CN111577732A

CN111577732A - Locking device

Info

Publication number: CN111577732A
Application number: CN202010359357.4A
Authority: CN
Inventors: 王乃文; 王钊
Original assignee: Shenzhen Asia Pacific Aviation Technology Co ltd
Current assignee: Shenzhen Asia Pacific Aviation Technology Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-08-25

Abstract

A locking device comprises a cover plate, a driving block and a stop pin, wherein the cover plate is provided with a first mounting hole and a first stop pin hole; the driving block is provided with a second mounting hole and a second lock pin hole, the second mounting hole is coaxial with the first mounting hole, and the driving block can rotate to a position where the second lock pin hole corresponds to the first lock pin hole; the stop pin can be inserted into the first lock pin hole and the second lock pin hole to lock the rotation of the driving block. The long bevel gear in the locking device is rotationally connected with the cover plate, the driving block can synchronously rotate with the long bevel gear, the cover plate and the driving block are provided with a first locking pin hole and a second locking pin hole, when the driving block rotates to the state that the second locking pin hole corresponds to the first locking pin hole, the stopping pins can be inserted into the first locking pin hole and the second locking pin hole, so that the driving block cannot rotate, and the long bevel gear cannot rotate to keep the current locking state; when the driving is needed, the driving block can be unlocked by rapidly pulling out the stop pin, and the long bevel gear can be driven to rotate by the driving block.

Description

Locking device

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of machinery, in particular to a locking device.

[ background of the invention ]

In aerospace applications, a two-way telescoping mechanism is used. For example, the wings need to be folded and unfolded, one state of the wings is in a folded state, and the other state of the wings is in a state after being turned and unfolded, and for the connection between the components with the changed states, a bidirectional telescopic mechanism is used; when the bidirectional telescopic mechanism is synchronously retracted to the shortest distance, the two connected parts can freely move to turn over; when the two-way telescopic mechanism is turned over in place, the two-way telescopic mechanism synchronously extends outwards and is inserted into the corresponding hole positions, so that the two connected parts cannot move freely and the current state is kept; for the bidirectional telescopic mechanism, when the bidirectional telescopic mechanism is stretched to the longest distance or the shortest distance, in order to maintain the reliability of the locking structure, the bidirectional telescopic mechanism itself needs to be designed with a structure to maintain the locking of the bidirectional telescopic mechanism itself, so that the bidirectional telescopic mechanism cannot automatically change state due to external force, and thus, the acting components can be ensured to maintain a reliable state. For a bidirectional telescopic mechanism, which is usually a gear transmission structure, synchronous telescopic is realized through gear engagement.

[ summary of the invention ]

The present invention is directed to solve the above problems, and provides a lock device that can maintain a bidirectional telescopic mechanism in a locked state.

In order to solve the problems, the invention provides a locking device which is characterized by comprising a cover plate, a driving block and a stop pin, wherein the cover plate is provided with a first mounting hole and a first stop pin hole; the driving block is provided with a second mounting hole and a second lock pin hole, the second mounting hole is coaxial with the first mounting hole, and the driving block can rotate to a position where the second lock pin hole corresponds to the first lock pin hole; the stop pin can be inserted into the first lock pin hole and the second lock pin hole to lock the rotation of the driving block.

Furthermore, the stop pin comprises a plug pin portion, a disengagement prevention portion, a pull ring portion and a chain portion, the plug pin portion can be inserted into the first lock pin hole and the second lock pin hole, the width of the disengagement prevention portion is larger than the aperture of the first lock pin hole and the aperture of the second lock pin hole, the pull ring portion is annular and is arranged at the end of the disengagement prevention portion, one end of the chain portion is connected with the pull ring portion, and the other end of the chain is connected with the cover plate.

Furthermore, balls are arranged on the outer wall of the plug pin part and are linked with the pull ring part, when the pull ring part is pulled upwards, the balls enter the inner part of the plug pin part and do not protrude out of the outer wall of the plug pin part, and when the pull ring part is pressed downwards, the balls are extruded out of the outer wall of the plug pin part and cannot pass through the first lock pin hole and the second lock pin hole.

The long bevel gear comprises a bevel gear part and a long shaft part, the long shaft part penetrates through the first mounting hole and the second mounting hole and extends out of the driving block, the long shaft part is rotatably connected with the cover plate, and the long shaft part is fixedly connected with the driving block; when the driving block is driven, the long shaft portion rotates in the first mounting hole.

Further, a fixing member is sleeved on the long shaft portion, and the fixing member is arranged at one end of the long shaft portion opposite to the bevel gear portion to limit the driving block between the fixing member and the cover plate.

Further, major axis portion includes first connecting portion, second connecting portion and third connecting portion, first connecting portion are cylindricly, its rotate connect in the first mounting hole, the second connecting portion are the square column shape, its spacing connect in the second mounting hole, the third connecting portion are cylindricly, are equipped with the external screw thread on it, its with mounting threaded connection.

Furthermore, the fixing part is a groove-shaped nut provided with an open groove, a third pin hole which is communicated along the radial direction is formed in the third connecting part, a split pin is inserted into the third pin hole of the third connecting part, and two ends of the split pin are located in the open groove of the groove-shaped nut.

The present invention advantageously contributes to effectively solving the above-mentioned problems. The locking device comprises a cover plate, a driving block, a stop pin and a long bevel gear, wherein the long bevel gear is rotationally connected with the cover plate, the driving block is sleeved on the long bevel gear and can synchronously rotate with the long bevel gear, the cover plate and the driving block are provided with a first lock pin hole and a second lock pin hole, and when the driving block rotates to the state that the second lock pin hole corresponds to the first lock pin hole, the stop pin can be inserted into the first lock pin hole and the second lock pin hole to enable the driving block not to rotate, so that the long bevel gear cannot rotate to keep the current locking state; when the driving is needed, the driving block can be unlocked by rapidly pulling out the stop pin, and the long bevel gear can be driven to rotate by the driving block. The locking device has the characteristics of simple structure, convenience in operation, quickness in locking, stability and reliability in structure, has strong practicability and is suitable for being widely popularized.

[ description of the drawings ]

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of a long bevel gear.

Fig. 3 is a schematic structural view of the cover plate.

Fig. 4 is a schematic structural diagram of a driving block.

Fig. 5 is a schematic structural view of the stopper pin and the cover plate.

The locking device comprises a cover plate 10, a first mounting hole 11, a first locking pin hole 12, a driving block 20, a second mounting hole 21, a second locking pin hole 22, a screwing part 23, a long handle part 24, a locking pin 30, a plug pin part 31, a disengagement preventing part 32, a pull ring part 33, a chain part 34, balls 35, a long bevel gear 40, a bevel gear part 41, a long shaft part 42, a first connecting part 421, a second connecting part 422, a third connecting part 423, a third pin hole 424, a fixing part 50 and a split pin 51.

[ detailed description ] embodiments

The following examples are further illustrative and supplementary to the present invention and do not limit the present invention in any way.

As shown in fig. 1 to 5, the locking device of the present invention includes a cover plate 10, a driving block 20, a latch 30, and a long bevel gear 40. Further, it may further include a fixing member 50. The long bevel gear 40 is used for driving the bidirectional telescoping mechanism to synchronously telescope. The latch 30 is used to cooperate with the cover plate 10 and the driving block 20 to lock the movement of the bevel pinion 40 so that it cannot rotate and remains locked.

As shown in fig. 1 and 2, the long bevel gear 40 includes a bevel gear portion 41 and a long shaft portion 42. The tapered teeth 41 and the long shaft 42 are formed integrally and coaxially. The long shaft portion 42 is used to connect the cover plate 10, the driving block 20, and the fixing member 50. The long shaft portion 42 includes a first connection portion 421, a second connection portion 422, and a third connection portion 423 in this order. The first connection portion 421 is close to the tapered tooth portion 41, and the third connection portion 423 is farthest from the tapered tooth portion 41. The first connecting portion 421 is used to connect with the cover plate 10, the second connecting portion 422 is used to connect with the driving block 20, and the third connecting portion 423 is used to connect with the fixing member 50. In this embodiment, the first connecting portion 421 is cylindrical, which facilitates rotation; the second connecting portion 422 is a square column, which can prevent circumferential rotation; the third connecting portion 423 is cylindrical and has an external thread for connecting the fixing member 50. Further, a third pin hole 424 penetrating in the radial direction is provided in the third connecting portion 423, and a cotter pin 51 is inserted therein to restrict the axial movement of the mount 50 and the driving block 20.

As shown in fig. 1 and 3, the cover plate 10 has a plate shape, and is provided with a first mounting hole 11 and a first lock pin hole 12. The first mounting hole 11 has a shape and a size matching the first connection portion 421, and is configured to be inserted into the long shaft portion 42 of the long bevel gear 40 to be rotatably connected to the long bevel gear 40. In this embodiment, the first mounting hole 11 is a cylindrical hole. The first locking pin hole 12 is a circular hole, spaced apart from the first mounting hole 11, and used for inserting the locking pin 30.

As shown in fig. 1 and 4, the driving block 20 is used for linking the long bevel gear 40 to drive the long bevel to rotate and lock the long bevel gear 40. The driving block 20 may be shaped as desired, and may be lapped on the cover plate 10 and attached to the cover plate 10. The driving block 20 is provided with a second mounting hole 21 and a second lock pin hole 22. The second mounting hole 21 has a shape and a size matching the second coupling portion 422, and is adapted to be inserted into the long shaft portion 42 of the long bevel gear 40 so as to be rotatable in synchronization with the long bevel. In this embodiment, the second mounting hole 21 is a square hole, and when the second connecting portion 422 is inserted into the second mounting hole 21, the second connecting portion 422 restricts the second mounting hole 21 and cannot rotate; therefore, when the driving block 20 rotates, the long cone can synchronously rotate; the second mounting hole 21 and the second connecting portion 422 may be in an interference fit or a clearance fit, and may be specifically disposed as required. The second locking pin hole 22 is a circular hole, spaced from the second mounting hole 21, and used for inserting the stop pin 30. The distance between the second locking pin hole 22 and the second mounting hole 21 is the same as the distance between the first locking pin hole 12 and the first mounting hole 11, so that when the first mounting hole 11 is coaxial with the second mounting hole 21, the driving block 20 can be rotated to the position where the second locking pin hole 22 corresponds to the first locking pin hole 12, so that the locking pin 30 can be inserted for locking.

As shown in fig. 1 and 4, to facilitate driving the driving block 20 to rotate the long bevel gear 40, the driving block 20 includes a wrenching portion 23 and a long handle portion 24. The wrenching portion 23 may be conveniently moved by using a wrench or the like, and may be formed in a cylindrical shape, a hexagonal shape, a square shape, or the like. In this embodiment, one end of the wrenching portion 23 is hexagonal and the other end is cylindrical, which facilitates wrenching with various tools. The long handle portion 24 is integrally formed with the screwing portion 23, and extends out of the screwing portion 23, which is convenient for a user to manually screw the driving block 20. In this embodiment, the second mounting hole 21 is provided on the screwing portion 23, and the second lock pin hole 22 is provided on the long shank portion 24.

As shown in fig. 1, the fixing member 50 is used to limit the axial movement of the driving block 20 and prevent the driving block 20 from falling off. The fixing member 50 is sleeved on the third connecting portion 423 with the long taper size, so that the driving block 20 is restricted between the cover plate 10 and the fixing member 50 and cannot move axially. In this embodiment, the fixing member 50 is a slotted nut having an open slot, which cooperates with the cotter pin 51 to limit the axial movement of the fixing member 50 and the driving block 20. Specifically, the fixing member 50 is screwed to the third connecting portion 423, a cotter pin 51 is inserted into a third pin hole 424 of the third connecting portion 423, and two ends of the cotter pin 51 are respectively located in an open slot of the channel nut. The slotted nut and the cotter 51 may be selected from known slotted nuts and cotter 51.

As shown in fig. 1 and 5, the stop pin 30 is inserted into the first and second

lock pin holes

12 and 22 to lock the driving block 20, and further lock the rotation of the long taper to maintain the locked state. The stopper pin 30 includes a plug pin portion 31, a slip-off prevention portion 32, a pull ring portion 33, and a chain portion 34. The end of the plug pin part 31 is tapered, and the plug pin part can be conveniently inserted into the first lock pin hole 12 and the second lock pin hole 22; a movable ball 35 is provided on the outer wall of the proximal end portion of the plug pin portion 31. The width of the slip-off prevention portion 32 is larger than the diameters of the first and second

lock pin holes

12 and 22, and it cannot pass through the first and second

lock pin holes

12 and 22. The pull ring part 33 is movably arranged at the end part of the anti-drop part 32, when the pull ring part 33 is pulled upwards, the pull ring part can drive the balls 35 to enable the balls 35 to enter the inner part of the plug pin part 31 and not to protrude out of the outer wall of the plug pin part 31, and therefore the plug pin part 31 can be extracted from the first lock pin hole 12 and the second lock pin hole 22; when the pull ring part 33 is pressed downwards, it can drive the balls 35 to make the balls 35 partially protrude out of the outer wall of the plug pin part 31, so that the plug pin part 31 can not keep the current locking state through the first and second lock pin holes 12 and 22. The structure of the pull ring part 33 linking the balls 35 can refer to the known technology. The chain portion 34 is used to prevent the retaining pin 30 from being lost, and has one end connected to the link portion 33 and the other end connected to the cover plate 10. The provision of the chain portion 34 prevents the retaining pin 30 from being lost when the retaining pin 30 is not inserted into the first and second locking pin holes 12, 22.

Thus, the locking device of the present invention is formed: the long bevel gear 40 is inserted into the first mounting hole 11 of the cover plate 10 and forms a rotary connection with the cover plate 10; the long bevel gear 40 is a driving gear which can drive a bidirectional telescopic mechanism matched with the long bevel gear to synchronously extend and retract; the driving block 20 is sleeved on the second connecting part 422 of the long bevel gear 40 and can synchronously rotate with the long bevel gear 40; the fixing member 50 is sleeved on the third connecting portion 423 of the long bevel gear 40, and can limit the axial movement of the driving block 20; the cover plate 10 is provided with a first lock pin hole 12, the driving block 20 is provided with a second lock pin hole 22, when the first lock pin hole 12 and the second lock pin hole 22 are opposite, the lock pin 30 can be inserted into the first lock pin hole 12 and the second lock pin hole 22, and the ball 35 and the anti-falling part 32 on the lock pin 30 can prevent the lock pin 30 from falling off, so that the driving block 20 can not rotate, the long bevel gear 40 can not rotate, and the locking state can be maintained; when the retaining pin 30 is pulled up on the pull ring portion 33, the balls 35 enter the plug portion 31 without restricting the axial movement of the plug portion 31, and the retaining pin 30 can be withdrawn from the first and second lock pin holes 12 and 22, and then the driving block 20 can be driven to rotate by using a tool such as a wrench, and the long bevel gear 40 can be driven to rotate.

The locking device has the advantages of simple structure, convenient operation, quick locking, stable and reliable structure, strong practicability and suitability for wide popularization.

While the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the spirit of the invention.

Claims

1. A locking device, characterized in that it comprises:

the cover plate (10) is provided with a first mounting hole (11) and a first lock pin hole (12);

the driving block (20) is provided with a second mounting hole (21) and a second lock pin hole (22), the second mounting hole (21) is coaxial with the first mounting hole (11), and the driving block (20) can rotate to the position where the second lock pin hole (22) corresponds to the first lock pin hole (12);

and the stop pin (30) can be inserted into the first lock pin hole (12) and the second lock pin hole (22) to lock the rotation of the driving block (20).

2. The locking device according to claim 1, characterized in that the stop pin (30) comprises a plug pin portion (31), a slip-off prevention portion (32), a pull ring portion (33) and a chain portion (34), the plug pin portion (31) is insertable into the first and second lock pin holes (12, 22), the slip-off prevention portion (32) has a width larger than the hole diameter of the first and second lock pin holes (12, 22), the pull ring portion (33) has a ring shape and is provided at an end of the slip-off prevention portion (32), one end of the chain portion (34) is connected with the pull ring portion (33), and the other end of the chain is connected with the cover plate (10).

3. The locking device according to claim 2, wherein a ball (35) is provided on an outer wall of the plug pin portion (31), the ball (35) is interlocked with the pull ring portion (33), when the pull ring portion (33) is pulled upward, the ball (35) enters an inner portion of the plug pin portion (31) without protruding from the outer wall of the plug pin portion (31), and when the pull ring portion (33) is pressed downward, the ball (35) is extruded from the outer wall of the plug pin portion (31) and cannot pass through the first and second lock pin holes (12, 22).

4. The locking device according to claim 1, further comprising a long bevel gear (40), wherein the long bevel gear (40) comprises a bevel gear portion (41) and a long shaft portion (42), the long shaft portion (42) passes through the first mounting hole (11) and the second mounting hole (21) and extends out of the driving block (20), the long shaft portion (42) is rotatably connected with the cover plate (10), and the long shaft portion (42) is fixedly connected with the driving block (20); when the driving block (20) is driven, the long shaft portion (42) rotates in the first mounting hole (11).

5. The locking device according to claim 4, characterized in that a fixing member (50) is fitted over the long shaft portion (42), and the fixing member (50) is provided at an end of the long shaft portion (42) opposite to the tapered tooth portion (41) to restrain the driving block (20) between the fixing member (50) and the cover plate (10).

6. The locking device according to claim 5, wherein the long shaft portion (42) comprises a first connecting portion (421), a second connecting portion (422) and a third connecting portion (423), the first connecting portion (421) is cylindrical and rotatably connected to the first mounting hole (11), the second connecting portion (422) is square-cylindrical and limitedly connected to the second mounting hole (21), and the third connecting portion (423) is cylindrical and provided with an external thread which is in threaded connection with the fixing member (50).

7. The locking apparatus according to claim 6, wherein the fixing member (50) is a slot type nut having an open slot, a third pin hole (424) radially penetrating is provided in the third connecting portion (423), a split pin (51) is inserted into the third pin hole (424) of the third connecting portion (423), and both ends of the split pin (51) are located in the open slot of the slot type nut.