CN218546073U - Hanging hammer type bridge deflection measuring device - Google Patents

Abstract

The utility model discloses a hammer type bridge deflection measuring device, including hammer device (1), stop device (2), measuring device (3), horizontal bottom plate (4), stop device (2) have been designed to hammer device below, and measuring device is in on the pole wall of stop device (2), and horizontal bottom plate (4) are in the below of whole device. The utility model provides an among the bridge load test, the beam slab flexural deformation's the measurement degree of difficulty is big, and the long problem of high altitude construction time when the deflection measurement, has reduced personnel high altitude construction's safe risk, but the change of while continuous observation percentage table gives comparatively accurate deflection value.

Description

Hanging hammer type bridge deflection measuring device

Technical Field

The utility model relates to a deflection measurement technical field, concretely relates to hanging hammer formula bridge deflection measurement device.

Background

The bridge is used as an important traffic infrastructure for national economy and social development and national defense construction, and the significance of ensuring the construction quality and the operation safety of the bridge is great, so that the regular safety detection of the bridge is very necessary. The bridge deflection is the bending deformation of the beam when the beam is stressed or the non-uniform temperature changes, and the centroid of the cross section of the beam body is displaced along the line vertical to the axis. The deflection deformation of the bridge is an important parameter for evaluating the health condition of the bridge, and the static and dynamic deflection values of the bridge need to be accurately measured in the aspects of bridge detection, dangerous bridge reconstruction, new bridge acceptance and the like. Once the deflection of the bridge exceeds the threshold range or cannot be restored to the original position after being subjected to external force, the potential safety hazard of the bridge can be judged.

The utility model is used for bridge deflection measurement, when bridge load test, superstructure beam slab is the difficult point problem in this field always in mid-span deflection measurement, and there is the operational difficulty traditional to beam slab mid-span deflection measurement mode, and operating cost is high, simultaneously owing to need measure the bridge bottom, need arrange personnel to carry out the reading in the high altitude, consequently there is the personal safety danger of high altitude to reading personnel.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hammer type bridge amount of deflection measuring device hangs to it is big to solve the measurement degree of difficulty among the prior art, and the work risk is high, measures with high costs technical problem.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of hammer type bridge deflection measuring device, including the hammer device, the hammer device is connected with stop device, the last measuring device that is provided with of stop device, stop device still is connected with horizontal bottom plate.

Optionally or preferably, the plumb device includes perpendicular line and plumb bob, passes through expansion bolts between perpendicular line and the plumb bob and connects, the perpendicular line is the nylon rope.

Optionally or preferably, the limiting device comprises a limiting cylinder, a supporting rod and a rod thread, the limiting cylinder is in sliding connection with the hanging hammer in a matched mode, the supporting rod is arranged on the lower portion of the limiting cylinder, and the rod thread is further arranged on the lower portion of the supporting rod.

Optionally or preferably, the measuring device comprises a displacement dial indicator support and a displacement dial indicator, the displacement dial indicator support is arranged on the wall of the supporting rod, and the displacement dial indicator is mounted on the displacement dial indicator support in a coupling mode.

Optionally or preferably, the horizontal bottom plate is further provided with a plurality of adjusting bolts, nut holes, leveling bubbles and a handle, the adjusting bolts are located at four corners of the horizontal bottom plate, the nut holes are located in the middle of the horizontal bottom plate (4), and the leveling bubbles are evenly distributed on the horizontal bottom plate.

Alternatively or preferably, the horizontal bottom plate is in threaded fit connection with the rod on the support rod through a nut hole.

Based on the technical scheme, the embodiment of the utility model provides a under the conditional condition, set up stop device at the bridge bottom, measure the amount of deflection and reduce the measurement degree of difficulty; utility model discloses an adopt the measuring device of hanging hammer bridge amount of deflection, the amount of deflection of effectively measuring beam slab has alleviateed the work risk, has reduced the measurement cost simultaneously.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the drop hammer apparatus;

FIG. 3 is a schematic view of a measuring device;

FIG. 4 is a schematic view of a horizontal floor device;

in the figure: 1. a hammer device; 2. a limiting device; 3. a jacket measuring device; 4. a horizontal floor; 5. a vertical line; 6. hanging a hammer; 7. a limiting cylinder; 8. a support bar; 9. a rod thread; 10. a displacement dial indicator bracket; 11. a displacement dial indicator; 12. adjusting the bolt; 13. a nut hole; 14. leveling air bubbles; 15. a handle.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for clarity and understanding of the technical contents. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component.

The utility model provides a hammer type bridge deflection measuring device, including hammer device 1, hammer device 1 is connected with stop device 2, stop device 2 is last to be provided with measuring device 3, stop device 2 still is connected with horizontal bottom plate 4.

The plumb device 1 is composed of a plumb line 5 and a plumb bob 6, the plumb line is made of nylon ropes, the upper end of the plumb line is connected to the midspan position at the bottom end of the bridge, and the lower end of the plumb bob is connected with the plumb bob 6. Stop device 2 is fixed at 6 lower extremes of sash weight, and stop device 2 comprises spacing drum 7, bracing piece 8, pole screw thread 9, receives the influence of horizontal wind for reducing the nylon rope, has increased spacing drum 7 and has fixed, and bracing piece 8 is used for supporting measuring device 3. The measuring device 3 consists of a displacement dial indicator support 10 and a displacement dial indicator 11, wherein the displacement dial indicator support 10 is arranged on a supporting rod and used for supporting the displacement dial indicator 11, and when the device works, the deflection is directly read by the displacement dial indicator 11. The horizontal bottom plate 4 is composed of adjusting bolts 12, nut holes 13, leveling air bubbles 14 and a handle 15, the horizontal bottom plate 4 is connected with the nut holes 13 in the horizontal bottom plate 4 through rod threads 9 at the bottom ends of supporting rods 8, the leveling air bubbles 14 are kept horizontal through the adjusting bolts 12, when the leveling air bubbles 14 are horizontal, the horizontal bottom plate 4 reaches a horizontal state, the measuring result is the most standard, and the handle 15 serves as a handle for taking and placing the horizontal bottom plate 4 and is convenient to carry.

As an alternative embodiment, the plumb bob device 1 comprises a plumb line 5 and a plumb bob 6, the plumb line 5 is connected with the plumb bob 6 through an expansion bolt, and the plumb line 5 is a nylon rope.

As an optional embodiment, the limiting device 2 comprises a limiting cylinder 7, a supporting rod 8 and a rod thread 9, the limiting cylinder 7 is in fit sliding connection with the hanging hammer 6, the supporting rod 8 is arranged at the lower part of the limiting cylinder 7, and the rod thread 9 is further arranged at the lower part of the supporting rod 8.

As an optional implementation manner, the measuring device 3 includes a displacement dial indicator support 10 and a displacement dial indicator 11, the displacement dial indicator support 10 is disposed on the rod wall of the support rod 8, and the displacement dial indicator 11 is mounted on the displacement dial indicator support 11 in a coupling manner.

As an alternative embodiment, a plurality of adjusting bolts 12, nut holes 13, leveling air bubbles 14 and handles 15 are further disposed on the horizontal bottom plate 4, the adjusting bolts 12 are located at four corners of the horizontal bottom plate 4, the nut holes 13 are located in the middle of the horizontal bottom plate 4, and the leveling air bubbles 14 are evenly distributed on the horizontal bottom plate 4.

As an alternative embodiment, the horizontal base plate 4 is connected to the rod thread 9 on the support rod 8 by means of a nut hole 13.

The utility model provides a pair of hammer-type bridge amount of deflection measuring device's theory of operation does: in order to facilitate the degree measurement in the bridge deflection test, a non-extensible nylon rope is adopted, the upper end of the nylon rope is connected to the midspan position of the bottom of a bridge body, a hanging hammer 6 is hung at the lower part of the nylon rope, the bottom end of the hanging hammer 6 is connected with the tail end of a measuring rod of a displacement dial indicator 11, the displacement dial indicator 11 is set to zero before the test is started, then the hanging hammer is loaded, the degree of the dial indicator at each stage in the loading process is respectively read, in order to reduce deflection transmission errors caused by load factors such as wind and the like of the nylon rope, a limiting cylinder 7 is fixed below the hanging hammer to keep the transverse stability of the hanging hammer 6 during the measurement, and meanwhile, in order to keep the vertical stability of the limiting cylinder 7, a horizontal bottom plate 4 below the limiting cylinder needs to be kept horizontal, 4 leveling bubbles 14 are installed on the horizontal bottom plate 4, and when the leveling bubbles 14 are all in the middle position, the horizontal bottom plate 4 can be considered to be in a horizontal state, and the limiting cylinder is in a vertical state.

The utility model provides a pair of hammer type bridge deflection measuring device's work operation specifically does:

a nylon rope is connected to the midspan position of the bottom of the bridge, a hanging hammer 6 is vertically connected downwards, after a displacement dial indicator 11 is set to zero, a limiting cylinder 7 is adjusted to enable the device to be in a roughly horizontal state, then a leveling bubble 14 on a horizontal bottom plate 4 is adjusted, when the leveling bubble 14 deviates to the left, an adjusting bolt 12 on the left side of the horizontal bottom plate 4 can be tightened to enable the leveling bubble 14 to be kept in the middle, and an adjusting bolt 12 on the right side of the horizontal bottom plate 4 can be loosened to enable the leveling bubble 14 to be kept in the middle; when the leveling bubble 14 is biased to the right, the adjusting bolt 12 on the right side of the horizontal bottom plate 4 can be tightened to keep the leveling bubble 14 in the middle, and the adjusting bolt 12 on the left side of the horizontal bottom plate 4 can be loosened to keep the leveling bubble 14 in the middle. When the leveling bubble 14 is kept in the middle, the test requirement is met, and the degree of the displacement dial indicator 11 is directly read as a measurement result.

Through the practical use, when the hanging hammer type bridge deflection measuring device works, the practicability is good, the installation is simple, the structure is simple, the manufacturing cost is low, the later maintenance cost is low, and the applicability is good.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims (6)

1. The utility model provides a hammer formula bridge amount of deflection measuring device which characterized in that: the device comprises a hanging hammer device (1), wherein the hanging hammer device (1) is connected with a limiting device (2), the limiting device (2) is provided with a measuring device (3), and the limiting device (2) is further connected with a horizontal bottom plate (4).

2. The hanging hammer type bridge deflection measuring device according to claim 1, wherein: plumb line (5) and plumb bob (6) are drawn together to plumb bob device (1), connect through expansion bolts between plumb line (5) and plumb bob (6), plumb line (5) are the nylon rope.

3. The hanging hammer type bridge deflection measuring device according to claim 1, which is characterized in that: the limiting device (2) comprises a limiting cylinder (7), a supporting rod (8) and a rod thread (9), the limiting cylinder (7) is in sliding connection with the hanging hammer (6) in a matched mode, the supporting rod (8) is arranged on the lower portion of the limiting cylinder (7), and the rod thread (9) is further arranged on the lower portion of the supporting rod (8).

4. The hanging hammer type bridge deflection measuring device according to claim 1, wherein: the measuring device (3) comprises a displacement dial indicator support (10) and a displacement dial indicator (11), wherein the displacement dial indicator support (10) is arranged on the wall of the supporting rod (8), and the displacement dial indicator (11) is installed on the displacement dial indicator support (10) in a coupling mode.

5. The hanging hammer type bridge deflection measuring device according to claim 1, which is characterized in that: the leveling device is characterized in that the horizontal bottom plate (4) is further provided with a plurality of adjusting bolts (12), nut holes (13), leveling air bubbles (14) and a lifting handle (15), the adjusting bolts (12) are located at four corners of the horizontal bottom plate (4), the nut holes (13) are located in the middle of the horizontal bottom plate (4), and the leveling air bubbles (14) are evenly distributed on the horizontal bottom plate (4).

6. The hanging hammer type bridge deflection measuring device according to claim 1, wherein: the horizontal bottom plate (4) is connected with the rod thread (9) on the support rod (8) in a matching way through the nut hole (13).

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