CN212158368U - Adjustable circle center positioner - Google Patents
Adjustable circle center positioner Download PDFInfo
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- CN212158368U CN212158368U CN202020415063.4U CN202020415063U CN212158368U CN 212158368 U CN212158368 U CN 212158368U CN 202020415063 U CN202020415063 U CN 202020415063U CN 212158368 U CN212158368 U CN 212158368U
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- circle center
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- cable pipeline
- locating plate
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Abstract
The application provides a centre of a circle locator with adjustable has solved and has been difficult to find the problem of cable pipeline the central axis under the circumstances of the damaged, intact geometric shape of cable pipeline beveling breach, centre of a circle locator with adjustable is including being locating plate and four group's edges of circular setting the locating component that locating plate circumference set up, locating component include installation department and movably wear to locate in the installation department and can follow the locating lever of the radial movement of locating plate. This centre of a circle locator with adjustable stretches out the length of locating plate with the size of the cable pipeline that awaits measuring of adaptation through changing four locating levers to reach the effect at definite cable pipeline center, realize looking for fast of cable pipeline, easy operation, the precision is high, and efficiency of software testing is high, adjusts the locating lever simultaneously and stretches out the length of locating plate still can be adapted to the regulation between the different cable pipeline pipe diameters.
Description
Technical Field
The application relates to the technical field of bridge construction equipment, in particular to an adjustable circle center positioner.
Background
The stay cable is a link for connecting the tower and the beam of the cable-stayed bridge, one end of the stay cable is anchored at the tower end, the other end of the stay cable is anchored at the main beam, the length of the stay cable is varied from dozens of meters to hundreds of meters, and the stress state of the stay cable can be changed when the axis of the cable conduit is inconsistent with the axis of the end of the stay cable in a catenary state, so that the stay cable is locally subjected to shearing force, the service life of the stay cable is influenced, and the stay cable is extremely unsafe.
The axis of the cable guide pipe needs to be found out in the installation process of the cable guide pipe of the cable-stayed bridge and is overlapped with the axis of the designed stay cable, so that the accuracy of the subsequent stay cable installation can be ensured. Because the cable pipeline is a hollow structure, the prism needs to be erected on the axis of the cable pipeline in measurement, and whether the spatial position of the cable pipeline is correct can be determined. The existing device for determining the central line of the cable pipeline can adopt an inner hole central line positioning device which utilizes three groups of articulated arms with one end fixed on a positioning rod and the other end capable of sliding on the positioning rod, and the position of the hinge point of the hinge arm is changed to ensure that the hinge point is tightly attached to the inner wall of the pipeline of the cable to be tested, so as to indicate the position of the central axis of the cable pipeline by the laser emitted by the laser emitter on the end part of the positioning rod, but because the three groups of articulated arms need to be adjusted synchronously, the inner hole center line positioning device can only measure a circular inner hole, and the center determination of the cable pipeline bevel incision is difficult to realize, and due to the processing and transportation reasons of manufacturers, the geometric shape of the oval section of the oblique notch of the cable guide pipe is usually difficult to completely reserve, so that the method for searching the long axis and the short axis in a ruler measuring mode is inconvenient, the centering is inaccurate, and the installation precision of the cable guide pipe is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ann tears convenient and can find out the adjustable centre of a circle locator of cable pipeline scarf axis center fast open.
In order to achieve the above object, the present application provides the following technical solutions:
the utility model provides a centre of a circle locator with adjustable, is including being locating plate and four group's edges of circular setting the locating component that locating plate circumference set up, locating component includes installation department and movably wears to locate in the installation department and can follow the radial movement's of locating plate locating lever.
Further setting: the mounting portion comprises a nut fixed on the positioning plate, and the positioning rod comprises a screw rod extending along the radial direction of the positioning plate and inserted in the nut.
Further setting: the end part of the screw rod, which is far away from the circle center of the positioning plate, is arranged in a conical shape.
Further setting: the end part of the screw rod, which is close to the circle center of the positioning plate, is provided with a screw head, and the cross-sectional area of the screw head is larger than that of the screw rod.
Further setting: four sets of locating component follow the circumference equipartition of locating plate.
Further setting: a plurality of hollow holes are formed in the positioning plate.
Further setting: the thickness of the positioning plate is 0.8 cm.
Further setting: the diameter of locating plate is 300mm, the length of locating rod is 75 mm.
Compared with the prior art, the scheme of the application has the following advantages:
1. in the adjustable circle center positioner, the length of the four positioning rods extending out of the positioning plate is changed to adapt to the size of a cable pipeline to be measured, so that the function of determining the center of the cable pipeline is achieved. For the determination of the center of the cable pipeline inclined cut, the length of two groups of relative positioning rods is adjusted and the end parts of the positioning rods are clung to the inner wall of the cable pipeline inclined cut by utilizing the principle of determining the major and minor axes of an ellipse to determine the geometric center of the cable pipeline inclined cut, so that the geometric center of the cable pipeline inclined cut can be determined according to the circle center of the positioning plate, and the problem that the center of the cable pipeline inclined cut is difficult to find under the conditions that the cable pipeline inclined cut is damaged and is not complete is solved; in addition, still can utilize the geometric characteristics of circle, the principle that arbitrary a little distance on the circumference equals in the centre of a circle promptly, the length that the locating lever on the adjustment locating plate stretches out the locating plate is unified with the internal diameter phase-match of the cable pipeline that awaits measuring, then can confirm the axis position of the cable pipeline that awaits measuring through the centre of a circle of confirming the locating plate, the quick centering to the cable pipeline has been realized, the adjustable centre of a circle locator of this application is applicable in the central determination of the different positions of cable pipeline, and easy operation, and the precision is high, the efficiency of software testing is high, stretch out the length of locating plate through adjusting the locating lever simultaneously and still can be adapted to the regulation between the.
2. In the adjustable circle center positioner of this application, can confirm the axis position of this cable pipeline through putting into the cable pipeline that awaits measuring with the locator that has adjusted, easy operation, ann tears the convenience open to this locator can have enough to meet the need the use, has reduced engineering consumption then.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an embodiment of an adjustable circle center positioner according to the present application.
In the figure, 1, a positioning plate; 11. hollowing out holes; 2. a positioning assembly; 21. a nut; 22. a screw; 221. A screw head.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
Referring to fig. 1, the present application relates to an adjustable circle center locator, which solves the problem that the central axis of a cable pipeline is difficult to find under the conditions that the beveling crevasses of the cable pipeline are damaged and the cable pipeline has no complete geometric shape, and meanwhile, the adjustable circle center locator of the present application can be clamped into the cable pipeline to realize the quick centering of the cable pipeline, and the adjustable circle center locator has a simple structure and is convenient to operate.
Centre of a circle locator with adjustable include locating plate 1 and locate locating component 2 on the locating plate 1, wherein, locating plate 1 is circular setting, locating component 2 is equipped with four groups and follows locating plate 1's circumference sets up, locating component 2 is including being fixed in installation department and movably wear to locate on the locating plate 1 the locating lever of installation department, the locating lever is followed locating plate 1's radial extension can be followed locating plate 1's radial movement then can be according to the size of the cable pipe internal diameter that awaits measuring or the size of scarf, the adjustment the locating lever stretches out locating plate 1's length, so that the tip of locating lever is hugged closely with the inner wall of cable pipe, at this moment locating plate 1's the centre of a circle corresponds the geometric center who is this cable pipe's axis position or its scarf, and measurement accuracy is high.
Preferably, the installation department of this application is for being fixed in nut 21 on the locating plate 1, the locating lever for peg graft in the nut 21 and with nut 21 threaded connection's screw rod 22, simple structure can realize the screw rod 22 edge through revolving screw rod 22 the radial reciprocating motion of locating plate 1 reaches the adjustment then the locating lever stretches out the length of locating plate 1, convenient operation to can adjust screw rod 22's position according to the cable pipeline size's that awaits measuring difference, with the regulation that is applicable to the cable pipeline of different pipe diameters, threaded connection has certain auto-lock performance simultaneously, and structural stability is good.
Furthermore, the end part of the screw rod 22 far away from the center of the circle of the positioning plate 1 is arranged in a conical shape, so that the end part of the screw rod 22 is in point contact with the inner wall of the cable pipeline, and the end part of the screw rod 22 can be ensured to be closely attached to the inner wall of the cable pipeline to be measured, and the measurement accuracy of the central axis of the cable pipeline can be ensured.
Furthermore, the conical end of the screw 22 is ground into a circular arc shape to avoid damage to the cable duct caused by the sharp end of the screw 22.
In addition, the screw 22 is provided with a screw head 221 having a section larger than that of the screw 22 at a position away from the conical end thereof, so that a constructor can screw the screw 22 through the screw head 221.
In a preferred embodiment, four sets of positioning assemblies 2 are arranged, and the four sets of positioning assemblies 2 are uniformly distributed along the circumferential direction of the positioning plate 1.
Preferably, the positioning plate 1 is further provided with a plurality of hollow holes 11 to have a weight-reducing effect. Specifically, the fretwork hole 11 of this application is equipped with four, and with the interval setting of locating lever.
Preferably, the thickness of the positioning plate 1 is 8mm, the diameter thereof is 300mm, and the size of the screw 22 is 10mm x 75mm, so that the cable pipeline testing range is 300 mm-375 mm. Furthermore, it should be understood that the above dimensions are related to the dimensional requirements of the cable duct and can be adapted during construction according to the actual measurement needs.
In addition, it is further preferred that the locating plate 1 is made of steel, and the nut 21 is welded on the locating plate 1, so that the locator of the present application has good structural stability, and can be recycled for multiple times, thereby reducing engineering consumption.
The adjustable circle center positioner applies the circular geometric characteristic, namely the distance from the circle center to any point on the circumference is equal, so that the adjustable circle center positioner adjusts the size of the four screw rods 22 extending out of the positioning plate 1 according to the size of a cable conduit to be measured, ensures that the extending lengths of the four screw rods 22 are the same, ensures that the circumference limited by the adjustable circle center positioner is matched with the size of the cable conduit to be measured, and can determine the axis position of the cable conduit by determining the circle center of the positioning plate 1; in addition, based on the ellipse that cable duct scarf formed, the adjustable centre of a circle locator of this application still can follow the method of confirming oval major and minor axis in order to confirm oval geometric center, through the length of adjustment relative two sets of locating levers so that the tip of locating lever hugs closely with the inner wall of cable duct scarf, thereby can be according to the centre of a circle of locating plate with confirming the geometric center of cable duct scarf, thereby solved cable duct scarf and be difficult to find the problem of its center under its impaired, the incomplete circumstances, convenient operation. Meanwhile, the extending length of the positioning rod can be changed in actual operation so as to adapt to adjustment among different cable pipeline pipe diameters.
In addition, in other embodiments, a graduated scale extending along the radial direction of the positioning plate 1 can be further provided on the positioning plate to improve the accuracy of the extending lengths of the four screw rods 22, so as to improve the measurement accuracy.
After the lengths of the four screw rods 22 are adjusted, the adjustable circle center positioner can be clamped into a cable conduit to be measured, the geometric centers of cable conduit beveled notches with the same size or the central axis positions of cable conduits with the same diameter can be found out quickly, the efficiency of measuring and positioning is greatly improved, the positioner can be taken out after the test is finished, the adjustable circle center positioner is convenient to mount and dismount, the turnover use of the positioner is realized, and the engineering waste is reduced.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (8)
1. An adjustable circle center positioner is characterized in that: including being locating plate and four group's edges of circular setting the locating component that locating plate circumference set up, locating component includes installation department and movably wears to locate in the installation department and can follow the radial movement's of locating plate locating lever.
2. The adjustable circle center locator as claimed in claim 1, wherein: the mounting portion comprises a nut fixed on the positioning plate, and the positioning rod comprises a screw rod extending along the radial direction of the positioning plate and inserted in the nut.
3. The adjustable circle center locator as claimed in claim 2, wherein: the end part of the screw rod, which is far away from the circle center of the positioning plate, is arranged in a conical shape.
4. The adjustable circle center locator as claimed in claim 2, wherein: the end part of the screw rod, which is close to the circle center of the positioning plate, is provided with a screw head, and the cross-sectional area of the screw head is larger than that of the screw rod.
5. The adjustable circle center locator as claimed in claim 1, wherein: four sets of locating component follow the circumference equipartition of locating plate.
6. The adjustable circle center locator as claimed in claim 1, wherein: a plurality of hollow holes are formed in the positioning plate.
7. The adjustable circle center locator as claimed in claim 1, wherein: the thickness of the positioning plate is 0.8 cm.
8. The adjustable circle center locator as claimed in claim 1, wherein: the diameter of locating plate is 300mm, the length of locating rod is 75 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020415063.4U CN212158368U (en) | 2020-03-26 | 2020-03-26 | Adjustable circle center positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020415063.4U CN212158368U (en) | 2020-03-26 | 2020-03-26 | Adjustable circle center positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212158368U true CN212158368U (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020415063.4U Active CN212158368U (en) | 2020-03-26 | 2020-03-26 | Adjustable circle center positioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799262A (en) * | 2022-03-22 | 2022-07-29 | 中国建筑第五工程局有限公司 | Surface drilling device for construction pipeline |
-
2020
- 2020-03-26 CN CN202020415063.4U patent/CN212158368U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799262A (en) * | 2022-03-22 | 2022-07-29 | 中国建筑第五工程局有限公司 | Surface drilling device for construction pipeline |
| CN114799262B (en) * | 2022-03-22 | 2024-02-13 | 中国建筑第五工程局有限公司 | Surface drilling device for construction pipeline |
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