CN220732412U - Automatic grading alarm system for abrasion of bridge sliding support - Google Patents
Automatic grading alarm system for abrasion of bridge sliding support Download PDFInfo
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- CN220732412U CN220732412U CN202322404482.4U CN202322404482U CN220732412U CN 220732412 U CN220732412 U CN 220732412U CN 202322404482 U CN202322404482 U CN 202322404482U CN 220732412 U CN220732412 U CN 220732412U
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- 238000005299 abrasion Methods 0.000 title claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 229910001220 stainless steel Inorganic materials 0.000 claims description 45
- 239000010935 stainless steel Substances 0.000 claims description 45
- 238000000034 method Methods 0.000 abstract description 19
- 238000012544 monitoring process Methods 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 13
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model relates to an automatic grading alarm system for bridge sliding support wear, which effectively solves the problems that the existing method for monitoring the bridge sliding support wear consumes more manpower and material resources and has larger error; the technical scheme for solving the problems comprises the following steps: through installing the one-level alarm piece, second grade alarm piece respectively at the upper edge of middle steel welt, different alarm pieces can be in the use gradually with corrosion resistant plate contact formation closed loop, make electronic alarm send alarm signal and realize bridge sliding support uneven wear automatic classification alarming function.
Description
Technical Field
The utility model belongs to the technical field of bridge monitoring, and particularly relates to an automatic grading alarm system for bridge sliding support abrasion.
Background
The sliding plate abrasion of the bridge sliding support is mainly caused by a large amount of accumulated sliding displacement, the sliding plate abrasion is caused by the fact that the support slides reciprocally relatively under the action of vehicles and wind load, the amplitude of the sliding plate is tiny, but the frequency of the sliding plate is higher, and the sliding plate is gradually abraded under the action of long-term friction with an upper support plate;
in the use of the support, the sliding surface of the upper support plate adsorbs dust, and the abrasion of the sliding plate is greatly aggravated by the loss of lubricant in the sliding plate, and the research result shows that: the support slide is worn from a normal state to an exposed slide in the service process, even the friction of steel to steel occurs, the friction coefficient is increased to five times of a standard design value, if the support cannot slide normally due to untimely replacement, the structural stress is affected, the support is damaged, the damage of the support directly affects the change of the distribution of forces in a girder and a beam of an upper structure of a bridge, the situation seriously threatens the safety of the bridge structure, meanwhile, the original constraint system of the bridge is changed, the bridge is converted to a consolidation system, the earthquake resistance of the bridge is reduced, and the collapse risk in the earthquake of the bridge is increased;
at present, two main methods exist for early warning of the abrasion of a sliding support, one method is to arrange a self-detection material with a color marking function in the abrasion-resistant plate, and the abrasion degree of the support is determined by observing the color, but the method requires a worker to check regularly, so that the method is inconvenient;
the other method is to calculate the residual thickness of the sliding plate by using the accumulated sliding displacement, namely, horizontally arranging a displacement sensor on a bridge pier, then measuring the horizontal sliding distance of an upper support plate to indirectly obtain the residual thickness of the sliding plate (the abrasion loss of the sliding plate is estimated by measuring the horizontal sliding distance of the upper support plate), and realizing the early warning of the abrasion of the sliding plate of the sliding support by comparing the residual thickness with the allowable minimum sliding plate thickness, wherein the calculated residual thickness of the sliding plate has a larger error shape due to neglecting the influence of main factors such as compressive stress, friction rate and the like;
in view of the above, the present application provides an automatic grading alarm system for bridge shoe wear to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides an automatic grading alarm system for the wear of the bridge sliding support, which is characterized in that a primary alarm piece and a secondary alarm piece are respectively arranged on the upper edge of a middle steel lining plate, and different alarm pieces can gradually contact with a stainless steel plate to form a closed loop in the use process, so that an electronic alarm sends an alarm signal to realize the automatic grading alarm function of the uneven wear of the bridge sliding support.
The automatic grading alarm system for the abrasion of the bridge sliding support is characterized by comprising stainless steel plates and middle steel lining plates which are vertically arranged at intervals, wherein a plane sliding plate is arranged between the stainless steel plates, an upper support plate is arranged on the upper end face of each stainless steel plate, and a lower support plate is arranged on the lower end face of each middle steel lining plate;
the upper surface of the middle steel lining plate is symmetrically provided with a plurality of groups of grading alarm components, and each grading alarm component comprises a primary alarm piece, a secondary alarm piece and an electronic alarm;
the first-stage alarm sheet and the stainless steel plate are connected with the power supply of the electronic alarm in two stages through wires, and the second-stage alarm sheet and the stainless steel plate are connected with the power supply of the electronic alarm in two stages through wires;
the utility model discloses a high-speed alarm device, including the steel lining board, the one-level alarm piece below is equipped with the portion of collapsing and installs in middle steel lining board upper surface through the portion of collapsing, one-level alarm piece, the portion of collapsing total thickness is greater than the second grade alarm piece and one-level alarm piece thickness is less than the second grade alarm piece.
The technical scheme has the beneficial effects that:
in the scheme, the storage battery is arranged in the electronic alarm, the electronic alarm is in an open circuit state under normal conditions, the electronic alarm circuit is only turned on (sends an alarm signal) when the abrasion is serious, the electronic alarm has basically zero power consumption, the electronic alarm can completely adapt to a remote area without electricity, the solar panel can be selected to charge so as to prevent the battery from consuming power, and the electronic alarm has good durability;
in the scheme, the bridge support can be remotely and online monitored in real time through the electronic alarm, the personnel is not required to watch, the inspection times of the monitoring personnel are greatly reduced, and the manpower resources are saved;
(3) In this scheme, through being equipped with the portion of collapsing in one-level alarm piece bottom for after the one-level alarm piece receives the extrusion of stainless steel sheet, cause the portion of collapsing to collapse and make one-level alarm piece high decline (be less than second grade alarm piece upper surface height), reduced in subsequent process, when stainless steel sheet drives one-level alarm piece and produces reciprocating displacement at middle just welt upper surface along with the slip of upper bracket board, make it and second grade alarm piece contact and cause the probability that second grade alarm unit produced the false alarm, make monitoring data more reliable, accurate.
Drawings
FIG. 1 is a schematic diagram of the mounting relationship of a basin-type support and a hierarchical alarm assembly of the present utility model;
FIG. 2 is a schematic top view of the mounting relationship of the support and the hierarchical alarm assembly of the present utility model;
FIG. 3 is a schematic diagram of the mounting relationship of the crumple zone and the primary alarm panel of the present utility model;
FIG. 4 is a schematic diagram of the mounting relationship of the pressure bearing part, the crush boxes and the first-stage alarm pieces of the utility model;
FIG. 5 is a schematic view of the position of the primary alarm tag of the present utility model in two different states;
FIG. 6 is a schematic view of the crush can, pressure bearing portion, crush member structure of the present utility model;
FIG. 7 is a schematic diagram of the installation relationship of the spherical steel support and the hierarchical alarm assembly of the utility model;
fig. 8 is a schematic diagram of the electronic alarm circuit of the present utility model.
Description of the embodiments
The foregoing and other features, aspects and advantages of the present utility model will become more apparent from the following detailed description of embodiments of the present utility model when taken in conjunction with the accompanying drawings, wherein like reference characters refer to the same parts throughout the different views.
The support in this scheme can be basin type support or spherical steel support, at first uses basin type support to describe the explanation as the example, specifically as follows:
as shown in fig. 1, the basin-type support comprises stainless steel plates 1 and middle steel lining plates 2 which are vertically arranged at intervals, a plane sliding plate 3 (a plane polytetrafluoroethylene plate is mainly used for matching with the horizontal displacement of a bridge) is arranged between the stainless steel plates 1 and the middle steel lining plates 2, an upper support plate 4 is arranged on the upper end face of the stainless steel plates 1, a lower support plate 5 is arranged on the lower end face of the middle steel lining plates 2, a rubber plate 6 is arranged between the middle steel lining plates 2 and the lower support plate 5, and lubricant is smeared between the stainless steel plates 1 and the plane sliding plate 3 (the main structure of the basin-type support is as described above), and the improvement of the scheme is that: as shown in fig. 2, a plurality of grading alarm components are symmetrically arranged at the outer circumferential part of the upper end surface of the middle steel lining plate 2 (each grading alarm component realizes the abrasion monitoring of the corresponding part of the plane sliding plate 3, and a plurality of grading alarm components are matched to realize the comprehensive monitoring of the abrasion of the whole plane sliding plate 3);
the classifying alarm assembly comprises a first-level alarm sheet 7, a second-level alarm sheet 8 and an electronic alarm, wherein the first-level alarm sheet 7 and the second-level alarm sheet 8 are positioned in the same classifying alarm assembly and matched with each other, the intervals between the first-level alarm sheet and the second-level alarm sheet 8 are slightly set up (but the intervals between the first-level alarm sheet and the second-level alarm sheet are not too large, if the intervals are too large, the classified monitoring on the abrasion condition of a certain part of the planar sliding plate 3 is not easy to realize), the alarm sheet in the scheme is a metal conductive block, and can be fixed on the upper surface of the middle steel lining plate 2 in a magnetic attraction manner or fixed on the upper surface of the middle steel lining plate in a glue bonding manner, so that the rapid installation and fixation of the alarm assembly are realized, the working efficiency is improved, and the following is noted: each group of electronic alarms realizes the abrasion loss monitoring of the corresponding parts on the plane sliding plate 3, and the more the electronic alarms are arranged (the more the grading alarm components are), the more uniform abrasion monitoring of the plane sliding plate 3 can be realized;
the electronic alarm comprises a primary alarm unit 9 and a secondary alarm unit 10, wherein the primary alarm unit 9 is used for reminding replacement and early warning, the secondary alarm unit 10 is used for forced replacement and alarm, the primary alarm unit 9 sends out an alarm signal to represent that the abrasion degree of the planar sliding plate 3 is large, and replacement of the planar sliding plate 3 is suggested; the secondary alarm unit 10 sends out an alarm signal to represent that the abrasion degree of the plane slide plate 3 is large, the plane slide plate 3 needs to be forcedly replaced, a storage battery is arranged in the electronic alarm, the storage battery is connected with a solar panel through a photovoltaic charging controller (the solar panel can be fixedly arranged on a bridge deck at the position of a bridge support to be monitored), the storage battery is charged through solar energy, uninterrupted electric energy is further provided for the work of the electronic alarm, and the electronic alarm is connected with a monitoring center control system through a communication cable loop or a wireless transmission module, so that the remote and online (real-time) monitoring of the bridge support is further realized;
the distances between the upper end surfaces of the first-stage alarm sheet 7 and the second-stage alarm sheet 8 in each group of the grading alarm assemblies and the upper end surface of the middle steel lining plate 2 are different, the distance between the upper end surface of the first-stage alarm sheet 7 and the upper end surface of the middle steel lining plate 2 is set as S1, the distance between the upper end surface of the second-stage alarm sheet 8 and the upper end surface of the middle steel lining plate 2 is set as S2 (S1 is larger than S2), the S1 and the S2 (the specific thickness of the grading alarm sheet) in the scheme are not limited, the specific thickness of the grading alarm sheet can be calculated according to engineering experience, and a proper alarm effect can be realized;
as shown in fig. 8, the stainless steel plate 1, the first-stage alarm piece 7 correspond to a switch in an electrical circuit, and when the stainless steel plate 1, the first-stage alarm piece 7 are not in contact, the switch is in an open state, and when the stainless steel plate 1, the first-stage alarm piece 7 are in contact, the switch is in a closed state;
the first-stage alarm sheet 7 is connected with the positive electrode (negative electrode) of the first-stage alarm unit 9 through a wire, and the stainless steel plate 1 is connected with the negative electrode (positive electrode) of the first-stage alarm unit 9 through a wire;
the secondary alarm sheet 8 is connected with the positive electrode (negative electrode) of the secondary alarm unit 10 through a wire, and the stainless steel plate 1 is connected with the negative electrode (positive electrode) of the secondary alarm unit 10 through a wire;
in the running process of the bridge support, as the bridge is subjected to relative reciprocating sliding with small amplitude and higher frequency under the action of a vehicle and wind load, the plane slide plate 3 is gradually worn under the action of long-term friction with the upper support, and in the using process of the support, dust is adsorbed on the sliding surface of the upper support plate 4 and the loss of lubricant in the plane slide plate 3 greatly aggravate the wear of the plane slide plate 3, when the exposed height S1 of a certain part of the plane slide plate 3 is not reached, the stainless steel plate 1 is contacted with the first-stage alarm piece 7 positioned at the part (or closest to the part) and forms a passage, as shown in a broken line frame B in fig. 8, at the moment, the stainless steel plate 1 is contacted with the upper end surface of the first-stage alarm piece 7, so that a loop is communicated, and the first-stage alarm unit 9 immediately sends an alarm signal, thereby reminding a worker and suggesting the worker to replace the plane slide plate 3;
as the support continues to be subjected to the action of vehicles and wind loads in the subsequent operation process, the support continues to generate amplitude (in the process, the plane sliding plate 3 is continuously worn and the wearing capacity is gradually increased), so that when the residual height of the plane sliding plate 3 is S2, the stainless steel plate 1 is contacted with the corresponding secondary alarm piece 8 and forms a passage, at the moment, an alarm signal is immediately generated by the secondary alarm unit 10, workers are notified to immediately replace the plane sliding plate 3, after the secondary alarm unit 10 generates an alarm, the surface of the plane sliding plate 3 is almost worn out, if the plane sliding plate 3 is not immediately replaced, friction is generated between the stainless steel plate 1 and the middle rigid lining plate, the friction coefficient is increased to five times of a standard design value, if the plane sliding plate 1 is not replaced in time, the support cannot slide normally, structural stress is influenced, the support is damaged, the damage of the support directly influences the distribution of forces in a girder and a beam of an upper structure of a bridge, and the safety of the bridge is seriously threatened;
the operation and working process of the classifying alarm assembly for the bridge basin-type support is described and illustrated below for the bridge spherical steel support, and the following steps are concrete:
as shown in fig. 7, the spherical steel support structure schematic diagram comprises an upper support plate 4 and a lower support plate 5, wherein a stainless steel plate 1 is arranged on the lower end surface of the upper support plate 4, a plane sliding plate 3 is arranged below the stainless steel plate 1, the plane sliding plate 3 is arranged in the middle steel lining plate 2, and the following steps are adopted: the lower surface of the middle steel lining plate 2 in the spherical steel support is arc-shaped, a spherical sliding plate 14 is arranged below the middle steel lining plate 2, the spherical sliding plate (spherical polytetrafluoroethylene plate) 14 is fixedly arranged on the lower support (the spherical steel support structure is not described too much), the implementation process of the graded alarm for the spherical steel support is the same as that of the basin-type support, and the installation position is as follows:
the upper surface of the middle steel lining plate 2 and the upper end surface of the lower support (the part of the middle steel lining plate 2 below the vertical projection) are respectively provided with a plurality of grading alarm components, each grading alarm component comprises a first-stage alarm sheet 7, a second-stage alarm sheet 8 and an electronic alarm, the connection principle of the electronic alarm and the arrangement modes of the first-stage alarm sheet 7 and the second-stage alarm sheet 8 are the same as those of the grading alarm components in the basin-type support (namely, the alarm sheet arranged on the upper surface of the middle steel lining plate is connected with the first stage of an alarm unit power supply corresponding to the middle steel lining plate, the other stage of the alarm unit power supply is connected with a stainless steel plate and forms an electrical circuit, and the alarm sheet arranged on the upper surface of the lower support plate is connected with the first stage of the alarm unit power supply corresponding to the stainless steel plate, and the other stage of the alarm unit power supply is connected with the middle steel lining plate and forms the electrical circuit), and the only difference is that: the upper end surfaces of the primary alarm piece 7 and the secondary alarm piece 8 which are arranged on the upper surface of the lower support (the position below the vertical projection of the middle steel lining plate 2) are arranged as chamfer surfaces so as to be matched with the arc-shaped surface of the lower end surface of the middle steel lining plate 2;
when the bridge support is in operation, the real-time monitoring (early warning) of the abrasion of the plane sliding plate 3 can be realized through the grading alarm component arranged at the upper surface position of the middle steel lining plate 2, the real-time monitoring (early warning) of the abrasion of the spherical sliding plate 14 can be realized through the grading alarm component arranged at the upper surface position of the lower supporting plate 5, when the abrasion amount of the spherical sliding plate is large, the lower end surface of the middle steel lining plate is contacted with the first-stage alarm piece arranged on the lower supporting plate at first, the first-stage alarm unit is further realized, and as the abrasion amount of the spherical sliding plate is further increased, the lower end surface of the middle steel lining plate is contacted with the second-stage alarm piece arranged on the lower supporting plate, the second-stage alarm unit is further realized, and finally the grading monitoring and the alarm of the bridge support are realized;
as shown in fig. 2, since the installation distance of the first-stage alarm piece 7 and the second-stage alarm piece 8 in each group of the hierarchical alarm components is not too far, if the installation distance of the first-stage alarm piece 7 and the second-stage alarm piece 8 is too far, the hierarchical monitoring of a certain part of the plane slide plate 3 (the spherical slide plate 14) is affected, when the wear degree of the certain part of the plane slide plate 3 (the spherical slide plate 14) firstly reaches the alarm condition of the first-stage alarm unit 9 due to factors such as vehicle load and the like, in the subsequent bridge operation process, compared with the wear degree of other parts (unworn or small wear amount) of the plane slide plate 3 (the spherical slide plate 14), the wear degree of the part can reach the wear degree of the second-stage alarm unit 10 faster, if the installation distance between the first-stage alarm piece 7 and the second-stage alarm piece 8 is too far, the second-stage alarm unit 10 cannot timely generate an alarm after the alarm, and further, when the wear degree of the plane slide plate 3 (the spherical slide plate 14) at the position of the first-stage alarm unit 9 reaches the alarm condition of the second-stage alarm unit 10, the working personnel in the monitoring room does not know that the wear degree of the parts, and the wear degree of the bridge is bad for the real monitoring and the bridge operation;
therefore, when the hierarchical alarm assembly is set, the distance between the first-stage alarm piece 7 and the second-stage alarm piece 8 which are matched needs to be installed as close as possible, but when the distance between the two pieces is set to be close, a new problem is brought, namely, after the first-stage alarm unit 9 gives an alarm (at this time, the stainless steel plate 1 installed on the lower end surface of the upper support is already abutted on the upper end surface of the first-stage alarm piece 7), in the following bridge operation process, when the support slides again, the following conditions exist: the stainless steel plate 1 synchronously drives the first-stage alarm piece 7 which is abutted with the stainless steel plate along with the sliding of the upper support to slide relative to the upper surface of the middle steel lining plate 2, and the installation distance between the first-stage alarm piece 7 and the second-stage alarm piece 8 is relatively close, so that the following occurs: the phenomenon that the first-stage alarm piece 7 is contacted with the second-stage alarm piece 8 in the sliding process relative to the middle steel lining plate 2 is caused, because the abrasion degree of the plane sliding plate 3 at the moment is insufficient to enable the stainless steel plate 1 to be contacted with the upper end face of the second-stage alarm piece 8, but because the stainless steel plate 1 is abutted with the first-stage alarm piece 7 and the first-stage alarm piece 7 is contacted with the second-stage alarm piece 8, an electric loop where the second-stage alarm unit 10 is located is further caused to be in a passage state (namely, the first-stage alarm piece 7 is communicated with the second-stage alarm piece 8 and the stainless steel plate 1), and the second-stage alarm unit 10 is caused to generate false alarm.
As shown in fig. 3, the secondary alarm piece 8 is not adjusted (the thickness of the secondary alarm piece is S2), a crumple part is arranged below the primary alarm piece 7, the thickness of the crumple part and the thickness of the primary alarm piece 7 are S1, as shown in fig. 6, the crumple part comprises a crumple box 11 (the crumple box 11 is made of a non-conductive material), an opening is arranged at the upper end of the crumple box 11, a pressure-bearing part 12 is arranged in the opening, four side walls of the pressure-bearing part 12 and four side walls of the opening are arranged at a certain distance, the four side walls of the pressure-bearing part 12 are respectively connected with the four side walls of the opening through crumple pieces 13 (the crumple pieces 13 are made of a material which is easy to break under stress), as shown in fig. 4, the primary alarm piece 7 is fixedly arranged at the upper surface position of the pressure-bearing part 12, the bottom of the crumple box 11 is adhered to the upper surface of the middle steel lining plate 2 through glue, the primary alarm piece 7 is adhered to the upper surface of the pressure-bearing part 12 through glue, and the injection: the height of the crumple box 11 is lower than that of the secondary alarm piece 8 (as shown in figure 3), and the connection modes among the primary alarm piece 7, the secondary alarm piece 8 and the corresponding alarm units are not adjusted;
when the abrasion degree of the plane sliding plate 3 is increased along with the increase of the abrasion degree of the plane sliding plate 3 in the operation process of the bridge, so that the lower end surface of the stainless steel plate 1 is in contact with the first-stage alarm piece 7, at the moment, the loop of the first-stage alarm unit 9 is in a passage state and generates an alarm signal, a worker is recommended to replace the plane sliding plate 3, as shown in the upper side view of fig. 5, the lower end surface of the stainless steel plate 1 is abutted against the upper end surface of the first-stage alarm piece 7 (at the moment, a certain amount of abutting force is already provided between the stainless steel plate 1 and the first-stage alarm piece 7), after the first-stage alarm unit 9 generates an alarm signal, the abrasion degree of the plane sliding plate 3 is further increased along with the continuous operation of the bridge, the abutting force of the stainless steel plate 1 on the upper end surface of the first-stage alarm piece 7 is synchronously increased, and then the abutting force of the first-stage alarm piece 13 connected between the pressure-bearing part 12 and the first-stage alarm piece 11 is caused to break (after the first-stage alarm unit 9 alarms, the first-stage alarm piece 7 can break the first-stage alarm piece 13 only by being slightly acted on the stainless steel plate 1), at the same time, the pressure-stage alarm part 12 falls down into the first-stage alarm piece 11, the first-stage alarm piece 7 drops into the first-stage alarm piece 11, and then the second-stage alarm piece 7 is synchronously drops into the contact with the second-stage alarm piece 7 when the second-stage alarm piece 7 is continuously contacts the stainless steel plate 7 with the upper end surface 1 with the upper end surface of the first-stage alarm piece 7 (and the first-stage alarm piece 1 continuously, and the first-stage alarm piece 1 is contacted with the first-stage alarm piece 1 continuously, and the abrasion piece is prevented from contacting with the first-stage alarm piece 1, that is, at this time, the lower end surface of the stainless steel plate 1 is in contact with the upper end surface of the secondary alarm piece 8 and the loop of the secondary alarm unit 10 is in a passage state, so that the secondary alarm unit 10 generates an alarm signal (notifying a worker to immediately perform the replacement work of the slide plate), the probability of false alarm generated by the electronic alarm is reduced by arranging the crumple under the primary alarm piece 7, and the hierarchical alarm system is more reliable.
The above description is only for the purpose of illustrating the utility model, and it should be understood that the utility model is not limited to the above embodiments, but various modifications consistent with the idea of the utility model are within the scope of the utility model.
Claims (6)
1. The automatic grading alarm system for the abrasion of the bridge sliding support is characterized by comprising stainless steel plates (1) and middle steel lining plates (2) which are vertically arranged at intervals, wherein a plane sliding plate (3) is arranged between the stainless steel plates, an upper support plate (4) is arranged on the upper end face of each stainless steel plate (1), and a lower support plate (5) is arranged on the lower end face of each middle steel lining plate (2);
the upper surface of the middle steel lining plate (2) is symmetrically provided with a plurality of groups of grading alarm components, and each grading alarm component comprises a primary alarm sheet (7), a secondary alarm sheet (8) and an electronic alarm;
the first-stage alarm sheet (7) and the stainless steel plate (1) are connected with the power supply of the electronic alarm in two stages through wires, and the second-stage alarm sheet (8) and the stainless steel plate (1) are connected with the power supply of the electronic alarm in two stages through wires;
the utility model discloses a steel lining plate, including steel lining plate (2), one-level alarm piece (7) below is equipped with the portion of collapsing and installs in middle steel lining plate (2) upper surface through the portion of collapsing, one-level alarm piece (7), the portion total thickness of collapsing are greater than second grade alarm piece (8) and one-level alarm piece (7) thickness is less than second grade alarm piece (8).
2. The automatic grading alarm system for bridge sliding support wear according to claim 1, wherein the electronic alarm comprises a primary alarm unit (9) and a secondary alarm unit (10);
the primary alarm sheet (7) and the stainless steel plate (1) are respectively connected with a power supply of the primary alarm unit (9) in two stages through wires;
the secondary alarm sheet (8) and the stainless steel plate (1) are respectively connected with the power supply of the secondary alarm unit (10) through wires in two stages.
3. The automatic grading alarm system for bridge sliding support wear according to claim 1, wherein the total thickness of the crumple is smaller than the thickness of the secondary alarm piece (8).
4. The automatic grading alarm system for bridge sliding support wear according to claim 3, wherein the collapse part comprises a collapse box (11) with a hollow inside, and a pressure bearing part (12) which is arranged at a distance from the collapse box (11) body is arranged on the upper surface of the collapse box (11);
the pressure-bearing part (12) is connected with the body of the crumple box (11) through a crumple piece (13), and the primary alarm piece (7) is arranged on the upper surface of the pressure-bearing part (12).
5. The automatic grading alarm system for bridge sliding support wear according to claim 1, wherein the primary alarm piece (7) and the secondary alarm piece (8) in the same grading alarm assembly are adjacently installed.
6. The automatic grading alarm system for bridge sliding support wear according to any one of claims 1-5, wherein a storage battery is arranged in the electronic alarm and is connected with a solar panel through a photovoltaic charge controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322404482.4U CN220732412U (en) | 2023-09-05 | 2023-09-05 | Automatic grading alarm system for abrasion of bridge sliding support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322404482.4U CN220732412U (en) | 2023-09-05 | 2023-09-05 | Automatic grading alarm system for abrasion of bridge sliding support |
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| Publication Number | Publication Date |
|---|---|
| CN220732412U true CN220732412U (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322404482.4U Active CN220732412U (en) | 2023-09-05 | 2023-09-05 | Automatic grading alarm system for abrasion of bridge sliding support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220732412U (en) |
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2023
- 2023-09-05 CN CN202322404482.4U patent/CN220732412U/en active Active
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