Locking device, turnout and rail transit system

Abstract

The present application belongs to the field of rail transit technology, and particularly relates to a locking device, a turnout and a rail transit system. The locking device comprises a locking assembly, a stop block and an elastic member. The locking assembly abuts against the elastic member. The locking assembly has a first locking groove, a second locking groove and a turnout locking groove. The first locking groove is communicated with the second locking groove. The turnout locking groove is used for allowing a locking pin of a turnout to enter or exit in a first direction, so as to lock or unlock the turnout. In the present application, the locking shaft is clamped with the second locking groove, and the locking assembly is locked. The locking pin is clamped in the turnout locking groove, and the rapid locking of the turnout is realized. When unlocking is needed, the locking shaft is separated from the second locking groove, the locking of the locking assembly is released, the rapid unlocking of the turnout is realized, and the turnout can be rapidly locked and unlocked. Therefore, the switching time of the turnout is shortened, and the switching speed of the turnout is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of rail transit, in particular to a locking device, a turnout and a rail transit system. BACKGROUND

[0002] The turnout generally comprises fixed beams and a movable beam, the fixed beams are provided at least two, the movable beam is driven to move between the fixed beams by a driving mechanism to switch different driving channels. In order to ensure the reliable operation of the rail vehicle, it is necessary to set a locking device to lock and unlock the turnout beam.

[0003] The existing locking device comprises a lock head and a lock seat, after the turnout beam is switched to the position, the lock head is matched with the lock seat under the action of the driving motor to complete the locking of the turnout beam. However, in the above locking device, the driving part needs to consume a certain time in the process of driving the lock head to match with the lock seat, which leads to long locking time and high production cost, which will prolong the overall switching action cycle of the turnout beam and reduce the locking speed of the turnout, and the switching time is long. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a locking device, a turnout and a rail transit system to solve the problem of long locking time of the existing locking device.

[0005] In order to solve the above technical problems, on the one hand, the present application provides a locking device, comprising a locking assembly, a stop block and an elastic member, the locking assembly abuts against the elastic member, the locking assembly has a first locking groove, a second locking groove and a turnout locking groove, the first locking groove is communicated with the second locking groove, the turnout locking groove is used for the lock pin of the turnout to enter or exit in the first direction to lock or unlock the turnout;

[0006] The stop block is provided with a locking shaft, the stop block can move between a first position and a second position, when the stop block is located at the first position, the locking shaft is located in the first locking groove, when the stop block is located at the second position, the locking shaft is located in the second locking groove;

[0007] The locking assembly can be rotated under the pushing of the lock pin of the turnout and press the elastic member, the locking shaft moves along the first locking groove into the second locking groove, the stop block moves from the first position to the second position, the locking shaft locks the locking assembly to lock the lock pin of the turnout in the turnout locking groove;

[0008] When the stop block moves from the second position to the first position, the locking shaft exits from the second locking groove, the elastic member can push the locking assembly to rotate back to the position, so that the lock pin can exit from the turnout locking groove in the first direction.

[0009] Optionally, the locking assembly comprises a collision plate, a stop plate and a rotating pin shaft, the rotating pin shaft is connected between the collision plate and the stop plate, the first locking slot and the second locking slot are arranged on the stop plate, the turnout locking slot is arranged on the collision plate, and the collision plate and the stop plate rotate around the axis of the rotating pin shaft.

[0010] Optionally, the stop plate comprises a first body part and a stop part, one end of the stop part is connected to the first body part, and the other end of the stop part is a free end, the first locking slot is arranged at the intersection of the stop part and the first body part, and the second locking slot is arranged on the first body part.

[0011] The first body part is provided with a protrusion, the protrusion separates the first locking slot and the second locking slot, and the second locking slot is lower than the first locking slot.

[0012] Optionally, a stop rod is arranged on the side surface of the first body part away from the collision plate, the stop rod and the rotating pin shaft are eccentrically arranged on the first body part, and the stop rod can abut against the elastic member and extrude the elastic member when the stop plate rotates.

[0013] Optionally, the collision plate comprises a second body part, a first limiting part and a second limiting part, the first limiting part and the second limiting part are arranged on the second body part, the turnout locking slot is formed between the first limiting part and the second limiting part, the first limiting part is lower than the second limiting part, and the first limiting part is used for avoiding the movement of the locking pin of the turnout and blocking the locking pin of the turnout from leaving the turnout locking slot in the locked state of the turnout.

[0014] Optionally, one end of the first limiting part away from the second body part has a first surface, when the stop block is in the first position, the extension direction of the first surface is parallel to the first direction, when the stop block is in the second position, the collision plate rotates, and the extension direction of the first surface has an included angle with the first direction.

[0015] Optionally, the locking device further comprises a driving member and a connecting plate, the first end of the connecting plate is connected to the driving member, and the second end of the connecting plate is connected to the stop block, the driving member can drive the stop block to move from the second position to the first position through the connecting plate.

[0016] The second end of the connecting plate protrudes from the stop block along the axis direction of the locking shaft, and when the stop block is in the second position, the free end of the stop part abuts against the second end of the connecting plate.

[0017] Optionally, the driving member is a linear motor, the driving member comprises a base, a sliding block, a stator and a mover, the sliding block is slidingly connected to the base, the connecting plate is connected to the sliding block, the stopper is moved from the first position to the second position under the action of gravity, the mover and the stator interact to drive the stopper to move from the second position to the first position.

[0018] Optionally, the locking device further comprises a first sensor, a second sensor and a sensing sheet, the first sensor and the second sensor are installed on the base, the sensing sheet is installed on the sliding block, the sensing sheet triggers the first sensor when the stopper is in the first position, and the sensing sheet triggers the second sensor when the stopper is in the second position.

[0019] Optionally, the locking device further comprises a first sliding seat and a second sliding seat, the first sliding seat and the second sliding seat are arranged on opposite sides of the stopper, the first sliding seat is provided with a first sliding groove, the second sliding seat is provided with a second sliding groove, the stopper is provided with a first roller and a second roller, the first roller is arranged in the first sliding groove, and the second roller is arranged in the second sliding groove.

[0020] Optionally, the locking device further comprises an outer shell and an outer shell door, the outer shell door is rotatably connected to the outer shell, the stopper, the elastic member and the stop plate are arranged in the outer shell, the outer shell comprises a bottom plate and a frame, the frame is arranged around the outer edge of the bottom plate, the stop plate and the collision plate are arranged on opposite sides of the bottom plate, and the rotating pin shaft penetrates through the bottom plate.

[0021] Optionally, the locking assembly further comprises a shaft sleeve, a first bearing, a second bearing, a first bearing end cover and a second bearing end cover, the bottom plate is provided with a shaft sleeve hole, the shaft sleeve is arranged in the shaft sleeve hole, the shaft sleeve is sleeved on the outer side of the rotating pin shaft, one end of the shaft sleeve is connected to the first bearing, the other end of the shaft sleeve is connected to the second bearing, the first bearing end cover and the second bearing end cover are connected to opposite sides of the bottom plate, the first bearing is arranged between the first bearing end cover and the bottom plate, and the second bearing is arranged between the second bearing end cover and the bottom plate.

[0022] In another aspect, the embodiment of the present application provides a turnout, comprising a rotary driving member, a first fixed beam, a second fixed beam, a movable beam and a locking device as described above, the locking device is arranged on the first fixed beam and the second fixed beam, the movable beam is provided with a locking pin, the locking pin can enter or exit the turnout locking slot in a first direction, and the rotary driving member can drive the movable beam to rotate, so that the movable beam is switched between the first fixed beam and the second fixed beam.

[0023] Optionally, the locking device comprises a first locking device and a second locking device, the first locking device is arranged on the first fixed beam, the second locking device is arranged on the second fixed beam, the locking pin comprises a first locking pin and a second locking pin, the rotating driving member can drive the movable beam to rotate, when the movable beam is connected with the first fixed beam, the first locking pin is clamped on the first locking device, when the movable beam is connected with the second fixed beam, the second locking pin is clamped on the second locking device.

[0024] In still another aspect, an embodiment of the present application provides a rail transit system, comprising the turnout as described above.

[0025] The locking device provided by the embodiment of the present application can realize quick locking and unlocking of the turnout, thereby shortening the turnout switching time and improving the turnout switching speed. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic view of the locking device provided by an embodiment of the present application;

[0027] Figure 2 is a side view of the locking device provided by an embodiment of the present application;

[0028] Figure 3 is a partial view of the locking device provided by an embodiment of the present application;

[0029] Figure 4 is a schematic view of the locking device provided by an embodiment of the present application; Figure 3 is a schematic view of the locking device provided by an embodiment of the present application;

[0030] Figure 5 is a schematic view of the locking device provided by an embodiment of the present application;

[0031] Figure 6 is a schematic view of the locking device provided by an embodiment of the present application;

[0032] Figure 7 is a schematic view of the locking device provided by an embodiment of the present application;

[0033] Figure 8 is a schematic view of the locking device provided by an embodiment of the present application; Figure 7 is an enlarged view of B in the schematic view of the locking device provided by an embodiment of the present application;

[0034] Figure 9 is a schematic view of a locking device in a locked state according to an embodiment of the present application;

[0035] Figure 10 is a schematic view of a locking device in a locked state according to an embodiment of the present application;

[0036] Figure 11 is a schematic view of a turnout according to an embodiment of the present application;

[0037] Figure 12 is a schematic view of a locking device in a locked state according to an embodiment of the present application.

[0038] The reference signs in the description are as follows:

[0039] 10, locking device; 10a, first locking device; 10b, second locking device;

[0040] 11, locking assembly; 111, stop plate; 1111, first locking groove; 1112, second locking groove; 1113, first main body part; 1114, protrusion; 1115, stop part; 1116, stop rod; 112, collision plate; 1121, second main body part; 1122, first limiting part; 11221, first surface; 1123, second limiting part; 11231, second surface; 1124, turnout locking groove; 113, rotating pin; 114, shaft sleeve; 115, first bearing; 116, second bearing; 117, first bearing end cover; 118, second bearing end cover; 12, stop block; 121, locking shaft; 122, first roller; 123, second roller; 13, elastic member; 131, push rod; 14, driving member; 141, base; 1411, first sensor; 1412, second sensor; 142, sliding block; 1421, sensing sheet; 15, connecting plate; 161, first sliding seat; 1611, first sliding groove; 162, second sliding seat; 1621, second sliding groove; 171, outer housing; 1711, bottom plate; 1712, frame; 172, outer housing door; 173, waterproof joint;

[0041] 20, rotary driving member; 21, first fixed beam; 22, second fixed beam; 23, movable beam; 231, cross beam; 232, first locking pin; 233, second locking pin. DETAILED DESCRIPTION

[0042] In order to make the technical problems solved by the present application, the technical solutions and the beneficial effects more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0043] As Figures 1 to 10As shown, an embodiment of the locking device 10 provided by the present application comprises a locking assembly 11, a stopper 12 and an elastic member 13. The locking assembly 11 abuts against the elastic member 13. The locking assembly 11 has a first locking groove 1111, a second locking groove 1112 and a turnout locking groove 1124. The first locking groove 1111 is in communication with the second locking groove 1112. The turnout locking groove 1124 is used for the locking pin of the turnout to enter or exit in the first direction, so as to lock or unlock the turnout. When the turnout is switched, the locking pin of the turnout can move in the first direction. When the locking pin is clamped in the turnout locking groove 1124, the turnout is locked, indicating that the switching is in place. When the locking pin exits the turnout locking groove 1124, the locking of the turnout can be released.

[0044] The stopper 12 is provided with a locking shaft 121 arranged on the surface of the side of the stopper 12 facing the locking assembly 11. The stopper 12 can reciprocate between a first position and a second position. When the stopper 12 is in the first position, the locking shaft 121 is in the first locking groove 1111, and the first locking groove 1111 stops the locking shaft 121, so that the stopper 12 is kept at the first position. When the stopper 12 is in the second position, the locking shaft 121 is in the second locking groove 1112, and the locking shaft 121 can block the rotation of the locking assembly.

[0045] When the turnout starts to switch, the locking assembly 11 can be rotated under the pushing of the locking pin of the turnout. Since the locking assembly 11 abuts against the elastic member 13, the rotation of the locking assembly 11 will squeeze the elastic member 13, and the elastic member 13 accumulates elastic potential energy. At the same time, the rotation of the locking assembly 11 will change the positions of the first locking groove 1111 and the second locking groove 1112, so that the locking shaft 121 moves relative to the first locking groove 1111. The locking shaft 121 can move along the first locking groove 1111 and enter the second locking groove 1112, so as to drive the stopper 12 to move from the first position to the second position. The locking shaft 121 is clamped in the second locking groove 1112, and the locking assembly 11 cannot rotate, so as to lock the locking assembly 11. The locking pin cannot exit from the turnout locking groove 1124 in the first direction, so as to lock the locking pin of the turnout in the turnout locking groove 1124, and realize the locking after the turnout is switched in place. After the switching is in place, the elastic member 13 is squeezed to the limit position, and the elastic member 13 can limit the rotation angle of the locking assembly 11.

[0046] When the turnout needs to be unlocked, when the stop block 12 moves from the second position to the first position, the stop block 12 drives the locking shaft 121 to move. The locking shaft 121 disengages from the second locking groove 1112, releasing the locking shaft 121 from locking the locking component 11. Under the action of the elastic force, the elastic member 13 can push the locking component 11 to rotate back to its original position, and the locking shaft 121 re-enters the first locking groove 1111. At the same time, the turnout drives the locking pin to move, and the locking pin can disengage from the turnout locking groove 1124 in the first direction, thereby realizing the unlocking of the turnout.

[0047] The locking device 10 provided in this embodiment of the invention allows the turnout to be locked quickly when the turnout is switched. During this process, the locking pin of the turnout pushes the locking component 11 to rotate, engaging with the second locking groove 1112 via the locking shaft 121. This locks the locking component 11, securing the locking pin in the turnout locking groove 1124. When unlocking is required, the locking shaft 121 disengages from the second locking groove 1112, releasing the locking component 11. The elastic element 13 pushes the locking component 11 back to its original position, allowing the turnout to move the locking pin out of the turnout locking groove 1124, thus enabling rapid unlocking of the turnout. This rapid locking and unlocking of the turnout shortens the switching time and increases the switching speed.

[0048] In one embodiment, such as Figure 3 , Figure 5 As shown, the locking assembly 11 includes a collision plate 112, a stop plate 111, and a rotating pin 113. The rotating pin 113 is connected between the collision plate 112 and the stop plate 111. A first locking groove 1111 and a second locking groove 1112 are provided on the stop plate 111. A turnout locking groove 1124 is provided on the collision plate 112. The collision plate 112 and the stop plate 111 rotate around the rotating pin 113. The locking pin of the turnout moves toward the collision plate 112 in a first direction. The locking pin can push the collision plate 112 to rotate clockwise. The collision plate 112 synchronously drives the stop plate 111 to rotate clockwise via the rotating pin 113. After the stop plate 111 presses the elastic member 13 to the limit position, the stop plate 111 and the collision plate 112 stop rotating, the locking pin moves into place, and the locking pin is engaged in the turnout locking groove 1124.

[0049] Since the locking pin is moved by the turnout, the locking pin always keeps moving in the first direction. In the initial state, the turnout locking groove 1124 is obliquely arranged, and the locking pin can enter the turnout locking groove 1124 when moving in the first direction. After the impact plate 112 is rotated to the position, the opening direction of the turnout locking groove 1124 is changed, and since the locking assembly 11 is locked, the locking pin is blocked by the impact plate 112, and the locking pin cannot move out of the turnout locking groove 1124 in the first direction, so as to realize the locking of the turnout. Similarly, when unlocking is needed, the locking assembly 11 is counterclockwise rotated back to the initial state, the opening direction of the turnout locking groove 1124 is changed, at this time, the locking pin can move out of the turnout locking groove 1124 in the first direction under the movement of the turnout, so as to realize the unlocking of the turnout.

[0050] In an embodiment, as shown in Figure 7 、 Figure 10 The stop plate 111 includes a first body part 1113 and a stop part 1115. The first body part 1113 is connected with the rotating pin shaft 113. One end of the stop part 1115 is connected to the first body part 1113, and the other end of the stop part 1115 is a free end. The first locking groove 1111 is arranged at the joint of the stop part 1115 and the first body part 1113, and the second locking groove 1112 is arranged on the first body part 1113. Specifically, in the first direction, the first body part 1113 has oppositely arranged first and second side surfaces. The first and second locking grooves 1111 and 1112 are recessed from the first side surface to the second side surface, and the distance between the first locking groove 1111 and the first side surface is greater than the distance between the second locking groove 1112 and the first side surface.

[0051] The first body part 1113 is provided with a protrusion 1114, which separates the first and second locking grooves 1111 and 1112. The protrusion 1114 is located between the edge of the first locking groove 1111 close to the second locking groove 1112 and the edge of the second locking groove 1112 close to the first locking groove 1111. The second locking groove 1112 is lower than the first locking groove 1111.

[0052] In a preferred embodiment, as shown in Figure 7 、 Figure 10As shown, the first direction is horizontal direction, the block 12 can move up and down between the first position and the second position, when the block 12 is in the first position, the locking shaft 121 is located in the first locking groove 1111, when the stop plate 111 rotates clockwise, the first locking groove 1111 and the locking shaft 121 are separated from each other, the second locking groove 1112 moves to the position of the locking shaft 121, because the second locking groove 1112 is lower than the first locking groove 1111, there is a height difference between the second locking groove 1112 and the first locking groove 1111, so that the block 12 drives the locking shaft 121 to move downward under the action of gravity, the locking shaft 121 enters the second locking groove 1112, so that the block 12 moves to the second position.

[0053] In an embodiment, as shown in Figure 5 As shown, the side surface of the first main body part 1113 away from the collision plate 112 is provided with a stop rod 1116, the stop rod 1116 and the rotating pin shaft 113 are eccentrically arranged on the first main body part 1113, when the block 12 is in the first position, the stop rod 1116 can abut against the elastic member 13, when the stop plate 111 rotates clockwise, the stop rod 1116 rotates with the stop plate 111, in the horizontal direction, the stop rod 1116 moves towards the direction of the elastic member 13, the stop rod 1116 can press the elastic member 13, until the elastic member 13 is compressed to the limit state, the clockwise rotation trend of the stop plate 111 is limited by the elastic member 13.

[0054] In an embodiment, as shown in Figure 7 , Figure 10 As shown, the collision plate 112 includes a second main body part 1121, a first limiting part 1122 and a second limiting part 1123, the rotating pin shaft 113 is connected between the first main body part 1113 and the second main body part 1121, the first limiting part 1122 and the second limiting part 1123 are arranged on the second main body part 1121, the turnout locking groove 1124 is formed between the first limiting part 1122 and the second limiting part 1123, and the turnout locking groove 1124 is in U shape. The first limiting part 1122 is lower than the second limiting part 1123, when the locking pin of the turnout moves in the horizontal direction, the first limiting part 1122 can avoid the locking pin of the turnout, so that the locking pin can enter the turnout locking groove 1124, after the collision plate 112 rotates clockwise, the first limiting part 1122 can block the locking pin of the turnout from leaving the turnout locking groove 1124 in the locked state of the turnout.

[0055] In an embodiment, as shown in Figure 7 , Figure 10As shown, one end of the first limiting portion 1122 away from the second body portion 1121 has a first surface 11221, when the block 12 is in the first position, the extension direction of the first surface 11221 is parallel to the first direction, so that the locking pin of the turnout can move along the first surface 11221 into the turnout locking groove 1124. The collision plate 112 rotates, and when the block 12 is in the second position, the extension direction of the first surface 11221 has an angle with the first direction, the first surface 11221 changes from the horizontal state to the inclined state, and the first surface 11221 can block the movement of the locking pin of the turnout in the horizontal direction, and the turnout is in the locked state. After the block 12 moves from the second position to the first position, the elastic member 13 pushes the locking assembly 11 to rotate, the first surface 11221 changes from the inclined state to the horizontal state, and the locking pin of the turnout can move along the first surface 11221 and then come out of the turnout locking groove 1124.

[0056] Preferably, one end of the second limiting portion 1123 away from the second body portion 1121 has a second surface 11231, the first surface 11221 and the second surface 11231 have an angle therebetween, and the first surface 11221 and the second surface 11231 are not in the same plane. The second surface 11231 is in the inclined state, the extension direction of the second surface 11231 has an angle with the first direction, and the lower edge of the second surface 11231 is higher than the first surface 11221, so that the second limiting portion 1123 can block the locking pin and avoid the locking pin from overcoming the second limiting portion 1123 due to a large collision force, thereby affecting the clamping of the locking pin and the turnout locking groove 1124. The collision plate 112 rotates, and when the block 12 is in the second position, the extension direction of the second surface 11231 is parallel to the first direction, and the second surface 11231 changes from the inclined state to the horizontal state.

[0057] In an embodiment, as shown in Figure 3 , Figure 5 The locking device 10 further includes a driving member 14 and a connecting plate 15, the first end of the connecting plate 15 is connected to the driving member 14, and the second end of the connecting plate 15 is connected to the block 12. The block 12 can move downward under the action of gravity from the first position to the second position. The driving member 14 can drive the block 12 to move through the connecting plate 15, and the block 12 moves from the second position to the first position, so that the block 12 can move up and down in the vertical direction.

[0058] The second end of the connecting plate 15 protrudes from the block 12 along the axis direction of the locking shaft 121, that is, the width of the second end of the connecting plate 15 is greater than the thickness of the block 12, and the stop portion 1115 is located below the connecting plate 15. When the block 12 is in the second position, the free end of the stop portion 1115 abuts against the second end of the connecting plate 15, which also has the effect of being able to block the continued rotation of the stop plate 111.

[0059] In an embodiment, as shown in Figure 8 , Figure 10 the driving member 14 adopts a conventional linear motor, the driving member 14 comprises a base 141, a sliding block 142, a stator and a rotor, the sliding block 142 is slidingly connected to the base 141, the connecting plate 15 is connected to the sliding block 142, the stop block 12 is at the first position, and the linear motor is in a power-off state. After the stop plate 111 rotates, the stop block 12 moves from the first position to the second position under the action of gravity. When it is necessary to unlock the turnout, the linear motor is powered on, and under the magnetic field action of the stator and the rotor, the sliding block 142 moves, thereby driving the stop block 12 to move from the second position to the first position. The locking shaft 121 of the stop block 12 is re-coupled in the first locking groove 1111, and after the locking pin of the turnout leaves the turnout locking groove 1124, the linear motor is powered off. Through the coupling of the locking shaft 121 and the first locking groove 1111, the stop plate 111 supports the stop block 12 and does not fall.

[0060] In an embodiment, as shown in Figure 8 , the locking device 10 further comprises a first sensor 1411, a second sensor 1412 and an inductive sheet 1421, the first sensor 1411 and the second sensor 1412 are installed on the base 141, and the inductive sheet 1421 is installed on the sliding block 142. When the stop block 12 is at the first position, the inductive sheet 1421 contacts the first sensor 1411, and when the stop block 12 is at the second position, the inductive sheet 1421 contacts the second sensor 1412. Through the cooperation of the inductive sheet 1421, the first sensor 1411 and the second sensor 1412, the movement distance of the sliding block 142 can be limited, thereby limiting the movement position of the stop block 12.

[0061] Specifically, when the inductive sheet 1421 cooperates in the first sensor 1411, the first sensor 1411 can feedback the position of the stop block 12, at this time, the linear motor remains in a power-off state. When the stop block 12 falls to the second position, the inductive sheet 1421 cooperates in the second sensor 1412, at this time, the turnout is in a locked state. When the turnout receives a start signal, the linear motor is powered on, the stop block 12 moves upward, and after the inductive sheet 1421 triggers the first sensor 1411, the linear motor stops running.

[0062] In an embodiment, as shown in Figure 3 , Figure 5As shown, the locking device 10 further comprises a first sliding seat 161 and a second sliding seat 162, which are arranged on opposite sides of the block 12, the first sliding seat 161 is provided with a first sliding groove 1611, the second sliding seat 162 is provided with a second sliding groove 1621, the block 12 is provided with a first roller 122 and a second roller 123, the first roller 122 is arranged in the first sliding groove 1611, the second roller 123 is arranged in the second sliding groove 1621, when the block 12 moves up and down, the first sliding groove 1611 can guide the movement of the first roller 122, the first roller 122 moves up and down along the first sliding groove 1611, the second sliding groove 1621 guides the movement of the second roller 123, the second roller 123 moves up and down along the second sliding groove 1621, realizing the movement guidance and double limiting function of the block 12.

[0063] By limiting the block 12 through the first sliding seat 161 and the second sliding seat 162, the lateral force can be transmitted to the first sliding seat 161 and the second sliding seat 162, preventing the block 12 from shaking during the up and down movement, and protecting the linear motor from additional impact.

[0064] The first roller 122 and the second roller 123 are bidirectional rollers, the first roller 122 comprises a first lateral roller and a first end ball, the second roller 123 comprises a second lateral roller and a second end ball, the first sliding groove 1611 and the second sliding groove 1621 are U-shaped, when the first roller 122 moves up and down along the first sliding groove 1611, the first lateral roller moves along the side wall of the first sliding groove 1611, and the first end ball moves along the bottom wall of the first sliding groove 1611, when the second roller 123 moves up and down along the second sliding groove 1621, the second lateral roller moves along the side wall of the second sliding groove 1621, and the second end ball moves along the bottom wall of the second sliding groove 1621.

[0065] In an embodiment, as shown in the drawings, Figure 5 The elastic member 13 is a spring module, a push rod 131 is connected to the spring module, the push rod 131 abuts against the stop rod 1116, when the stop plate 111 rotates clockwise, the stop rod 1116 pushes the push rod 131 to move, thereby compressing the spring, the spring can push the push rod 131 to move under the action of the elastic force, and the push rod 131 pushes the stop plate 111 to rotate counterclockwise through the stop rod 1116.

[0066] In an embodiment, as shown in the drawings, Figure 1 , Figure 2As shown, the locking device 10 further comprises an outer housing 171 and an outer housing door 172, the outer housing door 172 is rotationally connected to the outer housing 171, the block 12, the elastic member 13 and the stop plate 111 are arranged in the outer housing 171, the outer housing 171 comprises a bottom plate 1711 and a frame 1712, the frame 1712 is arranged around the outer edge of the bottom plate 1711, the driving member 14, the elastic member 13, the first sliding seat 161 and the second sliding seat 162 are mounted on the bottom plate 1711, the stop plate 111 and the collision plate 112 are arranged on opposite sides of the bottom plate 1711, the rotation pin shaft 113 penetrates through the bottom plate 1711, and the stop plate 111 located inside the outer housing 171 and the collision plate 112 located outside the outer housing 171 are connected together, and the collision plate 112 is located outside the outer housing 171, so as to facilitate cooperation with the locking pin of the turnout.

[0067] In an embodiment, a rotation pin is arranged at the connection position of the outer housing 171 and the outer housing door 172, and the rotation pin is used for rotationally connecting the outer housing door 172 to the outer housing 171. A door lock is arranged on the outer housing door 172, and is used for locking the outer housing 171 and the outer housing door 172. A waterproof connector 173 is arranged on the outer housing 171.

[0068] In an embodiment, as shown in the drawings, Figure 4 The locking assembly 11 further comprises a shaft sleeve 114, a first bearing 115, a second bearing 116, a first bearing end cover 117 and a second bearing end cover 118. The bottom plate 1711 is provided with a shaft sleeve hole, and the shaft sleeve 114 is arranged in the shaft sleeve hole. The shaft sleeve 114 is arranged on the outer side of the rotation pin shaft 113. One end of the shaft sleeve 114 is connected to the first bearing 115, and the other end of the shaft sleeve 114 is connected to the second bearing 116. The first bearing end cover 117 and the second bearing end cover 118 are connected to opposite sides of the bottom plate 1711. The first bearing 115 is arranged between the first bearing end cover 117 and the bottom plate 1711, and the second bearing 116 is arranged between the second bearing end cover 118 and the bottom plate 1711. The shaft sleeve 114, the first bearing 115 and the second bearing 116 can reduce the rotation friction of the rotation pin shaft 113, so that the collision plate 112 can drive the stop plate 111 to rotate synchronously through the rotation pin shaft 113.

[0069] The working process of the locking device 10 in the embodiment is as follows: as shown in the drawings, Figure 6 、 Figure 7 In the initial state, the collision plate 112 is inclined, the sensing sheet 1421 triggers the first sensor 1411, the driving member 14 is in a power-off state at this time, the driving member 14 is connected to the block 12 through the connecting plate 15, the locking shaft 121 on the block 12 is arranged in the first locking groove 1111, the spring assembly is not stressed, and the push rod 131 abuts against the stop rod 1116 of the stop plate 111.

[0070] As shown in the drawings, Figure 9 、 Figure 10As shown, the switch is turned, the locking pin moves horizontally on the switch, and hits the right side of the opening of the switch locking groove 1124, driving the impact plate 112 to rotate clockwise, the impact plate 112 drives the stop plate 111 to rotate clockwise synchronously through the rotating shaft 113, and when the stop plate 111 rotates clockwise, the stop block 12 can push the push rod 131 to compress the spring module, the switch is turned to the position, the position switch of the switch is triggered, and at this time the stop block 12 moves to the second position due to gravity, the locking shaft 121 slides into the second locking groove 1112 along the first locking groove 1111, and the connecting plate 15 and the slider 142 of the linear motor move downward until the sensing sheet 1421 triggers the second sensor 1412, and the locking device 10 displays a locking signal.

[0071] When the train passes through the switch, the locking pin transmits force to the impact plate 112 due to the lateral force, and the impact plate 112 and the stop plate 111 have a tendency to rotate clockwise, in the locking state, the tendency of the stop plate 111 to rotate clockwise is limited by the spring module, and the stop block 12 pushes the push rod 131 to the limit state. The locking shaft 121 is clamped in the second locking groove 1112 and can block the rotation of the stop plate 111, at this time, the spring module cannot push the stop plate 111 to rotate although it is compressed, and the tendency of the stop plate 111 to rotate counterclockwise is limited by the stop block 12.

[0072] When the switch receives a starting signal, the linear motor is powered, the slider 142 of the linear motor moves upward, driving the stop block 12 to move upward, the locking shaft 121 is separated from the second locking groove 1112, the locking shaft 121 no longer blocks the rotation of the stop plate 111, the spring module pushes the stop plate 111 to rotate through the push rod 131, the stop plate 111 drives the impact plate 112 to the initial state through the rotating shaft 113, at the same time, the switch starts to turn, the locking pin is separated from the impact plate 112 and the switch locking groove 1124, and the unlocking is completed. After the slider 142 moves upward and the sensing sheet 1421 triggers the first sensor 1411, the linear motor stops moving and is powered off, the locking and unlocking processes of the switch are fast and short, the switching time is reduced, and the locking efficiency is improved.

[0073] On the other hand, as shown in Figure 11 、 Figure 12 The embodiment of the present application provides a switch, which comprises a rotary driving member 20, a first fixed beam 21, a second fixed beam 22, a movable beam 23 and the locking device 10 described in the above embodiment. The locking device 10 is arranged on the first fixed beam 21 and the second fixed beam 22, the movable beam 23 is provided with a locking pin, the locking pin can enter or exit the switch locking groove in the first direction, and the rotary driving member 20 can drive the movable beam 23 to rotate, so that the movable beam 23 is switched between the first fixed beam 21 and the second fixed beam 22.

[0074] In an embodiment, the locking device 10 comprises a first locking device 10a and a second locking device 10b, the first locking device 10a is arranged on the first fixed beam 21, the second locking device 10b is arranged on the second fixed beam 22, the locking pin comprises a first locking pin 232 and a second locking pin 233, and the rotation driving member 20 can drive the movable beam 23 to rotate to switch.

[0075] When the movable beam 23 is connected to the first fixed beam 21, the first locking pin 232 is clamped on the first locking device 10a to lock the movable beam 23 on the first fixed beam 21, and when the movable beam 23 is connected to the second fixed beam 22, the second locking pin 233 is clamped on the second locking device 10b to lock the movable beam 23 on the second fixed beam 22.

[0076] In an embodiment, as shown in Figure 12 the movable beam 23 is provided with a cross beam 231, the cross beam 231 is provided with a walking wheel, the first locking pin 232 and the second locking pin 233 are arranged on the cross beam 231, and preferably, the first locking pin 232 and the second locking pin 233 are arranged on opposite sides of the cross beam.

[0077] In another aspect, the embodiment of the present application provides a rail transit system comprising the turnout of the above-mentioned embodiment.

[0078] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A locking device, characterized in that The locking assembly abuts against the elastic member, the locking assembly has a first locking groove, a second locking groove and a turnout locking groove, the first locking groove communicates with the second locking groove, the turnout locking groove is used for the locking pin of the turnout to enter or exit in the first direction to lock or unlock the turnout; The locking assembly can be rotated under the pushing of the locking pin of the turnout and press the elastic member, the locking shaft moves into the second locking groove along the first locking groove, the stopper moves from the first position to the second position, the locking shaft locks the locking assembly to lock the locking pin of the turnout in the turnout locking groove; When the stopper moves from the second position to the first position, the locking shaft exits from the second locking groove, the elastic member can push the locking assembly to rotate back to position so that the locking pin can exit from the turnout locking groove in the first direction; The locking assembly includes a collision plate, a stop plate and a rotating pin shaft, the rotating pin shaft is connected between the collision plate and the stop plate, the first locking groove and the second locking groove are arranged on the stop plate, the turnout locking groove is arranged on the collision plate, and the collision plate and the stop plate rotate around the axis of the rotating pin shaft. The stop plate includes a first main body part and a stop part, one end of the stop part is connected to the first main body part, and the other end of the stop part is a free end, the first locking groove is arranged at the intersection of the stop part and the first main body part, and the second locking groove is arranged on the first main body part; 2. The closure device of claim 1, wherein, The first main body part is provided with a protrusion, the protrusion separates the first locking groove and the second locking groove, and the second locking groove is lower than the first locking groove. A stop rod is arranged on the side surface of the first main body part away from the collision plate, the stop rod and the rotating pin shaft are eccentrically arranged on the first main body part, the stop rod can abut against the elastic member and press the elastic member when the stop plate rotates.

3. The closure device of Claim 2, wherein, The collision plate includes a second main body part, a first limiting part and a second limiting part, the first limiting part and the second limiting part are arranged on the second main body part, the turnout locking groove is formed between the first limiting part and the second limiting part, the first limiting part is lower than the second limiting part, and the first limiting part is used for avoiding the movement of the locking pin of the turnout and blocking the locking pin of the turnout from leaving the turnout locking groove in the locked state of the turnout.

4. The closure device of Claim 1, wherein, One end of the first limiting part away from the second main body part has a first surface, when the stopper is in the first position, the extension direction of the first surface is parallel to the first direction, when the stopper is in the second position, the collision plate rotates, and the extension direction of the first surface has an included angle with the first direction.

5. The closure device of Claim 4, wherein, ​ 6. The closure device of Claim 2, wherein, The locking device further comprises a driving member and a connecting plate, a first end of the connecting plate is connected to the driving member, a second end of the connecting plate is connected to the block, the driving member can drive the block to move from the second position to the first position via the connecting plate; The second end of the connecting plate protrudes from the block along the axis direction of the locking shaft, and the free end of the stop portion abuts against the second end of the connecting plate when the block is in the second position.

7. The closure device of Claim 6, wherein, The driving member is a linear motor, the driving member comprises a base, a sliding block, a stator and a rotor, the sliding block is slidingly connected to the base, the connecting plate is connected to the sliding block, the block moves from the first position to the second position under the action of gravity, and the rotor and the stator interact to drive the block to move from the second position to the first position.

8. The closure device of Claim 7, wherein, The locking device further comprises a first sensor, a second sensor and a sensing sheet, the first sensor and the second sensor are installed on the base, the sensing sheet is installed on the sliding block, the sensing sheet triggers the first sensor when the block is in the first position, and the sensing sheet triggers the second sensor when the block is in the second position.

9. The closure device of Claim 1, wherein, The locking device further comprises a first sliding seat and a second sliding seat, the first sliding seat and the second sliding seat are arranged on opposite sides of the block, the first sliding seat is provided with a first sliding groove, the second sliding seat is provided with a second sliding groove, the block is provided with a first roller and a second roller, the first roller is arranged in the first sliding groove, and the second roller is arranged in the second sliding groove.

10. The closure device of Claim 1, wherein, The locking device further comprises an outer shell and an outer shell door, the outer shell door is rotationally connected to the outer shell body, the block, the elastic member and the stop plate are arranged in the outer shell body, the outer shell body comprises a bottom plate and a frame, the frame is arranged around the outer edge of the bottom plate, the stop plate and the impact plate are arranged on opposite sides of the bottom plate, and the rotating pin shaft penetrates through the bottom plate.

11. The closure device of Claim 10, wherein, The locking assembly further comprises a shaft sleeve, a first bearing, a second bearing, a first bearing end cover and a second bearing end cover, the bottom plate is provided with a shaft sleeve hole, the shaft sleeve is arranged in the shaft sleeve hole, the shaft sleeve is arranged on the outer side of the rotating pin shaft, one end of the shaft sleeve is connected to the first bearing, the other end of the shaft sleeve is connected to the second bearing, the first bearing end cover and the second bearing end cover are connected to opposite sides of the bottom plate, the first bearing is arranged between the first bearing end cover and the bottom plate, and the second bearing is arranged between the second bearing end cover and the bottom plate.

12. A turnout, characterized in that The locking device comprises a rotary driving member, a first fixed beam, a second fixed beam, a movable beam and any one of the locking devices in claims 1-11, the locking device is arranged on the first fixed beam and the second fixed beam, the movable beam is provided with a locking pin, the locking pin can enter or exit the turnout locking slot in a first direction, and the rotary driving member can drive the movable beam to rotate, so that the movable beam is switched between the first fixed beam and the second fixed beam.

13. The turnout of claim 12, wherein, The locking device comprises a first locking device and a second locking device, the first locking device is arranged on the first fixed beam, the second locking device is arranged on the second fixed beam, the locking pin comprises a first locking pin and a second locking pin, when the movable beam is connected with the first fixed beam, the first locking pin is clamped on the first locking device, when the movable beam is connected with the second fixed beam, the second locking pin is clamped on the second locking device.

14. A rail transportation system characterized by, The switch comprises the first and second switches according to claim 12 or 13.

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