One-piece side guard device for gangway

Abstract

The present invention relates to a one-piece side guard plate device for a through-passage, belonging to the technical field of rail transit equipment. The side guard plate device comprises a flexible guard plate, two reel assemblies respectively arranged on both sides of the flexible guard plate, and a locking assembly. The reel assembly comprises a rotating drum, a torsion plate fixedly installed in the rotating drum, and a fixed drum assembly sleeved in the rotating drum. The fixed drum assembly comprises a barrel, a ball screw, and an air spring. The barrel is sleeved in the rotating drum. The ball screw comprises a screw and a nut threadedly connected to the outer periphery of the screw. The screw is inserted into the barrel and rotatably connected to the barrel. One end of the screw extends out of the barrel and is fixedly connected to the torsion plate. The air spring is located in the barrel, one end of which is fixedly connected to the nut and the other end is fixedly connected to the barrel. The locking assembly comprises a guard plate locking tongue arranged on the flexible guard plate and a guard plate lock arranged on the rotating drum. The guard plate lock is detachably connected to the guard plate locking tongue. The side guard plate device is convenient to connect or disconnect, and has high connection and disconnection efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transportation equipment, and in particular relates to a one-piece side guard plate device for a through passage. Background Art

[0002] The through-gangway for urban rail vehicles is an important component for achieving connection and connection between two vehicles. The side guard assembly is an important component of the through-gangway. There are two optional structural types: one-piece and three-piece. The coupling and uncoupling performance of the side guard assembly directly affects the overall coupling and uncoupling efficiency of the through-gangway. Compared with the three-piece type, the one-piece side guard assembly is widely used due to its safety, reliability and overall aesthetics.

[0003] Existing one-piece side guard devices typically include a flexible guard and reels mounted at both ends of the flexible guard, which rotate to cause the flexible guard to curl. For example, the integrated tunnel disclosed in patent CN103029714A utilizes a one-piece side guard device that uses a large torsion spring to rotate the reel and maintain tension on the guard, thereby achieving curling and lateral support for the side guard. This device features a tightening mechanism mounted on a central axis mounting seat to tighten the reel. To connect and unconnect, the user first uses a special key to open the lock box outside the tightening mechanism (facilitating subsequent operation of the tightening mechanism). The tightening mechanism then uses a special handle tool to unscrew the reel (this position allows the side guard screw mounting position to be unscrewed, facilitating installation). The side guard is then secured to the reel using screws. The reel is then screwed in using a special handle tool under the action of the torsion spring, and the lock box is then locked. The uncoupling operation is performed in reverse. However, this structure takes a long time to connect and uncouple, cannot achieve rapid connection and uncoupling functions, and is also relatively heavy overall. Patent CN102267467A discloses a one-piece sidewall guard plate that uses a small torsion spring and connecting rod support to achieve rotation on both sides of the guard plate and ensure the tension of the guard plate, thereby achieving curling and lateral support of the side guard plate. The device adopts an integrated plug-in and unplug-in operation. However, due to the inward curling force on both sides of the structure and the overall weight, the connection and unplugging operations are not convenient, and the vertical buffering capacity of the structure is insufficient. Patent CN106891906A discloses an integrated side guard plate device with vertical buffering function. It is based on the above-mentioned CN102267467A and optimizes the vertical buffering structure, but it also suffers from the problem of inconvenient connection and unplugging operations.

[0004] Therefore, how to further improve the coupling and uncoupling efficiency and the convenience of operation of the one-piece side guard device is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] In view of the shortcomings of the existing one-piece side guard device in that the coupling and uncoupling operations are complicated, the present invention provides a one-piece side guard device for a through-passage, which has convenient coupling and uncoupling operations and high coupling and uncoupling efficiency.

[0006] The present invention provides a one-piece side guard plate device for a through-aisle, comprising:

[0007] Flexible guard plate;

[0008] Two reel assemblies are respectively arranged on both sides of the flexible guard plate and connected to the two sections of the vehicle body; the reel assembly includes:

[0009] rotating drum;

[0010] a torsion plate fixedly mounted in the rotating drum;

[0011] The fixed cylinder assembly is sleeved in the rotating cylinder, and the rotating cylinder is rotatable relative to the fixed cylinder assembly; the fixed cylinder assembly includes:

[0012] A cylinder body, which is sleeved in the rotating drum;

[0013] The ball screw includes a screw and a nut threadedly connected to the outer periphery of the screw; the screw is inserted into the barrel and rotatably connected to the barrel, and one end of the screw passes through the barrel and is fixedly connected to the torsion plate;

[0014] An air spring is located in the cylinder, one end of the air spring is fixedly connected to the nut, and the other end is fixedly connected to the cylinder;

[0015] The locking assembly comprises a guard plate locking tongue arranged on the flexible guard plate and a guard plate lock arranged on the rotating drum. The guard plate lock and the guard plate locking tongue are detachably connected.

[0016] In some embodiments, the guard lock includes:

[0017] A lock seat, which is fixedly mounted on the drum;

[0018] The lock core shaft is inserted into the lock seat and moves between a locking position and an unlocking position relative to the lock seat. When the lock core shaft is in the locking position, the outer end of the lock core shaft extends out of the lock seat and is inserted into the lock hole opened on the guard plate lock tongue. When the lock core shaft is in the unlocking position, the lock core shaft disengages from the lock hole.

[0019] In some embodiments, the guard plate lock further includes a driving member, which is used to drive the lock core shaft to move between a locked position and an unlocked position. The driving member is connected to the lock core shaft and extends outside the lock seat.

[0020] In some embodiments, the side guard plate device also includes a fixing component for connecting the reel assembly to the vehicle body, the fixing component including an upper mounting seat and a lower mounting seat; the reel assembly also includes an upper support connecting component and a lower support connecting component respectively connected to the upper and lower ends of the cylinder body, the upper support connecting component passes through the upper end of the rotating drum and is connected to the upper mounting seat, and the lower support connecting component passes through the lower end of the rotating drum and is connected to the lower mounting seat.

[0021] In some embodiments, the upper support connection assembly includes:

[0022] an upper support member supported on the inner wall of the drum and disposed near the upper end of the drum, the drum being rotatable relative to the upper support member;

[0023] an upper guide transmission member, which is fixedly connected between the upper support member and the cylinder;

[0024] An upper connecting shaft is arranged along the axis of the rotating drum, with its upper portion connected to the upper mounting seat, and its lower portion passes through the upper support member and is slidably connected to the upper guide transmission member so as to reciprocate relative to the upper support member along the axial direction of the rotating drum, and the upper connecting shaft is non-rotatable relative to the upper support member and the upper guide transmission member;

[0025] The lower support connection assembly includes:

[0026] a lower support member supported on the inner wall of the drum and disposed near the lower end of the drum, the drum being rotatable relative to the lower support member;

[0027] a lower guide transmission member, which is fixedly connected between the lower support member and the cylinder;

[0028] The lower connecting shaft is arranged along the axis of the rotating drum, the lower part of which is connected to the lower mounting seat, the upper part is passed through the lower support member and is slidably connected to the lower guide transmission member so as to reciprocate relative to the lower support member along the axial direction of the rotating drum, and the lower connecting shaft cannot rotate relative to the lower support member and the lower guide transmission member.

[0029] In some embodiments, the upper support member is provided with a first square hole, the upper connecting shaft includes a first square shaft segment that cooperates with the first square hole, and the first square shaft segment is passed through the first square hole; the lower support member is provided with a second square hole, the lower connecting shaft includes a second square shaft segment that cooperates with the second square hole, and the second square shaft segment is passed through the second square hole.

[0030] In some embodiments, the upper guide transmission member is provided with an upper guide slide, and the upper connecting shaft is equipped with an upper roller that cooperates with the upper guide slide; the lower guide transmission member is provided with a lower guide slide, and the lower connecting shaft is equipped with a lower roller that cooperates with the lower guide slide.

[0031] In some embodiments, the upper support connection assembly also includes an upper support elastic member, which is supported between the upper connection shaft and the upper guide transmission member, and the upper support elastic member is elastically deformed with the reciprocating motion of the upper connection shaft; the lower support connection assembly also includes a lower support elastic member, which is supported between the lower connection shaft and the lower guide transmission member, and the lower support elastic member is elastically deformed with the reciprocating motion of the lower connection shaft.

[0032] In some embodiments, the upper support connection assembly also includes an upper fixed block fixedly connected to the upper guide transmission member; the upper connecting shaft also includes a first circular shaft segment connected to the lower end of the first square shaft segment, and the lower end of the first circular shaft segment is passed through the upper fixed block; the upper support elastic member includes an upper support spring sleeved on the outside of the first circular shaft segment, and the upper support spring is supported between the upper fixed block and the lower end of the first square shaft segment; the lower support connection assembly also includes a lower fixed block fixedly connected to the lower guide transmission member; the lower connecting shaft also includes a second circular shaft segment connected to the upper end of the second square shaft segment, and the upper end of the second circular shaft segment is passed through the lower fixed block; the lower support elastic member includes a lower support spring sleeved on the outside of the second circular shaft segment, and the lower support spring is supported between the lower fixed block and the upper end of the second square shaft segment.

[0033] In some embodiments, the upper connecting shaft is provided with a locking piece, the upper mounting seat is provided with a through hole for the upper end of the upper connecting shaft to pass through and a locking groove engaged with the locking piece; the lower mounting seat includes a fixed seat for connecting to the vehicle body and a rotating seat hinged to the fixed seat, the rotating seat is provided with a positioning pin, and the lower connecting shaft is provided with a positioning hole matching the positioning pin.

[0034] Compared with the prior art, the advantages and positive effects of the present invention are:

[0035] 1. The one-piece side guard plate device for a through-passage provided by the present invention has a fixed drum assembly provided in the drum assembly. The air spring and ball screw in the fixed drum assembly cooperate to achieve the torsion of the drum and ensure the tension of the flexible guard plate, thereby achieving the curling and lateral support of the flexible guard plate.

[0036] 2. The one-piece side guard device for a gangway provided by the present invention utilizes a locking assembly to coordinate the inflation and deflating of the air spring in the fixed drum assembly to achieve the in and out rotation of the drum assembly, thereby quickly achieving the connection and disconnection of the side guard device. This effectively improves the efficiency of the connection and disconnection operations, reduces operation time, and reduces labor intensity, making installation, inspection, and maintenance easier.

[0037] 3. The one-piece side guard plate device for the gangway provided by the present invention is designed with two quick release modes: lateral release and overall pull-out release, which is more conducive to achieving quick release. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0039] Figure 1 This is a schematic structural diagram of an embodiment of a one-piece side guard plate device for a through-passage according to the present invention;

[0040] Figure 2 Schematic diagram of the assembly structure of the flexible guard plate, the reel assembly and the locking component in one embodiment of the one-piece side guard plate device for a through-passage according to the present invention;

[0041] Figure 3 Schematic diagram of the structure of the flexible guard plate in one embodiment of the one-piece side guard plate device for a through-passage of the present invention;

[0042] Figure 4 Schematic diagram of the structure of the locking assembly in the locked state in one embodiment of the one-piece side guard plate device for a through-passage according to the present invention;

[0043] Figure 5 A fully cutaway perspective view of a locking assembly in one embodiment of a one-piece side guard device for a through-passageway according to the present invention;

[0044] Figure 6 A perspective view of a reel assembly in one embodiment of a one-piece side guard plate device for a through-passage according to the present invention;

[0045] Figure 7 A fully cutaway perspective view of a reel assembly in one embodiment of a one-piece side guard plate device for a through-passage according to the present invention;

[0046] Figure 8 A full cross-sectional front view of a reel assembly in one embodiment of a one-piece side guard plate device for a through-passage according to the present invention;

[0047] Figure 9 for Figure 7 A partial enlarged view of point A in the middle;

[0048] Figure 10 This is a schematic diagram of the assembly structure of the upper support connection assembly, the rotating drum, and the fixed drum assembly in one embodiment of the one-piece side guard plate device for a through-passage of the present invention;

[0049] Figure 11 This is a schematic structural diagram of an upper support connection assembly in one embodiment of a one-piece side guard plate device for a through-passage according to the present invention;

[0050] Figure 12 This is a structural schematic diagram of the upper support connection assembly after removing the upper guide transmission member in one embodiment of the one-piece side guard plate device for a through-passage of the present invention;

[0051] Figure 13 This is a schematic diagram of the assembly structure of the upper guide transmission member and the upper connecting shaft in one embodiment of the one-piece side guard plate device for a through-passage according to the present invention;

[0052] Figure 14 This is a schematic diagram of the assembly structure of the lower support connection assembly, the rotating drum, and the fixed drum assembly in one embodiment of the one-piece side guard plate device for a through-passage of the present invention;

[0053] Figure 15 This is a schematic structural diagram of a lower support connection assembly in one embodiment of a one-piece side guard plate device for a through-passage according to the present invention;

[0054] Figure 16 This is a structural schematic diagram of the lower support connection assembly after removing the lower guide transmission member in one embodiment of the one-piece side guard plate device for a through-passage of the present invention;

[0055] Figure 17 This is a schematic diagram of the assembly structure of the lower guide transmission member and the lower connecting shaft in one embodiment of the one-piece side guard plate device for a through-passage according to the present invention;

[0056] Figure 18 This is a schematic diagram of the assembly structure of the upper mounting seat and the upper end of the reel assembly in one embodiment of the one-piece side guard plate device for a through-passage according to the present invention;

[0057] Figure 19 A schematic structural diagram of an upper mounting seat in one embodiment of a one-piece side guard plate device for a through-passage according to the present invention;

[0058] Figure 20 This is a schematic diagram of the assembly structure of the upper connecting shaft and the locking member in one embodiment of the one-piece side guard plate device for a through-passage according to the present invention;

[0059] Figure 21 This is a schematic diagram of the assembly structure of the lower mounting seat and the lower end of the reel assembly in one embodiment of the one-piece side guard plate device for a through-passage of the present invention;

[0060] Figure 22 A schematic structural diagram of a lower mounting seat in one embodiment of a one-piece side guard plate device for a through-passage according to the present invention;

[0061] Figure 23 This is a schematic diagram of the partial structure of the lower end of the lower connecting shaft in one embodiment of the one-piece side guard plate device for a through-passage according to the present invention;

[0062] Figure 24 This is a schematic diagram of the installation of an embodiment of a one-piece side guard plate device for a through-passage according to the present invention.

[0063] In the picture:

[0064] 1. Flexible guard plate; 2. Roller assembly; 3. Locking assembly; 4. Fixing assembly; 5. Stop bar;

[0065] 21. Rotating drum; 22. Torsion plate; 23. Fixed cylinder assembly; 24. Upper support connecting assembly; 25. Lower support connecting assembly; 26. Inflating and exhausting pipes; 27. Locking piece;

[0066] 231, cylinder; 232, ball screw; 2321, screw; 2322, nut; 233, air spring;

[0067] 241, upper support member; 242, upper connecting shaft; 2421, first square shaft segment; 2422, first circular shaft segment; 2423, positioning portion; 243, upper guide transmission member; 2431, upper guide slide; 244, upper roller; 245, upper fixing block; 246, upper support spring;

[0068] 251. Lower support member; 252. Lower connecting shaft; 2521. Second square shaft segment; 2522. Second circular shaft segment; 2523. Flange; 2524. Positioning hole; 2525. Positioning protrusion; 253. Lower guide transmission member; 2531. Lower guide slideway; 254. Lower roller; 255. Lower fixing block; 256. Lower support spring;

[0069] 271, locking rod; 272, locking spring; 2721, limiting portion; 273, anti-dropping block;

[0070] 31. Guard plate lock tongue; 311. Lock hole; 32. Guard plate lock; 321. Lock seat; 3211. Inverted U-shaped slide; 322. Lock core shaft; 323. Handle; 324. Tension spring;

[0071] 41. Upper mounting seat; 411. Locking slot; 412. Through hole; 413. Bayonet; 42. Lower mounting seat; 421. Fixed seat; 422. Rotating seat; 4221. Limiting hole; 423. Elastic pressing piece; 424. Positioning pin. DETAILED DESCRIPTION

[0072] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0073] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0074] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0075] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0076] As attached Figures 1-9As shown, in an illustrative embodiment of a one-piece side guard plate device for a through-tunnel of the present invention, the one-piece side guard plate device for a through-tunnel includes a flexible guard plate 1, a reel assembly 2 and a locking assembly 3; wherein, there are two reel assemblies 2 (the two reel assemblies 2 are symmetrically arranged), which are respectively arranged on the left and right sides of the flexible guard plate 1, and are respectively connected to the two sections of the vehicle body, and the reel assembly 2 includes a rotating drum 21, a torsion plate 22 and a fixed drum assembly 23; the rotating drum 21 drives the flexible guard plate 1 to curl by rotation, and its axis is arranged in the vertical direction; the torsion plate 22 is used to transmit torque to the rotating drum 21, and it is fixedly installed in the rotating drum 21; the fixed drum assembly 23 is used to provide rotational power to the rotating drum 21, and it is sleeved in the rotating drum 21, and the rotating drum 21 is rotatable relative to the fixed drum assembly 23, and the fixed drum assembly 23 is used to provide rotational power to the rotating drum 21. Component 23 includes a barrel 231, a ball screw 232, and an air spring 233. The barrel 231 is sleeved within the rotating drum 21. The ball screw 232 includes a screw 2321 and a nut 2322 threadedly connected to the outer periphery of the screw 2321. The screw 2321 passes through the barrel 231 and is rotatably connected to the barrel 231. One end of the screw 2321 passes through the barrel 231 and is fixedly connected to the torsion plate 22. The air spring 233 is located within the barrel 231, one end of which is fixedly connected to the nut 2322 and the other end is fixedly connected to the barrel 231. The locking assembly 3 is used to lock and connect the reel assembly 2 and the flexible guard plate 1. It includes a guard plate lock tongue 31 provided on the flexible guard plate 1 and a guard plate lock 32 provided on the rotating drum 21. The guard plate lock 32 is detachably connected to the guard plate lock tongue 31. It should be noted that the thread directions of the screws 2321 of the two reel assemblies 2 are opposite. It should also be noted that the air spring 233 is connected to a charging and discharging pipe 26 for inflating the air spring 233 or discharging the gas in the air spring 233. In addition, it should be noted that the rotating drum 21, the torsion plate 22, the barrel 231 and the screw 2321 are coaxially arranged to ensure the transmission of the torsional torque.

[0077] The working principle of the above-mentioned one-piece side guard plate device for the through channel is as follows: in the connected state, the air spring 233 of the fixed cylinder assembly 23 is in the inflated state, and the vertical supporting force of the air spring 233 in the inflated state is converted into a torsional torque through the coordinated movement of the screw 2321 and the nut 2322 in the ball screw 232. The torsional torque output by the ball screw 232 is transmitted to the rotating drum 21 through the torsion plate 22, causing the rotating drum 21 to rotate. Since the thread directions of the screws 2321 of the two reel assemblies 2 are opposite, the rotating drums 21 of the two reel assemblies 2 rotate in opposite directions, thereby ensuring the tension of the flexible guard plate 1 through the rotation of the two reels 21, thereby realizing the curling and lateral support of the flexible guard plate 1; when connected, the guard plate The connection between the lock 32 and the guard plate lock tongue 31 connects the two drum assemblies 2 to the flexible guard plate 1 respectively, and the two drum assemblies 2 are connected to the two car bodies respectively. The air springs 233 of the two drum assemblies 2 are inflated, and the connection operation of the side guard plate device can be completed; when uncoupling, the air spring 233 of the drum assembly 2 on one side is deflated, and the torsional force of the drum 21 on that side is released. The flexible guard plate 1 is wound around the drum 21 on the side where the torsional force of the drum 21 on the other side is not released, so that the drum 21 on the side where the torsional force is released is rotated out relative to the flexible guard plate 1, so that the locking component 3 at the connection between the flexible guard plate 1 and the drum 21 is exposed. At this time, the side guard plate device can be quickly uncoupled by disassembling the guard plate lock 32 and the guard plate lock tongue 31.

[0078] The aforementioned one-piece side shield device for the tunnel features a fixed drum assembly 23 within its reel assembly 2. The air spring 233 and ball screw 232 within the fixed drum assembly 23 cooperate to achieve torsion of the rotating drum 21 and maintain tension on the flexible shield 1, providing both curling and lateral support for the flexible shield 1. Furthermore, the one-piece side shield device for the tunnel utilizes a locking assembly 3, which, in conjunction with the inflation and deflation of the air spring 233 within the fixed drum assembly 23, allows the reel assembly 2 to be screwed in and out, enabling rapid coupling and uncoupling of the side shield device. This effectively improves coupling and uncoupling efficiency, reduces operation time, and reduces labor intensity, facilitating installation, inspection, and maintenance.

[0079] like Figure 4 and Figure 5As shown, in this embodiment, the guard plate lock 32 specifically includes a lock seat 321 and a lock core shaft 322; the lock seat 321 is fixedly mounted on the rotary drum 21; the lock core shaft 322 is inserted into the lock seat 321, and the lock core shaft 322 moves between a locked position and an unlocked position relative to the lock seat 321; when the lock core shaft 322 is in the locked position, the outer end of the lock core shaft 322 extends out of the lock seat 321 and is inserted into the lock hole 311 provided on the guard plate lock tongue 31; when the lock core shaft 322 is in the unlocked position, the lock core shaft 322 is removed from the lock hole 311. It should be noted that the rotary drum 21 is provided with a lock tongue insertion hole for the guard plate lock tongue 31 to pass through, and the guard plate lock tongue 31 passes through the lock tongue insertion hole to extend into the rotary drum 21, and the guard plate lock 32 is arranged on the inner wall of the rotary drum 21 and is arranged close to the guard plate lock tongue 31.

[0080] In order to facilitate the control of the movement of the lock core shaft 322 between the locking position and the unlocking position, so as to facilitate the locking and unlocking operations, the guard plate lock 32 also includes a driving member, which is used to drive the lock core shaft 322 to move between the locking position and the unlocking position. The driving member is connected to the lock core shaft 322 and extends outside the lock seat 321. Specifically, Figure 4 and Figure 5 As shown, in this embodiment, the driving member includes a handle 323 connected to the outer periphery of the lock core shaft 322, and the lock seat 321 is provided with an inverted U-shaped slide 3211 for limiting the movement trajectory of the handle 323. The handle 323 passes through the inverted U-shaped slide 3211 and moves along the inverted U-shaped slide 3211. The two ends of the inverted U-shaped slide 3211 correspond to the locking position and the unlocking position respectively. The outer periphery of the lock core shaft 322 is also provided with a tightening spring 324. Through the elastic force of the tightening spring 324, the handle 323 is locked at the end of the inverted U-shaped slide 3211 when it moves to the two ends of the inverted U-shaped slide 3211, thereby locking the lock core shaft 322 in the locking position or the unlocking position. When the lock core shaft 322 is locked, the lock core shaft 322 can be locked by manually tossing the handle 323 so that the handle 323 can slide to the end of the inverted U-shaped slide 3211 corresponding to the locking position. The lock core shaft 322 can be locked under the elastic force of the tensioning spring 324; when unlocking, it is only necessary to manually toggle the handle 323 so that the handle 323 can slide to the end of the inverted U-shaped slide 3211 corresponding to the unlocking position, so that the lock core shaft 322 can be disengaged from the lock hole 311. When the guard plate lock tongue 31 is pulled out from the lock tongue insertion hole of the rotating drum 21, the handle 323 can be manually toggled to make the handle 323 rotate and reset (that is, return to the end of the inverted U-shaped slide 3211 corresponding to the locking position).

[0081] In order to facilitate the connection of the reel assembly 2 to the vehicle body, as shown in FIG. Figure 1 、 Figure 7-Figure 9As shown, the side guard device also includes a fixing assembly 4 for connecting the drum assembly 2 to the vehicle body, and the fixing assembly 4 includes an upper mounting seat 41 and a lower mounting seat 42; the drum assembly 2 also includes an upper support connection assembly 24 and a lower support connection assembly 25 respectively connected to the upper and lower ends of the drum body 231, the upper support connection assembly 24 passes through the upper end of the rotating drum 21 and is connected to the upper mounting seat 41, and the lower support connection assembly 25 passes through the lower end of the rotating drum 21 and is connected to the lower mounting seat 42. It should be noted that in order to shield the connection between the side guard device and the vehicle body, as shown in FIG. Figure 1 As shown, the side guard plate device further includes baffles 5 provided on both sides of the flexible guard plate 1 , and the baffles 5 are used to block the gap between the flexible guard plate 1 and the vehicle body.

[0082] like Figure 8 、 Figure 10-13 As shown, in this embodiment, the upper support connection assembly 24 includes an upper support member 241, an upper guide transmission member 243 and an upper connecting shaft 242; the upper support member 241 is supported on the inner wall of the rotating drum 21 and is arranged close to the upper end of the rotating drum 21, and the rotating drum 21 can rotate relative to the upper support member 241; the upper end of the upper guide transmission member 243 is fixedly connected to the upper support member 241, and the lower end is fixedly connected to the cylinder body 231; the upper connecting shaft 242 is arranged along the axis of the rotating drum 21, and its upper part is connected to the upper mounting seat 41, and the lower part is passed through the upper support member 241 and slidably connected to the upper guide transmission member 243, so as to reciprocate relative to the upper support member 241 along the axial direction of the rotating drum 21, and the reciprocating motion of the upper connecting shaft 242 is guided by the upper guide transmission member 243, and the upper connecting shaft 242 cannot rotate relative to the upper support member 241 and the upper guide transmission member 243 to transmit torsional torque. Similarly, as Figure 8 、 Figure 14-17 As shown, in this embodiment, the lower support connection assembly 25 includes a lower support member 251, a lower guide transmission member 253 and a lower connecting shaft 252; the lower support member 251 is supported on the inner wall of the rotating drum 21 and is arranged near the lower end of the rotating drum 21, and the rotating drum 21 can rotate relative to the lower support member 251; the lower end of the lower guide transmission member 253 is fixedly connected to the lower support member 251, and the upper end is fixedly connected to the cylinder body 231; the lower connecting shaft 252 is arranged along the axis of the rotating drum 21, and its lower part is connected to the lower mounting seat 42, and the upper part is passed through the lower support member 251 and is slidably connected to the lower guide transmission member 253, so as to reciprocate relative to the lower support member 251 along the axial direction of the rotating drum 21, and guide the reciprocating movement of the lower connecting shaft 252 through the lower guide transmission member 253, and the lower connecting shaft 252 cannot rotate relative to the lower support member 251 and the lower guide transmission member 253 to transmit torsional torque. The upper support connection assembly 24 and the lower support connection assembly 25 of the above structure can transmit the torsional torque from the upper and lower ends of the fixed cylinder assembly 23, and at the same time enable the rotating cylinder 21 and the fixed cylinder assembly 23 to move up and down between the upper mounting seat 41 and the lower mounting seat 42 to adapt to the up and down bumps during the operation of the vehicle.

[0083] like Figure 12 As shown, in this embodiment, the upper support member 241 is provided with a first square hole, and the upper connecting shaft 242 includes a first square shaft segment 2421 that cooperates with the first square hole. The first square shaft segment 2421 is inserted into the first square hole. The cooperation between the first square shaft segment 2421 and the first square hole can effectively prevent the upper connecting shaft 242 from rotating relative to the upper support member 241, thereby ensuring the transmission of torsional torque. Similarly, Figure 16 As shown, in this embodiment, the lower support member 251 defines a second square hole, and the lower connecting shaft 252 includes a second square shaft segment 2521 that cooperates with the second square hole. The second square shaft segment 2521 is inserted into the second square hole. The cooperation between the second square shaft segment 2521 and the second square hole effectively prevents the lower connecting shaft 252 from rotating relative to the lower support member 251, thereby ensuring the transmission of torsional torque.

[0084] like Figure 12 and Figure 13 As shown, in this embodiment, the upper guide transmission member 243 is provided with an upper guide slide 2431, and the upper connecting shaft 242 is provided with an upper roller 244 that cooperates with the upper guide slide 2431. The upper roller 244 slides along the upper guide slide 2431 to guide the reciprocating motion of the upper connecting shaft 242. It should be noted that, as Figure 13 As shown, in this embodiment, a hollow tube with a cross-shaped cross section is used as the upper guide transmission member 243, and the four protruding parts thereof respectively form upper guide slideways 2431; there are four upper rollers 244, which are respectively arranged on the four sides of the first square shaft section 2421 of the upper connecting shaft 242, and the four upper rollers 244 are respectively arranged in the four upper guide slideways 2431. Similarly, as Figure 16 and Figure 17 As shown, the lower guide transmission member 253 is provided with a lower guide slide 2531, and the lower connecting shaft 252 is provided with a lower roller 254 that matches the lower guide slide 2531. The lower roller 254 slides along the lower guide slide 2531 to guide the reciprocating motion of the lower connecting shaft 252. It should be noted that, as Figure 17 As shown, in this embodiment, a hollow tube with a cross-shaped cross-section is specifically used as the lower guide transmission member 253, and the four protruding parts thereof respectively form lower guide slides 2531; there are four lower rollers 254, and the four lower rollers 254 are respectively arranged on the four side surfaces of the second square shaft section 2521 of the lower connecting shaft 252, and the four lower rollers 254 are respectively arranged in the four lower guide slides 2531.

[0085] In order to achieve the vertical buffer performance of the side guard device, such as Figure 8 、 Figure 12 and Figure 16As shown, the upper support connection assembly 24 further includes an upper support elastic member, which is supported between the upper connection shaft 242 and the upper guide transmission member 243, and elastically deforms with the reciprocating motion of the upper connection shaft 242. The lower support connection assembly 25 further includes a lower support elastic member, which is supported between the lower connection shaft 252 and the lower guide transmission member 253, and elastically deforms with the reciprocating motion of the lower connection shaft 252. When the rotating drum 21 and the fixed drum assembly 23 move up and down (i.e., vertically) between the upper mounting seat 41 and the lower mounting seat 42 to accommodate the bumps of the vehicle, the cooperation between the upper support elastic member and the lower support elastic member can effectively ensure the vertical buffering performance of the side guard assembly, thereby improving the force applied to the side guard assembly.

[0086] Specifically, such as Figure 12 As shown, in this embodiment, the upper support connection assembly 24 further includes an upper fixed block 245 fixedly connected to the upper guide transmission member 243; the upper connecting shaft 242 further includes a first circular shaft segment 2422 connected to the lower end of the first square shaft segment 2421, and the lower end of the first circular shaft segment 2422 is passed through the upper fixed block 245; the upper support elastic member includes an upper support spring 246 sleeved on the outside of the first circular shaft segment 2422, and the upper support spring 246 is supported between the upper fixed block 245 and the lower end of the first square shaft segment 2421; Figure 16 As shown, the lower support connection assembly 25 also includes a lower fixing block 255 fixedly connected to the lower guide transmission member 253; the lower connecting shaft 252 also includes a second circular shaft segment 2522 connected to the upper end of the second square shaft segment 2521, the upper end of the second circular shaft segment 2522 passing through the lower fixing block 255; the lower support elastic member includes a lower support spring 256 sleeved on the exterior of the second circular shaft segment 2522, and the lower support spring 256 is supported between the lower fixing block 255 and the upper end of the second square shaft segment 2521. In this embodiment, the cooperation between the upper support spring 246 and the lower support spring 256 achieves vertical buffering of the side guard assembly.

[0087] Regarding the connection between the upper mounting seat 41 and the upper connecting shaft 242, it should be noted that Figures 18-24 As shown, the upper connecting shaft 242 is provided with a locking member 27, the upper mounting seat 41 is provided with a through hole 412 for the upper end of the upper connecting shaft 242 to pass through, and a locking groove 411 engaged with the locking member 27; the lower mounting seat 42 includes a fixed seat 421 for connecting to the vehicle body and a rotating seat 422 hinged to the fixed seat 421, the rotating seat 422 is provided with a positioning pin 424, and the lower connecting shaft 252 is provided with a positioning hole 2524 that cooperates with the positioning pin 424. Figure 24As shown, when the side guard device is connected to the vehicle body, the reel assembly 2 and the flexible guard plate 1 are first connected together through the locking assembly 3. When the reel assembly 2 and the flexible guard plate 1 are in an inclined state, the positioning hole 2524 of the lower connecting shaft 252 of the reel assembly 2 is inserted into the positioning pin 424 of the lower mounting seat 42, and the reel assembly 2 and the flexible guard plate 1 are then pushed into alignment, so that the upper end of the upper connecting shaft 242 of the reel assembly 2 passes through the through hole 412 of the upper mounting seat 41. Then, by snapping the locking member 27 provided on the outer periphery of the upper connecting shaft 242 into the locking groove 411 of the upper mounting seat 41, the side guard device can be quickly connected to the vehicle body. When emergency quick release is required, the locking member 27 can also be pulled out from the locking groove 411 of the upper mounting seat 41, and the reel assembly 2 and the flexible guard plate 1 can be pulled out of the lower mounting seat 42 as a whole, thereby achieving the overall pull-out release of the side guard device. Compared to the aforementioned lateral release operation, which involves venting the air spring 233 to laterally unlock the locking assembly 3 between the flexible guard plate 1 and the reel assembly 2, the integral pull-out release is faster but requires more manual effort. The side guard device provided in this embodiment offers both lateral release and integral pull-out release, further facilitating rapid release.

[0088] Specifically, such as Figure 19 As shown, in this embodiment, the locking groove 411 is provided on the side of the upper mounting seat 41, the through hole 412 is provided on the top of the upper mounting seat 41 and is communicated with the locking groove 411, and the upper mounting seat 41 is further provided with a bayonet 413 for the upper connecting shaft 242 to be snapped into, the bayonet 413 is located below the locking groove 411 and is communicated with the locking groove 411; Figure 20 As shown, the locking member 27 includes a locking rod 271, one end of which is sleeved on the outer circumference of the upper connecting shaft 242. The locking rod 271 can rotate relative to the upper connecting shaft 242 so that the end of the locking rod 271 away from the upper connecting shaft 242 is engaged with or disengaged from the locking groove 411. During the coupling operation, the upper connecting shaft 242 is engaged with the bayonet 413 of the upper mounting seat 41, so that the upper end of the upper connecting shaft 242 passes through the through hole 412 of the upper mounting seat 41, and the locking rod 271 is rotated so that the locking rod 271 is engaged with the locking groove 411. The coupling operation can be quickly completed. When uncoupling, the locking rod 271 can be operated in the reverse direction to achieve uncoupling.

[0089] In order to improve the reliability of the locking connection between the locking rod 271 and the locking groove 411, as shown in FIG. Figure 18 and Figure 20As shown, the locking member 27 further includes a locking spring 272. One end of the locking spring 272 is sleeved around the outer circumference of the upper connecting shaft 242 and is located below the locking rod 271. The end of the locking spring 272 away from the upper connecting shaft 242 is bent away from the locking rod 271. The locking spring 272 rotates synchronously with the locking rod 271 relative to the upper connecting shaft 242, and the bent end of the locking spring 272 engages or disengages from the locking slot 411 synchronously with the locking rod 271. When the locking rod 271 is coupled, the locking rod 271 and the locking spring 272 are both engaged in the locking slot 411 of the upper mounting seat 41. Since the locking spring 272 is bent away from the locking rod 271, the locking rod 271 and the locking spring 272 are supported in the locking slot 411, thereby ensuring the reliability of the coupling. To release the lock, simply pinch the locking spring 272 toward the locking rod 271 and rotate it relative to the upper connecting shaft 242 away from the upper mounting seat 41. This will cause the locking rod 271 and the locking spring 272 to disengage from the locking slot 411. The locking rod 271 is then pressed downward to move the upper connecting shaft 242 downward, causing the upper end of the upper connecting shaft 242 to disengage from the through hole 412 of the upper mounting seat 41. Release is achieved. It is understood that the locking spring 272 and the locking rod 271 can also be arranged in the opposite direction.

[0090] In order to avoid misalignment between the locking spring 272 and the locking rod 271, Figure 20 As shown, a stopper 2721 is provided on the side of the locking spring 272 facing the locking rod 271. The stopper 2721 is located at the bent end of the locking spring 272, and two stoppers 2721 are located on either side of the locking rod 271. By constraining the locking rod 271 between the two stoppers 2721 of the locking spring 272, misalignment between the locking spring 272 and the locking rod 271 can be effectively avoided.

[0091] In order to facilitate the upper connecting shaft 242 to be accurately snapped into the snap-in 413 of the upper mounting seat 41, as shown in FIG. Figures 18-20 As shown, the upper connecting shaft 242 is provided with a positioning portion 2423. The positioning portion 2423 is located below the locking member 27 and abuts against the locking member 27. The positioning portion 2423 is engaged with the bayonet 413. The cooperation between the positioning portion 2423 and the bayonet 413 of the upper mounting seat 41 allows the upper connecting shaft 242 to be quickly engaged with the bayonet 413, thereby improving the connection efficiency.

[0092] In order to prevent the locking rod 271 from being separated from the upper connecting shaft 242, as shown in FIG. Figure 20As shown, a limiting groove is defined on the outer periphery of the upper connecting shaft 242. The locking member 27 further includes an anti-slip block 273, which is sleeved around the outer periphery of the upper connecting shaft 242 and engages with the limiting groove. The anti-slip block 273 is located above the locking rod 271 and abuts against the locking rod 271. The anti-slip block 273 blocks the locking rod 271, effectively preventing the locking rod 271 from separating from the upper connecting shaft 242 and facilitating assembly of the locking rod 271 with the upper connecting shaft 242.

[0093] Regarding the connection between the lower mounting seat 42 and the lower connecting shaft 252, it should be noted that Figure 21-23 As shown, in this embodiment, a flange portion 2523 is provided on the outer periphery of the lower end of the lower connecting shaft 252. The lower mounting seat 42 further includes an elastic pressing piece 423 for pressing the flange portion 2523 against the rotating seat 422. The elastic pressing piece 423 is connected to the fixed seat 421. The elastic pressing piece 423 presses the flange portion 2523 of the lower connecting shaft 252 against the rotating seat 422, thereby tightly connecting the lower connecting shaft 252 and the lower mounting seat 42, effectively preventing the lower connecting shaft 252 from detaching from the lower mounting seat 42.

[0094] In order to prevent the lower connecting shaft 252 from rotating relative to the lower mounting seat 42, as shown in FIG. Figure 22 and Figure 23 As shown, the bottom of the flange portion 2523 is provided with a limiting protrusion 2525, and the rotating seat 422 is provided with a limiting hole 4221 that matches the limiting protrusion 2525. The cooperation between the limiting protrusion 2525 provided on the bottom of the lower connecting shaft 252 and the limiting hole 4221 provided on the lower mounting seat 42 can effectively prevent the lower connecting shaft 252 from rotating relative to the lower mounting seat 42.

[0095] Through the description of multiple embodiments of the one-piece side guard plate device for a tunnel of the present invention, it can be seen that the one-piece side guard plate device for a tunnel of the present invention has at least one or more of the following advantages:

[0096] 1. The one-piece side guard plate device for a through-passage provided by the present invention has a fixed drum assembly 23 provided in the drum assembly 2. The air spring 233 and the ball screw 232 in the fixed drum assembly 23 cooperate to achieve the torsion of the drum 21 and ensure the tension of the flexible guard plate 1, thereby achieving the curling and lateral support of the flexible guard plate 1.

[0097] 2. The one-piece side guard device for a gangway provided by the present invention utilizes a locking assembly 3 to coordinate the inflation and deflation of the air spring 233 in the fixed drum assembly 23, thereby enabling the reel assembly 2 to be screwed in and out. This allows for rapid coupling and uncoupling of the side guard device, effectively improving coupling and uncoupling efficiency, reducing operation time, and reducing labor intensity, making installation, inspection, and maintenance easier.

[0098] 3. The one-piece side guard plate device for the gangway provided by the present invention is designed with two quick release modes: lateral release and overall pull-out release, which is more conducive to achieving quick release.

[0099] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0100] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to preferred embodiments, persons skilled in the art should understand that the specific implementation methods of the present invention may still be modified or some technical features may be replaced by equivalents without departing from the spirit of the technical solutions of the present invention, and all of these should fall within the scope of the technical solutions claimed for protection by the present invention.

Claims

1. A one-piece side guard plate device for a gangway, characterized in that: include: Flexible guard plate; Two reel assemblies are respectively arranged on both sides of the flexible guard plate and connected to the two sections of the vehicle body; The reel assembly comprises: rotating drum; a torsion plate fixedly mounted in the rotating drum; A fixed cylinder assembly is sleeved in the rotating cylinder, and the rotating cylinder is rotatable relative to the fixed cylinder assembly; the fixed cylinder assembly includes: a cylinder body, which is sleeved in the rotating cylinder; The ball screw comprises a screw and a nut threadedly connected to the outer periphery of the screw; the screw is passed through the barrel and rotatably connected to the barrel, and one end of the screw passes through the barrel and is fixedly connected to the torsion plate; an air spring located in the cylinder, one end of which is fixedly connected to the nut and the other end of which is fixedly connected to the cylinder; the air spring is connected to a filling and exhaust pipe for inflating the air spring or exhausting the gas in the air spring; The locking assembly comprises a guard plate locking tongue arranged on the flexible guard plate and a guard plate lock arranged on the rotating drum, wherein the guard plate lock is detachably connected to the guard plate locking tongue.

2. The one-piece side guard plate device for a through-passage according to claim 1, characterized in that: The guard plate lock comprises: a lock seat, which is fixedly mounted on the rotating drum; A lock core shaft is provided in the lock seat, and the lock core shaft moves between a locking position and an unlocking position relative to the lock seat; when the lock core shaft is in the locking position, the outer end of the lock core shaft extends out of the lock seat and is inserted into the lock hole opened on the guard plate lock tongue; when the lock core shaft is in the unlocking position, the lock core shaft disengages from the lock hole.

3. The one-piece side guard plate device for a through-passage according to claim 2, characterized in that: The guard plate lock also includes a driving member, which is used to drive the lock core shaft to move between the locking position and the unlocking position. The driving member is connected to the lock core shaft and extends outside the lock seat.

4. The one-piece side guard plate device for a through-passage according to claim 1, characterized in that: The side guard plate device also includes a fixing component for connecting the drum assembly to the vehicle body, and the fixing component includes an upper mounting seat and a lower mounting seat; the drum assembly also includes an upper support connection component and a lower support connection component respectively connected to the upper end and lower end of the drum body, the upper support connection component passes through the upper end of the rotating drum and is connected to the upper mounting seat, and the lower support connection component passes through the lower end of the rotating drum and is connected to the lower mounting seat.

5. The one-piece side guard plate device for a through-aisle according to claim 4, characterized in that: The upper support connection assembly includes: an upper support member supported on the inner wall of the rotating drum and disposed near the upper end of the rotating drum, wherein the rotating drum is rotatable relative to the upper support member; an upper guide transmission member, which is fixedly connected between the upper support member and the cylinder; an upper connecting shaft, the upper connecting shaft being arranged along the axis of the rotating drum, the upper portion of the upper connecting shaft being connected to the upper mounting seat, the lower portion of the upper connecting shaft being passed through the upper support member and being slidably connected to the upper guide transmission member so as to reciprocate relative to the upper support member along the axial direction of the rotating drum, and the upper connecting shaft being non-rotatable relative to the upper support member and the upper guide transmission member; The lower support connection assembly includes: a lower support member supported on the inner wall of the rotating drum and disposed near the lower end of the rotating drum, wherein the rotating drum is rotatable relative to the lower support member; a lower guide transmission member, which is fixedly connected between the lower support member and the cylinder; A lower connecting shaft is arranged along the axis of the rotating drum, the lower portion of which is connected to the lower mounting seat, the upper portion of which is passed through the lower support member and is slidably connected to the lower guide transmission member so as to reciprocate relative to the lower support member along the axial direction of the rotating drum, and the lower connecting shaft cannot rotate relative to the lower support member and the lower guide transmission member.

6. The one-piece side guard plate device for a through-passage according to claim 5, characterized in that: The upper support member is provided with a first square hole, and the upper connecting shaft includes a first square shaft segment that cooperates with the first square hole, and the first square shaft segment is passed through the first square hole; the lower support member is provided with a second square hole, and the lower connecting shaft includes a second square shaft segment that cooperates with the second square hole, and the second square shaft segment is passed through the second square hole.

7. The one-piece side guard plate device for a through-passage according to claim 5, characterized in that: The upper guide transmission member is provided with an upper guide slide, and the upper connecting shaft is provided with an upper roller that matches the upper guide slide; the lower guide transmission member is provided with a lower guide slide, and the lower connecting shaft is provided with a lower roller that matches the lower guide slide.

8. The one-piece side guard plate device for a through-passage according to claim 5 or 6, characterized in that: The upper support connection assembly also includes an upper support elastic member, which is supported between the upper connection shaft and the upper guide transmission member, and the upper support elastic member is elastically deformed with the reciprocating motion of the upper connection shaft; the lower support connection assembly also includes a lower support elastic member, which is supported between the lower connection shaft and the lower guide transmission member, and the lower support elastic member is elastically deformed with the reciprocating motion of the lower connection shaft.

9. The one-piece side guard plate device for a through-passage according to claim 8, characterized in that: The upper support connecting assembly also includes an upper fixed block fixedly connected to the upper guide transmission member; the upper connecting shaft also includes a first circular shaft section connected to the lower end of the first square shaft section, and the lower end of the first circular shaft section is passed through the upper fixed block; the upper support elastic member includes an upper support spring sleeved on the outside of the first circular shaft section, and the upper support spring is supported between the upper fixed block and the lower end of the first square shaft section; the lower support connecting assembly also includes a lower fixed block fixedly connected to the lower guide transmission member; the lower connecting shaft also includes a second circular shaft section connected to the upper end of the second square shaft section, and the upper end of the second circular shaft section is passed through the lower fixed block; the lower support elastic member includes a lower support spring sleeved on the outside of the second circular shaft section, and the lower support spring is supported between the lower fixed block and the upper end of the second square shaft section.

10. The one-piece side guard plate device for a through-passage according to claim 5, characterized in that: The upper connecting shaft is provided with a locking piece, and the upper mounting seat is provided with a through hole for the upper end of the upper connecting shaft to pass through and a locking groove engaged with the locking piece; the lower mounting seat includes a fixed seat for connecting to the vehicle body and a rotating seat hinged to the fixed seat, the rotating seat is provided with a positioning pin, and the lower connecting shaft is provided with a positioning hole matching the positioning pin.

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