CN211668427U - Large plate girder deflection measuring device - Google Patents

Large plate girder deflection measuring device Download PDF

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Publication number
CN211668427U
CN211668427U CN201921741914.8U CN201921741914U CN211668427U CN 211668427 U CN211668427 U CN 211668427U CN 201921741914 U CN201921741914 U CN 201921741914U CN 211668427 U CN211668427 U CN 211668427U
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China
Prior art keywords
ruler
roof beam
big board
detachable
deflection
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CN201921741914.8U
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Chinese (zh)
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周沁乔
钱国忠
周俊
武闯
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Special Equipment Safety Supervision Inspection Institute of Jiangsu Province
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Special Equipment Safety Supervision Inspection Institute of Jiangsu Province
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Abstract

The utility model discloses a big board roof beam amount of deflection measuring device and amount of deflection measuring method relates to big board roof beam amount of deflection measuring technical field, including the magnetism base, the upper end middle part of magnetism base is provided with can dismantle the stand, the upper end surface that can dismantle the stand is provided with pipe end closure lid, one side that can dismantle the stand is provided with can dismantle the spreader. The utility model discloses can be convenient fix on the big board roof beam, and be connected with miniature linear guide's slider through the mark color ring, rely on gravity slider freely to glide, finally the overlap joint is at the upper surface of big board, and the accessible is looked glasses and is observed mark color ring and laser horizontal line position on standard steel ruler, realizes measuring the relative height of big board roof beam, through measured data, calculates out big board roof beam amount of deflection, and establishes five or more than five measuring points, evenly distributes on big board roof beam, carries out multiple measurements to prove that the test is qualified, the utility model discloses simple and convenient, accurate detection goes out big board roof beam amount of deflection, possesses certain use prospect.

Description

Large plate girder deflection measuring device
Technical Field
The utility model relates to a big board roof beam deflection measurement technical field specifically is a big board roof beam deflection measurement device.
Background
The deflection is the linear displacement of the axis of the rod piece in the direction vertical to the axis or the linear displacement of the middle surface of the plate shell in the direction vertical to the middle surface when the stress or the non-uniform temperature changes, and the deflection of the large plate beam refers to the maximum deformation of the large plate beam under the load action, and generally refers to the vertical direction, namely the vertical deformation of the large plate beam.
The existing deflection measuring device is simple in structural design, cannot be conveniently and fast fixed on a large plate girder, and a measurement transmitting structure is often shielded by a side structure of the large plate girder or an obstacle near the large plate girder, so that the measurement is troublesome, and the deflection measuring device for the large plate girder is required to be designed aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a big board roof beam amount of deflection measuring device can solve the unable convenient fixing of protrusion in the above-mentioned background art on the big board roof beam, often by the problem that big board roof beam avris mechanism or near barrier sheltered from.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model discloses a large plate girder deflection measuring device, which comprises a magnetic base, wherein the middle part of the upper end of the magnetic base is provided with a detachable upright post, the outer surface of the upper end of the detachable upright post is provided with a pipe end sealing cover, one side of the detachable upright post is provided with a detachable cross post, a post fixing clamp is arranged between the detachable upright post and the detachable cross post, one side of the detachable cross post is provided with a quick screwing handle, one end of the detachable cross post is provided with a rectangular slide bar, the outer surface of the rectangular slide bar is provided with a micro linear guide rail, one side of the rectangular slide bar is provided with a marking color ring, one end of the rectangular slide bar is provided with a joint bearing, the middle part of the joint bearing is provided with a stainless steel shaft, the outer surface of the upper end of the stainless steel shaft is provided with, the outer surface of the upper end of the ruler placing table is provided with a ruler clamping seat, the middle of the ruler placing table is provided with a symmetrical level meter, and the middle of the ruler clamping seat is provided with a standard steel ruler.
Preferably, one side of the marking color ring is provided with a fixed rod, the outer surface of the rectangular slide rod is connected with the outer surface of the fixed rod in a sliding mode through a miniature linear guide rail, and the outer surface of the lower end of the ruler placing table is fixedly connected with the outer surface of the upper end of the standard plumb bob through a stainless steel shaft.
Preferably, the magnetism base adopts the neodymium iron boron strong magnet, can dismantle the stand and be 120mm with the column length that can dismantle the spreader, external diameter 10mm, the material is stainless steel pipe.
Preferably, the length of the guide rail of the miniature linear guide rail is 105mm, the distance between the ends is 7.5mm, and the maximum allowable circumferential inclination angle of the joint bearing is 30 degrees.
Has the advantages that: the utility model discloses can be convenient fix on the big board roof beam, the accessible is looked glasses and is observed the position of mark color ring on standard steel ruler, realizes measuring the amount of deflection of big board roof beam, and establishes five or more than five measuring points, is located big board roof beam amount of deflection initial point, mid point and terminal point respectively, carries out multiple measurements to it is qualified to prove the test, the utility model discloses simple and convenient, accurate detection goes out big board roof beam amount of deflection, accessible the utility model discloses simple and convenient, accurate detection goes out big board roof beam amount of deflection.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
fig. 3 is a schematic structural diagram of a standard plumb bob 10 according to the present invention;
fig. 4 is a schematic structural diagram of the magnetic base 1 of the present invention;
fig. 5 is a schematic structural diagram of the middle ruler placing table 12 of the present invention;
fig. 6 is a schematic diagram of an allowable inclination angle of the middle joint bearing 13 according to the present invention.
In the figure: 1. a magnetic base; 2. the upright posts can be disassembled; 3. a tube end closure; 4. the transverse column can be disassembled; 5. a column fixing clamp; 6. quickly screwing a handle; 7. a standard steel rule; 8. marking a color ring; 9. a stainless steel shaft; 10. a standard plumb bob; 11. a micro linear guide rail; 12. a ruler placement table; 13. a knuckle bearing; 14. a ruler clamping seat; 15. a symmetrical level; 16. a rectangular slide bar.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in the figures 1-6 of the drawings,
the utility model discloses a large plate girder deflection measuring device, which comprises a magnetic base 1, wherein the middle part of the upper end of the magnetic base 1 is provided with a detachable upright post 2, the outer surface of the upper end of the detachable upright post 2 is provided with a pipe end sealing cover 3, one side of the detachable upright post 2 is provided with a detachable cross post 4, an upright post fixing clamp 5 is arranged between the detachable upright post 2 and the detachable cross post 4, one side of the detachable cross post 4 is provided with a quick screwing handle 6, one end of the detachable cross post 4 is provided with a rectangular slide bar 16, the outer surface of the rectangular slide bar 16 is provided with a micro linear guide rail 11, one side of the rectangular slide bar 16 is provided with a marking color ring 8, one end of the rectangular slide bar 16 is provided with a joint bearing 13, the middle part of the joint bearing (13) is provided with a stainless steel shaft 9, the outer surface of the upper, the outer surface of the lower end of the stainless steel shaft 9 is provided with a standard plumb bob 10, the outer surface of the upper end of the ruler holding table 12 is provided with a ruler clamping seat 14, the middle of the ruler holding table 12 is provided with a symmetrical level meter 15, and the middle of the ruler clamping seat 14 is provided with a standard steel ruler 7.
A fixing rod is arranged on one side of the marking color ring 8, the outer surface of the rectangular sliding rod 16 is connected with the outer surface of the fixing rod in a sliding mode through a miniature linear guide rail 11, and the outer surface of the lower end of the ruler placing table 12 is fixedly connected with the outer surface of the upper end of the standard plumb bob 10 through a stainless steel shaft 9.
Magnetism base 1 adopts the neodymium iron boron strong magnet, can dismantle stand 2 and can dismantle the post length of spreader 4 and be 120mm, external diameter 10mm, the material is nonrust steel pipe.
The length of the guide rail of the miniature linear guide rail 11 is 105mm, the distance between the ends is 7.5mm, and the maximum circumferential inclination angle allowed by the joint bearing 13 is 30 degrees.
When the deflection of the large plate girder is measured, five or more than five measuring points are required to be set and are respectively positioned at the initial point, the middle point and the end point of the deflection of the large plate girder, and the measurement is carried out for a plurality of times so as to ensure that the test is qualified.
The utility model discloses a theory of operation and use flow: the utility model mainly comprises a magnetic base 1, a detachable upright post 2, a pipe end sealing head cover 3, a detachable cross post 4, an upright post fixing clamp 5, a quick screwing handle 6, a standard steel ruler 7, a marking color ring 8, a stainless steel shaft 9, a standard plumb bob 10, a miniature linear guide rail 11, a ruler placing table 12, a joint bearing 13, a ruler clamping seat 14, a symmetrical level gauge 15 and a rectangular slide bar 16, wherein the device is taken to a large plate girder needing to be measured and is fixedly arranged on the large plate girder through the magnetic base 1; mounting a detachable upright post 2, a detachable cross post 4, an upright post fixing clamp 5, a quick screwing handle 6, a standard steel ruler 7, a marking color ring 8, a stainless steel shaft 9, a standard plumb bob 10, a ruler placing table 12, a joint bearing 13 and a rectangular slide bar 16 at corresponding positions on the device, and finishing assembly of the device; the detachable upright post 2 and the detachable cross post 4 are fixed through an upright post fixing clamp 5, the included angle of 90 degrees is kept, and the surface separation distance of the detachable upright post 2 can be adjusted by adjusting the upright post fixing clamp 5 through a quick-screwing handle 6; the length ratio of the upper segment to the lower segment of the stainless steel shaft is 1 through the connection of the stainless steel shaft 9 and the knuckle bearing 13: 3, the total length is 40mm, and the straight ruler placing table 12 is made to be horizontal to the ground plane through the dead weight of the standard plumb bob 10; the marking color ring 8 is connected with a slide block of a marking color ring 11 of the miniature linear guide rail, and the slide block freely slides downwards depending on the gravity and is finally lapped on the upper surface of the large plate; at the moment, the position of the marking color ring 8 on the standard steel ruler 7 can be observed through a pair of observation glasses, so that the deflection of the large plate girder can be measured; when the deflection of the large plate girder is measured, five or more than five measuring points are set and are respectively positioned at the initial point, the middle point and the end point of the deflection of the large plate girder, and the measurement is carried out for a plurality of times; the existing laser graticule can measure deflection by an instrument, and simultaneously, the leveling measurement can be carried out by the coordination of laser emitted by the laser graticule and a device, so that the height of the large plate girder and the height of the device at five measuring points can be measured; can be when the instrumental survey amount of deflection through current infrared distance meter, accessible laser distance meter transmission laser carries out length measurement with the device cooperation, can measure the length of big board roof beam itself and the distance between five measuring points to when instruments such as using laser striping machine carry out the height measurement, standard steel rule 7 can also act as the effect of levelling rod, has certain use prospect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a big plate girder amount of deflection measuring device, includes magnetism base (1), its characterized in that: the magnetic base is characterized in that a detachable upright post (2) is arranged in the middle of the upper end of the magnetic base (1), a tube end sealing cover (3) is arranged on the outer surface of the upper end of the detachable upright post (2), a detachable cross post (4) is arranged on one side of the detachable upright post (2), an upright post fixing clamp (5) is arranged between the detachable upright post (2) and the detachable cross post (4), a quick screwing handle (6) is arranged on one side of the detachable cross post (4), a rectangular sliding rod (16) is arranged at one end of the detachable cross post (4), a miniature linear guide rail (11) is arranged on the outer surface of the rectangular sliding rod (16), a marking color ring (8) is arranged on one side of the rectangular sliding rod (16), a joint bearing (13) is arranged at one end of the rectangular sliding rod (16), and a stainless steel shaft (9, the upper end surface of stainless steel axle (9) is provided with ruler holding table (12), the lower extreme surface of stainless steel axle (9) is provided with standard plummet (10), the upper end surface of ruler holding table (12) is provided with ruler cassette (14), the middle part of ruler holding table (12) is provided with symmetry spirit level (15), the middle part of ruler cassette (14) is provided with standard steel ruler (7).
2. The large plate girder deflection measuring device according to claim 1, characterized in that: one side of the marking color ring (8) is provided with a fixed rod, the outer surface of the rectangular sliding rod (16) is connected with the outer surface of the fixed rod in a sliding mode through a miniature linear guide rail (11), and the outer surface of the lower end of the ruler placing table (12) is fixedly connected with the outer surface of the upper end of the standard plumb bob (10) through a stainless steel shaft (9).
3. The large plate girder deflection measuring device according to claim 1, characterized in that: magnetism base (1) adopts the neodymium iron boron strong magnet, can dismantle stand (2) and the column length of dismantling spreader (4) and be 120mm, external diameter 10mm, the material is nonrust steel pipe.
4. The large plate girder deflection measuring device according to claim 1, characterized in that: the length of the guide rail of the miniature linear guide rail (11) is 105mm, the distance between the ends is 7.5mm, and the maximum circumferential inclination angle allowed by the joint bearing (13) is 30 degrees.
CN201921741914.8U 2019-10-17 2019-10-17 Large plate girder deflection measuring device Active CN211668427U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921741914.8U CN211668427U (en) 2019-10-17 2019-10-17 Large plate girder deflection measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921741914.8U CN211668427U (en) 2019-10-17 2019-10-17 Large plate girder deflection measuring device

Publications (1)

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CN211668427U true CN211668427U (en) 2020-10-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110617757A (en) * 2019-10-17 2019-12-27 江苏省特种设备安全监督检验研究院 Large plate girder deflection measuring device and deflection measuring method
CN113884056A (en) * 2021-10-14 2022-01-04 中铁大桥局第九工程有限公司 Measuring method for large-span continuous beam hanging basket cantilever cast-in-place beam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110617757A (en) * 2019-10-17 2019-12-27 江苏省特种设备安全监督检验研究院 Large plate girder deflection measuring device and deflection measuring method
CN110617757B (en) * 2019-10-17 2024-04-26 江苏省特种设备安全监督检验研究院 Deflection measuring device and deflection measuring method for large plate girder
CN113884056A (en) * 2021-10-14 2022-01-04 中铁大桥局第九工程有限公司 Measuring method for large-span continuous beam hanging basket cantilever cast-in-place beam
CN113884056B (en) * 2021-10-14 2024-05-14 中铁大桥局第九工程有限公司 Method for measuring large-span continuous beam hanging basket cantilever cast-in-situ beam

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