CN217877709U - Telescopic centering rod - Google Patents
Telescopic centering rod Download PDFInfo
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- CN217877709U CN217877709U CN202222094269.3U CN202222094269U CN217877709U CN 217877709 U CN217877709 U CN 217877709U CN 202222094269 U CN202222094269 U CN 202222094269U CN 217877709 U CN217877709 U CN 217877709U
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- bracing piece
- intermediate lever
- connecting frame
- prism
- centering rod
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Abstract
The utility model provides a concertina type centering rod, includes prism, connection frame, bracing piece, sill bar, tip and a plurality of intermediate lever, the vertical setting of tip and most advanced downward, the sill bar connect in the upper end of tip, it is a plurality of the intermediate lever is by supreme threaded connection in proper order down, sill bar threaded connection is in the intermediate lever that is located the below, the inside hollow and lower extreme opening of bracing piece, bracing piece threaded connection is in the intermediate lever that is located the top, the connection frame cover is located the outer peripheral face of bracing piece, the prism pass through adjusting device connect in the connection frame, adjusting device is used for adjusting the angle of prism. The height of the design is adjustable, the use is convenient, and the structure is stable.
Description
Technical Field
The utility model relates to a construction engineering measuring instrument field especially relates to a concertina type centering rod.
Background
With the advance of the urbanization process of China, the pressure of urban transportation is continuously increased, high-speed rails and subways are adopted and greatly developed by most areas of China as important means for relieving the pressure of urban transportation, measurement guarantee needs to be provided for line maintenance and modification for a long time in the subway construction and operation process, and the setting-out task is generally carried out through centering rods in the construction and measurement process.
Generally use the fixed prism of tripod when measuring the lofting, such advantage is that the prism is placed stably, does not need the special messenger to hold up the prism, but in comparatively complicated construction environment, does not have sufficient space to erect the tripod, under the condition that can't use the tripod, generally through the little prism pair short well tip satisfy closely lofting. However, in the construction stage of the high-speed railway track slab, when the track slab is subjected to rough corner point laying and lofting, lofting point positions are very many, hundreds of point positions need to be lofted in one day, due to the fact that the size of the common centering rod is large, a front-looking worker always squats during lofting, the physical consumption of a measuring worker is very large, meanwhile, in order to meet different measuring environments, centering tips with different lengths need to be carried frequently for replacement, operation is complex, the prisms need to be readjusted after each replacement, and efficiency is affected.
Disclosure of Invention
The utility model aims at overcoming the inconvenient height-adjusting of centering rod, complex operation's defect and the problem that exists among the prior art, providing a height-adjustable, convenient to use's concertina type centering rod.
In order to achieve the above purpose, the technical solution of the utility model is that:
the utility model provides a concertina type centering rod, includes prism, connection frame, bracing piece, sill bar, tip and a plurality of intermediate lever, the vertical setting of tip and most advanced downward, the sill bar connect in the upper end of tip, it is a plurality of the intermediate lever is by supreme threaded connection in proper order down, sill bar threaded connection is in the intermediate lever that is located the below, the inside hollow and lower extreme opening of bracing piece, bracing piece threaded connection is in the intermediate lever that is located the top, the connection frame cover is located the outer peripheral face of bracing piece, the prism pass through adjusting device connect in the connection frame, adjusting device is used for adjusting the angle of prism.
The utility model discloses a hollow and the lower extreme opening of intermediate lever, all be provided with the internal thread in intermediate lever and the bracing piece, the upper end of intermediate lever and sill bar all is provided with the connection pad, the outer peripheral face of connection pad be provided with internal thread assorted external screw thread, the upper portion of intermediate lever is located the open end of the intermediate lever of its top, the upper portion of sill bar is located the open end of the intermediate lever of below, and the upper portion that is located the intermediate lever of top is located in the open end of bracing piece.
A plurality of the external diameter of intermediate lever is by lower supreme grow gradually, and the external diameter that is located the intermediate lever of below is greater than the external diameter of sill bar, and the external diameter that is located the intermediate lever of the top is less than the external diameter of bracing piece.
The center of the upper end face of the tip is provided with a bolt, the tip is connected to the lower end of the bottom rod through bolt threads, and threads on the bolt are opposite to the external threads of the connecting disc in rotating direction.
Adjusting device includes supporting seat, level bubble, the supporting seat half surround in the recess that is used for holding the prism is offered in the periphery of bracing piece, the outside, the left and right sides of bracing piece all is provided with the axis of rotation, two the axis of rotation rotate respectively connect in the left and right sides of connecting frame, the level bubble connect in the upside of connecting frame.
The supporting seat includes supporting part and installation department, the installation department embedded in the supporting part, the prism is located the installation department, the supporting part has seted up the circular arc groove on keeping away from the one side vertical direction of installation department, the circular arc groove half surround in the bracing piece, two the axis of rotation connect respectively in the left and right sides of supporting part.
The utility model discloses a bracing piece, including the carriage, the carriage is provided with the through-hole, two the axis of rotation is located two through-holes respectively, the rotation hole has all been seted up to the last downside of carriage, the bracing piece is located rotate downthehole, two the lateral wall that rotates the hole has all been seted up and has been rotated the groove, it is provided with the ring board to rotate the inslot, the inner wall of ring board connect in the outer peripheral face of bracing piece, the carriage rotate connect in bracing piece, ring board.
The prism is characterized in that one end, away from the prism, of the circular ring plate is provided with a first annular groove, the connecting frame is provided with a second annular groove matched with the first annular groove, steel balls are arranged in the first annular groove, a spring is arranged in the second annular groove, one end of the spring is connected to the second annular groove, and the other end of the spring is abutted to the steel balls.
The joint of the support rod and the connecting frame is provided with a sealing washer, and the joint of the circular ring plate and the connecting frame is provided with a sealing washer.
The outer peripheral surfaces of the middle rod and the bottom rod are provided with scale marks.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to an among the concertina type centering rod, mode through threaded connection connects intermediate lever, bracing piece, sill bar, can adjust the height of intermediate lever according to specific work needs, only needs to rotate the intermediate lever, can adjust the height of whole pole, and convenient to use after high definite, through the angle of adjusting device regulation prism, makes the prism keep vertical state, makes the data of laying-out position or collection more accurate, compares with prior art, highly can adjust at will. Therefore, the utility model has adjustable structure height and convenient use.
2. The utility model relates to an among the concertina type centering rod, after having measured, can with the sill bar precession in the intermediate lever of below, in the intermediate lever of its top is precession again with the intermediate lever in proper order, in last intermediate lever and sill bar precession bracing piece, conveniently carry, compare with prior art, the further grow of altitude mixture control's scope. Therefore, the utility model discloses altitude mixture control scope is big, conveniently carry.
3. The utility model relates to an among the concertina type centering rod, through setting up the bolt, make the tip can follow the sill bar and take off, conveniently change, through setting up the screw thread on the bolt and the external screw thread of connection pad to opposite revolve to, when rotating the intermediate lever, owing to revolve to opposite, make the tip can not rotate simultaneously, avoid when height-adjusting, the tip pine leads to whole pole unstable, and measurement accuracy worsens. Therefore, the utility model discloses stable in structure.
4. The utility model relates to an among the concertina type centering rod, through setting up the axis of rotation, the prism can rotate in upper and lower direction, height-adjusting, the carriage can wind bracing piece free rotation arbitrary angle, conveniently adjusts the position of prism, the different environment of adaptation that can be better, through setting up the steel ball, makes the carriage rotate more in the same direction as smooth, rotates certain angle back, makes the carriage fix at the target location through the effort that inside spring given, confirms whether the prism is in vertical state through horizontal bubble. Therefore, the utility model discloses make things convenient for angle regulation, accuracy higher.
5. The utility model relates to an among the concertina type centering rod, through set up the scale mark outside the intermediate lever, can adjust the back that targets in place according to the height that actual working environment predetermined needs the adjustment probably, finely tune again to reach best operating condition. Therefore, the utility model is convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention in an operating state.
Fig. 2 is a schematic structural view of the present invention when not in operation.
Fig. 3 is a schematic cross-sectional view of the middle rod of the present invention.
Fig. 4 is a schematic sectional view of the middle bottom rod and the tip of the present invention.
Fig. 5 is a schematic sectional view of the support rod and the connection frame of the present invention.
Fig. 6 is a schematic sectional view of the middle support rod and the connecting frame of the present invention.
Fig. 7 is an enlarged schematic view at a in fig. 6.
In the figure: the connecting device comprises a tip 1, a bottom rod 2, an intermediate rod 3, a support rod 4, a connecting frame 5, a prism 6, a connecting disc 7, a bolt 8, a support seat 9, a support part 91, an installation part 92, a groove 93, an arc groove 94, an internal thread 10, an external thread 11, a rotating shaft 12, a through hole 13, a rotating hole 14, a rotating groove 15, an annular plate 16, a first annular groove 17, a second annular groove 18, a steel ball 19 and a spring 20.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 7, a concertina type centering rod, includes prism 6, connecting frame 5, bracing piece 4, sill bar 2, tip 1 and a plurality of intermediate lever 3, 1 vertical setting of tip and most advanced downward, sill bar 2 connect in the upper end of tip 1, it is a plurality of intermediate lever 3 is by supreme threaded connection in proper order down, 2 threaded connection in the intermediate lever 3 that is located the below, the inside hollow and lower extreme opening of bracing piece 4, 4 threaded connection in the intermediate lever 3 that is located the top of bracing piece 4, connecting frame 5 covers and locates the outer peripheral face of bracing piece 4, prism 6 pass through adjusting device connect in connecting frame 5, adjusting device is used for adjusting the angle of prism 6.
The hollow and lower extreme opening in inside of intermediate lever 3, all be provided with internal thread 10 in intermediate lever 3 and the bracing piece 4, the upper end of intermediate lever 3 and sill bar 2 all is provided with connection pad 7, the outer peripheral face of connection pad 7 be provided with internal thread 10 assorted external screw thread 11, the upper portion of intermediate lever 3 is located the open end of intermediate lever 3 of its top, the upper portion of sill bar 2 is located the open end of intermediate lever 3 of below, and the upper portion that is located the intermediate lever 3 of the top is located in the open end of bracing piece 4.
A plurality of the external diameter of intermediate lever 3 is by lower supreme grow gradually, and the external diameter that is located the intermediate lever 3 of below is greater than the external diameter of sill bar 2, and the external diameter that is located the intermediate lever 3 of top is less than the external diameter of bracing piece 4.
The center of the upper end face of the pointed end 1 is provided with a bolt 8, the pointed end 1 is connected to the lower end of the bottom rod 2 through the bolt 8 in a threaded mode, and threads on the bolt 8 are opposite to the rotating direction of an external thread 11 of the connecting disc 7.
Adjusting device includes supporting seat 9, level bubble, supporting seat 9 half surround in the recess 93 that is used for holding prism 6 is offered in the periphery of bracing piece 4, the outside, the left and right sides of bracing piece 4 all is provided with axis of rotation 12, two axis of rotation 12 rotate respectively connect in the left and right sides of connecting frame 5, level bubble connect in the upside of connecting frame 5.
The supporting seat 9 includes a supporting portion 91 and an installation portion 92, the installation portion 92 is embedded in the supporting portion 91, the prism 6 is located in the installation portion 92, an arc groove 94 is provided in the vertical direction of one side of the supporting portion 91 far away from the installation portion 92, the arc groove 94 partly surrounds the supporting rod 4, two the rotating shafts 12 are respectively connected to the left side and the right side of the supporting portion 91.
The utility model discloses a support frame, including connection frame 5, rotation axis 12, rotation groove 15, bracing piece 4, rotation groove 15, the last downside of connection frame 5 has all been seted up and has been rotated hole 14, bracing piece 4 is located rotate hole 14, two the left and right sides of connection frame 5 is provided with through-hole 13, two rotation axis 12 is located two through-holes 13 respectively, rotation groove 15 is all seted up to the lateral wall that rotates hole 14, be provided with ring board 16 in the rotation groove 15, the inner wall of ring board 16 connect in the outer peripheral face of bracing piece 4, connection frame 5 rotate connect in bracing piece 4, ring board 16.
The prism comprises a circular ring plate 16, a prism 6 and a connecting frame 5, wherein one end of the circular ring plate 16, which is far away from the prism 6, is provided with a first annular groove 17, the connecting frame 5 is provided with a second annular groove 18 matched with the first annular groove 17, a steel ball 19 is arranged in the first annular groove 17, a spring 20 is arranged in the second annular groove 18, one end of the spring 20 is connected to the second annular groove 18, and the other end of the spring is abutted to the steel ball 19.
And a sealing washer is arranged at the joint of the support rod 4 and the connecting frame 5, and a sealing washer is arranged at the joint of the circular ring plate 16 and the connecting frame 5.
The outer peripheral surfaces of the middle rod 3 and the bottom rod 2 are provided with scale marks.
The principle of the utility model is explained as follows:
at first with the tip part direct contact ground of tip 1 or lofting position surface, then rotate intermediate lever 3 and make it screw out from bracing piece 4, watch the scale mark simultaneously, make the centering rod reach roughly high, slowly rotate intermediate lever 3 again and make the centering rod reach the optimum height, then hold up bracing piece 4 with one hand, the position of connecting frame 5 regulation prism 6 is rotated to the other hand, go up lower rotation supporting seat 9 again, observe the level bubble during the rotation, the adjustment centering rod reaches vertical state, forward-looking survey crew can squat down and hold down the level bubble, release the target point position behind the assurance plummet. When the centering rod touches an obstacle to block the sight, the centering rod can be lifted.
Example 1:
referring to fig. 1 to 7, a concertina type centering rod, includes prism 6, connecting frame 5, bracing piece 4, sill bar 2, tip 1 and a plurality of intermediate lever 3, 1 vertical setting of tip and most advanced downward, sill bar 2 connect in the upper end of tip 1, it is a plurality of intermediate lever 3 is by supreme threaded connection in proper order down, 2 threaded connection in the intermediate lever 3 that is located the below, the inside hollow and lower extreme opening of bracing piece 4, 4 threaded connection in the intermediate lever 3 that is located the top of bracing piece 4, connecting frame 5 covers and locates the outer peripheral face of bracing piece 4, prism 6 pass through adjusting device connect in connecting frame 5, adjusting device is used for adjusting the angle of prism 6.
The hollow and lower extreme opening in inside of intermediate lever 3, all be provided with internal thread 10 in intermediate lever 3 and the bracing piece 4, the upper end of intermediate lever 3 and sill bar 2 all is provided with connection pad 7, the outer peripheral face of connection pad 7 be provided with internal thread 10 assorted external screw thread 11, the upper portion of intermediate lever 3 is located the open end of intermediate lever 3 of its top, the upper portion of sill bar 2 is located the open end of intermediate lever 3 of below, and the upper portion that is located the intermediate lever 3 of the top is located in the open end of bracing piece 4.
A plurality of the external diameter of intermediate lever 3 is by lower supreme grow gradually, and the external diameter that is located the intermediate lever 3 of below is greater than the external diameter of sill bar 2, and the external diameter that is located the intermediate lever 3 of top is less than the external diameter of bracing piece 4.
The center of the upper end face of the pointed end 1 is provided with a bolt 8, the pointed end 1 is connected to the lower end of the bottom rod 2 through the bolt 8 in a threaded mode, and threads on the bolt 8 are opposite to the rotating direction of an external thread 11 of the connecting disc 7.
Adjusting device includes supporting seat 9, level bubble, supporting seat 9 half surround in the recess 93 that is used for holding prism 6 is offered in the periphery of bracing piece 4, the outside, the left and right sides of bracing piece 4 all is provided with axis of rotation 12, two axis of rotation 12 rotate respectively connect in the left and right sides of connecting frame 5, level bubble connect in the upside of connecting frame 5.
Supporting seat 9 includes supporting part 91 and installation department 92, installation department 92 embedded in supporting part 91, prism 6 is located installation department 92, supporting part 91 has seted up circular arc groove 94 in keeping away from the vertical direction in one side of installation department 92, circular arc groove 94 half surround in bracing piece 4, two axis of rotation 12 connect respectively in the left and right sides of supporting part 91.
The utility model discloses a support frame, including connection frame 5, rotation axis 12, rotation groove 15, bracing piece 4, rotation groove 15, the last downside of connection frame 5 has all been seted up and has been rotated hole 14, bracing piece 4 is located rotate hole 14, two the left and right sides of connection frame 5 is provided with through-hole 13, two rotation axis 12 is located two through-holes 13 respectively, rotation groove 15 is all seted up to the lateral wall that rotates hole 14, be provided with ring board 16 in the rotation groove 15, the inner wall of ring board 16 connect in the outer peripheral face of bracing piece 4, connection frame 5 rotate connect in bracing piece 4, ring board 16.
The prism comprises a circular ring plate 16, a prism 6 and a connecting frame 5, wherein one end of the circular ring plate 16, which is far away from the prism 6, is provided with a first circular groove 17, the connecting frame 5 is provided with a second circular groove 18 matched with the first circular groove 17, a steel ball 19 is arranged in the first circular groove 17, a spring 20 is arranged in the second circular groove 18, one end of the spring 20 is connected to the second circular groove 18, and the other end of the spring is abutted to the steel ball 19.
And a sealing washer is arranged at the joint of the support rod 4 and the connecting frame 5, and a sealing washer is arranged at the joint of the circular ring plate 16 and the connecting frame 5.
The outer peripheral surfaces of the middle rod 3 and the bottom rod 2 are provided with scale marks.
Claims (10)
1. A concertina type centering rod which characterized in that: including prism (6), connecting frame (5), bracing piece (4), sill bar (2), tip (1) and a plurality of intermediate lever (3), vertical setting and most advanced downward in tip (1), sill bar (2) connect in the upper end of tip (1), it is a plurality of intermediate lever (3) are by supreme threaded connection in proper order down, sill bar (2) threaded connection is in intermediate lever (3) that are located the below, bracing piece (4) inside hollow and lower extreme opening, bracing piece (4) threaded connection is in intermediate lever (3) that are located the top, connecting frame (5) cover is located the outer peripheral face of bracing piece (4), prism (6) through adjusting device connect in connecting frame (5), adjusting device is used for adjusting the angle of prism (6).
2. A telescoping-type centering rod, as in claim 1, wherein: the hollow and lower extreme opening in inside of intermediate lever (3), all be provided with internal thread (10) in intermediate lever (3) and bracing piece (4), the upper end of intermediate lever (3) and sill bar (2) all is provided with connection pad (7), the outer peripheral face of connection pad (7) is provided with internal thread (10) assorted external screw thread (11), the upper portion of intermediate lever (3) is located the open end of intermediate lever (3) of its top, the upper portion of sill bar (2) is located the open end of intermediate lever (3) of below, and the upper portion that is located intermediate lever (3) of the top is located in the open end of bracing piece (4).
3. A telescoping centering rod as in claim 2, wherein: a plurality of the external diameter of intermediate lever (3) is by lower supreme grow gradually, and the external diameter that is located intermediate lever (3) of below is greater than the external diameter of bottom bar (2), and the external diameter that is located intermediate lever (3) of the top is less than the external diameter of bracing piece (4).
4. A telescoping centering rod as in claim 2, wherein: the bolt (8) is arranged at the center of the upper end face of the tip (1), the tip (1) is in threaded connection with the lower end of the bottom rod (2) through the bolt (8), and threads on the bolt (8) are opposite to the rotating direction of the external threads (11) of the connecting disc (7).
5. A telescoping-type centering rod, as in claim 1, wherein: adjusting device includes supporting seat (9), level bubble, supporting seat (9) half surround in recess (93) that are used for holding prism (6) are offered in the periphery of bracing piece (4), the outside, the left and right sides of bracing piece (4) all is provided with axis of rotation (12), two axis of rotation (12) rotate respectively connect in the left and right sides of connecting frame (5), level bubble connect in the upside of connecting frame (5).
6. A telescoping-type centering rod, as in claim 5, wherein: supporting seat (9) include supporting part (91) and installation department (92), installation department (92) embedded in supporting part (91), prism (6) are located installation department (92), circular arc groove (94) have been seted up in the vertical direction of one side that installation department (92) were kept away from in supporting part (91), circular arc groove (94) half surround in bracing piece (4), two axis of rotation (12) connect respectively in the left and right sides of supporting part (91).
7. A telescoping-type centering rod, as in claim 5, wherein: the utility model discloses a lamp holder, including connecting frame (5), rotation hole (14), bracing piece (4), rotation axis (12) and ring plate (16), connecting frame (5) are the rectangle frame, the left and right sides of connecting frame (5) is provided with through-hole (13), two rotation axis (12) are located two through-holes (13) respectively, rotation hole (14) have all been seted up to the upper and lower side of connecting frame (5), bracing piece (4) are located rotate hole (14) in, two the lateral wall that rotates hole (14) has all been seted up and has been rotated groove (15), be provided with ring plate (16) in rotation groove (15), the inner wall of ring plate (16) connect in the outer peripheral face of bracing piece (4), connecting frame (5) rotate connect in bracing piece (4), ring plate (16).
8. A telescoping-type centering rod, as in claim 7, wherein: the prism is characterized in that one end, far away from the prism (6), of the circular ring plate (16) is provided with a first annular groove (17), the connecting frame (5) is provided with a second annular groove (18) matched with the first annular groove (17), steel balls (19) are arranged in the first annular groove (17), a spring (20) is arranged in the second annular groove (18), one end of the spring (20) is connected to the second annular groove (18), and the other end of the spring is abutted to the steel balls (19).
9. A telescoping-type centering rod, as in claim 7, wherein: the joint of the support rod (4) and the connecting frame (5) is provided with a sealing washer, and the joint of the circular ring plate (16) and the connecting frame (5) is provided with a sealing washer.
10. A telescoping-type centering rod, as in claim 1, wherein: the outer peripheral surfaces of the middle rod (3) and the bottom rod (2) are provided with scale marks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222094269.3U CN217877709U (en) | 2022-08-09 | 2022-08-09 | Telescopic centering rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222094269.3U CN217877709U (en) | 2022-08-09 | 2022-08-09 | Telescopic centering rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217877709U true CN217877709U (en) | 2022-11-22 |
Family
ID=84075610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222094269.3U Active CN217877709U (en) | 2022-08-09 | 2022-08-09 | Telescopic centering rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217877709U (en) |
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2022
- 2022-08-09 CN CN202222094269.3U patent/CN217877709U/en active Active
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