CN111593951A

CN111593951A - Rotary cover lock device

Info

Publication number: CN111593951A
Application number: CN202010561508.4A
Authority: CN
Inventors: 王乃文; 陈航栖
Original assignee: Shenzhen Asia Pacific Aviation Technology Co ltd
Current assignee: Shenzhen Asia Pacific Aviation Technology Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-08-28

Abstract

A rotary cover lock device is characterized by comprising a base, a rotating assembly, a slider-crank mechanism, a support and a lock rod, wherein the rotating assembly is rotatably arranged on the base; one end of the slider-crank mechanism is connected with the rotating assembly, and the other end of the slider-crank mechanism is connected to the base in a limiting manner and can move relative to the base under the drive of the rotating assembly; the support is rotationally connected with the base and is in linkage connection with the slider-crank mechanism; the support can be driven by the crank slide block mechanism to rotate around the base; the lock rod is fixedly connected to the support; when the rotating assembly rotates, the slider-crank mechanism can be driven to move, and when the slider-crank mechanism moves, the support can be driven to rotate around the base to drive the locking rod to be separated from the original position. The rotary opening cover lock device is reliable in connection, capable of preventing accidental unlocking, convenient to operate and capable of greatly improving convenience and efficiency of maintenance and overhaul.

Description

Rotary cover lock device

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of aviation, in particular to a rotary cover locking device suitable for quickly unlocking and locking an aircraft maintenance hatch cover.

[ background of the invention ]

With the continuous development of aviation technology, the requirements of aviation structural parts are higher and higher. The existing aircraft is still fastened by screws at the maintenance hatch cover, the design is simple, but the aircraft needs to be disassembled one by one during maintenance, time is wasted, the aircraft is easy to lose efficacy for a long time, the attendance rate is affected, for supersonic stealth aircraft, the maintenance hatch cover needs to be tightly attached, the shape of the joint of the fastening piece cannot be suddenly changed, gaps and holes cannot be leaked outside, and the traditional fastening piece connection cannot meet the requirements. Therefore, a locking device which is convenient to operate, simple to maintain, reliable in connection, free of leakage gaps and cavities is urgently needed, and the problem of connection of the cabin door maintenance opening cover is solved.

[ summary of the invention ]

The present invention is directed to solving the above problems and providing a swivel flap lock assembly.

In order to solve the problems, the invention provides a rotary opening cover lock device which is characterized by comprising a base, a rotating assembly, a slider-crank mechanism, a support and a lock rod, wherein the rotating assembly is rotatably arranged on the base; one end of the slider-crank mechanism is connected with the rotating assembly, and the other end of the slider-crank mechanism is connected to the base in a limiting manner and can move relative to the base under the drive of the rotating assembly; the support is rotationally connected with the base and is in linkage connection with the slider-crank mechanism; the support can be driven by the crank slide block mechanism to rotate around the base; the lock rod is fixedly connected to the support; when the rotating assembly rotates, the slider-crank mechanism can be driven to move, and when the slider-crank mechanism moves, the support can be driven to rotate around the base to drive the locking rod to be separated from the original position.

Furthermore, the rotating assembly comprises a rotating sleeve, a mandril, an elastic piece and a rotating linkage piece, the rotating sleeve is rotatably connected in the base, and one end part of the rotating sleeve extends out of the base; the ejector rod is sleeved in the inner rotating sleeve and can move along the axial direction of the inner rotating sleeve; the elastic piece is arranged between the inner rotating sleeve and the ejector rod along the axial direction of the ejector rod; the rotating linkage piece is sleeved on the inner rotating sleeve and can rotate synchronously with the inner rotating sleeve; the rotary linkage piece is connected with the slider-crank mechanism.

Furthermore, a first stroke hole perpendicular to the axial direction of the inner rotating sleeve is arranged on the inner rotating sleeve; a groove is formed in the position, facing the rotary linkage piece, of the base and is communicated with the first stroke hole; a bayonet is arranged at the position of the rotary linkage piece facing the base, and the bayonet can be rotated to be opposite to or staggered with the groove; the ejector rod is provided with a clamping part protruding out of the outer wall of the ejector rod, and the free end part of the clamping part penetrates through the first stroke hole and extends out of the inner rotary sleeve; when in a locking state, the free end of the clamping stop piece is positioned in the groove to limit the circumferential rotation of the inner rotating sleeve; when the push rod is pushed axially, the free end of the clamping stop piece can move into the clamping opening along the axial direction of the push rod through the groove.

Furthermore, the inner rotating sleeve is provided with a screwing hole, a limiting hole and a central shaft hole which are axially arranged and run through two ends of the inner rotating sleeve; the limiting hole is positioned between the wrenching hole and the central shaft hole; the circumferential size of the central shaft hole is smaller than that of the limiting hole, and a first limiting step is formed between the central shaft hole and the limiting hole; the ejector rod comprises a long rod part and a limiting part, the circumferential size of the limiting part is larger than that of the long rod part, and a second limiting step is formed between the limiting part and the long rod part; the long rod part is coaxially arranged in the central shaft hole and extends out of the inner rotary sleeve; the elastic piece is arranged in the screwing hole and the limiting hole, one end of the elastic piece is abutted to the first limiting step, and the other end of the elastic piece is abutted to the second limiting step.

Further, an axial limiting piece is arranged at one end of the long rod part opposite to the limiting part, and the axial limiting piece can abut against the end face of the rotating linkage piece.

Further, the first stroke hole vertically penetrates through the central shaft hole.

Furthermore, the crank-slider mechanism comprises a connecting rod and a slider, and one end of the connecting rod is rotationally connected with the rotary linkage piece; the sliding block is connected to the base in a limiting mode and is connected with the end portion of the connecting rod in a rotating mode.

Furthermore, a sliding groove is formed in the base, and second travel holes are formed in the side walls of two opposite sides of the sliding groove; the sliding block is positioned in the sliding groove, the sliding block is connected with a linkage pin, the linkage pin is transversely positioned in the sliding groove, and two ends of the linkage pin respectively penetrate through the second stroke holes and are connected with the support.

Furthermore, the support comprises arm supporting parts arranged at intervals and a connecting part connected between the arm supporting parts, the arm supporting parts are respectively arranged outside two sides of the sliding groove, free ends of the arm supporting parts are respectively rotatably connected with the base, third travel holes are respectively arranged on the arm supporting parts, and the third travel holes are positioned between the free ends of the arm supporting parts and the connecting part; two ends of the linkage pin are respectively connected in the third travel hole; when the sliding block moves along the sliding groove, the linkage pin can move along the second stroke hole to drive the support to rotate around the base.

Further, the locking bar is vertically connected to the connecting part.

The present invention advantageously contributes to effectively solving the above-mentioned problems. The rotary cover locking device comprises a base, a rotating assembly, a slider-crank mechanism, a support and a locking rod, wherein the rotating assembly is rotatably connected to the base and is connected with the slider-crank mechanism. The crank slider mechanism is connected with the support, and can convert the rotation of the rotating assembly into linear motion, so that the support is driven to rotate around the base, and the lock rod is separated from the original position to be locked or unlocked. According to the rotating cover locking device, in a default state, the clamping stop piece limits the circumferential rotation of the rotating assembly, and the elastic piece is arranged in the rotating cover locking device for pre-tightening, so that accidental unlocking in a locking state can be prevented; when the unlocking is needed, the ejector rod is jacked by using a corresponding operating tool and rotated, so that the unlocking operation can be quickly finished, and the unlocking state can be kept through the clamping fastener; when the lock needs to be locked again, the elastic force of the elastic piece can drive the ejector rod to reset automatically to realize automatic locking only by rotating reversely to rotate to the original position, and the operation is very simple. The operation inlet of the rotary cover locking device is flush with the outer surface of the device in a default state, has no gap or hole, and is suitable for aviation environment. In addition, the rotary covering cap lock device can realize locking and unlocking by pulling and screwing corresponding tools, is very convenient to operate, does not need frequent disassembly and assembly, is used for connecting a covering cap of a cabin door maintenance, and can greatly improve the convenience degree and efficiency of maintenance and overhaul. The rotary flap lock device is in a locked state in a default state, can prevent accidental unlocking, and is very reliable in connection.

[ description of the drawings ]

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

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a cross-sectional view of the invention showing the grip in position within the recess.

Fig. 4 is a cross-sectional view of the present invention showing the grip as it moves from the groove into the bayonet 244.

Fig. 5 is a schematic view of the state when unlocked.

Fig. 6 is a schematic view of the entire structure of the inner rotary sleeve.

FIG. 7 is a cross-sectional view of the inner rotating sleeve.

Fig. 8 is a schematic view of a rotational link.

The attached drawings are as follows: the base 10, the rotation shaft hole 11, the slide groove 12, the second stroke hole 13, the first lug part 14, the screw hole 15, the groove 16, the sixth shaft hole 17, the rotation member 20, the inner rotation sleeve 21, the first rotation part 211, the second rotation part 212, the third rotation part 213, the limiting part 214, the screwing hole 215, the limiting hole 216, the central shaft hole 217, the first limiting step 218, the first stroke hole 219, the top rod 22, the limiting part 221, the long rod part 222, the second limiting step 223, the elastic member 23, the rotation link 24, the through hole 241, the second lug part 242, the first shaft hole 243, the bayonet 244, the axial limiting member 25, the locking member 26, the pin 27, the slider-crank mechanism 30, the connecting rod 31, the second shaft hole 311, the third shaft hole 312, the slider 32, the fourth shaft hole 321, the fifth shaft hole 322, the support 40, the support arm part 41, the seventh shaft hole 411, the third stroke hole 412, the connecting part 42, the locking lever 50, the first rotation shaft 61, the sixth shaft, A second rotating shaft 62, a third rotating shaft 63 and a linkage pin 70.

[ 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 8, the rotary flap lock apparatus of the present invention includes a base 10, a rotating assembly 20, a slider-crank mechanism 30, a support 40, and a lock lever 50. The rotating assembly 20 is rotatably connected to the base 10 and is connected to the slider-crank mechanism 30. The crank slider mechanism 30 is connected to the support 40, and can convert the rotation of the rotating assembly 20 into a linear motion, so as to rotate the support 40 around the base 10, so that the lock lever 50 is released from the original position for locking or unlocking.

As shown in fig. 1 to 4, the base 10 is provided with a rotation shaft hole 11 for mounting the rotation member 20. The rotating shaft hole 11 is a cylindrical through hole. To facilitate the limited installation of the inner rotary sleeve 21 of the rotary assembly 20, the rotary shaft hole 11 is preferably configured as a countersunk hole.

As shown in fig. 2, in order to mount the slider-crank mechanism 30 in a limited manner, a slide groove 12 is provided on the base 10. The slide groove 12 is a linear groove for restricting the displacement of the slider 32 of the crank slider mechanism 30 so that the slider 32 moves smoothly along a straight line. In this embodiment, the extending direction of the sliding groove 12 is perpendicular to the axial direction of the rotating shaft hole 11.

As shown in fig. 2, in order to facilitate the slider-crank mechanism 30 to drive the support 40 to rotate, second travel holes 13 are respectively formed on the two opposite side walls of the sliding chute 12. The second stroke holes 13 are elongated holes spaced apart from each other, and the extending direction thereof is parallel to the extending direction of the slide groove 12. In this embodiment, the length of the second stroke hole 13 is smaller than the length of the slide groove 12.

In addition, as shown in fig. 2, for the convenience of installation, a corresponding first lug part 14 may be further provided on the base 10, and a screw hole or a through hole 15 may be provided on the first lug part 14 to facilitate fixing the base 10 at the installation position by a fastener such as a screw or a rivet.

As shown in fig. 1 to 4, the rotating assembly 20 includes an inner rotating sleeve 21, a top bar 22, an elastic member 23, and a rotating link 24. Wherein, the inner rotary sleeve 21 is sleeved in the rotary shaft hole 11 of the base 10 and can rotate; the top rod 22 is sleeved in the inner rotating sleeve 21 and can move axially relative to the inner rotating sleeve 21. The elastic element 23 is arranged between the inner rotary sleeve 21 and the top rod 22 and is used for automatically resetting the top rod 22. The rotating link 24 is disposed outside the base 10 and sleeved on the inner rotating sleeve 21, and can rotate along with the inner rotating sleeve 21, and is used for driving the slider-crank mechanism 30 to move. Further, the rotating assembly 20 may further include an axial limiting member 25 sleeved on the free end of the top rod 22 for limiting the axial movement of the top rod 22.

As shown in fig. 1 to 4, the length of the inner rotary sleeve 21 is greater than the length of the rotary shaft hole 11, and when the inner rotary sleeve 21 is rotatably connected in the rotary shaft hole 11 of the base 10, one end of the inner rotary sleeve 21 may extend out of the base 10 to connect with the rotary link 24.

In this embodiment, as shown in fig. 6 and 7, the inner rotating sleeve 21 sequentially includes a first rotating portion 211, a second rotating portion 212, a third rotating portion 213, and a limiting portion 214, which are integrally formed. In this embodiment, the diameters of the first rotating portion 211, the second rotating portion 212, and the third rotating portion 213 are sequentially reduced to form a limit step structure. The limiting portion 214 is non-cylindrical and is used for limiting the circumferential rotation of the rotating link 24. The shape of the position-limiting portion 214 can be set according to the requirement, and in this embodiment, it is a square block.

As shown in fig. 2, 6 and 7, the first rotating part 211 and the second rotating part 212 are matched with the rotating shaft hole 11 of the base 10 in shape and size; when the inner rotating sleeve 21 is disposed in the rotating shaft hole 11 of the base 10, the end surfaces of the first rotating portion 211 and the second rotating portion 212 are flush with the end surfaces of the two ends of the base 10, respectively, so that the third rotating portion 213 and the limiting portion 214 extend out of the base 10 to connect the rotating link 24.

As shown in fig. 2, 6 and 7, the inner portion of the inner rotating sleeve 21 is used for sleeving the top rod 22, and is provided with a wrenching hole 215, a limiting hole 216 and a central shaft hole 217. The screwing hole 215, the limiting hole 216 and the central shaft hole 217 are mutually communicated, are respectively arranged along the axial direction of the inner rotating sleeve 21, and are coaxially arranged to be communicated with two ends of the inner rotating sleeve 21.

The wrenching holes 215 are used to insert a wrenching tool to force the inner rotating sleeve 21 to rotate. In general, the wrenching holes 215 may be non-circular holes, for example, triangular holes, square holes, hexagonal holes, pentagonal holes, etc. In this embodiment, the screwing hole 215 is a hexagonal hole, which facilitates screwing with a wrench having a hexagonal head.

As shown in fig. 7, the stopper hole 216 is penetrated through the screwing hole 215, and is located between the screwing hole 215 and the central axis hole 217. The size of the limiting hole 216 should not interfere with the axial movement of the top rod 22. In other words, the plunger 22 should be able to move from the wrenching hole 215 to the restraining hole 216. The shape and size of the limiting hole 216 can be set according to the requirement. In this embodiment, it is a cylindrical hole having a diameter identical to the diameter of the circumscribed circle of the wrenching hole 215. In other embodiments, the limiting hole 216 may be formed in the same shape as the wrenching hole 215.

As shown in fig. 7, the circumferential dimension of the central shaft hole 217 is smaller than the circumferential dimension of the stopper hole 216, so that a first stopper step 218 is formed between the central shaft hole 217 and the stopper hole 216. The first limit step 218 may facilitate the elastic member 23.

The lengths of the screwing hole 215, the limiting hole 216 and the central shaft hole 217, that is, the lengths in the axial direction, may be set as required. In this embodiment, the position-limiting hole 216 is located in the second rotating portion 212, and the central shaft hole 217 penetrates into the second rotating portion 212 from the end surface of the position-limiting portion 214 to penetrate through the position-limiting hole 216.

As shown in fig. 2, 6 and 7, in order to facilitate locking and maintain the locked state, a first stroke hole 219 is provided in the inner rotary sleeve 21. The movable direction of the first stroke hole 219 is parallel to the axial direction of the inner rotary sleeve 21. The first stroke hole 219 is a straight hole, and the locking piece 26 can move linearly in the first stroke hole 219 in a direction parallel to the axial direction of the inner rotary sleeve 21. The first stroke hole 219 is a through hole, and is communicated with the inside of the inner rotary sleeve 21. The first stroke holes 219 are distributed on the second rotating portion 212 and the third rotating portion 213, and are communicated with the central shaft hole 217. As described above, the second rotating portion 212 is located inside the base 10, and the third rotating portion 213 is located outside the base 10, so that when the inner rotating sleeve 21 is disposed inside the rotating shaft hole 11 of the base 10, the first stroke hole 219 is located partly inside the base 10 and partly outside the base 10, so that the retainer 26 can move from inside the base 10 to outside the base 10.

As shown in fig. 1 to 4, the rotation link 24 is sleeved on the free end of the inner rotary sleeve 21, i.e., the third rotation portion 213 and the limiting portion 214, and can rotate along with the inner rotary sleeve 21. The rotating link 24 is provided therein with a through hole 241 having a shape matching with the third rotating portion 213 and the limiting portion 214, and is connected to the inner rotating sleeve 21 in a limiting manner. For the convenience of connecting the slider-crank mechanism 30, the rotating link 24 is provided with a second lug part 242, and a first axial hole 243 axially arranged on the second lug part 242 is used for forming a rotating connection with the slider-crank mechanism 30 through a first rotating shaft 61. As shown in fig. 2 and 8, a bayonet 244 is provided on a side of the rotational link 24 facing the base 10. The bayonet 244 can be used for movement of the catch 26. The bayonet 244 is inserted into the inner through hole 241 of the rotational link 24.

Further, as shown in fig. 2, 3 and 4, in order to prevent the rotary link 24 from moving axially relative to the inner rotary sleeve 21, transverse pin holes may be provided in the rotary link 24 and the inner rotary sleeve 21, and the axial movement between the rotary link 24 and the inner rotary sleeve 21 may be locked by inserting the bolts 27 into the pin holes.

As shown in fig. 2 and 3, the top rod 22 is sleeved inside the inner rotary sleeve 21 and includes a limiting portion 221 and a long rod portion 222 which are integrally formed. The restricting portion 221 is movable in the screwing hole 215 of the inner rotary sleeve 21 and cannot pass through the central axial hole 217 of the inner rotary sleeve 21. The long rod portion 222 extends out of the inner rotary sleeve 21 through the central shaft hole 217 of the inner rotary sleeve 21. A second limit step 223 is formed between the limit portion 221 and the long rod portion 222 for conveniently disposing the elastic member 23. The shape of the limiting portion 221 may be set as required, and in this embodiment, the shape of the limiting portion 221 is identical to the shape of the screwing hole 215, and the limiting portion may close the screwing hole 215 to ensure that the outer surface is smooth and seamless. The long rod portion 222 has a cylindrical shape.

For the purpose of facilitating unlocking and locking, as shown in fig. 2, 3 and 4, a locking piece 26 protruding from the outer wall of the carrier rod 22 is provided. The locking piece 26 is transversely arranged, and the free end thereof protrudes out of the long rod part 222 of the mandril 22 and is vertical to the long rod part 222. In this embodiment, the locking member 26 is a separate component, has a long cylindrical shape, and is transversely inserted into the long rod portion 222 of the stem 22 so as to be perpendicular to the long rod portion 222.

As shown in fig. 2, 3 and 4, in order to limit the axial movement of the top rod 22, an axial limiting member 25 is disposed at the free end of the top rod 22, i.e., the portion of the top rod 22 extending out of the inner rotating sleeve 21. The shape of the axial limiting member 25 can be set according to the requirement, in this embodiment, the axial limiting member 25 is a self-locking nut, and the self-locking nut is sleeved on the free end of the top rod 22.

As shown in fig. 2, 3 and 4, the elastic element 23 is disposed between the top rod 22 and the inner rotary sleeve 21, specifically, one end of the elastic element abuts against the first limit step 218, and the other end of the elastic element abuts against the second limit step 223. In this embodiment, the elastic member 23 is a spring, which is sleeved on the long rod 222 of the top rod 22 and located between the locking member 26 and the limiting portion 221. In a default state, the elastic element 23 is in a natural state or a compressed state; when the push rod 22 is pushed axially to move the push rod 22 from the wrenching hole 215 to the limiting hole 216, the elastic member 23 is compressed and stores force, so that the push rod 22 can be automatically reset.

As shown in fig. 2, 3 and 4, the base 10 is provided with a groove 16 at a portion facing the rotating link 24. The position of the groove 16 corresponds to the position of the first stroke hole 219. Specifically, the groove 16 corresponds to a hole portion of the first stroke hole 219 in the base 10. The recess 16 is sized so as not to interfere with the movement of the retainer 26.

The rotating assembly 20 is assembled as follows:

as shown in fig. 2, 3 and 4, the inner rotary sleeve 21 is sleeved in the rotary shaft hole 11 of the base 10 and can rotate in the base 10; the third rotating part 213 and the limiting part 214 of the inner rotating sleeve 21 extend out of the base 10; the rotating link 24 is sleeved on the third rotating portion 213 and the limiting portion 214 of the inner rotating sleeve 21 and can rotate synchronously with the inner rotating sleeve 21; the mandril 22 is sleeved in the inner rotary sleeve 21 and can freely move along the axial direction; the limiting part 221 of the top rod 22 is movably arranged in the screwing hole 215 of the inner rotating sleeve 21, and the long rod part 222 of the top rod 22 passes through the central shaft hole 217 of the inner rotating sleeve 21 and extends out of the inner rotating sleeve 21; the elastic piece 23 is arranged between the top rod 22 and the inner rotating sleeve 21 and is used for automatically resetting the top rod 22; the axial limiting member 25 is provided at a free end of the carrier rod 22 extending out of the inner rotary sleeve 21, and the axial limiting member 25 abuts against the rotary link 24 in a default state. The locking part 26 protrudes from the plunger 22, and it protrudes through the first stroke hole 219 of the inner rotary sleeve 21 to the outside of the inner rotary sleeve 21. In a default state, i.e. when the push rod 22 is not pushed, the free end of the latch 26 passes through the first stroke hole 219 and is located in the groove 16 of the base 10, and at this time, the presence of the latch 26 can limit the circumferential rotation of the inner rotating sleeve 21, so that the inner rotating sleeve 21 cannot rotate; when the push rod 22 is pushed in the axial direction to compress the elastic member 23, the engaging member 26 moves in the first stroke hole 219, and the free end thereof can move axially from the groove 16 of the base 10 into the bayonet 244 of the rotating link 24, thereby moving out of the base 10 and forming a limit relationship with the rotating link 24; at this time, the inner rotary sleeve 21 is released from the restriction and can be rotated; if the rotating sleeve 21 is rotated, the rotating link 24 rotates along with the rotating sleeve 21, and at this time, the locking piece 26 is driven to rotate, so that the locking piece 26 can rotate to the position of the base 10 except the groove 16, and is abutted on the end surface of the base 10, so that the push rod 22 cannot be reset under the action of the elastic piece 23, and the current state can be maintained. When the rotating sleeve 21 is rotated to make the bayonet 244 opposite to the groove 16, the latch 26 is opposite to the groove 16, and the latch 26 can move axially, at this time, under the elastic force of the elastic member 23, the push rod 22 will move towards the screwing hole 215, so that the latch 26 falls into the groove 16 of the base 10, and the push rod 22 returns to the default state to realize the reset.

As shown in fig. 2, the crank-slider mechanism 30 includes a connecting rod 31 and a slider 32. One end of the connecting rod 31 is connected to the rotating link 24, and the other end is connected to the slider 32. The slide block 32 is located in the slide groove 12 of the base 10 and is connected to the support 40.

As shown in fig. 2, the shape of the link 31 is not limited, which is preferable for facilitating the transmission and avoiding interference with the base 10. A second shaft hole 311 and a third shaft hole 312, which are parallel to each other, are respectively formed at both ends of the link 31.

As shown in fig. 2, the slider 32 is disposed in the slide groove 12 of the base 10, and can be constrained by the slide groove 12 to move linearly. A fourth axis hole 321 and a fifth axis hole 322 are provided on the slider 32. The fourth shaft hole 321 is perpendicular to the fifth shaft hole 322.

As shown in fig. 2, 3 and 4, the rotary link 24 and the connecting rod 31 are rotatably connected through a first rotating shaft 61: the first rotating shaft 61 is rotatably coupled to the first shaft hole 243 of the rotating link 24 and the second shaft hole 311 of the link 31. In this embodiment, the first rotating shaft 61 is in clearance fit with the first shaft hole 243, and the first rotating shaft 61 is in interference fit with the second shaft hole 311.

As shown in fig. 2, 3 and 4, the connecting rod 31 and the sliding block 32 are rotatably connected through a second rotating shaft 62: the second rotating shaft 62 is rotatably coupled to the third shaft hole 312 of the connecting rod 31 and the fourth shaft hole 321 of the slider 32. In this embodiment, the second shaft 62 is in interference fit with the third shaft hole 312, and the second shaft 62 is in clearance fit with the fourth shaft hole 321.

When the rotating link 24 rotates, the rotating link 24 drives the slide block 32 to move through the connecting rod 31. The slider 32 is restrained by the slide groove 12, and therefore, the slider 32 moves smoothly in a straight line.

When the slide block 32 is located in the slide slot 12, the fifth shaft hole 322 of the slide block 32 corresponds to the second stroke hole 13 of the base 10.

As shown in fig. 2, 3 and 4, the sliding block 32 is connected with the support 40 through a linkage pin 70. The linkage pin 70 is in the shape of a long rod. The linkage pin 70 is disposed in the fifth shaft hole 322 of the slider 32, and two ends of the linkage pin 70 respectively penetrate through the second stroke holes 13 and extend out of the base 10 for connecting with the support 40. The range of movement of the linkage pin 70 is constrained by the second travel aperture 13.

As shown in fig. 2, 3 and 4, the support 40 is used for driving the lock rod 50 to move, and includes support arms 41 arranged at intervals and a connecting portion 42 connected between the support arms 41. In this embodiment, the arm support portion 41 and the connecting portion 42 are integrally formed. In other embodiments, the arm portion 41 and the connecting portion 42 may be fixedly connected together.

The distance between the arm portions 41 is such that the arm portions 41 are respectively located outside both sides of the chute 12 of the base 10.

As shown in fig. 2, in order to be rotatably connected to the base 10, the free ends of the arm portions 41 are respectively provided with a seventh shaft hole 411, the base 10 is provided with a sixth shaft hole 17, and the base 10 and the arm portions 41 are rotatably connected together by a third shaft 63: the third rotating shaft 63 is rotatably connected to the sixth shaft hole 17 and the seventh shaft hole 411. The axial direction of the third rotating shaft 63 is parallel to the axial direction of the linkage pin 70. In this embodiment, the sixth shaft hole 17 is located below the slide groove 12.

As shown in fig. 2, in order to make the slide block 32 rotate the support 40, third travel holes 412 are respectively formed on the arm portions 41 at opposite positions. The third stroke hole 412 is spaced apart from the seventh shaft hole 411, and the spaced distance may be set according to the distance between the second stroke hole 13 and the sixth shaft hole 17. The third stroke hole 412 is located between the seventh shaft hole 411 and the connecting portion 42. When the arm support 41 is located on both sides of the sliding chute 12, the third travel hole 412 is opposite to the second travel hole 13, and the end of the linkage pin 70 is connected to the third travel hole 412. Thus, when the slider 32 moves, the support 40 can rotate around the third rotating shaft 63 through the linkage of the linkage pin 70.

The shape of the connecting portion 42 is not limited, and it is preferable to conveniently dispose the locking lever 50.

The locking bar 50 is in a long rod shape, and is used for locking a connecting object; the locking bar 50 is vertically connected to the connecting portion 42 of the support 40. When the support 40 is rotated, the lock lever 50 follows the support 40, and thus may be released from its original position.

Thus, the rotary flap lock assembly of the present invention is formed in the following overall assembly relationship:

as shown in fig. 2, 3 and 4, the inner rotating sleeve 21 is sleeved in the rotating shaft hole 11 of the base 10, and the top rod 22 is arranged in the inner rotating sleeve 21 and can move along the axial direction; the elastic piece 23 is arranged between the inner rotating sleeve 21 and the top rod 22 and is used for resetting the top rod 22; the retainer 26 protrudes from the outer wall of the stem 22, and is movable in the groove 16 of the base 10 and the bayonet 244 of the rotary link 24 through the first stroke hole 219 of the inner rotary sleeve 21. The rotating link 24 is sleeved on the end part of the inner rotating sleeve 21 and is positioned outside the base 10; the rotating linkage piece 24 can rotate along with the inner rotating sleeve 21, and the rotating linkage piece 24 is rotatably connected with the connecting rod 31 through a first rotating shaft 61; the connecting rod 31 is rotatably connected to the slider 32 via a second rotating shaft 62. The slide block 32 is limited and arranged in the chute 12 of the base 10 and forms linkage with the support 40 through a linkage pin 70; the support 40 is rotatably connected to the base 10 via a third shaft 63. The lock lever 50 is fixedly connected to the holder 40. When the inner rotary sleeve 21 rotates, the rotary link 24 rotates along with the inner rotary sleeve, the connecting rod 31 drives the sliding block 32 to move, the sliding block 32 moves to drive the support 40 to rotate around the third rotary shaft 63, and the lock rod 50 is driven to be lifted up or pressed down, so that the unlocking or locking function is realized.

The specific working principle of the rotary flap lock device of the invention is as follows:

as shown in fig. 3, in the locked state, i.e. the default state, the elastic member 23 is in the natural state or in the slightly compressed state, and the locking member 26 is located in the groove 16 of the base 10, which can limit the rotation of the rotating assembly 20 and prevent the accidental unlocking; the limiting part 221 of the mandril 22 is positioned in the wrenching hole 215 of the inner rotating sleeve 21, which can ensure the smoothness and no gap of the outer surface of the device so as to meet the requirement of aviation environment;

when the unlocking is needed, a wrench with a shape matched with the screwing hole 215 is used for pushing the top rod 22, and at the moment, the limiting part 221 of the top rod 22 moves from the screwing hole 215 to the limiting hole 216; the wrench is inserted into the wrench hole 215 to rotate the inner rotating sleeve 21.

When the stem 22 moves axially, the detent 26 on the stem 22 follows the stem 22, so that the detent 26 moves up from the groove 16 of the base 10 to the outside of the base 10 and is located in the notch 244 of the rotating link 24 (as shown in fig. 4); at this time, the wrench is rotated, and the inner rotating sleeve 21 is rotated under the action of the wrench to drive the rotating link 24 to rotate synchronously; when the rotating link 24 rotates, the stop piece 26 is driven to rotate, so that the stop piece 26 is staggered with the groove 16 and is overlapped on the end surface of the base 10, and the ejector rod 22 is prevented from resetting; meanwhile, when the rotating link 24 rotates, the connecting rod 31 is driven to move, and the connecting rod 31 drives the sliding block 32 to move; the slide block 32 moves to drive the support 40 to rotate around the third rotating shaft 63, so as to lift the lock rod 50 to unlock (as shown in fig. 5); since the jack 22 is restrained by the retainer 26, the jack 22 cannot be automatically reset, and thus the current unlocked state can be maintained.

When locking is needed, the inner rotary sleeve 21 is rotated by a wrench, so that the rotary linkage piece 24 rotates synchronously; when the rotating link 24 rotates to make the bayonet 244 opposite to the groove 16, the stop 26 is out of the limit and can fall into the groove 16 through the bayonet 244; in the unlocking process, when the ejector rod 22 is pushed, the elastic piece 23 is in a compressed state, and at the moment, when the clamping part 26 is opposite to the groove 16, under the action of the elastic force of the elastic piece 23, the elastic piece 23 can push the ejector rod 22 to move axially to reset; when the wrench is pulled out, the rod 22 will be reset to the default state, and the locking piece 26 will fall into the groove 16 to limit the rotation of the inner rotating sleeve 21 (as shown in fig. 3); in the process, the reverse rotation of the rotary link 24 drives the support 40 to rotate reversely through the transmission of the crank-slider mechanism 30, so that the lock rod 50 is pressed down to realize the locking function.

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 swivel flap lock apparatus, comprising:

a base (10) for supporting the device,

the rotating assembly (20) is rotatably arranged on the base (10);

one end of the crank sliding block mechanism (30) is connected with the rotating component (20), and the other end of the crank sliding block mechanism is connected to the base (10) in a limiting mode and can move relative to the base (10) under the driving of the rotating component (20);

the support (40) is rotationally connected with the base (10) and is in linkage connection with the slider-crank mechanism (30); the support (40) can be driven by the crank-slider mechanism (30) to rotate around the base (10);

the lock rod (50) is fixedly connected to the support (40);

the rotating assembly (20) can drive the slider-crank mechanism (30) to move when rotating, and the slider-crank mechanism (30) can drive the support (40) to rotate around the base (10) to drive the lock rod (50) to be separated from the original position when moving.

2. The rotary flap lock assembly of claim 1 wherein said swivel assembly (20) comprises:

the inner rotating sleeve (21) is rotatably connected in the base (10), and one end part of the inner rotating sleeve extends out of the base (10);

the ejector rod (22) is sleeved in the inner rotating sleeve (21) and can move along the axial direction of the inner rotating sleeve (21);

the elastic piece (23) is arranged between the inner rotary sleeve (21) and the ejector rod (22) along the axial direction of the ejector rod (22);

the rotating linkage piece (24) is sleeved on the inner rotating sleeve (21) and can synchronously rotate with the inner rotating sleeve (21); the rotary linkage (24) is connected to the slider-crank mechanism (30).

3. The rotary flap lock apparatus as set forth in claim 2,

a first stroke hole (219) which is vertical to the axial direction of the inner rotary sleeve (21) is arranged on the inner rotary sleeve;

a groove (16) is formed in the position, facing the rotating linkage piece (24), of the base (10), and the groove (16) is communicated with the first stroke hole (219);

a bayonet (244) is arranged on the rotary linkage piece (24) facing the base (10), and the bayonet (244) can be rotated to be opposite to or staggered with the groove (16);

a clamping part (26) protruding out of the outer wall of the ejector rod (22) is arranged on the ejector rod, and the free end part of the clamping part (26) penetrates through the first stroke hole (219) and extends out of the inner rotary sleeve (21);

in a locking state, the free end of the clamping stop piece (26) is positioned in the groove (16) to limit the circumferential rotation of the inner rotating sleeve (21); when the ejector rod (22) is pushed in the axial direction, the free end of the clamping part (26) can move into the bayonet (244) along the axial direction of the ejector rod (22) from the groove (16).

4. The rotary flap lock apparatus as set forth in claim 3,

the inner rotating sleeve (21) is provided with a screwing hole (215), a limiting hole (216) and a central shaft hole (217) which are axially arranged and penetrate through two ends of the inner rotating sleeve (21); the limiting hole (216) is positioned between the wrenching hole (215) and the central shaft hole (217); the circumferential dimension of the central shaft hole (217) is smaller than the circumferential dimension of the limiting hole (216) so that a first limiting step (218) is formed between the central shaft hole (217) and the limiting hole (216);

the ejector rod (22) comprises a long rod part (222) and a limiting part (221), the circumferential dimension of the limiting part (221) is larger than that of the long rod part (222), and a second limiting step (223) is formed between the limiting part (221) and the long rod part (222); the long rod part (222) is coaxially arranged in the central shaft hole (217) and extends out of the inner rotary sleeve (21);

the elastic piece (23) is arranged in the screwing hole (215) and/or the limiting hole (216), one end of the elastic piece is abutted to the first limiting step (218), and the other end of the elastic piece is abutted to the second limiting step (223).

5. The rotating flap lock device according to claim 4, characterized in that an axial stopper (25) is provided on the end of the long rod portion (222) opposite to the stopper portion (221), the axial stopper (25) being abuttable against an end surface of the rotating link (24).

6. The rotary flap lock assembly of claim 4 wherein said first travel aperture (219) extends perpendicularly through said central axis aperture (217).

7. The rotary flap lock assembly of claim 1 wherein said slider-crank mechanism (30) comprises:

a connecting rod (31) with one end rotatably connected with the rotating linkage piece (24);

and the sliding block (32) is connected to the base (10) in a limiting manner and is rotatably connected with the end part of the connecting rod (31).

8. The rotary flap lock apparatus as set forth in claim 7,

a sliding chute (12) is arranged on the base (10), and second stroke holes (13) are arranged on the side walls of two opposite sides of the sliding chute (12);

the sliding block (32) is located in the sliding groove (12), a linkage pin (70) is connected to the sliding block (32), the linkage pin (70) is transversely located in the sliding groove (12), and two ends of the linkage pin (70) penetrate through the second stroke holes (13) respectively to be connected with the support (40).

9. The rotary flap lock device according to claim 8, wherein the support (40) includes arm portions (41) provided at intervals and a connecting portion (42) connected between the arm portions (41), the arm portions (41) being respectively provided outside both sides of the sliding groove (12), free ends of the arm portions (41) being respectively rotatably connected to the base (10), third travel holes (412) being provided in the arm portions (41), respectively, the third travel holes (412) being located between the free ends of the arm portions (41) and the connecting portion (42);

two ends of the linkage pin (70) are respectively connected into the third stroke hole (412);

when the sliding block (32) moves along the sliding groove (12), the linkage pin (70) can move along the second stroke hole (13) to drive the support (40) to rotate around the base (10).

10. The rotary flap lock assembly as claimed in claim 9, wherein the locking bar (50) is vertically connected to the connecting portion (42).