Measuring device for continuous rigid frame bridge construction

Abstract

The invention belongs to the technical field of bridge measurement, and particularly relates to a measuring device for continuous rigid frame bridge construction, which comprises a camera module and a tripod, the camera module is mounted at the top of the tripod, and the camera module and the tripod are placed according to requirements and then are filed and measured; the supporting legs are hinged to the bottom of the tripod, and supporting rods are connected into the supporting legs in a sliding mode; the extension rods, close to each other, of the two supporting legs swing to be close to each other, the telescopic rods at one ends of the extension rods gradually stretch out from the inside, and the end portions, close to each other, of the telescopic rods of the two supporting legs are close to each other, so that the extension rods drive the telescopic rods to be opened and extend to make contact with the ground while the supporting legs are opened. The contact points of the supporting legs and the ground are expanded, the supporting performance of the tripod is improved, that is, each supporting leg is provided with two telescopic rods which are in contact with the ground for supporting, the stability degree of the measuring device is improved, and the measuring device is prevented from being blown or inclined by parts passing through the bridge.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge measurement, in particular to a measurement device for continuous rigid frame bridge construction. Background Art

[0002] Bridge construction survey is one of the important contents of bridge engineering survey and an indispensable and important basic work in bridge construction. It runs through the whole process of bridge construction. In recent years, people have attached more and more importance to the construction of bridge projects. Bridge construction survey contains a lot of contents and is an important link in bridge engineering, which is directly related to the quality and progress of construction. It includes positioning and setting out, detail setting out, deformation observation, etc. Common deformation monitoring methods are as follows: adopting traditional geodetic methods, that is, using traditional measuring instruments to measure the changes in angles, lengths and heights to measure deformation; photogrammetric methods, including bridge engineering photography and ground three-dimensional photogrammetric measurement;

[0003] Among them, bridge engineering photography in photogrammetry methods usually requires long-term shooting, especially when shooting scenes such as the construction process of construction sites, bridges, and tunnels; long-term shooting can better record the details and changes in the construction process, ensuring that the final effect can fully display the entire process of the project; the wind on the bridge is usually stronger than the wind on flat ground. The main reasons include that the bridge deck is generally open and there are no obstacles such as buildings and trees, which makes the wind encounter less resistance when flowing on the bridge deck and the wind speed is relatively large; and the formation of wind is due to the difference in air pressure, and the change in air pressure on the bridge deck may cause the wind speed to increase; in addition, the shape and structure of the bridge deck may also affect the flow of wind, forming rhythmic vortices, further enhancing the wind force; therefore, during the long-term bridge engineering photography process, a slight breeze may only slightly affect the image stability, while a strong wind may cause camera shaking, blurred images, and even damage to the equipment; and after the gradual completion of the bridge construction, operations such as changing the photography site are required, and the conventional fixing method cannot have the effects of wind resistance and easy site change. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a measuring device for continuous rigid frame bridge construction.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention proposes a measuring device for continuous rigid frame bridge construction, including a camera module and a tripod, the camera module is installed on the top of the tripod, and the camera module and the tripod are placed as required to create files and measure; and also includes:

[0006] The legs are hinged at the bottom of the tripod, and a support rod is slidably connected inside the legs, and one end of the support rod passes through one end of the legs to contact the ground, and the other end is sleeved with a rotating drum; the rotating drum is threadedly connected to the support rod, and the rotating drum is rotatably connected to the lower half of the legs, and the rotating drum is connected to a No. 1 motor arranged in the legs; a level is installed on one side of the tripod, and a controller is arranged in the tripod to control the No. 1 motor, and the No. 1 motor drives the legs to extend through the rotating drum, so as to meet the adjustment of the tripod according to the level; a damper is arranged between the tripod and the camera module, and the camera module filters vibration through the damper;

[0007] An extension rod is hinged to one side of the leg through a torsion spring, and the end of the extension rod away from the ground is located at the lower half of the leg; a telescopic rod is slidably connected to the inner side of the end of the extension rod close to the ground, and a pull rope is connected to the extension rods of adjacent legs that are close to each other; an electromagnet No. 1 and an electromagnet No. 2 are respectively provided on the extension rod and the telescopic rod, and both the electromagnet No. 1 and the electromagnet No. 2 are in the shape of long strips, the electromagnet No. 1 is used for adsorption of the extension rod and the leg, and the electromagnet No. 2 is used for adsorption of the extension rod and the telescopic rod; a power supply is installed at the lower half of the leg, and the power supply supplies power to the measuring device.

[0008] Preferably, grooves are provided on both sides of the supporting legs, and a No. 1 chain is slidably connected to the inner wall of the groove, and the bottom plate of the No. 1 chain slides on the inner wall of the groove, one end of the No. 1 chain is connected to the end of the groove away from the ground through a spring, and the other end of the No. 1 chain is connected to the telescopic rod; the No. 1 chain is composed of a plurality of connecting blocks hinged to each other, and the No. 1 chain is set to swing unidirectionally toward the top; a gripping rod is hinged to the bottom of the connecting block through a torsion spring.

[0009] Preferably, a cylinder is provided at the bottom of the gripping rod, and the cylinder is arc-shaped, and spikes are evenly provided on the surface of the cylinder.

[0010] Preferably, a guide shaft is provided in the groove, and the No. 1 chain bypasses the guide shaft and is connected to the telescopic rod; the guide shaft is a hollow structure, and an outlet is opened on the surface of the guide shaft, and the outlet faces the telescopic rod; a winding shaft is rotatably connected to the guide shaft through a torsion spring, and the No. 2 chain is wound on the winding shaft; the No. 2 chain is composed of a plurality of hinged blocks, and one end of the No. 2 chain is connected to one end of the No. 1 chain, and the first block in the No. 2 chain is stuck on the side of the first connecting block in the No. 1 chain.

[0011] Preferably, a slide groove is provided in the support leg, and a slide rod is slidably connected in the slide groove, one end of the slide rod is connected to the support rod, and the other end is connected to the guide shaft; the connecting block at one end of the No. 1 chain is slidably connected to the surface of the telescopic rod.

[0012] Preferably, a pressure block is provided on the surface of the guide shaft, and the No. 1 chain and the No. 2 chain pass through the hollow portion in the center of the pressure block, and the No. 2 chain is engaged with the No. 1 chain after being squeezed by the pressure block.

[0013] Preferably, one end of the second electromagnet is located at the bottom of the telescopic rod, and a fixing hole is provided at the bottom of the telescopic rod, in which a conical fixing block is slidably connected via a spring, the sharp end of the fixing block contacts the ground, and the other end is located above the bottom of the telescopic rod.

[0014] Preferably, the interior of the fixed block is a hollow structure, and barbs are evenly arranged inside the fixed block, with the sharp ends of the barbs away from the sharp end of the fixed block; the barbs are symmetrically arranged with respect to the central axis of the fixed block, and a lever is hinged at the bottom center position of the fixed block, and the barbs are fixedly connected to one side of the lever and face outside the fixed block.

[0015] Preferably, the tripod is slidably connected to a vertical pole at the center position of the bottom, and a rotating wheel is rotatably connected to the bottom of the vertical pole, and the axis of the rotating wheel is connected to a No. 2 motor arranged on the vertical pole; a spring is provided between each of the legs and the vertical pole, and each leg is connected to the rotating wheel through a No. 1 rope, and the No. 1 rope is wound in the rotating wheel.

[0016] Preferably, the bottom of the leg is slidably connected to a scraper via a spring, and the bottom of the scraper contacts the ground.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A measuring device for continuous rigid frame bridge construction described in the present invention, wherein the extension rods with two legs close to each other swing close to each other, and the telescopic rods at one end of the extension rods gradually extend from the inside to meet the state where the ends of the telescopic rods with the two legs close to each other are close to each other, in this way, the extension rods drive the telescopic rods to open and extend to touch the ground while the legs are opened, thereby expanding the contact points between the legs and the ground and increasing the support of the tripod, that is, each leg has two telescopic rods touching the ground for support, thereby improving the stability of the measuring device and preventing the measuring device from being blown or tilted by branches passing on the bridge.

[0019] 2. The measuring device for continuous rigid frame bridge construction described in the present invention has a threaded connection between the rotating drum and the support rod, so that the rotating drum can drive the support rod to extend or retract the support legs by forward or reverse rotation, and adjust the distance between the support legs and the ground, so as to achieve the purpose of automatically adjusting the measuring device, which brings convenience to personnel in adjusting the measuring device, thereby improving the convenience during use; and, during long-term video recording, if the ground where the measuring device is located is deformed or other factors cause the measuring device to be skewed, the measuring device can automatically achieve automatic correction through the cooperation of the level, controller and motor No. 1, thereby improving the video stability and video quality of long-term measurement work and avoiding the impact of captured images. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 This is the internal schematic diagram after the telescopic rod is placed;

[0023] Figure 3 This is the state diagram of the No. 2 motor pulling the outrigger through the No. 1 rope;

[0024] Figure 4 This is a state diagram of chain No. 1 and chain No. 2 sliding on one side of the telescopic rod;

[0025] Figure 5 This is a state diagram of the support rod driving the guide shaft to rise and fall through the slide rod;

[0026] Figure 6 This is the state diagram of the guide shaft driving the No. 1 chain and the No. 2 chain to rise and fall;

[0027] In the figure: camera module 1, tripod 11, legs 12, support rod 13, rotating drum 14, motor No. 1 15, level 16, extension rod 2, telescopic rod 21, pull rope 22, electromagnet No. 1 23, electromagnet No. 2 24, power supply 25, groove 26, chain No. 1 27, connecting block 28, gripping rod 29, cylinder 3, spike 31, guide shaft 4, outlet 41, winding shaft 42, chain No. 2 43, plug 44, slide groove 45, slide rod 46, pressure block 47, fixing hole 5, fixing block 51, barb 52, lever 53, vertical rod 54, rotating wheel 55, motor No. 2 56, rope No. 1 57, scraper 58. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] A measuring device for continuous rigid frame bridge construction, as shown in the accompanying drawings of the specification Figure 1-Figure 6 As shown, it includes a camera module 1 and a tripod 11, the camera module 1 is installed on the top of the tripod 11, and the camera module 1 and the tripod 11 are placed as required to create files and measure;

[0031] The camera module 1 is a conventional instrument used for bridge engineering photography, and the tripod 11 is a conventional component used to support the camera module 1;

[0032] Also includes:

[0033] The leg 12 is hinged at the bottom of the tripod 11, and a support rod 13 is slidably connected in the leg 12, and one end of the support rod 13 passes through one end of the leg 12 to contact the ground, and the other end is sleeved with a rotating drum 14; the rotating drum 14 is threadedly connected to the support rod 13, and the rotating drum 14 is rotatably connected to the lower half of the leg 12, and the rotating drum 14 is connected to a No. 1 motor 15 set in the leg 12; a level 16 is installed on one side of the tripod 11, and a controller is provided in the tripod 11 to control the No. 1 motor 15, and the No. 1 motor 15 drives the leg 12 to extend through the rotating drum 14, so as to meet the adjustment of the tripod 11 according to the level 16; a damper is provided between the tripod 11 and the camera module 1, and the camera module 1 filters vibration through the damper;

[0034] An extension rod 2, wherein the extension rod 2 is hinged to one side of the leg 12 through a torsion spring, and the end of the extension rod 2 away from the ground is located at the lower half of the leg 12; a telescopic rod 21 is slidably connected to the inner side of the end of the extension rod 2 close to the ground, and a pull rope 22 is connected to the extension rod 2 where adjacent legs 12 are close to each other; a No. 1 electromagnet 23 and a No. 2 electromagnet 24 are respectively provided on the extension rod 2 and the telescopic rod 21, and the No. 1 electromagnet 23 and the No. 2 electromagnet 24 are both in the shape of long strips, the No. 1 electromagnet 23 is used for adsorption of the extension rod 2 and the leg 12, and the No. 2 electromagnet 24 is used for adsorption of the extension rod 2 and the telescopic rod 21; a power supply 25 is installed at the lower half of the leg 12, and the power supply 25 supplies power to the measuring device;

[0035] The first motor 15 is a conventional electric mechanism with forward and reverse functions, the level 16 is a conventional measuring tool for measuring horizontal and vertical positions, and the level 16 contains a horizontal measuring tool and a vertical measuring tool, and the damper is a vibration filter component used in conventional bridge engineering photography; the first electromagnet 23 and the second electromagnet 24 are conventional long strip types, and a conventional power supply 25 with a power on and off function is selected to supply power to the measuring device; the damper is a conventional vibration reduction mechanism used in engineering measuring tools, and the damper is used for vibration filtering of the camera module 1 to improve the measurement accuracy of the measuring device; the controller is a conventional control component used in conjunction with electrical appliances;

[0036] Specific work flow: When placing the measuring device, the personnel open the legs 12 and place them on the bridge deck. Since the telescopic rods 21 of the two legs 12 approaching each other are pulled by the pull rope 22, the ends of the telescopic rods 21 of the two adjacent legs 12 remain close to each other during the opening process, that is, the two legs 12 are gradually opened, and the extension rods 2 of the two legs 12 approaching each other swing close to each other, and the telescopic rod 21 at one end of the extension rod 2 gradually extends from the inside to meet the state that the ends of the telescopic rods 21 of the two legs 12 approaching each other are close to each other. In this way, the extension rod 2 drives the telescopic rod 21 to open and extend to touch the ground while the legs 12 are opened, thereby expanding the contact point between the legs 12 and the ground. The support of the tripod 11 is increased, that is, each leg 12 has two telescopic rods 21 that touch the ground for support, thereby improving the stability of the measuring device and preventing the measuring device from being blown or tilted by the branches passing through the bridge; and, when the legs 12 are opened, the extension rod 2 and the telescopic rod 21 are automatically opened and extended to touch the ground, thereby reducing the need for personnel to reinforce the measuring device through additional operations, thereby improving the convenience of using the measuring device; and, if some parts on the legs 12 have been used for a long time and cannot be fully unfolded, personnel can still manually adjust the extension rod 2 and the telescopic rod 21 to swing to a specified position or angle to complete the support work, thereby increasing the flexibility of manual and automatic conversion, thereby improving the flexibility of the measuring device;

[0037] When the legs 12 are opened and placed, the ends of the support rod 13 and the ends of the telescopic rod 21 touch the ground, and the controller adjusts the measuring device according to the level 16, and the adjustment method is, for example:

[0038] When gravity is used as the reference, the measuring device is in a vertical downward state, and the vertical measuring tool in the level 16 is used to adjust the measuring device to complete the bridge engineering photography work based on gravity as the reference of the measured bridge. For example, during the construction of a building, a rope needs to be hung next to the load-bearing components of the building as a reference for verticality, so that workers can detect the verticality of the load-bearing components of the building for a long time. Based on this principle, long-term video detection is performed during the construction of the bridge;

[0039] When shooting with the bridge deck as the plane, the measuring device is kept parallel to the bridge deck, and the horizontal measuring tool in the level 16 is used to adjust the measuring device to complete the bridge engineering photography work. If the measuring instrument is set up on the surface of the building platform, the measuring instrument must be kept level with the building platform before measurement can be carried out;

[0040] According to the above two measurement methods, the adjustment method of the measuring device is specified, so that the measuring device can take targeted measures according to different measurement methods, thereby improving the applicable scope of measurement and improving practicality; when adjusting the measuring device, the controller controls the No. 1 motor 15 on each leg 12 to work according to the value of the level 16, and the No. 1 motor 15 drives the rotating drum 14 to rotate forward or reverse. Since the rotating drum 14 and the support rod 13 are threadedly connected, the rotating drum 14 can drive the support rod 13 to extend the leg 12 or retract the leg 12 by rotating forward or reverse, and adjust the distance between the leg 12 and the ground, so as to achieve the purpose of automatically adjusting the measuring device, which is convenient for personnel to adjust the measuring device, thereby improving the convenience of use; and, during long-term video recording, if the ground where the measuring device is located is deformed or other factors cause the measuring device to be skewed, the measuring device can automatically achieve the role of automatic correction through the cooperation of the level 16, the controller and the No. 1 motor 15, thereby improving the video stability and video quality of long-term measurement work and avoiding the impact of the captured image;

[0041] After the adjustment of the measuring device is completed, the power supply 25 supplies power to the first electromagnet 23 and the second electromagnet 24. The first electromagnet 23 is energized to adsorb the extension rod 2 on the leg 12, so that the extension rod 2 is fixed on the leg 12. The second electromagnet 24 is energized to adsorb the telescopic rod 21 on the extension rod 2, so that the telescopic rod 21 is fixed on the extension rod 2. In the above manner, the extension rod 2 and the telescopic rod 21 are fixed on the leg 12, the support stability of the extension rod 2 on the leg 12 is increased, and the function of supporting the smaller tripod 11 with a larger support area is completed, thereby improving the long-term stability of the measuring device. The stability of the measurement is improved, thereby improving the wind resistance of the measuring device on the bridge; moreover, when the support rod 13 is extended or retracted, since the telescopic rod 21 is located in the extension rod 2 and slides freely, the telescopic rod 21 always keeps one end touching the ground during the process of the support leg 12 being lifted or lowered, and when the second electromagnet 24 is energized, one end of the telescopic rod 21 is in close contact with the ground; in addition, since most of the parts on the support leg 12 are located in the lower half, the weight of the bottom of the tripod 11 is higher than the camera module 1 on the top of the tripod 11, which lowers the center of gravity of the measuring device and improves the stability of the measuring device.

[0042] Embodiment 2:

[0043] On the basis of the first embodiment, grooves 26 are provided on both sides of the support leg 12, and a No. 1 chain 27 is slidably connected to the inner wall of the groove 26, and the bottom plate of the No. 1 chain 27 slides on the inner wall of the groove 26, one end of the No. 1 chain 27 is connected to the end of the groove 26 away from the ground through a spring, and the other end of the No. 1 chain 27 is connected to the telescopic rod 21; the No. 1 chain 27 is composed of a plurality of connecting blocks 28 hinged to each other, and the No. 1 chain 27 is set to swing unidirectionally toward the top; the bottom of the connecting block 28 is hinged with a gripping rod 29 through a torsion spring; the No. 1 chain 27 is set to swing unidirectionally toward the top The first chain 27 is in a state of being able to swing in only one direction; when the leg 12 is opened, the telescopic rod 21 is extended by the pull rope 22, and the telescopic rod 21 pulls the first chain 27 out of the groove 26. At this time, the spring between one end of the first chain 27 and the groove 26 is in a stretched state; when the leg 12 is closed, the extension rod 2 and the telescopic rod 21 are close to the leg 12, and the spring in the stretched state in the groove 26 pulls the first chain 27 to reset, completing the automatic retraction of the first chain 27.

[0044] The bottom of the gripping rod 29 is provided with a cylinder 3, and the cylinder 3 is arc-shaped, and spikes 31 are evenly arranged on the surface of the cylinder 3; the cylinder 3 is arc-shaped, so that the cylinder 3 can be curled and can be more easily stored in the connecting block 28;

[0045] A guide shaft 4 is provided in the groove 26, and the No. 1 chain 27 bypasses the guide shaft 4 and is connected to the telescopic rod 21; the guide shaft 4 is a hollow structure, and an outlet 41 is opened on the surface of the guide shaft 4, and the outlet 41 faces the telescopic rod 21; a reel 42 is rotatably connected to the guide shaft 4 through a torsion spring, and a No. 2 chain 43 is wound around the reel 42; the No. 2 chain 43 is composed of a plurality of blocks 44 hingedly connected, and one end of the No. 2 chain 43 is connected to one end of the No. 1 chain 27, and the first block 44 in the No. 2 chain 43 is stuck on the side of the first connecting block 28 in the No. 1 chain 27;

[0046] The support leg 12 is provided with a slide groove 45, and a slide rod 46 is slidably connected in the slide groove 45, one end of the slide rod 46 is connected to the support rod 13, and the other end is connected to the guide shaft 4; the connecting block 28 at one end of the No. 1 chain 27 is slidably connected to the surface of the telescopic rod 21;

[0047] A pressing block 47 is provided on the surface of the guide shaft 4, and the No. 1 chain 27 and the No. 2 chain 43 pass through the hollow part in the center of the pressing block 47, and the No. 2 chain 43 is squeezed by the pressing block 47 to engage with the No. 1 chain 27;

[0048] Specific working process: when the extension rod 2 drives the telescopic rod 21 to swing away from the groove 26, the telescopic rod 21 continuously pulls the No. 1 chain 27 out of the groove 26 until the telescopic rod 21 moves to the specified position. At this time, a part of the No. 1 chain 27 is located in the groove 26, and the other part is located between the groove 26 and the telescopic rod 21; the bottom of the connecting block 28 in the No. 1 chain 27 outside the groove 26 is no longer squeezed by the inner wall of the groove 26, so that the gripping rod 29 at the bottom of the connecting block 28 outside the groove 26 flips and swings until one end touches the ground, forming a supporting effect on the tripod 11, cooperating with the support rod 1 3 and the telescopic rod 21 support the tripod 11 on the ground, increase the ground contact range of the tripod 11, increase the support for the tripod 11, thereby improving the stability of the measuring device and improving the wind resistance of the measuring device; because the No. 1 chain 27 is set to swing toward the top in one direction, when the gripping rod 29 is cleaning or moving gravel, the No. 1 chain 27 can only bend downward but cannot bend upward, which plays a supporting role for the No. 1 chain 27 to clean the ground through the gripping rod 29, improves the gravel cleaning ability of the gripping rod 29, reduces the gravel in the support range of the measuring device, and improves the stability of the measuring device;

[0049] Moreover, after the gripping rod 29 is turned over, the telescopic rod 21 is still in the process of being gradually extended, so that when the gripping rod 29 contacts the ground, the gravel and dust on the ground are scraped away, reducing the amount of gravel in the contact range of the tripod 11, avoiding excessive gravel and affecting the support of the tripod 11, thereby improving the stability of the measuring device; moreover, if there are too many impurities such as gravel and dust on the ground, impurities will continue to be generated at the construction site, making it impossible to ensure that there is no dust in the support range of the tripod 11 when the tripod 11 contacts the ground with its surface, resulting in the tripod 11 being in contact with the ground with its surface. When in contact with the ground, it is easily affected by gravel and slides on the ground; therefore, after the gripping rod 29 turns over, the cylinder 3 turns over together with the gripping rod 29 until the cylinder 3 contacts the ground through the spikes 31, thereby improving the stability of the measuring device; moreover, the measuring device contacts the ground through the sharp end, and under the same force, the smaller the contact area, the greater the pressure, and the friction force between the two increases, so that the friction force between the measuring device and the ground increases, further improving the stability of the measuring device, thereby improving the wind resistance of the measuring device;

[0050] Before the No. 1 chain 27 is pulled out of the groove 26, the No. 1 chain 27 in the vertical state is flipped upward to the horizontal state through the guidance of the guide shaft 4; while the telescopic rod 21 pulls the No. 1 chain 27, the No. 2 chain 43 is also pulled out from the winding shaft 42 in the guide shaft 4 by the telescopic rod 21, and the No. 2 chain 43 is located at the top of the No. 1 chain 27 and moves and engages with the No. 1 chain 27, that is, a plug 44 is engaged between two adjacent connecting blocks 28, so that the No. 2 chain 43 and the No. 1 chain 27 form an inflexible rod after being engaged, thereby improving the support of the No. 1 chain 27 in cleaning gravel through the gripping rod 29, thereby improving the ability to clean gravel; when the extension rod 2 is reset, the telescopic rod 21 approaches the groove 26, and the No. 1 chain 27 is pulled and reset by the spring in the stretched state in the groove 26, and the No. 2 chain 43 is rewound by the rewinding shaft 42 under the influence of the torsion spring to complete the storage;

[0051] When adjusting the support rod 13, when the support rod 13 is extended away from the rotating drum 14, that is, the measuring device needs to be raised here, so that the distance between the No. 1 chain 27 and the ground is increased; and when the support rod 13 is extended, it drives the sliding rod 46 to slide in the sliding groove 45 close to the ground, and the sliding rod 46 drives the guide shaft 4 to slide in the groove 26 close to the ground, so that the guide shaft 4 drives the No. 1 chain 27 and the No. 2 chain 43 to slide on the surface of the telescopic rod 21 while close to the ground, keeping the spike 31 in contact with the ground, avoiding the situation that it is damaged by the wind during the adjustment process, thereby improving the wind resistance of the measuring device during the adjustment preparation; and the purpose of keeping the spike 31 in contact with the ground is to avoid the spike 31 from leaving the ground and then contacting it, which is easy to cause the situation that it does not contact the ground but actually contacts gravel, causing the bottom of the entire measuring device to shake due to the influence of gravel, so that the spike 31 and the end of the telescopic rod 21 can better contact the ground, improve the stability of the measuring device, and then improve the stability of the measuring device during the measurement process;

[0052] Before the No. 1 chain 27 and the No. 2 chain 43 extend out of the groove 26, the top of the No. 2 chain 43 contacts the pressure block 47, and the bottom of the No. 1 chain 27 contacts the pressure block 47; when the No. 1 chain 27 and the No. 2 chain 43 pass over the pressure block 47 together, they are squeezed by the pressure block 47 until the plug 44 is stuck between the adjacent connecting blocks 28, ensuring the engagement of the No. 1 chain 27 and the No. 2 chain 43, avoiding the situation where the No. 2 chain 43 is not engaged and shaking and the situation where the No. 1 chain 27 is insufficiently supported, thereby improving the support of the No. 1 chain 27, thereby improving the stability of the measuring device during the measuring process, and then improving the wind resistance of the measuring device.

[0053] Embodiment three:

[0054] On the basis of the second embodiment, one end of the second electromagnet 24 is located at the bottom of the telescopic rod 21, and a fixing hole 5 is opened at the bottom of the telescopic rod 21, and a conical fixing block 51 is slidably connected to the fixing hole 5 through a spring, and the sharp end of the fixing block 51 contacts the ground, and the other end is located above the bottom of the telescopic rod 21;

[0055] The interior of the fixing block 51 is a hollow structure, and barbs 52 are evenly arranged inside the fixing block 51, and the sharp ends of the barbs 52 are away from the sharp ends of the fixing block 51; the barbs 52 are symmetrically arranged with the central axis of the fixing block 51 as a reference, and a lever 53 is hinged at the center of the bottom of the fixing block 51, and the barbs 52 are fixedly connected to one side of the lever 53 and face outside the fixing block 51;

[0056] Specific working process: one end of the second electromagnet 24 is located at the bottom of the telescopic rod 21, so that when there is a metal building on the ground, the telescopic rod 21 can be adsorbed on the metal building through the second electromagnet 24, thereby increasing the stability of the telescopic rod 21; when the bottom of the telescopic rod 21 touches the ground and moves, the fixing block 51 passes through the fixing hole 5 and touches the ground; when the wind force is strong at the location, the personnel hold a hammer to hit one end of the fixing block 51, and hammer the sharp end of the fixing block 51 into the ground, thereby increasing the stability between the telescopic rod 21 and the ground, thereby avoiding the situation where the telescopic rod 21 is blown down and damaged due to the lack of time to recover the telescopic rod 21 in the event of a sudden strong wind during long-term shooting, thereby increasing the protective measures for the measuring device, improving the protection level, and improving the stability of the measuring device;

[0057] Furthermore, when the fixing block 51 is hammered into the ground, the barbs 52 are also hammered into the ground. After the barbs 52 enter the ground, they are exposed from the surface of the fixing block 51. The tips of the barbs 52 are inserted into the ground as they swing, playing the role of hooks. On the one hand, the soft ground at the location is avoided, the deployment range of the fixing block 51 in the ground is expanded, the possibility of the fixing block 51 moving out of the ground is reduced, and the stability is improved. On the other hand, after the barbs 52 are inserted into the ground, if the ground vibration causes the fixing block 51 to move out of the ground, the range of the barbs 52 inserted into the ground becomes larger and larger. , thereby preventing the fixing block 51 from being removed from the ground, further improving the stability; and, when it is necessary to recover the measuring device, a person holds the lever 53 with a vise and moves the lever 53 in a direction close to each other, so that the lever 53 drives the barb 52 to be pulled out of the ground and returned to the inside of the fixing block 51. There is no resistance from the barb 52 between the fixing block 51 and the ground, which makes it convenient for the person to pull out the fixing block 51, and then the measuring device can be recovered, which facilitates the placement and recovery of the measuring device, thereby improving the convenience of use and improving practicality.

[0058] Embodiment 4:

[0059] On the basis of the third embodiment, the tripod 11 is slidably connected to a vertical pole 54 at the center of the bottom, and a rotating wheel 55 is rotatably connected to the bottom of the vertical pole 54, and the axis of the rotating wheel 55 is connected to a No. 2 motor 56 provided on the vertical pole 54; a spring is provided between each of the legs 12 and the vertical pole 54, and each leg 12 is connected to the rotating wheel 55 through a No. 1 rope 57, and the No. 1 rope 57 is wound in the rotating wheel 55; the No. 2 motor 56 is a conventional driving electrical appliance with forward and reverse rotation;

[0060] The bottom of the support leg 12 is slidably connected to a scraper 58 via a spring, and the bottom of the scraper 58 contacts the ground;

[0061] Specific working process: when the measuring device needs to be placed, the second motor 56 reverses to drive the rotating wheel 55 to reverse, and the rotating wheel 55 reverses and gradually unwinds the first rope 57, and the spring between each leg 12 and the vertical pole 54 drives the legs 12 to swing away from the vertical pole 54 at the same time, so that the multiple legs 12 on the tripod 11 can be swung and unfolded at the same time, so that each leg 12 can move in a state of contacting the ground, so that the spikes 31 and the telescopic rod 21 can better maintain the state of moving in contact with the ground, avoid gravel between the measuring device and the ground, and be affected, thereby improving the stability of the measuring device; and, each leg 12 is opened and closed at the same time, which can keep the center of gravity of the measuring device in the middle position, avoid the measuring device from tipping over due to the shift of the center of gravity during the unfolding and placing process, and further improve the stability of the measuring device;

[0062] When the legs 12 are unfolded, the legs 12 drive the scraper 58 to unfold. Since the scraper 58 is connected to the bottom of the legs 12 through a spring sliding connection, the scraper 58 always keeps in contact with the ground. When the scraper 58 moves, it scrapes away the gravel on the ground, reducing the amount of gravel within the support range of the measuring device, avoiding affecting the support of the measuring device, and thus improving the stability of the measuring device.

Claims

1. A measuring device for continuous rigid frame bridge construction, comprising a camera module (1) and a tripod (11), wherein the camera module (1) is mounted on the top of the tripod (11), and the camera module (1) and the tripod (11) are placed as required to perform file creation and measurement; characterized in that: Also includes: The supporting leg (12) is hinged to the bottom of the tripod (11), and a supporting rod (13) is slidably connected in the supporting leg (12), and one end of the supporting rod (13) passes through one end of the supporting leg (12) and contacts the ground, and the other end is sleeved with a rotating cylinder (14); the rotating cylinder (14) is threadedly connected to the supporting rod (13), and the rotating cylinder (14) is rotatably connected to the lower half of the supporting leg (12), and the rotating cylinder (14) is arranged in the supporting leg (12). The tripod (11) is connected to a motor (15); a level (16) is installed on one side of the tripod (11), and a controller is provided inside the tripod (11) to control the motor (15); the motor (15) drives the legs (12) to extend through the rotating drum (14), so as to meet the adjustment of the tripod (11) according to the level (16); a damper is provided between the tripod (11) and the camera module (1), and the camera module (1) filters vibration through the damper; An extension rod (2) is hinged to one side of a leg (12) through a torsion spring, and an end of the extension rod (2) away from the ground is located at the lower half of the leg (12); a telescopic rod (21) is slidably connected to the inner side of the end of the extension rod (2) close to the ground, and a pull rope (22) is connected to the extension rod (2) where adjacent legs (12) are close to each other; a first electromagnet (23) and a second electromagnet (24) are respectively provided on the extension rod (2) and the telescopic rod (21), and the first electromagnet (23) and the second electromagnet (24) are both in the shape of long strips, the first electromagnet (23) is used for adsorbing the extension rod (2) and the leg (12), and the second electromagnet (24) is used for adsorbing the extension rod (2) and the telescopic rod (21); a power supply (25) is installed at the lower half of the leg (12), and the power supply (25) supplies power to the measuring device.

2. A measuring device for continuous rigid frame bridge construction according to claim 1, characterized in that: A groove (26) is provided on both sides of the supporting leg (12), and a No. 1 chain (27) is slidably connected to the inner wall of the groove (26), and the bottom plate of the No. 1 chain (27) slides on the inner wall of the groove (26), one end of the No. 1 chain (27) is connected to the end of the groove (26) away from the ground through a spring, and the other end of the No. 1 chain (27) is connected to the telescopic rod (21); the No. 1 chain (27) is composed of a plurality of connecting blocks (28) hinged to each other, and the No. 1 chain (27) is set to swing unidirectionally toward the top; the bottom of the connecting block (28) is hinged to a gripping rod (29) through a torsion spring.

3. A measuring device for continuous rigid frame bridge construction according to claim 2, characterized in that: A cylinder (3) is provided at the bottom of the gripping rod (29), and the cylinder (3) is arc-shaped, and spikes (31) are evenly provided on the surface of the cylinder (3).

4. A measuring device for continuous rigid frame bridge construction according to claim 2, characterized in that: A guide shaft (4) is provided in the groove (26), and the No. 1 chain (27) bypasses the guide shaft (4) and is connected to the telescopic rod (21); the guide shaft (4) is a hollow structure, and an outlet (41) is provided on the surface of the guide shaft (4), and the outlet (41) faces the telescopic rod (21); a winding shaft (42) is rotatably connected in the guide shaft (4) through a torsion spring, and a No. 2 chain (43) is wound around the winding shaft (42); the No. 2 chain (43) is composed of a plurality of blocks (44) hingedly connected, and one end of the No. 2 chain (43) is connected to one end of the No. 1 chain (27), and the first block (44) in the No. 2 chain (43) is stuck on one side of the first connecting block (28) in the No. 1 chain (27).

5. A continuous rigid frame bridge construction measuring device according to claim 4, characterized in that: A slide groove (45) is provided in the support leg (12), and a slide rod (46) is slidably connected in the slide groove (45), one end of the slide rod (46) is connected to the support rod (13), and the other end is connected to the guide shaft (4); the connecting block (28) at one end of the No. 1 chain (27) is slidably connected to the surface of the telescopic rod (21).

6. A measurement device for continuous rigid frame bridge construction according to claim 5, characterized in that: A pressing block (47) is provided on the surface of the guide shaft (4), and the first chain (27) and the second chain (43) pass through the hollow part in the center of the pressing block (47), and the second chain (43) is squeezed by the pressing block (47) to engage with the first chain (27).

7. A measurement device for continuous rigid frame bridge construction according to claim 4, characterized in that: One end of the second electromagnet (24) is located at the bottom of the telescopic rod (21), and a fixing hole (5) is provided at the bottom of the telescopic rod (21). A conical fixing block (51) is slidably connected in the fixing hole (5) via a spring. The sharp end of the fixing block (51) contacts the ground, and the other end is located above the bottom of the telescopic rod (21).

8. A measurement device for continuous rigid frame bridge construction according to claim 7, characterized in that: The interior of the fixing block (51) is a hollow structure, and barbs (52) are evenly arranged in the fixing block (51), and the sharp ends of the barbs (52) are away from the sharp end of the fixing block (51); the barbs (52) are symmetrically arranged with the central axis of the fixing block (51) as a reference, and a lever (53) is hinged at the center position of the bottom of the fixing block (51), and the barbs (52) are fixedly connected to one side of the lever (53) and face outside the fixing block (51).

9. A continuous rigid frame bridge construction measuring device according to claim 1, characterized in that: The tripod (11) is slidably connected to a vertical pole (54) at the center of the bottom, and a rotating wheel (55) is rotatably connected to the bottom of the vertical pole (54), and the axis of the rotating wheel (55) is connected to a No. 2 motor (56) arranged on the vertical pole (54); a spring is arranged between each of the supporting legs (12) and the vertical pole (54), and each supporting leg (12) is connected to the rotating wheel (55) through a No. 1 rope (57), and the No. 1 rope (57) is rolled up in the rotating wheel (55).

10. A measurement device for continuous rigid frame bridge construction according to claim 9, characterized in that: The bottom of the supporting leg (12) is slidably connected to a scraper (58) via a spring, and the bottom of the scraper (58) contacts the ground.

Images