A deflection measuring device for dismantling a truss-type composite arch bridge

Abstract

The invention discloses a deflection measuring device for dismantling a trussed composite arch bridge, which relates to the technical field of bridge monitoring and comprises a positioning calibration component and a positioning receiving component. Both the positioning calibration component and the positioning receiving component comprise three groups of hard bearing parts, and soft connecting films are integrally formed on the three groups of hard bearing parts, and a plurality of negative pressure suction cups are installed on the soft connecting films. An air pump is fixedly connected inside the hard bearing part located in the middle, and the negative pressure suction cups on the plurality of groups of hard bearing parts are used to adsorb and position the bridge during the overall movement. The bridge is not easy to fall as a whole, and the adsorption position point can be adjusted by the expansion degree of an elastic extension sac even in the case of local unevenness. In addition, the laser component can be driven to emit and receive lasers by a retractable lower expansion extension sac during continuous movement. The overall measurement of the bridge in the process of dismantling is more accurate, and the measurement process is more stable.

Description

Technical Field

[0001] The invention relates to the technical field of bridge monitoring, and in particular to a deflection measuring device for dismantling a truss-type composite arch bridge. Background Art

[0002] As a unique bridge structure, truss composite arch bridges have the advantages of strong spanning capacity, reasonable force, lightness and beauty, and have been widely used in bridge construction. However, with the increase of bridge service life and traffic load, truss composite arch bridges may experience deflection, which poses a potential threat to their structural safety and performance. Therefore, it is of great significance to measure the deflection of truss composite arch bridges and timely discover and evaluate their deformation to ensure the safe operation of bridges.

[0003] Most of the existing bridge deflection measurements use mechanical displacement meter methods, precision level methods, total station methods and connecting pipe methods, but these measurement methods all need to ensure the integrity of the bridge during the measurement process. However, during the bridge demolition process, the shape of the bridge is constantly changing. The above measurement methods all require specified measurement conditions and cannot perform gradually changing measurements as the bridge changes. The patent name is a deflection measurement device for bridge engineering, and the publication number is: CN115682978B. The patent proposes that the existing measurement methods all require manual measurement, which is time-consuming and labor-intensive, and is extremely inconvenient for multi-site measurement. Multi-site testing through flying devices such as drones cannot be well contacted with the bridge measurement points, and the measurement results are poor. The structural design of the four-set connecting rod transmission assembly and the suction cup assembly By manually moving the first crawling device and the second crawling device to the bottom of the bridge body to measure the deflection of the bridge body, on the one hand, the labor cost is reduced and the inconvenience of manually measuring the deflection of the bridge body is avoided; on the other hand, by adjusting the relative positions of the first crawling device and the second crawling device and combining the laser measuring device, measurements can be performed at different measuring points on the lower surface of the bridge body, thereby improving work efficiency and ensuring measurement accuracy. However, during the bridge demolition process, the four sets of connecting rod transmission assemblies used therein cannot fit well on the bridge surface. Once a suction cup assembly cannot fit and absorb in time due to the protrusions or depressions on the bridge surface, the entire assembly cannot be moved. In view of the above technical problems, the present application proposes a deflection measuring device for the demolition of a trussed composite arch bridge. Summary of the invention

[0004] The object of the present invention is to provide a deflection measuring device for dismantling a trussed composite arch bridge to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a deflection measuring device for dismantling a trussed composite arch bridge, comprising a positioning calibration component and a positioning receiving component, wherein the positioning calibration component and the positioning receiving component each comprise three groups of hard bearing parts, each of the three groups of hard bearing parts are integrally formed with a soft connecting membrane, a plurality of negative pressure suction cups are mounted on the soft connecting membrane, each group of the hard bearing parts is divided into two, and the three groups of the hard bearing parts are connected by an elastic extension capsule, an air pump is fixedly connected inside the hard bearing part at the middle position, an air inlet of the air pump is connected to a first negative pressure adsorption box, an air inlet of the negative pressure suction cup at the middle position is connected to the first negative pressure adsorption box through a hose, an air outlet of the air pump is connected to a first electrically controlled multi-way diverter valve, Two of the air outlets of the first electrically controlled multi-way diverter valve are connected to air outlet delivery pipes, and one end of the air outlet delivery pipe away from the first electrically controlled multi-way diverter valve passes through the outer wall of the hard bearing part and is connected to the elastic extension capsule. The outside of the first negative pressure adsorption box is connected to two negative pressure adsorption tubes, and one end of the two negative pressure adsorption tubes away from the first negative pressure adsorption box passes through the hard bearing part and the outer wall of the elastic extension capsule and is connected to the second negative pressure adsorption box. The two second negative pressure adsorption boxes are respectively located inside the hard bearing parts on both sides and are respectively connected to the negative pressure suction cups located on both sides. The outside of the elastic extension capsule is connected to a pressure relief valve, and a laser measurement component is fixedly connected to one side adjacent to the two hard bearing parts located in the middle position.

[0006] Preferably, the laser measurement component includes a connecting plate, which is fixedly connected to one side adjacent to two hard bearing parts located at the middle position, and two lower expansion extension bags are installed at the bottom of the connecting plate, and one side adjacent to the two lower expansion extension bags is rotatably connected to a connecting seat, and the end of the connecting seat away from the lower expansion extension bag is fixedly connected to a connecting ring, and the interior of the connecting ring is rotatably connected to a spirit level through a rotating shaft, a laser assembly is fixedly connected to the spirit level, and a counterweight is fixedly connected to the bottom of the spirit level, the laser assembly on the positioning and calibration assembly is a laser transmitter, and the laser assembly on the positioning receiving assembly is a laser receiver.

[0007] Preferably, the laser measurement assembly also includes two expansion air inlet pipes, which are respectively connected to the two lower expansion extension bags, and one end of the expansion air inlet pipe away from the lower expansion extension bag passes through the outer wall of the hard bearing part and is connected to one of the air outlets of the first electrically controlled multi-way diverter valve.

[0008] Preferably, the air outlet of the air outlet delivery pipe is connected to a second electrically controlled multi-way diverter valve, one of the air outlets of the second electrically controlled multi-way diverter valve is connected to an elastic extension capsule, the other two air outlets of the second electrically controlled multi-way diverter valve are connected to a diverter pipe, and one end of the diverter pipe away from the second electrically controlled multi-way diverter valve is connected to an inclined push capsule, the inclined push capsule is in the shape of a right triangle, and the bottom edge of the right triangle inclined push capsule is fixedly connected to the elastic extension capsule.

[0009] Preferably, the hard bearing portion and the interior of the elastic extension sac are fixedly connected with a plurality of supporting sacs, the supporting sacs penetrate the outer wall of the inclined pushing sac, the interior of the supporting sacs is filled with electrorheological fluid, the outside of the supporting sacs is connected with a plurality of power-carrying wires, and the conductive ends of the power-carrying wires are electrically connected to the electrorheological fluid.

[0010] Preferably, a plurality of partition plates are integrally formed inside the support sac, a through hole is opened on the outside of the partition plate, filling cotton is fixedly connected to the inside of the through hole, the current-carrying wire is wound around the outside of the filling cotton, and the plurality of partition plates are used to divide the interior of the support sac into a plurality of separate storage cavities, the electrorheological fluid is respectively stored in the plurality of separate storage cavities, and the filling cotton located inside the through hole is used to immerse the electrorheological fluid and connect the plurality of storage cavities.

[0011] Preferably, the outsides of the two groups of hard bearing parts located at the two end positions are fixedly connected with connecting ropes.

[0012] Preferably, adjacent sides of the two groups of hard bearing parts located at both ends are fixedly connected with connecting rods.

[0013] Preferably, one of the multiple negative pressure suction cups is a Bernoulli suction cup, the air inlet of the Bernoulli suction cup is connected to a solenoid valve, the air inlet of the solenoid valve is connected to a centralized air inlet pipe, and the end of the centralized air inlet pipe away from the solenoid valve is connected to the air outlet of the first electrically controlled multi-way diverter valve.

[0014] Preferably, air pressure sensors are installed inside the lower expansion and extension bag and the elastic extension bag body.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Compared with the prior art, in this embodiment, the expansion of multiple elastic extension capsules is used as a whole to drive multiple hard bearing parts to move on the bridge. Because the elastic extension capsules are filled with gas, the overall weight is lighter and more convenient to carry. In the process of overall movement, multiple groups of negative pressure suction cups on the hard bearing parts are used to adsorb and position the bridge. The whole is not easy to fall. Even in the case of local unevenness, the adsorption position point can be adjusted by the expansion degree of the elastic extension capsule to ensure stability during continuous movement. In the process of continuous movement, the retractable lower expansion extension capsule can also be used to drive the laser assembly to emit and receive lasers. The overall measurement of the bridge in the process of demolition is more accurate and the measurement process is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the three-dimensional structural schematic diagrams of an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of a laser measurement assembly in an embodiment of the present invention;

[0019] Figure 3 This is a second schematic diagram of a three-dimensional structure in an embodiment of the present invention;

[0020] Figure 4 The third schematic diagram of the three-dimensional structure in the embodiment of the present invention;

[0021] Figure 5 It is a schematic structural diagram of a second electrically controlled multi-way diverter valve and an inclined push capsule in an embodiment of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of two inclined push capsules in an embodiment of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the supporting capsule and the tilting pushing capsule in an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the partition plate and the filling cotton in an embodiment of the present invention;

[0025] Fig. 9 For the embodiment of the present invention Figure 3 A schematic diagram of the enlarged structure of area A;

[0026] Fig.10 It is a schematic diagram of the structure between the positioning calibration component, the positioning receiving component and the bridge in an embodiment of the present invention.

[0027] In the figure: 100, hard bearing part; 101, soft connecting film; 102, elastic extension capsule; 103, negative pressure suction cup; 104, air pump; 105, first negative pressure adsorption box; 106, first electric multi-way diverter valve; 107, air outlet delivery pipe; 108, negative pressure adsorption pipe; 109, second negative pressure adsorption box; 110, connecting plate; 111, lower expansion extension capsule; 112, expansion air inlet pipe; 113, connecting seat; 114, Connecting ring; 115, level; 116, laser assembly; 117, counterweight; 118, pressure relief valve; 200, second electrically controlled multi-way diverter valve; 201, tilting push sac; 300, supporting sac; 301, electrorheological fluid; 302, energized wire; 400, partition; 401, filling cotton; 500, connecting rope; 600, connecting rod; 700, solenoid valve; 701, centralized air intake pipe; 800, air pressure sensor. 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: Figure 1As shown, the present application discloses a deflection measuring device for dismantling a trussed composite arch bridge, comprising a positioning calibration component and a positioning receiving component, wherein the positioning calibration component and the positioning receiving component each comprise three groups of hard bearing parts 100, each of the three groups of hard bearing parts 100 are integrally formed with a soft connecting membrane 101, a plurality of negative pressure suction cups 103 are mounted on the soft connecting membrane 101, each group of hard bearing parts 100 is divided into two, and the three groups of hard bearing parts 100 are connected to each other through an elastic extension capsule 102, an air pump 104 is fixedly connected to the inside of the hard bearing part 100 located in the middle position, an air inlet of the air pump 104 is connected to a first negative pressure adsorption box 105, an air inlet of the negative pressure suction cup 103 located in the middle position is connected to the first negative pressure adsorption box 105 through a hose, an air outlet of the air pump 104 is connected to a first electrically controlled multi-way diverter valve 106, and the first electrically controlled multi-way Two of the air outlets of the diverter valve 106 are connected to an air outlet delivery pipe 107. The end of the air outlet delivery pipe 107 away from the first electrically controlled multi-way diverter valve 106 passes through the outer wall of the hard bearing part 100 and is connected to the elastic extension capsule 102. The outside of the first negative pressure adsorption box 105 is connected to two negative pressure adsorption tubes 108. The ends of the two negative pressure adsorption tubes 108 away from the first negative pressure adsorption box 105 pass through the outer walls of the hard bearing part 100 and the elastic extension capsule 102 and are connected to a second negative pressure adsorption box 109. The two second negative pressure adsorption boxes 109 are respectively located inside the hard bearing parts 100 on both sides and are respectively connected to the negative pressure suction cups 103 located on both sides. The outside of the elastic extension capsule 102 is connected to a pressure relief valve 118. A laser measurement component is fixedly connected to one side adjacent to the two hard bearing parts 100 located in the middle position.

[0030] Specifically, during use, when the trussed composite arch bridge is being dismantled, the bridge as a whole is constantly changing. When it is necessary to measure the constantly changing bridge, the positioning calibration component and the positioning receiving component are respectively installed on the bridge whose deflection needs to be measured. During the placement process, the positioning calibration component and the positioning receiving component are placed in parallel. During the placement process, multiple groups of hard bearing parts 100 and elastic extension capsules 102 are adsorbed onto the bridge through negative pressure suction cups 103. When the multiple groups of hard bearing parts 100 and elastic extension capsules 102 are adsorbed onto the bridge as a whole, the air pump 104 is started. When the air pump 104 is started, the air inside the first negative pressure adsorption box 105 can be sucked out. When the first negative pressure adsorption box 105 is placed After the air inside the first negative pressure adsorption box 105 is sucked out, the negative pressure adsorption tube 108 connected to the first negative pressure adsorption box 105 will suck out the gas inside the second negative pressure adsorption box 109. When the gas inside the first negative pressure adsorption box 105 and the air outlet delivery pipe 107 is pumped out, the suction force of the air pump 104 continues to exist inside the first negative pressure adsorption box 105 and the air outlet delivery pipe 107, thereby sucking out the air between the negative pressure suction cup 103 and the bridge contact surface through the hose. After the air between the bridge contact surface is sucked out, a negative pressure space is formed between the bridge contact surface and the negative pressure suction cup 103. After the negative pressure space is formed, the multiple groups of hard bearing parts 100 and the elastic extension capsule 102 can be firmly adsorbed on or under the bridge deck through the negative pressure suction cup 103.

[0031] Furthermore, when the hard bearing part 100 of the positioning calibration component and the positioning receiving component is adsorbed on the bridge deck or under the bridge through the negative pressure suction cup 103, the deflection of the bridge is measured by laser through the laser measurement component. When measuring, because the bridge is being measured during the demolition process, the bridge is not complete and it takes time to adjust the measurement position. During the position adjustment process, the air pump 104 can continuously inject gas into the interior of the first electrically controlled multi-way diverter valve 106. During the continuous gas injection process, the air flow can be diverted to other positions through the first electrically controlled multi-way diverter valve 106. When the position is moved, the gas can be pre-delivered to the interior of the elastic extension sac 102 located in the front or rear through one of the air outlet delivery pipes 107. When gas enters the elastic extension sac 102, the elastic extension sac 102 will expand, and when gas is injected into the elastic extension sac 102, the hard bearing part 100 located at the middle position and the hard bearing part 100 located at the rear position are negatively pressure adsorbed and positioned using the negative pressure suction cup 103. After the negative pressure adsorption positioning is completed, gas is continuously injected into the elastic extension sac 102 located in front of the hard bearing part 100 at the middle position, so that the elastic extension sac 102 continues to expand. After the elastic extension sac 102 continues to expand, it will extend, and during the extension process, it will drive the hard bearing part 100 located in the front to move. When the expanded elastic extension sac 102 drives the hard bearing part 100 located in the front When the rigid bearing part 100 moves to the designated position, the negative pressure suction cup 103 on the front rigid bearing part 100 is started again, so that the negative pressure suction cup 103 at the front position performs negative pressure adsorption positioning on the rigid bearing part 100 at the front position. After the negative pressure positioning and adsorption of the rigid bearing part 100 at the front position is completed, the gas inside the expanded elastic extension sac 102 is discharged through the pressure relief valve 118. When the gas inside the expanded elastic extension sac 102 is discharged, the negative pressure adsorption positioning state of the rigid bearing part 100 at the middle position is pre-released, so that no negative pressure adsorption is generated between the rigid bearing part 100 at the middle position and the bridge. When the negative pressure adsorption state is no longer generated and the elastic extension sac 102 at the front position is closed, the rigid bearing part 100 at the middle position is closed. After the gas inside the body 102 is gradually discharged, the expanded elastic extension capsule 102 will be condensed, thereby pulling the hard bearing part 100 located in the middle position to the position of the hard bearing part 100 located in the front, and before the elastic extension capsule 102 located in the front is completely condensed, the elastic extension capsule 102 at the rear is inflated, thereby pushing the hard bearing part 100 located in the middle position to move and assisting the condensation of the front elastic extension capsule 102. When the front elastic extension capsule 102 is completely condensed and the hard bearing part 100 located in the middle position is also moved to the position of the hard bearing part 100 located in the front, the negative pressure suction cup 103 on the hard bearing part 100 located in the middle position is activated.Thus, the hard bearing part 100 at the middle position is positioned by negative pressure adsorption. After the hard bearing part 100 at the middle position is positioned by negative pressure adsorption, the pressure relief valve 118 located inside the rear elastic extension capsule 102 is opened, so that the gas inside the elastic extension capsule 102 at the rear position is discharged, and when the gas inside the rear elastic extension capsule 102 is discharged, the negative pressure state of the negative pressure suction cup 103 on the rear hard bearing part 100 is released, so that the hard bearing part 100 at the rear position is pulled to move forward, thereby completing the overall movement.

[0032] like Figure 2 As shown, the laser measurement assembly includes a connecting plate 110, which is fixedly connected to one side adjacent to two hard bearing parts 100 located at the middle position, and two lower expansion extension bags 111 are installed at the bottom of the connecting plate 110, and one side adjacent to the two lower expansion extension bags 111 is rotatably connected to a connecting seat 113, and one end of the connecting seat 113 away from the lower expansion extension bag 111 is fixedly connected to a connecting ring 114, and the interior of the connecting ring 114 is rotatably connected to a level meter 115 through a rotating shaft, and a laser assembly 116 is fixedly connected to the level meter 115, and a counterweight block 117 is fixedly connected below the level meter 115, the laser assembly 116 on the positioning and calibration assembly is a laser transmitter, and the laser assembly 116 on the positioning receiving assembly is a laser receiver.

[0033] Specifically, during use, when the positioning and calibration components and the positioning and receiving components are moved to the specified positions, the laser component 116 on the positioning and calibration components and the laser component 116 on the positioning and receiving components are started, and one of them emits a laser for measurement and the other receives a laser for measurement, so as to measure the deflection of the entire bridge, and the expansion and contraction of the elastic extension capsule 102 are controlled to realize the mobile measurement of the positioning and calibration components and the positioning and receiving components on the bridge. During the mobile measurement process, the mutual rotation between the connecting seat 113 and the level 115 and the weight of the counterweight block 117 can ensure that the laser component 116 is always perpendicular to the ground for measurement and calibration, and the overall measurement is more accurate.

[0034] like Figure 2 As shown, the laser measurement assembly also includes two expansion air inlet pipes 112, which are respectively connected to the two lower expansion extension bags 111. One end of the expansion air inlet pipe 112 away from the lower expansion extension bag 111 passes through the outer wall of the hard bearing part 100 and is connected to one of the air outlets of the first electrically controlled multi-way diverter valve 106.

[0035] Furthermore, the soft connection film 101 on the upper half of the hard bearing part 100 is made of a soft material, and can be deformed when the negative pressure suction cup 103 adsorbs the bridge deck, so that the negative pressure suction cup 103 can better fit the bridge deck.

[0036] Specifically, because the arch bridge has a certain curvature, when the positioning and calibration components and the positioning and receiving components move to the curved position, a height difference will appear between the positioning and calibration components and the positioning and receiving components. When the height difference appears, the two laser components 116 cannot complete the laser emission and reception work. Therefore, at this time, the gas passage to the inside of the expansion inlet pipe 112 is opened through the first electrically controlled multi-way diverter valve 106, and the gas can be continuously injected into the interior of the downward expansion and extension capsule 111. In the process of continuously injecting gas into the interior of the downward expansion and extension capsule 111, the lower expansion and extension capsule 111 can be expanded and extended. When the lower expansion and extension capsule 111 is expanded and extended, the connecting seat 113 and the laser component 116 can be driven to move downward, so that the laser components 116 on the positioning and calibration components and the positioning and receiving components can be in the same vertical and parallel state, completing the laser positioning and receiving work.

[0037] Furthermore, air pressure sensors 800 are installed inside the lower expansion extension bag 111 and the elastic extension bag body 102. The air pressure sensor 800 can be set to measure the amount of gas entering the lower expansion extension bag 111. In conjunction with the electronic data fed back by the level meter 115, it can be calculated whether the two lower expansion extension bags 111 are in a parallel state. The air pressure sensor 800 can detect and control the amount of gas entering the two lower expansion extension bags 111, thereby ensuring that the two lower expansion extension bags 111 drive the connecting seat 113 to be in a parallel state when in the expanded state.

[0038] like Figure 1 As shown, the two groups of hard bearing parts 100 at the two end positions are fixedly connected to the outside with connecting ropes 500, and the two groups of hard bearing parts 100 at the two end positions are fixedly connected to the adjacent sides with connecting rods 600.

[0039] Specifically, by setting the connecting rope 500, the staff can pull the positioning calibration component and the positioning receiving component through the connecting rope 500 above the bridge to prevent the positioning calibration component and the positioning receiving component from falling, and by setting the connecting rod 600, the front and rear groups of hard bearing parts 100 can be connected so that the two hard bearing parts 100 between each group are in the same parallel state.

[0040] like Figure 1-Figure 9 As shown, one of the multiple negative pressure suction cups 103 is a Bernoulli suction cup, the air inlet of the Bernoulli suction cup is connected to the solenoid valve 700, the air inlet of the solenoid valve 700 is connected to the centralized air inlet pipe 701, and the end of the centralized air inlet pipe 701 away from the solenoid valve 700 is connected to the air outlet of the first electrically controlled multi-way diverter valve 106.

[0041] Specifically, when the first electrically controlled multi-way diverter valve 106 is diverting gas, it can also deliver gas to the solenoid valve 700 through the centralized air inlet pipe 701, and deliver gas to one of the negative pressure suction cups 103, which is a Bernoulli suction cup, through the solenoid valve 700. When the airflow enters the interior through the air inlet of the Bernoulli suction cup, the airflow will accelerate during the flow process due to the shape design of the interior of the Bernoulli suction cup and the setting of the air outlet. According to Bernoulli's law, an increase in flow rate will cause the internal pressure of the Bernoulli suction cup to decrease. Since the internal pressure of the Bernoulli suction cup decreases, while the external atmospheric pressure remains unchanged, under the action of the Bernoulli suction cup, the external atmospheric pressure will press the object onto the Bernoulli suction cup. This pressure difference forms an adsorption force, which enables the Bernoulli suction cup to firmly adsorb the object.

[0042] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the prior art, in the present embodiment, the expansion between multiple elastic extension capsules 102 is used as a whole to drive multiple hard bearing parts 100 to move on the bridge. Because the elastic extension capsules 102 are filled with gas, the overall weight is lighter and more convenient to carry. In the process of overall movement, multiple groups of negative pressure suction cups 103 on the hard bearing parts 100 are used to adsorb and position the bridge, and the whole is not easy to fall. Even in the case of local unevenness, the adsorption position point can be adjusted by the expansion degree of the elastic extension capsule 102 to ensure stability during continuous movement. In the process of continuous movement, the retractable lower expansion extension capsule 111 can also drive the laser assembly 116 to emit and receive lasers. The overall measurement is more accurate when facing a bridge in the process of demolition, and the measurement process is more stable.

[0043] Embodiment 2: Considering that during use, the bridge may be broken or bulged during the demolition process. When these phenomena occur, it is necessary to turn the positioning calibration component and the positioning receiving component to other directions to continue the measurement. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0044] like Figure 5-Figure 6 As shown, the air outlet of the air outlet delivery pipe 107 is connected to the second electrically controlled multi-way diverter valve 200, one of the air outlets of the second electrically controlled multi-way diverter valve 200 is connected to the elastic extension capsule 102, and the other two air outlets of the second electrically controlled multi-way diverter valve 200 are connected to the diverter pipe, and the end of the diverter pipe away from the second electrically controlled multi-way diverter valve 200 is connected to the inclined pushing capsule 201, and the inclined pushing capsule 201 is a right triangle, and the bottom edge of the right triangle inclined pushing capsule 201 is fixedly connected to the elastic extension capsule 102.

[0045] Specifically, during use, when the entire device needs to be turned, the second electrically controlled multi-way diverter valve 200 can be opened and the gas can be transported to the tilting push capsule 201 on the left and right sides through the diverter pipe, so that the tilting push capsule 201 expands, and the expansion of the tilting push capsule 201 pushes the elastic extension capsule 102 to tilt left and right, and when the elastic extension capsule 102 tilts left and right, it cooperates with the negative pressure suction cup 103 on the hard bearing part 100 to complete the adsorption turning.

[0046] Furthermore, when displacement to the left side is required, it is only necessary to inject gas into the inclined pushing sac 201 on the left side, so that the inclined pushing sac 201 on the left side expands. When the inclined pushing sac 201 on the left side expands, it can push the elastic extension sac 102 to tilt to the left side, and the same is true to the right side. When the inclined pushing sac 201 expands, the hard bearing part 100 located in the middle position will be used as a support point, thereby pushing the elastic extension sac 102 to displace to the left and right sides.

[0047] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to embodiment one, in the present embodiment, the gas transported inside the gas outlet delivery pipe 107 is respectively diverted to the inclined propulsion sacs 201 on the left and right sides through the second electrically controlled multi-way diverter valve 200, and when it is necessary to turn to the left, gas is injected into the inclined propulsion sac 201 on the left side, and when it is necessary to turn to the right, gas only needs to be injected into the inclined propulsion sac 201 on the right side. When the inclined propulsion sac 201 is inflated, it will use the hard bearing part 100 in the middle position as a support point to push the elastic extension sac 102 and the hard bearing part 100 located in front of the elastic extension sac 102 to turn.

[0048] Embodiment 3: Considering that during the movement, once the negative pressure suction cup 103 on the hard bearing part 100 at the middle position is not adsorbed to the bridge deck in time, the hard bearing part 100 at the middle position is installed with components such as the air pump 104, so that the overall weight of the hard bearing part 100 at the middle position is heavier. When one of the hard bearing parts 100 at the front or rear and the negative pressure suction cup 103 on the hard bearing part 100 at the middle position lose adsorption force at the same time, the hard bearing part 100 that loses adsorption force as a whole will fall. When the fallen hard bearing part 100 falls downward as a whole due to the connection of the elastic extension capsule 102, once the local hard bearing part 100 falls downward, it will be unable to return to the position in contact with the bridge deck, and cannot be moved by adsorption. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0049] like Figure 7-Figure 8As shown, the interior of the hard bearing part 100 and the elastic extension capsule 102 are fixedly connected with a plurality of support capsules 300, the support capsules 300 penetrate the outer wall of the inclined pushing capsule 201, the interior of the support capsule 300 is filled with electrorheological fluid 301, and the outside of the support capsule 300 is connected with a plurality of power-carrying wires 302, and the conductive ends of the power-carrying wires 302 are electrically connected to the electrorheological fluid 301.

[0050] Specifically, during use, in order to prevent the local hard bearing part 100 from sagging, during the movement, when the negative pressure suction cup 103 at the middle position actively cancels the adsorption, the electrorheological fluid 301 is energized through multiple power-carrying wires 302. When the electrorheological fluid 301 is energized, it will harden. The hardened electrorheological fluid 301 can drive the supporting capsule 300 to support the elastic extension capsule 102 and the hard bearing part 100, so that the local negative pressure suction cup 103 can still support the hard bearing part 100 and the elastic extension capsule 102 through the hardened electrorheological fluid 301 and the supporting capsule 300 when power is lost, ensuring that the local elastic extension capsule 102 and the negative pressure suction cup 103 do not fall during the movement and are excessively separated from the bridge deck.

[0051] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: considering that during use, when the elastic extension capsule 102 expands and extends and drives the hard bearing part 100 to move, the electrorheological fluid 301 is energized through the current-carrying wire 302, so that the electrorheological fluid 301 can support the hard bearing part 100 and the elastic extension capsule 102 after hardening, so that the whole will not sag during the movement, and the phenomenon that the hard bearing part 100 sags and cannot be restored to the original position due to untimely adsorption during the movement is avoided.

[0052] Embodiment 4: Considering that the elastically extending capsule 102 and the tilted pushing capsule 201 may squeeze the supporting capsule 300 and the electrorheological fluid 301 during the expansion and contraction process, the supporting capsule 300 will be deformed when squeezed. When the supporting capsule 300 is deformed, the electrorheological fluid 301 in the flowing state inside the supporting capsule 300 will also be squeezed to flow. When the supporting capsule 300 is bent left and right, the electrorheological fluid 301 inside the supporting capsule 300 will be squeezed to one position, resulting in excessive unevenness. When excessive unevenness occurs, the overall support will be poor and a good support effect cannot be achieved. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically:

[0053] like Figure 8As shown, a plurality of partition plates 400 are integrally formed inside the support capsule 300, a through hole is opened on the outside of the partition plate 400, a filling cotton 401 is fixedly connected inside the through hole, and a current-carrying conductor 302 is wound around the outside of the filling cotton 401. The plurality of partition plates 400 are used to divide the interior of the support capsule 300 into a plurality of separate storage cavities, and the electrorheological fluid 301 is stored in the plurality of separate storage cavities respectively, and the filling cotton 401 located inside the through hole is used to immerse the electrorheological fluid 301 and connect the plurality of storage cavities.

[0054] Specifically, during use, when the elastic extension sac 102 and the tilted push sac 201 are expanding and extending, in order to prevent the electrorheological fluid 301 located inside the support sac 300 from being excessively squeezed due to the movement of the elastic extension sac 102 and the tilted push sac 201 and flowing to the same position, the storage space inside the support sac 300 is divided into a plurality of separate storage spaces by a plurality of partition plates 400, so that the electrorheological fluid 301 is placed in sections. The segmented placement can prevent the electrorheological fluid 301 from being squeezed and flowing to the same position when flowing. Position, and in order to ensure that the electrorheological fluid 301 inside the multiple storage spaces can be smoothly connected to form an overall hardening when powered on, the electrorheological fluid 301 inside the multiple storage spaces is connected by filling cotton 401. When powered on, the filling cotton 401 filled with electrorheological fluid 301 can conduct current, thereby achieving the hardening of the electrorheological fluid 301 inside the multiple storage spaces, and when the elastically extended sac 102 and the tilted pushed sac 201 are deformed and extended, the filling cotton 401 can reduce the excessive flow of the electrorheological fluid 301 while forming the connection of the electrorheological fluid 301.

[0055] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the third embodiment, in the present embodiment, the space inside the supporting capsule 300 is divided into multiple spaces, so that the electrorheological fluid 301 can be stored separately, and the electrorheological fluid 301 in the multiple separate spaces is connected by the filling cotton 401. In the process of using the filling cotton 401 for connection, the electrorheological fluid 301 can be hardened to support the elastic extension capsule 102 and the hard bearing part 100, and the flowing electrorheological fluid 301 will not be excessively squeezed to the specified position during the deformation of the elastic extension capsule 102 and the inclined push capsule 201, thereby avoiding excessive unevenness of the electrorheological fluid 301.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A deflection measuring device for dismantling a trussed composite arch bridge, comprising a positioning calibration component and a positioning receiving component, wherein the positioning calibration component and the positioning receiving component both comprise three sets of hard bearing parts (100), characterized in that: The three groups of hard bearing parts (100) are all integrally formed with a soft connection film (101), and a plurality of negative pressure suction cups (103) are installed on the soft connection film (101). Each group of hard bearing parts (100) is divided into two, and the three groups of hard bearing parts (100) are connected to each other through an elastic extension capsule (102). The multiple groups of hard bearing parts (100) and the elastic extension capsule (102) are adsorbed onto the bridge through the negative pressure suction cups (103), and are located An air pump (104) is fixedly connected to the interior of the hard bearing portion (100) at the middle position, and an air inlet of the air pump (104) is connected to a first negative pressure adsorption box (105). An air inlet of the negative pressure suction cup (103) at the middle position is connected to the first negative pressure adsorption box (105) via a hose, and an air outlet of the air pump (104) is connected to a first electrically controlled multi-way diverter valve (106), and two of the air outlets of the first electrically controlled multi-way diverter valve (106) are connected to There is an air outlet conveying pipe (107), one end of the air outlet conveying pipe (107) away from the first electrically controlled multi-way diverter valve (106) passes through the outer wall of the hard bearing part (100) and is connected to the elastic extension capsule (102); the outside of the first negative pressure adsorption box (105) is connected to two negative pressure adsorption pipes (108); one end of the two negative pressure adsorption pipes (108) away from the first negative pressure adsorption box (105) passes through the outer walls of the hard bearing part (100) and the elastic extension capsule (102) and is connected to a second negative pressure adsorption box (109); the two second negative pressure adsorption boxes (109) are respectively located inside the hard bearing parts (100) on both sides and are respectively connected to the negative pressure suction cups (103) located on both sides; the outside of the elastic extension capsule (102) is connected to a pressure relief valve (118); and a laser measurement component is fixedly connected to one side adjacent to the two hard bearing parts (100) located at the middle position; The air outlet of the air outlet delivery pipe (107) is connected to a second electrically controlled multi-way diverter valve (200), one of the air outlets of the second electrically controlled multi-way diverter valve (200) is connected to the elastic extension capsule (102), the other two air outlets of the second electrically controlled multi-way diverter valve (200) are connected to a diverter pipe, one end of the diverter pipe away from the second electrically controlled multi-way diverter valve (200) is connected to an inclined push capsule (201), the inclined push capsule (201) is in the form of a right triangle, and the bottom edge of the right triangle inclined push capsule (201) is fixedly connected to the elastic extension capsule (102); The hard bearing portion (100) and the elastic extension sac (102) are both fixedly connected to a plurality of support sacs (300), the support sacs (300) penetrate the outer wall of the inclined pushing sac (201), the interior of the support sac (300) is filled with an electrorheological fluid (301), the exterior of the support sac (300) is connected to a plurality of current-carrying wires (302), and the conductive ends of the current-carrying wires (302) are electrically connected to the electrorheological fluid (301).

2. The deflection measuring device for dismantling a trussed composite arch bridge according to claim 1, characterized in that: The laser measurement assembly comprises a connecting plate (110), wherein the connecting plate (110) is fixedly connected to one side adjacent to two hard bearing parts (100) located at a middle position, and two lower expansion and extension capsules (111) are installed at the bottom of the connecting plate (110), and one side adjacent to the two lower expansion and extension capsules (111) is rotatably connected to a connecting seat (113), and one end of the connecting seat (113) away from the lower expansion and extension capsules (111) is fixedly connected to a connecting ring (114), and the interior of the connecting ring (114) is rotatably connected to a level meter (115) via a rotating shaft, and a laser assembly (116) is fixedly connected to the level meter (115), and a counterweight (117) is fixedly connected below the level meter (115), and the laser assembly (116) on the positioning and calibration assembly is a laser transmitter, and the laser assembly (116) on the positioning receiving assembly is a laser receiver.

3. The deflection measuring device for dismantling a trussed composite arch bridge according to claim 2, characterized in that: The laser measurement assembly further comprises two expansion air inlet pipes (112), the two expansion air inlet pipes (112) being respectively connected to the two lower expansion extension bags (111), and one end of the expansion air inlet pipe (112) away from the lower expansion extension bag (111) passes through the outer wall of the hard bearing part (100) and is connected to one of the air outlets of the first electrically controlled multi-way diverter valve (106).

4. The deflection measuring device for dismantling a truss composite arch bridge according to claim 3, characterized in that: A plurality of partition plates (400) are integrally formed inside the support capsule (300), a through hole is formed outside the partition plate (400), a filling cotton (401) is fixedly connected inside the through hole, the current-carrying wire (302) is wound around the outside of the filling cotton (401), the plurality of partition plates (400) are used to divide the inside of the support capsule (300) into a plurality of separate storage cavities, the electrorheological fluid (301) is stored inside the plurality of separate storage cavities, and the filling cotton (401) located inside the through hole is used to immerse the electrorheological fluid (301) and connect the plurality of storage cavities.

5. The deflection measuring device for dismantling a truss composite arch bridge according to claim 1, characterized in that: The exteriors of the two groups of hard bearing parts (100) located at both ends are fixedly connected with connecting ropes (500).

6. The deflection measuring device for dismantling a truss composite arch bridge according to claim 1, characterized in that: The adjacent sides of the two groups of hard bearing parts (100) located at the two end positions are both fixedly connected with a connecting rod (600).

7. The deflection measuring device for dismantling a truss composite arch bridge according to claim 1, characterized in that: One of the multiple negative pressure suction cups (103) is a Bernoulli suction cup, the air inlet of the Bernoulli suction cup is connected to a solenoid valve (700), the air inlet of the solenoid valve (700) is connected to a centralized air inlet pipe (701), and one end of the centralized air inlet pipe (701) away from the solenoid valve (700) is connected to the air outlet of the first electrically controlled multi-way diverter valve (106).

8. The deflection measuring device for dismantling a truss composite arch bridge according to claim 2, characterized in that: Air pressure sensors (800) are installed inside the lower expansion and extension bag (111) and the elastic extension bag body (102).

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