A rapid-preparation passenger and freight shared subway car system and its construction method

Abstract

The application provides a passenger and freight shared subway car system capable of being quickly prepared and a construction method thereof. The system comprises a car and a folding chair column device and a central quick-release handrail column device arranged in the car. The folding chair column device comprises passenger seats and handrail columns at both ends of the seats, and the passenger seats and the handrail columns at both ends of the seats are folded or restored together when the train car is converted between a passenger mode and a freight mode. The central quick-release handrail column device comprises a base fixed to the floor of the car and a telescopic handrail column matched with the base, and the central quick-release handrail column device is disassembled or restored when the train car is converted between the passenger mode and the freight mode. The application can quickly switch between the freight mode and the passenger mode, and realizes the quick conversion of the passenger car and the freight car.

Description

Technical Field

[0001] This invention relates to the field of subway freight equipment technology, specifically to a passenger and freight shared subway car system that can be quickly prepared and its construction method. Background Technology

[0002] Freight transport in rail transit is not a new concept. Currently, subway freight transport operation modes can be categorized into three types: The "mixed passenger and freight" mode advocates placing small freight compartments inside passenger carriages. Onboard escorts manually unload the freight during train stops, generally without altering the original structure and train schedule of the rail transit train. This mode is easy to implement and inexpensive, but has low capacity and limited economies of scale. "Shared-line towing" and "shared-line separation" require updating the layout of subway stations and train formation and operation. They necessitate equipping stations with logistics equipment for loading and unloading freight compartments in independent carriages, automated sorting, and specialized warehousing. The shared-line towing mode adds extra freight carriages at the end of the train, allowing passenger boarding and alighting to be synchronized with cargo loading and unloading. The shared-line separation mode uses separate freight and passenger trains operating on the same line with staggered shifts, separating passenger and freight transport by stopping at different platforms.

[0003] However, the existing mixed passenger and freight metro freight system cannot achieve economies of scale and can only transport small items. The co-line towing metro freight system requires frequent train formation and uncoupling operations, which is time-consuming. The co-line separation system requires on-site logistics equipment for independent freight transport, which is costly. Therefore, a shared passenger and freight metro car system is needed to enable rapid conversion between passenger and freight cars, reducing the impact of co-line towing formation and uncoupling operations and increasing the flexibility of metro capacity. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the purpose of this invention is to provide a rapidly configurable passenger and freight shared subway car system and its construction method, which can quickly switch between freight and passenger modes and realize the rapid conversion between passenger and freight cars.

[0005] To solve the above problems, the technical solution of the present invention is as follows:

[0006] A rapidly configurable passenger and freight shared subway car system includes a car and a folding seat column device and a central quick-release handrail column device installed within the car. The folding seat column device includes a passenger seat and handrail columns at both ends of the seat. When the train car switches between passenger and freight modes, the passenger seat and the handrail columns at both ends of the seat can be folded or unfolded together. The central quick-release handrail column device includes a base fixed to the car floor and a retractable handrail column that cooperates with the base. When the train car switches between passenger and freight modes, the central quick-release handrail column device can be disassembled or unfolded.

[0007] Preferably, the seat of the folding chair post device can be rotated to the backrest contact point via the folding chair pivot, and the armrest posts on both sides of the seat can rise up as the seat is folded and be locked against the train wall.

[0008] Preferably, the seat folding includes: unlocking the fixing screws through the observation operation window, pulling out the folding seat, and flipping it upwards to the locked position.

[0009] Preferably, the folding of the seat armrest column includes: the upper armrest and the lower armrest of the seat armrest column are locked to the locking rod groove on the train ceiling by a locking rod. The locking rod is connected to the locking rod groove on the ceiling or reset by raising and lowering a long rod with a built-in concave connector. During the folding process, since the lower armrest column is connected to the folding seat armrest connecting shaft, it can complete the folding and locking together with the folding seat.

[0010] Preferably, the seat back is also provided with a retractable locking mechanism for locking cargo transfer boxes. The retractable locking mechanism can be pulled out from the seat back during cargo transportation and can be retracted into the seat back during passenger transportation to ensure passenger comfort.

[0011] Preferably, the retractable handrail column of the central quick-release handrail column device is provided with quick-release fixing screws at the bottom and a telescopic device that relies on screws for locking is installed inside the handrail column. The handrail column can be lowered and retracted to be completely removed by removing the relevant screws.

[0012] Preferably, the central quick-release handrail column device is fixed to the ceiling substrate through the U-shaped connector of the upper column, the slidable upper column is connected to the lower limit column screw plate through the upper column limit screw plate and the limit screw, and the lower column of the central quick-release handrail column device is connected to the ground screw groove through the screw plate on the lower column using the ground screw.

[0013] Preferably, the operation of the central quick-release handrail column device includes: when switching from passenger mode to freight mode, unlocking the limit screw through the observation operation window and slowly lowering the upper column, opening the fan-shaped cover and unlocking the ground screw, and then moving the entire central handrail column out of the train; when switching from freight mode to passenger mode, opening the fan-shaped cover and aligning the central handrail column with the convex groove of the central base on the train ground and inserting it, tightening the ground screw, then lifting the upper column and aligning it with the concave female connector, holding the upper column and using the limit screw through the observation operation window to tighten it, and finally closing the observation operation window and the fan-shaped cover.

[0014] Furthermore, the present invention also provides a method for constructing a rapidly configurable passenger and freight shared subway car system, comprising the following steps:

[0015] Foldable folding chair pillars and detachable central quick-release handrail pillars are installed inside the train carriages.

[0016] When the train carriage is switched from passenger mode to freight mode, the freight box fixing ring on the train seat is pulled out to switch to the seat freight mode. The goods to be transported are loaded into the freight box, and the freight box is placed on the seat and fixed by the fixing ring.

[0017] When the train carriage is switched from passenger mode to freight mode, the passenger seats and the armrests at both ends of the seats of the folding chair column device are folded and locked together to increase the freight volume and freight area.

[0018] When a train carriage is switched from passenger mode to freight mode, the central quick-release handrail column device can be quickly disassembled by a base fixed to the carriage floor and a retractable handrail column that cooperates with the base, so as to further increase the freight volume and freight area.

[0019] Compared with existing technologies, this invention can quickly switch between freight and passenger transport modes, realize the rapid conversion between passenger and freight carriages, create new express delivery and logistics business models, accelerate the turnover of logistics within cities, and reduce the pressure on ground traffic. Attached Figure Description

[0020] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the passenger and freight shared subway car system of the present invention, which can be quickly prepared;

[0022] Figure 2 This is another structural schematic diagram of the passenger and freight shared subway car system of the present invention that can be quickly prepared;

[0023] Figure 3 This is a diagram of the carriage interface after preparation according to the present invention;

[0024] Figure 4 This is a schematic diagram of the fixed handle for the cargo box of the folding chair of the present invention;

[0025] Figure 5 This is a schematic diagram of the folding of the handrail column of the present invention;

[0026] Figure 6 This is a schematic diagram of the handrail column locking rod of the present invention;

[0027] Figure 7 This is a schematic diagram of the installation and removal of the central quick-release handrail column of the present invention;

[0028] Figure 8 This is a flowchart illustrating the construction method of the passenger and freight shared subway car system of the present invention, which can be quickly prepared. Detailed Implementation

[0029] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0030] Specifically, the present invention provides a rapidly configurable passenger and freight shared subway car system, such as... Figure 1 , Figure 2 and Figure 3 As shown, the system includes a carriage and a folding seat column device and a central quick-release handrail column device installed within the carriage. The folding seat column device consists of a passenger seat and handrail columns at both ends of the seat. When the train carriage switches between passenger and freight modes, the passenger seat and the handrail columns at both ends of the seat are folded or unfolded together. The central quick-release handrail column device is a quick-release modification for the handrail column in the center of the train carriage. It includes a base fixed to the carriage floor and a retractable handrail column that cooperates with the base. When the train carriage switches between passenger and freight modes, the central quick-release handrail column device can be quickly disassembled or unfolded.

[0031] Traditional subway trains are equipped with non-removable and non-foldable hard benches. In this invention, however, the seat cushion of the bench with the folding seatpost device can be rotated to fit against the backrest via a pivot. Simultaneously, the armrests on both sides of the bench can rise as the bench folds and lock against the train wall 1, increasing the train's cross-section and accommodating the transport of more or larger goods. Furthermore, the seat back 4 is equipped with a retractable locking mechanism for securing cargo transfer boxes. This mechanism can be pulled out from the backrest during freight transport and retracted into the backrest during passenger transport, ensuring passenger comfort. Since most subway trains experience peak-valley passenger flow, preparations can be made for freight transport during off-peak hours, and for passenger transport during peak hours. This increases the utilization rate of subway trains and reduces surface logistics congestion.

[0032] Central quick-release handrail column device: In addition to the handrails on both sides of the seats, subway trains also have a tall, continuous handrail column in the middle of the car. These handrail columns have quick-release fixing screws at the bottom and a telescopic device that locks the screws inside. The handrail column can be lowered and retracted completely by removing the screws. Removing the central handrail column significantly increases the passable cross-section and transport space in the subway train car, allowing forklifts and freight pallets to enter for mechanized operations. Before switching to passenger service, the bottom can be locked and the handrail column can be re-erected and secured using the telescopic device.

[0033] Specifically, such as Figure 4 As shown, when the freight volume is small, there is no need to load, unload or fold the passenger seats and central armrests in the carriage. Since the backrest 4 of the passenger seat is equipped with a freight box fixing ring 22, the fixing ring 22 can be pulled out and locked to switch the seat to freight state. The goods to be transported can be loaded into the freight box 21, and the freight box 21 can be placed on the seat and embedded into the ring 22 for fixation. When the train finishes its freight task, the fixing ring 22 can be pushed back into the seat to prepare the seat for passengers to sit in.

[0034] like Figure 5 and Figure 6 As shown, when freight volume is large or a larger train passage is required, passenger seats and handrails need to be folded. The handrails are connected to the train ceiling 2 via a top base plate 25 and to the upper handrail 26 via an upper handrail pivot 18. A horizontal handle bar 17 is rigidly connected to the upper handrail 26, which has a soft handle ring for passenger convenience. It is connected to the lower handrail 27 via an upper handrail connecting plate 16. The connection is covered by a removable protective cover 15 to prevent passenger cuts. In passenger mode, the handrails are unfolded and locked to the fixing groove 10 on the train floor 3 via fixing screws 11 in the observation and operation window 12. In freight folding mode, the upper handrail 26 and lower handrail 27 are locked to the train ceiling 2 via a locking rod 14 and a locking rod groove 19. The locking rod 14 is connected to the ceiling locking rod groove 19 or reset via a built-in long rod 32 with a concave connector that moves up and down. During the folding process, since the lower armrest column 27 is connected to the folding chair armrest connecting pivot 13, it can be folded and locked together with the folding seat.

[0035] The folding chair requires pulling the folding chair seat 5 outwards. The folding chair seat 5 is connected to the support platform 8 with a sliding groove via the folding chair pivot 6 and pivot support column 7. The pivot support column 7 can slide on the support platform 8 with a sliding groove, limited by the sliding groove limit column 9. After pulling the folding chair seat 5 outwards, it is no longer restricted by the folding chair back 4 and can be folded upwards. When switching from passenger to freight transport, if the device needs to be folded, first unlock the fixing screw 11 through the observation operation window 12, then pull out the folding chair seat 5 and flip it upwards to the locked position. Next, lock the armrest, have the operator open the observation operation window 28, manually raise the long rod 32 to the high position, then insert the Allen wrench into the screw hole 29 at the wrench insertion point, and turn the limit screw to lock it in place with the limit screw slot 31. The concave joints of the limit block 33 and the long rod 32 prevent the locking rod from rotating or shaking, which could result in incomplete folding and locking.

[0036] To revert to passenger mode, the locking mechanism is as follows: First, insert an Allen wrench into the screw hole 29 at the wrench insertion point and turn the limit screw to engage with the limit screw slot 31 to release the lock. Then, manually lower the folding chair 5 and push it into the lock. Finally, close the observation window 28 to return to passenger mode. When locking is required, the operator opens the observation window 28 and manually lowers the long rod 32 back to its original position. Then, insert an Allen wrench into the screw hole 29 at the wrench insertion point and turn the limit screw to engage with the limit screw slot 30 to lock the mechanism. The concave joints of the limit block 33 and the long rod 32 prevent the locking rod from rotating or shaking, which could result in incomplete folding and locking.

[0037] like Figure 7 As shown, when freight volume is large or a larger train passage cross section is required, the central handrail column 20 also needs to be disassembled. The central handrail column 20 is mainly fixed to the ceiling base plate 46 through the U-shaped connector 45 of the upper column 44. The sliding upper column 44 is connected to the lower limit column screw plate 42 through the upper column limit screw plate 40 and limit screw 41. The lower column 39 is connected to the ground screw groove 35 through the screw plate 37 on the lower column using the ground screw 36. The U-shaped connector 45, the U-shaped mating female connector 47, and the lower column U-shaped mating connector 48 can prevent the central handrail column 20 from rotating and shaking.

[0038] When switching from passenger to freight transport, if the device needs to be disassembled, first unlock the limit screw 41 through the observation operation window 43 and slowly lower the upper column 44. Then open the fan-shaped cover 38 and unlock the ground screw 36. After that, remove the entire central handrail column 20 from the train. When switching from freight to passenger transport, first open the fan-shaped cover 38 and align the central handrail column 20 with the U-shaped groove 34 in the center of the train floor and insert it. Then tighten the ground screw 37. Next, lift the upper column 44 and align it with the U-shaped connector 47. With a second person holding the upper column 44, use the limit screw 41 through the observation operation window 43 to tighten it. Finally, close the observation operation window 43 and the fan-shaped cover 38.

[0039] Furthermore, the present invention also provides a method for constructing a rapidly configurable passenger and freight shared subway car system, such as... Figure 8 As shown, the method includes the following steps:

[0040] S1: Foldable folding chair pillars and detachable central quick-release handrail pillars are installed in the train carriages.

[0041] S2: When the train carriage is switched from passenger mode to freight mode, the freight box fixing ring on the train seat is pulled out to switch to the seat freight mode. The goods to be transported are loaded into the freight box and placed on the seat and fixed by the fixing ring.

[0042] S3: When the train carriage is switched from passenger mode to freight mode, the passenger seat and the armrests at both ends of the seat of the folding chair post device are folded and locked together to increase the freight volume and freight area.

[0043] S4: When the train carriage is switched from passenger mode to freight mode, the central quick-release handrail column device is quickly disassembled by the base fixed to the carriage floor and the retractable handrail column that cooperates with the base, so as to further increase the freight volume and freight area.

[0044] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A rapidly prefabricated passenger and freight shared subway car system, characterized in that, The system includes a carriage and a folding chair column device and a central quick-release handrail column device installed within the carriage. The folding chair column device includes a passenger seat and handrail columns at both ends of the seat. When the train carriage switches between passenger and freight modes, the passenger seat and the handrail columns at both ends of the seat are folded or unfolded together. The central quick-release handrail column device includes a base fixed to the carriage floor and a retractable handrail column that cooperates with the base. When the train carriage switches between passenger and freight modes, the central quick-release handrail column device is disassembled or unfolded. The seat of the folding chair column device can be rotated to the backrest contact point via a folding chair pivot. The handrail columns on both sides of the seat can rise up as the seat is folded and locked against the train wall. The folding of the seat armrest column includes: the upper armrest and the lower armrest of the seat armrest column are locked to the locking rod slot on the train ceiling by a locking rod. The locking rod is connected to the locking rod slot on the ceiling or reset by raising and lowering a long rod with a built-in concave connector. During the folding process, since the lower armrest column is connected to the folding seat armrest connecting shaft, it can complete the folding and locking together with the folding seat.

2. The rapidly prefabricated passenger and freight shared subway car system according to claim 1, characterized in that, The seat folding process includes: unlocking the fixing screws through the observation operation window, pulling out the folding seat, and flipping it upwards to the locked position.

3. The rapidly prefabricated passenger and freight shared subway car system according to claim 2, characterized in that, The seat back is also equipped with a retractable locking mechanism to help lock the cargo box. The retractable locking mechanism can be pulled out from the seat back when transporting cargo, and can be retracted into the seat back when transporting passengers to ensure passenger comfort. The retractable locking mechanism is a fixed pull ring.

4. The rapidly prefabricated passenger and freight shared subway car system according to claim 3, characterized in that, The retractable handrail column of the central quick-release handrail column device is equipped with quick-release fixing screws at the bottom and a telescopic device that relies on screws for locking is installed inside the handrail column. The handrail column can be lowered and retracted to be completely removed by removing the relevant screws.

5. The rapidly prefabricated passenger and freight shared subway car system according to claim 4, characterized in that, The central quick-release handrail column device is fixed to the ceiling substrate through the U-shaped joint of the upper column. The slidable upper column is connected to the lower limit column screw plate through the upper column limit screw plate and limit screw. The lower column of the central quick-release handrail column device is connected to the ground screw groove through the screw plate on the lower column using ground screws.

6. The rapidly prefabricated passenger and freight shared subway car system according to claim 5, characterized in that, The operation of the central quick-release handrail column device includes: when switching from passenger mode to freight mode, unlocking the limit screw through the observation operation window and slowly lowering the upper column, opening the fan-shaped cover and unlocking the ground screw, and then moving the entire central handrail column out of the train; when switching from freight mode to passenger mode, opening the fan-shaped cover and aligning the central handrail column with the convex groove of the central base on the train ground and inserting it, tightening the ground screw, then lifting the upper column and aligning it with the concave female connector, holding the upper column and using the limit screw through the observation operation window to tighten it, and finally closing the observation operation window and the fan-shaped cover.

7. A method for constructing a rapidly prefabricated passenger and freight shared subway car system according to claim 6, characterized in that, The method includes the following steps: Foldable folding chair pillars and detachable central quick-release handrail pillars are installed inside the train carriages. When the train carriage is switched from passenger mode to freight mode, the seat is switched to freight mode by pulling out the fixing ring on the seat, the goods to be transported are loaded into the freight box, and the freight box is placed on the seat and fixed by the fixing ring. When the train carriage is switched from passenger mode to freight mode, the passenger seats and the armrests at both ends of the seats of the folding chair column device are folded and locked together to increase the freight volume and freight area. When a train carriage is switched from passenger mode to freight mode, the central quick-release handrail column device can be quickly disassembled by a base fixed to the carriage floor and a retractable handrail column that cooperates with the base, so as to further increase the freight volume and freight area.

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