CN115479196A - Bridge amount of deflection detection device - Google Patents

Bridge amount of deflection detection device Download PDF

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Publication number
CN115479196A
CN115479196A CN202211167442.6A CN202211167442A CN115479196A CN 115479196 A CN115479196 A CN 115479196A CN 202211167442 A CN202211167442 A CN 202211167442A CN 115479196 A CN115479196 A CN 115479196A
Authority
CN
China
Prior art keywords
rotating
rotation limiting
deflectometer
limiting
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211167442.6A
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Chinese (zh)
Inventor
侯攀
林宁
刘思琴
罗伟斌
彭放枚
郑亮亮
梁金福
朱海斌
陈美村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Geosciences
Original Assignee
China University of Geosciences
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Geosciences filed Critical China University of Geosciences
Priority to CN202211167442.6A priority Critical patent/CN115479196A/en
Publication of CN115479196A publication Critical patent/CN115479196A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
    • G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/02—Locking means
    • F16M2200/021—Locking means for rotational movement
    • F16M2200/024—Locking means for rotational movement by positive interaction, e.g. male-female connections

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The invention discloses a bridge deflection detection device, which comprises: a deflectometer body; the connecting mechanism is detachably connected with the bottom of the deflectometer body; the rotary base is rotationally connected with the connecting mechanism, and the lower part of the rotary base is provided with a plurality of supporting legs; the connection mechanism further comprises an installation shell and a rotation limiting assembly arranged in the installation shell, the rotation limiting assembly is used for limiting the connection mechanism and the rotary base to rotate relatively, one end of the rotation limiting assembly faces the bottom of the deflectometer body, so that after the connection position of the deflectometer and the body connection mechanism is changed, one end, far away from the deflectometer body, of the rotation limiting assembly can be moved out or clamped into a limiting groove formed in the rotary base. The bridge deflection detection device provided by the invention avoids relative rotation of the deflection instrument body and the rotary base, and the lower part of the deflection instrument body drives the rotation limiting component to act on the rotary base, so that the whole structure is simplified.

Description

Bridge amount of deflection detection device
Technical Field
The invention belongs to the technical field of devices for bridge detection, and particularly relates to a bridge deflection detection device.
Background
At present, the traditional measuring method of bridge deflection mainly comprises the following steps: leveling and total station measurements. In the traditional leveling measurement method and the total station measurement method, a detection datum point and a plurality of measurement points are set through surveying and mapping instruments such as a leveling instrument and a total station, elevation data of a reference datum point are respectively introduced, and measurement is carried out manually.
Deflectometers are instruments used to measure deflection. The deflectometer can measure the variation of the vertical distance of an object above at any angle, and is mainly used for measuring the static and dynamic deflection of the bridge and checking and identifying the completion of the bridge; and detecting special bridges such as military floating bridges, suspension bridges and the like.
An authorization notice number CN211477551U discloses a bridge deflection detection device, as shown in figure 1, a support member is arranged at the bottom of a deflection instrument body, the support member is designed into a structure capable of rotating at the upper part of a rotating base, and after a chuck is inserted into a fixed cavity, the support member does not rotate or shake; the bridge deflection detection device is not required to be assembled and fixed by bolts, so that the working efficiency and the speed are effectively improved, and the bridge deflection detection device is simpler and more convenient to disassemble in the later period.
The defect that the flexibility meter body can be prevented from rotating relative to the rotating base when the clamping head is inserted into the fixing cavity, however, a plurality of balls are arranged in the lower support of the rotating base and located between the upper support and the lower support, so that the rotating base has the characteristic of rotating along the axis of the rotating base, and the rotating base does not adopt technical means to limit the rotation of the upper support relative to the lower support, so that the flexibility detection accuracy is influenced due to the fact that the rotating base can rotate after the angle is well adjusted when a worker actually uses the equipment.
Disclosure of Invention
The invention provides a bridge deflection detection device, aiming at the technical problem that the deflection detection accuracy is influenced when an upper support rotates relative to a lower support in the existing bridge deflection detection device and a deflection is measured by using the device in practice.
In order to solve the technical problems, the invention adopts the following technical scheme:
a bridge deflection detection device comprising:
a deflectometer body;
the connecting mechanism is detachably connected with the bottom of the deflectometer body; the rotary base is rotationally connected with the connecting mechanism, and the lower part of the rotary base is provided with a plurality of supporting legs;
the connection mechanism further comprises an installation shell and a rotation limiting assembly arranged in the installation shell, the rotation limiting assembly is used for limiting the connection mechanism and the rotary base to rotate relatively, one end of the rotation limiting assembly faces the bottom of the deflectometer body, so that after the connection position of the deflectometer and the body connection mechanism is changed, one end, far away from the deflectometer body, of the rotation limiting assembly can be moved out or clamped into a limiting groove formed in the rotary base.
Furthermore, the rotation limiting assembly comprises a rotation limiting column and a rotation limiting spring, the cross section of the rotation limiting column is of a polygonal structure, one end, far away from the deflectometer body, of the rotation limiting column is provided with a rotation limiting head, the rotation limiting column penetrates through the rotation limiting spring, and the rotation limiting spring exerts force, far away from the limiting groove, on the rotation limiting column.
Furthermore, the cross section of the rotation limiting head is of a polygonal structure, and one end, far away from the limiting groove, of the rotation limiting head is provided with a chamfer.
Furthermore, one end of the installation shell is a rotating end rotationally connected with the rotating base, one end of the installation shell, which is far away from the rotating end, is a connecting end, the connecting mechanism further comprises a driving component, a transmission component and an execution component, the connecting end is provided with a connecting groove, the driving component is rotationally connected with the installation shell and is in transmission fit with the transmission component, the transmission component is connected to the execution component, and the execution component partially extends into the connecting groove;
one end of the driving component is an operation end extending out of the mounting shell, so that when the operation end of the driving component is operated, the part of the execution component located in the connecting groove can fix the deflectometer body in the connecting groove.
Furthermore, the driving assembly comprises a rotating screw rod, the rotating screw rod penetrates through a driving hole formed in the mounting shell, the rotating screw rod is connected with the mounting shell through a bearing, a rotating disc is fixed at one end of the rotating screw rod, and the rotating disc is arranged outside the mounting shell.
Further, transmission assembly quantity has two and the symmetry sets up in installation casing both sides, transmission assembly includes thread bush, dwang and fixes the pillar on the installation casing, rotate the screw rod with thread bush threaded connection, the dwang middle part with the pillar is articulated, and dwang one end is articulated with the thread bush, the other end with the execution module is articulated to make rotate the rotation screw rod rotate the back the thread bush can remove along rotating screw rod axis direction.
Further, execute subassembly quantity has two and is the gag lever post, gag lever post length direction with it is parallel to rotate the screw axis direction, gag lever post one end with the dwang is articulated, and the other end stretches into extremely in the spread groove, and the gag lever post can follow the dwang rotates and removes.
Furthermore, at least two rotating heads are fixed at the bottom of the mounting shell, each rotating head is of a T-shaped structure, one end, far away from the mounting shell, of each rotating head is a big end, and the big end extends into an annular groove formed in the rotating base.
Furthermore, a connector is fixed at the bottom of the deflectometer body, a plurality of grooves are distributed on the side face of the connector along the height direction, and the grooves correspond to the end parts of the limiting rods.
Compared with the prior art, the scheme has the beneficial effects that:
1. according to the bridge deflection detection device, the bottom of the deflection instrument body is detachably connected with the connecting mechanism, the connecting mechanism is rotatably connected with the rotating base, the connecting mechanism comprises the mounting shell and the rotation limiting assembly arranged in the mounting shell, after the connecting position of the deflection instrument and the body connecting mechanism is changed, the relative rotation of the rotating base and the connecting mechanism can be limited through the rotation limiting assembly, the relative rotation of the deflection instrument body and the rotating base is avoided, the rotation limiting assembly is driven to act on the rotating base through the lower part of the deflection instrument body, and the whole structure can be simplified;
2. under the optimal condition, the driving assembly is arranged in the installation shell, the driving assembly drives the transmission assemblies symmetrically arranged on two sides of the installation shell to work, the transmission assemblies transmit power to the execution assemblies, and the execution assemblies partially extend into the connecting grooves, so that the deflectometer body is clamped tightly, and the deflectometer body is easily installed on the connecting mechanism or taken down from the deflectometer body.
Drawings
FIG. 1 is a schematic structural diagram of a conventional bridge deflection detection device;
FIG. 2 is a front view of the bridge deflection detecting apparatus of the present invention;
FIG. 3 is a sectional view of the connecting mechanism of the bridge deflection detecting device of the present invention;
fig. 4 is an enlarged view of a portion a in fig. 3.
The reference numbers are in sequence:
the deflectometer comprises a deflectometer body 1, a connecting head 11, a groove 12, a connecting mechanism 2, an installation shell 21, a rotating head 211, a connecting groove 212, a rotation limiting column 22, a spring 221, a rotation limiting head 23, a rotating screw 24, a rotating disc 241, a bearing 242, a transmission assembly 25, a threaded sleeve 251, a rotating rod 252, a support column 253, a limiting rod 26, a rotating base 3, a limiting groove 31 and a supporting leg 4.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a deflectometer body 1 of an existing bridge deflection detection device is rotatably installed on a rotating base 3, and can rotate in a horizontal plane around the rotating base 3, so that the orientation is conveniently adjusted. The deflectometer body 1 can adjust the pitching angle, which is the prior art. The existing bridge deflection detection device has the defect that the rotating base 3 comprises an upper support and a lower support, a plurality of balls are arranged in the lower support, and the balls are located between the upper support and the lower support, so that the upper support and the lower support can rotate relatively and cannot fix a certain angle, and the deflection detection accuracy is influenced by the fact that the upper support and the lower support can rotate after the angle is adjusted when a worker actually uses the equipment.
Therefore, the invention provides a bridge deflection detection device, as shown in fig. 2, comprising:
a deflectometer body 1;
the connecting mechanism 2 is detachably connected with the bottom of the deflectometer body 1; and
the rotating base 3 is rotationally connected with the connecting mechanism 2, and the lower part of the rotating base 3 is provided with a plurality of supporting legs 4;
wherein, coupling mechanism 2 still changes the subassembly with the limit of setting in mounting housing 21 including mounting housing 21, the limit changes the subassembly and is used for restricting coupling mechanism 2 and rotating base 3 relative rotation, limit changes subassembly one end orientation 1 bottom of deflectometer body to after making change the hookup location of deflectometer and body coupling mechanism 2, promptly, change the degree of depth in spread groove 212 with 1 bottom connector 11 of deflectometer body, thereby the limit groove 31 that rotating base 3 offered can be moved out or blocked into to the one end that the limit changes the subassembly and keeps away from deflectometer body 1.
According to a specific embodiment provided by the invention, as shown in fig. 3 and 4, the rotation limiting assembly comprises a rotation limiting column 22 and a rotation limiting spring 221, the cross section of the rotation limiting column 22 is of a polygonal structure, one end of the rotation limiting column 22, which is far away from the deflectometer body 1, is provided with a rotation limiting head 23, the rotation limiting column 22 penetrates through the rotation limiting spring 221, and the rotation limiting spring 221 applies a force, which is far away from the limiting groove 31, to the rotation limiting column 22. The cross section of the rotation limiting head 23 is of a polygonal structure, and one end, far away from the limiting groove 31, of the rotation limiting head 23 is provided with a chamfer so as to be better inserted into the rotation limiting groove.
In this embodiment, the rotation limiting component is arranged between the deflectometer body 1 and the rotating base 3 and is positioned in the installation shell 21, when a user uses the bridge deflection detection device, the support leg 4 is supported on the ground, the rotation limiting column 22 is in a vertical state at the moment, namely, the state perpendicular to the ground, thus, when the user needs to avoid the rotation of the deflectometer body 1, the deflectometer body 1 can be installed at a set position, the rotation limiting column 22 presses the rotation limiting spring 221, the rotation limiting head 23 is inserted into the rotation limiting groove, the rotation limiting groove is arranged on one surface of the rotating base 3 facing the rotation limiting column 22 and is arranged corresponding to the rotation limiting column 22, and the cross section of the rotation limiting column 22 is of a polygonal structure, so that the connection mechanism 2 is prevented from rotating relative to the rotating base 3, and the rotation of the deflectometer body 1 in the horizontal plane is limited. Therefore, a user can only adjust the pitching angle of the deflectometer body 1 to complete the detection of the bridge deflection data.
Furthermore, one end of the mounting housing 21 is a rotating end rotatably connected with the rotating base 3, and one end of the mounting housing 21 away from the rotating end is a connecting end, the connecting mechanism 2 further includes a driving component, a transmission component 25 and an execution component, the connecting end is provided with a connecting groove 212, the driving component is rotatably connected with the mounting housing 21 and is in transmission fit with the transmission component 25, the transmission component 25 is connected to the execution component, and the execution component partially extends into the connecting groove 212;
wherein, one end of the driving component is an operation end extending out of the mounting shell 21, so that when the operation end of the driving component is operated, the part of the actuating component located in the connecting groove 212 can fix the deflectometer body 1 in the connecting groove 212.
The bridge deflection detection device is characterized in that a driving assembly is arranged in a mounting shell 21, the driving assembly drives transmission assemblies 25 symmetrically arranged on two sides of the mounting shell 21 to work by operating an operating end of the driving assembly, the transmission assemblies 25 transmit power to an execution assembly, and the execution assembly partially extends into a connecting groove 212, so that a deflection instrument body 1 is clamped tightly, and the deflection instrument body 1 is easily mounted on a connecting mechanism 2 or taken down from the deflection instrument body 1.
In another preferred embodiment, the invention may only design the transmission assembly 25 on one side of the installation housing 21, may be the left side of the installation housing 21, and may also be the right side of the installation housing 21, of course, only the number is changed, the structure of the transmission assembly 25 is not changed, and only one execution assembly is installed on the corresponding installation housing 21, and is connected with the transmission assembly 25 in a matching manner, the operation principle is basically the same as the structure of the transmission assembly 25 designed symmetrically, except that the execution assembly is clamped into the groove 12 of the connecting head 11 fixed at the bottom of the deflectometer body 1 from one side, and the groove 12 is distributed along the length direction of the connecting head 11, so that when the connecting head 11 is pressed into the connecting groove 212, the limit head can be pressed into the limit groove 31 according to the requirement, or the limit head is not pressed into the limit groove 31.
During specific design, the connection groove 212 may be formed in the middle of the mounting case 21, the mounting case 21 has a hollow structure, and the connection groove 212 may be formed by bending the wall of the mounting case 21 to form a groove chamber or hollowing the outer wall of the mounting case 21.
Further, the driving assembly includes a rotating screw 24, the rotating screw 24 passes through a driving hole formed in the mounting housing 21, the rotating screw 24 is connected with the mounting housing 21 through a bearing 242, a rotating disc 241 is fixed at one end of the rotating screw 24, and the rotating disc 241 is arranged outside the mounting housing 21.
According to an embodiment of the present invention, when the bridge deflection detecting device is vertically disposed, the rotating screw 24 is in a horizontal state in an optimal state, so as to facilitate the rotation of the user, the rotating disc 241 is a disc structure or an annular structure, and the driving holes are formed in two side walls of the mounting housing 21, so that the rotating screw 24 passes through the driving holes. During the specific design, need with spacing post and rotation screw rod 24 dislocation set, promptly, spacing post can deviate the middle part design of installation casing 21 diapire, staggers and rotates screw rod 24, as long as spacing toe portion can be pushed down by connector 11 can.
In the specific installation, as shown in fig. 4, the middle of the rotation screw 24 passes through the bearing 242, and the bearing 242 is installed on the inner wall of the installation case 21 at the connection groove 212 and the other side of the inner wall.
Further, two transmission assemblies 25 are symmetrically arranged on two sides of the mounting housing 21, each transmission assembly 25 includes a threaded sleeve 251, a rotating rod 252 and a support 253 fixed on the mounting housing 21, the rotating screw 24 is in threaded connection with the threaded sleeve 251, the middle of the rotating rod 252 is hinged to the support 253, one end of the rotating rod 252 is hinged to the threaded sleeve 251, and the other end of the rotating rod 252 is hinged to the executing assembly, so that the threaded sleeve 251 can move along the axial direction of the rotating screw 24 after the rotating screw 24 rotates.
According to a specific embodiment of the present invention, in this embodiment, the transmission assemblies 25 are symmetrically disposed on both sides of the mounting housing 21, the threaded sleeves 251 are internally threaded and are threadedly connected to the rotating screws 24, the outer portions of the threaded sleeves 251 are hinged to the rotating rods 252, the middle portions of the rotating rods 252 are hinged to the supporting posts 253, and the other ends of the rotating rods 252 are hinged to the actuating assemblies, so that when the rotating screws 24 are rotated, the two threaded sleeves 251 are simultaneously moved away from each other or moved close to each other, and the actuating assemblies are levered to operate after the rotating rods 252 are rotated.
Further, the number of the executing components is two and is the limiting rod 26, the length direction of the limiting rod 26 is parallel to the axial direction of the rotating screw 24, one end of the limiting rod 26 is hinged to the rotating rod 252, the other end of the limiting rod extends into the connecting groove 212, and the limiting rod 26 can move along with the rotating rod 252.
According to a specific embodiment of the present invention, the actuating component is disposed corresponding to the transmission component 25, the limiting rod 26 is fixed with a limiting clip, and when the limiting rod 26 moves to a certain distance, the limiting clip abuts against the mounting housing 21.
Further, the bottom of the mounting housing 21 is fixed with at least two rotating heads 211, the rotating heads 211 are of a "T" type structure, one end of the rotating heads 211, which is far away from the mounting housing 21, is a large end, and the large end extends into an annular groove formed in the rotating base 3.
Further, a connector 11 is fixed at the bottom of the deflectometer body 1, a plurality of grooves 12 are distributed on the side surface of the connector 11 along the height direction, and the grooves 12 correspond to the end parts of the limiting rods 26.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A bridge amount of deflection detection device which characterized in that includes:
a deflectometer body;
the connecting mechanism is detachably connected with the bottom of the deflectometer body; and
the rotating base is rotationally connected with the connecting mechanism, and a plurality of supporting legs are arranged at the lower part of the rotating base;
the connection mechanism further comprises an installation shell and a rotation limiting assembly arranged in the installation shell, the rotation limiting assembly is used for limiting the connection mechanism and the rotary base to rotate relatively, one end of the rotation limiting assembly faces the bottom of the deflectometer body, so that after the connection position of the deflectometer and the body connection mechanism is changed, one end, far away from the deflectometer body, of the rotation limiting assembly can be moved out or clamped into a limiting groove formed in the rotary base.
2. The bridge deflection detection device of claim 1, wherein the rotation limiting assembly comprises a rotation limiting column and a rotation limiting spring, the cross section of the rotation limiting column is of a polygonal structure, one end of the rotation limiting column, which is far away from the deflectometer body, is provided with a rotation limiting head, the rotation limiting column penetrates through the rotation limiting spring, and the rotation limiting spring applies a force, which is far away from the limiting groove, to the rotation limiting column.
3. The bridge deflection detecting device of claim 2, wherein the cross section of the rotation limiting head is a polygonal structure, and one end of the rotation limiting head away from the limiting groove is provided with a chamfer.
4. The bridge deflection detecting device according to any one of claims 1-3, wherein one end of the mounting housing is a rotating end rotatably connected to the rotating base, and the other end of the mounting housing facing away from the rotating end is a connecting end, the connecting mechanism further comprises a driving component, a transmission component and an actuating component, the connecting end is provided with a connecting groove, the driving component is rotatably connected to the mounting housing and is in transmission fit with the transmission component, the transmission component is connected to the actuating component, and the actuating component partially extends into the connecting groove;
one end of the driving component is an operation end extending out of the mounting shell, so that when the operation end of the driving component is operated, the part of the execution component located in the connecting groove can fix the deflectometer body in the connecting groove.
5. The bridge deflection detecting device according to claim 4, wherein the driving assembly includes a rotating screw, the rotating screw passes through a driving hole formed in the mounting housing, the rotating screw is connected with the mounting housing through a bearing, a rotating disc is fixed at one end of the rotating screw, and the rotating disc is arranged outside the mounting housing.
6. The bridge deflection detecting device according to claim 5, wherein the number of the transmission components is two and symmetrically arranged at two sides of the installation shell, the transmission components comprise a threaded sleeve, a rotating rod and a pillar fixed on the installation shell, the rotating screw rod is in threaded connection with the threaded sleeve, the middle of the rotating rod is hinged with the pillar, one end of the rotating rod is hinged with the threaded sleeve, the other end of the rotating rod is hinged with the executing component, so that the threaded sleeve can move along the axial direction of the rotating screw rod after the rotating screw rod rotates.
7. The bridge deflection detection device according to claim 6, wherein there are two and all the actuating components, the length direction of the limiting rod is parallel to the axial direction of the rotating screw rod, one end of the limiting rod is hinged to the rotating rod, the other end of the limiting rod extends into the connecting groove, and the limiting rod can move along with the rotation of the rotating rod.
8. The bridge deflection detection device according to any one of claims 4 to 7, wherein at least two rotating heads are fixed at the bottom of the installation shell, each rotating head is of a T-shaped structure, one end of each rotating head, which is far away from the installation shell, is a large end, and the large end extends into an annular groove formed in the rotating base.
9. The bridge deflection detection device according to claim 7, wherein a connector is fixed at the bottom of the deflection gauge body, a plurality of grooves are distributed on the side surface of the connector along the height direction, and the grooves correspond to the end parts of the limiting rods.
CN202211167442.6A 2022-09-23 2022-09-23 Bridge amount of deflection detection device Pending CN115479196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211167442.6A CN115479196A (en) 2022-09-23 2022-09-23 Bridge amount of deflection detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211167442.6A CN115479196A (en) 2022-09-23 2022-09-23 Bridge amount of deflection detection device

Publications (1)

Publication Number Publication Date
CN115479196A true CN115479196A (en) 2022-12-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211167442.6A Pending CN115479196A (en) 2022-09-23 2022-09-23 Bridge amount of deflection detection device

Country Status (1)

Country Link
CN (1) CN115479196A (en)

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