CN206582430U - A kind of bite type sealing structure - Google Patents
A kind of bite type sealing structure Download PDFInfo
- Publication number
- CN206582430U CN206582430U CN201720015899.3U CN201720015899U CN206582430U CN 206582430 U CN206582430 U CN 206582430U CN 201720015899 U CN201720015899 U CN 201720015899U CN 206582430 U CN206582430 U CN 206582430U
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- CN
- China
- Prior art keywords
- fittings body
- cutting ferrule
- stopper slot
- sealing structure
- type sealing
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Abstract
The utility model is related to pipe fitting and is tightly connected technical field, more particularly to a kind of bite type sealing structure, including fittings body, locking nut and cutting ferrule, locking nut and cutting ferrule are socketed on tube-like piece, locking nut is threadedly attached on fittings body, and cutting ferrule is installed between fittings body and locking nut；One end of fittings body is provided with the stopper slot coaxial with the external screw thread of fittings body, and stopper slot is engaged with tube-like piece, and the one end of fittings body provided with stopper slot is provided with the first taper surface, and cutting ferrule is provided with the second taper surface coordinated with the first taper surface close to one end of fittings body；The one end of cutting ferrule away from fittings body is connected on locking nut.The bite type sealing structure that the utility model is provided ensure that the axiality of tube-like piece and fittings body, it is to avoid in assembling, tube-like piece with fittings body relative tilt sliding occurs, it is ensured that cutting ferrule can radially hold tube-like piece tightly when assembling, it is ensured that the sealing reliability of structure.
Description
Technical field
The utility model is related to pipe fitting and is tightly connected technical field, more particularly to a kind of bite type sealing structure.
Background technology
The termination of oil pipe and water pipe often uses the sealing structure of bite type in the prior art.Common collar joint passes through
Tighten nut to tighten up cutting ferrule in the conical surface of pipe joint, form effective while cutting ferrule radial contraction bites outer wall of steel pipe
Hard contact sealing.But the dimensional fits precision of cutting ferrule, oil pipe, pipe joint is high, during assembling steel pipe and fittings body assembling axiality without
Method ensures, is easily caused steel pipe and deflection occurs, so as to cause cutting ferrule effectively can not radially hold outer wall of steel pipe tightly and be taken off from oil pipe front end
Go out, it is impossible to form effective sealing.
Utility model content
(1) technical problem to be solved
The technical problems to be solved in the utility model is low, the sealing that solves bite type sealing structure axiality in the prior art
The problem of effect is poor.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of bite type sealing structure, for connecting tubulose
Part, including fittings body, locking nut and cutting ferrule, the locking nut and the cutting ferrule are socketed on the tube-like piece, described
Locking nut is threadedly attached on the fittings body, the cutting ferrule be installed on the fittings body and the locking nut it
Between；One end of the fittings body is provided with the stopper slot coaxial with the external screw thread of the fittings body, the stopper slot and the tubulose
Part is engaged, and the one end of the fittings body provided with stopper slot is provided with the first taper surface, and the cutting ferrule is close to the fittings body
One end is provided with the second taper surface coordinated with first taper surface；The one end of the cutting ferrule away from the fittings body is connected to lock
On tight nut.
According to the utility model, the stopper slot is opened on the end face of the fittings body, and the stopper slot is away from institute
Ring wall surface and taper wall that the side wall at fittings body center includes being connected are stated, the taper wall is provided close to described spacing
First taper surface is formed at channel opening.
According to the utility model, the groove depth of the stopper slot is 10~12mm.
According to the utility model, the fittings body include spacing section and with the spacing section of oared segrne pii being connected, the limit
Position groove is in described spacing section, and the conical inboard wall of the oared segrne pii forms first taper surface, first taper surface
It is connected with side wall of the stopper slot away from the fittings body center.
According to the utility model, the groove depth of the stopper slot is 4~5mm.
According to the utility model, the cutting ferrule is included outside cutting edge section, matrix and the endpiece being sequentially connected, the cutting edge section
Wall is set to cone, forms second taper surface, and the internal face of the cutting edge section is provided with transition groove, the endpiece
Outside wall surface is provided with the tapered mouth of the taper being engaged with the endpiece in conical on the locking nut.
According to the utility model, the section of the transition groove is subtriangular, and the subtriangular drift angle
For circular arc.
According to the utility model, the fittings body, cutting ferrule and locking nut are made of stainless steel.
(3) beneficial effect
Above-mentioned technical proposal of the present utility model has the following advantages that compared with prior art：The utility model embodiment is carried
The bite type sealing structure of confession is provided with the stopper slot coaxial with the external screw thread of fittings body in one end of fittings body, it is ensured that tubulose
The axiality of part and fittings body, it is to avoid tube-like piece relative tilt sliding occurs with fittings body in assembling, it is ensured that cutting ferrule is assembled
When can radially hold tube-like piece tightly, it is ensured that the sealing reliability of structure.
Brief description of the drawings
Fig. 1 is the structural representation for the bite type sealing structure that the utility model embodiment one is provided；
Fig. 2 is the structural representation for the cutting ferrule that the utility model embodiment one is provided；
Fig. 3 is the structural representation for the fittings body that the utility model embodiment one is provided；
Fig. 4 is the structural representation for the bite type sealing structure that the utility model embodiment two is provided；
Fig. 5 is the structural representation for the cutting ferrule that the utility model embodiment two is provided.
In figure：1：Fittings body；11：Stopper slot；12：First taper surface；13：Ring wall surface；2：Cutting ferrule；21：Cutting edge section；
22：Matrix；23：Endpiece；24：Second taper surface；25：Transition groove；3：Locking nut；4：Tube-like piece.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the present utility model, rather than whole embodiments.Based on the reality in the utility model
Apply example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, all
Belong to the scope of the utility model protection.
Embodiment one
As shown in Figure 1 to Figure 3, a kind of bite type sealing structure that the utility model embodiment is provided, for connecting tubulose
Part 4, including fittings body 1, locking nut 3 and cutting ferrule 2, locking nut 3 and cutting ferrule 2 are socketed on tube-like piece 4, locking nut 3
It is threadedly attached on fittings body 1, cutting ferrule 2 is installed between fittings body 1 and locking nut 3；One end of fittings body 1 be provided with
The coaxial stopper slot 11 of the external screw thread of fittings body 1, stopper slot 11 is engaged with tube-like piece 4, and fittings body 1 is provided with stopper slot 11
One end is provided with the first taper surface 12, and cutting ferrule 2 is provided with the second taper surface coordinated with the first taper surface 12 close to one end of fittings body 1
24；The one end of cutting ferrule 2 away from fittings body 1 is connected on locking nut 3.Preferably, the present embodiment center tap body 1, cutting ferrule 2 and
Locking nut 3 is made of stainless steel, the corrosion resistance of the bite type sealing structure is improved, so as to improve service life.Peace
During dresses, cutting ferrule 2 and locking nut 3 are enclosed on tube-like piece 4, one end of tube-like piece 4 is inserted into stopper slot 11 first, it is ensured that
The assembling axiality of tube-like piece 4 and fittings body 1, makes the second taper surface 24 of cutting ferrule 2 connect with the first taper surface 12 of fittings body 1
Touch, further rotate locking nut 3, the two ends of cutting ferrule 2 is adjacent to respectively at locking nut 3 and fittings body 1 so that 2 armfuls of cutting ferrule
The outer wall of tight tube-like piece 4.
The bite type sealing structure that the utility model embodiment is provided is provided with and fittings body 1 in one end of fittings body 1
The coaxial stopper slot 11 of external screw thread, it is ensured that the axiality of tube-like piece 4 and fittings body 1, it is to avoid tube-like piece 4 is with connecing in assembling
There is relative tilt sliding in head body 1, it is ensured that cutting ferrule 2 can radially hold tube-like piece 4 tightly when assembling, it is ensured that the sealed reliable of structure
Property.
Further, stopper slot 11 is opened on the end face of fittings body 1 in the present embodiment, and stopper slot 11 is away from fittings body
The side wall at 1 center includes the ring wall surface 13 and taper wall being connected, and taper wall is provided close to shape at the opening of stopper slot 11
Into the first taper surface 12.Preferably, the groove depth of stopper slot 11 is 10~12mm in the present embodiment.Stopper slot 11 is close to fittings body 1
The side at center is big with the bonded area of tube-like piece 4, and cutting ferrule 2 plays inward pressure when compressing tube-like piece 4 to tube-like piece 4, and
The internal face of tube-like piece 4 by stopper slot 11 close to the center of fittings body 1 side side wall support, can effectively alleviate tube-like piece 4 by
The pressure arrived, can avoid the cutting ferrule 2 in stubborn tension from causing expendable damage to tube-like piece 4, improve tube-like piece 4
The limit of allowable stress, is conducive to the sealing of the bite type sealing structure.
Further, as shown in Fig. 2 cutting ferrule 2 includes cutting edge section 21, matrix 22 and the endpiece being sequentially connected in the present embodiment
23, the outside wall surface of cutting edge section 21 is set to cone, forms the second taper surface 24, and the internal face of cutting edge section 21 is provided with transition groove
25, the outside wall surface of endpiece 23 is provided with the tapered mouth of the taper being engaged with endpiece 23 in conical on locking nut 3.Preferably,
The section of transition groove 25 is that subtriangular and subtriangular drift angle is circular arc in the present embodiment.Cutting edge section 21
The transition groove 25 that internal face is set can become the radial contraction under the extruding of the first taper surface 12 of fittings body 1 of cutting edge section 21
It is embedded in after shape and locks tube-like piece 4, on the one hand can be greatly increased the sealing and switching performance of fittings body 1 and tube-like piece 4, make
The bite type sealing structure can bear higher pressure and impact resistance, on the other hand, can be kept away without cutting ferrule after increase by 2
Exempt from existing single deck tape-recorder and cover 2 pipe joints the problem of sealing property declines caused by temperature change, product structure is simple, it is easy to install
Dismounting, in addition, the intensity requirement and the temperature difference for cutting ferrule 2 adapt to require relatively low, can substantially reduce product cost.
Embodiment two
Description is not repeated with the identical content of embodiment one in the present embodiment two, and the disclosure of embodiment one falls within reality
The disclosure of example one is applied, the present embodiment two and the difference of embodiment one are：As shown in Figure 4 and Figure 5, the present embodiment center tap
Body 1 include spacing section and with spacing section of oared segrne pii be connected, stopper slot 11 be located at spacing section in, in the taper of oared segrne pii
Wall the first taper surface 12 of formation, the first taper surface 12 is connected with side wall of the stopper slot 11 away from the center of fittings body 1.Preferably,
The groove depth of stopper slot 11 is 4~5mm in the present embodiment.If groove depth sets larger, then in the case of the width of stopper slot 11 is less
Difficulty of processing can be greatly increased, and the subsection setup of 11 and first taper surface of stopper slot 12 is conducive to the processing of stopper slot 11, reduction
Difficulty of processing, so as to reduce the cost of the bite type sealing structure.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (8)
1. a kind of bite type sealing structure, for connecting tubular piece, including fittings body, locking nut and cutting ferrule, the locking
Nut and the cutting ferrule are socketed on the tube-like piece, and the locking nut is threadedly attached on the fittings body, described
Cutting ferrule is installed between the fittings body and the locking nut；It is characterized in that：
One end of the fittings body is provided with the stopper slot coaxial with the external screw thread of the fittings body, the stopper slot and the tubulose
Part is engaged, and the one end of the fittings body provided with stopper slot is provided with the first taper surface, and the cutting ferrule is close to the fittings body
One end is provided with the second taper surface coordinated with first taper surface；The one end of the cutting ferrule away from the fittings body is connected to lock
On tight nut.
2. bite type sealing structure according to claim 1, it is characterised in that：The stopper slot is opened in the fittings body
End face on, and side wall of the stopper slot away from the fittings body center includes the ring wall surface and taper wall that are connected,
The taper wall is provided close at the spacing channel opening form first taper surface.
3. bite type sealing structure according to claim 2, it is characterised in that：The groove depth of the stopper slot be 10~
12mm。
4. bite type sealing structure according to claim 1, it is characterised in that：The fittings body include spacing section and with
The oared segrne pii of the spacing section of connection, the stopper slot is in described spacing section, the conical inboard wall shape of the oared segrne pii
Into first taper surface, first taper surface is connected with side wall of the stopper slot away from the fittings body center.
5. bite type sealing structure according to claim 4, it is characterised in that：The groove depth of the stopper slot is 4~5mm.
6. bite type sealing structure according to claim 1, it is characterised in that：The cutting ferrule includes the cutting edge being sequentially connected
Section, matrix and endpiece, the outside wall surface of the cutting edge section are set to cone, form second taper surface, the cutting edge section
Internal face is provided with transition groove, and the outside wall surface of the endpiece is provided with and the endpiece phase in conical on the locking nut
The tapered mouth of taper of cooperation.
7. bite type sealing structure according to claim 6, it is characterised in that：The section of the transition groove is approximate three
It is angular, and the subtriangular drift angle is circular arc.
8. bite type sealing structure according to claim 1, it is characterised in that：The fittings body, cutting ferrule and locking screw
It is female to be made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015899.3U CN206582430U (en) | 2017-01-06 | 2017-01-06 | A kind of bite type sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720015899.3U CN206582430U (en) | 2017-01-06 | 2017-01-06 | A kind of bite type sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582430U true CN206582430U (en) | 2017-10-24 |
Family
ID=60110190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720015899.3U Active CN206582430U (en) | 2017-01-06 | 2017-01-06 | A kind of bite type sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582430U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000053A (en) * | 2018-08-01 | 2018-12-14 | 嘉兴新亚汽车零部件有限公司 | A kind of tubing seal cutting ferrule |
| CN112323868A (en) * | 2020-11-03 | 2021-02-05 | 北京顺义建筑企业集团公司 | Novel grouting machine |
| CN114962241A (en) * | 2022-06-09 | 2022-08-30 | 衢州杭氧气体有限公司 | Nitrogen compressor control device and control method thereof |
-
2017
- 2017-01-06 CN CN201720015899.3U patent/CN206582430U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000053A (en) * | 2018-08-01 | 2018-12-14 | 嘉兴新亚汽车零部件有限公司 | A kind of tubing seal cutting ferrule |
| CN112323868A (en) * | 2020-11-03 | 2021-02-05 | 北京顺义建筑企业集团公司 | Novel grouting machine |
| CN114962241A (en) * | 2022-06-09 | 2022-08-30 | 衢州杭氧气体有限公司 | Nitrogen compressor control device and control method thereof |
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