CN115014255A - Detection device for bridge expansion joint - Google Patents
Detection device for bridge expansion joint Download PDFInfo
- Publication number
- CN115014255A CN115014255A CN202210871844.8A CN202210871844A CN115014255A CN 115014255 A CN115014255 A CN 115014255A CN 202210871844 A CN202210871844 A CN 202210871844A CN 115014255 A CN115014255 A CN 115014255A
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- China
- Prior art keywords
- expansion joint
- hole
- measuring
- rotating
- bridge
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
Abstract
The invention discloses a detection device for a bridge expansion joint, which relates to the technical field of bridge expansion joints and comprises an outer frame, wherein a storage battery, a display and a handle are arranged on the outer frame, and the detection device also comprises: the inner frame is movably arranged on the inner side of the outer frame through a lifting cylinder, four pulleys are mounted at the bottom of the outer frame, two pulleys and two in-hole guide wheels are mounted at the bottom end of the inner frame, and the two in-hole guide wheels are used for moving along the expansion joint; and one side of the inner frame, which is close to the expansion joint, is provided with a lifting mechanism, and the lifting mechanism is used for controlling the rotation plate, the hole cleaning mechanism and the hole measuring mechanism to lift. When the expansion joint detection device is used for detecting the expansion joint, the hole cleaning mechanism is firstly used for cleaning sundries such as stones in the expansion joint, then the hole measuring mechanism is used for accurately measuring the expansion joint, and the device can move along the expansion joint by virtue of the in-hole guide wheel at the lower part of the inner frame in the process, so that the expansion joint detection can be realized continuously, efficiently and accurately.
Description
Technical Field
The invention relates to the technical field of bridge expansion joints, in particular to a detection device for a bridge expansion joint.
Background
Bridge expansion joints: it is referred to that in order to meet the requirement of deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge. The expansion joint is required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, and the expansion joint is firm and reliable, and when a vehicle runs, the vehicle is smooth and free of sudden jump and noise; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient.
Through the retrieval, chinese patent No. CN 211626543U discloses a bridge large displacement expansion joint structure monitoring devices, including the backup pad, the middle part fixedly connected with support column of backup pad upper surface, the cavity has been seted up to the inside of support column, the front side fixedly connected with dc-to-ac converter of support column inner bottom lateral wall.
The monitoring device in the prior art still has the following shortcomings when in actual use: when the monitoring device monitors the expansion joint, due to the fact that a large amount of sundries such as stones exist in the expansion joint, manual cleaning is needed before monitoring, however, cleaning operation is time-consuming and labor-consuming, monitoring time-consuming is long, and if cleaning is not thorough, monitoring results are inaccurate, so that the detection device for the bridge expansion joint is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a device for detecting a bridge expansion joint.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a detection device at bridge expansion joint, includes the outrigger, is equipped with the battery on the outrigger, and display and handle still include: the inner frame is movably arranged on the inner side of the outer frame through a lifting cylinder, four pulleys are mounted at the bottom of the outer frame, two pulleys and two in-hole guide wheels are mounted at the bottom end of the inner frame, and the two in-hole guide wheels are used for moving along the expansion joint;
the lifting mechanism is used for controlling the rotating plate, the hole cleaning mechanism and the hole measuring mechanism to lift, and the lifting mechanism also controls the rotating plate, the hole cleaning mechanism and the hole measuring mechanism to lift and rotate through the rotating mechanism;
the hole cleaning mechanism and the hole measuring mechanism are respectively arranged at two ends of the rotating plate, the hole cleaning mechanism is used for cleaning the expansion joint, and the hole measuring mechanism is used for measuring the expansion joint.
Furthermore, the guide wheels in the holes respectively comprise a center wheel and two side wheels, the center wheel is positioned between the two side wheels, the center wheel and the side wheels are arranged on the same wheel shaft, the wheel shaft and the two mounting plates are rotatably arranged through bearings, and the mounting plates are fixedly arranged on the bottom surface of the inner frame.
Furthermore, elevating system is including fixing the U type frame in inner tower one side, and the inboard slip of U type frame is equipped with the slide, and slide and lift lead screw thread mounting, and the lift lead screw passes through elevator motor drive.
Further, rotary mechanism is including setting up the pivot between rotor plate and slide, the one end and the rotor plate of pivot are fixed, and the other end rotates the installation with the slide, and installs the worm wheel in the pivot, and worm wheel and worm meshing transmission, the worm passes through the rotating electrical machines drive, and the rotating electrical machines is fixed with the installation of lift seat.
Furthermore, clear hole mechanism is including rotating the clear hole wheel of installing in rotor plate one end, clear hole wheel is through clear hole motor drive, clear hole motor and the tip fixed mounting of rotor plate.
Furthermore, the hole measuring mechanism comprises two vertically parallel fixed plates, one of the fixed plates is fixed at one end of the rotating plate, which is far away from the hole cleaning mechanism, the upper ends of the two fixed plates are jointly provided with a scale guide rail, the lower ends of the two fixed plates are jointly provided with a slide rail, the two measuring plates are jointly slidably arranged between the scale guide rail and the slide rail, a spring shaft is also jointly arranged between the two fixed plates, the spring shaft comprises a transverse shaft and two springs, the transverse shaft respectively slidably penetrates through the two measuring plates, the number of the springs is two, and one of the springs is arranged between the fixed plate and the measuring plate on one side; laser range finders are installed on the upper portions of the two fixing plates, the two laser range finders measure the top end positions of the measuring plates on the same side respectively, and measured data are displayed through a displayer.
Furthermore, two still rotate jointly between the fixed plate and be equipped with two-way lead screw, two removal pieces are installed to the last symmetry screw thread of two-way lead screw, and one side that every removal piece is close to the measuring plate of homonymy all is equipped with contact one, and one side that the measuring plate is close to the removal piece of homonymy all is equipped with contact two, sets up the siren on the outrigger, and the siren is reported to the police when being located contact of contact one and contact two of homonymy.
Furthermore, a groove is formed in the top surface of the scale guide rail, and scale marks are arranged in the groove.
Compared with the prior art, the invention has the beneficial effects that:
1. the detection device is provided with the liftable inner frame, and the two hole guide wheels capable of moving along the expansion joint are arranged on one side of the bottom of the inner frame, so that the device can stably move along the expansion joint during working, and the subsequent detection work is facilitated.
2. According to the invention, the hole cleaning mechanism and the hole measuring mechanism with adjustable heights and angles are arranged, and before detection, impurities such as stones in the expansion joint are efficiently cleaned through the hole cleaning mechanism, so that the expansion joint can be conveniently and accurately detected subsequently.
3. The hole measuring mechanism arranged in the device can be conveniently placed in the expansion joint, the expansion joint can be quickly and accurately measured through the mutual matching of the measuring plate, the spring shaft and the laser range finder, the device can be guided by means of the guide wheel in the hole during measurement, the expansion joint can be continuously and efficiently detected, detected data can be displayed in real time through the display screen, personnel can conveniently record the data, and when the data of the expansion joint is overlarge, the contact I and the contact II arranged on the moving piece and the measuring plate can be in mutual contact, so that alarm prompt is realized.
In summary, in the invention, the hole cleaning mechanism is firstly used for cleaning up the impurities such as stones in the expansion joint during detection, then the hole measuring mechanism is used for accurately measuring the expansion joint, and the device can move along the expansion joint by virtue of the in-hole guide wheel at the lower part of the inner frame during the process, so that the expansion joint detection can be realized continuously, efficiently and accurately.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of the present invention in use during hole cleaning;
FIG. 2 is a schematic diagram of the present invention in use in hole testing;
FIG. 3 is a schematic view of the installation of the external frame and the internal frame;
FIG. 4 is a schematic view of the structure of the guide wheel in the hole;
FIG. 5 is an installation schematic diagram of the lifting mechanism, the rotating plate, the hole cleaning mechanism and the hole measuring mechanism;
FIG. 6 is an enlarged view of a portion a of the structure of FIG. 5;
FIG. 7 is a schematic structural diagram of a hole measuring mechanism;
FIG. 8 is a schematic view of the mounting of contact one on the moving plate;
fig. 9 is a schematic view of the installation of the second contact on the measurement board.
In the figure: the device comprises an outer frame 1, an inner frame 2, a lifting cylinder 3, a pulley 4, a guide wheel in a hole 5, a lifting mechanism 6, a rotating plate 7, a hole cleaning mechanism 8, a hole measuring mechanism 9, an expansion joint 10, a side wheel 51, a center wheel 52, a mounting plate 53, a 61U-shaped frame 62, a sliding seat 63, a lifting screw rod 64, a rotating shaft 71, a worm wheel 72, a worm 73, a rotating motor 74, a hole cleaning wheel 81, a hole cleaning motor 82, a fixing plate 91, a scale guide rail 92, a slide rail 93, a measuring plate 94, a spring shaft 95, a laser range finder 96, a bidirectional screw rod 97, a movable piece 98, a first contact 99 and a second contact 910.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention;
referring to fig. 1-9, a detection device for a bridge expansion joint comprises an outer frame 1, wherein a storage battery, a display, a handle and a display electric connection processor are arranged on the outer frame 1, the display electric connection processor is used for calculating and displaying measured data, and the detection device further comprises: the inner frame 2 is movably arranged on the inner side of the outer frame 1 through a lifting cylinder 3, four pulleys 4 are arranged at the bottom of the outer frame 1, two pulleys 4 and two in-hole guide wheels 5 are arranged at the bottom end of the inner frame 2, and the two in-hole guide wheels 5 are used for moving along the expansion joint 10;
when the lifting cylinder 3 works, the inner frame 2 is driven downwards, so that the inner frame 2 and the outer frame 1 are in a state shown in a picture 1-2, in the state, two pulleys 4 and two in-hole guide wheels 5 at the bottom of the inner frame 2 fall down, and the two in-hole guide wheels 5 can be positioned in an expansion joint 10;
the two in-hole guide wheels 5 respectively comprise a central wheel 52 and two side wheels 51, the central wheel 52 is positioned between the two side wheels 51, the central wheel 52 and the side wheels 51 are arranged on the same wheel shaft, the central wheel 52 and the two side wheels 51 are coaxial, the diameter of the central wheel 52 is larger than that of the side wheels 51, the wheel shaft and the two mounting plates 53 are rotatably arranged through bearings, and the mounting plates 53 are fixedly arranged on the bottom surface of the inner frame 2. After the specific guide wheel 5 in the hole descends, the central wheel 52 can be positioned inside the expansion joint 10, the two side wheels 51 are positioned on the two sides of the expansion joint 10 and are in contact with the road surface of the bridge body, and the device can move along the expansion joint 10 by means of the guide wheels 5 in the two holes, so that subsequent detection operation is facilitated.
One side of the inner frame 2 close to the expansion joint 10 is provided with a lifting mechanism 6, the lifting mechanism 6 is used for controlling the rotating plate 7, the hole cleaning mechanism 8 and the hole measuring mechanism 9 to lift, and the lifting mechanism 6 also controls the rotating plate 7, the hole cleaning mechanism 8 and the hole measuring mechanism 9 to lift and rotate through a rotating mechanism.
The lifting mechanism 6 comprises a U-shaped frame 61 fixed on one side of the inner frame 2, a sliding seat 62 is arranged on the inner side of the U-shaped frame 61 in a sliding mode, the sliding seat 62 and a lifting screw 63 are installed in a threaded mode, and the lifting screw 63 is driven through a lifting motor 64.
The rotating mechanism comprises a rotating shaft 71 arranged between the rotating plate 7 and the sliding seat 62, one end of the rotating shaft 71 is fixed with the rotating plate 7, the other end of the rotating shaft 71 is rotatably installed with the sliding seat 62, a worm wheel 72 is installed on the rotating shaft 71, the worm wheel 72 is in meshing transmission with a worm 73, the worm 73 is driven by a rotating motor 74, and the rotating motor 74 is fixedly installed with the lifting seat 62.
Before the expansion joint 10 is detected, the rotating plate 7, the hole cleaning mechanism 8 and the hole measuring mechanism 9 are controlled to rotate to the state shown in fig. 1 through the mutual matching of the lifting mechanism 6 and the rotating mechanism, only the hole cleaning mechanism 8 is located in the expansion joint 10 at the moment, then the hole cleaning mechanism 8 is used for cleaning the expansion joint, impurities such as stones in the expansion joint 10 are clear, and the follow-up accurate detection is facilitated.
The hole cleaning mechanism 8 comprises a hole cleaning wheel 81 rotatably mounted at one end of the rotating plate 7, the hole cleaning wheel 81 is driven by a hole cleaning motor 82, and the hole cleaning motor 82 and the end part of the rotating plate 7 are fixedly mounted. The hole cleaning wheel 81 comprises wheels and a plurality of cleaning rods, and when the hole cleaning motor 82 is driven, the hole cleaning wheel 81 cleans sundries such as stones in the expansion joint 10 by using the wheels and the cleaning rods, so that the subsequent accurate detection is facilitated.
After cleaning the expansion joint 10, the rotating plate 7, the hole cleaning mechanism 8 and the hole measuring mechanism 9 are controlled to rotate to the state shown in fig. 2, at the moment, the hole cleaning mechanism 8 and the hole measuring mechanism 9 are all located in the expansion joint 10, the hole cleaning mechanism 8 is used for continuously cleaning the hole, and the hole measuring mechanism 9 is used for detecting the expansion joint 10.
The hole measuring mechanism 9 comprises two vertical parallel fixed plates 91, one of the fixed plates 91 is fixed at one end of the rotating plate 7 far away from the hole cleaning mechanism 8, the upper ends of the two fixed plates 91 are jointly provided with a scale guide rail 92, the lower ends of the two fixed plates 91 are jointly provided with a slide rail 93, two measuring plates 94 are jointly slidably arranged between the scale guide rail 92 and the slide rail 93, a spring shaft 95 is also jointly arranged between the two fixed plates 91, the spring shaft 95 comprises a transverse shaft and springs, the transverse shaft respectively slidably penetrates through the two measuring plates 94, the number of the springs is two, and one of the springs is arranged between the fixed plate 91 and the measuring plate 94 on one side; the upper parts of the two fixing plates 91 are respectively provided with a laser range finder 96, the two laser range finders 96 respectively measure the top end positions of the measuring plates 94 on the same side, and the measured data are displayed through a display.
When the hole measuring mechanism 9 detects the expansion joint 10, the two measuring plates 94 can rotate along with the rotation of the rotating mechanism, the springs on the spring shafts 95 can apply tension to the two measuring plates 94 in the expansion joint 10, so that the measuring plates 94 are attached to the inner wall of the expansion joint 10, and the distance between the outermost sides of the two measuring plates 94 is the size of the expansion joint 10 and is marked as X;
during the measurement, measure interval A and interval B between fixed plate 91 inner wall and the measurement board 94 outer wall of homonymy respectively through two laser range finder 96, the length of scale guide rail 92 is known data, marks as C, sets up the computational formula in the treater: the size of the expansion joint 10 can be calculated by the above formula.
The device can move along the expansion joint 10 through the guide wheel 5 in the hole, so that data of each expansion joint 10 can be measured in real time during moving.
In this embodiment, a bidirectional screw 97 is further rotatably disposed between the two fixing plates 91, two moving plates 98 are symmetrically and threadedly mounted on the bidirectional screw 97, a first contact 99 is disposed on one side of each moving plate 98 close to the measuring plate 94 on the same side, a second contact 910 is disposed on one side of the measuring plate 94 close to the moving plate 98 on the same side, and an alarm is disposed on the outer frame 1 and alarms when the first contact 99 on the same side contacts with the second contact 910.
The initial positions of the two moving pieces 98 are adjusted by rotating the bidirectional screw 97, when the size of the expansion joint 10 is enough to enable the measuring plate 94 to be in contact with the moving pieces 98, the first contact 99 can be in contact with the second contact 910, and therefore an alarm is triggered to give an alarm, and personnel can conveniently check and record data of the expansion joint 10 at the moment.
In this embodiment, the top surface of the scale guide 92 is provided with a groove, and the groove is provided with scale marks. The scale in the groove can be read out manually, and manual data check can be performed on the measurement data of the laser range finder 96.
Claims (8)
1. The utility model provides a detection device at bridge expansion joint, includes outrigger (1), is equipped with the battery on outrigger (1), display and handle, its characterized in that still includes:
the inner frame (2) is movably arranged on the inner side of the outer frame (1) through a lifting cylinder (3), four pulleys (4) are mounted at the bottom of the outer frame (1), two pulleys (4) and two in-hole guide wheels (5) are mounted at the bottom end of the inner frame (2), and the two in-hole guide wheels (5) are used for moving along the expansion joint (10);
one side of the inner frame (2) close to the expansion joint (10) is provided with a lifting mechanism (6), the lifting mechanism (6) is used for controlling the rotating plate (7), the hole cleaning mechanism (8) and the hole measuring mechanism (9) to lift, and the lifting mechanism (6) also controls the rotating plate (7), the hole cleaning mechanism (8) and the hole measuring mechanism (9) to lift and rotate through a rotating mechanism;
the hole cleaning mechanism (8) and the hole measuring mechanism (9) are respectively arranged at two ends of the rotating plate (7), the hole cleaning mechanism (8) is used for cleaning the expansion joint (10), and the hole measuring mechanism (9) is used for measuring the expansion joint (10).
2. The device for detecting the expansion joint of the bridge as claimed in claim 1, wherein the guide wheels (5) in the hole each comprise a central wheel (52) and two side wheels (51), the central wheel (52) is positioned between the two side wheels (51), the central wheel (52) and the side wheels (51) are mounted on the same axle, the axle is rotatably mounted with two mounting plates (53) through bearings, and the mounting plates (53) are fixedly mounted with the bottom surface of the inner frame (2).
3. The device for detecting the expansion joint of the bridge as claimed in claim 1, wherein the lifting mechanism (6) comprises a U-shaped frame (61) fixed on one side of the inner frame (2), a sliding base (62) is slidably arranged on the inner side of the U-shaped frame (61), the sliding base (62) is in threaded connection with a lifting screw rod (63), and the lifting screw rod (63) is driven by a lifting motor (64).
4. The device for detecting the bridge expansion joint as claimed in claim 3, wherein the rotating mechanism comprises a rotating shaft (71) arranged between the rotating plate (7) and the sliding base (62), one end of the rotating shaft (71) is fixed with the rotating plate (7), the other end of the rotating shaft (71) is rotatably installed with the sliding base (62), a worm wheel (72) is installed on the rotating shaft (71), the worm wheel (72) is in meshing transmission with a worm (73), the worm (73) is driven by a rotating motor (74), and the rotating motor (74) is installed and fixed with the lifting base (62).
5. The device for detecting the expansion joint of the bridge as claimed in claim 1 or 4, wherein the hole cleaning mechanism (8) comprises a hole cleaning wheel (81) rotatably mounted at one end of the rotating plate (7), the hole cleaning wheel (81) is driven by a hole cleaning motor (82), and the hole cleaning motor (82) is fixedly mounted with the end of the rotating plate (7).
6. The device for detecting the expansion joint of the bridge as claimed in claim 1, wherein the hole measuring mechanism (9) comprises two vertically parallel fixing plates (91), one of the fixing plates (91) is fixed at one end of the rotating plate (7) far away from the hole cleaning mechanism (8), the upper ends of the two fixing plates (91) are jointly provided with a scale guide rail (92), the lower ends of the two fixing plates (91) are jointly provided with a slide rail (93), two measuring plates (94) are arranged between the scale guide rail (92) and the slide rail (93) in a sliding way, a spring shaft (95) is also arranged between the two fixing plates (91) in a sliding way, the spring shaft (95) comprises a transverse shaft and springs, the transverse shaft respectively penetrates through the two measuring plates (94) in a sliding way, the number of the springs is two, one of the springs is arranged between the fixed plate (91) and the measuring plate (94) on one side; laser range finders (96) are installed on the upper portions of the two fixing plates (91), the two laser range finders (96) measure the top end positions of the measuring plates (94) on the same side respectively, and measured data are displayed through a display.
7. The device for detecting the expansion joint of the bridge as claimed in claim 6, wherein a bidirectional screw rod (97) is further rotatably arranged between the two fixing plates (91), two moving plates (98) are symmetrically and threadedly mounted on the bidirectional screw rod (97), a first contact (99) is arranged on one side of each moving plate (98) close to the measuring plate (94) on the same side, a second contact (910) is arranged on one side of the measuring plate (94) close to the moving plate (98) on the same side, an alarm is arranged on the outer frame (1), and the alarm gives an alarm when the first contact (99) on the same side is contacted with the second contact (910).
8. The device for detecting the expansion joint of the bridge as claimed in claim 6, wherein the top surface of the scale guide rail (92) is provided with a groove, and the groove is internally provided with scale marks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210871844.8A CN115014255A (en) | 2022-07-22 | 2022-07-22 | Detection device for bridge expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210871844.8A CN115014255A (en) | 2022-07-22 | 2022-07-22 | Detection device for bridge expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115014255A true CN115014255A (en) | 2022-09-06 |
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ID=83080586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210871844.8A Pending CN115014255A (en) | 2022-07-22 | 2022-07-22 | Detection device for bridge expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115014255A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117516461A (en) * | 2024-01-05 | 2024-02-06 | 湖北省高创公路工程咨询监理有限公司 | Device and method suitable for monitoring expansion joint of seamless bridge |
-
2022
- 2022-07-22 CN CN202210871844.8A patent/CN115014255A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117516461A (en) * | 2024-01-05 | 2024-02-06 | 湖北省高创公路工程咨询监理有限公司 | Device and method suitable for monitoring expansion joint of seamless bridge |
| CN117516461B (en) * | 2024-01-05 | 2024-03-26 | 湖北省高创公路工程咨询监理有限公司 | Device and method suitable for monitoring expansion joint of seamless bridge |
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