Automatically rising bridge column light

Abstract

The utility model provides a kind of automatic lifting bridge column lamp, including track and lifting equipment, track is arranged along bridge column height direction, multiple bridge column lamp assemblies are set on track, bridge column lamp assembly includes lamp holder and bridge column lamp on lamp holder, lamp holder is slidably arranged on track, lifting equipment is close to track top, lifting equipment is connected with the highest bridge column lamp assembly by lifting rope, two adjacent bridge column lamp assemblies are connected by lifting rope, the top of track passes through horizontal maintenance platform, the distance between the top of track and horizontal maintenance platform is not less than the spacing of the highest bridge column lamp assembly and the lowest bridge column lamp assembly, so that all bridge column lamp assemblies can be lifted to horizontal maintenance platform by lifting equipment for maintenance.The utility model changes the past "person finds lamp" into "lamp finds person" mode, bridge column lamp can automatically approach or leave horizontal maintenance passage, maintenance personnel can directly carry out maintenance work on horizontal maintenance passage, greatly reduce labor intensity, also conducive to operation safety.

Description

Technical Field

[0001] This utility model relates to the field of bridge pillar lighting technology, specifically to an automatic lifting bridge pillar light. Background Technology

[0002] When constructing structures spanning, blocking, or adjacent to navigable rivers, navigation aids must be built simultaneously and put into use at the same time as the structures. Bridges spanning rivers should be equipped with culvert markers and pier lights to indicate the navigation route and piers to vessels navigating the bridge area. According to relevant regulations, pier lights should be installed on the ship-facing faces of the piers on both sides of the navigable bridge opening, generally 2-4 lights vertically installed. The lowest light should be 2-3 meters above the highest navigable water level designed for the bridge, and the vertical spacing between lights is generally greater than 1 meter. Considering the convenience of pier light installation and routine maintenance, maintenance access channels are usually installed on the piers. The 2-4 vertically installed navigation light holders are welded to the outside of the maintenance access channel, facing the direction of oncoming vessels. Therefore, a long steel-framed maintenance access channel often hangs on the piers on both sides of the navigable bridge opening of a cross-river bridge. The pier light maintenance access channel is attached to the pier and is generally a cantilever structure. Due to factors such as pier structure and aesthetics, space is limited, and the cross-section generally does not exceed 1 square meter.

[0003] With the development of water transport, the trend towards larger ships is evident, and bridge spans and clearance heights are constantly reaching new highs. Consequently, the height of bridge pier light maintenance access channels is also constantly increasing, with vertical elevation differences reaching 50-60 meters, equivalent to 18-20 stories. Figure 1 As shown, a passageway typically includes one vertical passage. Based on a step spacing of 0.25m, there are over 200 steps. Figure 2 As shown, bridge pillar light maintenance workers need to navigate the winding path from the bridge deck and then climb a high-altitude ladder to the light fixture. This is a physically and mentally demanding task with high labor intensity and safety risks, posing a severe test to the maintenance personnel's mental and physical abilities. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic lifting bridge pillar light, which changes the previous "person finds the light" mode to "light finds the person". The bridge pillar light can automatically approach or move away from the horizontal maintenance passage, allowing maintenance personnel to carry out maintenance work directly on the horizontal maintenance passage, greatly reducing labor intensity and improving work safety.

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic lifting bridge pillar light, including a track and a lifting device. The track is arranged along the height direction of the bridge pillar, and multiple bridge pillar light assemblies are set on the track. Each bridge pillar light assembly includes a lamp holder and a bridge pillar light on the lamp holder. The lamp holder is slidably mounted on the track. The lifting device is located near the top of the track and is connected to the highest bridge pillar light assembly by a lifting rope. Adjacent bridge pillar light assemblies are connected by lifting ropes. The top of the track passes through a horizontal maintenance platform. The distance between the top of the track and the horizontal maintenance platform is not less than the distance between the highest and lowest bridge pillar light assemblies, so that all bridge pillar light assemblies can be lifted to the horizontal maintenance platform for maintenance by the lifting device.

[0006] In some embodiments, a magnetic attraction limiting mechanism is provided on one side of the track. The magnetic attraction limiting mechanism includes a limiting seat and a stop. The stop is slidably disposed on the limiting seat. The sliding direction of the stop is perpendicular to the track. The stop can limit or cancel the limiting of the bridge pillar light assembly according to the magnetic attraction.

[0007] In some embodiments, an electromagnet is provided on the stop, and the electromagnet changes the direction of the magnetic field by changing the direction of the current, thereby attracting or repelling the track, so as to limit or cancel the stop on the bridge pillar light assembly.

[0008] In some embodiments, an electromagnet is provided at the end of the limiting seat away from the track, and a permanent magnet is provided on the side of the stop member close to the electromagnet. The electromagnet changes its magnetism by changing the direction of the current, thereby attracting or repelling the stop member, so as to limit or cancel the limit of the bridge pillar light assembly.

[0009] In some embodiments, a spring and an electromagnet are provided at the end of the limiting seat away from the track, a permanent magnet is provided on the side of the stop member close to the electromagnet, the spring is connected to the stop member, the spring is used to push the stop member toward the track, so that the stop member limits the bridge pillar light assembly, and the electromagnet is used to attract the stop member after being energized, so that the stop member cancels the limitation on the bridge pillar light assembly.

[0010] In some embodiments, the stop includes a stop seat and a baffle plate. The stop seat is slidably disposed on a limiting seat, and an electromagnet or permanent magnet is disposed on the stop seat. One end of the baffle plate extends toward the track.

[0011] In some embodiments, a controller and a distance sensor are included. The distance sensor is positioned at the working position of the lowest bridge pillar light assembly. Each bridge pillar light assembly corresponds to a magnetic limiting mechanism. The controller is used to control all magnetic limiting mechanisms to limit the bridge pillar light assembly based on the signal detected by the distance sensor.

[0012] In some embodiments, the track has a C-shaped cross-section, a mounting base is provided on one side of the lamp holder, a roller is rotatably mounted on the mounting base, and the mounting base is located within the C-shaped structure of the track.

[0013] In some embodiments, the track is fixed to the bridge pier by rebar or embedded parts.

[0014] In some embodiments, the rebar anchor is a chemical bolt.

[0015] The beneficial effects of this utility model are as follows: 1. This utility model changes the past "person finds the light" mode to "light finds the person" mode. The bridge pillar light can automatically approach or leave the horizontal maintenance passage, and maintenance personnel can directly carry out maintenance work on the horizontal maintenance passage, which greatly reduces labor intensity and is also conducive to work safety.

[0016] 2. This utility model replaces the traditional steel frame with a track, and the bridge pillar lights are slidably installed on the track. The bridge pillar lights can be lifted to the horizontal maintenance passage for maintenance using the lifting device at the top. In addition, by extending the track upward to a sufficient distance, that is, the distance between the top of the track and the horizontal maintenance platform is not less than the distance between the highest bridge pillar light assembly and the lowest bridge pillar light assembly, the lowest bridge pillar light assembly can also be lifted to the horizontal maintenance platform for maintenance by the lifting device.

[0017] 3. By setting a magnetic limiting mechanism, this utility model allows the bridge pillar light to be restricted by the magnetic limiting mechanism when it is not under maintenance, while not affecting the lifting of the bridge pillar light during maintenance. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of maintenance access for traditional steel frame bridge columns, etc. Figure 2 A schematic diagram showing the installation of maintenance access channels on traditional steel frame bridge piers; Figure 3 This is an elevation view of the automatic lifting bridge pillar light of this utility model; Figure 4 This is a schematic diagram showing the fit between the bridge pillar light assembly and the track of this utility model; Figure 5 This is a schematic diagram of the magnetic attraction limiting mechanism of this utility model.

[0019] Reference numerals: 1. Track; 2. Lifting equipment; 3. Bridge pillar light assembly; 31. Lamp holder; 311. Roller; 32. Bridge pillar light; 4. Lifting rope; 5. Magnetic limit mechanism; 51. Limit seat; 52. Stop; 53. Electromagnet; 6. Distance sensor; 7. Rebar assembly; 8. Horizontal maintenance platform. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] like Figure 3 As shown, this utility model provides an automatic lifting bridge pillar light, including a track 1 and a lifting device 2. Two tracks 1 are arranged in parallel along the height of the bridge pillar. The tracks 1 are installed on the outer side of the bridge pillar and attached thereto. Multiple bridge pillar light assemblies 3 are installed on the tracks 1. Each bridge pillar light assembly 3 includes a lamp holder 31 and a bridge pillar light 32 on the lamp holder 31. The lamp holder 31 is slidably mounted on the track 1. The lifting device 2 is located near the top of the track 1 and is connected to the highest bridge pillar light assembly 3 via a lifting rope 4. Adjacent bridge pillar light assemblies 3 are also connected via lifting ropes 4. The top of the track 1 passes through a horizontal maintenance platform 8. The distance between the top of the track 1 and the horizontal maintenance platform 8 is not less than the distance between the highest and lowest bridge pillar light assembly 3, so that all bridge pillar light assemblies 3 can be lifted to the horizontal maintenance platform 8 for maintenance via the lifting device 2. The lifting device 2 is an electric winch.

[0022] Understandably, this invention, by opening an opening in the horizontal maintenance platform 8 and having the track 1 pass through it, allows the bridge pillar lights 32 to be positioned below the platform 8 during normal operation. When maintenance or repair is required, the lifting device 2 can be used to lift the bridge pillar lights 32 to the plane of the platform 8, enabling workers to inspect and maintain them. Since the distance between the top of the track 1 and the platform 8 is not less than the distance between the highest and lowest bridge pillar light components 3, even the lowest bridge pillar light 32 can be lifted to the platform 8 by the lifting device 2, thus enabling the inspection and maintenance of all bridge pillar lights 32. This invention changes the previous "person finding the light" to a "light finding the person" model, significantly reducing labor intensity and improving operational safety.

[0023] In some embodiments, the track 1 is fixed to the bridge column by a rebar 7 or an embedded part.

[0024] like Figure 3 As shown, the track 1 of this utility model is fixed to the bridge pier by the anchoring component 7. The anchoring component 7 uses chemical anchors, which are inserted after drilling and cleaning holes in the bridge pier. This method provides a tighter connection, causes less damage to the main bridge structure, and is less prone to falling off, making it suitable as an anchoring method for ancillary structures added later to bridges. For newly built bridges, the track 1 can be installed using pre-embedded parts.

[0025] like Figure 4 , 5As shown, in some embodiments, a magnetic attraction limiting mechanism 5 is provided on one side of track 1, that is, a magnetic attraction limiting mechanism 5 is provided on the opposite side of the two tracks 1. The magnetic attraction limiting mechanism 5 includes a limiting seat 51 and a stop 52. A slide rail or slide groove is provided on the limiting seat 51. The stop 52 is slidably disposed on the limiting seat 51 through the slide rail or slide groove. The sliding direction of the stop 52 is perpendicular to the track 1, that is, the slide rail or slide groove is arranged perpendicular to the track 1. The stop 52 can limit or cancel the limiting of the bridge pillar light assembly 3 according to the magnetic attraction. The stop 52 includes a stop seat and a baffle. The stop seat is slidably disposed on the limiting seat 51. An electromagnet 53 or a permanent magnet is provided on the stop seat. One end of the baffle extends toward the track 1.

[0026] Understandably, when the bridge pillar light 32 is working normally, the stop 52 limits and supports the bridge pillar light assembly 3, and the lifting device is not under stress. When the bridge pillar light 32 needs maintenance, the lifting device lifts the bridge pillar light assembly 3, and the stop 52 slides along the limiting seat 51 under the action of magnetic force, releasing the limitation on the bridge pillar light assembly 3. There are several ways to control the stop 52 using magnetic force: In some embodiments, such as Figure 5 As shown, an electromagnet 53 is provided at the end of the limiting seat 51 away from the track 1, and a permanent magnet is provided on the side of the stop 52 close to the electromagnet 53. The permanent magnet can be mounted on the stop 52 with a plastic base to reduce the magnetic attraction between the permanent magnet and the track 1. The electromagnet 53 changes its magnetism by changing the direction of the current, thereby attracting or repelling the permanent magnet on the stop 52, so as to limit or cancel the limit of the bridge column lamp assembly 3 by the stop 52.

[0027] Understandably, when the bridge pillar light 32 is working normally, the electromagnet 53 repels the permanent magnet, causing the stop 52 to be tightly pressed against the track 1 to limit and support the bridge pillar light assembly 3. When the bridge pillar light 32 needs maintenance, the current in the electromagnet 53 changes direction, such as... Figure 5 As shown, the electromagnet 53 attracts the permanent magnet, causing the stop 52 to move away from the track 1, thus preventing the stop 52 from affecting the upward lifting of the bridge pillar light 32.

[0028] Changing the magnetic direction of electromagnet 53 by changing the direction of current is a conventional technique. For example, a double-pole double-throw switch can be used, with the two ends of the electromagnet 53 coil connected to the two middle contacts of the switch, and the positive and negative terminals of the power supply connected to the two sets of outer contacts of the switch. Different switch directions result in different current directions, and thus different magnetic field directions for electromagnet 53. Alternatively, an H-bridge circuit can be used. An H-bridge consists of four electronic switches (usually transistors or MOSFETs) arranged in an "H" shape, with the electromagnet 53 coil connected to the middle bridge arm, which can also achieve the change of the magnetic direction of electromagnet 53.

[0029] like Figure 5As shown, in some embodiments, a controller and a distance sensor 6 are also included. The controller is a PLC controller, and the distance sensor 6 is set at the working position of the lowest bridge pillar light assembly 3. Each bridge pillar light assembly 3 corresponds to a magnetic attraction limiting mechanism 5. The controller is used to control all magnetic attraction limiting mechanisms 5 to limit the bridge pillar light assembly 3 according to the signal detected by the distance sensor 6.

[0030] Understandably, the distance sensor 6 can be set to send signals at a distance of 0.5m. When the bridge pillar light 32 is working normally, the distance sensor 6 detects the bridge pillar light assembly 3, and the electromagnet 53 repels the permanent magnet on the stop 52. When the bridge pillar light 32 needs maintenance, after the bridge pillar light assembly 3 is raised more than 0.5m, the distance sensor 6 can no longer detect the bridge pillar light assembly 3. The controller controls the magnetic direction of the electromagnet 53 to reverse, and the electromagnet 53 attracts the permanent magnet.

[0031] In addition to the above methods, the following structure can also be used to control the stop 52: a spring and an electromagnet 53 are installed at the end of the limiting seat 51 away from the track 1. The spring is made of a non-magnetic material. A permanent magnet is installed on the side of the stop 52 near the electromagnet 53. The spring is connected to the stop 52. The spring is used to push the stop 52 towards the track 1, so that the stop 52 limits the bridge pillar light assembly 3. The electromagnet 53 is used to attract the stop 52 after being energized, so that the stop 52 releases the limit on the bridge pillar light assembly 3. One or more springs can be provided. When only one spring is provided, it is sleeved around the electromagnet. When multiple springs are provided, they are evenly arranged around the electromagnet 53. The springs are made of a non-magnetic metal material.

[0032] Understandably, when the bridge pillar light 32 is working normally, the electromagnet 53 is not energized. The stop 52, under the action of the spring, adheres tightly to the track 1, limiting and supporting the bridge pillar light assembly 3. When the bridge pillar light 32 needs maintenance, the electromagnet 53 is energized, attracting the permanent magnet and causing the stop 52 to move away from the track 1, preventing it from interfering with the upward-lifting bridge pillar light 32. This method reduces energy consumption, requiring only the electromagnet 53 to be energized during maintenance.

[0033] In addition to the above methods, the following structure can also be used to control the stop 52: an electromagnet 53 is installed on the stop 52. The electromagnet 53 changes the direction of the magnetic field by changing the direction of the current, thereby attracting or repelling the rail 1, so as to limit or cancel the stop 52 on the bridge pillar lamp assembly 3. That is, the stop 52 slides on the limiting seat 51 directly through the magnetic attraction of the stop 52 itself and the attraction or repulsion of the rail 1.

[0034] like Figure 4 As shown, in some embodiments, the track 1 has a C-shaped cross-section, and a mounting seat is provided on one side of the lamp holder 31. A roller 311 is rotatably mounted on the mounting seat. The mounting seat is located within the C-shaped structure of the track 1, so that the lamp holder 31 can only move along the track 1.

[0035] This utility model changes the past method of "people finding lights" to "lights finding people", and establishes an innovative concept that allows the bridge pillar light 32 to "take an elevator" to the maintenance personnel, instead of the traditional method of manual high-altitude water operations to climb to the bridge pillar light 32. It proposes a simplified vertical channel structure and improves the automation level of bridge pillar light 32 maintenance.

[0036] The solution of this utility model is compared with the traditional solution: Taking a 60m vertical passage as an example, if the structure of this utility model is adopted, with 32 bridge pillar lights spaced 2m apart and 4 bridge pillar lights of 32 meters each, the slide rail length is 66m, requiring a total of 132m of slide rail, 61 distance sensors, 8 magnetic limit clips, approximately 150m of cable, 1 set of electric winch (including drum and wire rope), and 760 rebar pieces. Based on the market price of equipment and materials and previous project experience, the construction cost is approximately 126,000 yuan, as shown in the table below: The main difference between the traditional maintenance access road and this utility model lies in the size of the steel structure. First, the box girder steel structure weighs about eight times that of this utility model, increasing costs. Second, the reinforcing bars are stronger and denser, and the number of drilling points is at least 1.5 times that of this utility model. Third, the box girder steel structure needs to be prefabricated in the factory, transported in sections, and hoisted to the site in sections, resulting in higher construction costs and labor costs. According to the cost of a similar project completed by the project team, the cost of a traditional vertical maintenance access road of about 60m in length is 165,000 yuan. Based on the calculation of four vertical maintenance access roads per main navigation hole, this utility model can save 164,000 yuan in project costs and provide convenience for subsequent maintenance.

[0037] The following is a comparison between this utility model and traditional maintenance access solutions: The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An automatic lifting bridge pillar light, characterized in that: The system includes a track (1) and a lifting device (2). The track (1) is arranged along the height of the bridge pillars. Multiple bridge pillar light assemblies (3) are installed on the track (1). Each bridge pillar light assembly (3) includes a lamp holder (31) and a bridge pillar light (32) on the lamp holder (31). The lamp holder (31) is slidably mounted on the track (1). The lifting device (2) is located near the top of the track (1). The lifting device (2) is connected to the highest bridge pillar light assembly (3) by a lifting rope (4). Two adjacent bridge pillar light assemblies (3) are connected by a lifting rope (4). The top of the track (1) passes through a horizontal maintenance platform (8). The distance between the top of the track (1) and the horizontal maintenance platform (8) is not less than the distance between the highest bridge pillar light assembly (3) and the lowest bridge pillar light assembly (3), so that all bridge pillar light assemblies (3) can be lifted to the horizontal maintenance platform (8) by the lifting device (2) for maintenance.

2. The automatic lifting bridge pillar light according to claim 1, characterized in that: A magnetic attraction limiting mechanism (5) is provided on one side of the track (1). The magnetic attraction limiting mechanism (5) includes a limiting seat (51) and a stop (52). The stop (52) is slidably disposed on the limiting seat (51). The sliding direction of the stop (52) is perpendicular to the track (1). The stop (52) can limit or cancel the limit on the bridge pillar light assembly (3) according to the magnetic attraction.

3. The automatic lifting bridge pillar light according to claim 2, characterized in that: An electromagnet (53) is provided on the stop (52). The electromagnet (53) changes the direction of the magnetic field by changing the direction of the current, thereby attracting or repelling the track (1) and realizing the limit or cancellation of the stop (52) on the bridge pillar lamp assembly (3).

4. The automatic lifting bridge pillar light according to claim 2, characterized in that: An electromagnet (53) is provided at the end of the limiting seat (51) away from the track (1), and a permanent magnet is provided on the side of the stop (52) close to the electromagnet (53). The electromagnet (53) changes its magnetism by changing the direction of the current, thereby attracting or repelling the stop (52) and realizing the limit or cancellation of the stop (52) on the bridge pillar lamp assembly (3).

5. The automatic lifting bridge pillar light according to claim 2, characterized in that: The limiting seat (51) is provided with a spring and an electromagnet (53) at the end away from the track (1). The stop (52) is provided with a permanent magnet on the side near the electromagnet (53). The spring is connected to the stop (52). The spring is used to push the stop (52) toward the track (1) so that the stop (52) limits the bridge pillar light assembly (3). The electromagnet (53) is used to attract the stop (52) after being energized, so that the stop (52) cancels the limit on the bridge pillar light assembly (3).

6. The automatic lifting bridge pillar light according to any one of claims 2 to 5, characterized in that: The stop (52) includes a stop seat and a baffle. The stop seat is slidably disposed on the limiting seat (51). An electromagnet (53) or a permanent magnet is disposed on the stop seat. One end of the baffle extends toward the track (1).

7. The automatic lifting bridge pillar light according to any one of claims 2 to 5, characterized in that: The system includes a controller and a distance sensor (6). The distance sensor (6) is set at the working position of the lowest bridge pillar light assembly (3). Each bridge pillar light assembly (3) corresponds to a magnetic attraction limiting mechanism (5). The controller is used to control all magnetic attraction limiting mechanisms (5) to limit the bridge pillar light assembly (3) according to the signal detected by the distance sensor (6) of the bridge pillar light assembly (3).

8. The automatic lifting bridge pillar light according to any one of claims 1 to 5, characterized in that: The track (1) has a C-shaped cross section. A mounting seat is provided on one side of the lamp holder (31). A roller (311) is rotatably mounted on the mounting seat. The mounting seat is located inside the C-shaped structure of the track (1).

9. The automatic lifting bridge pillar light according to any one of claims 1 to 5, characterized in that: The track (1) is fixed to the bridge column by a rebar (7) or a pre-embedded part.

10. The automatic lifting bridge pillar light according to claim 9, characterized in that: The rebar (7) uses chemical bolts.

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