (see Fig. 3,4)
Length according to required connection node, choose appropriate length specification can wedging telescoping tube, by pipe horizontal positioned, rotate interpolation pipe 11, wide arc gap 23 be in the lower section of plumb line；nullAt this moment steel ball 16 is under the effect of deadweight，It is also at wide arc gap 23 place，Owing to the minimum clearance of the axial wedge gap at wide arc gap 23 place is all big than the diameter of steel ball 16，So required length can be pulled out or be pushed into by relative with interpolation pipe 11 for trocar sheath 12，Or by while counterclockwise rotating interpolation pipe 11，Axially pull out or be pushed into required length by relative with interpolation pipe 11 for trocar sheath 12，Then pass through external force moment of torsion to be rotated relative to trocar sheath 12 clockwise by interpolation pipe 11，At this moment the steel ball 16 at wide arc gap 23 place of cavity 15 it is under deadweight，The hoop of the involute indent ring textures and the formation of trocar sheath 12 endoporus that fall into interpolation pipe 11 is in tapered annulus wedge gap，The friction torque that upset rolls is obtained under friction at interpolation pipe 11 and rotating against of trocar sheath 12，Along with increasing the moment of torsion rotating interpolation pipe 11，Steel ball 16 can in the way of hoop upset rolling，Enter in the wedge gap that cavity 15 hoop is narrower，Interpolation pipe 11 is linked together with trocar sheath 12 firm wedging mutually，It is linked to be the pipeline section of Len req；Then it is attached installing by the joint at pipe two ends and pipe fitting or equipment again.This kind of structure due to hoop involute lift angle can less than 2 degree, so under identical action torque, bigger wedging power can be obtained.
3, trocar sheath tool involute extension annulus can wedging telescoping tube (see Fig. 5,6)
Length according to required connection node, choose appropriate length specification can wedging telescoping tube, by pipe horizontal positioned, rotary sleeve pipe 18, wide arc gap 26 is in the lower section of plumb line；nullAt this moment steel ball 22 is under the effect of deadweight，It is also at wide arc gap 26 place，Owing to the minimum clearance of the axial wedge gap at wide arc gap 26 place is all big than the diameter of steel ball 16，So trocar sheath 18 and interpolation pipe 17 can be pulled out mutually or are pushed into required length，Or by while being rotated clockwise trocar sheath 18，Axially pull out or be pushed into required length by relative with interpolation pipe 17 for trocar sheath 18，Then pass through external force moment of torsion counterclockwise to be rotated relative to interpolation pipe 17 by trocar sheath 18，At this moment the steel ball 22 at wide arc gap 26 place of cavity 21 it is under deadweight，Fall in the wedge gap tapered in hoop of involute extension annulus endoporus formation of interpolation pipe 17 surface and trocar sheath 18，The friction torque that upset rolls is obtained under friction at trocar sheath 18 and rotating against of interpolation pipe 17，Along with the moment of torsion increasing rotary sleeve pipe 18，Steel ball 22 can in the way of hoop upset rolling，Enter in the narrower wedge gap of hoop of cavity 21，Interpolation pipe 17 is linked together with trocar sheath 18 firm wedging mutually，It is linked to be the pipeline section of Len req；Then it is attached installing by the joint at pipe two ends and pipe fitting or equipment again.When interpolation pipe 17 applies the pipe of relatively thin-walled, before starting rotary sleeve pipe 18 and carrying out wedging pipeline section, reinforcement overlapped in 27 reeve interpolation pipe 17 endoporus and elapse to the corresponding position of cavity 21, increasing steel ball 22 and interpolation pipe 17 is made the rigidity of use pipe.This switching trocar sheath realizes the connected mode of wedging, also the involute of trocar sheath can be extended annulus and make the version of cone eccentric extension annulus into, the conical eccentric extension annulus endoporus making trocar sheath forms hoop and the cavity in axial all wedge shaped gap with interpolation pipe surface, trocar sheath and the firm wedging of interpolation pipe can be linked together by switching trocar sheath by steel ball, its linkage function and interpolation pipe tool cone bias indent annulus can wedging telescoping tube identical.The wedging telescoping tube that its detailed description of the invention has involute extension annulus with trocar sheath is identical.
This can after wedging telescoping tube brute force screws, owing to the wedging of steel ball can make the cylindrical of trocar sheath or interpolation pipe or interior pipe produce radial dimension change, the tube wall deformation of projection can be formed at the outer round surface of trocar sheath of wedging place of steel ball or the bore area of interpolation pipe under the wedging of steel ball, make steel ball compacted under bigger tubing stress intensity.
This can wedging telescoping tube wedging connect after, when need to dismantle, only need to the relative switching trocar sheath of the contrary direction of rotation of wedging pipe at that time and interpolation pipe, steel pipe is made to obtain the friction torque that upset rolls, roll back in the gap bigger than steel ball size in the way of hoop upset rolling, just can extract relative with trocar sheath for interpolation pipe.
This trocar sheath endoporus of wedging telescoping tube can be equipped with interpolation pipe, and can mutually rotate and move axially；Trocar sheath seals by arranging rubber seal with interpolation pipe, a wedge shaped gap of hoop or hoop and the cavity in axial all wedge shaped gap is had between trocar sheath endoporus and interpolation pipe surface, steel ball is in cavity, by rotating interpolation pipe or trocar sheath, steel ball hoop is made to be rolled in the wedge gap that hoop is narrower, or again axially in axially narrower wedge gap after entering hoop wedge gap, trocar sheath and the firm wedging of interpolation pipe are linked together, becomes the pipeline section of Len req；When trocar sheath or interpolation pipe apply the pipe of relatively thin-walled, the cylindrical of trocar sheath or reinforcement set can be placed with on the interpolation pipe endoporus position corresponding with cavity；This can wedging telescoping tube, there is the structure of the interpolation pipe eccentric indent annulus of tool cone, its interpolation pipe cylindrical is equipped with two rubber seal and cone bias indent annulus, the outer surface of the endoporus of trocar sheath and cone bias indent annulus forms the cavity in a hoop and all wedge shaped gap of axial gap, the axial minimum clearance at cavity hoop maximal clearance place is bigger than steel ball size, and the axial maximal clearance at cavity hoop minimum clearance place is less than steel ball size；Steel ball is in cavity, and when rotating interpolation pipe, steel ball can enter in the narrower wedge gap of hoop of cavity by hoop, by trocar sheath and the mutual wedging of interpolation pipe；When bearing bigger external force again and making trocar sheath and interpolation pipe drawing displacement to axial, steel ball can axially in narrower axial wedge gap, stop the axial displacement of trocar sheath and interpolation pipe, order to regulate the trocar sheath of length and be linked to be the pipeline section that more firm wedging is connected with interpolation pipe；This can wedging telescoping tube, there is the structure of interpolation pipe tool involute indent annulus, its interpolation pipe surface is equipped with two rubber seal and involute indent annulus, involute indent ring textures forms the cavity in a wedge shaped gap of hoop with trocar sheath endoporus, the maximum gap-ratio steel ball size of cavity is big, and the minimum place gap-ratio steel ball size of cavity is little；Steel ball is in cavity, and when rotating interpolation pipe, steel ball can enter in the wedge gap that hoop is narrower by hoop, by trocar sheath and the mutual wedging of interpolation pipe, becomes the pipeline section that the wedging being connected firmly connects；This can wedging telescoping tube, there is the structure of trocar sheath tool involute extension annulus, its trocar sheath endoporus is equipped with two rubber seal and involute extension annulus, involute extension annulus endoporus and interpolation pipe surface form the cavity in a wedge shaped gap of hoop, the maximum gap-ratio steel ball size of cavity is big, and the minimum place gap-ratio steel ball size of cavity is little；Steel ball is in cavity, and when rotary sleeve pipe, steel ball can enter in the wedge gap that hoop is narrower by hoop, by trocar sheath and the mutual wedging of interpolation pipe, becomes the pipeline section that the wedging being connected firmly connects；This can wedging telescoping tube, there is the structure of trocar sheath tool cone eccentric extension annulus, its trocar sheath endoporus is equipped with two rubber seal and cone bias extension annulus, interpolation pipe surface forms the cavity in a hoop and all wedge shaped gap of axial gap with cone bias extension annulus endoporus, the axial minimum clearance at cavity hoop maximal clearance place is bigger than steel ball size, the axial maximal clearance at the minimum clearance place of cavity is less than steel ball size, and steel ball is in cavity；When rotary sleeve pipe, steel pipe can enter in the wedge gap that hoop is narrower by hoop, by trocar sheath and the mutual wedging of interpolation pipe；When affording bigger external force again, when making trocar sheath and interpolation pipe drawing displacement to axial, steel ball can axially in the axially narrower wedge gap of cavity, stop the pipeline section that the axial displacement of trocar sheath and interpolation pipe, order regulate length connect more firmly wedging link together；This can wedging telescoping tube, its steel ball is initially with in its deadweight wedging radial clearance, then rotate against at interpolation pipe and trocar sheath and obtain under friction in the radial clearance that upset friction torque is narrower with hoop upset roll mode entrance, trocar sheath and the firm wedging of interpolation pipe are linked together；This can the trocar sheath of wedging telescoping tube and the port of interpolation pipe can be the joint of screw thread, flange, groove, bulge loop, extrapolation or interior socket etc.；This can be provided with different lengths specification, the length difference of adjacent two specification pipes by wedging telescoping tube, it is possible to be the shorter adjustable greatest length of specification pipe；This can be provided with the sealing ring of 1 or more than 1 by wedging telescoping tube, it is possible to place the steel ball of or many；This trocar sheath of wedging telescoping tube and the mutual wedging power of interpolation pipe and trocar sheath and the rigidity of interpolation pipe, the moment of torsion of rotary tube and the quantity of steel ball clamped by wedge gap in cavity can be directly proportional, be inversely proportional to the wedge gap angle of cavity；This can after interpolation pipe and the trocar sheath powerful wedging mutually of wedging telescoping tube, the radial dimension of the cylindrical of trocar sheath or the endoporus of interpolation pipe can change, and its outer bushing surface or interpolation pipe bore area can form the cast deformation of projection；This can wedging telescoping tube, when with the relative switching trocar sheath of contrary direction of rotation of wedging pipe and interpolation pipe, steel ball is rolled back in the gap bigger than steel ball size in the way of hoop upset rolling, just can extract relative with trocar sheath for interpolation pipe.
Claims (12)
1. one kind can wedging telescoping tube, it is characterised in that: trocar sheath endoporus is equipped with interpolation pipe, and can mutually rotate and move axially；Trocar sheath seals by arranging rubber seal with interpolation pipe, a wedge shaped gap of hoop or hoop and the cavity in axial all wedge shaped gap is had between trocar sheath endoporus and interpolation pipe surface, steel ball is in cavity, by rotating interpolation pipe or trocar sheath, steel ball hoop is made to be rolled in the wedge gap that hoop is narrower, or again axially in axially narrower wedge gap after entering hoop wedge gap, trocar sheath and the firm wedging of interpolation pipe are linked together, becomes the pipeline section of Len req；When trocar sheath or interpolation pipe apply the pipe of relatively thin-walled, the cylindrical of trocar sheath or reinforcement set can be placed with on the interpolation pipe endoporus position corresponding with cavity.
2. one according to claim 1 can wedging telescoping tube, there is the structure of the interpolation pipe eccentric indent annulus of tool cone, it is characterized in that: interpolation pipe cylindrical is equipped with two rubber seal and cone bias indent annulus, the outer surface of the endoporus of trocar sheath and cone bias indent annulus forms the cavity in a hoop and all wedge shaped gap of axial gap, the axial minimum clearance at cavity hoop maximal clearance place is bigger than steel ball size, and the axial maximal clearance at cavity hoop minimum clearance place is less than steel ball size；Steel ball is in cavity, and when rotating interpolation pipe, steel ball can enter in the narrower wedge gap of hoop of cavity by hoop, by trocar sheath and the mutual wedging of interpolation pipe；When bearing bigger external force again and making trocar sheath and interpolation pipe drawing displacement to axial, steel ball can axially in narrower axial wedge gap, stop the axial displacement of trocar sheath and interpolation pipe, order to regulate the trocar sheath of length and be linked to be the pipeline section that more firm wedging is connected with interpolation pipe.
3. one according to claim 1 can wedging telescoping tube, there is the structure of interpolation pipe tool involute indent annulus, it is characterized in that: interpolation pipe surface is equipped with two rubber seal and involute indent annulus, involute indent ring textures forms the cavity in a wedge shaped gap of hoop with trocar sheath endoporus, the maximum gap-ratio steel ball size of cavity is big, and the minimum place gap-ratio steel ball size of cavity is little；Steel ball is in cavity, and when rotating interpolation pipe, steel ball can enter in the wedge gap that hoop is narrower by hoop, by trocar sheath and the mutual wedging of interpolation pipe, becomes the pipeline section that the wedging being connected firmly connects.
4. one according to claim 1 can wedging telescoping tube, there is the structure of trocar sheath tool involute extension annulus, it is characterized in that: trocar sheath endoporus is equipped with two rubber seal and involute extension annulus, involute extension annulus endoporus and interpolation pipe surface form the cavity in a wedge shaped gap of hoop, the maximum gap-ratio steel ball size of cavity is big, and the minimum place gap-ratio steel ball size of cavity is little；Steel ball is in cavity, and when rotary sleeve pipe, steel ball can enter in the wedge gap that hoop is narrower by hoop, by trocar sheath and the mutual wedging of interpolation pipe, becomes the pipeline section that the wedging being connected firmly connects.
5. one according to claim 1 can wedging telescoping tube, there is the structure of trocar sheath tool cone eccentric extension annulus, it is characterized in that: trocar sheath endoporus is equipped with two rubber seal and cone bias extension annulus, interpolation pipe surface forms the cavity in a hoop and all wedge shaped gap of axial gap with cone bias extension annulus endoporus, the axial minimum clearance at cavity hoop maximal clearance place is bigger than steel ball size, the axial maximal clearance at the minimum clearance place of cavity is less than steel ball size, and steel ball is in cavity；When rotary sleeve pipe, steel pipe can enter in the wedge gap that hoop is narrower by hoop, by trocar sheath and the mutual wedging of interpolation pipe；When affording bigger external force again, when making trocar sheath and interpolation pipe drawing displacement to axial, steel ball can axially in the axially narrower wedge gap of cavity, stop the pipeline section that the axial displacement of trocar sheath and interpolation pipe, order regulate length connect more firmly wedging link together.
6. one according to claim 1 can wedging telescoping tube, it is characterized in that: steel ball is initially with in its deadweight wedging radial clearance, then rotate against at interpolation pipe and trocar sheath and obtain under friction in the radial clearance that upset friction torque is narrower with hoop upset roll mode entrance, trocar sheath and the firm wedging of interpolation pipe are linked together.
7. one according to claim 1 can wedging telescoping tube, it is characterised in that: can the trocar sheath of wedging telescoping tube and the port of interpolation pipe can be the joint of screw thread, flange, groove, bulge loop, extrapolation or interior socket etc..
8. one according to claim 1 can wedging telescoping tube, it is characterised in that: can be provided with different lengths specification, the length difference of adjacent two specification pipes by wedging telescoping tube, it is possible to be the shorter adjustable greatest length of specification pipe.
9. one according to claim 1 can wedging telescoping tube, it is characterised in that: can be provided with the sealing ring of 1 or more than 1 by wedging telescoping tube, it is possible to place the steel ball of or many.
10. one according to claim 1 can wedging telescoping tube, it is characterized in that: the trocar sheath of wedging telescoping tube and the mutual wedging power of interpolation pipe and trocar sheath and the rigidity of interpolation pipe, the moment of torsion of rotary tube and the quantity of steel ball clamped by wedge gap in cavity can be directly proportional, be inversely proportional to the wedge gap angle of cavity.
11. one according to claim 1 can wedging telescoping tube, it is characterized in that: when after interpolation pipe and trocar sheath mutually powerful wedging, the radial dimension of the cylindrical of trocar sheath or the endoporus of interpolation pipe can change, and its outer bushing surface or interpolation pipe bore area can form the cast deformation of projection.
12. one according to claim 1 can wedging telescoping tube, it is characterized in that: when with the relative switching trocar sheath of contrary direction of rotation of wedging pipe and interpolation pipe, steel ball is rolled back in the gap bigger than steel ball size in the way of hoop upset rolling, just can extract relative with trocar sheath for interpolation pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033002.1A CN105782618B (en) | 2015-12-30 | 2015-12-30 | One kind can wedging telescoping tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033002.1A CN105782618B (en) | 2015-12-30 | 2015-12-30 | One kind can wedging telescoping tube |
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| Publication Number | Publication Date |
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| CN105782618A true CN105782618A (en) | 2016-07-20 |
| CN105782618B CN105782618B (en) | 2019-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118595727A (en) * | 2024-08-08 | 2024-09-06 | 赣州顺天科技股份有限公司 | Copper-clad plate welding tool |
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| GB650153A (en) * | 1948-09-16 | 1951-02-14 | Westland Aircraft Ltd | Improvements in or relating to readily detachable couplings |
| FR2372372A1 (en) * | 1976-11-27 | 1978-06-23 | Walther Carl Kurt Gmbh | QUICK COUPLING |
| FR2998344A1 (en) * | 2012-11-22 | 2014-05-23 | Collin | LOCKING SYSTEM OF A CONNECTION OF MALE AND FEMALE FITTING ELEMENTS |
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| CN118595727A (en) * | 2024-08-08 | 2024-09-06 | 赣州顺天科技股份有限公司 | Copper-clad plate welding tool |
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| CN105782618B (en) | 2019-04-12 |
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