CN217179520U - Bridge load test deflection detection device - Google Patents
Bridge load test deflection detection device Download PDFInfo
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- CN217179520U CN217179520U CN202123006850.7U CN202123006850U CN217179520U CN 217179520 U CN217179520 U CN 217179520U CN 202123006850 U CN202123006850 U CN 202123006850U CN 217179520 U CN217179520 U CN 217179520U
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Abstract
The utility model belongs to the technical field of detection device to a bridge load test amount of deflection detection device is specifically disclosed. Comprises an installation pipe, a clamp, a limiting part and a fixed seat; the limiting piece is arranged in a circular ring shape and is sleeved on the periphery of the installation pipe; one side of the limiting part is provided with an openable movable ring; one side of the movable ring is rotatably connected with the limiting part main body, and the other side of the movable ring and the limiting part keep magnetic attraction; the limiting piece is provided with a connecting rod extending downwards along the vertical direction; the hoop is sleeved on the limiting ring, and the top of the hoop is provided with a tightening part; the bottom of the clamp is provided with a through hole for the connecting rod to pass through; the bottom of the connecting rod is provided with a guide rod; the fixed seat is arranged at the bottom of the guide rod; the hoop, the limiting piece, the connecting rod and the fixing rod form a hanging device; the fixing base is provided with a laser range finder in an integrated mode. The utility model discloses can be convenient install laser range finder and bridge floor, set up a plurality of positions and measure simultaneously, the degree of accuracy is higher, and the error is littleer.
Description
Technical Field
The utility model relates to a detection device technical field especially relates to a bridge load test amount of deflection detection device.
Background
The deflection refers to the linear displacement of the axis of a rod piece in the direction vertical to the axis or the linear displacement of the middle surface of a plate shell in the direction vertical to the middle surface when the stress or the non-uniform temperature changes, most of the traditional bridge deflection measurement adopts a percentile meter or a displacement meter to directly measure, and at present, the method is still widely applied in the aspects of bridge maintenance, old bridge safety evaluation, new bridge acceptance and the like in China.
The prior art has the following problems: in actual measurement, a measuring instrument needs to be fixed on a stable horizontal device, so that the accuracy of a measuring result is ensured, the measuring instrument cannot be horizontally fixed when water exists under a bridge, the deflection of the bridge is difficult to measure, the measuring instrument is directly fixed on a pier of the built bridge, the horizontal fixation is difficult, the position of the measuring instrument is difficult to adjust, and the use condition is not ideal.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve the demand, the utility model provides a bridge load test amount of deflection detection device, wherein combine the characteristic of bridge self and the amount of deflection detection technology characteristics, the corresponding bridge load test amount of deflection detection device that has designed to study and design its key subassembly like the structure of installation pipe, clamp, locating part and fixing base and concrete mode of setting up, corresponding can be convenient install laser range finder and bridge floor, it measures simultaneously to set up a plurality of positions, the degree of accuracy is higher, the error is littleer.
In order to achieve the above purpose, the utility model provides a deflection detection device for bridge load test, which comprises at least two hanging devices, wherein,
each hanging device comprises an installation pipe, a clamp, a limiting part and a fixed seat, wherein the installation pipe is fixedly installed on a bridge body, the limiting part is sleeved on the installation pipe, one axial side of the limiting part is provided with an openable movable ring, one end of the movable ring is rotatably connected with the limiting part, the other end of the movable ring and the limiting part keep magnetic attraction, the limiting part is also provided with a connecting rod which extends downwards along the vertical direction, the clamp is sleeved on the limiting part, the clamp is provided with a tightening part and a through hole, the through hole is arranged along the vertical direction and used for the connecting rod to pass through, the bottom of the connecting rod is provided with a guide rod, the bottom of the guide rod is provided with the fixed seat, the fixed seat is provided with a laser range finder, a measuring point is arranged on a bridge pier, and the laser range finder is used for measuring distance data of the measuring point;
in this way, the deflection detection of the bridge load test is realized according to the distance data of the same measuring point obtained by multiple times of measurement of a plurality of laser range finders.
Preferably, both ends of the guide rod are provided with threaded columns, and the guide rod is installed in a matched manner with the connecting rod through the threaded columns;
the guide rod is a telescopic fixing rod.
Preferably, the fixing seat is provided with a screw head, and the fixing seat is installed in a matching manner with the guide rod through the screw head.
Preferably, the laser range finder is internally provided with a power supply battery, and the laser range finder is provided with a signal transceiver module in wireless communication connection with an upper computer.
Preferably, the installation pipe is fixed on a guardrail of the bridge body through an iron wire and an annular buckle.
More preferably, an elastic pad is provided on the contact surface inside the tightening part, and a fixing bolt is inserted into the tightening part.
Preferably, each fixing seat is provided with two laser distance measuring instruments, and the two laser distance measuring instruments correspondingly measure two different measuring points.
Generally, through the utility model discloses above technical scheme that conceive compares with prior art, mainly possesses following technical advantage:
1. the utility model discloses can be convenient install laser range finder and bridge floor, set up a plurality of positions and measure simultaneously, a plurality of laser range finders measure the same that obtains many times the distance data of measuring point realizes bridge load test amount of deflection and detects. For the same fixed measuring point, the same laser range finder measures to obtain distance data in a plurality of vertical directions, and then the displacement change of the bridge along the vertical direction is obtained through the height difference of the distance data. The measurement accuracy is higher, and the error is less.
2. The guide rod of the utility model is provided with a plurality of specifications; different specifications are different only in length; both ends of the guide rod are provided with threaded columns; the guide rod is installed in a matched mode through the threaded column and the connecting rod, a threaded head is arranged on the fixing seat, and the fixing seat is installed in a matched mode through the threaded head and the guide rod. The guide bar sets up different specifications, can choose for use the guide bar of different length to install when carrying out the amount of deflection detection to the bridge of different grade type, and the guide bar is connected with connecting rod and fixing base through the mode of screw thread, connects comparatively firmly, and the dismouting is more convenient.
3. When the device of the utility model is used for deflection detection, when the bridge floor is deformed downwards, the position of the corresponding laser range finder can be changed, the laser range finder is always focused on the measuring point of the pier, and the actual displacement value of the bridge floor can be calculated according to the distance data difference between two point positions; meanwhile, when two laser range finders with different directions are arranged at each detection point position for detection, the data are more accurate, and the measurement error can be reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the deflection detection device for bridge load test provided by the utility model;
fig. 2 is a schematic view of the installation structure of the laser range finder in the deflection detection device for bridge load test provided by the utility model;
fig. 3 is a schematic structural diagram of a hoop and a limiting member in the deflection detection device for bridge load test provided by the utility model;
fig. 4 is the utility model provides a bridge load test amount of deflection detection device's mounted position schematic diagram.
In all the figures, the same reference numerals denote the same features, in particular: 1. installing a pipe; 2. clamping a hoop; 21. a tightening part; 3. a connecting rod; 4. a guide bar; 5. a fixed seat; 51. a screw head; 6. a laser range finder; 7. a limiting member; 71. a movable ring; 8. a bridge deck; 9. a bridge pier; 10. a hanging device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention 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 merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-4, a deflection detecting device for bridge load test provided by the embodiment of the present invention comprises at least two hanging devices 10, wherein each of the hanging devices 10 comprises an installation tube 1, a hoop 2, a limiting member 7 and a fixing base 5, the installation tube 1 is fixedly installed on a bridge body, the limiting member 7 is sleeved on the installation tube 1, one axial side of the limiting member 7 is provided with an openable movable ring 71, one end of the movable ring 71 is rotatably connected with the limiting member 7, the other end of the movable ring is magnetically attracted with the limiting member 7, the limiting member 7 is further provided with a connecting rod 3 extending downwards along a vertical direction, the hoop 2 is sleeved on the limiting member 7, and the hoop 2 is provided with a tightening portion 21 and a through hole, the through hole is arranged along the vertical direction and is used for the connecting rod 3 to pass through, the bottom of the connecting rod 3 is provided with a guide rod 4, a fixed seat 5 is arranged at the bottom of the guide rod 4, a laser range finder 6 is arranged on the fixed seat 5, a measuring point is arranged on the pier 9, and the laser range finder 6 is used for measuring distance data of the measuring point; in this way, the deflection detection of the bridge load test is realized according to the distance data of the same measuring point obtained by multiple times of measurement of the laser range finders 6. For the same fixed measuring point, the same laser distance measuring instrument 6 measures to obtain a plurality of distance data in the vertical direction, and then the displacement change of the bridge along the vertical direction is obtained through the height difference of the distance data.
More specifically, in a specific embodiment of the present invention, the bridge load test deflection detecting device includes an installation tube 1, a clamp 2, a limiting member 7 and a fixing seat 5, wherein the installation tube 1 is a circular tube; the limiting piece 7 is arranged in a circular ring shape, and the limiting piece 7 is sleeved on the periphery of the installation pipe 1; one side of the limiting piece 7 is provided with an openable movable ring 71; one side of the movable ring 71 is rotatably connected with the main body of the limiting part 7, and the other side of the movable ring 71 and the limiting part 7 keep magnetic attraction; the limiting piece 7 is provided with a connecting rod 3 extending downwards along the vertical direction, the hoop 2 is sleeved on the periphery of the limiting ring, and the top of the hoop 2 is provided with a tightening part 21; the bottom of the hoop 2 is provided with a through hole for the connecting rod 3 to pass through; the bottom of the connecting rod 3 is provided with a guide rod 4; fixing base 5 sets up in the bottom of guide bar 4, and clamp 2, locating part 7, connecting rod 3 and dead lever constitute hooking device 10, and the integration is provided with laser range finder 6 on the fixing base 5. The laser range finders (6) are arranged in pairs.
In an alternative embodiment, the guide bar 4 is provided with a plurality of specifications; different specifications are different only in length; both ends of the guide rod 4 are provided with threaded columns; the guide rod 4 is installed in a matched mode with the connecting rod 3 through the threaded column, a threaded head 51 is arranged on the fixed seat 5, and the fixed seat 5 is installed in a matched mode with the guide rod 4 through the threaded head 51. The utility model discloses in, guide bar 4 can be flexible dead lever, adjusts the length of guide bar 4 according to the bridge floor of difference. And simultaneously, the utility model discloses in, can also adjust the position that fixing base 5 followed vertical direction with the 3 cooperation degree of depth of connecting rod of screw thread post.
It should be noted that the guide rod 4 sets up different specifications, can choose the guide rod 4 of different length for use to install when carrying out the amount of deflection detection to the bridge of different grade type, and guide rod 4 is connected with connecting rod 3 and fixing base 5 through the mode of screw thread, and it is comparatively firm to connect, and the dismouting is more convenient.
In an alternative embodiment, the laser range finder 6 is internally provided with a power supply battery, and the laser range finder 6 is provided with a signal transceiving module which is in wireless communication connection with the upper computer. The utility model discloses still include the host computer, this host computer integration has data storage module and data processing module, and signal transceiver module saves laser range finder 6's measured data, and data processing module reads data from data storage module to handle data, with the degree of disturbance that calculates the acquisition bridge.
The battery supplies power to the laser range finder, so that the laser range finder does not need external power supply and is suitable for different construction environments; the laser range finder 6 can be in wireless communication connection with an upper computer through the post-signal transceiver module, so that monitoring data can be obtained in real time.
In an alternative embodiment, the mounting tube 1 is fixed to the guardrail of the deck by means of wire and annular snap-in.
In an alternative embodiment, the contact surface of the tightening part 21 is provided with an elastic pad, and the tightening part 21 is provided with a fixing bolt.
In an alternative embodiment, the laser rangefinders 6 are arranged in pairs. Namely, two laser distance measuring instruments 6 are arranged on the fixed seat 5, and the two laser distance measuring instruments 6 correspondingly measure two different measuring points.
In an optional embodiment, an angle adjusting rotating block is further disposed between the fixed seat 5 and the laser range finder 6, the angle adjusting rotating block is rotatably connected with the fixed seat 5 through a rotating shaft, and a contact surface of the angle adjusting rotating block and the fixed seat 5 is an arc surface.
In the utility model, a plurality of installation pipes 1 are fixedly installed on the guardrail of the bridge floor through annular buckles and iron wires; then the movable ring 71 on the limiting member 7 is opened and sleeved on the installation pipe 1; the limiting piece 7 is an elastic piece, and the opening at the position of the movable ring 71 can be enlarged by pulling open with force, so that the installation is convenient; then the movable ring 71 is rotated, and the other end of the movable ring 71 and the limiting piece 7 keep magnetic attraction; then the hoop 2 and the limiting ring 7 are kept installed, and the connecting rod 3 on the limiting ring 7 penetrates through the through hole on the hoop 2; then, the tightening part 21 at the top of the hoop 2 is tightened by using a bolt, then, guide rods 4 with different lengths can be selected for installation when deflection detection is carried out on bridges of different types, and the guide rods 4 are connected with the connecting rod 3 and the fixed seat 5 in a threaded mode, so that the connection is firm, and the disassembly and the assembly are more convenient; finally, the position of the laser range finder 6 is adjusted. As shown in fig. 4, a measurement point is set on the pier 9 in advance; adjusting the angle of a laser range finder 6 hung below the bridge floor 8 to align the laser range finder with a measuring point on a pier 9 and focusing; at least two laser range finders 6 are arranged at each detection point position and work simultaneously; when the deflection is detected, when the bridge deck deforms downwards, namely when a load is loaded on the bridge, the position of the corresponding laser range finder 6 changes, the laser range finder 6 always focuses on a measuring point of the bridge pier 9, and the actual displacement value of the bridge deck can be calculated according to the distance data difference between two point positions before and after the load is loaded; meanwhile, when two laser range finders 6 with different directions are arranged at each detection point position for detection, the data are more accurate, and the measurement error can be reduced. The utility model discloses can be convenient install laser range finder 6 and bridge floor, set up a plurality of positions and measure simultaneously, the degree of accuracy is higher, and the error is littleer.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The deflection detection device for the bridge load test is characterized by comprising at least two hanging devices (10),
each hanging device (10) comprises an installation pipe (1), a hoop (2), a limiting piece (7) and a fixed seat (5), the installation pipe (1) is horizontally and fixedly installed on a bridge body, the limiting piece (7) is sleeved on the installation pipe (1), one axial side of the limiting piece (7) is provided with an openable movable ring (71), one end of the movable ring (71) is rotatably connected with the limiting piece (7), the other end of the movable ring is magnetically attracted with the limiting piece (7), the limiting piece (7) is further provided with a connecting rod (3) which extends downwards along the vertical direction, the hoop (2) is sleeved on the limiting piece (7), a tightening part (21) and a through hole are arranged on the hoop (2), the through hole is arranged along the vertical direction and is used for the connecting rod (3) to pass through, the bottom of the connecting rod (3) is provided with a guide rod (4), a fixed seat (5) is arranged at the bottom of the guide rod (4), a laser range finder (6) is arranged on the fixed seat (5), a measuring point is arranged on the pier (9), and the laser range finder (6) is used for measuring distance data of the measuring point;
in this way, the deflection detection of the bridge load test is realized according to the distance data of the same measuring point obtained by multiple times of measurement of a plurality of laser range finders (6).
2. The bridge load test deflection detection device according to claim 1, wherein both ends of the guide rod (4) are provided with threaded columns, and the guide rod (4) is installed in a matched mode with the connecting rod (3) through the threaded columns;
the guide rod (4) is a telescopic fixing rod.
3. The bridge load test deflection detection device according to claim 1, wherein a threaded head (51) is arranged on the fixed seat (5), and the fixed seat (5) is installed with the guide rod (4) in a matched mode through the threaded head (51).
4. The bridge load test deflection detection device according to claim 1, characterized in that a power supply battery is arranged in the laser range finder (6), and a signal transceiver module in wireless communication connection with an upper computer is arranged on the laser range finder (6).
5. The deflection detection device for the bridge load test is characterized in that the mounting pipe (1) is fixed on a guardrail of a bridge body through an iron wire and an annular buckle.
6. The deflection detection device for the bridge load test according to claim 1, wherein an elastic pad is arranged on the contact surface of the inner side of the tightening part (21), and a fixing bolt is inserted into the tightening part (21).
7. The bridge load test deflection detection device according to any one of claims 1-6, wherein each fixing seat (5) is provided with two laser distance meters (6), and the two laser distance meters (6) correspondingly measure two different measuring points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123006850.7U CN217179520U (en) | 2021-12-02 | 2021-12-02 | Bridge load test deflection detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123006850.7U CN217179520U (en) | 2021-12-02 | 2021-12-02 | Bridge load test deflection detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217179520U true CN217179520U (en) | 2022-08-12 |
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ID=82725652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123006850.7U Active CN217179520U (en) | 2021-12-02 | 2021-12-02 | Bridge load test deflection detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217179520U (en) |
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2021
- 2021-12-02 CN CN202123006850.7U patent/CN217179520U/en active Active
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