CN203011317U - Boring depth measurement scale for internal screw thread in oil well pipe - Google Patents
Boring depth measurement scale for internal screw thread in oil well pipe Download PDFInfo
- Publication number
- CN203011317U CN203011317U CN 201320005786 CN201320005786U CN203011317U CN 203011317 U CN203011317 U CN 203011317U CN 201320005786 CN201320005786 CN 201320005786 CN 201320005786 U CN201320005786 U CN 201320005786U CN 203011317 U CN203011317 U CN 203011317U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- hole
- oil well
- well pipe
- boring depth
- 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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Abstract
The utility model relates to a boring depth measurement scale for the internal screw thread in an oil well pipe, comprising a connecting rod and a locating rod. The lower side of the connecting rod is provided with scales, the zero point of the scales is positioned at the end portion of the connecting rod, the locating rod can move along the connecting rod, the connecting rod at the zero point end is connected with a positioning head, and one side of the positioning head is provided with a positioning edge matched with the withdrawing inclined plane of a coupling boring. The boring depth measurement scale for the internal screw thread in an oil well pipe is characterized in that a transition arc is formed between the positioning edge and the lower side edge of the connecting rod, and the central angle of the transition arc is larger than the central angle of the arc between the coupling boring and the withdrawing inclined plane. The locating rod is provided with a through hole, and the connecting rod passes through the through hole on the locating rod. One side of the through hole is provided with a fixing hole, and the connecting rod and the locating rod are fixedly connected through the fixing hole and the bolt arranged in the fixing hole. The utility model provides the technology effects as following: the boring depth at an internal screw thread pipe end is directly measured, usage is convenient, a measurement error is minimized, and the measurement precision is raised.
Description
Technical field
The utility model relates to a kind of measurement mechanism of pipe internal thread boring depth, especially a kind of oil well pipe internal thread boring depth dip stick.
Background technology
Round thread box cupling in the API tubing and casing needs bore hole, at the end of box cupling bore hole 9(as shown in Figure 9), any cutter all has circular arc adding the point of a knife of man-hour due to the bore hole blade, no matter it is much that circular arc has, the bore hole 9 of final processing is (as shown in figure 12) that a circular arc is arranged with the intersection point on bore hole withdrawing inclined-plane 8; Due to the impact of this circular arc, naked eyes are difficult to accurately judge the end position of pit gauge when measuring with common pit gauge (as Figure 10, shown in Figure 11), finally cause the degree of depth out of true that measures.Common pit gauge is when measuring, and the positioning head 10 of pit gauge contact with the withdrawing inclined-plane, and the Surface Contact of the following and bore hole 9 of connecting rod 11, naked eyes are difficult to see the intersection point on box cupling bore hole 9 and bore hole withdrawing inclined-plane 8, or cause measuring inaccurate because placing injustice.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of oil well pipe internal thread boring depth dip stick is provided, and this measurement mechanism is easy to operate, measures accurately.
The technical scheme that provides according to the utility model, described oil well pipe internal thread boring depth dip stick, comprise connecting rod and backstay, downside at connecting rod arranges scale, be positioned at the end of connecting rod the zero point of scale, backstay can move along connecting rod, connects positioning head on the connecting rod that is positioned at scale zero one end, the gulde edge that the withdrawing inclined-plane of a side setting of positioning head and box cupling bore hole matches; Feature is: form arc transition between the lower side of described gulde edge and connecting rod, the central angle of the circular arc at this arc transition place is greater than the central angle of circular arc between box cupling bore hole and withdrawing inclined-plane.
Be provided with through hole on described backstay, connecting rod is through in through hole on backstay.
A side at described through hole is provided with fixed orifice, and connecting rod and backstay are fixed by fixed orifice and the bolt that is arranged in fixed orifice.
Described positioning head is connected with connecting rod by fastening bolt.
Technique effect of the present utility model is: the utility model is by having removed the interference point that contacts with part (box cupling), and increased positioning head, can directly measure rifled tube end boring depth, easy to use, reduce measuring error, improved measuring accuracy.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of positioning head described in the utility model.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the right view of Fig. 2.
Fig. 5 is the structural representation of connecting rod described in the utility model.
Fig. 6 is the vertical view of Fig. 5.
Fig. 7 is the structural representation of backstay described in the utility model.
Fig. 8 is the upward view of Fig. 7.
Fig. 9 is the schematic diagram of tubing and casing round thread box cupling.
Figure 10 is the structural representation of pit gauge of the prior art.
Figure 11 is the vertical view of Figure 10.
Figure 12 is the schematic diagram of tubing and casing round thread box cupling bore hole.
Embodiment
The utility model is described in further detail below in conjunction with concrete accompanying drawing.
As Fig. 1～shown in Figure 8: oil well pipe internal thread boring depth dip stick comprises connecting rod 1, backstay 2, positioning head 3, fastening bolt 4, through hole 5, fixed orifice 6, gulde edge 7, withdrawing inclined-plane 8, bore hole 9 etc.
As Fig. 1～shown in Figure 8, the utility model comprises connecting rod 1 and backstay 2, at the downside of connecting rod 1, scale is set, and is positioned at the end of connecting rod 1 zero point of scale; Be provided with through hole 5 on described backstay 2, connecting rod 1 is through in through hole 5 on backstay 2, is provided with fixed orifice 6 in a side of this through hole 5, and connecting rod 1 and backstay 2 are fixed by fixed orifice 6 and the bolt that is arranged in fixed orifice 6; An end at described connecting rod 1 connects positioning head 3 by fastening bolt 4, the gulde edge 7 that the withdrawing inclined-plane 8 of one side setting of positioning head 3 and box cupling bore hole matches, form arc transition between the lower side of gulde edge 7 and connecting rod 1, the central angle of the circular arc at this arc transition place is greater than the central angle of circular arc between box cupling bore hole 9 and withdrawing inclined-plane 8.
Positioning head described in the utility model 3 forms arc transition with the junction of connecting rod 1, and the circular arc at this arc transition place is larger than the circular arc between bore hole 9 and withdrawing inclined-plane 8, thereby when measuring, can not produce interference; The gulde edge 7 of positioning head 3 contacts with withdrawing inclined-plane 8 corresponding faces, play the effect of location, backstay 2 is fitted on the end face of box cupling when measuring, connecting rod 1 contact box cupling bore hole 9 surfaces simultaneously, rise like this and want a multiple location, can be when not measuring with common pit gauge naked eyes be difficult to see the intersection point on box cupling bore hole 9 and bore hole withdrawing inclined-plane 8, or cause measuring inaccurate because placing injustice, the utility model can be measured the boring depth value of female adapter (box cupling) accurately.
Because the bore hole withdrawing angle of API tubing and casing round thread box cupling is all the same, that is to say that the utility model can measure the boring depth of all specification tubing and casing round thread box cuplings of API, need not to change again associated components.
Claims (4)
1. oil well pipe internal thread boring depth dip stick, comprise connecting rod (1) and backstay (2), downside at connecting rod (1) arranges scale, be positioned at the end of connecting rod (1) zero point of scale, backstay (2) can be mobile along connecting rod (1), at upper positioning head (3), the gulde edge (7) that a side setting of positioning head (3) matches with the withdrawing inclined-plane (8) of box cupling bore hole of connecting of the connecting rod that is positioned at scale zero one end (1); It is characterized in that: form arc transition between the lower side of described gulde edge (7) and connecting rod (1), the central angle of the circular arc at this arc transition place is greater than the central angle of circular arc between box cupling bore hole (9) and withdrawing inclined-plane (8).
2. oil well pipe internal thread boring depth dip stick as claimed in claim 1 is characterized in that: be provided with through hole (5) on described backstay (2), connecting rod (1) is through in through hole (5) on backstay (2).
3. oil well pipe internal thread boring depth dip stick as claimed in claim 2, it is characterized in that: the side at described through hole (5) is provided with fixed orifice (6), and connecting rod (1) and backstay (2) are fixed by fixed orifice (6) and the bolt that is arranged in fixed orifice (6).
4. oil well pipe internal thread boring depth dip stick as claimed in claim 1 is characterized in that: described positioning head (3) is connected with connecting rod (1) by fastening bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005786 CN203011317U (en) | 2013-01-07 | 2013-01-07 | Boring depth measurement scale for internal screw thread in oil well pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005786 CN203011317U (en) | 2013-01-07 | 2013-01-07 | Boring depth measurement scale for internal screw thread in oil well pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011317U true CN203011317U (en) | 2013-06-19 |
Family
ID=48602906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320005786 Expired - Fee Related CN203011317U (en) | 2013-01-07 | 2013-01-07 | Boring depth measurement scale for internal screw thread in oil well pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154890A (en) * | 2014-08-29 | 2014-11-19 | 南车成都机车车辆有限公司 | Device and method for detecting contact face of haulage motor axle box body inner hole |
| CN112284212A (en) * | 2020-10-10 | 2021-01-29 | 中车常州车辆有限公司 | Measuring method of special measuring scale for journal length |
-
2013
- 2013-01-07 CN CN 201320005786 patent/CN203011317U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154890A (en) * | 2014-08-29 | 2014-11-19 | 南车成都机车车辆有限公司 | Device and method for detecting contact face of haulage motor axle box body inner hole |
| CN112284212A (en) * | 2020-10-10 | 2021-01-29 | 中车常州车辆有限公司 | Measuring method of special measuring scale for journal length |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140922 Granted publication date: 20130619 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150322 Granted publication date: 20130619 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20150107 |
|
| EXPY | Termination of patent right or utility model |