A safety interlocking system suitable for urban railway vehicle maintenance depot

Abstract

The present invention discloses a safety interlocking system applicable to a vehicle maintenance depot of a metropolitan railway, and belongs to the technical field of transportation maintenance of a metropolitan railway. By setting a power-on / off component, a door control component, and a signal light guide component corresponding to each maintenance line; by utilizing the combination of corresponding components in each component, the power-on / off control of the contact network and the switching and display of various maintenance states can be accurately completed, and the reliable isolation of the climbing platform and the boarding platform can be realized when the contact network is energized. The safety interlocking system applicable to the vehicle maintenance depot of a metropolitan railway of the present invention has a simple structure and arrangement form, can accurately realize the power-on / off control of the contact network, and can simultaneously realize the switching and display of various maintenance states, and realize the isolation of the climbing platform and the boarding platform when the contact network is energized, so as to avoid the occurrence of safety accidents, ensure the safety and reliability of the maintenance personnel's climbing operation, and improve the efficiency and quality of vehicle top maintenance, and has good application prospects and promotion value.

Description

Technical Field

[0001] The invention belongs to the technical field of urban railroad traffic maintenance, and in particular relates to a safety interlocking system suitable for an urban railroad vehicle maintenance depot. Background Art

[0002] With the continuous acceleration of my country's urbanization process and the increasing frequency of connections between cities, traditional rail transit has become increasingly unable to meet the needs of inter-city travel. For this reason, urban rail has come into being. As a new type of rail transit, it generally has the characteristics of "high density, small formation, and bus-like" transportation organization, and most urban rail vehicles use AC current, which is significantly different from traditional subways and high-speed railways. For this reason, the maintenance system for traditional rail transit (subway, high-speed rail) is often not directly applicable to urban rail vehicles, which also puts forward new requirements for the operation and maintenance of urban rail vehicles.

[0003] During the maintenance process of urban rail vehicles, the efficiency of maintenance is a key factor to consider, which is related to whether the urban rail vehicle group can run safely and on time. With the continuous promotion of urban rail, the demand for vehicle depot maintenance warehouse is also increasing, and new requirements are put forward for the design of maintenance warehouse.

[0004] At present, the maintenance of urban rail vehicles mostly uses ground fixed work platforms. The platforms and protective nets are relatively bulky and difficult to disassemble, occupying the ground maintenance work space, resulting in low maintenance efficiency. Moreover, for traditional maintenance depots, maintenance personnel can only enter the driver's cab and passenger compartment from one side of the vehicle group to carry out maintenance operations. In addition, the maintenance personnel of urban EMUs enter the driver's cab and passenger compartment for maintenance operations relatively frequently, resulting in a further reduction in maintenance efficiency. At the same time, the existing maintenance system has poor compatibility with vehicle top maintenance, making it difficult for the quality of roof maintenance to meet the requirements of actual operation. In addition, when performing vehicle top operations, the existing maintenance system is difficult to provide sufficient protection, and there is a risk of falling from the roof and electric shock, causing unnecessary property losses and casualties. Summary of the invention

[0005] In response to one or more of the above-mentioned defects or improvement needs in the prior art, the present invention provides a safety interlocking system suitable for the vehicle maintenance depot of the urban railway, which can realize effective protection during the top-down maintenance of the urban railway vehicles, ensure accurate monitoring and feedback of the power-on and power-off status of the contact network, and ensure the safety and reliability of the vehicle top-down maintenance.

[0006] To achieve the above-mentioned object, the present invention provides a safety interlocking system suitable for a vehicle maintenance depot of an urban railway, which corresponds to a maintenance line in the maintenance depot, and at least one side of the maintenance line is provided with a boarding platform and a top platform;

[0007] The safety interlock system includes a power on / off component, a door access control component and a signal light guide component which are communicatively connected to each other;

[0008] The power on / off assembly includes an isolating switch and a grounding device; the isolating switch is matched and connected with the contact network of the maintenance line to realize the power on and off of the contact network; the grounding device is set corresponding to the roof operation area and is used for the residual power release and reliable grounding of the roof operation area after the contact network is powered off;

[0009] The access control component includes an access control; the access control is arranged between the boarding platform and the climbing platform, and is used to achieve connection or separation between the two platforms;

[0010] The signal light guiding assembly includes an external signal light and a vehicle signal light; the external signal light is arranged corresponding to the isolating switch and is used to display the disconnection state and the connection state of the isolating switch; the vehicle signal light is arranged at the end of the maintenance line and is used to display whether the vehicle can enter or leave the warehouse;

[0011] The isolating switch is interlocked with the access control, the signal light outside the warehouse, and the vehicle signal light, so that when the isolating switch is in a closed state, the access control is closed synchronously, the signal light outside the warehouse indicates that the contact network is energized, and the vehicle signal light indicates that the vehicle is not allowed to enter the warehouse on the maintenance line.

[0012] As a further improvement of the present invention, the access control component further includes an access control indicator light; the access control indicator light is interlocked with the isolation switch to display the opening and closing status of the access control in real time.

[0013] As a further improvement of the present invention, an uninterruptible power supply is provided corresponding to the access control component, and the uninterruptible power supply is electrically connected to the access control component via a connecting cable for providing uninterruptible power supply to the access control component.

[0014] As a further improvement of the present invention, it also includes a safety warning component;

[0015] The safety warning component includes one or more of a flashing light, a display screen, and a broadcast sound column;

[0016] The flashing light is arranged on the climbing platform, and is interlocked with the isolating switch, and is used to flash for warning before the isolating switch is closed and powered on; the display screen is arranged on the climbing platform and / or the boarding platform, and is used to display whether the contact network is powered on; the broadcasting sound column is arranged on the single-side maintenance platform and / or the double-side maintenance platform, and is used for prompting before and after the contact network is powered on.

[0017] As a further improvement of the present invention, it also includes a video monitoring component;

[0018] The video monitoring component includes a first camera arranged corresponding to the climbing platform and / or the boarding platform, and a second camera arranged corresponding to the vehicle roof inspection area; the first camera and the second camera are respectively arranged in plurality at intervals.

[0019] As a further improvement of the present invention, the first camera is a gun-type camera, and / or the second camera is a dome-type camera.

[0020] As a further improvement of the present invention, a sub-control cabinet is also provided; the sub-control cabinet is integrated with a PLC controller corresponding to each component in the power on / off component, the access control component and the signal light guide component, for realizing switching control of the corresponding status of each component.

[0021] As a further improvement of the present invention, a control box is further provided corresponding to the grounding device, which is used to realize the switching of the working state of the grounding device and the release of residual electricity in the roof maintenance operation area.

[0022] As a further improvement of the present invention, a backup power supply is also provided corresponding to the access control component; the backup power supply is electrically connected to the access control component via a connecting cable, and can start working synchronously when the uninterruptible power supply stops working.

[0023] As a further improvement of the present invention, the flip ferry on the corresponding maintenance platform is also provided with an in-place indicator light so that maintenance personnel can observe whether the flip ferry is flipped or retracted into place.

[0024] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0025] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

[0026] (1) The safety interlocking system of the present invention, which is applicable to the vehicle maintenance depot of the urban railway, is provided with a power-on / off assembly, a door control assembly and a signal light guide assembly corresponding to each maintenance line; by using the corresponding arrangement of the isolating switch and the grounding device in the power-on / off assembly, the power-on / off of the overhead contact network on the maintenance line and the residual power release and reliable grounding of the overhead contact network power-off vehicle maintenance operation area can be respectively accurately and quickly realized; at the same time, by using the corresponding arrangement of the door control assembly and the signal light guide assembly, the top platform and the boarding platform can be separated when the overhead contact network is powered on, and the power-on / off status of the overhead contact network can be displayed in real time; the safety of the vehicle during the top maintenance operation is ensured, the occurrence of accidents is avoided, and the life safety of the maintenance personnel is guaranteed;

[0027] (2) The safety interlocking system of the present invention is applicable to the vehicle maintenance depot of the urban railway. Through the interlocking arrangement of the isolating switch and the access control, access control indicator light, signal light outside the depot, vehicle signal light, strobe light, display screen, access control indicator light and other components, the isolating switch can provide sufficient warnings to the maintenance personnel in the maintenance area before and after the closing connection, and ensure the reliable separation between the boarding platform and the top platform after the contact network is energized, fully guarantee the safety and reliability of the work in each area of ​​the maintenance platform, and realize the synchronous safety interlocking of the maintenance depot;

[0028] (3) The safety interlocking system of the present invention, which is applicable to the maintenance depot of the urban railway vehicle, can display the working status of the maintenance platform in real time through the corresponding settings of the safety warning component and the video monitoring component, provide maintenance personnel with sufficient basis for determining the maintenance status, and monitor the working status of the maintenance area in real time, thereby ensuring the working stability of the maintenance platform and the maintenance quality of the roof maintenance area;

[0029] (4) The safety interlocking system of the present invention, which is suitable for the vehicle maintenance depot of the urban railway, has a simple structure and layout, can accurately realize the power on and off control of the contact network, and can simultaneously realize the switching and display of various maintenance states, and realize the isolation of the climbing platform and the boarding platform when the contact network is energized, thereby avoiding the occurrence of safety accidents, ensuring the safety and reliability of the maintenance personnel's climbing operations, and improving the efficiency and quality of vehicle top maintenance. It has good application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a cross-sectional view of a boarding operation maintenance warehouse applicable to urban rail vehicles according to an embodiment of the present invention;

[0031] Figure 2 It is a plan layout diagram of a boarding operation maintenance warehouse applicable to urban rail vehicles in an embodiment of the present invention;

[0032] Figure 3 Schematic diagram of a single-side maintenance platform of a vehicle boarding maintenance warehouse in an embodiment of the present invention;

[0033] Figure 4 Schematic diagram of the double-sided maintenance platform of the vehicle boarding operation maintenance warehouse in an embodiment of the present invention;

[0034] Figure 5 Schematic diagram of a climbing maintenance auxiliary mechanism of a vehicle operation maintenance warehouse in an embodiment of the present invention;

[0035] Figure 6 1 is a schematic diagram of the connection of the end of the protective net suspension rod of the climbing maintenance auxiliary mechanism in an embodiment of the present invention;

[0036] Figure 71. It is a schematic diagram of the connection of the end of the protective net boom of the climbing maintenance auxiliary mechanism in an embodiment of the present invention;

[0037] Figure 8 It is a schematic diagram of the end surface layout of a safety interlocking system applicable to a vehicle maintenance depot for an urban railway according to an embodiment of the present invention;

[0038] Fig. 9 It is a schematic diagram of a partial cross-section arrangement of a safety interlocking system applicable to a vehicle maintenance depot for an urban railway according to an embodiment of the present invention;

[0039] Fig.10 It is a schematic diagram of the plan layout of a safety interlocking system applicable to a vehicle maintenance depot for an urban railway in an embodiment of the present invention;

[0040] Fig.11 This is a schematic diagram of the working process of a safety interlocking system applicable to a vehicle maintenance depot for an urban railway according to an embodiment of the present invention;

[0041] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0042] 1. Ground; 2. Ceiling; 3. Support column; 4. Maintenance line; 5. Maintenance pit; 6. Wastewater pipe; 7. Wastewater well;

[0043] 101. Ladder for boarding platform; 102. Second-floor protective railing; 103. Boarding platform;

[0044] 201. Climbing ladder to the top platform; 202. Turning board; 203. Three-layer guardrail; 204. Climbing platform;

[0045] 301, protective net suspension rod; 302, cross beam; 303, fastening bolts; 304, hinge;

[0046] 401, platform hanging rod; 402, first supporting rod; 403, reinforcement rod; 404, second supporting rod; 405, protection net hanging rod;

[0047] 501, signal light outside the warehouse; 502, isolating switch; 503, sub-control cabinet; 504, grounding device control box; 505, vehicle signal light;

[0048] 601, first camera; 602, second camera; 603, display screen; 604, flashing light; 605, access control; 606, access control indicator light; 607, broadcast sound column;

[0049] 701. Connecting cables; 702. Uninterruptible power supply. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0051] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] Example:

[0056] In a preferred embodiment of the present invention, a boarding operation maintenance warehouse suitable for urban rail vehicles is provided. Figure 1 , 2 As shown in , the maintenance depot is provided with a plurality of maintenance lines 4, which can realize simultaneous maintenance of a plurality of groups of urban rail vehicles. Specifically, the plurality of maintenance lines 4 are arranged in parallel and spaced apart, and the extending direction of the maintenance lines 4 is the longitudinal direction of the maintenance depot, and the horizontal direction perpendicular to the longitudinal direction is the transverse direction, that is, the urban rail vehicles are parked in the maintenance depot along the longitudinal direction.

[0057] Furthermore, a ceiling 2 is provided on the top of the maintenance warehouse, and a plurality of horizontal beams 302 extending in the transverse direction are provided at the bottom of the ceiling 2, and a plurality of support columns 3 are provided vertically below the horizontal beams 302; one end of the support column 3 is fixedly supported on the ground 1, and the other end is fixedly connected to the horizontal beam 302. In order to ensure stable support at various positions of the ceiling 2, in actual settings, the support columns 3 are multiple and are spaced apart in the transverse and longitudinal directions of the maintenance warehouse. Of course, in actual settings, a plurality of longitudinal beams extending in the longitudinal direction are also provided at the bottom of the corresponding ceiling 2, which are correspondingly connected to the horizontal beams 302, and a plurality of support columns 3 are provided at the bottom of the longitudinal beams, which can be optimized according to actual needs and will not be elaborated here. Specifically, support columns 3 are provided on both sides of the maintenance warehouse in the transverse direction, and a plurality of support columns 3 on both sides of the maintenance warehouse are spaced apart in the longitudinal direction.

[0058] Furthermore, each maintenance line 4 includes track units arranged in pairs, and the track units include track beams arranged on the ground 1 and tracks arranged on the top of the track beams, and a maintenance pit 5 of a certain depth is opened longitudinally on the ground 1 between the two track units for maintenance personnel to enter and inspect the bottom of the vehicle. In actual settings, a wastewater ditch is opened on one side of the maintenance pit 5 to collect wastewater after vehicle cleaning; at the same time, a wastewater well 7 is arranged corresponding to the wastewater ditch, which is connected to the wastewater ditch through a number of wastewater pipes 6 for centralized treatment or discharge of wastewater. By arranging multiple wastewater pipes 6 at intervals in the longitudinal direction of the wastewater ditch, the accumulation of wastewater in the wastewater ditch can be effectively avoided, the efficiency of wastewater discharge can be improved, and the stability of the wastewater ditch setting can be guaranteed to a certain extent. Once a wastewater pipe 6 is blocked, other wastewater pipes 6 can still discharge wastewater normally. In addition, the wastewater well 7 can be set for a single maintenance line 4, or it can be connected to multiple wastewater ditches at the same time, such as Figure 1 as shown in .

[0059] More specifically, in order to realize the maintenance of the inside and top of the vehicle, a work platform is provided for each maintenance line 4 in the maintenance depot, and the work platform includes a single-side maintenance platform provided corresponding to the two outermost maintenance lines 4 in the transverse direction and a double-side maintenance platform provided between two adjacent maintenance lines 4 in the middle of the maintenance depot. In actual setting, there are several possible setting forms:

[0060] (1) When there is only one maintenance line 4 in the maintenance warehouse, it is only necessary to set up a single-side maintenance platform for the maintenance line 4;

[0061] (2) When two maintenance lines 4 are arranged in parallel in the maintenance depot, a single-side maintenance platform can be arranged on both sides of the two maintenance lines 4 that are away from each other, or a double-side maintenance platform can be arranged between the two maintenance lines 4;

[0062] (3) When there are multiple (greater than 2) maintenance lines 4 arranged in parallel in the maintenance depot, and the number of maintenance lines 4 is an odd number, a single-side maintenance platform can be arranged on one lateral side of the maintenance depot corresponding to one maintenance line 4, and double-side maintenance platforms can be arranged corresponding to the remaining maintenance lines 4;

[0063] (4) When there are multiple maintenance lines 4 (greater than 2) arranged in parallel in the maintenance depot, and the number of maintenance lines 4 is an even number, a single-sided maintenance platform can be set on both lateral sides of the maintenance depot corresponding to the two maintenance lines 4 on both sides, and a double-sided maintenance platform can be set corresponding to the remaining maintenance lines 4.

[0064] Specifically, the single-side maintenance platform in the preferred embodiment is as follows: Figure 1 , 3 As shown in the figure, it includes a boarding platform 103 and a climbing platform 204 arranged at intervals in the vertical direction, which are used for boarding and climbing operations of urban rail vehicles respectively. The boarding platform 103 and the climbing platform 204 extend horizontally in the longitudinal direction respectively, and the extension length of the two in the longitudinal direction preferably corresponds to the longitudinal length of the urban rail vehicle.

[0065] Furthermore, the two platforms in the single-side maintenance platform are provided with platform suspension rods 401, which extend vertically and are arranged at intervals in the longitudinal direction. At the same time, the top of the platform suspension rod 401 is fixedly connected to the crossbeam 302, one side of the lateral side of the top platform 204 is fixed to the middle of the platform suspension rod 401, and the other side extends toward the corresponding maintenance line 4; one side of the lateral side of the boarding platform 103 is fixed to the bottom of the platform suspension rod 401, and the other side extends toward the corresponding maintenance line 4. Through the fixed connection of the two platforms with multiple platform suspension rods 401 in the longitudinal direction, the stable setting of the two platforms can be achieved.

[0066] Preferably, in order to ensure the stability of the two platforms and the platform suspension rods 401, a plurality of first support rods 402 are arranged on the side of each platform suspension rod 401 away from the two platforms. The first support rods 402 are preferably arranged horizontally, with one end connected to the platform suspension rod 401 and the other end connected to the support columns 3 located on both sides of the maintenance depot, so as to ensure the stability of the two platforms and avoid the shaking of the platform suspension rods 401. In actual setting, the first support rods 402 corresponding to one platform suspension rod 401 are two vertically spaced apart, and the two first support rods 402 are respectively connected to the setting positions of the boarding platform 103 and the top platform 204, such as Figure 3 as shown in .

[0067] Furthermore, guardrails are respectively arranged on both sides of the boarding platform 103 and the top platform 204, namely, a second-layer guardrail 102 and a third-layer guardrail 203, to ensure the safety of maintenance personnel when working on the two platforms. In actual settings, due to the setting requirements of the train running limit and the arc-shaped setting form on both sides of the top of the vehicle, a gap of a certain width is formed between the vehicle and the edge of the top platform 204 after the vehicle stops on the maintenance line 4. In view of this, a flip ferry 202 is arranged on the side of the top platform 204 close to the maintenance line 4, which is used to fill the gap between the edge of the top platform 204 and the roof of the vehicle to ensure the safety of maintenance personnel when performing top operations. In a preferred embodiment, a rotating mechanism (such as a servo rotating motor) is arranged corresponding to the flip ferry 202, which is preferably arranged at the end of the top platform 204 or arranged below its end, and one side of the flip ferry 202 is rotatably connected to the rotating mechanism. Through the control of the rotating mechanism, the flip ferry 202 can be converted from a vertical state to a horizontal state. In actual arrangement, the flip ferry 202 may be arranged in sequence in the longitudinal direction for multiple or continuously, and the rotating mechanism provided for the same flip ferry 202 may be one or multiple. In addition, in order to ensure safe boarding from the boarding platform 103, in a preferred embodiment, a flip ferry 202 may be provided on one side of the boarding platform 103 to fill the gap between the boarding platform 103 and the vehicle door.

[0068] Accordingly, a boarding platform ladder 101 is provided between the ground 1 and the boarding platform 103, and a climbing platform ladder 201 is provided between the boarding platform 103 and the climbing platform 204. Figure 2 , 3 As shown in the figure, it is for maintenance personnel to walk up and down.

[0069] Furthermore, a corresponding single-side maintenance platform is provided with a top maintenance auxiliary mechanism, such as Figure 5 As shown in , it is arranged on the side of the maintenance line 4 away from the single-side maintenance platform, as shown in Figure 1As shown in , a protective net is used to prevent maintenance personnel from falling from the other side of the roof. Specifically, the roof maintenance auxiliary mechanism includes a plurality of protective net hanging rods 405 arranged at intervals in the longitudinal direction, which are arranged in the vertical direction, one end of which is fixedly connected to the crossbeam 302, and the other end of which extends downward to one side of the top of the vehicle. At the same time, a rotatable flip ferry 202 is arranged on the side of the protective net hanging rod 405 close to the corresponding maintenance line 4, and its setting form is the same as the setting form of the flip ferry 202 on the side of the boarding platform 103, which will not be repeated here. By setting the flip ferry 202 on the protective net hanging rod 405, the gap between the roof and the protective net hanging rod 405 can be blocked. In actual setting, a protective net is arranged between each flip ferry 202, so that when each flip ferry 202 is rotated to a horizontal state, an auxiliary maintenance platform along the longitudinal direction can be formed, and the auxiliary maintenance platform can just block the gap between the roof and the protective net hanging rod 405. At the same time, a protective net is vertically arranged between each protective net hanging rod 405, so as to form a protective net structure on one side of the vehicle roof.

[0070] Preferably, a protective net hanging rod 301 is arranged on the side of the protective net hanging rod 405 away from the maintenance line 4, one end of which is connected to the crossbeam 302, and the other end is connected to the protective net hanging rod 405. By setting the protective net hanging rod 301, the setting stability of the protective net hanging rod 405 and the protective net can be effectively guaranteed, and the shaking of the protective net hanging rod 405 can be avoided. Figure 5 In actual setting, the connection form between the protective net hanging rod 405 and the crossbeam 302 is preferably as follows: Figure 6 As shown in FIG. 4 , the end of the protective net hanging rod 405 is provided with a flange, and the end flange of the protective net hanging rod 405 is connected and fastened to the crossbeam 302 through a plurality of fastening bolts 303. At the same time, the protective net hanging rod 301 in the preferred embodiment is rotatably connected to the crossbeam 302 through a hinge 304, as shown in FIG. Figure 7 As shown in the figure, the hinge 304 is connected to the crossbeam 302 through a plurality of fastening bolts 303; accordingly, the other end of the protection net suspension rod 301 is rotatably connected to the protection net hanging rod 405.

[0071] In addition, in order to ensure that both sides of each maintenance line 4 can realize boarding operations, a single-side maintenance platform can be set on the other side of the maintenance line 4 where the single-side maintenance platform is set, and the two single-side maintenance platforms can respectively perform boarding operations and top climbing operations, thereby improving the efficiency of maintenance operations. However, it is also possible to only set the boarding platform 103 in one of the single-side maintenance platforms without setting the top climbing platform 204, and the position of the single-side maintenance platform corresponding to the roof operation area is correspondingly provided with a flip board 202 and a protective net.

[0072] Furthermore, the double-sided maintenance platform in the preferred embodiment is as follows Figure 4As shown in , it is arranged between two adjacent maintenance lines 4 and can be used for simultaneous maintenance of two trains of vehicles on the two maintenance lines 4. In actual setting, the double-sided maintenance platform can be regarded as a corresponding combination of two single-sided maintenance platforms arranged away from each other, that is, the two climbing platforms 204 and the two boarding platforms 103 on the double-sided maintenance platform are respectively arranged on the two sides away from each other of the two platform suspension rods 401; obviously, the structure on both sides of the double-sided maintenance platform can refer to the structural description of the aforementioned single-sided maintenance platform, so it will not be repeated here. At the same time, a second support rod 404 is arranged laterally between the two laterally opposite platform suspension rods 401 in the double-sided maintenance platform. In the preferred embodiment, the second support rod 404 is two vertically spaced apart, and the two second support rods 404 are respectively arranged at the setting positions of the boarding platform 103 and the climbing platform 204. Preferably, a reinforcement rod 403 is respectively arranged on the two platform suspension rods 401, one end of which is connected to the platform suspension rod 401, and the other end is connected to the middle part of the second support rod 404, forming a triangular support structure, such as Figure 4 As shown in

[0073] By setting up the double-sided maintenance platforms, two trains of urban rail vehicles can be simultaneously maintained, reducing the setting space of the maintenance platforms, so that as many maintenance lines 4 as possible can be set up in the limited space maintenance depot, thereby improving the efficiency of urban rail vehicle maintenance.

[0074] Furthermore, a climbing maintenance auxiliary mechanism is provided on the side of the two maintenance lines 4 corresponding to the double-sided maintenance platform away from the double-sided maintenance platform, and a suspended protective net is provided on the climbing maintenance auxiliary mechanism to ensure the safety of climbing maintenance on the corresponding vehicle.

[0075] In actual settings, the lengths of each boarding platform 103 and each climbing platform 204 are preferably the same, and are further preferably the same as the column spacing of the support columns 3 on both sides of the maintenance depot in the longitudinal direction. At the same time, it is preferred that a number of cargo transfer platforms be provided on the side away from the maintenance line 4 corresponding to each boarding platform 103, which are used for the transfer and storage of cargo, equipment and maintenance tools on the vehicle. Secondly, the treads of the boarding platform 103 and the climbing platform 204 are preferably made of steel gratings or patterned steel plates. In addition, for the maintenance lines 4 arranged on both sides of the maintenance depot in the horizontal direction, a single-sided maintenance platform is provided on one side, and a climbing maintenance auxiliary mechanism can be provided on the other side, or a single-sided maintenance platform or a double-sided maintenance platform can be provided. In this way, it can be ensured that the vehicles on this maintenance line 4 can achieve boarding and climbing on both sides, thereby further improving the efficiency of maintenance. This can shorten the maintenance time as much as possible for vehicles that need to be repaired urgently.

[0076] Further preferably, each flip ferry 202 has a self-locking function, preferably an electric wind drive, and adopts a PLC centralized and segmented control method to ensure the safety needs of maintenance personnel climbing to the top. At the same time, a flip ferry in place indicator light is set on each climbing platform 204 to facilitate maintenance personnel to observe whether the ferry is flipped or retracted in place. In addition, a safety lock mechanism is set in place for each flip ferry 202 to safely lock the flip ferry 202 in the corresponding position.

[0077] Furthermore, in order to ensure that the above-mentioned maintenance warehouse can operate normally and safely, a safety interlock system is set up for the maintenance warehouse, and its setting form is as follows: Figures 8 to 10 As shown in the figure, it includes a power on / off component, an access control component, a signal light guidance component, and a safety warning component corresponding to each maintenance line 4. The components are electrically connected through a connecting cable 701 arranged in the maintenance warehouse, and the components can work together.

[0078] Specifically, the on-off power component is preferably arranged at the storage end of the corresponding maintenance line 4, which includes an isolating switch 502, a sub-control cabinet 503 and a grounding device control box 504. Among them, the isolating switch 502 is used to realize the on-off of the contact network of the storage vehicle, that is, after the isolating switch 502 is closed, the contact network is energized, and when the isolating switch 502 is disconnected, the contact network is de-energized. In actual settings, the isolating switch 502 can preferably be controlled by manual operation, and can also be preferably remotely controlled by setting an electronic switch. In addition, a grounding device is provided at the storage end of the maintenance warehouse corresponding to the isolating switch 502, and a corresponding control box is provided accordingly. Through the setting and control of the grounding device, the rapid and full release of the residual electricity in the roof maintenance operation area after the isolating switch is powered off and isolated can be effectively realized, and the reliable grounding of the roof maintenance operation area can be ensured, thereby ensuring the safety of the maintenance personnel during the roof maintenance operation.

[0079] Furthermore, the signal light guiding assembly in the preferred embodiment includes an off-depot signal light 501 provided outside the maintenance depot corresponding to the isolating switch 502, which is communicatively connected to the isolating switch 502. When the isolating switch 502 is switched to the corresponding state, the off-depot signal light 501 can also be switched to the corresponding state. For example, the off-depot signal light 501 in the preferred embodiment is a red and green signal indicator light. When the isolating switch 502 is closed (the contact network is energized), the off-depot signal light 501 is displayed as a red light; when the isolating switch 502 is disconnected (the contact network is deenergized), the off-depot signal light 501 is displayed as a green light. At this time, the climbing operation on the top of the vehicle on the maintenance line 4 can be carried out. In addition, no matter what state the off-depot signal light 501 is in, it indicates that the corresponding maintenance line 4 is in a vehicle maintenance state. At this time, other vehicles are no longer towed or driven to the maintenance line 4.

[0080] At the same time, the signal light guiding assembly also includes a vehicle signal light 505 arranged on the end wall of the maintenance warehouse (end of the maintenance line). By switching the state of the vehicle signal light 505, it can be determined whether the vehicles to be repaired outside the warehouse can enter the warehouse, and whether the vehicles on the maintenance line 4 can leave the warehouse. In a preferred embodiment, the vehicle signal light 505 is a red and white double-color signal light. When it displays a red light, vehicles outside the warehouse cannot enter the warehouse, and vehicles inside the warehouse cannot leave the warehouse; when it displays a white light, vehicles outside the warehouse can enter the warehouse, and vehicles inside the warehouse can leave the warehouse.

[0081] In order to ensure the safety of the vehicle when it is on the top for maintenance, a door control component is provided in the preferred embodiment. It includes a door control 605 arranged between the boarding platform 103 and the top platform 204, and a door control indicator light 606 is provided corresponding to the door control 605, so as to display whether the door control 605 can be used for personnel to pass. In the preferred embodiment, the door control indicator light 606 is a red and green indicator light. When it is displayed as "red", it indicates that the isolation switch 502 is in a closed state, and maintenance personnel are prohibited from passing through at this time; on the contrary, when it is displayed as "green", it indicates that the isolation switch 502 is in an open state at this time, and maintenance personnel can pass through the door control 605 and perform top maintenance operations. In addition, in order to ensure the stability of the setting and use of the door control component, an uninterruptible power supply 702 is provided corresponding to it in the preferred embodiment, which is preferably arranged in the dispatching room (DCC dispatching room in the preferred embodiment) to ensure that the door control component is always powered on. Preferably, the corresponding access control component is also provided with a backup power supply, which can automatically supply power to the access control component when the uninterruptible power supply 702 fails, so as to ensure the stability of the operation of the access control component.

[0082] Furthermore, a sub-control cabinet 503 is provided corresponding to each maintenance line 4, which contains a PLC controller corresponding to various control modes of the safety interlocking system. Through the selection and control of the corresponding PLC controller, the generation and execution of the corresponding combination instructions can be realized. In actual settings, the sub-control cabinet 503 is respectively communicated with the isolating switch 502, the access control 605, the access control indicator light 606, the vehicle signal light 505, the signal light outside the warehouse 501 and other components, so as to realize the control of the above components and complete the switching of the corresponding states of each component. In addition, the sub-control cabinet 503 is communicated with the dispatching room. The dispatching room in the preferred embodiment is arranged on one side of the maintenance warehouse, for example Figure 8 Then the maintenance personnel can complete the corresponding control process through the sub-control cabinet 503 in the maintenance warehouse according to the work needs of the corresponding maintenance line 4.

[0083] Furthermore, a safety warning component is also provided in the maintenance depot corresponding to the maintenance platform, which includes a flashing light 604, a display screen 603 and a broadcast sound column 607. Among them, the flashing light 604 is preferably a flashing LED yellow light, which is provided on the climbing platform 204 and matched with the isolating switch 502. When it is necessary to close the isolating switch 502, the flashing light 604 is controlled to start flashing, indicating that the contact network is about to be energized. After a certain period of time (for example, after 30 seconds), the flashing light 604 automatically stops flashing, and the isolating switch 502 is closed. At the same time, the display screen 603 in the preferred embodiment is an LED display screen, which is preferably provided above the boarding platform 103, such as Fig. 9 As shown in , it is used to give safety warnings to maintenance personnel, and it preferably includes two display modes, red "powered" and green "no power", corresponding to whether the contact network is powered on. Obviously, in addition to being set above the boarding platform 103, the display screen 603 can also be set in other locations, such as on the top platform 204, on the support column 3, on the platform hanging rod 401, or on the protective net hanging rod 405. Finally, the broadcast sound column 607 in the preferred embodiment is preferably a plurality of broadcast sound columns 607 corresponding to the maintenance line 4, and the plurality of broadcast sound columns 607 are preferably arranged at intervals in the longitudinal direction, for prompts or other broadcast notifications before and after the contact network is powered on.

[0084] In addition, it is preferred that a video monitoring component is provided in the maintenance warehouse, which includes a first camera 601 arranged above the boarding platform 103 and the top platform 204, which is used to monitor the situation on the corresponding platform; at the same time, it also includes a second camera 602 arranged in the maintenance warehouse, which is preferably arranged on the crossbeam 302, to monitor the entire top maintenance process in real time and grasp the specific situation on the roof in real time. In actual settings, due to the setting of the contact network at the top of the maintenance line 4, it is difficult to directly set the second camera 602 directly above the maintenance line 4. Therefore, in a preferred embodiment, a second camera 602 is respectively arranged on both sides of the horizontal direction above the maintenance line 4 to ensure that each link of the top operation can be accurately monitored. Further preferably, the first camera 601 is a gun-type camera, which can realize accurate monitoring of the platform extension direction; the second camera 602 is a spherical camera, which can realize 360° all-round monitoring, and can identify the maintenance personnel in the monitoring area, so as to avoid the maintenance personnel in the roof maintenance area before the contact network is energized. Of course, both the first camera 601 and the second camera 602 can be set on the platform hanging rod 401 or the protective net hanging rod 405 as needed.

[0085] Through the corresponding settings of the above-mentioned video monitoring components, accurate monitoring of the working status of the two maintenance platforms, the power-on and power-off status of the contact network, the roof maintenance status, the grounding status of the top operation area, the setting status of the protective net, the working status of the flip board, etc. can be achieved to ensure the accuracy and safety of the work in each link and avoid the occurrence of maintenance accidents. At the same time, in the preferred embodiment, by interlocking the isolation switch 502 with the access control 605, the access control indicator light 606, the vehicle signal light 505, the flashing light 604, the display screen 603, the signal light outside the warehouse 501 and other components, the above-mentioned components can be synchronously switched to the corresponding working state after the isolation switch 502 is closed, providing protection for the safe maintenance of the maintenance personnel.

[0086] When the vehicle is climbing to the top, the process it goes through is as follows: Fig.11 As shown in . Before performing rooftop maintenance, maintenance personnel need to apply for power outage, approval by the dispatching room, disconnection of the isolating switch, and confirmation of power outage by the dispatching room. After the above processes are confirmed, maintenance personnel can enter the rooftop maintenance area for maintenance work, and then carry out the corresponding maintenance work in the rooftop maintenance area. After the rooftop operation is completed, maintenance personnel evacuate the roof and the rooftop platform in turn until the dispatching room confirms that there are no maintenance personnel in the rooftop maintenance operation area, and then determine through the dispatching room whether the contact network meets the power-on conditions. If it meets the conditions, the isolating switch is controlled to close; if it does not meet the conditions, the isolating switch is temporarily closed, and the rooftop maintenance operation area is further checked. After eliminating the problem, the isolating switch is closed again to complete the power-on process of the contact network, ensuring that the vehicle that has completed the maintenance can leave the warehouse.

[0087] The safety interlock system suitable for the maintenance depot of urban railway vehicles in the present invention corresponds to the setting of the maintenance depot for boarding operations of urban railway vehicles. It has a simple structural composition and layout, can accurately realize the power on and off control of the contact network, and realize the isolation of the climbing platform and the boarding platform when the contact network is energized, thereby avoiding the occurrence of safety accidents, ensuring the safety and reliability of maintenance personnel's climbing operations, and improving the efficiency and quality of vehicle top maintenance. It has good application prospects and promotion value.

[0088] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety interlocking system suitable for a railway vehicle maintenance depot, characterized in that: The safety interlock system is arranged corresponding to the maintenance line in the maintenance warehouse, and a plurality of maintenance lines arranged in parallel and at intervals are arranged in the maintenance warehouse, and a boarding platform and a climbing platform are arranged on one side of the maintenance line; The maintenance depot is provided with a working platform for each maintenance line, and the working platform includes a single-side maintenance platform corresponding to the two outermost maintenance lines in the transverse direction and a double-side maintenance platform provided between two adjacent maintenance lines in the middle of the maintenance depot; The single-sided maintenance platform includes a boarding platform and a climbing platform arranged at vertical intervals, and platform hanging rods are arranged corresponding to the two platforms; the platform hanging rods extend vertically and are multiple in longitudinal intervals, and the tops of the platform hanging rods are fixedly connected to the crossbeam at the top of the maintenance warehouse, and one lateral side of the climbing platform is fixed to the middle part of the platform hanging rod, and the other side extends toward the corresponding maintenance line; one lateral side of the boarding platform is fixed to the bottom of the platform hanging rod, and the other side extends toward the corresponding maintenance line; and a boarding platform ladder is arranged between the ground and the boarding platform, and a climbing platform ladder is arranged between the boarding platform and the climbing platform; a plurality of first support rods are arranged on the side of each platform hanging rod away from the two platforms, which are arranged horizontally, one end of which is connected to the platform hanging rod, and the other end is connected to the support columns located on the lateral sides of the maintenance warehouse; and the first support rods arranged corresponding to one platform hanging rod are two arranged vertically at intervals, and the two support rods are respectively connected to the setting positions of the boarding platform and the climbing platform; The double-sided maintenance platform is arranged between two adjacent maintenance lines, and can be regarded as a combination of two single-sided maintenance platforms arranged away from each other; the two top platforms and two vehicle-boarding platforms on the double-sided maintenance platforms are arranged on two sides away from each other of the two platform suspension rods, and a second support rod is arranged horizontally between the two platform suspension rods, and the second support rods are two vertically spaced apart, and the two second support rods are respectively arranged at the setting positions of the vehicle-boarding platform and the top platform; at the same time, reinforcement rods are respectively arranged on the two platform suspension rods, one end of which is connected to the platform suspension rod, and the other end is connected to the middle of the second support rod, so as to form a triangular support structure; Guardrails are respectively provided on both sides of the boarding platform and the top platform; a top maintenance auxiliary mechanism is provided corresponding to the single-sided maintenance platform, which is provided on the side of the maintenance line away from the single-sided maintenance platform; and a top maintenance auxiliary mechanism is provided on the side of the two maintenance lines corresponding to the double-sided maintenance platform away from the double-sided maintenance platform; the top maintenance auxiliary mechanism is used to set a protective net to prevent maintenance personnel from falling from the other side of the roof; The safety interlock system includes a power-on / off component, an access control component and a signal light guide component that are communicatively connected to each other; the power-on / off component includes an isolating switch and a grounding device; the isolating switch is matched and connected to the contact network of the maintenance line to realize the power on and off of the contact network; the grounding device is arranged corresponding to the roof operation area, and is used for the residual power release and reliable grounding of the roof operation area after the contact network is powered off; the access control component includes an access control; the access control is arranged between the boarding platform and the top platform to realize the connection or isolation between the two platforms; the signal light guide component includes an outside-depot signal light and a vehicle signal light; the outside-depot signal light is arranged corresponding to the isolating switch, and is used to display the disconnection state and the connection state of the isolating switch; the vehicle signal light is arranged at the end of the maintenance line to display whether the vehicle can enter and exit the depot; The isolating switch is interlocked with the access control, the signal light outside the warehouse, and the vehicle signal light, so that when the isolating switch is in a closed state, the access control is closed synchronously, the signal light outside the warehouse indicates that the contact network is energized, and the vehicle signal light indicates that the vehicle is not allowed to enter the warehouse on the maintenance line.

2. The safety interlocking system applicable to the urban railway vehicle maintenance depot according to claim 1, wherein: The access control component also includes an access control indicator light; the access control indicator light is interlocked with the isolation switch to display the open and closed status of the access control in real time.

3. The safety interlocking system applicable to the urban railway vehicle maintenance depot according to claim 1, wherein: An uninterruptible power supply is provided corresponding to the access control component, and the uninterruptible power supply is electrically connected to the access control component via a connecting cable for providing uninterruptible power supply to the access control component.

4. The safety interlocking system for urban railway vehicle maintenance depot according to any one of claims 1 to 3, wherein: Also includes a safety warning component; The safety warning component includes one or more of a flashing light, a display screen, and a broadcast sound column; The flashing light is arranged on the climbing platform, and is interlocked with the isolating switch, and is used to flash for warning before the isolating switch is closed and powered on; the display screen is arranged on the climbing platform and / or the boarding platform, and is used to display whether the contact network is powered on; the broadcasting sound column is arranged on the single-side maintenance platform and / or the double-side maintenance platform, and is used for prompting before and after the contact network is powered on.

5. The safety interlocking system for urban railway vehicle maintenance depot according to any one of claims 1 to 3, wherein: Also included is a video surveillance component; The video monitoring component includes a first camera arranged corresponding to the climbing platform and / or the boarding platform, and a second camera arranged corresponding to the vehicle roof inspection area; the first camera and the second camera are respectively arranged in plurality at intervals.

6. The safety interlocking system applicable to the urban railway vehicle maintenance depot according to claim 5, wherein: The first camera is a gun-type camera, and / or the second camera is a dome-type camera.

7. The safety interlocking system for urban railway vehicle maintenance depot according to any one of claims 1 to 3 and 6, wherein: A sub-control cabinet is also provided; the sub-control cabinet is integrated with a PLC controller corresponding to each component in the power on / off component, the access control component and the signal light guide component, for realizing switching control of the corresponding status of each component.

8. The safety interlocking system for urban railway vehicle maintenance depot according to any one of claims 1 to 3 and 6, wherein: A control box is also provided corresponding to the grounding device, which is used to switch the working state of the grounding device and release the residual electricity in the roof maintenance operation area.

9. The safety interlocking system applicable to the urban railway vehicle maintenance depot according to claim 3, wherein: A backup power supply is also provided corresponding to the access control component; the backup power supply is electrically connected to the access control component via a connecting cable, and can start working synchronously when the uninterruptible power supply stops working.

10. The safety interlocking system applicable to the urban railway vehicle maintenance depot according to any one of claims 1 to 3, 6 and 9, wherein: The flip ferry on the corresponding maintenance platform is also provided with an in-place indicator light so that maintenance personnel can observe whether the flip ferry is flipped or retracted into place.

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