A straight line locking system with emergency tongue break

Abstract

The utility model discloses a linear locking system with emergency tongue breaking, including the casing, the hollow setting in the casing interior, including locking cavity, drive cavity and transmission cavity, drive cavity inside horizontal fixed mounting has a motor reduction gearbox, locking cavity inside horizontal activity has a screw rod, locking cavity one end is provided with the locking mouth, locking cavity inside is provided with a lock pin in the locking mouth place activity, the hollow setting in the screw rod, the lock pin one end horizontal activity card sets up in the screw rod inside, the screw rod is connected with a screw rod nut through the thread transmission on the screw rod, and the screw rod nut is rotationally arranged in the locking cavity, and the transmission cavity is rotationally connected with a primary gear, and the output end transmission of primary gear and motor reduction gearbox is connected, and primary gear and screw rod nut are connected through the thread meshing transmission, and the break slot is set up in the bayonet of the other end of lock pin. The utility model has the advantages that the impact force can break the lock pin from the break slot position under the emergency, does not affect the blade operation and safety, and the lock pin replacement is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of locking mechanism technology, and in particular to a linear locking system with an emergency break tongue. Background Technology

[0002] If the rotating blades rotate during land-based operations, they can easily damage the surrounding mechanisms. A locking mechanism is required to lock and secure them. When the blades are rotating, the locking pin retracts and releases. In an emergency, if the locking pin accidentally extends straight out and contacts the locking teeth of the rotating blade, it will pose a significant safety hazard. In severe cases, it can cause serious damage to the rotating blade mechanism or the locking mechanism, resulting in a serious safety accident. Utility Model Content

[0003] The purpose of this invention is to provide a linear locking system with an emergency break tongue. In an emergency, when the locking pin accidentally extends linearly and contacts the rotating blade locking teeth, the impact force generated by the high-speed rotating blade locking teeth can break the locking pin from the break-off groove position without affecting the operation and safety of the blade. At the same time, the replacement of the locking pin is more convenient.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A linear locking system with an emergency tongue break is characterized by comprising a housing, the housing being hollow inside, including an upper locking cavity, a lower driving cavity, and a transmission cavity connecting the locking cavity and the driving cavity. A motor reduction gearbox is horizontally fixedly installed in the driving cavity. A lead screw is horizontally movable inside the locking cavity. A locking port is opened at one end of the locking cavity. A locking pin is movably disposed at the locking port inside the locking cavity. The lead screw is hollow inside. One end of the locking pin is horizontally movable and locked inside the lead screw. A lead screw nut is threadedly connected to the lead screw. The lead screw nut is rotatably limited within the locking cavity. A primary gear is rotatably connected to the transmission cavity. The primary gear is rotatably connected to the output end of the motor reduction gearbox. The primary gear and the lead screw nut are threadedly meshed and rotatably connected. A locking slot is provided at the other end of the locking pin to engage with the locking teeth of a rotating blade. A break-off groove is provided at the locking slot at the other end of the locking pin.

[0005] Preferably, the housing includes a connecting seat and a cover. The connecting seat is connected and fixed to an external base by four sets of bolts, and the cover and the connecting seat are laser welded together.

[0006] Preferably, a PCB board is provided at the bottom of the drive cavity, the PCB board is electrically connected to the motor gearbox, and a connector penetrating the housing is provided at the bottom of the PCB board.

[0007] Preferably, a coupling is also connected inside the transmission cavity of the primary gear. The coupling and the primary gear are integrated by injection molding. A rolling bearing is also riveted to the end of the coupling inside the transmission cavity.

[0008] Preferably, the other end of the lead screw is rigidly connected to a guide rod via a pin, and the locking cavity has a vent at the other end of the guide rod, and a vent valve is installed at the vent.

[0009] Preferably, a slotted nut is fixedly installed on the other end of the guide rod, and a thrust spring is sleeved on the guide rod between the slotted nut and the longitudinal inner wall of the locking cavity.

[0010] Preferably, a compression spring is provided inside the lead screw between the guide rod and the locking pin.

[0011] Preferably, both ends of the lead screw nut are movably disposed within the locking cavity via washers and needle roller bearings.

[0012] Preferably, the contact point between the connector and the plug in the housing is sealed with a sealing ring and structural adhesive.

[0013] In summary, the beneficial effects of this utility model are as follows: in an emergency, when the locking pin accidentally extends in a straight line and contacts the rotating blade locking tooth, the impact force generated by the high-speed rotating blade locking tooth can break the front end of the locking pin from the break-off groove position, without affecting the operation and safety of the blade, and at the same time, the replacement of the locking pin is more convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall external structure of this utility model; Figure 2 This is a front view of the external structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. These embodiments do not constitute a limitation on this utility model.

[0016] The technical or scientific terms used in this application description should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. Terms indicating direction, such as "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," used in this application description are only used to indicate relative directions or positional relationships, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation of this application. Terms such as "first," "second," "third," and similar terms used in this application description are for descriptive purposes only, used to distinguish different components, and should not be construed as indicating or implying relative importance.

[0017] The words “a,” “one,” or “the” used in this application description should not be construed as an absolute limitation on quantity, but rather as indicating the presence of at least one. The words “including” or “comprising” used in this application description mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0018] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0020] like Figures 1 to 3The linear locking system with an emergency break tongue shown includes a housing 1, which is hollow inside and includes an upper locking cavity 2, a lower driving cavity 3, and a transmission cavity 4 connecting the locking cavity 2 and the driving cavity 3. A motor reduction gearbox 5 is horizontally fixed in the driving cavity 3. A lead screw 6 is horizontally movable inside the locking cavity 2. A locking port 7 is opened at one end of the locking cavity 2. A locking pin 9 is movably arranged at the locking port 7 inside the locking cavity 2. The lead screw 6 is hollow inside. One end of the locking pin 9 is horizontally movable and locked inside the lead screw 6. A lead screw nut 7 is threadedly connected to the lead screw 6. The lead screw nut 7 is rotatably limited in the locking cavity 2. A primary gear 8 is rotatably connected in the transmission cavity 4. The primary gear 8 is driven by the output end of the motor reduction gearbox 5. The primary gear 8 and the lead screw nut 7 are threadedly meshed and driven. The other end of the locking pin 9 is provided with a locking slot to engage with the locking teeth of the rotating blade. A break-off groove 10 is opened at the locking slot at the other end of the locking pin 9.

[0021] The housing 1 includes a connecting seat 11 and a cover 12. The connecting seat 11 is connected and fixed to the external base by four sets of bolts 13, and the cover 12 is laser welded to the connecting seat 11.

[0022] A PCB board 14 is provided at the bottom of the drive cavity 3. The PCB board 14 is electrically connected to the motor gearbox 5. A connector 15 that penetrates the housing 1 is provided at the bottom of the PCB board 14. The opening and closing of the motor gearbox 5 can be realized through the PCB board 14, thereby controlling the extension and extension distance of the locking pin 9.

[0023] Inside the transmission cavity 4, the primary gear 8 is also connected to a coupling 16. The coupling 16 and the primary gear 8 are integrated by injection molding. The end of the coupling 16 is also riveted to a rolling bearing 17 inside the transmission cavity 4.

[0024] The other end of the lead screw 6 is rigidly connected to the guide rod 19 by the pin 18. The locking cavity 2 has a vent 20 at the other end of the guide rod 19. A vent valve 21 is installed at the vent 20. The vent valve 21 can effectively prevent the guide rod 19 from getting trapped during movement.

[0025] A slotted nut 22 is fixedly installed on the other end of the guide rod 19, and a push spring 23 is sleeved on the guide rod 19 between the slotted nut 22 and the longitudinal inner wall of the locking cavity 2.

[0026] A compression spring 24 is provided inside the lead screw 6 between the guide rod 19 and the locking pin 9. The compression spring 24 always presses the locking pin 9 inside the lead screw 6 tightly.

[0027] Both ends of the lead screw nut 7 are movably mounted in the locking cavity 2 via washers 25 and needle roller bearings 26.

[0028] The contact point between the connector 11 and the connector 15 in the housing 1 is sealed by a sealing ring 27 and structural adhesive 28.

[0029] The working principle of this application is as follows: The PCB board 14 sends a signal to drive the motor reduction gearbox 5 in the locking cavity 2. The motor reduction gearbox 5 drives the first-stage gear 8 to rotate through the coupling 16. The first-stage gear 8 drives the lead screw nut 7 to rotate through the threaded transmission. Due to the limit setting of the lead screw nut 7, the lead screw nut 7 drives the lead screw 6 transmission structure, driving the lead screw 6 to move in the horizontal direction. Since the locking pin 9 is installed in the lead screw 6, the compression spring 24 always presses the locking pin 9 tightly, realizing the extension and retraction of the locking pin 9. In the extended state of the locking pin 9, the rotating blade locks the teeth. If the rotation is still in a high-speed rotation state, the impact force generated by the locking teeth can break the front end of the locking pin 8 from the break-off groove position, realizing emergency tongue breakage and avoiding more serious consequences.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. A linear locking system with an emergency break-off tongue, characterized in that, The device includes a housing with a hollow interior. It comprises an upper locking cavity, a lower driving cavity, and a transmission cavity connecting the locking cavity and the driving cavity. A motor gearbox is horizontally fixed inside the driving cavity. A lead screw moves horizontally within the locking cavity. A locking port is provided at one end of the locking cavity, and a locking pin is movably disposed at the locking port. The lead screw is hollow inside, and one end of the locking pin is horizontally movably engaged within it. A lead screw nut is threadedly connected to the lead screw, and the lead screw nut is rotatably positioned within the locking cavity. A primary gear is rotatably connected within the transmission cavity, and the primary gear is connected to the output end of the motor gearbox. The primary gear and the lead screw nut are threadedly engaged. The other end of the locking pin has a locking slot that engages with the locking teeth of a rotating blade, and a separation groove is provided at the locking slot on the other end of the locking pin.

2. A linear locking system with an emergency break tongue according to claim 1, characterized in that: The housing includes a connecting seat and a cover. The connecting seat is connected and fixed to an external base by four sets of bolts, and the cover and the connecting seat are connected by laser welding.

3. A linear locking system with an emergency break tongue according to claim 1, characterized in that: A PCB board is provided at the bottom of the drive cavity. The PCB board is electrically connected to the motor gearbox. A connector penetrating the housing is provided at the bottom of the PCB board.

4. A linear locking system with an emergency break tongue according to claim 1, characterized in that: The primary gear is internally connected to a coupling within the transmission cavity. The coupling and the primary gear are integrated using injection molding. A rolling bearing is riveted to the end of the coupling within the transmission cavity.

5. A linear locking system with an emergency break tongue according to claim 1, characterized in that: The other end of the lead screw is rigidly connected to a guide rod via a pin. The locking cavity has a vent at the other end of the guide rod, and a vent valve is installed at the vent.

6. A linear locking system with an emergency break tongue according to claim 5, characterized in that: A slotted nut is fixedly installed on the other end of the guide rod, and a push spring is sleeved on the guide rod between the slotted nut and the longitudinal inner wall of the locking cavity.

7. A linear locking system with an emergency break tongue according to claim 5, characterized in that: A compression spring is provided inside the lead screw between the guide rod and the locking pin.

8. A linear locking system with an emergency break tongue according to claim 1, characterized in that: Both ends of the lead screw nut are movably mounted in the locking cavity via washers and needle roller bearings.

9. A linear locking system with an emergency break tongue according to claim 1, characterized in that: The connection point between the connector and the plug in the housing is sealed with a sealing ring and structural adhesive.

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