CN207212470U - A kind of flange for being connected automobile exhaust pipe - Google Patents
A kind of flange for being connected automobile exhaust pipe Download PDFInfo
- Publication number
- CN207212470U CN207212470U CN201721059045.1U CN201721059045U CN207212470U CN 207212470 U CN207212470 U CN 207212470U CN 201721059045 U CN201721059045 U CN 201721059045U CN 207212470 U CN207212470 U CN 207212470U
- Authority
- CN
- China
- Prior art keywords
- flange
- blast pipe
- mounting hole
- automobile exhaust
- exhaust pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Exhaust Silencers (AREA)
Abstract
A kind of flange for being connected automobile exhaust pipe, its middle part open up blast pipe mounting hole, and the both sides of blast pipe mounting hole open up flange connecting hole, and blast pipe mounting hole is axially arranged with annular flange.Hardware dies carry out punching press to blast pipe mounting hole, and the edge of blast pipe mounting hole turns up；For above-mentioned annular flange after flange is handled, drift carries out reverse punching press to the blast pipe installation bore edges to have turned up again, makes the edge finishing turned up, the wall thickness of annular flange is increased, in this way, the intensity of annular flange is increased, the stability of blast pipe installation is improved.
Description
Technical field
The utility model belongs to auto parts machinery, and in particular to the flange of blast pipe.
Background technology
Some sections of blast pipes are fixed by flange to be connected, and forms complete blast pipe.Two methods of adjacent two sections of blast pipes
Orchid connection, two flange faces are contacted and offseted together.Mounting hole is opened up on the flange of either segment blast pipe, is coordinated in mounting hole
There is a threaded fastener, two flanges on adjacent two sections of blast pipes are connected by threaded fastener, and threaded fastener is by two methods
Orchid is pressed together.Due to jolting in vehicle traveling process, threaded fastener easily loosens, and causes each section of blast pipe linking not
Firmly, the stability of whole blast pipe is poor.
Utility model content
The technical problem that the utility model solves：How the stability of blast pipe linking is improved.
In order to solve the above technical problems, the utility model provides following technical scheme：A kind of method for being connected automobile exhaust pipe
Orchid, its middle part open up blast pipe mounting hole, and the both sides of blast pipe mounting hole open up flange connecting hole, set in the flange connecting hole
There is locating ring, the madial wall of locating ring is provided with the elastic card engaged with the tooth paddy of screw thread on threaded fastener, in other words, fixed
The madial wall of position ring is provided with the elastic card being caught on threaded fastener between two neighboring thread.
The threaded fastener is plugged in flange connecting hole, and elastic card is stuck in the tooth paddy of screw thread on threaded fastener
In, to limit threaded fastener rotation, reach the effect for preventing that threaded fastener from loosening.Wherein, the tooth paddy of screw thread, refers to adjacent
Space between two threads, the space are similar to mountain valley, are analogous to the tooth paddy of gear.
Blast pipe mounting hole is axially arranged with annular flange, and annular flange is after flange is handled, then stamped shaping.Its
In, the processing of annular flange flange, it is that hardware dies carry out punching press to blast pipe mounting hole, the edge of blast pipe mounting hole turns up.
Annular flange is after flange is handled, then stamped shaping, is that drift is carried out reversely to the blast pipe installation bore edges to have turned up again
Punching press, make the edge finishing turned up, the wall thickness of annular flange is increased, in short and stout shape, in this way, the intensity of annular flange obtains
Increase, improve the stability of blast pipe installation.
The flange connecting hole opens up counterbore, and the locating ring is embedded in the counterbore.On the madial wall of the counterbore
Groove is opened up, the lateral wall of locating ring is provided with the convex portion coordinated with the groove.As a preferred embodiment, on the madial wall of the counterbore
Spline is opened up, the lateral wall of locating ring is provided with the spline coordinated with the spline.
The quantity of elastic card is four, and circumference of four elastic cards along locating ring is to being uniformly distributed.
Elastic card perpendicular to locating ring center line, in other words, elastic card perpendicular to flange connecting hole hole heart line,
The thickness of elastic card be equal to threaded fastener on two neighboring thread axial distance, in this way, elastic card be clamped on it is adjacent
Between two threads, preferably limit threaded fastener and loosen.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of schematic diagram for the flange for being connected automobile exhaust pipe, wherein, non-inlay location ring in flange connecting hole；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is a kind of schematic diagram for the flange for being connected automobile exhaust pipe, wherein, locating ring is inlaid with flange connecting hole；
Fig. 4 is enlarged drawing at B in Fig. 3.
Symbol description in figure：
10th, blast pipe mounting hole；
20th, flange connecting hole；21st, counterbore；210th, spline；
30th, locating ring；31st, elastic card；32nd, spline；
40th, annular flange.
Embodiment
Referring to figs. 1 to Fig. 4, a kind of flange for being connected automobile exhaust pipe, its middle part opens up blast pipe mounting hole 10, blast pipe
The both sides of mounting hole open up flange connecting hole 20.
Locating ring 30 is provided with the flange connecting hole, the madial wall of locating ring is provided with and screw thread on threaded fastener
The elastic card 31 of tooth paddy engaging.The quantity of elastic card 31 is four, and circumference of four elastic cards along locating ring 30 is to equal
Even distribution.
The flange connecting hole 20 opens up counterbore 21, and the locating ring 30 is embedded in the counterbore.The counterbore 21
Spline 210 is opened up on madial wall, the lateral wall of locating ring 30 is provided with the spline 32 coordinated with the spline.
Elastic card 31 is perpendicular to the center line of locating ring 30, and the thickness of elastic card is equal on threaded fastener adjacent two
The axial distance of individual thread.The screw bolt and nut that clamp screw is preferably used cooperatively, bolt are stretched into flange connecting hole 20, bullet
Property card 31 occur elastic deformation and make way for bolt；Bolt rotates, and elastic card slides between thread；Screw bolt and nut is tight
Gu after, elastic card is fastened between thread, limits bolt rotation.
Blast pipe mounting hole 10 is axially arranged with annular flange 40, and annular flange is after flange is handled, then stamped shaping.
Specifically, hardware dies carry out punching press to blast pipe mounting hole 10, and the edge of blast pipe mounting hole turns up.Above-mentioned annular flange 40
After flange is handled, drift carries out reverse punching press to the edge of blast pipe mounting hole 10 to have turned up again, makes the edge finishing turned up,
The wall thickness of annular flange is increased, and in short and stout shape, in this way, the intensity of annular flange is increased, improves blast pipe installation
Stability.
Above content is only better embodiment of the present utility model, for one of ordinary skill in the art, according to this
The thought of utility model, there will be changes, this specification content should not be understood in specific embodiments and applications
For to limitation of the present utility model.
Claims (7)
1. a kind of flange for being connected automobile exhaust pipe, its middle part opens up blast pipe mounting hole (10), the both sides of blast pipe mounting hole
Open up flange connecting hole (20), it is characterised in that：Locating ring (30) is provided with the flange connecting hole, on the madial wall of locating ring
The elastic card (31) engaged provided with the tooth paddy with screw thread on threaded fastener.
A kind of 2. flange for being connected automobile exhaust pipe as claimed in claim 1, it is characterised in that：Blast pipe mounting hole (10)
It is axially arranged with annular flange (40), annular flange is after flange is handled, then stamped shaping.
A kind of 3. flange for being connected automobile exhaust pipe as claimed in claim 1, it is characterised in that：The flange connecting hole (20)
Counterbore (21) is opened up, the locating ring (30) is embedded in the counterbore.
A kind of 4. flange for being connected automobile exhaust pipe as claimed in claim 3, it is characterised in that：The inner side of the counterbore (21)
Groove is opened up on wall, the lateral wall of locating ring (30) is provided with the convex portion coordinated with the groove.
A kind of 5. flange for being connected automobile exhaust pipe as claimed in claim 3, it is characterised in that：The inner side of the counterbore (21)
Spline (210) is opened up on wall, the lateral wall of locating ring (30) is provided with the spline (32) coordinated with the spline.
A kind of 6. flange for being connected automobile exhaust pipe as claimed in claim 1, it is characterised in that：The quantity of elastic card (31)
For four, circumference of four elastic cards along locating ring (30) is to being uniformly distributed.
A kind of 7. flange for being connected automobile exhaust pipe as claimed in claim 1, it is characterised in that：Elastic card (31) perpendicular to
The center line of locating ring (30), the thickness of elastic card are equal to the axial distance of two neighboring thread on threaded fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059045.1U CN207212470U (en) | 2017-08-23 | 2017-08-23 | A kind of flange for being connected automobile exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059045.1U CN207212470U (en) | 2017-08-23 | 2017-08-23 | A kind of flange for being connected automobile exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212470U true CN207212470U (en) | 2018-04-10 |
Family
ID=61816226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721059045.1U Expired - Fee Related CN207212470U (en) | 2017-08-23 | 2017-08-23 | A kind of flange for being connected automobile exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212470U (en) |
-
2017
- 2017-08-23 CN CN201721059045.1U patent/CN207212470U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20180823 |