Bridge maintenance device and maintenance method

Abstract

The present invention discloses a bridge maintenance device, comprising: a plurality of water tank assemblies, a plurality of pump connection assemblies, and a plurality of spraying assemblies which are arranged inside the pump connection assemblies. One spraying assembly is correspondingly arranged for one group of pump connection assemblies. Each spraying assembly includes a group of buffer bases which are inserted and connected with a connecting seat, and a spraying rod arranged on the top of the buffer bases. Spraying nozzles are arranged on the spraying rod; the group of buffer bases includes a plurality of buffer bases which are sequentially inserted and connected and extend from both sides of the bridge deck towards the center direction. The heights of the plurality of buffer bases gradually decrease. A flow dividing nozzle is arranged on the spraying rod at the top of the outermost buffer base, and high-pressure nozzles are arranged on the spraying rods at the tops of the remaining buffer bases. The present invention can automatically plan a reasonable maintenance time period, does not affect the normal passage of vehicles, and simultaneously takes into account the dual functions of guardrail protection and bridge maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction. More specifically, the present invention relates to a bridge maintenance device and a maintenance method therefor. Background Art

[0002] With the continuous development and progress of China's economy, the number of vehicles has also been increasing. The increase in the number of vehicles has accelerated the aging and damage of bridges. With the annual growth of vehicles, bridges are facing severe tests. In order to increase the service life of bridges, maintenance work is particularly important. The existing bridge maintenance devices generally have the following defects: First, most of them are regular maintenance devices, which have a great impact on the normal passage of vehicles; Second, they have a single function, either a protection device for guardrails or a maintenance device for bridge decks; Third, their structures are fixed, which does not conform to the advanced prefabricated construction concept. For example, the utility model patent with the publication number CN218027186, the publication date of December 13, 2022, and the name of a bridge protection device discloses a protection device only for guardrails. Another example is the invention patent with the publication number CN115506220A, the publication date of December 23, 2022, and the name of a road bridge maintenance device, which discloses a maintenance device only for bridge decks, and the maintenance device needs to plan the maintenance period, otherwise it will have a great impact on the normal passage of vehicles. Summary of the Invention

[0003] An object of the present invention is to solve at least the above problems and provide at least the advantages described hereinafter.

[0004] Another object of the present invention is to provide a bridge maintenance device that can automatically plan a reasonable maintenance time period, has little impact on the normal passage of vehicles, and simultaneously takes into account the dual functions of guardrail protection and bridge deck maintenance.

[0005] To achieve these objects and other advantages in accordance with the present invention, there is provided a bridge maintenance device, comprising:

[0006] A plurality of water tank assemblies arranged along the bridge deck extension direction on both sides of the bridge deck, each water tank assembly including a water tank body and a connecting water pipe provided on the side of the water tank body for communicating between the water tank bodies;

[0007] A plurality of pump connection assemblies provided inside the water tank assemblies, one pump connection assembly corresponding to each water tank assembly inside, each pump connection assembly including a plurality of sets of connection seats inserted and connected to the water tank body and a pump body provided on the connection seats, one interface of the pump body being connected to the bottom of the water tank body, and the other interface being connected to a multi-way joint;

[0008] Multiple spraying components are provided inside the pump connection component. One spraying component is correspondingly provided for one set of pump connection components. Each spraying component includes a set of buffer bases inserted and connected to the connection seat and a spray bar arranged on the top of the buffer bases. Nozzles are provided on the spray bar.

[0009] Among them, the set of buffer bases includes multiple buffer bases inserted and connected in sequence, extending from both sides of the bridge deck towards the center direction. The heights of the multiple buffer bases gradually decrease. Shunt nozzles are arranged on the spray bar on the top of the outermost buffer base, and high-pressure nozzles are arranged on the spray bars on the tops of the remaining buffer bases.

[0010] Preferably, socket grooves and socket protrusions are respectively arranged on the corresponding surfaces of the water tank body and the connection seat; socket grooves and socket protrusions are respectively arranged on the corresponding surfaces of the connection seat and the buffer base; socket grooves and socket protrusions are respectively arranged on the corresponding surfaces between the buffer bases.

[0011] Preferably, the sum of the interface numbers of all multi-way joints corresponds to the total number of water inlets of the spray bar, and the interfaces of the multi-way joints are respectively connected to the water inlets of the spray bar.

[0012] Preferably, the bridge maintenance device further includes a water tank base, which is arranged at the bottom of the water tank body.

[0013] Preferably, a camera is further arranged on the top of the spray bar, and its imaging range covers at least the spraying range of the nozzles on the spray bar.

[0014] Preferably, the buffer base includes two relatively arranged panels and buffer springs arranged between the two panels.

[0015] The present invention further claims to protect the bridge maintenance method of the bridge maintenance device, including:

[0016] Step 1: The cameras on the bridge maintenance devices on both sides of the bridge take 1-2 bridge deck images per second, and respectively analyze the obtained bridge deck images on both sides to obtain the safe maintenance time periods on both sides; the method for obtaining the safe maintenance time period is as follows:

[0017] The first step: Respectively obtain all the bridge deck images collected in the previous 7 days in front of the cameras on both sides. Taking 0 o'clock as the starting time and 24 o'clock as the ending time, the above 24 hours are divided into multiple unit time periods, and the starting time intervals between any two adjacent unit time periods are 1-2 minutes;

[0018] The second step: Respectively analyze the bridge deck images obtained by all the cameras on the same side in each unit time period every day, calculate the non-empty ratio of each unit time period every day, and calculate the average non-empty ratio of the same unit time period within 7 days. The non-empty ratio is the percentage of the bridge deck images containing vehicles in each unit time period every day in all the bridge deck images in the corresponding unit time period.

[0019] Step 3: Obtain all unit time periods with an average non-empty ratio less than 2-5%, merge adjacent unit time periods, and obtain multiple safe maintenance time periods;

[0020] Step 2: Set the maintenance cycle, select the safe maintenance time periods with a duration greater than or equal to 15 minutes, turn on the sprinkler heads for maintenance. If a vehicle appears in the real-time image, stop the maintenance. The cumulative maintenance time within 24 hours does not exceed 40-80 minutes.

[0021] Preferably, in the first 3 days after the equipment is installed, only the camera is turned on without maintenance. On the 4th day, analyze the safe maintenance time periods based on all the images collected in the first 3 days; on the 5th day, analyze the safe maintenance time periods based on all the images collected in the first 4 days; on the 6th day, analyze the safe maintenance time periods based on all the images collected in the first 5 days; on the 7th day, analyze the safe maintenance time periods based on all the images collected in the first 6 days.

[0022] Preferably, the unit time period is 5-10 minutes.

[0023] The present invention has at least the following beneficial effects: The bridge maintenance device provided by the present invention includes multiple water tank components, multiple pump connection components, and multiple spraying components. The water tank components are arranged along the bridge deck extension direction (length direction), which not only plays a role in protecting the guardrail but also provides water volume for the maintenance of the bridge. The multiple spraying components are connected to the multiple water tank components through the multiple pump connection components, automatically planning reasonable maintenance time periods to maintain the bridge. At the same time, the multiple bases arranged in sequence and inserted into each other in the spraying components provide a buffering force when a vehicle hits the guardrail, further playing a role in protecting the guardrail.

[0024] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the bridge maintenance device in one technical solution of the present invention;

[0026] Figure 2 It is a schematic diagram of the spraying position of the bridge maintenance device in another technical solution of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following will further elaborate on the present invention with reference to the drawings, so that those skilled in the art can implement it according to the description in the specification.

[0028] It should be understood that terms such as "having", "comprising", and "including" as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0029] As Figure 1 , 2 shown, the present invention provides a bridge maintenance device, comprising:

[0030] A plurality of water tank assemblies, which are arranged along the extension direction of the bridge deck on both sides of the bridge deck. Each water tank assembly includes a water tank body 3 and a connecting water pipe 6 arranged on the side of the water tank body 3 for communicating between the water tank bodies 3;

[0031] A plurality of pump connection assemblies, which are arranged inside the water tank assemblies. One pump connection assembly is correspondingly arranged inside each water tank assembly. Each pump connection assembly includes a plurality of groups of connection seats 1 inserted and connected to the water tank body 3 and a pump body 2 arranged on the connection seats 1. One interface of the pump body 2 is connected to the bottom of the water tank body 3, and the other interface is connected with a multi-way joint;

[0032] A plurality of spraying assemblies, which are arranged inside the pump connection assemblies. One spraying assembly is correspondingly arranged for a group of pump connection assemblies. Each spraying assembly includes a group of buffer bases 7 inserted and connected to the connection seats 1 and a spraying rod 4 arranged on the top of the buffer bases 7. Sprayers are provided on the spraying rod 4;

[0033] Wherein, the group of buffer bases 7 includes a plurality of buffer bases inserted and connected in sequence, extending from both sides of the bridge deck towards the center direction. The heights of the plurality of buffer bases 7 gradually decrease. Except for the shunt nozzles 8 arranged on the spraying rod 4 at the top of the outermost buffer base, high-pressure nozzles are arranged on the spraying rods 4 at the tops of the remaining buffer bases.

[0034] In the above technical solution, the bridge maintenance device is set as modular. Each module includes a water tank assembly, a pump connection assembly, and a spraying assembly. The connection point between modules is the connecting water pipe 6, that is, the water tank bodies 3 of different modules are interconnected and finally connected to a water source to provide the water volume required for maintenance. The water tank body 3 in each module is connected to the connection seat 1 of the pump connection assembly through an insertion structure, and the plurality of buffer bases of the spraying assembly are connected through an insertion structure to form multiple groups of buffer structures to play a protective role for the guardrails of the bridge. A group of buffer bases 7 includes a plurality of buffer bases with gradually decreasing heights, forming different spraying ranges. High-pressure nozzles are arranged on the high-position buffer bases 7, and shunt nozzles are arranged on the low-position buffer bases 7 to ensure that the entire bridge deck is maintained. At the same time, the bridge maintenance devices on both sides are maintained in zones, effectively avoiding the peak periods in two directions and making full use of the off-peak periods for maintenance.

[0035] In the above technical solution, the assembly method of the bridge maintenance device is as follows: First, connect the water tank body 3 along the bridge extension direction in sequence through the connecting water pipe 6, then install the pump connection assembly sufficiently, and connect one interface of the pump body 2 to the bottom of the water tank body 3; finally, install the spraying assembly so that the other interface of the pump body 2 is connected to the water inlets of multiple spray bars 4 through a multi-way joint.

[0036] As Figure 1 and Figure 2 shown, in one of the technical solutions, socket grooves and spigot protrusions are respectively provided on the corresponding surfaces of the water tank body 3 and the connecting seat 1; socket grooves and spigot protrusions are respectively provided on the corresponding surfaces of the connecting seat 1 and the buffer base 7; socket grooves and spigot protrusions are respectively provided on the corresponding surfaces between the buffer bases 7. Multiple socket and spigot structures form a multiple buffer structure to prevent the guardrail from being damaged by vehicle impact. At the same time, in the face of the possible risk of vehicle impact, the multiple buffer structure can effectively reduce the damage degree of the bridge maintenance device, and the damaged part can be replaced separately without replacing the entire bridge maintenance device.

[0037] In Figure 1 or Figure 2 , in one of the technical solutions, the sum of the interface numbers of all multi-way joints corresponds to the total number of water inlets of the spray bars 4. The interfaces of the multi-way joints are respectively connected to the water inlets of the spray bars, realizing that one water tank body 3 supplies multiple spray bars 4, and the water tank bodies 3 are communicated with each other, effectively reducing the volume of the water tank body 3, reducing the floor area, and basically not affecting the normal passage of vehicles.

[0038] From Figure 1 or Figure 2 it can be seen that in one of the technical solutions, the bridge maintenance device further includes a water tank base 5, which is arranged at the bottom of the water tank body 3, and the water tank base 5 is fixed to the bridge deck by bolts, which is beneficial to increasing the stability of the whole device.

[0039] As Figure 1 and Figure 2 , in one of the technical solutions, a camera is further provided at the top of the spray bar 4, and its imaging range at least covers the spraying range of the nozzles on the spray bar 4. The camera can take images of the bridge deck for analyzing the reasonable maintenance time, and at the same time can monitor the entry of vehicles during maintenance in real time, so as to stop the maintenance in time when vehicles enter the maintenance area.

[0040] Figure 1 Or Figure 2 shown, in one of the technical solutions, the buffer base 7 includes two relatively arranged panels and buffer springs arranged between the two panels. The buffer base 7 itself is a buffer structure, which increases the buffer force and effectively protects the bridge guardrail.

[0041] The present invention further claims a bridge maintenance method for the bridge maintenance device, including:

[0042] Step 1: Cameras on the bridge maintenance devices on both sides of the bridge capture 1-2 bridge deck images per second, and analyze the obtained bridge deck images on both sides respectively to obtain the safe maintenance time periods on both sides; the method for obtaining the safe maintenance time period is as follows:

[0043] First step: Obtain all the bridge deck images collected in the previous 7 days in front of the cameras on both sides respectively. Taking 0:00 as the starting time and 24:00 as the ending time, divide the above 24 hours into multiple unit time periods, and the starting time interval between any two adjacent unit time periods is 1-2 minutes;

[0044] Second step: Analyze the bridge deck images obtained by all the cameras on the same side in each unit time period every day respectively, calculate the non-empty ratio of each unit time period every day, and calculate the average non-empty ratio of the same unit time period within 7 days. The non-empty ratio is the percentage of the bridge deck images containing vehicles in each unit time period every day among all the bridge deck images in the corresponding unit time period;

[0045] Third step: Obtain all the unit time periods with an average non-empty ratio less than 2-5%, merge adjacent unit time periods, and obtain multiple safe maintenance time periods;

[0046] Step 2: Set the maintenance cycle, select the safe maintenance time periods with a safe maintenance time period greater than or equal to 15 minutes to turn on the nozzles for maintenance. If a vehicle appears in the real-time image, stop the maintenance, and the cumulative maintenance time within 24 hours does not exceed 40-80 minutes.

[0047] In the above technical solution, the maintenance method includes analyzing the safe protection time period, setting the maintenance cycle, and selecting the safe protection time period for maintenance. The safe protection time period is determined according to the average non-empty ratio within the unit time period in 7 days, that is, the traffic volume in the safe protection time period is extremely small, and the impact on vehicle traffic is the smallest. Setting the maintenance cycle can be the setting of the cumulative maintenance time, or the setting of the cumulative maintenance time within a specific time period. The setting of the cumulative maintenance time within a specific time period is generally related to the region. Generally speaking, the longer the sunshine duration in the region, the longer the cumulative maintenance time required during the day.

[0048] In one of the technical solutions, in the first 3 days after the equipment is installed, only turn on the cameras without maintenance. On the 4th day, analyze the safe maintenance time period based on all the images collected in the previous 3 days; on the 5th day, analyze the safe maintenance time period based on all the images collected in the previous 4 days; on the 6th day, analyze the safe maintenance time period based on all the images collected in the previous 5 days; on the 7th day, analyze the safe maintenance time period based on all the images collected in the previous 6 days. Since the average non-empty ratio within 7 days cannot be calculated in the first 7 days after the equipment is installed, only calculate according to the existing data.

[0049] In one of the technical solutions, the unit time period is 5 - 10 min.

[0050] Embodiment 1

[0051] The bridge maintenance method is as follows:

[0052] Step 1: Cameras on the bridge maintenance devices on both sides of the bridge capture 2 bridge deck images per second, and analyze the bridge deck images obtained on both sides respectively to obtain the safe maintenance time periods on both sides; the method for obtaining the safe maintenance time period is as follows:

[0053] First step: Obtain all the bridge deck images captured in the previous 7 days in front of the cameras on both sides respectively. Taking 0:00 as the starting time and 24:00 as the ending time, divide the above 24 hours into multiple unit time periods, with an interval of 2 minutes between the starting times of any two adjacent unit time periods; the unit time period is 10 minutes;

[0054] Second step: Analyze the bridge deck images obtained by all the cameras on the same side within each unit time period every day respectively, calculate the non - empty ratio of each unit time period every day, and calculate the average non - empty ratio of the same unit time period within 7 days. The non - empty ratio is the percentage of the bridge deck images containing vehicles in each unit time period every day among all the bridge deck images in the corresponding unit time period.

[0055] Third step: Obtain all the unit time periods with an average non - empty ratio less than 2%, and merge adjacent unit time periods to obtain multiple safe maintenance time periods;

[0056] Step 2: Set the maintenance cycle, select the safe maintenance time periods with a safe maintenance time period greater than or equal to 15 minutes to turn on the nozzles for maintenance. If a vehicle appears in the real - time image, stop the maintenance, and the cumulative maintenance time within 24 hours does not exceed 60 minutes.

[0057] The number of devices and the processing scale described here are used to simplify the description of the present invention. The application, modification, and variation of the bridge maintenance device of the present invention are obvious to those skilled in the art.

[0058] As described above, according to the present invention, the present invention has at least the following beneficial effects: The bridge maintenance device provided by the present invention includes multiple water tank components, multiple pump connection components, and multiple spraying components. The water tank components are arranged along the bridge deck extension direction (length direction), which not only plays a role in protecting the guardrail but also provides water volume for the maintenance of the bridge. The multiple spraying components are connected to the multiple water tank components through the multiple pump connection components, automatically planning reasonable maintenance time periods to maintain the bridge. At the same time, the multiple bases arranged in sequence and connected in an inserting manner in the spraying components provide a buffering force when a vehicle hits the guardrail, further playing a role in protecting the guardrail.

[0059] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those skilled in the art, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrated examples described herein.

Claims

1. A bridge maintenance method, characterized in that, The described bridge maintenance method is based on the following bridge maintenance device, which includes: Multiple water tank assemblies arranged along the bridge deck extension direction on both sides of the bridge deck. Each water tank assembly includes a water tank body and a connecting water pipe provided on the side of the water tank body for communicating between the water tank bodies. Multiple pump connection assemblies provided inside the water tank assemblies. One pump connection assembly is correspondingly provided inside each water tank assembly. Each pump connection assembly includes multiple groups of connecting seats inserted and connected to the water tank body and a pump body provided on the connecting seats. One interface of the pump body is connected to the bottom of the water tank body, and the other interface is connected to a multi-way joint. Multiple spraying assemblies provided inside the pump connection assemblies. One spraying assembly is correspondingly provided for one group of pump connection assemblies. Each spraying assembly includes a group of buffer bases inserted and connected to the connecting seats and a spray bar provided on the top of the buffer bases. Nozzles are provided on the spray bar. Among them, the group of buffer bases includes multiple buffer bases inserted and connected in sequence, extending from both sides of the bridge deck towards the center direction. The heights of the multiple buffer bases gradually decrease. Except for the diversion nozzles provided on the spray bar at the top of the outermost buffer base, high-pressure nozzles are provided on the spray bars at the tops of the remaining buffer bases. A camera is also provided at the top of the spray bar, and its imaging range covers at least the spraying range of the nozzles on the spray bar. The described bridge maintenance method includes: Step 1: The cameras on the bridge maintenance devices on both sides of the bridge capture 1 - 2 bridge deck images per second, and analyze the obtained bridge deck images on both sides respectively to obtain the safe maintenance time periods on both sides. The method for obtaining the safe maintenance time period is as follows: The first step: Respectively obtain all the bridge deck images collected in the previous 7 days in front of the cameras on both sides. Taking 0:00 as the starting time and 24:00 as the ending time, divide 24 hours into multiple unit time periods, and the starting time interval between any two adjacent unit time periods is 1 - 2 minutes. The second step: Respectively analyze the bridge deck images obtained by all the cameras on the same side in each unit time period every day, calculate the non-empty ratio in each unit time period every day, and calculate the average non-empty ratio in the same unit time period within 7 days. The non-empty ratio is the percentage of the bridge deck images containing vehicles in each unit time period every day among all the bridge deck images in the corresponding unit time period. The third step: Obtain all the unit time periods with an average non-empty ratio less than 2 - 5%, and merge the adjacent unit time periods to obtain multiple safe maintenance time periods. Step 2: Set the maintenance cycle, select the safe maintenance time periods with a safe maintenance time period greater than or equal to 15 minutes to turn on the nozzles for maintenance. If a vehicle appears in the real-time image, stop the maintenance, and the cumulative maintenance time within 24 hours does not exceed 40 - 80 minutes.

2. The bridge maintenance method according to claim 1, characterized in that, Socket grooves and socket protrusions are respectively provided on the corresponding surfaces of the water tank body and the connecting seat; socket grooves and socket protrusions are respectively provided on the corresponding surfaces of the connecting seat and the buffer base; socket grooves and socket protrusions are respectively provided on the corresponding surfaces between the buffer bases.

3. The bridge maintenance method according to claim 2, wherein The total number of interfaces of all the multi-way joints corresponds to the total number of water inlets of the spray bar, and the interfaces of the multi-way joints are respectively connected to the water inlets of the spray bar.

4. The bridge maintenance method according to claim 3, characterized in that, It also includes a water tank base provided at the bottom of the water tank body.

5. The bridge maintenance method according to claim 4, characterized in that, The buffer base includes two relatively arranged panels and buffer springs arranged between the two panels.

6. The bridge maintenance method according to claim 5, characterized in that, After the equipment is installed, only the camera is turned on in the first 3 days without maintenance. On the 4th day, based on all the images collected in the first 3 days, the safe maintenance time period is analyzed; on the 5th day, based on all the images collected in the first 4 days, the safe maintenance time period is analyzed; on the 6th day, based on all the images collected in the first 5 days, the safe maintenance time period is analyzed; on the 7th day, based on all the images collected in the first 6 days, the safe maintenance time period is analyzed.

7. The bridge maintenance method according to claim 6, characterized in that, The unit time period is 5 to 10 minutes.

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