CN220270387U

CN220270387U - Structural deflection measuring instrument

Info

Publication number: CN220270387U
Application number: CN202321987184.6U
Authority: CN
Inventors: 吉华龙; 黄健; 邓光明
Original assignee: Centre Testing International Group Co ltd; Huace Engineering Testing Co ltd
Current assignee: Centre Testing International Group Co ltd; Huace Engineering Testing Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2023-12-29
Anticipated expiration: 2033-07-26

Abstract

The utility model provides a structural deflection measuring instrument which comprises a laser emitter, a laser receiving plate and a longitudinal connecting assembly, wherein the laser receiving plate is arranged towards the laser emitter and used for receiving laser beams, and the longitudinal connecting assembly is connected to the top of the laser receiving plate and used for connecting the laser receiving plate to the inner top surface of a building structure; the longitudinal connecting assembly comprises a telescopic sleeve and an extension rod, wherein the inner wall of the telescopic sleeve is provided with a sliding groove and a plurality of limiting grooves, the extension rod is provided with a sliding block which is in sliding connection with the sliding groove, and the sliding block can circumferentially rotate into the limiting grooves. According to the structural deflection measuring instrument provided by the utility model, the laser receiving plate is connected below the building structure through the longitudinal connecting component, when the building structure deforms to generate certain deflection, the laser receiving plate and the longitudinal connecting component synchronously move downwards, the position of a laser beam falling on the laser receiving plate changes, the deflection change condition of the building structure can be known, and the structural operation mode is simple, so that the accuracy of monitoring the deflection of the building structure is ensured.

Description

Structural deflection measuring instrument

Technical Field

The utility model belongs to the technical field of deflection measurement, and particularly relates to a structural deflection measuring instrument.

Background

Deflection of a steel structure or a concrete structure is an important parameter for engineering structure checking calculation, so that deflection observation of the steel structure or the concrete structure, particularly long-term deflection observation, is particularly important. Meanwhile, due to the high requirement on the observation precision, large structural space distance and other reasons, the existing manual deflection detection mode is difficult to adapt to the requirements of complex environments and long-term observation, the precision of deflection monitoring is influenced, and further the construction quality of engineering is difficult to ensure.

Disclosure of Invention

The utility model aims to provide a structural deflection measuring instrument which can accurately monitor a building structure, improves the accuracy of deflection monitoring and improves the construction quality of engineering.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a structure deflection measuring instrument, including laser emitter, towards the laser emitter setting in order to receive the laser beam the laser receiving board and connect in order to connect the laser receiving board to the longitudinal connection subassembly of building structure interior top surface at laser receiving board top;

the longitudinal connecting assembly comprises a telescopic tube connected to the top of the laser receiving plate and extending upwards, and an extension rod connected to the telescopic tube in a sliding mode, the upper end of the extension rod is connected with the inner top surface of the building structure, a sliding groove with an axis extending and a plurality of limiting grooves which are communicated with the sliding groove respectively and extend circumferentially are formed in the inner wall of the telescopic tube, a sliding block connected to the sliding groove in a sliding mode is arranged on the extension rod, and the sliding block can circumferentially rotate to the limiting grooves to lock the axial positions of the telescopic tube and the extension rod.

In one possible implementation manner, the plurality of limiting grooves are all located on the same side of the sliding groove, two sliding blocks are arranged, the projections of the two sliding blocks on the axis of the extending rod are overlapped, and the distance between every two adjacent sliding grooves is equal to the distance between every two adjacent sliding blocks.

In one possible implementation manner, the width of one end of the limiting groove, which is far away from the sliding groove, in the up-down direction is gradually reduced, and flexible rubber layers are respectively arranged on the groove top wall and the groove bottom wall of the limiting groove.

In some embodiments, the upper portion periphery of extension rod is equipped with the portion of gripping that outwards periphery is protruding, is equipped with anti-skidding layer on the periphery wall of portion of gripping, and the top of portion of gripping is equipped with magnetism and inhales piece or couple.

In one possible implementation, the edge of the laser receiving plate is provided with a frame extending towards one side of the laser transmitter, and the outer side of the frame is provided with a dustproof transparent plate.

In one possible implementation, a side of the laser receiving board facing the laser transmitter is provided with grid graduations and positioning base points.

In one possible implementation manner, the top of the frame is provided with an installation shaft extending upwards, the lower end of the telescopic tube is provided with a lower end plate rotationally sleeved on the periphery of the installation shaft, the lower end plate is provided with an adjusting hole which is penetrated up and down for the installation shaft to pass through, and the upper end of the installation shaft is provided with a limiting plate positioned above the lower end plate.

In one possible implementation, a locking bolt is radially penetrating the peripheral wall of the telescopic tube, and the locking bolt can be abutted on the peripheral wall of the limiting plate to lock the circumferential positions of the mounting shaft and the telescopic tube.

In some embodiments, the inner peripheral wall of the adjustment aperture is provided with a friction layer that is a sliding fit with the outer peripheral wall of the mounting shaft.

In one possible implementation, the bottom of the laser transmitter is provided with a stabilizing base, the stabilizing base is of a frustum structure, and the peripheral wall of the stabilizing base is further provided with a balancing weight arranged on one side far away from the laser transmitter.

Compared with the prior art, the scheme that this application embodiment shows, the structure deflection measuring apparatu that this application provided, connect laser receiving board in building structure's below through indulging coupling assembling, utilize laser emitter to laser receiving board transmission laser beam, when building structure appears warping and produces certain amount of deflection, laser receiving board and indulge coupling assembling and move down in step, laser beam can appear changing in the position of falling on laser receiving board this moment, the deflection change condition of building structure can be known, the form that above-mentioned extension rod and telescopic tube combine, be convenient for carry out laser receiving board initial position's regulation to laser emitter, the convenience of extension rod and telescopic tube initial positioning has been improved, building structure deflection monitoring's precision has been guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a structural deflection measuring instrument according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure of I in FIG. 1 according to an embodiment of the present utility model;

fig. 3 is a schematic view illustrating a structure of the extension rod, the telescopic sleeve and the laser receiving plate in fig. 1 according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1. a laser emitter; 11. a stabilization base; 12. balancing weight; 2. a laser receiving plate; 21. a frame; 22. a dust-proof transparent plate; 23. a grid scale; 24. positioning a base point; 25. a mounting shaft; 26. a limiting plate; 27. a locking bolt; 3. an extension rod; 31. a grip portion; 32. a magnetic attraction block; 33. a slide block; 4. a telescoping tube; 41. a chute; 42. a limit groove; 43. a lower end plate; 44. an adjustment aperture; 45. a friction layer; 5. building structures.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 3, a structural deflection measuring apparatus according to the present utility model will be described. The structure deflection measuring instrument comprises a laser emitter 1, a laser receiving plate 2 arranged towards the laser emitter 1 for receiving laser beams and a longitudinal connecting component connected to the top of the laser receiving plate 2 for connecting the laser receiving plate 2 to the inner top surface of the building structure 5;

the longitudinal connecting assembly comprises a telescopic tube 4 connected to the top of the laser receiving plate 2 and extending upwards, and an extension rod 3 connected to the telescopic tube 4 in a sliding mode, the upper end of the extension rod 3 is connected with the inner top surface of the building structure 5, a sliding groove 41 with an axis extending and a plurality of limiting grooves 42 which are respectively communicated with the sliding groove 41 and extend circumferentially are formed in the inner wall of the telescopic tube 4, a sliding block 33 connected to the sliding groove 41 in a sliding mode is arranged on the extension rod 3, and the sliding block 33 can circumferentially rotate to the limiting grooves 42 to lock the axial positions of the telescopic tube 4 and the extension rod 3.

Compared with the prior art, the structural deflection measuring instrument provided by the embodiment is characterized in that the laser receiving plate 2 is connected below the building structure 5 through the longitudinal connecting component, the laser transmitter 1 is utilized to transmit laser beams to the laser receiving plate 2, when the building structure 5 deforms to generate certain deflection, the laser receiving plate 2 and the longitudinal connecting component synchronously move downwards, the position of the laser beams falling on the laser receiving plate 2 can change at the moment, the deflection change condition of the building structure 5 can be known, the combination mode of the extension rod 3 and the telescopic sleeve 4 is convenient for adjusting the initial position of the laser receiving plate 2 for the laser transmitter 1, the convenience of initial positioning of the extension rod 3 and the telescopic sleeve 4 is improved, and the accuracy of deflection monitoring of the building structure 5 is ensured.

In this embodiment, through the relative slip of telescopic tube 4 and extension rod 3, realize indulging the relative regulation of coupling assembling direction of height, and then make laser receiving plate 2 in the upper and lower ascending initial position can form accurate correspondence with laser emitter 1, guarantee the accuracy of follow-up building structure 5 deflection monitoring.

Specifically, sliding sleeve on the telescopic tube 4 inner wall forms axial sliding fit relation with the slider 33 of telescopic link periphery, through the relative slip of two, realize the regulation of indulging coupling assembling length, make telescopic link and telescopic tube 4 circumference rotate through rotatory telescopic link after adjusting to required length, and then make slider 33 slide into spacing groove 42, make telescopic link and telescopic tube 4's axial position lock relatively, the effective locking of laser emitter 1 and laser receiving plate 2 relative position has been guaranteed, be convenient for guarantee the accuracy of building structure 5 deflection monitoring, the problem of manual monitoring precision difference has been avoided, the engineering quality of building structure 5 is convenient for control.

In one possible implementation, referring to fig. 1 to 3, a plurality of limiting grooves 42 are all located on the same side of the sliding groove 41, two sliding blocks 33 are provided, the projections of two sliding blocks 33 on the axis of the extension rod 3 coincide, and the distance between two adjacent sliding grooves 41 is equal to the distance between two adjacent sliding blocks 33.

In this embodiment, when the axial positions of the extension rod 3 and the telescopic tube 4 meet the installation height requirement of the laser receiving plate 2, the sliding block 33 of the extension rod 3 is rotated into the limit groove 42 by rotating the axial positions of the extension rod 3 and the telescopic tube 4, so that the axial positions of the telescopic tube 4 and the extension rod 3 are effectively locked.

Specifically, the limiting grooves 42 are located on the same side of the sliding groove 41, two sliding blocks 33 are provided, and the two sliding blocks 33 can rotate into the two adjacent limiting grooves 42 in a one-to-one correspondence manner, and the sliding blocks 33 are locked in the sliding groove 41. The distance between two adjacent sliding blocks 33 is equal to the distance between two adjacent sliding blocks 33, so that the two sliding blocks 33 and two adjacent sliding grooves 41 form a one-to-one correspondence, and the reliability of locking the axial positions of the extension rod 3 and the telescopic sleeve 4 is ensured.

In one possible implementation, referring to fig. 1 to 3, the width of the end of the limiting groove 42 away from the sliding groove 41 in the up-down direction is gradually reduced, and flexible rubber layers are respectively disposed on the groove top wall and the groove bottom wall of the limiting groove 42.

In this embodiment, in order to ensure that the sliding block 33 can be stably located in the limiting groove 42, flexible rubber layers are respectively disposed at the inner top and the inner bottom of the limiting groove 42, and when the sliding block 33 slides into the limiting groove 42, the upper end surface of the sliding block 33 is in press fit with the flexible rubber layer above, and the lower end surface of the sliding block 33 is in press fit with the flexible rubber layer below, so that the sliding block 33 is reliably locked in the limiting groove 42.

In some embodiments, referring to fig. 1 to 3, a grip portion 31 protruding toward the outer periphery is provided on the outer periphery of the upper portion of the extension rod 3, an anti-slip layer is provided on the outer peripheral wall of the grip portion 31, and a magnetic attraction block 32 or a hook is provided on the top of the grip portion 31. When the vertical connection assembly is connected to the lower part of the building structure 5, a holding part 31 is arranged at the upper end of the extension rod 3, so that the holding operation of operators is facilitated. The skid phenomenon that the hand sweats caused has been avoided in the setting of skid-proof course, the magnetism of grip portion 31 top inhale piece 32 directly adsorb to the building structure 5 of steel construction material on, to the building structure 5 of concrete material, then component such as accessible couple is connected, it is noted that the couple can set up a plurality ofly, it can obtain effective locking to guarantee to indulge coupling assembling's circumference position after connecting, avoid the laser receiving plate 2 of below to turn around in the wrong direction, influence the accuracy of laser beam acquisition position.

In one possible implementation, referring to fig. 1 to 3, the edge of the laser receiving board 2 is provided with a frame 21 extending toward one side of the laser transmitter 1, and the outer side of the frame 21 is provided with a dust-proof transparent board 22.

In this embodiment, the frame 21 on the outer periphery of the laser receiving plate 2 can enhance the structural strength of the laser receiving plate on one hand, and avoid the deformation caused by external force, on the other hand, the frame 21 can also provide an installation position for the arrangement of the dustproof transparent plate 22, the dustproof transparent plate 22 is a transparent material member, and can be made of glass or transparent plastic, and multiple installation modes such as clamping, bonding or connecting pieces are selected.

In one possible implementation, referring to fig. 1 to 3, a side of the laser receiving board 2 facing the laser transmitter 1 is provided with a grid scale 23 and a positioning base 24. In order to facilitate initial positioning of the relative positions of the laser transmitter 1 and the laser receiving plate 2, a positioning base point 24 is arranged on the laser receiving plate 2, and during initial positioning, the laser beam emitted by the laser transmitter 1 is overlapped with the positioning base point 24, so that setting of the relative positions of the laser transmitter 1 and the laser receiving plate 2 can be completed, and the subsequent accurate measurement of deflection of deformation generated by the building structure 5 can be conveniently performed.

In a possible implementation, referring to fig. 1 to 3, the top of the frame 21 is provided with an upwardly extending mounting shaft 25, the lower end of the telescopic tube 4 is provided with a lower end plate 43 rotatably sleeved on the periphery of the mounting shaft 25, the lower end plate 43 is provided with an adjusting hole 44 penetrating up and down for the mounting shaft 25 to pass through, and the upper end of the mounting shaft 25 is provided with a limiting plate 26 above the lower end plate 43.

In this embodiment, after the relative positions of the telescopic tube 4 and the extension rod 3 are locked by the sliding block 33 and the limiting groove 42, the lower laser receiving plate 2 can be finely adjusted in circumferential position relative to the telescopic tube 4 by the mounting shaft 25, and the limiting plate 26 at the upper end of the mounting shaft 25 is located in the inner cavity of the telescopic tube 4, so that the laser receiving plate 2 can be reliably hoisted below the telescopic tube 4.

On this basis, the locking bolts 27 are provided to penetrate the peripheral wall of the telescopic tube 4 in the radial direction, and the locking bolts 27 can abut against the outer peripheral wall of the limiting plate 26 to lock the circumferential positions of the mounting shaft 25 and the telescopic tube 4. The circumferential positions of the limiting plate 26, the mounting shaft 25 and the laser receiving plate 2 are locked through the locking bolts 27, so that the plate surface of the laser receiving plate 2 and the trend of the laser beam are ensured to be in a mutually perpendicular state.

Further, the inner peripheral wall of the adjustment hole 44 is provided with a friction layer 45 that slidably engages with the outer peripheral wall of the mounting shaft 25. The friction layer 45 on the inner peripheral wall of the adjusting hole 44 can increase the friction force between the mounting shaft 25 and the inner peripheral wall of the adjusting hole 44, and the stability of the circumferential position between the laser receiving plate 2 and the telescopic sleeve 4 is ensured.

In one possible implementation, referring to fig. 1 to 3, a stabilizing base 11 is disposed at the bottom of the laser emitter 1, the stabilizing base 11 is in a frustum structure, and a balancing weight 12 disposed on a side far from the laser emitter 1 is further disposed on a peripheral wall of the stabilizing base 11.

In this embodiment, the stable base 11 of laser emitter 1 bottom is big-end-down's toper structure, has improved laser emitter 1 mounted position's stability, and the setting of balancing weight 12 is convenient for balance laser emitter 1's gravity, avoids stable base 11 to take place unilateral slope.

The installation process comprises the following steps:

the laser transmitter 1 is installed to a preset point, the axial positions of the telescopic tube 4 and the extension rod 3 are adjusted according to the distance between the inner top wall of the building structure 5 and the positioning base point 24 of the laser transmitter 1, and after the axial positions of the telescopic tube 4 and the extension rod 3 are adjusted in place, the sliding block 33 is slid into the limiting groove 42 to lock the axial positions of the telescopic tube 4 and the extension rod 3. Thereafter, the laser receiving plate 2 is rotated to correspond to the emitting end of the laser emitter 1, and the circumferential positions of the mounting shaft 25 and the telescopic tube 4 are locked by the locking bolts 27, completing the mounting process.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The structure deflection measuring instrument is characterized by comprising a laser transmitter, a laser receiving plate and a longitudinal connecting assembly, wherein the laser receiving plate is arranged towards the laser transmitter and used for receiving laser beams, and the longitudinal connecting assembly is connected to the top of the laser receiving plate and used for connecting the laser receiving plate to the inner top surface of a building structure;

the vertical connecting assembly comprises a telescopic tube and an extension rod, wherein the telescopic tube is connected to the top of the laser receiving plate and extends upwards, the extension rod is connected to the telescopic tube in a sliding mode, the upper end of the extension rod is connected with the inner top surface of a building structure, a sliding groove with an axis extending and a plurality of limiting grooves which are respectively communicated with the sliding groove and extend circumferentially are formed in the inner wall of the telescopic tube, a sliding block is arranged on the extension rod and connected to the sliding groove in a sliding mode, and the sliding block can rotate to the limiting grooves in a circumferential mode to lock the axial positions of the telescopic tube and the extension rod.

2. The structural deflection measuring instrument according to claim 1, wherein the limiting grooves are all located on the same side of the sliding grooves, two sliding blocks are arranged, projections of the two sliding blocks on the axis of the extending rod are overlapped, and the distance between two adjacent sliding grooves is equal to the distance between two adjacent sliding blocks.

3. The structural deflection measuring instrument according to claim 2, wherein the width of the end of the limiting groove away from the sliding groove in the up-down direction is gradually reduced, and flexible rubber layers are respectively arranged on the groove top wall and the groove bottom wall of the limiting groove.

4. The structural deflection measuring instrument according to claim 3, wherein a holding part protruding towards the outer periphery is arranged on the outer periphery of the upper portion of the extension rod, an anti-slip layer is arranged on the outer peripheral wall of the holding part, and a magnetic attraction block or a hook is arranged on the top of the holding part.

5. The structural deflection measuring instrument according to claim 1, wherein a frame extending towards one side of the laser transmitter is arranged at the edge of the laser receiving plate, and a dustproof transparent plate is arranged at the outer side of the frame.

6. The structural deflection measuring instrument of claim 5 wherein a side of said laser receiving plate facing said laser transmitter is provided with grid graduations and locating base points.

7. The structural deflection measuring instrument of claim 6, wherein the top of the frame is provided with an upward extending mounting shaft, the lower end of the telescopic tube is provided with a lower end plate rotatably sleeved on the periphery of the mounting shaft, the lower end plate is provided with an adjusting hole which penetrates through the mounting shaft up and down, and the upper end of the mounting shaft is provided with a limiting plate positioned above the lower end plate.

8. The structural deflection measuring instrument according to claim 7, wherein a locking bolt is radially penetrating through the peripheral wall of the telescopic tube, and the locking bolt can be abutted against the peripheral wall of the limiting plate to lock the circumferential positions of the mounting shaft and the telescopic tube.

9. The structural deflection measuring instrument according to claim 8, wherein a friction layer which is in sliding fit with an outer peripheral wall of the mounting shaft is provided on an inner peripheral wall of the adjustment hole.

10. The structural deflection measuring instrument according to any one of claims 1 to 9, wherein a stabilizing base is arranged at the bottom of the laser transmitter, the stabilizing base is of a frustum structure, and a balancing weight arranged on one side of the stabilizing base away from the laser transmitter is further arranged on the peripheral wall of the stabilizing base.