CN212903148U

CN212903148U - Arch dam body deformation monitoring devices

Info

Publication number: CN212903148U
Application number: CN202021747706.1U
Authority: CN
Inventors: 靳润芳
Original assignee: Nanfang Zhongjin Survey And Design Co Ltd
Current assignee: Nanfang Zhongjin Survey And Design Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-06
Anticipated expiration: 2030-08-19

Abstract

The utility model relates to a water conservancy technical field just discloses an arch dam body deformation monitoring devices, including the first order horizontal pole, the right-hand member fixedly connected with axis of rotation of first order horizontal pole, the left side of axis of rotation is rotated and is connected with the second level horizontal pole, the axis of rotation right side of second level horizontal pole left end is rotated and is connected with third level horizontal pole, the right-hand member fixedly connected with connecting piece of third level horizontal pole, the right side of connecting piece is rotated and is connected with the detector base, the bottom fixedly connected with radio frequency transmitter of detector base. Through making first order horizontal pole by with mounting platform parallel state rotate ninety degrees to be in the vertical state with mounting platform, the detector base of installing radio frequency emitter this moment just is located the top on arch dam body inclined plane to can avoid the influence of dam body inclination to the measurement between radio frequency emitter and the deformation sensor, thereby reach and avoid the dam body inclination to carry out point-to-point accurate measuring effect.

Description

Arch dam body deformation monitoring devices

Technical Field

The utility model relates to a water conservancy technical field specifically is an arch dam body deformation monitoring devices.

Background

In recent years, along with the rapid development of hydraulic engineering construction in China, the dam construction scale is larger and more complex, and the safety problem of the dam is more and more prominent. The arch dam is a space shell structure fixedly connected to bedrock, belongs to a high-order hyperstatic structure, is a dam type with good economical efficiency and safety, and is widely applied. Although various safety factors are considered as much as possible in the design stage of the arch dam, a plurality of uncertain factors are still encountered in the construction and operation processes, and the construction quality cannot reach the optimal state due to the interference of various factors, so that the deformation monitoring of the dam is particularly important.

The dam deformation monitoring can comprehensively reflect and measure the working state of the dam, and whether the dam body structure is normal, reliable and safe, and is beneficial to safety management and timely decision-making of the dam. When the existing arch dam body deformation detection device is used for signal transmission between detection devices, the dam body has an inclination angle, so that accurate point-to-point signal transmission cannot be achieved, and the existence of measurement errors is easily caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an arch dam body deformation monitoring devices possesses and avoids the dam body inclination to carry out point-to-point accurate measurement's advantage to dam body deformation, has solved current measuring device and can not carry out point-to-point accurate measurement's problem to dam body deformation.

(II) technical scheme

Carry out point-to-point accurate measurement purpose to dam body deformation for realizing above-mentioned dam body inclination of avoiding, the utility model provides a following technical scheme: a deformation monitoring device for an arch dam body comprises an installation platform, wherein a rotating column is rotatably connected to the top of the installation platform, a first-level cross rod is fixedly connected to the top of the rotating column, a rotating shaft is fixedly connected to the right end of the first-level cross rod, a second-level cross rod is rotatably connected to the left side of the rotating shaft, a third-level cross rod is rotatably connected to the right side of the rotating shaft at the left end of the second-level cross rod, a connecting piece is fixedly connected to the right end of the third-level cross rod, a detector base is rotatably connected to the right side of the connecting piece, a radio frequency transmitter is fixedly connected to the bottom of the detector base, a pull ring is fixedly connected to the top of the detector base, a support column is fixedly connected to the top of the left end of the first-level cross rod, a rotating wheel is rotatably connected, the left end top fixedly connected with guide arm of supporting seat, the straight-teeth gear has been cup jointed in the outside activity of guide arm, the right-hand member top fixedly connected with stand of supporting seat, the top inside of stand is rotated and is connected with the round gear, mounting platform's inside is pegged graft and is had the guide rail, the guide rail groove has been seted up on the surface of guide rail, the well accuse platform is installed to mounting platform's front side, the bottom fixedly connected with of guide rail encircles the dam body, the inside fixed mounting that encircles the dam body has deformation sensor.

Preferably, a protruding sliding block is fixedly installed inside the front side wall of the installation platform, the width of the sliding block is equal to that of the guide rail groove, and a sliding guide wheel is installed inside the installation platform and installed on the rear side of the protruding sliding block.

Preferably, the bottom of the rotating column is provided with a rotating motor, the length of the first-stage cross rod is equal to that of the mounting platform, and the part, located on the left side of the rotating column, of the first-stage cross rod is made of lead blocks.

Preferably, the rotation angle of the rotation shaft at the right end of the first-stage cross rod is zero to one hundred and eighty degrees, the rotating wheel is rotatable, and the length of the cable is equal to the sum of the lengths of the first-stage cross rod, the second-stage cross rod, the third-stage cross rod and the detector base.

Preferably, the radio frequency transmitter is connected with the mounting platform through an electric lead, a wireless transmission module is further installed inside the mounting platform, the deformation sensor is connected with the radio frequency transmitter through a wireless radio frequency signal, and a relay transmission module is installed inside the center console.

Preferably, the straight gear is rotatably connected with the circular gear in a gear meshing manner, the straight gear is provided with a vertical hollow groove, and the diameter of the hollow groove is equal to that of the guide rod.

(III) advantageous effects

Compared with the prior art, the utility model provides an arch dam body warp monitoring devices possesses following beneficial effect:

1. the arch dam body deformation monitoring device slides to the position above a measuring point to be monitored along the guide rail through the mounting platform, by rotating the second-stage cross rod around the rotating shaft at the right end of the first-stage cross rod to be in the same straight line with the first-stage cross rod, then the third-level cross bar, the first-level cross bar and the second-level cross bar are all in the same straight line state by lifting the cable, the first-level cross bar is rotated by ninety degrees from a state of being parallel to the mounting platform to a state of being vertical to the mounting platform by rotating the rotating column, at the moment, the detector base provided with the radio frequency emitter is just positioned at the top of the inclined plane of the arch dam body, the dam body inclination angle measurement device is located at the top of the deformation sensor, so that the influence of the dam body inclination angle on measurement between the radio frequency transmitter and the deformation sensor can be avoided, and the effect of avoiding the dam body inclination angle to carry out point-to-point accurate measurement is achieved.

2. This arch dam body deformation monitoring devices, through rotating the round gear, it rotates along the guide arm to drive the spur gear, because guide arm and spur gear all are the state of slope, so the spur gear slides along the direction of slope along the guide arm under the drive of round gear, the spur gear top begins to extrude second level horizontal pole bottom this moment, make the second level horizontal pole rotate round the axis of rotation of first level horizontal pole right-hand member, make the second level horizontal pole can extend and open, thereby reached and provided the effect of power for the extension of second level horizontal pole.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the unfolding structure of the present invention;

FIG. 3 is a schematic front view of the present invention;

fig. 4 is a schematic side view of the present invention.

In the figure: the method comprises the following steps of 1-mounting a platform, 2-rotating columns, 3-first-stage cross bars, 4-rotating shafts, 5-second-stage cross bars, 6-third-stage cross bars, 7-connecting pieces, 8-detector bases, 9-radio frequency transmitters, 10-pull rings, 11-rotating wheels, 12-supporting columns, 13-cables, 14-supporting seats, 15-guide rods, 16-straight gears, 17-upright columns, 18-circular gears, 19-guide rails, 20-guide rail grooves, 21-central control tables, 22-arch dam bodies and 23-deformation sensors.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a device for monitoring the deformation of an arch dam body comprises a mounting platform 1, wherein a convex sliding block is fixedly mounted inside the front side wall of the mounting platform 1, the width of the sliding block is equal to the width of a guide rail groove 20, a sliding guide wheel is mounted inside the mounting platform 1, and the guide wheel is mounted on the rear side of the convex sliding block. Since the mounting platform 1 needs to be moved in position during dam body monitoring and cannot be monitored in only one fixed position, the guide rail 19 is mounted on the surface of the arch dam 22, and a sliding track is provided for the movement of the mounting platform 1 through the guide rail 19. The guide rail 19 does not provide power for the sliding of the mounting platform 1, and the sliding of the mounting platform 1 needs to provide a power source, so that a sliding guide wheel is arranged inside the mounting platform 1 to drive the sliding guide wheel to slide along the guide rail 19. The top of mounting platform 1 is rotated and is connected with and rotates post 2, rotates the bottom of post 2 and installs the rotation motor, and the length of first order horizontal pole 3 equals mounting platform 1's length, and first order horizontal pole 3 lies in and rotates 2 left sides parts of post and make by the lead block. In the process of transmitting energy to the deformation sensor 23 by the radio frequency transmitter 9, the transmission distance of the energy is shortened only by rotating the radio frequency transmitter 9 to the top of the deformation sensor 23, so that the radio frequency transmitter 9 is required to be driven to the position right above the top of the deformation sensor 23 by rotating the rotating column 2. In order to facilitate the collection and placement of the first-stage cross rods 3, the length of the first-stage cross rods 3 is designed to be as long as that of the mounting platform 1, so that the placement of the first-stage cross rods 3 on the top of the mounting platform 1 can be maintained, and the first-stage cross rods cannot be tilted outwards. When the first-stage cross rod 3, the second-stage cross rod 5 and the third-stage cross rod 6 are completely extended, the weight on the right side of the rotating column 2 is increased, and the weight of the first-stage cross rod 3 on the left side of the rotating column 2 is designed to be a little heavier for balancing the weight, so that the weight is evenly distributed. The top of the rotating column 2 is fixedly connected with a first-level cross rod 3 through welding, the rotating angle of a rotating shaft 4 at the right end of the first-level cross rod 3 is zero to one hundred eighty degrees, a rotating wheel 11 can rotate, and the length of a mooring rope 13 is equal to the sum of the lengths of the first-level cross rod 3, the second-level cross rod 5, the third-level cross rod 6 and the detector base 8. When the second-level cross rod 5 and the third-level cross rod 6 need to be unfolded, the first-level cross rod 3 and the second-level cross rod 5 need to be changed into a straight line, and the second-level cross rod 5 rotates around the rotating shaft 4 under the pushing of the straight gear 16. In order to keep the second-level cross bar 5 and the first-level cross bar 3 on the same straight line, when the second-level cross bar 5 rotates around the rotating shaft 4 to be in the same straight line with the first-level cross bar 3, the second-level cross bar cannot rotate continuously, so that the rotating shaft 4 can rotate at an angle which needs to be kept between zero and one hundred eighty degrees, and after the first-level cross bar 3, the second-level cross bar 5 and the third-level cross bar 6 are in the same straight line, a pulling force is applied to the pull ring 10 through the cable 13 to support the first-level cross bar 3, the second-level cross bar 5 and the third-level cross bar 6, so that partial pressure is relieved for the rotating. By changing the length of the cable 13 by turning the wheel 11, the angle between the tertiary rail 6 and the secondary rail 5 can be changed to maintain the two in the same straight line. The right-hand member of first order horizontal pole 3 is through welded fastening connection with axis of rotation 4, the left side of axis of rotation 4 is rotated and is connected with second level horizontal pole 5, 4 right sides of axis of rotation of 5 left ends of second level horizontal pole are rotated and are connected with third level horizontal pole 6, the right-hand member of third level horizontal pole 6 is through welded fastening connection with connecting piece 7, the right side of connecting piece 7 is rotated and is connected with detector base 8, welded fastening connection has radio frequency emitter 9 is passed through to detector base 8's bottom, be connected through the electric lead between radio frequency emitter 9 and the. The inside of mounting platform 1 still installs wireless transmission module, carries out wireless radio frequency signal connection between deformation sensor 23 and the radio frequency transmitter 9, and central console 21 internally mounted has relay transmission module. During monitoring, the radio frequency transmitter 9 transmits radio frequency signals to the deformation sensor 23, the deformation sensor 23 is activated to start monitoring after receiving the energy of the radio frequency signals, data of dam body deformation are collected through the sensor on the deformation sensor 23, then the deformation sensor 23 transmits the data signals to the wireless signal receiving module inside the mounting platform 1 through wireless transmission, and then the data signals are transmitted to the background through the relay transmission module to be processed, so that data collection and analysis processing are completed. Welded fastening is passed through at detector base 8's top and is connected with pull ring 10, welded fastening is passed through on the left end top of first order horizontal pole 3 and is connected with support column 12, the top of support column 12 is rotated and is connected with runner 11, through welded fastening be connected with hawser 13 between runner 11 and the pull ring 10, welded fastening is passed through to mounting platform 1's front side bottom and is connected with supporting seat 14, welded fastening is passed through on the left end top of supporting seat 14 and is connected with guide arm 15, straight-teeth gear 16 has been cup jointed in the outside activity of guide arm 15, rotate through gear engagement's mode between straight-teeth gear 16 and the round gear 18 and be connected, vertical hollow groove has been seted up to straight-teeth gear 16, the diameter. When needs expand second level horizontal pole 5, through the rotation of round gear 18, drive spur gear 16 and slide to the diagonal direction, when spur gear 16 rose, can push up second level horizontal pole 5 and rotate along axis of rotation 4 to finally make second level horizontal pole 5 can be changeed to the state that is in the same straight line with first level horizontal pole 3 round axis of rotation 4. In order to provide a track for the sliding of the spur gear 16, a hollow groove is formed inside the spur gear 16, and a guide rail is formed for the sliding of the spur gear 16 by inserting the guide rod 15 into the hollow groove. The right-hand member top of supporting seat 14 is through welded fastening be connected with stand 17, and the top internal rotation of stand 17 is connected with round gear 18, and the inside of mounting platform 1 is pegged graft and is had guide rail 19, and guide rail groove 20 has been seted up on the surface of guide rail 19, and the central console 21 is installed to the front side of mounting platform 1, and welded fastening is connected with arch dam body 22 in the bottom of guide rail 19, and the inside fixed mounting of arch dam body 22 has deformation sensor 23.

The working principle is as follows: when dam body monitoring is needed, the mounting platform 1 slides to the top of a point to be measured along the guide rail 19, and then the spur gear 16 is driven to slide upwards along the guide rod 15 by the rotation of the circular gear 18, and because the spur gear 16 slides in an oblique direction, the spur gear 16 can rotate around the rotating shaft 4 at the right end of the first-stage cross rod 3 against the second-stage cross rod 5. When the second cross bar 5 rotates to be in the same straight line with the first cross bar 3, the second cross bar does not rotate any more, then the cable 13 provides a pulling force for the detector base 8, the third cross bar 6 and the second cross bar 5 are pulled to form a straight line state, and the first cross bar 3, the second cross bar 5 and the third cross bar 6 are in a completely extended state and are in the same straight line. The rotation column 2 drives the first-stage cross rod 3 to rotate, the first-stage cross rod 3 is rotated to the front side vertical state of the first-stage cross rod 3 and the mounting platform 1 from the state parallel to the mounting platform 1, at the moment, the first-stage cross rod 3, the long rod formed by the second-stage cross rod 5 and the third-stage cross rod 6 covers the inclined plane of the arch dam body 22, the radio frequency transmitter 9 is located at the top of the deformation sensor 23, the transmission of signals between the radio frequency transmitter 9 and the deformation sensor 23 is not influenced by the inclined plane of the arch dam body 22 any more, and the radio frequency transmitter 9 can avoid the inclination angle of the dam body to realize the point-to-point accurate measurement.

In summary, the arch dam body deformation monitoring device slides to the upper part of a measuring point to be monitored along the guide rail 19 through the mounting platform 1, the second-level cross bar 5 rotates to be in the same straight line state with the first-level cross bar 3 through the rotating shaft 4 at the right end of the first-level cross bar 3, then the third-level cross bar 6, the first-level cross bar 3 and the second-level cross bar 5 are in the same straight line state through the lifting of the cable 13, then the first-level cross bar 3 rotates ninety degrees from the parallel state with the mounting platform 1 to be in the vertical state with the mounting platform 1 through the rotation of the rotating column 2, at this time, the detector base 8 provided with the radio frequency emitter 9 is just positioned at the top of the inclined plane of the arch dam body 22, namely, the top of the deformation sensor 23, so that the influence of the dam body inclination angle on the measurement between the radio frequency emitter 9 and the deformation, the effect of avoiding the inclination angle of the dam body to carry out point-to-point accurate measurement is achieved. Through rotating circular gear 18, drive spur gear 16 and rotate along guide arm 15, because guide arm 15 and spur gear 16 all are the state of slope, so spur gear 16 slides at the direction of slope along guide arm 15 under circular gear 18's drive, spur gear 16 top begins to extrude second level horizontal pole 5 bottom this moment, make second level horizontal pole 5 rotate round the axis of rotation 4 of 3 right-hand members of first level horizontal pole, thereby make second level horizontal pole 5 can extend and open, reach the effect that provides power for the extension of second level horizontal pole 5.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides an arch dam body deformation monitoring devices, includes mounting platform (1), its characterized in that: the top of the mounting platform (1) is rotatably connected with a rotating column (2), the top of the rotating column (2) is fixedly connected with a first-stage transverse rod (3), the right end of the first-stage transverse rod (3) is fixedly connected with a rotating shaft (4), the left side of the rotating shaft (4) is rotatably connected with a second-stage transverse rod (5), the right side of the rotating shaft (4) at the left end of the second-stage transverse rod (5) is rotatably connected with a third-stage transverse rod (6), the right end of the third-stage transverse rod (6) is fixedly connected with a connecting piece (7), the right side of the connecting piece (7) is rotatably connected with a detector base (8), the bottom of the detector base (8) is fixedly connected with a radio frequency transmitter (9), the top of the detector base (8) is fixedly connected with a pull ring (10), and the top of the, the top of the supporting column (12) is rotatably connected with a rotating wheel (11), a cable (13) is fixedly connected between the rotating wheel (11) and the pull ring (10), a supporting seat (14) is fixedly connected to the bottom of the front side of the mounting platform (1), a guide rod (15) is fixedly connected to the top of the left end of the supporting seat (14), a straight gear (16) is movably sleeved outside the guide rod (15), the top of the right end of the supporting seat (14) is fixedly connected with an upright post (17), a circular gear (18) is rotatably connected inside the top of the upright post (17), a guide rail (19) is inserted into the mounting platform (1), a guide rail groove (20) is formed in the surface of the guide rail (19), a center console (21) is installed on the front side of the installation platform (1), the bottom of guide rail (19) fixedly connected with encircles dam body (22), the inside fixed mounting of hunch dam body (22) has deformation sensor (23).

2. The arch dam body deformation monitoring device of claim 1, wherein: the inside fixed mounting of the preceding lateral wall of mounting platform (1) has bellied sliding block, and the width of this sliding block is equal to the width of guide rail groove (20), the internally mounted of mounting platform (1) has the slip guide pulley, and this guide pulley is installed in the rear side of bellied sliding block.

3. The arch dam body deformation monitoring device of claim 1, wherein: the bottom of rotating post (2) is installed and is rotated the motor, the length of first order horizontal pole (3) is equal to the length of mounting platform (1), first order horizontal pole (3) are located and rotate post (2) left side part and are made by the lead block.

4. The arch dam body deformation monitoring device of claim 1, wherein: zero to one hundred eighty degrees when the turned angle of axis of rotation (4) of first order horizontal pole (3) right-hand member, runner (11) are rotatable, the length of hawser (13) equals the sum of the length of first order horizontal pole (3), second level horizontal pole (5), third level horizontal pole (6) and detector base (8).

5. The arch dam body deformation monitoring device of claim 1, wherein: the wireless sensor is characterized in that the radio frequency transmitter (9) is connected with the mounting platform (1) through an electric lead, a wireless transmission module is further mounted inside the mounting platform (1), the deformation sensor (23) is connected with the radio frequency transmitter (9) through a wireless radio frequency signal, and a relay transmission module is mounted inside the central console (21).

6. The arch dam body deformation monitoring device of claim 1, wherein: the straight gear (16) is rotatably connected with the circular gear (18) in a gear meshing mode, a vertical hollow groove is formed in the straight gear (16), and the diameter of the hollow groove is equal to that of the guide rod (15).