WO2024055507A1

WO2024055507A1 - Two-handed rotary handle mechanism, locking apparatus, and cargo hold door locking system

Info

Publication number: WO2024055507A1
Application number: PCT/CN2023/076092
Authority: WO
Inventors: 谢丹; 郑环; 王春晖; 王进; 张俊
Original assignee: 玉环天润航空机械制造有限公司
Priority date: 2022-09-16
Filing date: 2023-02-15
Publication date: 2024-03-21
Also published as: CN117759101A

Abstract

The present invention provides a two-handed rotary handle mechanism, a locking apparatus, and a cargo hold door locking system, characterized in that the two-handed rotary handle mechanism comprises: a handle seat; a handle unit, comprising a handle shaft and a handle, the handle shaft being rotatably arranged on the handle seat, the handle being connected to the handle shaft and having two holding parts for respectively being held by the two hands of an operator, and the operator driving the rotation of the handle shaft by means of the handle; a driving unit, at least comprising a primary swing arm connected to the handle shaft, the primary swing arm being used for rotating when driven by the handle shaft, thereby driving a plurality of locks to be synchronously unlocked or locked; wherein the handle seat has a handle groove used for accommodating the handle and also a handle shaft mounting portion used for mounting the handle shaft; the handle groove is communicated with the handle shaft mounting portion, and the handle shaft is telescopically arranged on the handle shaft mounting portion; when the handle shaft is in an extended position, the handle is located outside of the handle groove; and when the handle shaft is in a retracted position, the handle is located in the handle groove.

Description

Two-hand handle mechanism, locking device and cargo door locking system

Technical field

The invention relates to the field of aviation machinery manufacturing, and in particular to a two-hand rotating handle mechanism, a locking device and a cargo door locking system.

Background technique

In order to ensure the loading of large cargo, large transport aircraft usually use large-sized cargo doors, and the cargo doors usually use sliding movements on slide rails to achieve opening and closing operations. Therefore, the cargo doors of large transport aircraft are often large in size and heavy in weight. How to ensure the locking safety and smooth opening of the cargo door is the focus of the design of the cargo door locking mechanism of large transport aircraft.

In order to ensure the safety of locking, existing large cargo cabin doors are often equipped with multiple locking point locking structures, and these multiple locking points are usually equipped with multiple independent operating mechanisms to individually control the locking of each locking point. close. Such a locking system composed of multiple locking points and multiple independent operating mechanisms is very cumbersome to operate and prone to lock leakage problems.

Therefore, there is an urgent need to develop a locking system that can control multiple locking points through one operating mechanism, and the improvement of the operating mechanism in such a locking system is also very important.

Contents of the invention

The present invention is made to solve the above problems, and aims to provide a two-hand rotating handle mechanism, a locking device and a cargo door locking system.

The invention provides a two-hand rotating handle mechanism, which is arranged in a locking device for an operator to operate, thereby unlocking or locking multiple locks of the locking device, and has the following features: a handle seat; The unit at least includes a handle shaft and a handle. The handle shaft is rotatably arranged on the handle seat. The handle is connected to the handle shaft and has two gripping parts for the operator's hands to hold respectively. The operator drives the handle through the handle. The shaft rotates; and the driving unit includes at least a main swing arm connected to the handle shaft. The main swing arm is used to rotate driven by the handle shaft, thereby driving multiple locks to unlock or lock simultaneously, wherein the handle base It has a handle groove for accommodating the handle and a handle shaft installation part for installing the handle shaft, the handle groove is connected with the handle shaft installation part, and the handle shaft is telescopically arranged on the hand shaft installation part, When the handle shaft is in the extended position, the handle is located outside the handle groove; when the handle shaft is in the retracted position, the handle is located within the handle groove.

The two-hand rotating handle mechanism provided by the present invention may also have the following feature: the handle unit further includes a pop-up return spring, which is used to make the handle shaft have a tendency to move to the extended position along the extension direction and reset, and the two-hand rotating handle The mechanism also includes a blocking unit and a pressing unit. The blocking unit is provided on the handle base and has: a blocking swing arm, which is rotatably provided on the handle base and has a blocking position for blocking the handle shaft and an unblocking position for allowing the handle shaft to pass. position; and a blocking return spring, which is used to make the blocking swing arm have a tendency to rotate and return to the blocking position, and the pressing unit is used for the operator to press, thereby pushing the blocking swing arm to rotate from the blocking position to the unblocking position.

The two-hand rotating handle mechanism provided by the present invention may also have the following feature: the handle unit further includes a limiting member connected to the handle shaft, and the limiting member has a limiting hook located outside the handle shaft and facing the handle. , the blocking swing arm has a blocking arm part and a matching pressing arm part, the blocking arm part and the matching pressing arm part are connected, and the connection is hinged on the handle seat through a hinge shaft, and the blocking return spring is a torsion spring, which is sleeved On the hinged shaft, one end is in contact with the handle seat, and the other end is in contact with the matching pressing arm portion. The free end of the blocking arm portion extends to form a blocking hook facing away from the handle. The blocking hook cooperates with the limiting hook. Thus, the blocking and limiting of the handle shaft is achieved.

The two-hand rotating handle mechanism provided by the present invention can also have the following features: wherein the limiting hook has a limiting surface and a pushing arc surface, and the blocking hook has a blocking surface and a pushed arc surface. When the handle shaft is in the retracted position When the limit surface and the blocking surface are offset; when the handle shaft moves from the extended position to the retracted position, the limit hook pushes the pushed arc surface of the blocking hook through the pushing arc surface, so that the blocking swing arm moves from the blocking position Turn toward the unblocked position.

The two-hand rotating handle mechanism provided by the present invention may also have the following features: the pressing unit includes a pressing support base, a pressing member and a pressing transmission member, the pressing support base is provided on the handle base, and the pressing transmission member is provided in cooperation with the pressing member. Between the arm portion and the pressing support seat, one end of the arm portion is in contact with the matching pressing support arm portion, and the other end is movably arranged on the pressing support seat. The pressing piece is movably set on the pressing support seat and is connected with the pressing transmission The parts are in contact with each other and are used to press the pressing transmission part, thereby pushing the blocking swing arm to rotate from the blocking position to the unblocking position.

The two-hand rotating handle mechanism provided by the present invention can also have the following feature: wherein the pressing support base is a lock core, and the lock core has a telescopic elastic piece. The elastic piece is used to prevent the movement of the pressing member. After the key unlocks the lock cylinder, the spring piece retracts, allowing the pressing member to move.

The two-hand rotating handle mechanism provided by the present invention may also have the following feature: the handle unit further includes a handle barrel, which is rotatably provided on the handle shaft mounting part. The handle shaft is in the shape of a hollow cylinder and is provided at one end. In the handle barrel, the other end is set outside the handle barrel and connected to the handle. The handle shaft has a sliding stroke hole opened along its length direction and penetrating the barrel wall. The pop-up return spring is placed in the handle shaft, and one end is in contact with the handle barrel. The other end is in contact with the handle shaft. The drive unit also includes a linkage piece, which is connected to the main swing arm and the handle barrel and slides through the sliding stroke hole. The main swing arm and the handle barrel are driven by the handle shaft through the linkage piece. Make a turn.

The two-hand rotating handle mechanism provided by the present invention may also have the following feature: the driving unit further includes a rotation limiting assembly, which is used to control the rotation angle of the handle and the operator's control of the handle in the non-operation state. The position is limited, and the rotation limit assembly includes: a cylinder, one end of which is hinged on the handle seat, and the other end has an opening; the piston rod is movably arranged on the cylinder through the opening, and its end away from the cylinder is hinged on on the main swing arm; and the compression spring, which is arranged in the cylinder body, and its two ends are in contact with the cylinder body and the piston rod respectively.

The present invention also provides a locking device for use in a large transport aircraft cargo door locking system having a cargo door and a cargo door frame. It has the following features: a plurality of locks for locking the cargo door and the cargo door frame. perform locking; a two-hand handle turning mechanism is used for the operator to operate to unlock or lock multiple locks; and a transmission mechanism is connected to the two-hand handle turning mechanism and the plurality of locks, and is used to be driven by the two-hand handle turning mechanism. Multiple locks are allowed to unlock or lock synchronously, wherein the two-hand rotating handle mechanism is the above-mentioned lock two-hand rotating handle mechanism.

The invention also provides a cabin door locking system, which has the following characteristics, including: a cargo door; a cargo door frame; and a locking device, which is provided on the cargo door and the cargo door frame, wherein the locking device is the above-mentioned lock. closing device.

The function and effect of the invention

According to the two-hand rotating handle mechanism, locking device and cargo door locking system of the present invention, the two-hand rotating handle mechanism has a handle base, a handle unit and a driving unit. The handle unit includes a handle shaft and a handle, and the handle has two for operation. The user's hands are held separately by the grip part, which can solve the problem of cargo The multi-locking point design of the hatch will inevitably bring about the problem of increased operating load on the handle, which improves operating comfort.

Furthermore, because the handle seat has a connected handle groove and a handle shaft mounting part, the handle shaft is telescopically arranged on the hand shaft mounting part. When the handle shaft is in the extended position, the handle is located outside the handle groove, making it convenient for the operator to rotate. The handle has been unlocked; when the handle shaft is in the retracted position, the handle is located in the handle groove, preventing mis-locking problems caused by accidentally touching the handle in the locked state. Retracting the handle in the locked state can also make the cargo door more beautiful.

Description of drawings

Figure 1 is a schematic three-dimensional structural diagram of a large transport aircraft cargo door locking system in an embodiment of the present invention;

Figure 2 is a schematic second three-dimensional structural diagram of a large transport aircraft cargo door locking system in an embodiment of the present invention;

Figure 3 is a schematic three-dimensional structural diagram of the locking device in the embodiment of the present invention;

Figure 4 is an enlarged view of part A in Figure 3;

Figure 5 is a front view of the large transport aircraft cargo door locking system in the embodiment of the present invention;

Figure 6 is a schematic three-dimensional structural diagram of a two-hand rotating handle mechanism in an embodiment of the present invention;

Figure 7 is a schematic two-dimensional structural diagram of the two-hand rotating handle mechanism in the embodiment of the present invention;

Figure 8 is a side view of the two-hand rotating handle mechanism in the embodiment of the present invention;

Figure 9 is a cross-sectional view along line E-E in Figure 8;

Figure 10 is a schematic three-dimensional structural diagram of the mechanism for rotating the handle with both hands when the handle shaft is in the extended position in the embodiment of the present invention;

Figure 11 is a schematic structural view of the two-hand rotating handle mechanism in Figure 7 with the base body and handle shaft mounting portion removed;

Figure 12 is a schematic structural view of the two-hand rotating handle mechanism in Figure 7 with the handle seat and handle barrel removed;

Figure 13 is an enlarged view of part B in Figure 12;

Figure 14 is a schematic structural diagram of the mechanism for rotating the handle with both hands when the handle barrel and cylinder are set to a transparent state in an embodiment of the present invention;

Figure 15 is a front view of the locking device in the embodiment of the present invention;

Figure 16 is an enlarged view of part C in Figure 15;

Figure 17 is an enlarged view of part D in Figure 1;

Figure 18 is a schematic structural diagram of the connecting rod assembly in the embodiment of the present invention.
Description of drawing numbers: large transport aircraft cargo door locking system 1000, cargo door 1, cargo door frame 2, left side 3, right side 4, top side 5, bottom side 6, reinforcement 7, lock Closing device 100, lock 10, side lock 11, lock body 111, lock pin mounting piece 1111, limit hole 1113, lock pin 1112, arm travel hole 1114, convex shaft 1115, lock seat 112, lock hole 1121, Roller 1122, first side upper lock 113, first side lower lock 114, second side upper lock 115, second side lower lock 116, bottom lock 12, first bottom lock 121. Second bottom edge lock 122, third bottom edge lock 123, handle mechanism 20, handle base 21, base body 211, handle groove 2111, handle shaft mounting part 21, blocking mounting seat 213, handle unit 22, handle Shaft 221, first end 2211, second end 2212, sliding stroke hole 2213, handle 222, handle barrel 223, open end 2231, pop-up return spring 224, plug 225, limiter 226, limiter hook 2261, Limit surface 2262, push arc surface 2263, drive unit 23, main swing arm 231, first main drive arm part 2311, limit support arm part 2312, second main drive arm part 2313, linkage 232, rotation limiter Position assembly 233, rotation support shaft 2331, cylinder 2332, piston rod 2333, compression spring 2334, blocking unit 24, blocking swing arm 241, blocking arm part 2411, blocking hook 24111, blocking surface 14112, pushed arc surface 24113, Cooperate with the pressing arm part 2412, the blocking return spring 242, the hinge shaft 243, the pressing unit 25, the pressing support base 251, the pressing part 252, the first pressing transmission part 253, the second pressing transmission part 254, the transmission mechanism 30, the first deputy Swing arm 31, first auxiliary drive arm part 311, first auxiliary linkage arm part 312, second auxiliary linkage arm part 313, third auxiliary linkage arm part 314, second auxiliary swing arm 32, second auxiliary linkage arm part 314 Driving arm part 321, fourth auxiliary driving arm part 322, connecting rod assembly 33, hollow hard rod 331, adjusting bolt 332, ball bearing 333, nut 333, washer 335, first transmission unit 34, transmission swing arm 341. The first transmission arm part 3411, the second transmission arm part 3412, the connecting rod assembly 33, and the second transmission unit 35.

Detailed ways

In order to make the technical means, creative features, achieved goals and effects of the present invention easy to understand, the following embodiments are specifically described in conjunction with the accompanying drawings to describe the two-hand rotating handle mechanism, locking device and cargo door locking system of the present invention.

Figure 1 is a schematic diagram of the first three-dimensional structure of the cargo door locking system of a large transport aircraft in an embodiment of the present invention; Figure 2 is a schematic diagram of the second three-dimensional structure of the cargo door locking system of a large transport aircraft in an embodiment of the present invention.

As shown in Figures 1 and 2, this embodiment provides a large transport aircraft cargo door locking system 1000, which is provided on a large transport aircraft having a fuselage. The large transport aircraft cargo door locking system 1000 includes a cargo door 1, a cargo door frame 2, a sliding mechanism (not shown in the figure) and a locking device 100. The figure only shows part of the structure of the cargo door frame 2. The cargo door frame 2 is actually a closed frame structure that is adapted to the cargo door 1.

The cargo door 1 has a roughly rectangular parallelepiped structure and a size of 2300mm (length) × 1700mm (height). The fuselage has a doorway corresponding to the cargo door 1. The cargo door frame 2 is provided at the doorway. The cargo door 1 is used to open or close the doorway. The cargo door 1 is a sliding cargo door 1, which is installed on the fuselage through a sliding mechanism (not shown in the figure). The locking device 100 is used to lock or unlock the cargo door 1. The slide rail mechanism has an upper slide rail and a lower slide rail, and the upper and lower ends of the cargo door 1 are slidingly connected to the upper slide rail and the lower slide rail respectively.

The cargo door 1 has a left side 3 and a right side 4 respectively located on both sides, and a top side 5 and a bottom side 6 located at the top (upper end) and bottom (lower end) respectively. In this embodiment, each orientation is defined by up, down, left, and right from the perspective shown in Figure 1 (ie, the perspective inside the fuselage).

Figure 3 is a schematic three-dimensional structural diagram of the locking device in the embodiment of the present invention.

As shown in FIGS. 1 to 3 , the locking device 100 is used to lock or unlock the cargo door 1 and the cargo door frame 2 on the fuselage, and includes a lock 10 , a handle mechanism 20 and a transmission mechanism 30 .

The locks 10 are provided on the cargo door 1 and the cargo door frame 2 and are provided in plural numbers for locking the cargo door 1 and the cargo door frame 2 . The handle mechanism 20 is provided as one for the operator to operate to unlock or lock all the locks 10 . The transmission mechanism 30 connects the handle mechanism 20 and all the locks 10, and is used to unlock or lock all the locks 10 simultaneously under the driving of the handle mechanism 20.

As shown in FIG. 3 , the plurality of locks 10 include at least two side locks 11 and a plurality of bottom locks 12 . Among them, the two side locks 11 are used to lock the left side 3 and the right side 4 of the cargo door 1 with the cargo door frame 2 respectively, and the installation heights of the two side locks 11 are different. A side lock 11 is provided near the top side 5 , and another side lock 11 is provided near the bottom side 6 ; a plurality of bottom side locks 12 are respectively used to connect different parts of the bottom side 6 of the cargo door 1 to the cargo compartment. Door frame 2 is locked. The structures of the plurality of locks 10 are basically the same. The structure of the lock 10 will be described in detail below, taking a side lock 11 as an example.

FIG. 4 is an enlarged view of part A in FIG. 3 .

As shown in FIG. 4 , the side lock 11 (lock 10 ) includes a lock body 111 and a lock seat 112 .

The lock body 111 is provided on the cargo door 1 and includes a lock pin installation part 1111 and a lock pin 1112. Among them, the lock pin installation part 1111 is fixed on the cargo door 1, and the lock pin 1112 is movably provided on the lock pin installation part 1111. The lock pin mounting member 1111 has two limiting holes 1113 with a certain interval. The two limiting holes 1113 enable the lock pin 1112 to move only in the locking direction (shown by arrow U) or the unlocking direction (the opposite direction of the locking direction). )move.

The lock seat 112 is provided on the cargo door frame 2 and has a lock hole 1121 and a roller 1122. The lock hole 1121 is provided correspondingly to the lock pin 1112, and is used to cooperate with the lock pin 1112 to lock or unlock the side lock 11. Specifically, when the lock pin 1112 is inserted into the lock hole 1121 along the locking direction, the side lock 1111 locks or unlocks the side lock 11. The lock 11 is in a locked state; when the lock pin 1112 leaves the lock hole 1121 in the unlocking direction, the side lock 11 is in an unlocked state. In this embodiment, the keyhole 1121 is provided through the cargo door frame 2 . The roller 1122 is disposed near the lock hole 1121 to reduce friction between the lock pin 1112 and the lock hole 1121 during movement.

Fig. 5 is a front view of the large transport aircraft cargo door locking system in the embodiment of the present invention.

As shown in Figures 3 and 5, in this embodiment, seven locks 10 are provided, including four side locks 11 and three bottom locks 12.

The four side locks 11 are respectively referred to as a first side upper lock 113, a first side lower lock 114, a second side upper lock 115 and a second side lower lock 116. The lock bodies 111 of the first side upper lock 113 and the first side lower lock 114 are both located on the left side 3 and are located at different height positions. The first side upper lock 113 is closer to the top 5 than the first side lower lock 114 . The lock bodies 111 of the second side upper lock 115 and the second side lower lock 116 are both located on the right side 4 and are located at different height positions. The second side upper lock 115 is closer to the top 5 than the second side lower lock 116 . The first side upper lock 113 and the second side upper lock 115 are located at the same level, and the first side lower lock 114 and the second side lower lock 116 are located at the same level.

The lock bodies 111 of the three bottom side locks 12 are all located on the bottom side 6 and are located at three different positions on the same horizontal line of the bottom side 6 . The three bottom edge locks 12 are respectively designated as the first bottom edge lock 121, the second bottom edge lock 122 and the third bottom edge lock 123, wherein the first bottom edge lock 121 is close to the left side 3, The third bottom lock 123 is close to the right side 4 , and the second bottom lock 122 is located between the first bottom lock 121 and the third bottom lock 123 .

In this embodiment, the lower right corner of the cargo door 1 is also set as a notch, and the inner surface of the cargo door 1 A plurality of reinforcing members 7 distributed in a criss-cross direction are also provided, and these reinforcing members 7 constitute the reinforcing beam of the cargo door 2 . Among them, the left side part 3, the right side part 4 and the bottom side part 6 are all provided with reinforcements 7. The four locks 10 on both sides of the cargo door 1 are arranged at a spacing distance of about 530 mm, and are finely adjusted according to the position of the reinforcement 7 on the cargo door 1. In addition, since the lower right corner of the cargo door cargo door 1 is provided with a notch, the lock body 111 of the second side lower lock 116 is arranged at the notch position. The three locks 10 at the bottom of the cargo door 1 are arranged according to the symmetrical positions of the locks 10 on both sides in the middle of a near view, and are fine-tuned according to the position of the reinforcement 7 on the door frame.

Specifically, in this embodiment, as shown in FIG. 5 , the distance between the first side upper lock 113 and the top edge 5 is 650 mm, and the distance between the first side lower lock 114 and the first side upper lock 113 is 650 mm. The distance is 550mm, and the distance between the lower lock 114 of the first side part and the bottom part 6 is 500mm. The distance between the first bottom edge lock 121 and the second bottom edge lock 122 is 1000 mm, and the distance between the second bottom edge lock 122 and the third bottom edge lock 123 is 600 mm. It can be seen from the arrangement of the seven locks 10 that the lock body 111 of the lock 10 is located close to the reinforcing beam of the cargo door 1, so that the load of the lock 10 can be transmitted through the reinforcing beam to avoid local stress loads.

Figure 6 is a schematic three-dimensional structural diagram of the two-hand rotating handle mechanism in the embodiment of the present invention; Figure 7 is a three-dimensional structural schematic diagram of the two-hand rotating handle mechanism in the embodiment of the present invention; Figure 8 is a two-hand rotating handle in the embodiment of the present invention. A side view of the mechanism; Figure 9 is a cross-sectional view along line E-E in Figure 8; Figure 10 is a schematic three-dimensional structural view of the mechanism for rotating the handle with both hands when the handle shaft is in the extended position in the embodiment of the present invention.

As shown in FIGS. 6 to 10 , the handle mechanism 20 is a two-hand rotating handle mechanism, including a handle base 21 , a handle unit 22 , a driving unit 23 , a blocking unit 24 and a pressing unit 25 .

The handle seat 21 is provided on the cargo door 1 for installing the handle unit 22, the driving unit 23, the blocking unit 24 and the pressing unit 25. The handle base 21 has a base body 211 , a handle shaft mounting portion 212 and a blocking mounting seat 213 . The base 211 has a handle groove 2111 opened toward the outside of the cargo door 1 .

The handle unit 22 has a handle shaft 221, a handle 222, a handle barrel 223, a pop-up return spring 224 and a stopper 226.

The handle shaft 221 is telescopically and rotatably mounted on the handle shaft mounting portion 212 . The handle 222 is connected to the handle shaft 221 and has two gripping parts 2221 for the operator's hands to hold respectively. The operator drives the handle shaft 221 to rotate through the handle 222. In this embodiment, the two holding parts 2221 are parallel to each other. The handle groove 2111 is used to accommodate the handle 222. When the handle shaft 221 is in the extended position, the handle 222 is located outside the handle groove (as shown in Figure 10); when the handle shaft 221 is in the retracted position, the handle 222 is located in the handle groove 2111 (as shown in Figure 6), that is, the handle 222 is hidden. At this time, each lock 10 is in a locked state.

Fig. 11 is a schematic structural view of the two-hand rotating handle mechanism in Fig. 7 with the base body and the handle shaft mounting portion removed.

As shown in Figures 9 and 11, the handle shaft mounting part 212 is connected with the handle groove 2111 and has a recess. The handle tube 223 is rotatably provided on the handle shaft mounting part 212, and its open end 2231 is in contact with the handle groove 2111. The concave platforms are in contact with each other. The handle shaft 221 is in the shape of a hollow cylinder and has a first end 2211 and a second end 2212. The first end 2211 is an open end and the second end 2212 is a blind end. The first end 2211 is disposed inside the handle barrel 223 , and the second end 2212 is disposed outside the handle barrel 223 and connected to the handle 222 . In this embodiment, the handle 222 is sleeved on the second end 2212 and is detachably connected to the second end 2212 through fasteners such as bolts.

The pop-up return spring 224 is arranged in the handle shaft 221, and has one end in contact with the handle barrel 223 through a plug 225, and the other end in contact with the second end 2212 of the handle shaft 221. The pop-up return spring 224 is used to make the handle shaft 221 have a tendency to move to the extended position along the extension direction (the direction shown by the arrow V in Figure 9), that is, when the handle shaft 221 is in the retracted position, the pop-up return spring 224 in a compressed state.

The limiting member 226 is provided on the handle shaft 221 and is used to cooperate with the blocking unit 24 to maintain the handle shaft 221 in the retracted position. In this embodiment, a square mounting hole matching the second end 2212 of the handle shaft 221 is opened in the middle of the limiting member 226, and is sleeved on the second end 2212 through the square mounting hole. The limiting member 226 is fixed between the barrel body of the handle shaft 221 and the handle 222 .

Figure 12 is a schematic structural view of the two-hand rotating handle mechanism in Figure 7 with the handle base and handle barrel removed.

As shown in FIGS. 9 , 11 and 12 , the blocking unit 24 is provided on the blocking mounting base 213 and has a blocking swing arm 241 and a blocking return spring 242 .

The blocking swing arm 241 is rotatably provided on the blocking mounting base 213 and has a blocking position (the position shown in FIG. 9 ) where the handle shaft 221 is blocked and an unblocking position where the handle shaft 221 passes. In this embodiment, the blocking swing arm 241 has a blocking arm portion 2411 and a matching pressing arm portion 2412 that are connected and arranged at an angle. The connection between the blocking arm portion 2411 and the matching pressing arm portion 2412 is connected by a hinge shaft. 243 is hinged on the blocking mounting base 213.

The limiting member 226 also has a limiting hook 2261 located outside the handle shaft 221 and toward the handle 222 . The free end of the blocking arm portion 2411 extends to form a blocking hook 24111 facing away from the handle 222. The blocking hook 24111 cooperates with the limiting hook 2261 to achieve blocking and limiting of the handle shaft 221. In this embodiment, the width of the blocking hook 24111 is narrower than the width of the limiting hook 2261, thereby ensuring the stability of the cooperation between the two.

The blocking return spring 242 is used to make the blocking swing arm 241 have a tendency to rotate and return to the blocking position. The blocking return spring is a torsion spring, which is sleeved on the hinge shaft 243. One end is in contact with the blocking mounting base 213, and the other end is in contact with the matching pressing arm portion 2412.

As shown in Figures 9, 11 and 12, the pressing unit 25 is used for the operator to press, thereby pushing the blocking swing arm 241 to rotate from the blocking position in the unblocking direction (clockwise direction in Figure 9) to the unblocking position. . The pressing unit 25 includes a pressing support base 251, a pressing member 252, and a first pressing transmission member 253 and a second pressing transmission member 254.

The pressing support base 251 is provided on the handle base 21 . The first pressing transmission member 253 is disposed between the matching pressing arm portion 2412 and the pressing support base 251. One end of the first pressing transmission member 253 is in contact with the matching pressing arm portion 2412, and the other end is movably disposed on the pressing support base 251. The end of the first pressing transmission member 253 that abuts the cooperating pressing arm portion 2412 is configured in a hemispherical shape to better cooperate with the rotation of the free end of the cooperating pressing arm portion 2412 . The first pressing transmission member 253 also has lateral protrusions 2531 provided along its peripheral wall.

The end of the pressing support base 251 close to the first pressing transmission member 253 has an opening for the movement of the first pressing transmission member 253, and the outer surface of the end forms a step structure, and the second pressing transmission member 254 passes through the square mounting hole. It is sleeved on the step structure and one side thereof is in contact with the lateral protrusion 2531.

The pressing member 252 is movably sleeved on the pressing support base 251 and abuts with the other side of the second pressing transmission member 254 for the operator to press. The pressing direction is shown by the arrow W in Figure 9 (the The direction is the outside-in direction of the cargo door 1), and then press the second pressing transmission member 254, so that the first pressing transmission member 253 pushes the blocking swing arm 241 to rotate from the blocking position to the unblocking position, and then the handle shaft 221 moves to the extended position along the extension direction (the direction shown by arrow V in FIG. 9 ) under the action of the pop-up return spring 224 , thereby completing the pop-up of the handle 222 . After the handle 222 pops up, the operator can release the pressing member 252. At this time, the blocking return spring 242 moves the blocking swing arm 241 to the blocking position. Turn to reset.

In this embodiment, the pressing support base 251 is a lock core, and the lock core has a telescopic elastic piece (not shown in the figure), and the elastic piece is used to prevent the pressing member 252 from moving. After the lock cylinder is unlocked with the key, the elastic piece retracts, thereby allowing the pressing member 252 to move. The structure of the lock cylinder is a prior art and will not be described in detail here.

FIG. 13 is an enlarged view of part B in FIG. 12 .

In addition, as shown in Figures 12 and 13, the limiting hook 2261 has a limiting surface 2262 and a pushing arc surface 2263. The blocking hook 24111 has a blocking surface 24112 and a pushed arc surface 24113. When the handle shaft 221 is in the retracted position, the limiting surface 2262 and the blocking surface 24112 are against each other; when the handle 222 pops up, if you want to retract the handle 222 into the handle groove 2111, you only need to press the handle 222, then the handle shaft 221 It will move from the extended position to the retracted position. During this movement, the limiting hook 2261 pushes the pushed arc surface 24113 of the blocking hook 24111 by pushing the arc surface 2263, so that the blocking swing arm 241 moves from the blocking position to the unblocked position. The position is rotated, so that the handle shaft 221 can continue to move until the retracted position. At this time, the blocking swing arm 241 rotates and resets to the blocking position under the action of the blocking return spring 242, so that the limiting surface 2262 and the blocking surface 24112 offset, so that the handle shaft 221 Stay in this retracted position.

As shown in FIGS. 9 , 11 and 12 , the drive unit 23 is provided on the handle seat 21 and located inside the cargo door 1 , and includes a main swing arm 231 , a linkage 232 and a rotation limiting assembly 233 .

The main swing arm 231 is connected to the handle shaft 221 and is used to rotate driven by the handle shaft 221 to drive all the locks 10 to unlock or lock simultaneously. The handle shaft 221 also has a sliding stroke hole 2213 opened along its length direction and penetrating its barrel wall. The linkage member 232 is connected to the main swing arm 231 and the handle barrel 223 in turn and slides through the sliding stroke hole 2213. The main swing arm 231 and The handle barrel 223 is driven by the handle shaft 221 to rotate through the linkage 232 . When the handle shaft 221 is in the retracted position, the linkage member 232 is in contact with the end of the sliding stroke hole 2213 close to the second end 2212; when the handle shaft 221 is in the extended position, the linkage member 232 is close to the sliding stroke hole 2213. One end of the first end 2211 is in contact with each other. Therefore, the sliding stroke hole 2213 can ensure the smooth ejection of the handle shaft 221 on the one hand, and can also limit the movement of the handle shaft 221 on the other hand.

As shown in FIG. 7 , the main swing arm 231 includes a first main driving arm part 2311 , a limiting arm part 2312 and a second main driving arm part 2313 which are connected in sequence and arranged at an angle. The angle between the first main driving arm portion 2311 and the second main driving arm portion 2313 is 180°, and is used to connect with the transmission mechanism 30 to drive all locks 10 to unlock or lock synchronously.

Figure 14 is a schematic structural diagram of the mechanism for rotating the handle with both hands when the handle barrel and cylinder are set to a transparent state in the embodiment of the present invention.

As shown in FIG. 14 , the rotation limiting component 233 is used to limit the rotation angle of the handle 222 and the position of the handle 222 in the non-operation state by the operator. The rotation limiting assembly 233 includes a rotation support shaft 2331, a cylinder 2332, a piston rod 2333 and a compression spring 2334.

The rotation support shaft 2331 is fixed on the base 211 and is parallel to the handle shaft 221. One end of the cylinder 2332 is hinged to the rotation support shaft 2331 through a ball bearing, and the other end has an opening. The cylinder 2332 is parallel to the plane of the base 211. The piston rod 2333 is movably disposed on the cylinder 2332 through the opening, and its end away from the cylinder 2332 is hinged on the free end of the limiting arm portion 2312. The piston of the piston rod 2333 is disposed inside the cylinder 2332 and the outer diameter of the piston is larger than the diameter of the opening of the cylinder 2332. The compression spring 2334 is disposed in the cylinder 2332, and its two ends are respectively in contact with the end of the cylinder 2332 provided with the ball bearing and the piston of the piston rod 2333.

As shown in Figure 10, after the handle 222 pops out from the handle groove 2111, the rotation limit assembly 233 allows the handle 222 to remain parallel to the state when the handle 222 is located in the handle groove 2111, and the position of the handle 222 at this time is regarded as its rotation. initial position.

Fig. 15 is a front view of the locking device in the embodiment of the present invention; Fig. 16 is an enlarged view of part C in Fig. 15.

As shown in Figures 15 and 16, when the handle 222 is in the initial rotation position, the connection line (dashed line L1) between the axis of the hinge shaft between the piston rod 2333 and the limiting arm portion 2312 and the central axis of the handle shaft 221 , the angle between the line (dashed line L2) connecting the central axis of the handle shaft 221 and the axis of the rotation support shaft 2331 is 25°. At this time, each lock 10 is still in a locked state, and the compression state of the compression spring at this time is regarded as the initial compression state.

Then, the operator can hold the two gripping parts 2221 with both hands and rotate them counterclockwise (viewed from outside the hatch), which will drive the handle shaft 221, the handle barrel 223 and the main swing arm 231 to rotate synchronously, and the operator can move from inside the hatch to From a perspective, as shown in Figure 16, the main swing arm 231 rotates clockwise. During the rotation, the limit arm portion 2312 pushes the piston rod 2333 to compress the compression spring 2334. When the handle 222 rotates counterclockwise (view from outside the hatch) When turning 25°, the limit arm part 2312 and the cylinder 2332 are both located on the dotted line L2. At this time, the compression spring 2334 is compressed to the maximum extent. Then continue to rotate the handle 222 counterclockwise (viewed from outside the hatch), and the compression spring 2334 has The tendency of reset is that when the handle 222 rotates counterclockwise (viewed from outside the hatch) by 50°, the limit support The arm 2312 is located on the dotted line L3, and the compression spring 2334 returns to the initial state of compression. At this time, the operator releases the handle 222, rotates the limiter assembly 233 to keep the handle 222 in the 50° rotated state, and turns the handle 222 at this time. position as its rotational unlocking position. When the handle 222 is rotated to the unlocking position, each lock 10 is in an unlocked state.

In addition, because the above-mentioned compression spring 2334 is provided, when the rotation angle of the handle 222 is less than 25° by turning counterclockwise (viewed from outside the hatch), release the handle 222, and the handle 222 will automatically return to rotation under the elastic force of the compression spring 2334. initial position, which can also avoid the lock being mislocked due to accidental touching of the handle 222 after the handle 222 pops up, thereby improving the safety of the lock; when the rotation angle of the handle 222 is greater than 25 by turning counterclockwise (viewed from outside the hatch) °, release the handle 222, and the handle 222 will automatically return to the rotation unlocking position under the elastic force of the compression spring 2334, making it more labor-saving and convenient to use.

FIG. 17 is an enlarged view of part D in FIG. 1 .

As shown in FIGS. 15 and 17 , the transmission mechanism 30 includes a first auxiliary swing arm 31 , a second auxiliary swing arm 32 , a plurality of link assemblies 33 , a first transmission unit 34 and a plurality of second transmission units 35 .

The first auxiliary swing arm 31 is rotatably provided on the inner surface of the cargo door 1 . The first auxiliary swing arm 31 has a first auxiliary driving arm portion 311 , a first auxiliary linkage arm portion 312 , a second auxiliary linkage arm portion 313 and a third auxiliary linkage arm portion that are connected in sequence and are spaced 90° apart from each other. 314. The connection points of these four arm parts are hinged on the cargo door 1 through hinge shafts. Among them, the free end of the first auxiliary drive arm part 311 is hinged to the second main drive arm part 2313 of the main swing arm 231 through a connecting rod assembly 33; the free end of the first auxiliary linkage arm part 312 is connected through a connecting rod assembly 33. The rod assembly 33 is hingedly connected to the lock pin 1112 of the first side lower lock 121, and the hinge part on the lock pin 1112 is located at its end away from the lock seat 112; the free end of the second auxiliary linkage arm portion 313 is connected to the first side The lock pin 1112 of the lower edge lock 114 is hinged, and the hinged portion of the lock pin 1112 is located at its end away from the lock seat 112; the free end of the third auxiliary linkage arm portion 314 is connected to the first side through the first transmission unit 34 The lock 113 on the edge is hinged.

Figure 18 is a schematic structural diagram of the connecting rod assembly in the embodiment of the present invention.

As shown in Figure 18, the connecting rod assembly 33 includes a hollow hard rod 331, an adjusting bolt 332 screwed at both ends of the hollow hard rod 331, and an adjusting bolt 332 connected for hinge connection with other structures (such as various swing arms). The ball bearing 333, the nut 334 and the washer 335 for preventing looseness are also provided between the adjusting bolt 332 and the hollow hard rod 331. The length of the entire connecting rod assembly 33 can be appropriately adjusted as needed by adjusting the bolt 332. The structures of the multiple connecting rod assemblies 33 are basically the same, and the only difference lies in the length of the hollow hard rod 331 Can be set to different sizes as needed.

As shown in FIG. 17 , the first transmission unit 34 includes a transmission swing arm 341 and a connecting rod assembly 33 .

The transmission swing arm 341 is rotatably provided on the inner surface of the cargo door 1 . The transmission swing arm 34 has a first transmission arm portion 3411 and a second transmission arm portion 3412 that are connected and have a predetermined angle. The connection between the two is hinged to the cargo door 1 through a hinge axis. In this embodiment, the predetermined included angle is 100°, and the included angle is set toward the corresponding lock 10 . The first transmission arm part 3411 is hingedly connected to the corresponding lock pin (here, the lock pin of the lock 113 on the first side part), and the second transmission arm part 3412 is hinged to the corresponding link assembly 33 (the first transmission unit 34 One end of the connecting rod assembly 33) is hinged, and the other end of the corresponding connecting rod assembly 33 is hinged with the free end of the third auxiliary linkage arm portion 314.

As shown in FIG. 13 , the second auxiliary swing arm 32 has a second auxiliary driving arm portion 321 and a fourth auxiliary driving arm portion 322 that are connected and have an angle of 180° with each other. The free end of the second auxiliary drive arm portion 321 is hingedly connected to the first main drive arm portion 2311 through a link assembly 33; the free end of the fourth auxiliary drive arm portion 322 is connected to the second side through a link assembly 33. The lock pin 1112 of the lock 115 on the edge is hinged, and the hinge part on the lock pin 1112 is located at its end away from the lock seat 112 .

The lock pins of two adjacent and connected locks 10 are connected through a second transmission unit 35 . In this embodiment, the lock pins of the second upper side lock 115 and the second lower side lock 116 are connected through a second transmission unit 35; the first bottom lock 121 and the second bottom lock 122 The lock pins of the second bottom edge lock 122 and the third bottom edge lock 123 are connected through a second transmission unit 35 .

The second transmission unit 35 will be introduced in detail below by taking the second transmission unit 35 disposed between the second side upper lock 115 and the second side lower lock 116 as an example.

The second transmission unit 35 includes two transmission swing arms 341 and a link assembly 33 . The structure of its transmission swing arm 341 is the same as that of the transmission swing arm 341 of the first transmission unit 34 . Among them, the free ends of the first transmission arm portions 3411 of the two transmission swing arms 341 are also respectively hinged with corresponding lock pins, and the free ends of the second transmission arm portions 3412 of the two transmission swing arms 341 are respectively connected with a connecting rod. Assembly 33 is hinged at both ends.

In order to ensure the smooth rotation of the transmission swing arm 341, as shown in Figure 4, the corresponding lock pin 1112 is provided with an arm stroke hole 1114 that allows the free end of the first transmission arm portion 3411 to pass through and rotate, and an arm stroke hole 1114 is provided therein. The convex shaft 1115 on the stroke hole 1114. The free end of the first transmission arm portion 3411 is sleeved on the convex shaft 1115, and has a cam shaft travel hole 34111 that matches the convex shaft 1115.

In addition, as shown in Figure 15, because the locking rod of the second bottom lock 122 is connected to the locking rods of the two locks 10 at the same time, the two corresponding second transmission units 35 will share a transmission swing arm 341. The free end of the second transmission arm portion 3412 of the transmission swing arm 341 will be hinged with the ends of the two link assemblies 33 at the same time. At the hinges of the three, the free end of the second transmission arm portion 3412 is located on the two connecting rods. between the ends of rod assembly 33.

The arrows in FIG. 15 indicate the action directions of the transmission mechanism 30 and the lock 10 during the unlocking process of all the locks 10 by rotating the handle 222. As shown in Figure 15, when unlocking, from the perspective of the inside of the hatch, the main swing arm 231 rotates clockwise, and is further pushed by its first main driving arm portion 2311 and the second main driving arm portion 2313. The second auxiliary swing arm 32 and the first auxiliary swing arm 31 rotate counterclockwise. When the second auxiliary swing arm 32 rotates, the corresponding link assembly 33 will pull the lock pin of the lock 115 on the second side to unlock. direction away from the corresponding lock hole, when the lock pin of the second side upper lock 115 moves in the unlocking direction, the second transmission unit 35 will also drive the lock pin of the second side lower lock 116 to leave the corresponding lock hole in the unlocking direction. . As shown in Figures 15 and 17, when the first auxiliary swing arm 31 rotates, its first auxiliary linkage arm portion 312 will pull the lock pin of the first bottom edge lock 121 away from the corresponding locking pin in the unlocking direction through the link assembly 33. When the lock pin of the first bottom lock 121 moves, the two second transmission units 35 will also drive the lock pins of the second bottom lock 122 and the third bottom lock 123 to leave the corresponding lock hole in the unlocking direction. its second auxiliary linkage arm portion 313 will pull the lock pin of the first side lower lock 114 away from the corresponding lock hole in the unlocking direction; its third auxiliary linkage arm portion 314 will pass through the first transmission unit 34 Pull the lock pin of the lock 113 on the first side part away from the corresponding lock hole in the unlocking direction. Thereby, all the locks 10 can be unlocked simultaneously under the driving of the handle mechanism 20 . By the same token, when all the locks 10 are locked simultaneously under the driving of the handle mechanism 20, the action directions of the transmission mechanism 30 and the locks 10 are opposite to their respective action directions during the unlocking process.

In this embodiment, the strokes of the lock pins of the plurality of locks 10 are also different according to the different installation positions. For example, the strokes of the lock pins of the three bottom locks 12 are 62 mm, and the strokes of the lock pins of the four side locks 11 are 62 mm. The stroke is 72mm (as shown in Figure 15).

In addition, in order to solve the problem of inconsistent strokes of the side locks 11 and the bottom locks 12, a lever swing arm is designed in the transmission mechanism 30, and the stroke of each lock 10 (locking point) is changed through the stroke conversion of the lever. Matching, for example, as shown in Figure 15, set the length of the first auxiliary linkage arm portion 312 connected to the lock pin of the bottom lock 12 to 75mm, and set the length of the first auxiliary linkage arm portion 312 connected to the lock pin of the first side upper lock 113 to 75mm. The length of the first transmission arm portion 3411 of the swing arm 341 is set to 57 mm.

In addition, in order to ensure the smooth progress of each structural action of the transmission mechanism 30 , the reinforcement 7 is also provided with escape holes for avoiding the corresponding structures of the transmission mechanism 30 .

Functions and effects of embodiments

According to the two-hand rotating handle mechanism, the two-hand rotating handle mechanism, the locking device and the cargo door locking system involved in the present invention, the two-hand rotating handle mechanism has a handle base, a handle unit and a driving unit, the handle unit includes a handle shaft and a handle, and the handle It has two holding parts for the operator's hands to hold respectively, which can solve the problem of increased handle operating load caused by the multi-locking point design of the cargo door and improve the operating comfort.

Further, because the handle unit also includes a pop-up return spring, the two-hand rotating handle mechanism also includes a blocking unit and a pressing unit. The blocking unit is provided on the handle base and has a blocking swing arm and a blocking return spring. The blocking swing arm is rotatably provided on the handle. The base has a blocking position where the handle shaft is blocked and an unblocking position where the handle shaft passes. The operator can press the unit to push the blocking swing arm to rotate from the blocking position to the unblocking position. At this time, the return spring pops up. The handle shaft can be moved and reset along the extension direction to the extension position, so that the handle pops out of the handle groove, and the blocking swing arm can be rotated and reset to the blocking position under the action of the blocking return spring. The process of popping up the handle is simple and easy to operate.

Further, because the handle unit also includes a limiting member connected to the handle shaft, the limiting member has a limiting hook, the blocking swing arm has a blocking arm portion, and the free end of the blocking arm portion extends to form a blocking hook, and the blocking arm portion extends to form a blocking hook. The hook cooperates with the limiting hook to realize the blocking and limiting of the handle shaft.

Further, because the pressing unit includes a pressing support base, a pressing piece and a pressing transmission member, the pressing transmission member is provided between the matching pressing arm portion of the blocking swing arm and the pressing support base, and one end thereof is in contact with the matching pressing arm portion, The other end is movably arranged on the pressing support base, and the pressing piece is movably sleeved on the pressing supporting base and abuts with the pressing transmission member, so the operator can press the pressing piece to further press the pressing member. Press the transmission member to push, thereby pushing the blocking swing arm to rotate from the blocking position to the unblocking position, so that the handle shaft can move and reset along the extension direction to the extension position under the action of the pop-up return spring.

Furthermore, because the pressing support seat is a lock core, the lock core has a retractable elastic piece, which is used to prevent the movement of the pressing member. After the lock core is unlocked by the key, the elastic piece retracts, thereby allowing the pressing member to move. This ensures that subsequent unlocking operations can only be carried out with the key, and the cargo door can be opened for better safety.

Further, because the handle unit also includes a handle barrel, the handle barrel is rotatably provided on the handle shaft mounting part, one end of the handle shaft is set inside the handle barrel, and the other end is set outside the handle barrel and connected to the handle, and is in the shape of a hollow cylinder. , has a sliding stroke hole opened along its length direction and penetrating its cylinder wall. The pop-up return spring is arranged in the handle shaft, one end is in contact with the handle barrel, and the other end is in contact with the handle shaft. The drive unit also includes a linkage piece. It is connected to the main swing arm and the handle barrel and slides through the sliding stroke hole. Therefore, the handle shaft can telescope smoothly. When it is in the extended position, the main swing arm and the handle barrel can be driven to rotate by rotating the handle. Unlock operations for each lock.

Furthermore, because the drive unit also includes a rotation limit assembly, which includes a cylinder, a piston rod, and a compression spring, the rotation angle of the handle and the operator's position in the non-operated state (released) can be controlled through the rotation limit assembly. When opening the handle) the position of the handle is limited.

The above embodiments are preferred examples of the present invention and are not intended to limit the scope of the present invention.

Claims

A two-hand rotating handle mechanism is provided in a locking device for an operator to operate, thereby unlocking or locking multiple locks of the locking device, and is characterized in that it includes:

handle seat;

The handle unit at least includes a handle shaft and a handle. The handle shaft is rotatably provided on the handle seat. The handle is connected to the handle shaft and has two grips for the operator's hands to hold respectively. The operator drives the handle shaft to rotate through the handle; and

The driving unit at least includes a main swing arm connected to the handle shaft. The main swing arm is used to rotate driven by the handle shaft, thereby driving the plurality of locks to unlock or lock synchronously,

Wherein, the handle seat has a handle groove for accommodating the handle and a handle shaft mounting part for installing the handle shaft. The handle groove is connected with the handle shaft mounting part, and the handle shaft is telescopic. is provided on the handshaft mounting part,

When the handle shaft is in the extended position, the handle is located outside the handle groove; when the handle shaft is in the retracted position, the handle is located in the handle groove.
The two-hand rotating handle mechanism according to claim 1, characterized in that:

Wherein, the handle unit further includes a pop-up return spring, which is used to make the handle shaft have a tendency to move to the extended position along the extending direction and reset,

The two-hand rotating handle mechanism also includes a blocking unit and a pressing unit,

The blocking unit is provided on the handle base and has:

a blocking swing arm, rotatably disposed on the handle base, having a blocking position for blocking the handle shaft and an unblocking position for allowing the handle shaft to pass; and

A blocking return spring is used to make the blocking swing arm have a tendency to rotate and return to the blocking position,

The pressing unit is used for the operator to press, thereby pushing the blocking swing arm to rotate from the blocking position to the unblocking position.
The two-hand rotating handle mechanism according to claim 2, characterized in that:

Wherein, the handle unit further includes a limiting member connected to the handle shaft, and the limiting member has a limiting hook located outside the handle shaft and facing the handle,

The blocking swing arm has a blocking arm portion and a matching pressing arm portion, and the blocking arm portion and the matching pressing arm portion The pressing arm parts are connected and the connection point is hinged on the handle seat through a hinge axis,

The blocking return spring is a torsion spring, which is sleeved on the hinge shaft, one end is in contact with the handle seat, and the other end is in contact with the cooperative pressing arm portion,

The free end of the blocking arm portion extends to form a blocking hook facing away from the handle. The blocking hook cooperates with the limiting hook to achieve blocking and limiting of the handle shaft.
The two-hand rotating handle mechanism according to claim 3, characterized in that:

Wherein, the limit hook has a limit surface and a pushing arc surface,

The blocking hook has a blocking surface and a pushed arc surface,

When the handle shaft is in the retracted position, the limiting surface and the blocking surface are against each other; when the handle shaft moves from the extended position to the retracted position, the limiting hook passes through The pushing arc surface pushes the pushed arc surface of the blocking hook, causing the blocking swing arm to rotate from the blocking position to the unblocking position.
The two-hand rotating handle mechanism according to claim 3, characterized in that:

Wherein, the pressing unit includes a pressing support base, a pressing member and a pressing transmission member,

The pressing support seat is provided on the handle seat,

The pressing transmission member is disposed between the matching pressing arm portion and the pressing support base, one end of which is in contact with the matching pressing arm portion, and the other end is movably disposed on the pressing support base,

The pressing member is movably sleeved on the pressing support seat and is in contact with the pressing transmission member for pressing the pressing transmission member to push the blocking swing arm from the blocking position. Turn to the unblocked position.
The two-hand rotating handle mechanism according to claim 5, characterized in that:

Wherein, the pressing support seat is a lock core, and the lock core has a retractable elastic piece, and the elastic piece is used to prevent the movement of the pressing member,

After the lock cylinder is unlocked by the key, the elastic sheet retracts, thereby allowing the pressing member to move.
The two-hand rotating handle mechanism according to claim 2, characterized in that:

Wherein, the handle unit further includes a handle barrel, which is rotatably provided on the handle shaft mounting part,

The handle shaft is in the shape of a hollow cylinder, with one end set inside the handle barrel and the other end set outside the handle barrel and connected to the handle. The handle shaft has a sliding hole opened along its length direction and penetrating its barrel wall. travel hole,

The pop-up return spring is arranged in the handle shaft, one end is in contact with the handle tube, and the other end is in contact with the handle shaft,

The drive unit also includes a linkage member connected to the main swing arm and the handle barrel and sliding through the sliding stroke hole, and the main swing arm and the handle barrel pass through the linkage member. It is rotated driven by the handle shaft.
The two-hand rotating handle mechanism according to claim 1, characterized in that:

Wherein, the drive unit also includes a rotation limit component, which is used to limit the rotation angle of the handle and the position of the handle in the non-operation state by the operator,

The rotation limiting component includes:

A cylinder body with one end hinged on the handle base and an opening at the other end;

A piston rod is movably disposed on the cylinder through the opening, and its end away from the cylinder is hinged on the main swing arm; and

A compression spring is arranged in the cylinder body, and its two ends are respectively in contact with the cylinder body and the piston rod.
A locking device used to be provided in a large transport aircraft cargo door locking system having a cargo door and a cargo door frame, which is characterized in that it includes:

A plurality of locks for locking the cargo door and the cargo door frame;

A two-hand rotating handle mechanism is used for the operator to operate to unlock or lock the plurality of locks; and

a transmission mechanism that connects the two-hand rotating handle mechanism and the plurality of locks, and is used to unlock or lock the plurality of locks simultaneously under the driving of the two-hand rotating handle mechanism,

Wherein, the two-hand rotating handle mechanism is the locking two-hand rotating handle mechanism described in any one of claims 1-8.
A cargo door locking system is characterized by including:

cargo door;

Cargo door frames; and

A locking device is provided on the cargo door and the cargo door frame,

Wherein, the locking device is the locking device according to claim 9.