Plug door lock and unlock components

Abstract

The present invention discloses a plug-in door locking and unlocking assembly, comprising a fixed frame, a sliding member, a locking member and an electric drive mechanism. The fixed frame is fixed on a door drive mechanism frame of a vehicle, a slide rail is arranged on the fixed frame, the sliding member is slidably arranged on the slide rail, one end of the sliding member is fixedly connected to the plug-in door of the vehicle, when the plug-in door is closed, the sliding member slides to the first end of the slide rail, the locking member has a locking position and an unlocking position, when the locking member is in the locking position, the locking member presses the sliding member against the first end of the slide rail, when the locking member is in the unlocking position, the sliding member can move in the slide rail, the electric drive mechanism is connected to the locking member, and can drive the locking member to switch between the locking position and the unlocking position. The plug-in door locking and unlocking assembly provided by the present invention adopts an electric drive mechanism to provide a locking force, which is independent of the air source power of the locking cylinder, realizes double locking of the vehicle door, reduces accidents, and greatly improves the safety of the vehicle door.

Description

Technical Field

[0001] The invention relates to the field of plug-in doors, and in particular to a plug-in door locking and unlocking component. Background Art

[0002] At present, the plug doors on buses are generally pneumatic plug doors. The door locking force of pneumatic plug doors is provided by the cylinder. In order to ensure that the door is not opened by external force during driving, the door locking force needs to be large enough. However, regulations require that the anti-pinch force when closing the door should be less than 150N, so the locking force of the cylinder cannot be too large, which creates a contradiction between the two. If the emergency valve is accidentally opened during driving, the cylinder will be physically deflated, its locking force will fail, and the door cannot be locked, creating a safety hazard. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a Sierra door locking and unlocking assembly, which can lock the Sierra door and completely prevent the Sierra door from being opened during driving.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A Sierra door locking and unlocking assembly is provided, comprising a fixed frame, a sliding member, a locking member and an electric drive mechanism, wherein the fixed frame is fixed on a door drive mechanism frame of a vehicle, and a slide rail is provided on the fixed frame; the sliding member is slidably provided on the slide rail, and one end of the sliding member is fixedly connected to the Sierra door of the vehicle, and when the Sierra door is closed, the sliding member slides to the first end of the slide rail; the locking member has a locking position and an unlocking position, and when the locking member is located at the locking position, the locking member presses the sliding member against the first end of the slide rail, and when the locking member is located at the unlocking position, the sliding member can move within the slide rail; the electric drive mechanism is connected to the locking member, and can drive the locking member to switch between the locking position and the unlocking position.

[0006] As a preferred solution of the Sierra door locking and unlocking assembly, a first rotating shaft is provided at one end of the locking member, and the first rotating shaft is fixedly connected to the side of the fixed frame away from the door drive mechanism frame, and the other end of the locking member is provided with a protrusion that presses against the sliding member, and the locking member can rotate around the first rotating shaft to drive the protrusion to rotate, and the rotating protrusion can switch between the locked position and the unlocked position.

[0007] As a preferred solution of the Sierra door locking and unlocking assembly, the locking member is provided with a first elastic member for resetting, one end of the first elastic member is fixed to the locking member, the other end of the first elastic member is fixed to the fixing frame, and the first elastic member always has a movement tendency to drive the locking member to move toward the unlocking position.

[0008] As a preferred solution of the Sierra door locking and unlocking assembly, the electric drive mechanism includes a cam and a driving member, the cam is set on the fixed frame through a second rotating shaft, the driving member is connected to the cam, and can drive the cam to rotate around the second rotating shaft, when the cam rotates to the first position, it can drive the locking member to the locking position, and when the cam rotates to the second position, it can drive the locking member to the unlocking position.

[0009] As a preferred solution of the Sierra door locking and unlocking assembly, the driving member includes an electromagnet, a mating member and a connecting member, the connecting member respectively connects the mating member and the cam, the mating member is spaced apart on one side of the electromagnet, when the electromagnet is in an initial position, the electromagnet is spaced apart from the mating member, the cam is in the second position, when the electromagnet is energized, the electromagnet moves to engage with the mating member, and the electromagnet pulls the cam from the second position to the first position through the connecting member.

[0010] As a preferred solution of the Sierra door locking and unlocking assembly, a second elastic member for resetting is provided on the cam, one end of the second elastic member is fixed to the fixing frame, the other end of the second elastic member is fixed to the cam, and the second elastic member always has a movement tendency to drive the cam to rotate toward the second position.

[0011] As a preferred solution of the Sierra door locking and unlocking assembly, the connecting member is a flexible member, a first pin is fixed on the fixed frame, one end of the flexible member is connected to the cam, and the other end of the flexible member bypasses the first pin and is connected to the mating member, and the flexible member is always in contact with the surface of the first pin.

[0012] As a preferred solution of the plug door locking and unlocking assembly, the flexible member is a steel wire rope.

[0013] As a preferred solution of the Sierra door locking and unlocking assembly, a sliding groove is provided on the sliding rail along the moving direction of the sliding member, and the end of the sliding member away from the Sierra door is inserted into the sliding groove. An avoidance hole is provided on the sliding rail corresponding to the locking member, and the avoidance hole is connected to the sliding groove. Part of the locking member can pass through the avoidance hole and extend into the sliding groove to press tightly against the sliding member.

[0014] As a preferred solution of the Sierra door locking and unlocking assembly, the sliding member includes a sliding shaft, a bearing is sleeved on the sliding shaft, and the bearing is located in the sliding groove.

[0015] The beneficial effects of the present invention are as follows: the Sierra door locking and unlocking assembly provided by the present invention adopts an electric drive mechanism to provide locking force, which is independent of the air source power of the locking cylinder, realizes double locking of the door, reduces accidents, and greatly improves the safety of the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the locking state structure of the plug sliding door locking and unlocking assembly described in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the fixing frame structure of the plug door locking and unlocking assembly described in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the cam structure of the plug door locking and unlocking assembly described in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the locking member structure of the plug door locking and unlocking assembly described in an embodiment of the present invention.

[0021] In the figure:

[0022] 1. Fixed frame; 11. Slide groove; 12. First pin; 2. Locking member; 21. First rotating shaft; 22. Second pin; 23. Protrusion; 3. Cam; 31. Second rotating shaft; 32. First connecting position; 4. Connecting member; 5. Driving member; 51. Matching member; 511. Second connecting position; 6. Sliding member; 61. Sliding shaft; 62. Bearing. DETAILED DESCRIPTION

[0023] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be 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.

[0025] like Figures 1 to 4 As shown, in this embodiment, a Sierra door locking and unlocking assembly described in the present invention includes a fixed frame 1, a sliding member 6, a locking member 2 and an electric drive mechanism. The fixed frame 1 is fixed on the door drive frame of the vehicle. A slide rail is provided on the fixed frame 1. The sliding member 6 is slidably set on the slide rail. One end of the sliding member 6 is fixedly connected to the Sierra door of the vehicle. When the Sierra door is closed, the sliding member 6 slides to the first end of the slide rail. The locking member 2 has a locking position and an unlocking position. When the locking member 2 is in the locking position, the locking member 2 presses the sliding member 6 against the first end of the slide rail. When the locking member 2 is in the unlocking position, the sliding member 6 can slide in the slide rail. The electric drive mechanism is connected to the locking member 2 and can drive the locking member 2 to switch between the locking position and the unlocking position.

[0026] The Sierra door locking and unlocking assembly provided by the present invention adopts an electric drive mechanism to provide locking force to lock the door. Different from the cylinder drive mode, the emergency valve will not be accidentally opened and the cylinder will not be deflated, causing the locking force to fail during driving, thereby reducing the occurrence of accidents and greatly improving the safety of the door.

[0027] Preferably, the slide rail is provided with a slide groove 11 along the moving direction of the sliding member 6, and the end of the sliding member 6 away from the plug door is inserted into the slide groove 11. The slide rail is provided with an avoidance hole corresponding to the locking member 2, and the avoidance hole is connected to the slide groove 11. Part of the locking member 2 can pass through the avoidance hole and extend into the slide groove 11 to press against the sliding member 6. By providing the avoidance hole, it is possible to avoid position interference between the locking member 2 and the slide groove 11, which causes the locking member 2 to be unable to move to the locking position, and ensure that the locking member 2 can move to the locking position to press against the sliding member 6.

[0028] Furthermore, the sliding member 6 includes a sliding shaft 61, on which a bearing 62 is sleeved, and the bearing 62 is located in the slide groove 11. The arrangement of the bearing 62 can not only reduce the friction between the sliding shaft 61 and the slide groove 11, so that the sliding shaft 61 can slide more smoothly in the slide groove 11, but also extend the service life of the sliding shaft 61 and the slide groove 11.

[0029] Preferably, a first rotating shaft 21 is provided at one end of the locking member 2, and the first rotating shaft 21 is fixedly connected to the side of the fixing frame 1 away from the door drive frame. A protrusion 23 is provided at the other end of the locking member 2 to press against the sliding member 6. The locking member 2 can rotate around the first rotating shaft 21 to drive the protrusion 23 to rotate. The rotating protrusion 23 can switch between the locking position and the unlocking position. When the locking member 2 is in the locking position, the protrusion 23 presses the sliding member 6 against the first end of the slide rail. By providing the protrusion 23, the size of the locking member 2 can be reduced, and the weight of the locking member 2 can be reduced while saving materials, thereby reducing the force of moving the locking member 2 and achieving the effect of saving energy.

[0030] Optionally, the protrusion 23 is a sharp angle, and a second pin 22 is protruding from the locking member 2. The second pin 22 is connected to the electric drive mechanism. The provision of the second pin 22 can reduce the thickness of the locking member 2, further reduce the size and weight of the locking member 2, and further save materials and energy.

[0031] Preferably, the locking member 2 is provided with a first elastic member for resetting, one end of the first elastic member is fixed to the locking member 2, and the other end of the first elastic member is fixed to the fixing frame 1, and the first elastic member always has a movement tendency to drive the first elastic member to move toward the unlocking position. By providing the first elastic member, it can be ensured that the locking member 2 can be returned to the unlocking position when the plug door does not need to be locked, so that the door can be opened smoothly.

[0032] In this embodiment, the electric drive mechanism includes a cam 3 and a driving member 5. The cam 3 is arranged on the fixing frame 1 through a second rotating shaft 31. The driving member 5 is connected to the cam 3 and can drive the cam 3 to rotate around the second rotating shaft 31. When the cam 3 rotates to the first position, it can drive the locking member 2 to be located in the locking position. When the cam 3 rotates to the second position, the locking member 2 can be located in the unlocking position. A second elastic member for resetting is provided on the cam 3. One end of the second elastic member is fixed to the fixing frame 1, and the other end of the second elastic member is fixed to the cam 3. The second elastic member always has a movement tendency to drive the cam 3 to rotate toward the second position. By providing the second elastic member, it can be ensured that the cam 3 can return to the second position when there is no need to lock the plug door, thereby ensuring that the locking member 2 can return to the unlocking position, so that the door can be opened smoothly.

[0033] Specifically, the outer peripheral side wall of the second pin 22 abuts against the cam 3. When the cam 3 rotates from the second position to the first position, the second pin 22 rotates around the central axis of the first rotating shaft 21 to drive the protrusion 23 to be inserted into the slide groove 11. The protrusion 23 presses the sliding member 6 against the first end of the slide groove 11.

[0034] Preferably, the driving member 5 includes an electromagnet, a matching member 51 and a connecting member 4. The connecting member 4 is connected to the matching member 51 and the cam 3 respectively. The matching member 51 is arranged on one side of the electromagnet. When the matching member 51 is in the initial position, the electromagnet and the matching member 51 are spaced apart. At this time, the cam 3 is in the second position and the locking member 2 is in the unlocking position. When the electromagnet is energized, the matching member 51 moves to engage with the electromagnet. The matching member 51 pulls the cam 3 from the second position to the first position through the connecting member 4, and the cam 3 drives the locking member 2 to rotate from the unlocking position to the locking position. Since the matching member 51 always remains engaged with the electromagnet when the plug door is locked, connecting the matching member 51 and the cam 3 through the connecting member 4 can prevent the cam 3 from directly impacting the electromagnet, thereby extending the service life of the electromagnet.

[0035] Furthermore, the connecting member 4 is a steel wire rope, a first pin 12 is fixed on the fixing frame 1, a first connecting position 32 is provided on the cam 3, a second connecting position 511 is provided on the matching member 51, one end of the steel wire rope is connected to the first connecting position 32 of the cam 3, and the other end of the steel wire rope bypasses the first pin 12 and connects to the second connecting position 511 of the matching member 51, the steel wire rope is always in contact with the surface of the first pin 12, and when the cam 3 is in the second position, the position projections of the second rotating shaft 31, the first connecting position 32 and the first pin 12 on the side of the fixing frame 1 away from the door drive mechanism frame are not colinear. Through the cooperation of the steel wire rope and the first pin 12, it is not necessary to install the second rotating shaft 31 on the cam 3 in the moving direction of the matching member 51, saving the installation area of ​​the Sierra door locking and unlocking assembly.

[0036] Optionally, a groove is provided at the fitting position between the first pin 12 and the steel wire rope, and the groove can limit the moving direction of the steel wire rope to avoid friction between the steel wire rope and the first pin 12 causing the steel wire rope to shift up and down, thereby reducing the transmission effect of the steel wire rope.

[0037] Optionally, a groove wheel is provided on the first pin 12, one end of the steel wire rope is connected to the first connection position 32 of the cam 3, and the other end of the steel wire rope passes over the groove wheel on the first pin 12 and is connected to the second connection position 511 of the matching member 51. By providing the groove wheel, the wear between the steel wire rope and the first pin 12 can be reduced, and the service life of the steel wire rope and the first pin 12 can be extended.

[0038] In other embodiments, the electric drive device may be a motor and a gear mechanism, and the motor drives the gear to rotate so that the locking member 2 moves between the locking position and the unlocking position to realize the locking function and the unlocking function of the plug sliding door locking and unlocking assembly. According to the needs of different vehicles, a suitable electric drive device is selected to ensure that the plug sliding door can be locked during driving through the plug sliding door locking and unlocking assembly provided by the present invention, thereby ensuring the driving safety of the vehicle.

[0039] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", etc., and the like, are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0041] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0042] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A plug door locking and unlocking assembly, characterized in that: include: A fixing frame, the fixing frame is fixed on the door drive frame of the vehicle, and a slide rail is provided on the fixing frame; A sliding member, wherein the sliding member is slidably disposed on the slide rail, one end of the sliding member is fixedly connected to the sliding plug door of the vehicle, and when the sliding plug door is closed, the sliding member slides to the first end of the slide rail; A locking member, wherein the locking member has a locking position and an unlocking position. When the locking member is at the locking position, the locking member presses the sliding member against the first end of the slide rail. When the locking member is at the unlocking position, the sliding member can move within the slide rail. an electric drive mechanism, the electric drive mechanism being connected to the locking member and capable of driving the locking member to switch between the locking position and the unlocking position; A first rotating shaft is provided at one end of the locking member, and the first rotating shaft is fixedly connected to the side of the fixing frame away from the door drive mechanism frame, and a protrusion is provided at the other end of the locking member to abut against the sliding member, and the locking member can rotate around the first rotating shaft to drive the protrusion to rotate, and the rotating protrusion can switch between the locking position and the unlocking position; The locking member is provided with a first elastic member for resetting, one end of the first elastic member is fixed to the locking member, the other end of the first elastic member is fixed to the fixing frame, and the first elastic member always has a movement tendency to drive the locking member to move toward the unlocking position; The electric drive mechanism comprises a cam and a driving member, wherein the cam is arranged on the fixing frame via a second rotating shaft, and the driving member is connected to the cam and can drive the cam to rotate around the second rotating shaft, and when the cam rotates to a first position, the locking member can be driven to be located at the locking position, and when the cam rotates to a second position, the locking member can be driven to be located at the unlocking position; The driving member comprises an electromagnet, a matching member and a connecting member, wherein the connecting member is respectively connected to the matching member and the cam, the matching member is arranged at a distance on one side of the electromagnet, when the matching member is at the initial position, the electromagnet is spaced from the matching member, and the cam is at the second position, when the electromagnet is energized, the matching member moves to be attracted to the electromagnet, and the matching member pulls the cam to rotate from the second position to the first position through the connecting member; The connecting member is a flexible member, a first pin is fixed on the fixing frame, one end of the flexible member is connected to the cam, and the other end of the flexible member bypasses the first pin and is connected to the matching member, and the flexible member is always in contact with the surface of the first pin.

2. The plug door locking and unlocking assembly according to claim 1, characterized in that: The cam is provided with a second elastic member for resetting, one end of the second elastic member is fixed to the fixing frame, the other end of the second elastic member is fixed to the cam, and the second elastic member always has a movement tendency to drive the cam to rotate toward the second position.

3. The plug door locking and unlocking assembly according to claim 1, characterized in that: The flexible member is a steel wire rope.

4. The plug door locking and unlocking assembly according to any one of claims 1 to 3, characterized in that: A sliding groove is provided on the sliding rail along the moving direction of the sliding member, and the end of the sliding member away from the Sierra door is inserted into the sliding groove. An avoidance hole is provided on the sliding rail corresponding to the locking member, and the avoidance hole is connected to the sliding groove. Part of the locking member can pass through the avoidance hole and extend into the sliding groove to press against the sliding member.

5. The plug door locking and unlocking assembly according to claim 4, characterized in that: The sliding member comprises a sliding shaft, a bearing is sleeved on the sliding shaft, and the bearing is located in the sliding groove.

Images