CN204944473U - A kind of ejector of stress-strain test signal wire - Google Patents
A kind of ejector of stress-strain test signal wire Download PDFInfo
- Publication number
- CN204944473U CN204944473U CN201520630829.XU CN201520630829U CN204944473U CN 204944473 U CN204944473 U CN 204944473U CN 201520630829 U CN201520630829 U CN 201520630829U CN 204944473 U CN204944473 U CN 204944473U
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- stress
- signal wire
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- penstock
- hole
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Abstract
The utility model embodiment discloses a kind of ejector of stress-strain test signal wire, comprise the airtight flange that middle part is provided with through hole, one end of through hole is aimed at the through hole center superposition of Branch Penstock tube wall and firmly welds, through hole inside is filled with NBR packing material, extraction electric wire is prefabricated with in NBR packing material, the one end of drawing electric wire is connected with Branch Penstock inboard wall stress strain testing signal wire during the hydraulic testing by the through hole of Branch Penstock tube wall, the other end is connected with the signal wire of stress-strain data acquisition analysis system, the opposite side of airtight flange is also connected with flange end cap, the purpose of this utility model is to provide a kind of difficult problem that Branch Penstock inboard wall stress strain testing signal wire is drawn when effectively can solve the hydraulic testing, guarantee the ejector of the stress-strain test signal wire of Branch Penstock hydraulic testing safety.
Description
Technical field
The utility model relates to ejector field, particularly relates to a kind of ejector of stress-strain test signal wire.
Background technology
Hydraulic Metal Branch Penstock hydraulic testing stress-strain test,, in Branch Penstock hydraulic testing process, stress-strain measurement is carried out to its inside and outside wall, the situation of Branch Penstock structural stress when dynamically can grasp the hydraulic testing in time, and verify the theory calculate stress value of checking calculation key point; If the components of stress of stress test are close to the allowable stress value of material, then stop the Branch Penstock hydraulic testing immediately, guarantee experimental safe.Because water pressure during the Branch Penstock hydraulic testing is higher, being enclosed in inner inboard wall stress strain testing signal wire draws very difficult, if inboard wall stress strain cannot be tested, then effectively can not monitor the Branch Penstock hydraulic testing, experimental safe cannot be guaranteed, therefore it is imperative to carry out innovation to the extraction of Branch Penstock inboard wall stress strain testing signal wire.
Utility model content
The utility model embodiment technical matters to be solved is, a kind of difficult problem that Branch Penstock inboard wall stress strain testing signal wire is drawn when effectively can solve the hydraulic testing is provided, guarantees the ejector of the stress-strain test signal wire of Branch Penstock hydraulic testing safety.
The ejector of described stress-strain test signal wire, comprise the airtight flange that middle part is provided with through hole, one end of described through hole is aimed at the through hole center superposition of Branch Penstock tube wall and firmly welds, described through hole inside is filled with NBR packing material, extraction electric wire is prefabricated with in described NBR packing material, one end of described extraction electric wire is connected with Branch Penstock inboard wall stress strain testing signal wire during the hydraulic testing by the through hole of Branch Penstock tube wall, the other end is connected with the signal wire of stress-strain data acquisition analysis system, the opposite side of described airtight flange is also connected with flange end cap.
As the further improvement of the technical program, the inner NBR packing material of described airtight flange and Branch Penstock tube wall junction are provided with caulking gum pad.
Place О type sealing rubber ring in the groove of described flange end cap, described flange end cap fastening bolt is fastened on airtight flange.
Implement the utility model embodiment, there is following beneficial effect:
The ejector of the utility model embodiment stress-strain test signal wire, comprise caulking gum pad, NBR packing material, О type sealing rubber ring, draw electric wire, airtight flange, fastening bolt and flange end cap etc., draw electric wire in advance in NBR packing material, NBR packing material is arranged in the through hole in the middle of airtight flange, airtight flange welding is at Branch Penstock outer wall, caulking gum pad and the through hole of О type sealing rubber ring to airtight flange and NBR packing material seal, NBR packing material is fastened in airtight flange through hole by flange end cap and fastening bolt, form an airtight signal wire ejector, the utility model structure is simple, novel unique, easily process, cost is low, the extraction of inboard wall stress strain testing signal wire when being applicable to all Branch Penstock hydraulic testings, the difficult problem that when effectively can solve the Branch Penstock hydraulic testing, inboard wall stress strain testing signal wire is drawn.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment cross-sectional side structural drawing;
Fig. 2 is the utility model embodiment Facad structure schematic diagram.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model embodiment is provided by Fig. 1-Fig. 2, structure of the present utility model is, comprise caulking gum pad 7, NBR packing material 1, О type sealing rubber ring 2, draw electric wire 3, airtight flange 6, fastening bolt 5 and flange end cap 4 etc., during the hydraulic testing, Branch Penstock inboard wall stress strain testing signal wire is connected with extraction electric wire 3 of the present utility model, draw electric wire 3 pre-in NBR packing material 1, NBR packing material 1 is arranged in the intermediate throughholes of airtight flange 6, airtight flange 6 is welded on Branch Penstock 8 outer wall, caulking gum pad 7 and the through hole of О type sealing rubber ring 2 to airtight flange 6 and NBR packing material 1 seal, NBR packing material 1 is fastened in the through hole of airtight flange 6 by flange end cap 4 and fastening bolt 5, form an airtight signal wire ejector.
During use, before the hydraulic testing, a through hole is bored to Branch Penstock tube wall 8, airtight flange 6 is aimed at the through hole center superposition of Branch Penstock tube wall 8 and firmly welds, caulking gum pad 7 and NBR packing material 1 are put into the through hole compacting of airtight flange 6; Branch Penstock inboard wall stress strain testing signal wire is connected to extraction electric wire 3 the inner in advance in NBR packing material 1 and carries out insulated enclosure; In the groove of flange end cap 4, place О type sealing rubber ring 2, and flange end cap 4 fastening bolt 5 is fastened on airtight flange 6; The signal wire of stress-strain data acquisition analysis system receives the outer end of drawing on electric wire 3, the stress-strain test of Branch Penstock inwall when can carry out the hydraulic testing.
Above disclosedly be only a kind of preferred embodiment of the utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (3)
1. the ejector of a stress-strain test signal wire, it is characterized in that, comprise the airtight flange that middle part is provided with through hole, one end of described through hole is aimed at the through hole center superposition of Branch Penstock tube wall and firmly welds, described through hole inside is filled with NBR packing material, extraction electric wire is prefabricated with in described NBR packing material, one end of described extraction electric wire is connected with Branch Penstock inboard wall stress strain testing signal wire during the hydraulic testing by the through hole of Branch Penstock tube wall, the other end is connected with the signal wire of stress-strain data acquisition analysis system, the opposite side of described airtight flange is also connected with flange end cap.
2. the ejector of stress-strain test signal wire as claimed in claim 1, is characterized in that, the inner NBR packing material of described airtight flange and Branch Penstock tube wall junction are provided with caulking gum pad.
3. the ejector of stress-strain test signal wire as claimed in claim 1, is characterized in that, place О type sealing rubber ring in the groove of described flange end cap, described flange end cap fastening bolt is fastened on airtight flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520630829.XU CN204944473U (en) | 2015-08-20 | 2015-08-20 | A kind of ejector of stress-strain test signal wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520630829.XU CN204944473U (en) | 2015-08-20 | 2015-08-20 | A kind of ejector of stress-strain test signal wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204944473U true CN204944473U (en) | 2016-01-06 |
Family
ID=55011890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520630829.XU Expired - Fee Related CN204944473U (en) | 2015-08-20 | 2015-08-20 | A kind of ejector of stress-strain test signal wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204944473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571952A (en) * | 2016-02-02 | 2016-05-11 | 浙江大学 | Hyperbaric cabin device for external pressure test of pressure container model |
-
2015
- 2015-08-20 CN CN201520630829.XU patent/CN204944473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571952A (en) * | 2016-02-02 | 2016-05-11 | 浙江大学 | Hyperbaric cabin device for external pressure test of pressure container model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160106 Termination date: 20210820 |