Emergency unlocking device and vehicle

Abstract

The application provides an emergency unlocking device and a vehicle, and relates to the technical field of rail transit. The emergency unlocking device comprises a main body device, a fixing plate, a cover plate and an annular fixing part. The main body device has a mounting plate and an unlocking handle, and is fixed to the outer side of a stand cover plate. The fixing plate has a fixing hole, and the main body device is fixed to the stand cover plate through the fixing hole. The cover plate has a through hole, and the cover plate is attached to the fixing plate and used for covering the fixing hole. The annular fixing part is attached to the cover plate, and at least part of the annular fixing part passes through the through hole and is connected to the fixing plate. By fixing the main body device to the outer side of the stand cover plate, the emergency unlocking device is convenient to maintain. Meanwhile, the cover plate is attached to the fixing plate by using the annular fixing part, so that the overall appearance and tidiness of the emergency unlocking device are ensured.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to an emergency unlocking device and vehicle. Background Technology

[0002] Escape doors are a type of escape equipment installed on subway or light rail trains. In emergency or accidental situations, evacuation doors can open to create an evacuation route for personnel. Subway evacuation doors are often equipped with emergency unlocking devices, also known as train emergency door opening devices. These devices are used to manually open subway doors in abnormal situations, such as when the doors cannot be opened or in the event of a sudden incident. This allows evacuees to quickly open the evacuation doors in emergencies. Under the protection of the vehicle system, once the emergency unlocking device is triggered, it will cause the subway to automatically brake. Normal operation can only resume after a designated person manually restores it. Therefore, subway emergency unlocking devices are equipped with protective mechanisms to prevent passengers from accidentally unlocking them.

[0003] Currently, the relevant emergency unlocking device is installed inside the column cover plate, which requires the column cover plate to be removed for later maintenance, adjustment and replacement, making the operation complicated. Summary of the Invention

[0004] This invention provides an emergency unlocking device and a vehicle to address how to improve the ease of maintenance of the emergency unlocking device while ensuring its neat and aesthetically pleasing appearance.

[0005] This invention provides an emergency unlocking device, comprising: a main body having a mounting plate and an unlocking handle, the main body being fixed to the outside of a column cover; a fixing plate having a fixing hole through which the main body is fixed to the column cover; a cover plate having a through hole, the cover plate being fitted to the fixing plate to cover the fixing hole; and an annular fixing member fitting to the cover plate, at least a portion of the annular fixing member passing through the through hole and connected to the fixing plate.

[0006] Furthermore, the fixing plate has the connecting threaded hole, the inner wall surface of the connecting threaded hole has an internal thread, the outer wall surface of the annular fastener has an external thread, and the annular fastener and the fixing plate are threaded together.

[0007] Furthermore, the fixing plate has a snap-fit ​​hole, the inner wall surface of the snap-fit ​​hole has a snap groove, the outer wall surface of the annular fastener has a protrusion, and the annular fastener and the fixing plate are engaged by snap-fit.

[0008] Furthermore, the annular fastener is provided with a plurality of adjustment holes, which are evenly distributed on the surface of the annular fastener.

[0009] Furthermore, the emergency unlocking device also includes a transparent plate located between the main body and the fixed plate, which separates the unlocking handle from the outside world.

[0010] Furthermore, the fixing plate has a groove on the side near the main body device, and the transparent plate is placed in the groove.

[0011] Furthermore, the mounting plate has a positioning pin, and the fixing plate has a positioning hole, through which the positioning pin can pass.

[0012] This invention provides a vehicle comprising: the aforementioned emergency unlocking device; a pillar cover having an inwardly extending recessed groove, wherein the emergency unlocking device is fixed within the recessed groove.

[0013] Furthermore, the column cover plate has a hyperboloid structure, and the perimeter of the sinking groove has chamfers.

[0014] Furthermore, a flat plate is provided inside the sinking tank, and the thickness direction of the flat plate is parallel to the inward extension direction of the sinking tank.

[0015] This invention provides an emergency unlocking device and a vehicle. The emergency unlocking device includes a main body, a fixing plate, a cover plate, and an annular fastener. The main body has a mounting plate and an unlocking handle, and is fixed to the outside of a pillar cover. The fixing plate has fixing holes through which the main body is fixed to the pillar cover. The cover plate has a through hole and fits against the fixing plate to cover the fixing hole. The annular fastener fits against the cover plate, with at least a portion of the annular fastener passing through the through hole and connecting to the fixing plate. By fixing the main body to the outside of the pillar cover, it is no longer necessary to remove the pillar cover and other components during later maintenance, disassembly, and replacement of the emergency unlocking device. This improves the convenience of maintenance, saves manpower and time, and does not affect other components. Furthermore, the cover plate, fitted to the fixing plate and covering the fixing hole, ensures the cleanliness and aesthetics of the emergency unlocking device. The connection of the annular fastener through the through hole to the fixing plate facilitates later maintenance and disassembly, eliminates the need for additional mounting holes, and further enhances the cleanliness and aesthetics of the emergency unlocking device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the exploded structure of an emergency unlocking device provided in an embodiment of the present invention;

[0017] Figure 2 An exploded structural diagram from another perspective of an emergency unlocking device provided in an embodiment of the present invention;

[0018] Figure 3A schematic diagram of an emergency unlocking device provided in an embodiment of the present invention;

[0019] Figure 4 for Figure 3 A sectional view of section AA;

[0020] Figure 5 An exploded structural diagram of the emergency unlocking device and the column cover plate provided in an embodiment of the present invention;

[0021] Figure 6 An exploded structural diagram of the emergency unlocking device and the column cover plate provided in an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the emergency unlocking device and the column cover plate after installation according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the column cover structure provided in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures

[0025] 100. Emergency unlocking device; 110. Main body; 111. Mounting plate; 112. Unlocking handle; 1121. Square shaft; 113. Steel wire rope interface; 114. Electromagnet; 115. Limit switch; 116. Positioning pin; 120. Transparent plate; 121. Central circular hole; 130. Fixing plate; 131. Fixing hole; 1311. First fixing hole; 1312. Second fixing hole; 132. Connecting threaded hole; 133. Groove; 134. Positioning hole; 140. Cover plate; 141. Through hole; 150. Annular fastener; 151. Adjustment hole; 160. Screw; 161. First screw; 162. Second screw; 200. Column cover plate; 210. Recessed groove; 220. Flat plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0028] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0029] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. The term "connection," unless otherwise specified, includes both direct and indirect connections.

[0030] In specific implementations, the emergency unlocking device can be applied to any vehicle that needs to be opened in an emergency. For example, the emergency unlocking device can be applied to the emergency opening of subway car doors; for example, the emergency unlocking device can be applied to the emergency opening of urban rail train doors. For ease of explanation, the following description will use the example of the emergency unlocking device being applicable to the emergency opening of subway car doors.

[0031] In some embodiments, such as Figures 1 to 4 As shown, the emergency unlocking device 100 includes a main body 110, a fixing plate 130, a cover plate 140, and an annular fastener 150. The main body 110 has a mounting plate 111 and an unlocking handle 112, and is fixed to the outside of the column cover plate 200. The fixing plate 130 has a fixing hole 131, through which the main body 110 is fixed to the column cover plate 200. The cover plate 140 has a through hole 141, and the cover plate 140 fits against the fixing plate 130 to cover the fixing hole 131. The annular fastener 150 fits against the cover plate 140, and at least a portion of the annular fastener 150 passes through the through hole 141 and is connected to the fixing plate 130.

[0032] Specifically, the emergency unlocking device 100 is typically installed near the train doors. It is used to manually open the doors when they cannot be opened or in the event of an emergency, facilitating evacuation of passengers. The emergency unlocking device 100 includes a main body 110, which is primarily composed of a mounting plate 111, an unlocking handle 112, a wire rope interface 113, an electromagnet 114, and a limit switch 115. The mounting plate 111 has an inwardly recessed cavity, within which the unlocking handle 112 is located. Rotating the unlocking handle 112 forces the train doors open. Considering that triggering the emergency unlocking device 100 could cause the subway to automatically brake, a transparent plate 120 is also included to prevent accidental unlocking by passengers. The transparent plate 120 is located between the main body 110 and the fixed plate 130, separating the unlocking handle 112 from the outside environment. The specific material of the transparent panel 120 is not limited. For example, the transparent panel 120 can be made of PC board (polycarbonate board), also known as polycarbonate sheet, polyester sheet, or Kapron board. It is made of high-performance engineering plastic, polycarbonate (PC) resin, and features high transparency, light weight, impact resistance, sound insulation, heat insulation, flame retardancy, and aging resistance. It is a high-tech, high-performance, energy-saving, and environmentally friendly plastic sheet. It is important to emphasize that the primary feature of the transparent panel 120 is its transparency, which helps passengers locate the unlocking handle 112 at a glance. The transparent panel 120 has a central circular hole 121. When the transparent panel 120 covers the unlocking handle 112, the square shaft at the center of the unlocking handle 112 can be exposed through the central circular hole 121. Simply put, during the inspection of the emergency unlocking device 100, staff can check its safe operation without damaging the transparent panel 120 by simply inserting a four-cornered key into the square shaft and rotating it. When passengers need to open the door in an emergency, since they do not have a four-cornered key or other relevant tools, they can break the transparent panel 120 to expose the unlocking handle 112 and then rotate it by hand to open the door. To further facilitate the breaking of the transparent panel 120, an arc-shaped notch is provided at the top or other locations of the transparent panel 120. Passengers can pull on the arc-shaped notch at the top of the transparent panel 120 to break it, and then rotate the unlocking handle 112 to open the door in an emergency.

[0033] To facilitate replacement after the transparent plate 120 breaks, the main body device 110 is fixed to the outside of the column cover plate 200 using a fixing plate 130. The fixing plate 130 has fixing holes 131 through which the main body device 110 is fixed to the column cover plate 200. Any method that can fix the main body device 110 through the fixing holes 131 is acceptable. For example, the main body device 110 is fixed by passing screws 160 through the fixing holes 131. The fixing holes 131 include a first fixing hole 1311 and a second fixing hole 1312. Here, the first fixing holes 1311 are of the same type and there can be multiple of them. The second fixing holes 1312 are also of the same type and there can be multiple of them. The fixing plate 130 is a rectangular plate with four first fixing holes 1311 located near its four corners. It also has four second fixing holes 1312 located near its four corners. The mounting plate 111 also has four first fixing holes 1311 at its four corners. The screw 160 includes a first screw 161 and a second screw 162. The first screw 161 passes through both the first fixing holes 1311 on the fixing plate 130 and the mounting plate 111, thus fixing the fixing plate 130 to the mounting plate 111. The second screw 162 passes through the second fixing holes 1312 on the fixing plate 130 and is then fixed to the column cover plate 200, thus fixing both the fixing plate 130 and the mounting plate 111 to the column cover plate 200.

[0034] Considering that the fixing hole 131 may affect the aesthetics of the emergency unlocking device 100, the emergency unlocking device 100 includes a cover plate 140. The cover plate 140 fits against the fixing plate 130, thereby covering the fixing hole 131 and the screw 160 inside the fixing hole 131. For example, if the fixing plate 130 is rectangular, the cover plate 140 can also be a rectangle of the same size. The cover plate 140 has a through hole 141, which is a normal through hole. The through hole 141 is not threaded around its perimeter, so that the unlocking handle 112 can be manually rotated later. At the same time, to facilitate manual operation, instruction text can be printed on the cover plate 140. To ensure the emergency unlocking device 100 is secure, the cover plate 140 is not provided with additional connecting holes. Instead, it is fixed by an annular fastener 150. The annular fastener 150 has an annular structure, with one edge abutting against the surface of the cover plate 140, and the other side of the annular fastener 150 passing through the through hole 141 and connecting to the fixing plate 130. This fixes the cover plate 140 to the fixing plate 130. Any method that can connect the annular fastener 150 to the fixing plate 130 is acceptable. For example, the fixing plate 130 has a threaded hole 132, the size of which is approximately the same as the size of the through hole 141. Here, "approximately the same" means that the diameter difference is within 10%. The operator's hand can pass through the annular fastener 150, the cover plate 140, and the fixing plate 130 in sequence, and then pull on the arc notch at the top of the transparent plate 120 to break it. Then, the unlocking handle 112 is rotated to open the car door in an emergency. The inner wall of the connecting threaded hole 132 has an internal thread, and the outer wall of the annular fastener 150 has an external thread. The annular fastener 150 rotates and engages with the internal thread of the connecting threaded hole 132, thereby pressing the cover plate 140 to be tightened and fixed on the fixing plate 130.

[0035] Finally, for easier maintenance, the annular fastener 150 can be rotated to separate it from the fixing plate 130, and the cover plate 140 will also separate from the fixing plate 130. The fixing plate 130 can then be separated from the main body 110 by rotating the screw 160. The broken transparent plate 120 can then be removed and replaced with a new one. Afterwards, the fixing plate 130, cover plate 140, and annular fastener 150 can be installed in sequence. The entire emergency unlocking device 100 can be removed from the outside of the column cover 200 for component replacement and adjustment, without needing to disassemble the column cover 200, making it convenient, quick, and saving manpower and time.

[0036] This invention provides an emergency unlocking device and a vehicle. The emergency unlocking device includes a main body, a fixing plate, a cover plate, and an annular fastener. The main body has a mounting plate and an unlocking handle, and is fixed to the outside of a pillar cover. The fixing plate has fixing holes through which the main body is fixed to the pillar cover. The cover plate has a through hole and fits against the fixing plate to cover the fixing hole. The annular fastener fits against the cover plate, with at least a portion of the annular fastener passing through the through hole and connecting to the fixing plate. By fixing the main body to the outside of the pillar cover, it is no longer necessary to remove the pillar cover and other components during later maintenance, disassembly, and replacement of the emergency unlocking device. This improves the convenience of maintenance, saves manpower and time, and does not affect other components. Furthermore, the cover plate, fitted to the fixing plate and covering the fixing hole, ensures the cleanliness and aesthetics of the emergency unlocking device. The annular fastener's connection to the fixing plate through the through hole facilitates later maintenance and disassembly, eliminates the need for additional mounting holes, and further enhances the cleanliness and aesthetics of the emergency unlocking device.

[0037] In some embodiments, the fixing plate 130 also has a snap-fit ​​hole with a groove on its inner wall and a protrusion on its outer wall. The annular fixing member 150 engages with the fixing plate 130 via a snap-fit ​​mechanism. Specifically, the fixing plate 130 also has a snap-fit ​​hole, the size of which is approximately the same as the size of the through hole 141. Here, "approximately the same" means that the diameter difference is within 10%. The occupant's hand can pass through the annular fixing member 150, the cover plate 140, and the fixing plate 130 in sequence, and then pull on the arc notch at the top of the transparent plate 120 to break it. Then, the unlocking handle 112 is rotated to open the door in an emergency. The inner wall of the snap-fit ​​hole has a groove, and the outer wall of the annular fixing member 150 has a protrusion. The protrusion on the outer wall of the annular fixing member 150 engages with the groove on the inner wall of the snap-fit ​​hole, thereby pressing the cover plate 140 and securing it to the fixing plate 130.

[0038] In some embodiments, such as Figure 1 and Figure 3As shown, the annular fastener 150 is provided with a plurality of adjustment holes 151, which are evenly distributed on the surface of the annular fastener 150. Specifically, considering the need for a neat and aesthetically pleasing appearance, the thickness of the annular fastener 150 is relatively thin, making it inconvenient to operate directly by hand. The specific thickness of the annular fastener 150 is not limited and can be determined based on actual conditions. To facilitate the connection and fixation of the annular fastener 150 to the fixing plate 130, multiple adjustment holes 151 are provided on the annular fastener 150. Tools are inserted through the adjustment holes 151 to facilitate the rotation of the annular fastener 150. To facilitate tool operation and ensure the overall uniformity of the adjustment holes 151 of the various emergency unlocking devices 100 on the train, the number of adjustment holes 151 can be multiple and evenly spaced on the surface of the annular fastener 150. For example, if there are six adjustment holes 151 evenly spaced on the surface of the annular fastener 150, with an angle of 30 degrees between adjacent adjustment holes 151, the positions of the adjustment holes 151 will not differ significantly even if the tightening positions of the various emergency unlocking devices 100 on the train are different, resulting in a more uniform, neat, and aesthetically pleasing overall effect.

[0039] In some embodiments, such as Figure 1 and Figure 2 As shown, the fixing plate 130 has a groove 133 on the side near the main body device 110, and the transparent plate 120 is placed in the groove 133. Specifically, considering that the transparent plate 120 is clamped between the fixing plate 130 and the mounting plate 111, in order to prevent the transparent plate 120 from slipping between the fixing plate 130 and the mounting plate 111, the fixing plate 130 has a groove 133 on the side near the main body device 110. The shape of the groove 133 is the same as the shape of the transparent plate 120, and the depth of the groove 133 can also be the same as the thickness of the transparent plate 120. The transparent plate 120 is placed in the groove 133, so that part of the fixing plate 130 can directly contact the mounting plate. The 111 is fitted together, thereby preventing the transparent plate 120 from sliding between the fixed plate 130 and the mounting plate 111. For example, the thickness of the transparent plate 120 can also be slightly less than the depth of the groove 133. When the transparent plate 120 needs to be replaced, since the transparent plate 120 is not subjected to the squeezing force between the fixed plate 130 and the mounting plate 111, the transparent plate 120 can be directly pulled out from the groove 133, and then a new transparent plate 120 can be put into the groove 133. This structure does not require disassembly of any parts, making it more convenient and faster.

[0040] In some embodiments, such as Figure 1 and Figure 2As shown, the mounting plate 111 has a positioning pin 116, and the fixing plate 130 has a positioning hole 134, through which the positioning pin 116 can pass. Specifically, to facilitate the quick assembly of the emergency unlocking device 100, the fixing plate 130 is attached to the mounting plate 111, and the mounting plate 111 is provided with a positioning pin 116. The specific location of the positioning pin 116 is not limited, and the number of positioning pins 116 is also not limited. They can assist the fixing plate 130 in quick positioning, facilitating quick installation by screws 160. The fixing plate 130 and the main device 110 can be fixed to the column cover plate 200. For example, the number of positioning pins 116 is 1, and it is located at the bottom center of the mounting plate 111. Similarly, the bottom center of the fixing plate 130 has a positioning hole 134, through which the positioning pin 116 passes through the positioning hole 134, thereby quickly positioning the fixing plate 130.

[0041] This embodiment also provides a vehicle, such as Figures 5 to 8 As shown, the vehicle includes an emergency unlocking device 100 and a pillar cover 200. With the continuous improvement of people's living standards, there are new requirements for the comfort and safety of the rail transit vehicles they ride in. The pillar cover 200 is a panel on the train used to cover the outside of the pillars and shield the sliding door mechanism. The pillar cover 200 can also be called a door pillar cover. In addition, the pillar cover 200 is used to install handrails, providing support for them. Based on ergonomic design, it ensures that the train can withstand the impact force of passengers under any operating conditions, providing strong protection for passengers' safe and comfortable travel. Therefore, the pillar cover 200 needs to be made of materials with high strength and hardness. To increase the aesthetics and comfort of the vehicle, improve operating efficiency, and reduce energy consumption, lightweight designs are gradually being adopted for various components of the train. For ease of maintenance, the emergency unlocking device 100 is installed on the outer side of the column cover 200. To ensure overall aesthetics, the column cover 200 has an inwardly extending recess 210, which can be cuboid, to facilitate the fixing of the emergency unlocking device 100 within it. To further enhance the overall aesthetics, the column cover 200 is designed with a hyperboloid structure for a smoother appearance. The thickness of the emergency unlocking device 100 should be approximately equal to the depth of the recess 210 in the column cover 200 to prevent it from protruding excessively from the surface of the column cover 200, thus affecting the overall aesthetics. The recess 210 of the column cover 200 is chamfered around its perimeter to facilitate the installation and removal of the emergency unlocking device 100.

[0042] In some embodiments, such as Figure 8As shown, to better fix the emergency unlocking device 100 to the column cover plate 200, a flat plate 220 is provided in the recessed groove 210. The thickness direction of the flat plate 220 is parallel to the inward extension direction of the recessed groove 210. The shape of the flat plate 220 is roughly the same as that of the fixing plate 130. Second fixing holes 1312 are provided at the four corners of the flat plate 220. The first screw 161 passes through the first fixing hole 1311 of the fixing plate 130 and the first fixing hole 1311 of the mounting plate 111 in sequence, thereby fixing the fixing plate 130 to the mounting plate 111. The second screw 162 passes through the second fixing hole 1312 of the fixing plate 130 and the second fixing hole 1312 of the flat plate 220, thereby fixing the fixing plate 130 to the flat plate 220. Thus, the mounting plate 111 and the main device 110 are fixed to the flat plate 220, and finally the entire emergency unlocking device 100 is fixed to the column cover plate 200.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An emergency unlocking device, characterized in that, include: The main body has a mounting plate and an unlocking handle, and the main body is fixed to the outside of the column cover plate; A fixing plate has fixing holes through which the main body device is fixed to the column cover plate; A transparent plate is located between the main body device and the fixed plate, and the transparent plate separates the unlocking handle from the outside world. A cover plate having a through hole is fitted to the fixing plate to cover the fixing hole; An annular fastener fits against the cover plate, and at least a portion of the annular fastener passes through the through hole and is connected to the fixing plate. The fixing plate has a threaded hole, the inner wall of the threaded hole has an internal thread, the outer wall of the annular fastener has an external thread, and the annular fastener and the fixing plate are threaded together; or, the fixing plate has a snap-fit ​​hole, the inner wall of the snap-fit ​​hole has a slot, the outer wall of the annular fastener has a protrusion, and the annular fastener and the fixing plate are snap-fit ​​together. The transparent plate is exposed to the outside world through the connecting threaded hole or snap-fit ​​hole of the fixing plate, the through hole of the cover plate, and the annular fastener.

2. The emergency unlocking device according to claim 1, characterized in that, The annular fastener is provided with a plurality of adjustment holes, which are evenly distributed on the surface of the annular fastener.

3. The emergency unlocking device according to claim 1, characterized in that, The fixing plate has a groove on the side near the main body device, and the transparent plate is placed in the groove.

4. The emergency unlocking device according to claim 1, characterized in that, The mounting plate has a positioning pin, and the fixing plate has a positioning hole, through which the positioning pin can pass.

5. A vehicle, characterized in that, include: The emergency unlocking device as described in any one of claims 1 to 4; The column cover has an inwardly extending recessed groove, and the emergency unlocking device is fixed in the recessed groove.

6. The vehicle according to claim 5, characterized in that, The column cover plate has a hyperboloid structure, and the sinking groove has chamfers around its perimeter.

7. The vehicle according to claim 5, characterized in that, A flat plate is installed inside the sinking tank, and the thickness direction of the flat plate is parallel to the inward extension direction of the sinking tank.

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