CN101238315A - Coupling between two bodies comprising an elastically deformable cutting ring with a screw thread forming cutting lips - Google Patents
Coupling between two bodies comprising an elastically deformable cutting ring with a screw thread forming cutting lips Download PDFInfo
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- CN101238315A CN101238315A CNA2005800513463A CN200580051346A CN101238315A CN 101238315 A CN101238315 A CN 101238315A CN A2005800513463 A CNA2005800513463 A CN A2005800513463A CN 200580051346 A CN200580051346 A CN 200580051346A CN 101238315 A CN101238315 A CN 101238315A
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- main body
- ring
- sleeve
- tongue
- connection
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Abstract
The invention relates to a coupling between a first body (5) with a hole, and a cylindrical end zone of a second body (1) by means of tongues (8) which, when said end zone is arranged, scrape over the surface thereof, whereby the backward movement is blocked. The coupling has the feature that the tongues form part of an interrupted ring (3); the tongues are the windings of a helix; the tongues are inclined in the direction of arrangement; the end zone can displace along the helix during arrangement with elastic deformation of the ring; additional pressure forces occur between the tongues and the end zone when a force in opposite direction to the insertion direction is exerted between the ring and the second body; whereby, when the second body rotates relative to the first body, the helix is followed so that an axial movement also occurs and the end zone of the first body can be removed.
Description
Technical field
The present invention relates to the connection (coupling) between the cylindrical end zone of a kind of first main body and second main body, first main body has the hole, for example has the cylindrical hole that has an axis, the cylindrical end zone of second main body will axially be inserted in first main body on the direction of insertion, a plurality of tongues that are connected to the elastically deformable of corresponding main body neutralize in described hole/or the surface of described end regions on extend, the free end edge of described tongue is located substantially on imaginary respectively, on the circumferential surface of the symmetrical main body of basic rotation, this diameter that rotates symmetrical main body is less than the diameter of the external diameter of the end regions of second main body or the symmetrical main body of this rotation diameter greater than described hole, when arranging described end regions, described tongue elasticity modification, and scrape the surface of the described end regions that nuzzles up by the free edge of described tongue, arranging that described end regions through behind the certain distance, has stoped with respect to the motion of direction of insertion on backward directions like this.
Background technique
From EP-A-0 378 035, EP-A-0 212 883, EP-A-0 579 194, EP-A-0 294948, EP-A-0 972 981 and DE-A-197 23 594 known this connections.With respect to above-mentioned prior art, the objective of the invention is to implement two connections between the main body, it can be discharged easily like this, and do not need specific take operation apart and do not need to use the specific instrument that is used for this purpose, simultaneously under described coupled situation, described main body still very firmly and even obviously be connected to each other inseparably.
Summary of the invention
These and other objects realize that by the connection in type described in the preorder it has following feature:
Tongue forms the part of a ring;
Described tongue is the outstanding spiral of reeling;
The principal direction of described tongue has sizable component on arranged direction;
The outstanding end edge of described tongue is limited by the side surface of those tongues, and described side surface surrounds acute angle each other;
Described ring interacts with the sleeve pipe that is connected to first main body, and limits the axial position of described ring;
Described ring has discontinuities, and wherein the end surface of contiguous described discontinuities can relative to each other move in the resiliently deformable process of described ring;
The diameter of described spiral makes that in placement process the end regions of second main body can only move along described spiral, and the end edge of described tongue applies elastic pressure on the end regions of second main body in the process of described ring resilience distortion;
Described ring is locked and can not rotate with respect to first main body by locking device; And
Have device for exerting, this device for exerting is connected to first main body, and is applying under the situation of power between the described ring and second main body on the direction relative with direction of insertion, produces additional pressure between the end regions of the end edge of tongue and second main body;
When rotating with respect to first main body around described axis, second main body advances like this along described spiral, reason is that described tongue cuts in the surface of described end regions, thereby the described end regions that the axial relative movement and second main body also take place can remove from first main body.
Described ring is made of a kind of material and is molded as when the connection between two main bodys of realization, and resiliently deformable takes place in tongue, and wherein the free end edge of tongue moves in the mode of scraping along the respective surfaces of second main body.Described selection by tongue principal direction stops motion backward.But described connection still can discharge, and promptly by apply rotating force between two main bodys, two main bodys are by separated from one another in the mode of spiral by the plastic deformation or the dissection of the tongue of spiralization thus.
Described ring can be made of the material of any appropriate.If the material of tongue has enough big hardness and has suitable shape, with respect to the material on the respective surfaces of second main body, aforesaid operation according to the present invention can effectively realize.Must be infeasible only by moving backward of translation.Motion must only be the spiral motion mode that is rotated simultaneously with translation backward.
In the embodiment who determines, described connection has following special characteristic: described ring is made of the metal of for example steel or aluminium.
In another embodiment, described connection has following special characteristic: described ring is made of the plastics of for example ABS or POM.In this embodiment, described ring for example can be by the injection moulding manufacturing.
According to a further aspect in the invention, the described connection described at least end regions that can have second main body is by plastics, concrete, timber or the special characteristic that constitutes such as the metal of iron, copper or aluminium.It is important selecting the material of tongue, and it can interact in described mode effectively with the material of second main body like this.
Described connection preferably is embodied as device for exerting and comprises rotational symmetric substantially pressing surface, this pressing surface forms the part of sleeve pipe and interacts with described ring and its diameter monotonously change in the axial direction, for example roughly corresponding to the shape of frustoconical, and the direction of insertion opposite direction on described pressure is applied in the process between the described ring and second main body, described pressing surface makes described ring resilience distortion, and the pressure that is applied on second main body by described rib increases like this.
This embodiment has very big advantage, and promptly when the power on the backward directions increased, tongue made effectively and itself braces, and second main body can not be enhanced on backward directions in axially movable operation.
Locking device can be implemented in any suitable manner.Propose among the embodiment, wherein said locking device have at least one projection and with the interactional groove of described projection, on described ring, have in described projection and the groove, and on described sleeve pipe, have in described projection and the groove another.
For the connection according to the present invention always needs be provided at being tightly connected between the main body that will be coupled to each other.
For this purpose, can be provided with according to connection of the present invention and to comprise sleeve and seal ring, described sleeve can be connected on the sleeve pipe by coupling arrangement, and described seal ring is present in the transition region between sleeve pipe and the sleeve and with respect to the described sleeve of second seal of tube.
Back one embodiment can have following characteristics: described coupling arrangement comprise the screw thread that has on the sleeve pipe and with the interactional sleeve of sleeve pipe on the screw thread that has.
In another modification, described connection can have following characteristics: described coupling arrangement comprises engaging device, this engaging device comprise at least one projection and with the interactional groove of this projection, on described sleeve pipe, have in described projection and the groove, and on described sleeve, have in described projection and the groove another.
In a certain embodiments, connection according to the present invention has following special characteristic: described hole has axial stop, so as to define the described end regions of second main body can insert in the described hole the distance of process.Use this embodiment, can realize connecting, wherein axially insert distance and determine by described axial stop by the very simple mode of the cylindrical end zone of second main body being inserted in the cylindrical hole in first main body with certain axial force.This axial stop for example can be embodied as annular shoulder, this annular shoulder of the front edge abutting in the second body end zone and locating.
According to definite aspect of the present invention, described connection has following special characteristic: first main body is pipe or pipe joint.
For example can be used for the connection of two pipes according to connection of the present invention.So for example the splice sleeve of bilateral can be connected to corresponding pipe at two place, end by two corresponding connections according to the present invention.This sleeve pipe may optionally be outer sleeve or inner sleeve.Externally under the situation of sleeve pipe, can realize being connected to the connection between the pipe each other, the free end edge of these pipes arrangement that abuts against each other like this.By using appropriate sealing means, the seal ring that for example is present on the outer sleeve internal surface can further be guaranteed completely the not sealing of saturating medium.
The present invention is not only applicable to connecting tube, and is applicable to that usually connecting a main body that is provided with the hole has the main body of cylindrical end zone, for example solid hopkinson bar at least with another.Can play according to connection of the present invention so outside mailbox is placed into effect on the wooden post for example.Use also can be connected to table leg the desktop that is provided with the hole according to connection of the present invention.The also available connection according to the present invention of tup that is provided with appropriate bore is connected to handle.
Given example is not to be determinate, but can applicablely indicate as just the present invention.Importantly the connection of Jian Liing can not be released by only axial tensile force being applied on two main bodys.The connection that forms by connection according to the present invention only can be released by rotating described main body in the above described manner mutually.
Description of drawings
Now will present invention is described based on accompanying drawing.In the accompanying drawings:
Figure 1A illustrates the decomposition side view according to the connection of first embodiment of the invention;
Figure 1B illustrates the transverse section corresponding to Figure 1A;
Fig. 1 C is the perspective view corresponding to Figure 1A and 1B;
Fig. 2 A illustrates the decomposition side view according to the connection of second embodiment of the invention;
Fig. 2 B illustrates the transverse section corresponding to Fig. 2 A; And
Fig. 2 C is the perspective view corresponding to Fig. 2 A and 2B.
Embodiment
Figure 1A, 1B and 1C illustrate first embodiment according to connection of the present invention with three corresponding each other decomposition views.
Connect 1 and comprise first main body, second main body, the sleeve pipe 2 that are embodied as pipe 1 that is embodied as sleeve 5, cutting ring (cutting ring) 3 and first seal ring 4 with tongue 8.
Before the connection that realizes between pipe 1 and the sleeve 5, first seal ring 4 at first is arranged in the annular groove 17 that is used for this purpose.Then the mode of sleeve pipe 2 with interlock is arranged on the sleeve 5, encapsulates cutting ring 3 simultaneously.Form described being connected by outer joggle edges 14 of annular on the sleeve 5 and the cooperation in the sleeve pipe 2 corresponding between the internal recess 15 of this outer joggle edges.
The diameter of first seal ring 4 makes and can make pipe 1 through this first seal ring by certain elastic deformation, forms effectively sealing thus.
When pipe 1 during via the entering hole 18 and be inserted in the texturing unit 2,3,4,5 of sleeve pipe 2, pipe 1 is by cutting ring 3.This cutting ring has a plurality of tongues 15 that are arranged on the inboard, and tongue 15 is embodied as the spiral 7 (the windings of a helix) of coiling.Shown in concrete among Figure 1B, the principal direction of tongue has the sizable component (component) on arranged direction.The outstanding end edge of tongue 8 is limited by the side surface of these tongues.These side surfaces surround acute angle each other, surround size in this embodiment and be 60 ° angle.Because tongue can pass through them by the pipe 1 of tongue plastic deformation, the contact of swiping simultaneously towards the oblique position on accompanying drawing right side.Cutting ring 3 is forced to expand then.Because give the existence of certain compressibility and expansile discontinuities 9 for ring 3, above-mentioned expansion is possible.Described two character all are important.In the time of eventually in being inserted into cutting ring 3, diameter must be exerted pressure and it is separated greater than the pipe 1 of the imaginary cylinder diameter that is limited by tongue 8 tops these tongues.Cutting ring expands, and the pipe that moves to the accompanying drawing right side can be pushed over cutting ring 3, and wherein the end edge of tongue 8 is scraped the outer surface of the pipe 1 that nuzzles up.Should move and to continue through suitable distance, in any case will surpass first seal ring 4.
Move backward by the described oblique position prevention of tongue.Brace effect under given conditions enough fully the time at this, this braces effect and is strengthened by the interaction between the tapered outer surface 13 of the tapered inner surface 12 of sleeve pipe 2 and cutting ring 3.Expection move the place backward, guarantee that by the power that surface 12 is applied on the cutting ring cutting ring 3 will be tending towards compression, the power that is applied on the pipe by the end edge of tongue 8 increases thus, this is more or less proportional with the tension force that is applied.
What will understand thus is pipe 1 can not be removed from 2,3,4,5 combination by axial moving backward.
The unique possibility method that removes is the relative rotation of pipe with respect to described combination, and tongue 8 is as cutting screw thread on the outer surface of pipe 1 thus, and the outer surface of pipe is by still forfeiture of plasticity infringement thus.The pipe 1 that removes can insert once more, realizes described connection afterwards once more.Importantly first seal ring 4 is positioned at the downstream with respect to cutting ring 3 on direction of insertion.This cutting ring damages pipe 1 outer surface eventually, and outer surface that should infringement can form sealing with nonideal first seal ring under specific circumstances.
Guarantee that cutting ring 3 is not very important with respect to sleeve pipe 2 rotations.For this purpose, internal surface 12 has the rib 10 that extends in the axial direction, and described rib interacts with axially extended groove 11 in the outer surface of ring 3.Prevented to manage 1 rotation in this mode with respect to cutting ring 3.Therefore the rotating force that is used to remove pipe 1 must be applied between described pipe 1 and the sleeve pipe 2.Described both one of can be by required rotation.
In this embodiment, sleeve pipe 2 and sleeve 5 are connected to each other by described being connected, and sleeve pipe 2 is rotatable, and can be provided with for example non-circular shape for this purpose in the outside, so for example can use proper tools with respect to the described sleeve pipe of pipe 1 rotation.In this rotary course, pipe 1 is motion toward the outer side gradually, breaks away from and the engaging of tongue 8 up to it.
Fig. 1 illustrates sleeve 5 and has adopted symmetrical form.This sleeve has second groove, 19, the second seal rings 6 and can be contained in described second groove like this.Because the accompanying drawing ratio, the right-hand side that does not draw at sleeve also can use second cutting ring, second sleeve pipe and second pipe.Therefore this structure comprises two connections according to type of the present invention effectively.
For example cutting ring 3 can be made of the metal such as aluminium or steel, or the plastics that are embodied as by for example POM or ABS constitute.Pipe 1 can be made of PVC or other material, and it can interact in described mode with cutting ring 3.
It should be noted, can also be to one exemplary embodiment modification aspect following according to Fig. 1 C, promptly sleeve 5 can be fixedly connected to the part that pipe maybe can form pipe, so only needs the connection of the present invention according to as shown in Figure 1.But the connection according to Figure 1B is more general, and unprocessed pipe can be interconnected to required size.
Should also be noted that the pipe that will be coupled to each other is not to have identical diameter.Sleeve 5 can be embodied as the pipe that makes sleeve can hold different-diameter on both sides like this.Therefore in this case, to adjust the not deformed diameter of corresponding seal ring 6, corresponding cutting ring and relevant sleeve certainly.
Fig. 2 illustrates a modification, wherein contrasts the embodiment in Fig. 1, and sleeve pipe 20 is connected to sleeve 23 by screw thread 21, has outside thread 25 on the screw thread 21 that inside pipe casing has and sleeve 23 outsides and interacts.
In this embodiment, first seal ring 4 is not contained in as shown in Figure 1 the groove, but is encapsulated between the oral area edge 26 and the annular shoulder 16 as the axial stop of sleeve 23 inside of pipe 1.
In mode shown in Figure 2 cutting ring 22 is placed into sleeve pipe 20 inside, first seal ring 4 is placed between sleeve 23 and the cutting ring 22, and this rear sleeve 20 is screwed on the sleeve 23.
Contrast in cutting ring 3, cutting ring 22 has flange edge 24.
It should be noted in embodiment, do not have to use specified structure except not rotating by friction lock cutting ring 22 according to Fig. 2.The frictional force of guaranteeing in this embodiment to be applied on the cutting ring 22 is enough big, to guarantee when removing pipe by the rotation 1 time unexpected rotation of cutting ring 22 not taking place.In this case, there is no need to use rib and the corresponding grooves of in embodiment, using according to Fig. 1.What should find is, for example in test process, because unexpected rotation can take place in the selection of certain material, can not remove according to the present invention thus or 1 of pipe only being difficult to according to the present invention remove can use with reference to rotational locking device shown in Figure 1.If necessary, also can use gummed to connect.Must guarantee according to the deformability of cutting ring required for the present invention unaffected substantially in this case.
Shown in erect image Figure 1A, 1B and the 1C, Fig. 2 A, 2B and 2C only show the part of two connections between the pipe.What do not draw is to have on the right-hand side of sleeve 23 as the same structure on the left side, i.e. seal ring, cutting ring, sleeve pipe and second pipe.
Be also to be noted that with reference to first example embodiment, also can be the sleeve 23 that existing pipe is provided with outside thread 25 in this embodiment.
Can also use the pipe that has different-diameter and be coupled to each other.
It should be noted that the one exemplary embodiment shown in two has been used the structure of the cutting ring that is provided with internal helicoid.But the invention still further relates to the structure of using cutting ring with external helicoid.
Claims (11)
1. the connection between the cylindrical end zone of the main body and second main body, first main body has the hole, for example has the cylindrical hole that has an axis, the cylindrical end zone of second main body will axially be inserted in first main body on the direction of insertion, a plurality of tongues that are connected to the elastically deformable of corresponding main body neutralize in described hole/or the surface of described end regions on extend, the free end edge of described tongue is located substantially on imaginary respectively, on the circumferential surface of the symmetrical main body of basic rotation, this diameter that rotates symmetrical main body is less than the diameter of the external diameter of the end regions of second main body or the symmetrical main body of this rotation diameter greater than described hole, when arranging described end regions, described tongue elasticity modification, and scrape the surface of the described end regions that nuzzles up by the free edge of described tongue, arranging that described end regions is through behind the certain distance like this, stoped with respect to the motion of direction of insertion on backward directions
It is characterized in that:
Tongue forms the part of a ring;
Described tongue is the outstanding spiral of reeling;
The principal direction of described tongue has sizable component on arranged direction;
The outstanding end edge of described tongue is limited by the side surface of those tongues, and described side surface surrounds acute angle each other;
Described ring interacts with the sleeve pipe that is connected to first main body, and limits the axial position of described ring;
Described ring has discontinuities, and wherein the end surface of contiguous described discontinuities can relative to each other move in the resiliently deformable process of described ring;
The diameter of described spiral makes that in placement process the end regions of second main body can only move along described spiral, and the end edge of described tongue applies elastic pressure on the end regions of second main body in the process of described ring resilience distortion;
Described ring is locked and can not rotate with respect to first main body by locking device; And
Have device for exerting, this device for exerting is connected to first main body, and is applying under the situation of power between the described ring and second main body on the direction relative with direction of insertion, produces additional pressure between the end regions of the end edge of tongue and second main body;
When rotating with respect to first main body around described axis, second main body advances like this along described spiral, reason is that described tongue cuts in the surface of described end regions, thereby the described end regions that the axial relative movement and second main body also take place can remove from first main body.
2. connection as claimed in claim 1, wherein said ring is made of the metal of for example steel or aluminium.
3. connection as claimed in claim 1, wherein said ring is made of the plastics of for example ABS or POM.
4. each described connection in the claim as described above, wherein the described at least end regions of second main body constitutes by plastics, concrete, timber or such as the metal of iron, copper or aluminium.
5. each described connection in the claim as described above, wherein device for exerting comprises rotational symmetric substantially pressing surface, this pressing surface forms the part of sleeve pipe and interacts with described ring and its diameter monotonously change in the axial direction, for example roughly corresponding to the shape of frustoconical, and the direction of insertion opposite direction on described power is applied in the process between the described ring and second main body, described pressing surface makes described ring resilience distortion, and the pressure that is applied on second main body by described rib increases like this.
6. each described connection in the claim as described above, wherein said locking device have at least one projection and with the interactional groove of described projection, on described ring, have in described projection and the groove, and on described sleeve pipe, have in described projection and the groove another.
7. each described connection in the claim as described above, comprise sleeve and seal ring, described sleeve can be connected on the sleeve pipe by coupling arrangement, and described seal ring is present in the transition region between sleeve pipe and the sleeve and with respect to the described sleeve of second seal of tube.
8. connection as claimed in claim 7, wherein said coupling arrangement comprise the screw thread that has on the sleeve pipe and with the interactional sleeve of sleeve pipe on the screw thread that has.
9. connection as claimed in claim 7, wherein said coupling arrangement comprises engaging device, this engaging device comprise at least one projection and with the interactional groove of this projection, on described sleeve pipe, have in described projection and the groove, and on described sleeve, have in described projection and the groove another.
10. each described connection in the claim as described above, wherein said sleeve comprises axial stop, described axial stop limits the final axial position of first main body and/or second main body.
11. each described connection in the claim as described above, wherein first main body is pipe or pipe joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005800513463A CN101238315A (en) | 2005-07-03 | 2005-07-03 | Coupling between two bodies comprising an elastically deformable cutting ring with a screw thread forming cutting lips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005800513463A CN101238315A (en) | 2005-07-03 | 2005-07-03 | Coupling between two bodies comprising an elastically deformable cutting ring with a screw thread forming cutting lips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101238315A true CN101238315A (en) | 2008-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800513463A Pending CN101238315A (en) | 2005-07-03 | 2005-07-03 | Coupling between two bodies comprising an elastically deformable cutting ring with a screw thread forming cutting lips |
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|---|---|
| CN (1) | CN101238315A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392922A (en) * | 2011-11-07 | 2012-03-28 | 汪冬来 | Quick connector |
| CN109201657A (en) * | 2018-09-11 | 2019-01-15 | 杭州清空调技术有限公司 | A kind of air-conditioning duct cleaning machine |
| CN110255879A (en) * | 2019-06-28 | 2019-09-20 | 吴江南玻玻璃有限公司 | Acting pipe locking mechanism and pipeline and roller synchronous rotation device |
| CN114062012A (en) * | 2021-11-12 | 2022-02-18 | 广西柳州中衡工程检测咨询有限公司 | Engineering detection sampling device |
| CN117231398A (en) * | 2023-11-13 | 2023-12-15 | 合肥长兴汽车配件有限公司 | Anti-drop formula air filter is with business turn over gas pipeline |
-
2005
- 2005-07-03 CN CNA2005800513463A patent/CN101238315A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392922A (en) * | 2011-11-07 | 2012-03-28 | 汪冬来 | Quick connector |
| CN109201657A (en) * | 2018-09-11 | 2019-01-15 | 杭州清空调技术有限公司 | A kind of air-conditioning duct cleaning machine |
| CN110255879A (en) * | 2019-06-28 | 2019-09-20 | 吴江南玻玻璃有限公司 | Acting pipe locking mechanism and pipeline and roller synchronous rotation device |
| CN114062012A (en) * | 2021-11-12 | 2022-02-18 | 广西柳州中衡工程检测咨询有限公司 | Engineering detection sampling device |
| CN117231398A (en) * | 2023-11-13 | 2023-12-15 | 合肥长兴汽车配件有限公司 | Anti-drop formula air filter is with business turn over gas pipeline |
| CN117231398B (en) * | 2023-11-13 | 2024-01-12 | 合肥长兴汽车配件有限公司 | Anti-drop formula air filter is with business turn over gas pipeline |
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