Automatic monitoring device for settlement of temporary steel bridge

Abstract

The utility model discloses an automatic monitoring device for settlement of a temporary steel bridge. The automatic monitoring device comprises a monitoring mechanism and a supporting mechanism. The monitoring mechanism comprises a main body container, a capacitance displacement sensor and a controller; a liquid adding valve is mounted at the lower part of one side plate of the main body container; the capacitive displacement sensor is mounted at the middle lower part of the inner cavity of the main body container; the controller is mounted on a front end plate at the lower part of the main body container; the supporting mechanism comprises a base, a worm and gear mechanism and a supporting top plate. A worm of the worm and gear mechanism is bridged between the middle parts of the two supporting side plates; a worm gear of the worm and gear mechanism is bridged between the middle parts of the two supporting end plates and is meshed with the upper part of a worm; the supporting top plate is connected to the bottom of the container bottom plate, two guide plates are fixed to the bottom face of the supporting top plate, the bottom faces of the guide plates are upper semicircular arc faces, the guide plates slidably ride on the top faces of the two supporting end plates in a one-to-one correspondence mode, and a connecting plate with the lower portion fixedly arranged on the worm wheel shaft in a sleeving mode is further fixed to the bottom face of the supporting top plate. The settlement condition of the temporary steel bridge can be found in time.

Description

Technical Field

[0001] The utility model relates to an automatic monitoring device for the settlement of a steel temporary bridge. Background Art

[0002] A steel temporary bridge is a temporarily erected bridge structure, usually used to replace the original bridge during construction, maintenance or emergencies to ensure traffic continuity. They are usually made of steel, easy to erect and demolish quickly, and have a high load-bearing capacity.

[0003] The settlement of a steel temporary bridge refers to the phenomenon that the piers or abutments of the bridge structure undergo downward displacement in the vertical direction under the action of factors such as its own weight, load, and changes in soil geology. This settlement may be caused by soil compression, groundwater level changes, insufficient bearing capacity, etc. If not controlled and monitored, it may affect the safety and service life of the bridge. Currently, the monitoring method for the settlement of steel temporary bridges is manual monitoring by using equipment such as a level or total station, which makes it difficult to detect the settlement phenomenon in a timely manner and is prone to causing safety accidents. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide an automatic monitoring device for the settlement of a steel temporary bridge, which can monitor the steel temporary bridge in real time and timely detect the settlement situation of the steel temporary bridge.

[0005] The purpose of the utility model is achieved as follows: an automatic monitoring device for the settlement of a steel temporary bridge, including a monitoring mechanism and a support mechanism; wherein,

[0006] The monitoring mechanism includes a main body container, a capacitance displacement sensor and a controller;

[0007] The plane of the main body container is rectangular and fixed on the container bottom plate. A first liquid filling port is opened at the lower part of one side plate of the main body container, and a liquid filling valve is installed on the first liquid filling port;

[0008] The capacitance displacement sensor is installed in a shielding sleeve, and the shielding sleeve is suspended in the middle and lower part of the inner cavity of the main body container through a plastic hose;

[0009] The controller is installed on the lower front end plate of the main body container and is electrically connected to the capacitance displacement sensor;

[0010] The support mechanism includes a support base plate, a worm and worm gear mechanism, and a support top plate; the support base plate is rectangular and has a support side plate fixed to each of the two sides of the top surface, and a support end plate with an upper semi-circular arc surface on the top surface is fixed to each of the two ends of the top surface of the support base plate; the worm of the worm and worm gear mechanism is bridged between the middle parts of the two support side plates through a worm shaft; the worm gear of the worm and worm gear mechanism is bridged between the middle parts of the two support end plates through a worm gear shaft and meshes with the upper part of the worm; the support top plate is connected to the bottom of the container base plate by bolts, and two guide plates with upper semi-circular arc surfaces on the bottom surfaces are fixed to the bottom surface of the support top plate and slide on the top surfaces of the two support end plates in a one-to-one correspondence, and a connecting plate with its lower part sleeved on the worm gear shaft is also fixed to the bottom surface of the support top plate.

[0011] The above-mentioned automatic monitoring device for the settlement of the steel temporary bridge, wherein the main container is divided into a lower container and an upper container connected to the center of the top surface of the lower container, and the planar dimension of the upper container is smaller than that of the lower container; a second liquid filling port is opened in the upper part of one side plate of the lower container, and a liquid filling door is hinged to the second liquid filling port; a ventilation hole is opened in the upper part of the other side plate of the lower container, and a ventilation valve is installed in the ventilation hole.

[0012] The above-mentioned automatic monitoring device for the settlement of the steel temporary bridge, wherein a sealing ring is provided on the outer peripheral surface of the liquid filling door.

[0013] The above-mentioned automatic monitoring device for the settlement of the steel temporary bridge, wherein one end of the worm shaft in the support mechanism passes through a support side plate and then a hand wheel is installed.

[0014] The characteristics of the automatic monitoring device for the settlement of the steel temporary bridge of the present utility model are: it can monitor the steel temporary bridge in real time, can timely detect the settlement situation of the steel temporary bridge, and solves the problem that the current bridge settlement situation needs to be manually monitored and it is difficult to detect the settlement situation in time. Description of the Drawings

[0015] Figure 1 is a perspective view of the automatic monitoring device for the settlement of the steel temporary bridge of the present utility model;

[0016] Figure 2 is a perspective view of the monitoring mechanism in the automatic monitoring device for the settlement of the steel temporary bridge of the present utility model;

[0017] Figure 3 is a sectional view of the monitoring mechanism in the automatic monitoring device for the settlement of the steel temporary bridge of the present utility model;

[0018] Figure 4 is Figure 3 an enlarged view of part A in

[0019] Figure 5 is a perspective view of the support mechanism in the automatic monitoring device for the settlement of the steel temporary bridge of the present utility model. DETAILED DESCRIPTION

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

[0021] See also Figures 1 to 5 The automatic monitoring device for settlement of a temporary steel bridge of the present invention comprises a monitoring mechanism 1 and a supporting mechanism 2.

[0022] The monitoring mechanism 1 includes a main container 101, a capacitance displacement sensor 104 and a controller 109; wherein,

[0023] The main container 101 is divided into a lower container and an upper container connected to the center of the top surface of the lower container, and the plane size of the upper container is smaller than that of the lower container; the main container 101 is fixed on the container bottom plate 113, and a plurality of connecting holes 108 are provided on the four edges of the container bottom plate 113; a first liquid filling port is provided at the lower part of one side plate of the lower container, and a liquid filling valve 107 is installed on the first liquid filling port, and a rectangular second liquid filling port is provided at the upper part of the side plate, and a liquid filling door 111 is hinged on the second liquid filling port, and a sealing ring 112 is provided on the outer peripheral surface of the liquid filling door 111, and the sealing ring 112 can provide a sealing effect for the liquid filling door 111, so that air is not easy to enter the interior of the main container 101 through the gap between the liquid filling door 111 and the second liquid filling port; an air vent is provided at the upper part of the other side plate of the lower container, and an air exchange valve 110 is installed in the air vent;

[0024] The capacitive displacement sensor 104 is installed in the shielding sleeve 103. The top of the shielding sleeve 103 is connected to the plastic hose 102. The signal line of the capacitive displacement sensor 104 is passed through the plastic hose 102. The plastic hose 102 passes through the through hole opened in the top plate.

[0025] The controller 109 is mounted on the front end plate of the lower container and is electrically connected to the signal line of the capacitive displacement sensor 104 . A communication module is installed in the controller 109 .

[0026] The support mechanism 2 includes a support base plate 201, a worm gear mechanism and a support top plate 208; wherein,

[0027] The support base plate 201 is rectangular and has a support side plate 202 fixed on each side of the top surface. The two ends of the top surface of the support base plate 201 are each fixed with a support end plate 203 with a top surface of an upper semicircular arc surface.

[0028] The worm 205 of the worm gear mechanism is connected between the middle parts of the two supporting side plates 202. One end of the worm shaft passes through one supporting side plate 202 and is then installed with a handwheel. The worm wheel 206 of the worm gear mechanism is connected between the middle parts of the two supporting end plates 203 through the worm shaft 204 and is meshed with the upper part of the worm 205.

[0029] The four peripheral edges of the supporting top plate 208 are also provided with connection holes corresponding one by one to the connection holes on the container bottom plate 113, so that the supporting top plate 208 is bolted to the bottom surface of the container bottom plate 113, enabling the main container 101 to be detached from the supporting top plate 208, thereby saving more space when carrying the automatic monitoring device of the present utility model; two guiding plates 209 are fixed on the bottom surface of the supporting top plate 208, and the bottom surface of the guiding plate 209 is a semi-circular arc surface in the upper part, so that the two guiding plates 209 can ride on the top surfaces of the two supporting end plates 203 correspondingly and slidably. A connecting plate 207 with its lower part sleeved on the worm wheel shaft 204 is also fixed on the bottom surface of the supporting top plate 208.

[0030] When monitoring the settlement of the steel temporary bridge, multiple automatic monitoring devices of the present utility model are adopted. First, liquid is filled into the corresponding main container 101 through the liquid filling valve 111 of each automatic monitoring device to ensure that the liquid levels inside the main containers 101 of multiple automatic monitoring devices are the same. Then, the multiple automatic monitoring devices are installed at equal intervals and at the same height on the monitoring points on the surface of the steel temporary bridge. When the elevation of the surface of the steel temporary bridge at a certain monitoring point changes, the liquid level in the main container 101 of the automatic monitoring device at this monitoring point will change relative to the liquid levels in the main containers 101 of the automatic monitoring devices at other monitoring points, causing a change in the relative position of the capacitive displacement sensor 104. By comparing the detection data of the capacitive displacement sensors 104 in multiple automatic monitoring devices, the liquid level changes in the main containers 101 in multiple automatic monitoring devices can be measured, and thus the relative settlement conditions of the monitoring points can be calculated to achieve the automatic monitoring effect of the settlement of the steel temporary bridge. The controller 109 can receive the signals transmitted by the capacitive displacement sensor 104 and transmit them to the Internet cloud platform through the communication module, so that the signals transmitted by multiple capacitive displacement sensors 104 can be transmitted to the cloud platform for comparison and processing.

[0031] The support mechanism 2 can adjust the verticality of the main container 101; by rotating the worm 205 through the handwheel, the worm 205 drives the worm wheel 206 to rotate, but the worm wheel 206 cannot drive the worm 205 to rotate, so that the worm wheel 206 can obtain a self-locking effect after rotation. When the worm wheel 206 rotates, the worm wheel 206 drives the connecting plate 207 and the supporting top plate 208 to rotate together through the worm wheel shaft 204, so as to change the vertical state of the container bottom plate 113 and the main container 101, enabling the main container 101 to remain vertical after installation and preventing the liquid inside the main container 101 from tilting to one side. When the connecting plate 207 drives the supporting top plate 208 to rotate, the supporting top plate 208 can slide on the top surfaces of the two supporting end plates 203 correspondingly through the two guiding plates 209, so that the supporting top plate 208 can obtain an auxiliary support effect, thereby improving the stability of the main container 101.

[0032] In an environment with a relatively high temperature or a dry area, to prevent the evaporation of moisture in the main container 101, the liquid addition door 111 can be opened to add non-volatile silicone oil or liquid paraffin into the main container 101, so that the silicone oil or paraffin covers the surface of the liquid to form an oil film with a thickness of 1 mm to 2 mm to isolate the air, thereby restricting the evaporation of moisture in the container 101.

[0033] When the liquid is injected into the main container 101 through the liquid addition valve 107, the liquid will occupy a certain volume, resulting in a decrease in the gas volume in the main container 101 and an increase in the gas pressure. After the ventilation valve 110 is opened, it allows the outside air to enter, which can effectively balance the pressure difference inside and outside the main container 101 and prevent damage to the main container 101 and the shielding sleeve 103 due to excessive pressure.

[0034] The above embodiments are only for illustrating the present utility model and not for limiting the present utility model. Those skilled in the relevant technical fields can also make various changes or modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions should also fall within the scope of the present utility model, which should be defined by each claim.

Claims

1. An automatic monitoring device for the settlement of a steel temporary bridge, comprising a monitoring mechanism and a support mechanism; characterized in that, The monitoring mechanism includes a main body container, a capacitance displacement sensor and a controller; The plane of the main body container is rectangular and fixed on the container bottom plate. A first liquid filling port is opened at the lower part of one side plate of the main body container, and a liquid filling valve is installed on the first liquid filling port; The capacitance displacement sensor is installed in a shielding sleeve, and the shielding sleeve is suspended in the middle and lower part of the inner cavity of the main body container through a plastic hose; The controller is installed on the lower front end plate of the main body container and is electrically connected to the capacitance displacement sensor; The support mechanism includes a support bottom plate, a worm and worm gear mechanism and a support top plate; the support bottom plate is rectangular and a support side plate is fixed on each side of the top surface. Support end plates with upper semi-circular arc surfaces are fixed at both ends of the top surface of the support bottom plate; one end of the worm shaft of the worm and worm gear mechanism straddles between the middle parts of the two support side plates; the worm gear of the worm and worm gear mechanism straddles between the middle parts of the two support end plates through a worm gear shaft and meshes with the upper part of the worm; the support top plate is connected to the bottom of the container bottom plate by bolts. Two guide plates with upper semi-circular arc surfaces on the bottom surface and sliding on the top surfaces of the two support end plates one by one are fixed on the bottom surface of the support top plate, and a connecting plate with the lower part sleeved on the worm gear shaft is also fixed on the bottom surface of the support top plate.

2. The automatic monitoring device for the settlement of the steel temporary bridge according to claim 1, wherein, The main body container is divided into a lower container and an upper container connected to the center of the top surface of the lower container. The plane size of the upper container is smaller than that of the lower container; a second liquid filling port is opened at the upper part of one side plate of the lower container, and a liquid filling door is hinged on the second liquid filling port; a ventilation hole is opened at the upper part of the other side plate of the lower container, and a ventilation valve is installed in the ventilation hole.

3. The automatic monitoring device for the settlement of the steel temporary bridge according to claim 2, wherein, A sealing ring is provided on the outer peripheral surface of the liquid filling door.

4. The automatic monitoring device for the settlement of the steel temporary bridge according to claim 1, characterized in that, One end of the worm shaft in the support mechanism passes through a support side plate and then a handwheel is installed.

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