Vehicle door control system and shuttle

Abstract

The application provides a kind of vehicle door control system and shuttle, it is related to vehicle technical field.The vehicle door control system includes main control loop and emergency loop, main control loop includes gas storage device, vehicle door driving mechanism and main control pipeline, gas storage device is communicated with vehicle door driving mechanism by main control pipeline;Emergency loop includes unilateral emergency valve and emergency pipeline, gas storage device is communicated with vehicle door driving mechanism by emergency pipeline, unilateral emergency valve is arranged in emergency pipeline, for controlling the opening of vehicle door. Even if main control pipeline has a problem, emergency pipeline can still be used and can open vehicle door in emergency, ensure the emergency stability of vehicle door control system, improve the timeliness of vehicle door opening in emergency, thereby improve the effectiveness and safety of rescue.

Description

Technical Field

[0001] This invention generally relates to the field of vehicle technology, and more specifically, to a door control system and a shuttle bus. Background Technology

[0002] Shuttle buses are airport-specific vehicles used to transport passengers from the waiting area to the aircraft, or from the terminal to the parking lot or to nearby stations.

[0003] When shuttle buses encounter emergencies such as power outages or door damage, the existing emergency door opening system includes an emergency valve. This valve is located in the connecting pipe between the air source and the door pump. It is used to cut off the connecting pipe and release gas from the air pump, causing the door pump to lose pressure and enabling emergency door opening. The door pump has a throttle valve to control the flow rate. An excessively long connecting pipe will make emergency door opening slow, resulting in poor timeliness and effectiveness, which will affect the rescue outcome and lead to safety issues. Summary of the Invention

[0004] The present invention provides a vehicle door control system and a shuttle vehicle that can quickly open vehicle doors, improving the timeliness and safety of rescue operations.

[0005] According to a first aspect of the present invention, a vehicle door control system is provided, comprising:

[0006] The main control circuit includes an air storage device, a door drive mechanism, and a main control pipeline. The air storage device is connected to the door drive mechanism through the main control pipeline.

[0007] An emergency circuit is provided, comprising a single-sided emergency valve and an emergency pipeline. The gas storage device is connected to the door drive mechanism via the emergency pipeline. The single-sided emergency valve is located on the emergency pipeline and is used to control the opening of the door.

[0008] In some embodiments, the emergency circuit further includes a first pneumatic reversing valve, and the emergency pipeline is connected to the control end of the first pneumatic reversing valve for controlling the door closing air intake chamber of the door drive mechanism to exhaust air.

[0009] In some embodiments, the emergency circuit further includes a first one-way valve disposed in the emergency pipeline for introducing air into the door opening air intake chamber of the door drive mechanism.

[0010] In some embodiments, the main control circuit further includes a sub-control pipeline, a main control valve, and an in-door emergency valve. One end of the sub-control pipeline is connected to the main control pipeline, and the other end is connected to the door drive mechanism. The main control valve is located in the sub-control pipeline and is used to control the air intake chamber for opening or closing in the door drive mechanism.

[0011] The emergency valve inside the door is installed in the sub-control pipeline and is connected to the control end of the main control valve, so that the door opening air intake chamber of the door drive mechanism can be filled with air.

[0012] In some embodiments, there are multiple door drive mechanisms, and the multiple door drive mechanisms are respectively disposed on both sides of the main control pipeline;

[0013] There are two single-sided emergency valves. One of the single-sided emergency valves is used to control multiple door drive mechanisms located on one side of the main control pipeline, and the other single-sided emergency valve is used to control multiple door drive mechanisms located on the other side of the main control pipeline.

[0014] In some embodiments, the main control circuit includes a cab emergency valve, the inlet of which is connected to the air storage device, one outlet of which is connected to the main control pipeline, and the other outlet of which is connected to the emergency pipeline, for controlling the exhaust of the closing air chamber and / or the intake of the opening air chamber of all the door drive mechanisms.

[0015] In some embodiments, the emergency circuit further includes a first shuttle valve, one inlet of which is connected to the interface of the single-sided emergency valve, the other inlet of which is connected to the other outlet of the cab emergency valve, and the outlet of which is connected to the emergency pipeline.

[0016] In some embodiments, the main control circuit includes a main pneumatic reversing valve, which is disposed in the main control pipeline, and the emergency pipeline is connected to the control terminal of the main pneumatic reversing valve for controlling the on / off state of the main control pipeline.

[0017] In some embodiments, the emergency circuit further includes a second shuttle valve, with the two emergency pipelines located on both sides of the main control pipeline respectively connected to the two inlets of the second shuttle valve, and the outlet of the second shuttle valve connected to the control end of the main pneumatic reversing valve.

[0018] According to a second aspect of the present invention, embodiments of the present invention also provide a shuttle bus, including the aforementioned door control system.

[0019] One embodiment of the present invention has the following advantages or beneficial effects:

[0020] The door control system and shuttle bus provided in this invention, when a sudden situation occurs, can open the door by pressing a single-sided emergency valve, which in turn sends an air supply from the air storage device to the door drive mechanism via an emergency pipeline. Since the air storage device is connected to the door drive mechanism via the emergency pipeline, and the emergency pipeline and main control pipeline are independently configured, even if the main control pipeline malfunctions, the emergency pipeline can still be used and the door can be opened in an emergency. This ensures the emergency stability of the door control system, improves the timeliness of door opening in emergencies, and thus enhances the effectiveness and safety of rescue operations. Attached Figure Description

[0021] To better understand the present invention, reference may be made to the embodiments shown in the following drawings. Components in the drawings are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of the invention. Furthermore, related elements or components may have different arrangements as known in the art. Additionally, in the drawings, the same reference numerals denote the same or similar components in various figures. The above and other features and advantages of the present invention will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0022] in:

[0023] Figure 1 The diagram shown is a structural schematic of a door control system according to an embodiment of the present invention;

[0024] Figure 2 The diagram shown is a schematic diagram of the display sub-control pipeline of a door control system according to an embodiment of the present invention;

[0025] Figure 3 The diagram shown is a structural schematic of a door control system according to an embodiment of the present invention, displaying a single-sided emergency valve and a first shuttle valve.

[0026] The reference numerals in the attached figures are explained as follows:

[0027] 1. Main control circuit; 11. Air storage device; 12. Door drive mechanism; 13. Main control pipeline; 14. Sub-control pipeline; 15. Main control valve; 16. Emergency valve inside the door; 17. Emergency valve in the cab; 18. Main pneumatic directional valve; 19. Main check valve;

[0028] 2. Emergency circuit; 21. Single-sided emergency valve; 22. Emergency pipeline; 23. First pneumatic directional valve; 24. First check valve; 25. First shuttle valve; 26. Second shuttle valve. Detailed Implementation

[0029] The technical solutions of the exemplary embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The exemplary embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present invention.

[0030] In the description of this invention, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more; and the term "and / or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the / described" object or "an" object are also intended to indicate one of a possible plurality of such objects.

[0031] Unless otherwise specified or stated, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Furthermore, in the description of this invention, it should be understood that the directional terms such as "upper," "lower," "inner," and "outer" described in the exemplary embodiments of this invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the exemplary embodiments of this invention. It should also be understood that, in the context of an element or feature being connected to another element (one or more) "upper," "lower," "inner," or "outer," it can be directly connected to the other element (one or more) "upper," "lower," "inner," or "outer," or indirectly connected to the other element (one or more) "upper," "lower," "inner," or "outer" through an intermediate element.

[0033] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0034] This embodiment provides a door control system applicable to the field of vehicle technology, particularly for vehicles with multiple doors such as buses and shuttle buses. Figure 1As shown, the door control system includes a main control circuit 1, which includes an air storage device 11, a door drive mechanism 12, and a main control line 13. The air storage device 11 can be an air tank or an air bladder, etc., and is used to store air, which can be air, nitrogen, or other inert gases. The air storage device 11 is connected to the door drive mechanism 12 through the main control line 13 (the main control line 13 is shown in solid lines). The air storage device 11 provides air to the door drive mechanism 12 through the main control line 13. The door drive mechanism 12 can be a door drive cylinder. The main control line 13 serves to deliver the air source for controlling the opening and closing of the door.

[0035] Specifically, the door drive mechanism 12 has an opening air intake chamber and a closing air intake chamber. If the main control line 13 supplies air to the opening air intake chamber, it is used to control the opening of the door; if the main control line 13 supplies air to the closing air intake chamber, it is used to control the closing of the door.

[0036] It is understood that a piston is slidably disposed within the door drive mechanism 12, with a piston rod disposed on the piston to divide the inner cavity of the door drive mechanism 12 into a rod-type cavity and a rodless cavity. The rod-type cavity of the door drive mechanism 12 can be either an opening air intake cavity or a closing air intake cavity; similarly, the rodless cavity of the door drive mechanism 12 can also be either an opening air intake cavity or a closing air intake cavity. This embodiment does not limit the positions of the opening and closing air intake cavities and can be adjusted according to actual production conditions. However, the opening and closing air intake cavities correspond to the rod-type cavity and the rodless cavity respectively, and cannot all be located within the same rod-type cavity or rodless cavity. Furthermore, the piston rod of the door drive mechanism 12 is connected to the door via a connecting structure, thereby controlling the opening and closing of the door according to the direction of piston rod movement.

[0037] In one embodiment, such as Figures 1-2 As shown, the main control circuit 1 also includes a sub-control line 14 and a main control valve 15. One end of the sub-control line 14 is connected to the main control line 13, and the other end is connected to the door drive mechanism 12. The main control valve 15 is located in the sub-control line 14 and is used to control the air intake of the door opening air intake chamber or the door closing air intake chamber in the door drive mechanism 12.

[0038] The main control valve 15 is a two-position five-way valve with five ports: A, B, C, D, and E. When the main control valve 15 is in the left position, the sub-control line 14 is connected to port B of the main control valve 15, allowing the air source flowing from the sub-control line 14 to enter the main control valve 15 through port B. Port B and port D are connected, and the air source then enters the closing air intake chamber of the door drive mechanism 12 through port D to control the closing of the door. When the main control valve 15 is in the right position, the sub-control line 14 is connected to port B of the main control valve 15, allowing the air source flowing from the sub-control line 14 to enter the main control valve 15 through port B. Port B and port E are connected, and the air source then enters the opening air intake chamber of the door drive mechanism 12 through port E to control the opening of the door.

[0039] The main control line 13 and the door drive mechanism 12 of this disclosure are connected by a sub-control line 14. The sub-control line 14 acts as a branch, and can deliver the air source in the main control line 13 to the door drive mechanism 12 through the sub-control line 14. The main control valve 15 can be used to supply air to the opening air intake chamber or the closing air intake chamber of the door drive mechanism 12 respectively, thereby realizing the opening and closing of the door and ensuring the normal use of the door.

[0040] In one embodiment, such as Figures 1-2 As shown, the main control circuit 1 also includes a main check valve 19, which is located in the sub-control line 14. The main control valve 19 restricts the unidirectional flow of the air source in the sub-control line 14 to prevent air source backflow and ensure the reliability of door opening and closing.

[0041] In one embodiment, such as Figures 1-2 As shown, the main control circuit 1 also includes an in-door emergency valve 16, which is located in the sub-control pipeline 14 and connected to the control end of the main control valve 15, so that the door opening air intake chamber of the door drive mechanism 12 can be filled with air.

[0042] Specifically, the emergency valve 16 inside the door is a two-position three-way valve. Under normal conditions, when the emergency valve 16 inside the door is not pressed, its working position is the left position. The air source in the sub-control pipeline 14 enters the door drive mechanism 12 through the emergency valve 16 inside the door, which will not obstruct the normal opening and closing of the door. In an emergency, when the emergency valve 16 inside the door is pressed, its working position is the right position. The air source in the closing air intake chamber of the door drive mechanism 12 is discharged through the emergency valve 16 inside the door, making it convenient for passengers to manually open the door.

[0043] Two throttle valves are provided in the door drive mechanism 12. The two throttle valves correspond to the door opening air intake chamber and the door closing air intake chamber, respectively, and are used to limit the flow rate of the air source into the door opening air intake chamber and the door closing air intake chamber, so as to improve the smoothness of opening and closing the door.

[0044] When emergencies such as power outages or door damage occur, the overall delivery pipeline is relatively long because other control or detection elements are installed on the main control pipeline 13 and / or sub-control pipeline 14. The transmission time of the air source through the main control pipeline 13 and sub-control pipeline 14 is also relatively long. In addition, the throttle valve will limit the flow rate of the air source, resulting in the door opening being relatively slow, which affects the timeliness and effectiveness of rescue.

[0045] To solve this problem, such as Figure 1 As shown, the door control system also includes an emergency circuit 2, which includes a single-sided emergency valve 21 and an emergency pipeline 22. The gas storage device 11 is connected to the door drive mechanism 12 through the emergency pipeline 22 (the emergency pipeline 22 is marked with a dashed line). The emergency pipeline 22 of the emergency circuit 2 is connected in parallel with the main control pipeline 13 of the main control circuit 1 and is set independently. The single-sided emergency valve 21 is set on the emergency pipeline 22 and is used to control the opening of the door.

[0046] Among them, such as Figure 1 and Figure 3 As shown, the single-sided emergency valve 21 is a two-position four-way valve. The single-sided emergency valve 21 has four ports. The first port 21a of the single-sided emergency valve 21 is connected to the gas storage device 11. The second port 21b of the single-sided emergency valve 21 is connected to the door drive mechanism 12. The third port 21c of the single-sided emergency valve 21 is closed or connected to the first port 21a. The fourth port 21d of the single-sided emergency valve 21 is closed or connected to the second port 21b.

[0047] When the single-sided emergency valve 21 is not pressed, its working position is in the lower position. The gas source supplied by the gas storage device 11 enters the single-sided emergency valve 21 through the first interface 21a and is delivered to the third interface 21c. The door drive mechanism 12, the second interface 21b, and the fourth interface 21d are connected in sequence. Since there is no connection between the third interface 21c and the fourth interface 21d, the gas source between the gas storage device 11 and the door start cylinder cannot flow, so the single-sided emergency valve 21 will not control the intake or exhaust of the door drive mechanism 12. When the single-sided emergency valve 21 is pressed, its working position is in the upper position. The gas storage device 11 is connected to the first interface 21a, the first interface 21a is connected to the second interface 21b, and the second interface 21b is connected to the door drive mechanism 12. This allows the gas source output by the gas storage device 11 to be connected to the door drive mechanism 12 through the first interface 21a and the second interface 21b, which is used to control the opening of the door.

[0048] In this embodiment, the door control system, when a sudden situation occurs, activates the single-sided emergency valve 21. The gas storage device 11 supplies gas to the door drive mechanism 12 through the emergency pipeline 22, causing the door to open. Since the gas storage device 11 is connected to the door drive mechanism 12 via the emergency pipeline 22, and the emergency pipeline 22 and the main control pipeline 13 are independently configured, even if the main control pipeline 13 malfunctions, the emergency pipeline 22 can still be used and can open the door in an emergency. This ensures the emergency stability of the door control system, improves the timeliness of door opening in emergencies, and thus enhances the effectiveness and safety of rescue efforts.

[0049] In one embodiment, such as Figure 1 As shown, the emergency circuit 2 also includes a first pneumatic reversing valve 23, and the emergency pipeline 22 is connected to the control end of the first pneumatic reversing valve 23 to control the door closing air intake chamber of the door drive mechanism 12 to exhaust air.

[0050] The first pneumatic reversing valve 23 is a two-position three-way valve. Its inlet is connected to the closing air intake chamber of the door drive mechanism 12, and one of its two outlets is connected to the inlet. When the emergency valve 21 is not pressed, the emergency line 22 does not push the first pneumatic reversing valve 23 to change position; the valve is in the left position, connecting the closing air intake chamber of the door drive mechanism 12 to the inlet, but exhausting air from the outlet. When the emergency valve 21 is pressed, the emergency line 22 pushes the first pneumatic reversing valve 23 to change position; the valve is in the right position, connecting the closing air intake chamber of the door drive mechanism 12 to one of its outlets, allowing air from the closing air intake chamber to be discharged to the outside atmosphere through the outlet.

[0051] This disclosure connects the emergency pipeline 22 to the control terminal of the first pneumatic reversing valve 23, which can control the door closing air intake chamber of the door drive mechanism 12 to exhaust air. At this time, the door has no resistance to closing, and passengers can manually pull the door to open it, thus achieving the effect of emergency door opening.

[0052] Understandably, by using the first pneumatic reversing valve 23, accurate control can be achieved even in the event of a power outage, thus improving reliability.

[0053] In addition, the first pneumatic reversing valve 23 can be directly installed at the cylinder port of the door drive mechanism 12, so that the door drive mechanism 12 exhausts through the first pneumatic reversing valve 23, thereby reducing the length of the exhaust channel between the first pneumatic reversing valve 23 and the door drive mechanism 12 and improving exhaust efficiency.

[0054] In one embodiment, such as Figure 1As shown, the emergency circuit 2 also includes a first check valve 24, which is disposed in the emergency pipeline 22 and is used to supply air to the door opening air intake chamber of the door drive mechanism 12.

[0055] The first one-way valve 24 restricts the unidirectional flow of air. Air in the emergency pipeline 22 flows unidirectionally through the first one-way valve 24 to the opening air intake chamber of the door drive mechanism 12, facilitating door opening. It is worth noting that, under the action of the first pneumatic reversing valve 23, air in the closing air intake chamber of the door drive mechanism 12 can be discharged, and air can be introduced into the opening air intake chamber of the door drive mechanism 12 via the first one-way valve 24, further increasing the door opening speed. This method transforms the manual door opening into automatic opening, reducing a manual opening action and improving emergency convenience and efficiency.

[0056] It should be noted that the emergency pipeline 22 includes at least a first branch and a second branch. The first one-way valve 24 is located in the first branch, and the first pneumatic reversing valve 23 is located in the second branch. The first branch and the second branch are connected in parallel so that the air intake and exhaust processes of the door drive mechanism 12 are independent of each other and do not interfere with each other.

[0057] In one embodiment, there are multiple door drive mechanisms 12, which are respectively disposed on both sides of the main control pipeline 13.

[0058] For example, there are four door drive mechanisms 12. Two of them are located on the upper side of the main control line 13, collectively referred to as the right-side door drive mechanisms 12, used to control the opening and closing of the right-side door. The other two are located on the lower side of the main control line 13, collectively referred to as the left-side door drive mechanisms 12, used to control the opening and closing of the left-side door. Of course, the number of door drive mechanisms 12 is not limited to four; it can also be six, eight, etc. The number of left-side and right-side door drive mechanisms 12 can be the same or different.

[0059] Understandably, there are multiple sub-control lines 14, main control valves 15, and in-door emergency valves 16. Multiple door drive mechanisms 12 and multiple sub-control lines 14 are correspondingly arranged. The main control line 13 connects to multiple door drive mechanisms 12 through multiple sub-control lines 14, forming multiple branch structures, ensuring that the opening and closing of each door does not interfere with or affect each other. Simultaneously, multiple door drive mechanisms 12, multiple main control valves 15, and multiple in-door emergency valves 16 are correspondingly arranged. The multiple main control valves 15 control the air intake and exhaust of multiple door drive mechanisms 12. The multiple in-door emergency valves 16 control the exhaust of the closing air intake chamber of multiple door drive mechanisms 12, achieving the effect of quickly opening a single door in an emergency.

[0060] There are two single-sided emergency valves 21. One single-sided emergency valve 21 is used to control multiple door drive mechanisms 12 located on one side of the main control pipeline 13, and the other single-sided emergency valve 21 is used to control multiple door drive mechanisms 12 located on the other side of the main control pipeline 13.

[0061] Specifically, the two single-sided emergency valves 21 can correspond to the single-sided emergency valve 21 on the left and the single-sided emergency valve 21 on the right, respectively. The single-sided emergency valve 21 on the left can control the multiple door drive mechanisms 12 on the left, so that the doors on the left can be fully opened, making it easier for passengers to be rescued from the left. The single-sided emergency valve 21 on the right can control the multiple door drive mechanisms 12 on the right, so that the doors on the right can be fully opened, making it easier for passengers to be rescued from the right, thus achieving the effect of rapid emergency opening of the single-sided doors.

[0062] In one embodiment, such as Figure 1 As shown, the main control circuit 1 includes a cab emergency valve 17. The inlet of the cab emergency valve 17 is connected to the air storage device 11. One outlet of the cab emergency valve 17 can be connected to the main control pipeline 13, and the other outlet of the cab emergency valve 17 can be connected to the emergency pipeline 22. It is used to control the exhaust of the closing air intake chamber and / or the intake of the opening air intake chamber of all door drive mechanisms 12.

[0063] The emergency valve 17 in the driver's cab is a two-position three-way valve. When the emergency valve 17 is not pressed, its working position is the lower position. The air source in the air storage device 11 enters the emergency valve 17 through its inlet, and one of its outlets supplies air to the door drive mechanism 12 through the main control pipeline 13, ensuring the reliability of the door opening and closing. When the emergency valve 17 is pressed, its working position is the upper position. The air source in the air storage device 11 enters the emergency valve 17 through its inlet, and the other outlet supplies air to the emergency pipeline 22. The emergency pipeline 22 can then control the closing air intake chamber of the door drive mechanism 12 to exhaust air through the first pneumatic reversing valve 23. The emergency pipeline 22 can also supply air to the opening air intake chamber of the door drive mechanism 12 through the first one-way valve 24, so that all doors open synchronously.

[0064] This invention utilizes the emergency valve 17 in the driver's cab to supply air to the emergency pipeline 22, shortening the length of the exhaust action pipeline and bypassing the throttle valve restriction, which can quickly discharge gas. All doors can be opened simultaneously and automatically in an emergency, with a response time of approximately 2 to 3 seconds, facilitating rapid passenger escape and improving the effectiveness and safety of rescue.

[0065] In one embodiment, such as Figure 1As shown, the emergency circuit 2 also includes a first shuttle valve 25. One inlet of the first shuttle valve 25 is connected to the outlet of the single-sided emergency valve 21, the other inlet of the first shuttle valve 25 is connected to the other outlet of the cab emergency valve 17, and the outlet of the first shuttle valve 25 is connected to the emergency pipeline 22.

[0066] When the single-sided emergency valve 21 is pressed and the cab emergency valve 17 is not pressed, the cab emergency valve 17 is in the lower position and the single-sided emergency valve 21 is in the upper position. The gas source of the gas storage device 11 passes through the cab emergency valve 17, then through the single-sided emergency valve 21 into one of the inlets of the first shuttle valve 25, and then through the outlet of the first shuttle valve 25 to the emergency pipeline 22 for controlling the opening of the vehicle door. When the single-sided emergency valve 21 is not pressed and the cab emergency valve 17 is pressed, the cab emergency valve 17 is in the upper position and the single-sided emergency valve 21 is in the lower position. The gas source of the gas storage device 11 passes through the cab emergency valve 17, then through the single-sided emergency valve 21 into the other inlet of the first shuttle valve 25, and then through the outlet of the first shuttle valve 25 to the emergency pipeline 22 for controlling the opening of the vehicle door.

[0067] The first shuttle valve 25 used in this disclosure can restrict the unidirectional flow direction of the air source, preventing backflow of air source in the door drive mechanism 12. At the same time, since the two inlets of the first shuttle valve 25 are respectively connected to the cab emergency valve 17 and the single-sided emergency valve 21, the operation of the two valves, the cab emergency valve 17 and the single-sided emergency valve 21, does not affect each other, and they can also share a common emergency pipeline 22, controlling the opening of the door by controlling the action of the door drive mechanism 12.

[0068] In one embodiment, such as Figure 1 As shown, the main control circuit 1 includes a main pneumatic reversing valve 18, which is located in the main control pipeline 13. The emergency pipeline 22 is connected to the control end of the main pneumatic reversing valve 18 and is used to control the on / off state of the main control pipeline 13.

[0069] Among them, the main air-controlled directional valve 18 is a two-position three-way valve. The inlet of the main air-controlled directional valve 18 is connected to the outlet of the emergency valve 17 in the cab. One of the outlets of the main air-controlled directional valve 18 is connected to the main control pipeline 13, and the other outlet of the main air-controlled directional valve 18 is in a locked state.

[0070] When none of the single-sided emergency valves 21 are pressed, the main air-controlled directional valve 18 is in the lower position. The air source of the air storage device 11 passes through the cab emergency valve 17 and the main air-controlled directional valve 18. One of the outlets of the main air-controlled directional valve 18 supplies air to the door drive mechanism 12 through the main control pipeline 13 and the sub-control pipeline 14. The main control pipeline 13 is in the open state. When at least one of the cab emergency valve 17 and the single-sided emergency valves 21 is pressed, the air source enters the emergency pipeline 22. The air source in the emergency pipeline 22 pushes the control end of the main air-controlled directional valve 18 to switch positions, so that the main air-controlled directional valve 18 is in the upper position. The air source of the air storage device 11 enters the main air-controlled directional valve 18 through the cab emergency valve 17. Since the other outlet of the main air-controlled directional valve 18 is in the locked state, the main control pipeline 13 is in the open state and cannot supply air to the main control pipeline 13.

[0071] In this manner, when the left-side emergency valve 21 is pressed, only the corresponding emergency line 22 controls the left-side door drive mechanism 12 to open the left door. Since the emergency line 22 can control the main pneumatic reversing valve 18 to switch positions, cutting off the main control line 13 and maintaining pressure, the right-side door drive mechanism 12 will not activate, meaning the right-side door will not open, thus improving the reliability of opening the single-side door. It is understandable that pressing the right-side emergency valve 21 opens the right-side door, while the left-side door remains closed; the principle is similar and will not be elaborated further.

[0072] In one embodiment, such as Figure 1 As shown, the emergency circuit 2 also includes a second shuttle valve 26. Two emergency pipelines 22 located on both sides of the main control pipeline 13 are respectively connected to the two inlets of the second shuttle valve 26, and the outlet of the second shuttle valve 26 is connected to the control end of the main pneumatic reversing valve 18.

[0073] The second shuttle valve 26 used in this disclosure can restrict the unidirectional flow direction of the air source, preventing backflow of air source in the door drive mechanism 12. At the same time, since the two inlets of the second shuttle valve 26 are connected to the emergency pipelines 22 located on the left and right sides respectively, the air source flow in the two emergency pipelines 22 does not affect each other. Furthermore, the working position switching of the main air control reversing valve 18 can be controlled by sharing a second shuttle valve 26, further improving the reliability of unilateral emergency door opening.

[0074] The working process of the door control system provided in this embodiment is as follows:

[0075] 1. When the left-side emergency valve 21 is pressed, the cab emergency valve 17 is in the lower position, and the left-side emergency valve 21 is in the upper position. The air source in the air storage device 11 enters the left-side emergency valve 21 through the cab emergency valve 17, and then enters the emergency pipeline 22 through the first shuttle valve 25. The emergency pipeline 22 is divided into two branches. One branch controls the opening of the first pneumatic reversing valve 23, which exhausts the closing air intake chamber of the left door drive mechanism 12, allowing the left door drive mechanism 12 to quickly lose closing pressure. At the same time, the first one-way valve 24 is used to introduce air into the opening air intake chamber of the left door drive mechanism 12, so that the left door can be opened quickly in an emergency. The other branch controls the switching of the working position of the main pneumatic reversing valve 18 through the second shuttle valve 26, which cuts off the main control pipeline 13 and maintains pressure, and prevents air from entering the door drive mechanisms 12, so that the right door will not open. Pressing the single-sided emergency valve 21 on the right side works on the same principle as on the left side, so it will not be described in detail.

[0076] 2. When the cab emergency valve 17 is opened, the cab emergency valve 17 is in the upper position, and the single-sided emergency valve 21 is in the lower position. The air source in the air storage device 11 passes through the cab emergency valve 17 and then enters the two emergency pipelines 22 through the two first shuttle valves 25. Each emergency pipeline 22 is divided into two branches. One branch controls the opening of the first pneumatic reversing valve 23, which exhausts the closing air intake chamber of the door drive mechanism 12. At the same time, the first one-way valve 24 introduces air into the opening air intake chamber of the door drive mechanism 12, allowing the door to be opened quickly in an emergency. The two emergency pipelines 22 control the left and right doors respectively, realizing that one cab emergency valve 17 controls multiple doors to open quickly and automatically in an emergency. The other branch of each of the two emergency pipelines 22 controls the switching of the working position of the main pneumatic reversing valve 18 through the second shuttle valve 26, which disconnects the main control pipeline 13.

[0077] 3. When multiple emergency valves 16 inside the doors are pressed, the door drive mechanism 12 corresponding to the multiple emergency valves 16 inside the doors can be activated to open a single door in an emergency.

[0078] The door control system provided in this embodiment utilizes a single-sided emergency valve 21 to enable rapid emergency opening of a single-sided door, a driver's cab emergency valve 17 to control the rapid emergency opening of all doors, and an individual emergency valve 16 within each door to control the independent rapid emergency opening of each door, thus realizing different escape scenarios. Simultaneously, components such as the main pneumatic reversing valve 18 and the first pneumatic reversing valve 23 are all pneumatically controlled, allowing the shuttle bus to still open its doors in an emergency even when disconnected.

[0079] This embodiment also provides a shuttle bus, including the aforementioned door control system. Since the gas storage device 11 is connected to the door drive mechanism 12 via the emergency pipeline 22, and the emergency pipeline 22 and the main control pipeline 13 are independently configured, even if the main control pipeline 13 malfunctions, the emergency pipeline 22 can still be used and can open the door in an emergency, ensuring the emergency stability of the door control system, improving the timeliness of door opening in emergencies, and thus enhancing the effectiveness and safety of rescue efforts.

[0080] It should be noted that the embodiments of the present invention shown in the drawings and described in this specification are merely one example employing the principles of the invention. Those skilled in the art will clearly understand that the principles of the invention are not limited to any details or components of the apparatus shown in the drawings or described in the specification.

[0081] It should be understood that the application of this invention is not limited to the detailed structure and arrangement of the components presented in this specification. The invention can have other embodiments and can be implemented and performed in various ways. The foregoing variations and modifications fall within the scope of this invention. It should be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of the invention. The embodiments described in this specification illustrate the best known mode for carrying out the invention and will enable those skilled in the art to utilize the invention.

[0082] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and exemplary embodiments are to be considered as exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

[0083] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of protection of the present invention is limited only by the appended claims.

Claims

1. A vehicle door control system, characterized in that, include: The main control circuit includes an air storage device, a door drive mechanism, and a main control pipeline. The air storage device is connected to the door drive mechanism through the main control pipeline. An emergency circuit, comprising a single-sided emergency valve and an emergency pipeline, wherein the gas storage device is connected to the door drive mechanism via the emergency pipeline, and the single-sided emergency valve is located in the emergency pipeline for controlling the opening of the door; The number of door drive mechanisms is multiple, and the multiple door drive mechanisms are respectively arranged on both sides of the main control pipeline; There are two single-sided emergency valves. One of the single-sided emergency valves is used to control multiple door drive mechanisms located on one side of the main control pipeline, and the other single-sided emergency valve is used to control multiple door drive mechanisms located on the other side of the main control pipeline.

2. The vehicle door control system according to claim 1, characterized in that, The emergency circuit also includes a first pneumatic reversing valve, and the emergency pipeline is connected to the control end of the first pneumatic reversing valve to control the door closing air intake chamber of the door drive mechanism to exhaust air.

3. The door control system according to claim 2, characterized in that, The emergency circuit also includes a first one-way valve, which is disposed in the emergency pipeline and is used to introduce air into the door opening air intake chamber of the door drive mechanism.

4. The door control system according to claim 1, characterized in that, The main control circuit also includes a sub-control pipeline, a main control valve, and an emergency valve inside the door. One end of the sub-control pipeline is connected to the main control pipeline, and the other end is connected to the door drive mechanism. The main control valve is located in the sub-control pipeline and is used to control the air intake chamber for opening or closing in the door drive mechanism. The emergency valve inside the door is installed in the sub-control pipeline and is connected to the control end of the main control valve, so that the door opening air intake chamber of the door drive mechanism can be filled with air.

5. The door control system according to claim 1, characterized in that, The main control circuit includes a cab emergency valve, the inlet of which is connected to the air storage device, one outlet of which can be connected to the main control pipeline, and the other outlet of which can be connected to the emergency pipeline, for controlling the exhaust of the closing air intake chamber and / or the intake of the opening air intake chamber of all the door drive mechanisms.

6. The door control system according to claim 5, characterized in that, The emergency circuit also includes a first shuttle valve, one inlet of which is connected to the interface of the single-sided emergency valve, the other inlet of which is connected to the other outlet of the cab emergency valve, and the outlet of which is connected to the emergency pipeline.

7. The door control system according to claim 1, characterized in that, The main control circuit includes a main pneumatic reversing valve, which is installed in the main control pipeline. The emergency pipeline is connected to the control end of the main pneumatic reversing valve and is used to control the on / off state of the main control pipeline.

8. The door control system according to claim 7, characterized in that, The emergency circuit also includes a second shuttle valve. The two emergency pipelines located on both sides of the main control pipeline are respectively connected to the two inlets of the second shuttle valve, and the outlet of the second shuttle valve is connected to the control end of the main pneumatic reversing valve.

9. A shuttle bus, characterized in that, Including the door control system as described in any one of claims 1 to 8.

Images