Locking device, portal crane and transportation facility

Abstract

The utility model relates to the technical field of door locks, in particular to a locking device, a door machine and a traffic transportation facility, the locking device comprises a rotating shaft, a rotating wheel, a one-way transmission piece and a locking assembly, the rotating wheel is sleeved on the rotating shaft, the one-way transmission piece is arranged between the rotating wheel and the rotating shaft, and the one-way transmission piece is respectively and fixedly connected with the rotating shaft and the rotating wheel. The one-way transmission part can rotate in the first direction, the rotating shaft is arranged in the locking assembly in a penetrating mode and can rotate relative to the locking assembly, when the rotating wheel rotates in the first direction, the locking assembly locks the rotating shaft, when the rotating wheel rotates in the second direction, the locking assembly unlocks the rotating shaft, and the first direction is opposite to the second direction. When a door is closed, the locking assembly locks the rotating shaft, the one-way transmission part acts, the one-way transmission part and the rotating wheel rotate together to achieve the door closing action, and due to the fact that the one-way transmission part cannot rotate reversely, the door cannot be opened at any position in the door closing process, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, and in particular to a locking device, a door machine and transportation facilities. Background Art

[0002] At present, spiral transmission door systems are widely used in public transportation vehicles such as rail vehicles and buses. The spiral transmission door system uses a screw to transmit the door, and after the door is closed, the screw can still rotate. The door can be easily opened during the operation of the vehicle, which poses a safety hazard. Therefore, a locking device is generally set.

[0003] Existing locking devices are generally end-point locking, that is, the door can only be locked after it is completely closed. However, the door can still be easily opened during the closing process, so there are still certain safety hazards. Utility Model Content

[0004] The embodiments of the utility model provide a locking device, a door machine and a transportation facility to solve the problem in the prior art that a vehicle door is easily opened during the closing process, thus posing a safety hazard.

[0005] An embodiment of the utility model provides a locking device, which includes: a rotating shaft; a rotating wheel, the rotating wheel is sleeved on the rotating shaft; a one-way transmission member, the one-way transmission member is arranged between the rotating wheel and the rotating shaft, the one-way transmission member is fixedly connected to the rotating shaft and the rotating wheel respectively, and the one-way transmission member can rotate along a first direction; a locking assembly, the rotating shaft is passed through the locking assembly, the rotating shaft can rotate relative to the locking assembly, when the rotating wheel rotates along the first direction, the locking assembly locks the rotating shaft, and when the rotating wheel rotates along the second direction, the locking assembly unlocks the rotating shaft, the first direction is opposite to the second direction.

[0006] Optionally, the locking assembly includes: an electromagnet, which is rotatably connected to the rotating shaft; an armature, which is movably connected to the electromagnet along the axial direction of the rotating shaft, and a locking structure that can cooperate with the rotating shaft is provided on the side of the armature away from the electromagnet, and the locking structure is used to lock the rotating shaft; an elastic member, which is located between the armature and the electromagnet, one end of the elastic member is connected to the armature, and the other end is connected to the electromagnet, and the elastic member is used to drive the armature to move toward the side away from the electromagnet along the axial direction of the rotating shaft until the armature is locked and cooperated with the rotating shaft.

[0007] Optionally, a clamping portion is provided on the circumferential side of the rotating shaft, the clamping portion is fixedly connected to the rotating shaft, the armature is located between the clamping portion and the electromagnet, and the clamping portion is used to cooperate with the locking structure.

[0008] Optionally, the armature is provided with a through hole for penetrating the rotating shaft.

[0009] Optionally, a guide piece is provided between the electromagnet and the armature, and the armature and / or the electromagnet is provided with a guide groove for the guide piece to be embedded in the axial direction of the rotating shaft.

[0010] Optionally, an unlocking assembly is further included, wherein the unlocking assembly is connected to the electromagnet, and along the axial direction of the rotating shaft, the unlocking assembly is used to drive the armature to move toward a side close to the electromagnet.

[0011] Optionally, the unlocking assembly includes an unlocking member, which is rotatably connected to the electromagnet, and the rotation axis of the unlocking member is perpendicular to the axial direction of the rotating shaft. Along the axial direction of the rotating shaft, the unlocking member is used to drive the armature to move toward a side close to the electromagnet.

[0012] Optionally, the unlocking assembly further includes a pulling member, and the pulling member is connected to the unlocking member.

[0013] Optionally, the unlocking assembly further includes a travel switch, and the travel switch is connected to the unlocking member.

[0014] Optionally, the unlocking member includes: a pulling part, the pulling part is provided with a giveway groove for installing the armature, and the pulling part is connected to the pulling member; a hinged part, the hinged parts are provided at opposite ends of the pulling part, the hinged part is fixedly connected to the pulling part, and the hinged part is rotatably connected to the electromagnet; a triggering part, the triggering part is fixedly connected to the pulling part, and the triggering part is movably connected to the travel switch.

[0015] Optionally, the locking device further comprises a mounting seat, and the mounting seat is fixedly connected to the electromagnet.

[0016] The embodiment of the utility model further provides a door machine, which comprises a transmission belt and the above-mentioned locking device, wherein the transmission belt is wound around the rotating wheel.

[0017] The embodiment of the utility model further provides a transportation facility, which includes the above-mentioned locking device.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] In the embodiment of the present application, when the rotating wheel rotates in the first direction, the door body is driven to close, and when the rotating wheel rotates in the second direction, the door body is driven to open. When closing the door, the locking assembly locks the rotating shaft so that the rotating shaft cannot rotate. At this time, the one-way transmission member works, and the one-way transmission member and the rotating wheel rotate together in the first direction, thereby realizing the door closing action. When opening the door, the rotating shaft is unlocked and the rotating shaft can rotate relative to the locking assembly. At this time, the one-way transmission member does not work, that is, the one-way transmission member, the rotating shaft and the rotating wheel are fixedly connected as a whole, and the three rotate together in the second direction, thereby realizing the door opening action. Since the one-way transmission member cannot rotate in the reverse direction, the door body cannot be opened in the reverse direction at any position during the door closing process, so that the door body remains in a reverse locked state, thereby reducing safety hazards.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below.

[0022] Figure 1 A schematic diagram of the structure of a locking device provided in an embodiment of the utility model;

[0023] Figure 2 An exploded view of the structure of a locking device provided in an embodiment of the utility model;

[0024] Figure 3 A cross-sectional view of a locking device provided in an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of the structure of an electromagnet provided in an embodiment of the utility model;

[0026] Figure 5 A structural side view of a locking device provided by an embodiment of the utility model;

[0027] Figure 6 A schematic structural diagram of a door machine provided in an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1. Rotating shaft; 11. Clamping part; 2. Rotating wheel; 3. One-way transmission member; 4. Locking assembly; 41. Electromagnet; 411. Buffer pad; 42. Armature; 43. Elastic member; 5. Guide member; 6. Unlocking assembly; 61. Unlocking member; 611. Pulling part; 612. Articulated part; 613. Triggering part; 614. Torsion spring; 62. Pulling member; 63. Travel switch; 7. Mounting seat; 8. Transmission belt; 81. Clamp; 9. Driving motor; 10. Motor bracket. DETAILED DESCRIPTION

[0030] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can also be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0031] Reference Figure 1-Figure 3 The embodiment of the utility model provides a locking device, which includes: a rotating shaft 1; a rotating wheel 2, wherein the rotating wheel 2 is sleeved on the rotating shaft 1; a one-way transmission member 3, wherein the one-way transmission member 3 is arranged between the rotating wheel 2 and the rotating shaft 1, wherein the one-way transmission member 3 is fixedly connected to the rotating shaft 1 and the rotating wheel 2 respectively, and wherein the one-way transmission member 3 can rotate along a first direction; a locking assembly 4, wherein the rotating shaft 1 is penetrated by the locking assembly 4, wherein the rotating shaft 1 can rotate relative to the locking assembly 4, wherein when the rotating wheel 2 rotates along the first direction, the locking assembly 4 locks the rotating shaft 1, and when the rotating wheel 2 rotates along the second direction, the locking assembly 4 unlocks the rotating shaft 1, wherein the first direction is opposite to the second direction.

[0032] Specifically, the one-way transmission member 3 can be a one-way bearing, and the one-way transmission member 3 is disposed between the rotating wheel 2 and the rotating shaft 1. The one-way transmission member 3 is respectively interference-fitted with the rotating wheel 2 and the rotating shaft 1, so as to realize that the one-way transmission member 3 is respectively fixedly connected with the rotating wheel 2 and the rotating shaft 1. In addition, the one-way transmission member 3 can also be fixed between the rotating wheel 2 and the rotating shaft 1 by a fixed connection method such as welding, which is not limited in the embodiment of the present application.

[0033] In this embodiment, the locking device is installed on the door body, and the transmission belt 8 is wound around the rotating wheel 2. The transmission belt 8 rotates to drive the door body to close or open. When the rotating wheel 2 rotates in a first direction, the door body is driven to close, and when the rotating wheel 2 rotates in a second direction, the door body is driven to open. Of the first direction and the second direction, one direction may be clockwise, and the other direction may be counterclockwise.

[0034] When closing the door, the locking assembly 4 locks the rotating shaft 1 so that the rotating shaft 1 cannot rotate. At this time, the one-way transmission member 3 works, and the one-way transmission member 3 and the rotating wheel 2 rotate together in the first direction, thereby realizing the door closing action. When opening the door, the locking assembly 4 unlocks the rotating shaft 1, and the rotating shaft 1 can rotate relative to the locking assembly 4. At this time, the one-way transmission member 3 does not work, that is, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 are fixedly connected as a whole, and the three rotate together in the second direction, thereby realizing the door opening action.

[0035] In this embodiment, when closing the door, since the one-way transmission member 3 can only rotate in the first direction and cannot rotate in the reverse direction, the door body cannot be opened in the reverse direction at any position during the door closing process, so that the door body remains in a reverse locked state, thereby reducing safety hazards.

[0036] In some embodiments, a deep groove ball bearing is further provided between the rotating wheel 2 and the rotating shaft 1. The deep groove ball bearing can reduce the friction suffered by the rotating wheel 2 and the rotating shaft 1 during rotation, thereby reducing the wear of parts.

[0037] Optionally, refer to Figure 1-Figure 3 The locking assembly 4 includes: an electromagnet 41, which is rotatably connected to the rotating shaft 1; an armature 42, which is movably connected to the electromagnet 41 along the axial direction of the rotating shaft 1, and a locking structure capable of cooperating with the rotating shaft 1 is provided on the side of the armature 42 away from the electromagnet 41, and the locking structure is used to lock the rotating shaft 1; an elastic member 43, which is located between the armature 42 and the electromagnet 41, one end of the elastic member 43 is connected to the armature 42, and the other end is connected to the electromagnet 41, and along the axial direction of the rotating shaft 1, the elastic member 43 is used to drive the armature 42 to move toward the side away from the electromagnet 41 until the armature 42 is locked and matched with the rotating shaft 1.

[0038] Specifically, a through hole is provided in the middle of the electromagnet 41, the rotating shaft 1 is provided in the through hole and can rotate relative to the electromagnet 41, and two deep groove ball bearings are provided between the electromagnet 41 and the rotating shaft 1. The armature 42 is located on the side of the electromagnet 41 close to the rotating wheel 2, and the armature 42 and the electromagnet 41 cannot rotate relative to each other, and the armature 42 can only reciprocate along the axial direction of the rotating shaft 1. The elastic member 43 can be a spring, or an elastic element such as a rubber pad, as long as the elastic member 43 can push the armature 42 to move to the side away from the electromagnet 41.

[0039] The armature 42 is provided with a locking structure that can cooperate with the rotating shaft 1. When closing the door, the electromagnet 41 is not energized, and the armature 42 moves to the side away from the electromagnet 41 under the action of the elastic member 43 until the locking structure on the armature 42 cooperates with the rotating shaft 1 and locks the rotating shaft 1. At this time, the rotating shaft 1 cannot rotate, the one-way transmission member 3 works, and the one-way transmission member 3 and the rotating wheel 2 rotate together in the first direction, thereby realizing the door closing action.

[0040] When opening the door, the electromagnet 41 is energized, the electromagnet 41 and the armature 42 are attracted, and the armature 42 is separated from the rotating shaft 1, thereby unlocking the rotating shaft 1, and the rotating shaft 1 can rotate relative to the electromagnet 41. At this time, the one-way transmission member 3 does not work, that is, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 are fixedly connected as a whole, and the three rotate together in the second direction, thereby realizing the door opening action.

[0041] In this embodiment, when closing the door, since the one-way transmission member 3 can only rotate in the first direction and cannot rotate in the reverse direction, the door cannot be opened at any position during the closing process, so that the door body remains in a reverse locked state, thereby reducing safety hazards.

[0042] In some embodiments, Figure 3 and Figure 4 As shown, a buffer pad 411 is provided between the electromagnet 41 and the armature 42. The buffer pad 411 can be fixedly connected to the electromagnet 41 or to the armature 42. The buffer pad 411 plays a buffering role to reduce the damage caused by the armature 42 and the electromagnet 41 when they are attracted and collided.

[0043] Optionally, refer to Figure 1-Figure 3 A clamping portion 11 is provided on the circumferential side of the rotating shaft 1, and the clamping portion 11 is fixedly connected to the rotating shaft 1. The armature 42 is located between the clamping portion 11 and the electromagnet 41, and the clamping portion 11 is used to cooperate with the locking structure.

[0044] Specifically, the clamping portion 11 and the rotating shaft 1 can be fixed as a whole by welding, or by integral casting, which is not limited in the present embodiment. The locking structure can be teeth that mesh with each other, wherein a portion of the teeth is fixedly connected to the clamping portion 11, and another portion of the teeth is fixedly connected to the armature 42. When the teeth on the clamping portion 11 mesh with the teeth on the armature 42, the rotating shaft 1 is locked.

[0045] In addition, the locking structure can also be a protrusion and a groove that cooperate with each other. The protrusion can be set on the armature 42, and the groove is set on the clamping part 11. When the protrusion is embedded in the groove, the shaft 1 is locked. Correspondingly, the protrusion can also be set on the clamping part 11, and the groove is set on the armature 42, so as to achieve the purpose of locking the shaft 1.

[0046] Optionally, refer to Figure 1-Figure 3 The armature 42 is provided with a through hole for penetrating the rotating shaft 1 .

[0047] Specifically, the rotating shaft 1 is passed through the armature 42 , and a rotation gap is left between the peripheral side of the rotating shaft 1 and the hole wall of the through hole, so that the armature 42 can reciprocate along the axial direction of the rotating shaft 1 .

[0048] In this embodiment, the rotating shaft 1 is passed through the armature 42 , so that the moving direction of the armature 42 can be limited by the rotating shaft 1 .

[0049] Optionally, refer to Figure 2-Figure 4 A guide member 5 is provided between the electromagnet 41 and the armature 42 , and a guide groove for embedding the guide member 5 is provided along the axial direction of the rotating shaft 1 on the armature 42 and / or the electromagnet 41 .

[0050] Specifically, the guide member 5 may be a guide column, which may be fixedly connected to the electromagnet 41 , and a guide groove for the guide column to be embedded in the armature 42 is provided, thereby limiting the movement direction of the armature 42 .

[0051] In some embodiments, the guide post may also be fixedly connected to the armature 42 , and a guide groove for the guide post to be embedded in is provided on the electromagnet 41 .

[0052] In other embodiments, when there are multiple guide columns, some of them can be fixedly connected to the electromagnet 41, and other parts can be fixedly connected to the armature 42. Correspondingly, guide grooves for the guide columns to be embedded can be respectively provided on the electromagnet 41 and the armature 42.

[0053] Optionally, refer to Figure 1-Figure 3 , and also includes an unlocking component 6, which is connected to the electromagnet 41. Along the axial direction of the rotating shaft 1, the unlocking component 6 is used to drive the armature 42 to move toward a side close to the electromagnet 41.

[0054] Specifically, the unlocking assembly 6 drives the armature 42 to move toward the side close to the electromagnet 41 until the armature 42 is completely separated from the clamping portion 11, so that the locking assembly 4 no longer locks the rotating shaft 1, so that the rotating shaft 1 can rotate relative to the electromagnet 41. At this time, the one-way transmission member 3 does not work, that is, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 are fixedly connected as a whole, and the three rotate together in the second direction to realize the door opening action.

[0055] In this embodiment, when the electromagnet 41 fails and the door cannot be opened, the unlocking assembly 6 can be used to unlock the shaft 1, thereby opening the door to ensure safe passage of users.

[0056] Optionally, refer to Figure 1-Figure 3The unlocking assembly 6 includes an unlocking member 61, which is rotatably connected to the electromagnet 41. The rotation axis of the unlocking member 61 is perpendicular to the axial direction of the rotating shaft 1. Along the axial direction of the rotating shaft 1, the unlocking member 61 is used to drive the armature 42 to move toward the side close to the electromagnet 41.

[0057] Specifically, the unlocking member 61 is rotatably connected to the electromagnet 41, and the end of the unlocking member 61 close to the armature 42 can abut against the armature 42. When the unlocking member 61 rotates, the end of the unlocking member 61 close to the armature 42 can rotate around the hinge axis and push the armature 42 to move toward the side close to the electromagnet 41, so that the armature 42 is completely separated from the clamping portion 11. At this time, the one-way transmission member 3 does not work, that is, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 are fixedly connected as a whole, and the three rotate together in the second direction to realize the door opening action.

[0058] Optionally, refer to Figure 1-Figure 3 The unlocking assembly 6 also includes a pulling member 62 , and the pulling member 62 is connected to the unlocking member 61 .

[0059] Specifically, the pulling member 62 can be made of a steel wire rope, which is fixedly connected to the unlocking member 61 with a bolt. The bolt is provided with a mounting hole. One end of the steel wire rope is inserted into the mounting hole and fixed, thereby connecting the steel wire rope and the unlocking member 61 as a whole.

[0060] The pulling member 62 provides a force-applying part for manual unlocking. The operator can pull the pulling member 62 to apply external force to the unlocking member 61 to rotate the unlocking member 61. The end of the unlocking member 61 close to the armature 42 pushes the armature 42 to move toward the side close to the electromagnet 41, so that the armature 42 is completely separated from the clamping part 11. At this time, the one-way transmission member 3 does not work, that is, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 are fixedly connected as a whole, and the three rotate together along the second direction to realize the door opening action.

[0061] Optionally, refer to Figure 1-Figure 3 The unlocking assembly 6 also includes a travel switch 63, and the travel switch 63 is connected to the unlocking member 61.

[0062] Specifically, the travel switch 63 is connected to the unlocking member 61. When the unlocking member 61 rotates, the travel switch 63 can be triggered. The travel switch 63 sends an unlocking signal to the drive motor, and the drive motor starts to rotate, thereby driving the transmission belt to rotate in the second direction to realize the door opening action.

[0063] Optionally, refer to Figure 1 , Figure 3 and Figure 5The unlocking member 61 includes: a pulling portion 611, the pulling portion 611 is provided with a give way groove for installing the armature 42, and the pulling portion 611 is connected to the pulling member 62; a hinged portion 612, the hinged portions 612 are provided at the opposite ends of the pulling portion 611, the hinged portion 612 is fixedly connected to the pulling portion 611, and the hinged portion 612 is rotatably connected to the electromagnet 41; a triggering portion 613, the triggering portion 613 is fixedly connected to the pulling portion 611, and the triggering portion 613 is movably connected to the travel switch 63.

[0064] Specifically, the pulling part 611, the hinge part 612 and the trigger part 613 are fixedly connected together, and the two hinge parts 612 are respectively connected to the electromagnet 41 through the hinge shaft, and at least one of the hinge shafts is provided with a torsion spring 614, which provides power for the unlocking member 61 to reset. The pulling part 611 is C-shaped, so that the pulling part 611 can be arranged on the peripheral side of the rotating shaft 1 to save space along the axial direction of the rotating shaft 1. The trigger part 613 is L-shaped, and the end of the trigger part 613 away from the pulling part 611 contacts the travel switch 63. When the trigger part 613 moves with the pulling part 611 to the side away from the travel switch 63, the travel switch 63 is triggered, thereby sending an unlocking signal.

[0065] Optionally, refer to Figure 1-Figure 3 The locking device further comprises a mounting seat 7 , and the mounting seat 7 is fixedly connected to the electromagnet 41 .

[0066] Specifically, the mounting seat 7 is L-shaped, and the electromagnet 41 can be fixed to the mounting seat 7 by bolts or directly welded to the mounting seat 7. The mounting seat 7 is used to connect to an external carrier.

[0067] Reference Figure 1 and Figure 6 The embodiment of the utility model further provides a door machine, which includes a transmission belt 8 and the above-mentioned locking device, and the transmission belt 8 is wound around the rotating wheel 2.

[0068] Specifically, the transmission belt 8 can be a synchronous belt or a chain, as long as it can be wound around the rotating wheel 2 and drive the door body to move, and the embodiment of the present application does not limit it. The transmission belt 8 is provided with two clamps 81 for connecting the door body.

[0069] In addition, the door machine also includes a motor bracket 10 and a drive motor 9. The motor bracket 10 is fixed on an external carrier, the drive motor 9 is fixedly connected to the motor bracket 10, the transmission belt 8 is connected to the output end of the drive motor 9, and the drive motor 9 provides power for the rotation of the transmission belt 8.

[0070] In this embodiment, when closing the door, the locking assembly 4 locks the rotating shaft 1 so that the rotating shaft 1 cannot rotate. At this time, the driving motor 9 is started, the one-way transmission member 3 works, and the transmission belt 8, the one-way transmission member 3 and the rotating wheel 2 rotate together in the first direction, thereby realizing the door closing action. When opening the door, the locking assembly 4 unlocks the rotating shaft 1, and the rotating shaft 1 can rotate relative to the locking assembly 4. At this time, the driving motor 9 reverses and the one-way transmission member 3 does not work, that is, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 are fixedly connected as a whole, and the transmission belt 8, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 rotate together in the second direction, thereby realizing the door opening action.

[0071] When the electromagnet 41 fails and the door body cannot be opened, the door body can be manually unlocked. Specifically, the operator pulls the unlocking member 61 to rotate the unlocking member 61, and the end of the unlocking member 61 close to the armature 42 pushes the armature 42 to move to the side close to the electromagnet 41, so that the armature 42 is completely separated from the clamping portion 11. At the same time, the unlocking member 61 triggers the travel switch 63, and the travel switch 63 sends an unlocking signal to the drive motor 9, and the drive motor 9 starts. At this time, the one-way transmission member 3 does not work, that is, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 are fixedly connected as a whole, and the transmission belt 8, the one-way transmission member 3, the rotating shaft 1 and the rotating wheel 2 rotate together in the second direction to realize the door opening action.

[0072] The embodiment of the utility model further provides a transportation facility, which includes the above-mentioned locking device.

[0073] Specifically, transportation facilities include necessary transportation tools (such as vehicles, ships, airplanes, subways, etc.), mechanical equipment, venues, houses (such as stations, warehouses, waiting areas, ticketing venues), etc. The locking device or door machine in the embodiment of the utility model can be applied to traditional transportation tools such as high-speed railways and subways, as well as to the platforms corresponding to these traditional transportation tools. It can also be installed and fixed on emerging small-volume or medium-volume straddle-type transportation tools such as Yunba and Yunrail or their corresponding platforms. In addition, this locking device or door machine can also be applied to transportation systems such as rapid bus systems or smart rails that operate with the help of dedicated lanes, and can also be applied to vertical lifting transportation systems such as elevators.

[0074] In this embodiment, the locking device or door machine is applied to the transportation facility. The door body cannot be opened in the reverse direction at any position during the door closing process, so that the door body remains in a reverse locked state, thereby reducing safety hazards and further improving the safety of the transportation facility.

[0075] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A locking device, characterized in that: include: Rotating shaft; A rotating wheel, wherein the rotating wheel is sleeved on the rotating shaft; A one-way transmission member, the one-way transmission member is disposed between the rotating wheel and the rotating shaft, the one-way transmission member is fixedly connected to the rotating shaft and the rotating wheel respectively, and the one-way transmission member can rotate along a first direction; A locking assembly, wherein the rotating shaft is passed through the locking assembly, and the rotating shaft is rotatable relative to the locking assembly. When the rotating wheel rotates along the first direction, the locking assembly locks the rotating shaft. When the rotating wheel rotates along the second direction, the locking assembly unlocks the rotating shaft. The first direction is opposite to the second direction.

2. The locking device according to claim 1, characterized in that: The locking assembly comprises: an electromagnet, the electromagnet being rotatably connected to the rotating shaft; An armature, the armature is movably connected to the electromagnet along the axial direction of the rotating shaft, and a locking structure capable of cooperating with the rotating shaft is provided on a side of the armature away from the electromagnet, and the locking structure is used to lock the rotating shaft; An elastic member, wherein the elastic member is located between the armature and the electromagnet, one end of the elastic member is connected to the armature, and the other end is connected to the electromagnet, and along the axial direction of the rotating shaft, the elastic member is used to drive the armature to move toward a side away from the electromagnet until the armature is locked and matched with the rotating shaft.

3. The locking device according to claim 2, characterized in that: A clamping portion is provided on the circumferential side of the rotating shaft, the clamping portion is fixedly connected to the rotating shaft, the armature is located between the clamping portion and the electromagnet, and the clamping portion is used to cooperate with the locking structure.

4. The locking device according to claim 2, characterized in that: The armature is provided with a through hole for penetrating the rotating shaft.

5. The locking device according to claim 2, characterized in that: A guide piece is arranged between the electromagnet and the armature, and the armature and / or the electromagnet are provided with a guide groove for the guide piece to be embedded in the axial direction of the rotating shaft.

6. The locking device according to claim 2, characterized in that: It also includes an unlocking component, which is connected to the electromagnet. Along the axial direction of the rotating shaft, the unlocking component is used to drive the armature to move toward a side close to the electromagnet.

7. The locking device according to claim 6, characterized in that: The unlocking assembly includes an unlocking member, which is rotatably connected to the electromagnet. The rotation axis of the unlocking member is perpendicular to the axial direction of the rotating shaft. Along the axial direction of the rotating shaft, the unlocking member is used to drive the armature to move toward a side close to the electromagnet.

8. The locking device according to claim 7, characterized in that: The unlocking assembly further includes a pulling member connected to the unlocking member.

9. The locking device according to claim 8, characterized in that: The unlocking assembly also includes a travel switch, and the travel switch is connected to the unlocking member.

10. The locking device according to claim 9, characterized in that: The unlocking member comprises: A pulling part, wherein the pulling part is provided with a clearance groove for installing the armature, and the pulling part is connected to the pulling member; A hinged part, wherein the hinged parts are provided at opposite ends of the pulling part, the hinged part is fixedly connected to the pulling part, and the hinged part is rotatably connected to the electromagnet; A trigger part is fixedly connected to the pulling part, and the trigger part is movably connected to the travel switch.

11. The locking device according to claim 2, further comprising a mounting seat, wherein the mounting seat is fixedly connected to the electromagnet.

12. A door machine, characterized in that: The invention comprises a transmission belt and the locking device according to any one of claims 1 to 11, wherein the transmission belt is wound around the rotating wheel.

13. A transportation facility, characterized in that: A locking device comprising any one of claims 1 to 11.

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