Two-way seat reversing structure of railway vehicle

Abstract

The invention discloses a railway vehicle two-way seat reversing structure which comprises a seat frame, end plates and a connecting plate, the end plates are provided with two ends hinged to the connecting plate respectively, the seat frame comprises two side vertical frames and a bearing frame installed between the two side vertical frames, and a limiting assembly is installed in the bearing frame. Limiting grooves and overturning regulation and control grooves are formed in the upper portions of the opposite sides of the two side vertical frames, when the end plates and the connecting plates are bent to 90 degrees, overturning assemblies arranged on the two sides, facing the side vertical frames, of the end plates can stretch into the limiting grooves and the overturning regulation and control grooves, and hollow bins are formed in the hinge connecting positions of the end plates and the connecting plates. The overturning assembly is arranged in the hollow bin, a locking piece is installed in the hollow bin, and the end plate is provided with a fixed tooth ring installed on the outer side. And two sets of matching mechanisms are contained and installed in each side vertical frame, treading hydraulic devices connected with the matching mechanisms can be installed in the side vertical frames, and transverse moving pushing pieces matched with the matching mechanisms are installed outside the overturning regulation and control grooves.

Description

Technical Field

[0001] The invention relates to the technical field of transportation vehicles, and in particular to a two-way seat reversing structure for a rail vehicle. Background Art

[0002] In order to meet the transportation capacity demand, the existing high-speed railways are equipped with locomotives at both ends to achieve rapid direction changes. When the high-speed railway changes direction, the direction of the seats needs to be adjusted. The existing high-speed railway seats all use a rotating mechanism at the bottom to rotate 180° to achieve front and rear direction changes. This not only requires sufficient space between the front and rear seats for rotation and switching, but also requires the attendants to push the entire seat hard during the switching process, which greatly consumes the attendants' physical strength.

[0003] The patent with publication number CN220163864U discloses a seat structure with a backrest that can be switched forward and backward. The seat structure includes a base, a backrest, and a connecting rod group arranged on both sides of the backrest and connecting the backrest and the base. There are no less than two connecting rods in the connecting rod group on the same side of the backrest. One end of the connecting rod is connected to the base through a rotating shaft 1, and the other end of the connecting rod is connected to the backrest through a rotating shaft 2. A limiting structure for limiting the swing angle of the connecting rod is provided on the base. The seat back of this application can be switched in the forward and backward directions through the swing of the connecting rod groups on both sides, and the swing angle of the connecting rod is limited by setting a limiting mechanism. In combination with the stability of the structure of the connecting rod groups on both sides after the limiting, the backrest can be stably stood on both sides of the seat. The switching structure of this application reduces the locking mechanism that directly connects the backrest to the base. The structure avoids the need to unlock the seat when the backrest is switched forward and backward, saving the time of seat switching. However, the seat surface and the seat back will be swapped when the device is switched. Since the seat back faces the leg movement range of the rear passengers, it is more likely to be stained. When the stained seat back is switched, it will serve as the seat surface of the passenger, making it difficult for the passenger to continue sitting. At the same time, in order to ensure the comfort of the seat, the seat surface is usually equipped with more cushions and other devices than the seat back. The switching scheme of the aforementioned application requires the installation of cushions on both the seat surface and the seat back while ensuring the same comfort, which increases the cost of seat installation. In addition, the seat back equipped with cushions will also occupy the leg space of the rear passengers and cause discomfort. For this reason, we propose a two-way seat switching structure for rail vehicles. Summary of the invention

[0004] In order to solve the problems mentioned in the above background technology, the present invention provides a two-way seat reversing structure for a rail vehicle.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A two-way seat reversing structure for a rail vehicle comprises a seat frame, an end plate (and) a connecting plate, the end plate is provided with two hinges respectively installed at the two ends of the connecting plate, the seat frame comprises two side frames and a support frame installed between the two side frames, a limit assembly is installed in the support frame, the upper parts of the two side frames facing each other are provided with a limit groove and a flip regulating groove, when the end plate is bent to a state of 90 degrees with the connecting plate, the flip assemblies arranged on the two sides of the end plate facing the side frames can extend into the limit groove and the flip regulating groove;

[0007] The hinged connection between the end plate and the connecting plate has a hollow chamber, the flip assembly is arranged in the hollow chamber, a locking piece is installed in the hollow chamber, and the end plate is provided with a fixed tooth ring installed on the outside;

[0008] Two sets of matching mechanisms are housed and installed in each side frame. A pedal hydraulic device connected to the matching mechanism can be installed in the side frame, and a transverse propulsion member matching with the matching mechanism is installed outside the flip control groove.

[0009] Preferably, the end plate has a limiting port on the side away from the passenger's body, the limiting assembly includes a hollow fixed cylinder, a passive lifting column and a limiting plate, the hollow fixed cylinder is fixedly installed in the support bracket, the passive lifting column is movably installed in the hollow fixed cylinder, the limiting plate is fixedly installed on the end of the passive lifting column extending out of the hollow fixed cylinder, the side wall of the hollow fixed cylinder has a guide rail, the outside of the passive lifting column has a limiting rod inserted into the guide rail, and the guide rail has a vertical section and an oblique section.

[0010] Preferably, the upper surface of the support bracket allows the limit plate to protrude upward. When the end plate moves to the specified position on the upper surface of the support bracket, the limit port can exactly correspond to the protruding port of the limit plate on the upper surface of the support bracket. The bottom opening of the limit port just allows the limit plate to be inserted, and the upper part of the limit port has a space that allows the limit plate to rotate therein.

[0011] Preferably, the flipping assembly includes a transverse sleeve, a linkage wheel group and a linkage rod. The transverse sleeve can be installed in the hollow warehouse for horizontal movement and is locked so as to be unable to rotate axially. Rotating rods with insertion into the transverse sleeve are installed on both sides of the connecting plate. At least one short insertion rod is arranged on the outside of the rotating rod. A threaded groove for inserting the short insertion rod is arranged on the inner wall of the transverse sleeve. The linkage wheel group and one end of the linkage rod can be installed axially and rotatably on the side of the transverse sleeve away from the connecting plate.

[0012] Preferably, the limit groove is used to limit the linkage rod inserted therein so that it cannot rotate axially, and teeth are provided on one side of the flip control groove so as to engage with the linkage wheel group inserted therein. Both ends of the limit groove and the flip control groove have access openings, and one end of the linkage wheel group close to the connecting plate is provided with a gear that can engage with a fixed tooth ring.

[0013] Preferably, the gear ratio of the gear meshing with the fixed tooth ring of the linkage wheel set and the fixed tooth ring is such that when the end plate moves from one side of the flip regulating groove to the other side with the linkage rod, the linkage wheel set can just drive the end plate to flip ninety degrees.

[0014] Preferably, the cooperating mechanism includes a distribution pipe, a piston connecting rod, a vertical shift rack, a rebound extension arm and a telescopic pull rod, and the pedal hydraulic device includes a pedal vertical cylinder and a hydraulic cylinder. The pedal vertical cylinder is connected to the hydraulic cylinder. When the pedal vertical cylinder is stepped down, the hydraulic fluid in the hydraulic cylinder will be squeezed into the distribution pipe through the hydraulic pipe, thereby pushing the hydraulic piston in the distribution pipe to move.

[0015] Preferably, one end of the piston connecting rod is connected to the hydraulic piston in the distribution pipe, and the other end is connected to the vertical rack. The lower end of the vertical rack is connected to the piston connecting rod and can move up and down with the piston connecting rod. The upper end of the vertical rack is connected to the rebound arm rotating shaft, and the upper end of the rebound arm is connected to the telescopic pull rod rotating shaft. The telescopic pull rod can be pulled to extend or retract the length, and a coil spring that tends to lift the rebound arm flat is installed in the rotating shaft connecting the upper end of the rebound arm and the telescopic pull rod.

[0016] Preferably, the transverse propulsion member includes two fixed toothed discs and a spiral propulsion member connected to the fixed toothed discs at both ends. The fixed toothed disc can cooperate with the teeth of the vertical rack and be driven by the downwardly moving vertical rack to perform axial rotation. After the linkage rod moves into the limiting groove, it will be located between the gaps of the spiral plates of the spiral propulsion member.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can drive one or even a row of multiple seats to change direction by stepping on the hydraulic device, which greatly reduces the work intensity of the crew when changing the seats, making the seat change work quick, labor-saving and efficient.

[0019] 2. In the present invention, the side of the end plate facing the passenger will not be exchanged before and after the direction is changed. When setting, it is only necessary to set a cushion or other device to increase the riding comfort on the side facing the passenger, thereby reducing the setting cost of the seat structure. At the same time, after the seat structure is changed, the area facing the rear passenger and easily stained will not be converted into the passenger's seat surface. If a cushion is not installed behind the backrest, the leg space of the rear passenger will not be occupied to cause discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the main body of a two-way seat reversing structure for a rail vehicle according to the present invention;

[0022] Figure 2 It is a schematic diagram of the seat frame structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the end plate and the connecting plate of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the matching mechanism, the pedal hydraulic device and the transverse propulsion member of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the transmission assembly of the present invention in one viewing direction;

[0026] Figure 6 It is a schematic structural diagram of the transmission assembly of the present invention in another observation direction.

[0027] In the figure: 1, seat frame; 101, limit slot; 102, flip control slot; 103, guide rail; 104, side cavity; 11, side frame; 12, support frame; 13, limit assembly; 131, hollow fixed cylinder; 132, passive lifting column; 133, limit plate; 134, limit rod; 14, flip assembly; 141, lateral sleeve; 142, linkage wheel group; 143, linkage rod; 144, belt rotating rod; 15, transmission assembly; 151, transmission rod; 1 52. Eccentric piece; 153. Turning handle; 2. End plate; 201. Limiting joint; 202. Hollow chamber; 3. Connecting plate; 4. Locking piece; 5. Fixed tooth ring; 6. Matching mechanism; 61. Distribution pipe; 62. Piston connecting rod; 63. Vertical rack; 64. Rebound extension arm; 65. Telescopic pull rod; 7. Pedal hydraulic device; 71. Pedal vertical cylinder; 72. Hydraulic cylinder; 73. Hydraulic pipe; 8. Transverse propulsion piece; 81. Fixed toothed disc; 82. Screw propulsion piece. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1

[0030] Reference Figure 1-6A two-way seat reversing structure for a rail vehicle comprises a seat frame 1, an end plate 2 and a connecting plate 3. The end plate 2 is provided with two hinges respectively installed at both ends of the connecting plate 3 to serve as a seat head pad and a seat cushion for passengers. The end plate 2 serving as a seat cushion is installed on the upper part of the seat frame 1 and is fixed.

[0031] The seat frame 1 includes two side frames 11 and a supporting frame 12 installed between the two side frames 11. A limiting assembly 13 is installed in the supporting frame 12 to lock the end plate 2 serving as a seat cushion on the supporting frame 12. The upper parts of the two side frames 11 facing each other have a limiting groove 101 and a flipping regulating groove 102. When the end plate 2 is bent to a ninety-degree state with the connecting plate 3, the flipping assembly 14 arranged on both sides of the end plate 2 facing the side frames 11 can extend into the limiting groove 101 and the flipping regulating groove 102. The user can drive the seat frame 1 to flip and change direction by stepping on the transmission assembly 15 installed in the side frames 11.

[0032] The end plate 2 has a limiting opening 201 on the side away from the passenger's body, and the limiting assembly 13 includes a hollow fixed cylinder 131, a passive lifting column 132 and a limiting piece 133. The hollow fixed cylinder 131 is fixedly installed in the support bracket 12, and the passive lifting column 132 can be installed in the hollow fixed cylinder 131 movably up and down. The limiting piece 133 is fixedly installed on the end of the passive lifting column 132 extending out of the hollow fixed cylinder 131 at the upper part, and the side wall of the hollow fixed cylinder 131 has a guide rail 103. The passive lifting column 132 has a limiting rod 134 inserted into the guide rail 103 on the outside, and the guide rail 103 has a vertical section and an oblique section. When the passive lifting column 132 moves up and down, the limiting rod 134 can cooperate with the inserted guide rail 103 to drive the passive lifting column 132 to rotate, thereby driving the limiting piece 133 to rotate coaxially.

[0033] The upper surface of the support bracket 12 allows the limiting piece 133 to protrude upward. When the end plate 2 moves to the specified position on the upper surface of the support bracket 12, the limiting opening 201 can just correspond to the protruding opening of the limiting piece 133 on the upper surface of the support bracket 12. The bottom opening of the limiting opening 201 just allows the limiting piece 133 to be inserted. The upper part of the limiting opening 201 has a space allowing the limiting piece 133 to rotate therein. If the limiting piece 133 rotates after being inserted into the limiting opening 201 from the bottom end, the rotating limiting piece 133 will not be able to fall out from the bottom of the limiting opening 201, thereby locking the end plate 2 on the support bracket 12.

[0034] Preferably, at least one of the side frames 11 is installed with a transmission assembly 15, and the transmission assembly 15 includes a transmission rod 151 extending into the hollow fixed cylinder 131 below the passive lifting column 132 and an eccentric piece 152 installed on the transmission rod 151 and extending into the inner end of the hollow fixed cylinder 131. The other end of the transmission rod 151 extends into the side cavity 104 set in the side plate of the side frame 11, and the end of the transmission rod 151 in the side cavity 104 is installed with a turning handle 153. After the user opens the side cavity 104, he can grasp the turning handle 153 to drive the transmission rod 151 and the eccentric piece 152 to rotate, thereby moving the passive lifting column 13 2 to lift or lower, the user pulls up the turning handle 153 to lift and rotate the passive lifting column 132, and then can use the threaded turning plug installed at the end of the turning handle 153 to connect with the thread of the fixed threaded head installed in the side cavity 104 to lock the turning handle 153 at a specified rotation position, so that the end plate 2 is stably locked to the support bracket 12. When it is necessary to adjust and reverse, the user unlocks the turning handle 153 and pulls the turning handle 153 to rotate and put down the passive lifting column 132, so that the limiting piece 133 rotates to a disengageable position and then moves downward to escape from the limiting port 201, so as to release the lock between the end plate 2 and the support bracket 12.

[0035] Example 2

[0036] Reference Figure 1-6 The difference between this embodiment and embodiment 1 is that the hinge connection between the end plate 2 and the connecting plate 3 has a hollow chamber 202, and the flip assembly 14 is arranged in the hollow chamber 202. The flip assembly 14 includes a transverse sleeve 141, a linkage wheel group 142 and a linkage rod 143. The transverse sleeve 141 can be installed horizontally movably in the hollow chamber 202 and is locked so as not to be able to rotate axially. Rotating rods 144 with insertion into the transverse sleeve 141 are installed on both sides of the connecting plate 3. At least one short plug rod is arranged on the outside of the rotating rod 144. A threaded groove for inserting the short plug rod is arranged on the inner wall of the transverse sleeve 141. When the rotating rod 144 and the connecting plate 3 rotate synchronously relative to the end plate 2, the transverse sleeve 141 that cannot rotate in the hollow chamber 202 will be pushed by the thread to move laterally due to the relative rotation between the short plug rod and the thread groove.

[0037] A locking piece 4 is installed in the hollow warehouse 202, and the user can use the locking piece 4 to lock the end plate 2 and the connecting plate 3 at a specified angle. When the end plate 2 and the connecting plate 3 are at a right angle, the transverse sleeve 141 moves to and remains at a position close to the connecting plate 3. When the end plate 2 and the connecting plate 3 are at a right angle, the transverse sleeve 141 moves to and remains at a position away from the connecting plate 3.

[0038] One end of the linkage wheel group 142 and the linkage rod 143 can be axially rotatably installed on the side of the transverse sleeve 141 away from the connecting plate 3. When the end plate 2 is at a right angle to the connecting plate 3 and the transverse sleeve 141 is moved to and maintained at a position close to the connecting plate 3, the linkage wheel group 142 and the linkage rod 143 will extend out of the hollow compartment 202, and the linkage wheel group 142 and the linkage rod 143 at the bottom will also be placed in the flip adjustment groove 102 and the limit groove 101. It is worth mentioning that before the seat is changed, the upper end plate 2 that was originally locked in a right angle state with the connecting plate 3 needs to be unlocked and switched to a right angle state in the same direction as the bottom end plate 2 and locked so that the linkage wheel group 142 and the linkage rod 143 in each hollow compartment 202 are extended for the changeover operation.

[0039] The limiting groove 101 is used to limit the linkage rod 143 inserted therein so that it cannot rotate axially. One side of the flip regulating groove 102 is provided with teeth so as to mesh with the linkage wheel set 142 inserted therein. The linkage wheel set 142 and the end of the linkage rod 143 extending out of the hollow chamber 202 are respectively inserted into the flip regulating groove 102 and the limiting groove 101. The linkage rod 143 is driven to move the entire end plate 2 at the bottom in a direction away from the connecting plate 3. When the end plate 2 moves, the gears of the linkage wheel set 142 will move synchronously in the flip regulating groove 102, so that the linkage wheel set 142 moves in the flip regulating groove 102 at the same time. It will also perform axial rotation, and the end plate 2 is provided with a fixed tooth ring 5 installed on the outside, and the end of the linkage wheel group 142 close to the connecting plate 3 is provided with a gear that can mesh with the fixed tooth ring 5. In this way, the linkage wheel group 142 that rotates axially in the flip regulation groove 102 will drive the laterally moving end plate 2 to rotate axially. It is worth mentioning that the gear meshing with the fixed tooth ring 5 of the linkage wheel group 142 and the fixed tooth ring 5 have a gear ratio such that when the end plate 2 moves from one side of the flip regulation groove 102 to the other side with the linkage rod 143, the linkage wheel group 142 can just drive the end plate 2 to flip ninety degrees.

[0040] After the end plate 2 moves and flips, the connecting plate 3 will be in close contact with the supporting bracket 12, and the two ends of the limiting groove 101 and the flip regulating groove 102 have access openings so that the linkage wheel group 142 and the linkage rod 143 extending from the two ends of the connecting plate 3 can smoothly enter the flip regulating groove 102 and the limiting groove 101. It can be understood that after the linkage wheel group 142 and the linkage rod 143 at one end of the connecting plate 3 arrive at the end of the flip regulating groove 102, the linkage wheel group 142 and the linkage rod 143 just placed in the flip regulating groove 102 will continue to be pushed and axially rotated. The seat is then turned by rotating the connecting plate 3 so that the connecting plate 3 continues to move and turn over, and the linkage wheel group 142 and the linkage rod 143 at the other end are lifted and moved out of the turning regulating groove 102 and the limiting groove 101 through the access entrance, until the end plate 2 originally in the head pad position is turned over to the top of the supporting bracket 12, after which the user re-locks the end plate 2 originally in the head pad position by the limiting assembly 13 as the end plate 2 in the seat cushion position after the reversal, and turns the end plate 2 originally in the seat cushion position over to stand upright and lock it as the end plate 2 in the head pad position, and the seat reversal is completed.

[0041] Example 3

[0042] Reference Figure 1-6 , the difference between this embodiment and embodiments 1 and 2 is that two sets of matching mechanisms 6 are stored and installed in each of the side frames 11, and the matching mechanisms 6 include a distribution pipe 61, a piston connecting rod 62, a vertical shift rack 63, a rebound extension arm 64 and a telescopic pull rod 65. The side frame 11 can be installed with a pedal hydraulic device 7 connected to the matching mechanism 6, and the pedal hydraulic device 7 includes a pedal vertical cylinder 71 and a hydraulic cylinder 72. The pedal vertical cylinder 71 is connected to the hydraulic cylinder 72. When the user steps on the pedal vertical cylinder 71, the hydraulic fluid in the hydraulic cylinder 72 will be squeezed into the distribution pipe 61 through the hydraulic delivery pipe 73, thereby pushing the hydraulic piston in the distribution pipe 61 to move. One end of the piston connecting rod 62 is connected to the hydraulic piston in the distribution pipe 61, and the other end is connected to the vertical shift rack 63. The user repeatedly steps on the pedal vertical cylinder 71, which will cause the hydraulic pressure in the distribution pipe 61 to be repeatedly squeezed in and discharged, thereby causing the hydraulic piston to drive the piston connecting rod 62 to move up and down repeatedly.

[0043] The lower end of the vertical shift rack 63 is connected to the piston connecting rod 62 and can move up and down with the piston connecting rod 62. A transverse shift propeller 8 is installed on the outside of the flip control groove 102. The transverse shift propeller 8 includes two fixed toothed discs 81 and a spiral propeller 82 connected to the fixed toothed discs 81 at both ends. The fixed toothed disc 81 can cooperate with the teeth of the vertical shift rack 63 and be driven by the downwardly moving vertical shift rack 63 to perform axial rotation, thereby causing the spiral propeller 82 to perform axial rotation. After the linkage rod 143 moves into the limiting groove 101, it will be located between the spiral sheet gaps of the spiral propeller 82, and will be pushed and moved when the spiral propeller 82 rotates.

[0044] The upper end of the vertical shift rack 63 is connected to the rotating shaft of the rebound arm 64, and the upper end of the rebound arm 64 is connected to the rotating shaft of the telescopic pull rod 65. The telescopic pull rod 65 can be pulled to extend or retract the length, and a coil spring tending to lift the rebound arm 64 is installed in the rotating shaft connected to the telescopic pull rod 65. In this way, when the vertical shift rack 63 is pushed upward, the rebound arm 64 will be pulled up by the coil spring first to move the vertical shift rack 63 away from the fixed gear plate 81, thereby avoiding driving the fixed gear plate 81 to rotate in the opposite direction. When the vertical shift rack 63 is pulled down, the rebound arm 64 will be pulled down until the vertical shift rack 63 is meshed with the fixed gear plate 81. After that, the vertical shift rack 63 can drive the fixed gear plate 81 to rotate axially while continuing to be pulled down.

[0045] The seat reversing structure is provided with two sets of matching mechanisms 6, a pedal hydraulic device 7 and a transverse propulsion member 8, so that the user can drive the spiral propulsion member 82 to rotate in the opposite direction by stepping on the pedal hydraulic device 7 at different positions, thereby driving the end plate 2 and the connecting plate 3 to switch in two different directions.

[0046] Preferably, when multiple sets of seat reversing structures are arranged side by side, each set of seat reversing structures is provided with two sets of matching mechanisms 6, and is hydraulically connected to the hydraulic cylinder 72 connected to the pedal vertical cylinder 71 close to the vehicle aisle for users to step on conveniently through an independent hydraulic pipe 73, so that the user can drive multiple sets of seat reversing structures in the same row to complete the reversal when stepping on a pedal vertical cylinder 71.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A two-way seat reversing structure for a rail vehicle, comprising a seat frame (1), an end plate (2) and a connecting plate (3), wherein the end plate (2) is provided with two ends respectively hingedly mounted on the connecting plate (3), characterized in that: The seat frame (1) comprises two side frames (11) and a support frame (12) installed between the two side frames (11); a limit assembly (13) is installed in the support frame (12); the upper parts of the two side frames (11) facing each other are provided with a limit groove (101) and a flip adjustment groove (102); when the end plate (2) is bent to a 90-degree state with the connecting plate (3), the flip assembly (14) arranged on the two sides of the end plate (2) facing the side frames (11) can extend into the limit groove (101) and the flip adjustment groove (102); The hinge connection between the end plate (2) and the connecting plate (3) has a hollow chamber (202), the flip assembly (14) is arranged in the hollow chamber (202), a locking member (4) is installed in the hollow chamber (202), and the end plate (2) is provided with a fixed tooth ring (5) installed on the outside; Two sets of matching mechanisms (6) are accommodated and installed in each of the side frames (11), and a pedal hydraulic device (7) connected to the matching mechanism (6) can be installed in the side frames (11), and a transverse propulsion member (8) matching with the matching mechanism (6) is installed outside the flip control groove (102).

2. A rail vehicle bidirectional seat reversing structure according to claim 1, characterized in that: The end plate (2) has a limiting opening (201) on a side away from the passenger's body. The limiting assembly (13) comprises a hollow fixed cylinder (131), a passive lifting column (132) and a limiting plate (133). The hollow fixed cylinder (131) is fixedly installed in the support frame (12). The passive lifting column (132) is installed in the hollow fixed cylinder (131) so as to be movable up and down. The limiting plate (133) is fixedly installed on the end of the passive lifting column (132) extending out of the hollow fixed cylinder (131). The side wall of the hollow fixed cylinder (131) has a guide rail (103). The passive lifting column (132) has a limiting rod (134) inserted into the guide rail (103) on its outside. The guide rail (103) has a vertical section and an oblique section.

3. A rail vehicle bidirectional seat reversing structure according to claim 2, characterized in that: The upper surface of the support frame (12) allows the limiting piece (133) to protrude upwards; when the end plate (2) moves to a specified position on the upper surface of the support frame (12), the limiting opening (201) can exactly correspond to the protruding opening of the limiting piece (133) on the upper surface of the support frame (12); the bottom opening of the limiting opening (201) just allows the limiting piece (133) to be inserted; and the upper part of the limiting opening (201) has a space that allows the limiting piece (133) to rotate therein.

4. A rail vehicle bidirectional seat reversing structure according to claim 1, characterized in that: The flip assembly (14) comprises a transverse sleeve (141), a linkage wheel group (142) and a linkage rod (143); the transverse sleeve (141) can be installed in the hollow chamber (202) in a horizontally movably manner and is locked so as not to be able to rotate axially; rotating rods (144) inserted into the transverse sleeve (141) are installed on both sides of the connecting plate (3); at least one short insertion rod is arranged on the outside of the rotating rod (144); a threaded groove for inserting the short insertion rod is arranged on the inner wall of the transverse sleeve (141); one end of the linkage wheel group (142) and the linkage rod (143) can be installed in an axially rotatable manner on a side of the transverse sleeve (141) away from the connecting plate (3).

5. A rail vehicle bidirectional seat reversing structure according to claim 4, characterized in that: The limiting groove (101) is used to limit the linkage rod (143) inserted therein so that it cannot rotate axially. One side of the flip regulating groove (102) is provided with teeth so as to mesh with the linkage wheel set (142) inserted therein. Both ends of the limiting groove (101) and the flip regulating groove (102) have access openings. One end of the linkage wheel set (142) close to the connecting plate (3) is provided with a gear capable of meshing with a fixed tooth ring (5).

6. A rail vehicle bidirectional seat reversing structure according to claim 5, characterized in that: The gear ratio of the gear meshing between the linkage wheel set (142) and the fixed toothed ring (5) and the fixed toothed ring (5) is such that when the end plate (2) moves from one side of the flipping regulating groove (102) to the other side along with the linkage rod (143), the linkage wheel set (142) can just drive the end plate (2) to flip ninety degrees.

7. The rail vehicle bidirectional seat reversing structure according to claim 1, characterized in that: The matching mechanism (6) comprises a distribution pipe (61), a piston connecting rod (62), a vertically movable rack (63), a rebound extension arm (64) and a telescopic pull rod (65); the pedaling hydraulic device (7) comprises a pedaling vertical cylinder (71) and a hydraulic cylinder (72); the pedaling vertical cylinder (71) is connected to the hydraulic cylinder (72); when the pedaling vertical cylinder (71) is stepped down, the hydraulic fluid in the hydraulic cylinder (72) will be squeezed into the distribution pipe (61) through the hydraulic delivery pipe (73), thereby pushing the hydraulic piston in the distribution pipe (61) to move.

8. A rail vehicle bidirectional seat reversing structure according to claim 7, characterized in that: One end of the piston connecting rod (62) is connected to the hydraulic piston in the distribution pipe (61), and the other end is connected to the vertical rack (63). The lower end of the vertical rack (63) is connected to the piston connecting rod (62) and can move up and down together with the piston connecting rod (62). The upper end of the vertical rack (63) is connected to the rotating shaft of the rebound arm (64). The upper end of the rebound arm (64) is connected to the rotating shaft of the telescopic pull rod (65). The telescopic pull rod (65) can be pulled to extend or retract its length. A coil spring tending to lift the rebound arm (64) is installed in the rotating shaft connected to the upper end of the rebound arm (64) and the telescopic pull rod (65).

9. A rail vehicle bidirectional seat reversing structure according to claim 4, characterized in that: The transverse propulsion member (8) comprises two fixed toothed discs (81) and a spiral propulsion member (82) connected to the fixed toothed discs (81) at both ends. The fixed toothed disc (81) can cooperate with the teeth of the vertically shifted rack (63) and be driven by the vertically shifted rack (63) moving downward to perform axial rotation. After the linkage rod (143) moves into the limiting groove (101), it will be located between the spiral sheet gaps of the spiral propulsion member (82).

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