CN210153365U - PFA double-wall corrugated pipe connecting device - Google Patents
PFA double-wall corrugated pipe connecting device Download PDFInfo
- Publication number
- CN210153365U CN210153365U CN201920594599.4U CN201920594599U CN210153365U CN 210153365 U CN210153365 U CN 210153365U CN 201920594599 U CN201920594599 U CN 201920594599U CN 210153365 U CN210153365 U CN 210153365U
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- Prior art keywords
- connecting pipe
- double
- connector
- pfa
- thread portion
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 27
- 210000004907 gland Anatomy 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
The utility model discloses a PFA double-walled bellows connecting device, it includes first connecting pipe, the both ends of first connecting pipe are provided with the connector, the connector includes the bottom that links to each other with first connecting pipe and sets up the screw thread portion on the bottom, the bottom inner wall of connector is provided with the second connecting pipe with first connecting pipe intercommunication, be provided with the sealing washer between the screw thread portion of second connecting pipe and connector, leave the clearance that is used for holding double-walled bellows between sealing washer and the second connecting pipe, the screw thread portion of connector is connected with gland nut. The utility model provides a PFA double-walled bellows connecting device, its firm in connection, the leakproofness is good, convenience simple to use.
Description
Technical Field
The utility model relates to a PFA double-walled bellows connecting device.
Background
At present, PFA double-walled bellows adopts clamp fastening connection's mode when connecting, but this kind of connected mode leakproofness is not good, and the clamp also can appear becoming flexible after using for a long time, leads to the bellows to connect not hard up, and the bellows drops from the connecting piece, and the connection effect is not good, adopts clamp fastening connection moreover, complex operation when the construction, and it is inconvenient to use.
Disclosure of Invention
The utility model aims to solve the technical problem that, overcome prior art not enough, provide a PFA double-walled bellows connecting device, its firm in connection, the leakproofness is good, convenience simple to use.
In order to solve the technical problem, the technical scheme of the utility model is that:
the utility model provides a PFA double-walled bellows connecting device, it includes first connecting pipe, the both ends of first connecting pipe are provided with the connector, the connector includes the bottom that links to each other with first connecting pipe and sets up the screw thread portion in the bottom, the bottom inner wall of connector is provided with the second connecting pipe with first connecting pipe intercommunication, be provided with the sealing washer between the screw thread portion of second connecting pipe and connector, leave the clearance that is used for holding double-walled bellows between sealing washer and the second connecting pipe, the screw thread portion of connector is connected with gland nut.
Further, evenly be provided with the sealing strip on the sealing washer, one side that is close to screw thread portion of sealing strip is provided with the lug, one side that is close to the second connecting pipe of sealing strip is provided with the briquetting.
Further, the outer wall of the second connecting pipe is provided with an annular bulge matched with the corrugated groove of the double-wall corrugated pipe.
Further, the outer diameter of the second connecting pipe is the same as that of the double-wall corrugated pipe.
After the technical scheme is adopted, the utility model discloses a gland nut extrusion sealing washer fastens and seals the double-walled bellows of suit on the second connecting pipe, and fastening connection is effectual, has improved the leakproofness, and convenient construction is used.
Drawings
Fig. 1 is a schematic structural view of a PFA double-wall corrugated pipe connection device of the present invention;
fig. 2 is a schematic structural diagram of the connecting head of the present invention;
FIG. 3 is a left side view of FIG. 2;
fig. 4 is a top view of the sealing ring of the present invention;
fig. 5 is a bottom view of the sealing ring of the present invention;
fig. 6 is a side view of the sealing ring of the present invention;
fig. 7 is a schematic structural view of the sealing strip of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1 to 7, a PFA double-wall corrugated pipe connecting device includes a first connecting pipe 1, two ends of the first connecting pipe 1 are provided with connectors 2, each connector 2 includes a bottom 21 connected to the first connecting pipe 1 and a thread portion 22 disposed on the bottom 21, a second connecting pipe 3 communicated with the first connecting pipe 1 is disposed on an inner wall of the bottom 21 of the connector 2, an outer diameter of the second connecting pipe is the same as an outer diameter of the double-wall corrugated pipe, a sealing ring 4 is disposed between the second connecting pipe 3 and the thread portion 22 of the connector 2, a gap for accommodating the double-wall corrugated pipe is left between the sealing ring 4 and the second connecting pipe 3, and the thread portion 22 of the connector 2 is connected to a compression nut 5. When the double-wall corrugated pipe is used, the double-wall corrugated pipe is firstly inserted into the through hole of the compression nut 5, then the double-wall corrugated pipe is sleeved on the second connecting pipe 3, the double-wall corrugated pipe is completely positioned in a gap between the sealing ring 4 and the second connecting pipe 3, and finally the compression nut 5 is screwed on the threaded part 22 of the connector 2.
As shown in fig. 4 to 7, the sealing ring 4 is uniformly provided with the sealing strips 41, one side of the sealing strip 41 close to the threaded portion 22 is provided with a protruding block 42, one side of the sealing strip 41 close to the second connecting pipe 3 is provided with a pressing block 43, and in the process of screwing the pressing nut 5, the pressing nut 5 presses the protruding block 42 on the sealing strip 41, so that the pressing block 43 on the other side presses the double-wall corrugated pipe to fasten and seal the double-wall corrugated pipe.
As shown in fig. 1, the outer wall of the second connection pipe 3 is provided with an annular protrusion matching with the corrugated groove of the double-wall corrugated pipe, and the annular protrusion can effectively prevent the double-wall corrugated pipe from sliding on the second connection pipe 3, so that the connection is firmer.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The utility model provides a PFA double-walled bellows connecting device, it includes first connecting pipe (1), the both ends of first connecting pipe (1) are provided with connector (2), its characterized in that: connector (2) include bottom (21) that link to each other with first connecting pipe (1) and screw thread portion (22) of setting on bottom (21), bottom (21) inner wall of connector (2) is provided with second connecting pipe (3) with first connecting pipe (1) intercommunication, be provided with between screw thread portion (22) of second connecting pipe (3) and connector (2) sealing washer (4), leave the clearance that is used for holding double-walled bellows between sealing washer (4) and second connecting pipe (3), screw thread portion (22) of connector (2) are connected with gland nut (5).
2. A PFA double-walled bellows connection device according to claim 1, wherein: evenly be provided with sealing strip (41) on sealing washer (4), one side that is close to screw thread portion (22) of sealing strip (41) is provided with lug (42), one side that is close to second connecting pipe (3) of sealing strip (41) is provided with briquetting (43).
3. A PFA double-walled bellows connection device according to claim 1, wherein: and the outer wall of the second connecting pipe (3) is provided with an annular bulge matched with the corrugated groove of the double-wall corrugated pipe.
4. A PFA double-walled bellows connection device according to claim 1, wherein: the outer diameter of the second connecting pipe (3) is the same as that of the double-wall corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594599.4U CN210153365U (en) | 2019-04-28 | 2019-04-28 | PFA double-wall corrugated pipe connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920594599.4U CN210153365U (en) | 2019-04-28 | 2019-04-28 | PFA double-wall corrugated pipe connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210153365U true CN210153365U (en) | 2020-03-17 |
Family
ID=69757619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920594599.4U Expired - Fee Related CN210153365U (en) | 2019-04-28 | 2019-04-28 | PFA double-wall corrugated pipe connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210153365U (en) |
-
2019
- 2019-04-28 CN CN201920594599.4U patent/CN210153365U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: PFA double wall bellows connecting device Effective date of registration: 20210729 Granted publication date: 20200317 Pledgee: Industrial and Commercial Bank of China Limited Changzhou Economic Development Zone sub branch Pledgor: CHANGZHOU XCF POLYMER MATERIALS Co.,Ltd. Registration number: Y2021980007035 |
|
| 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: 20200317 |