An adjustable compensation latch device

Abstract

The application discloses an adjustable compensation locking device and relates to the technical field of unmanned aerial vehicle locking devices. The application allows the locking device to produce a certain amplitude deflection with the lifting rope during hoisting, so that part of the swing inertia of the hoisted object can be gradually released through limited swing, and instantaneous transverse impact is avoided from being directly transmitted to the unmanned aerial vehicle through traditional rigid connection. Meanwhile, the first elastic member is used for elastically absorbing and resisting the deflection, the swing range is inhibited from continuously expanding on the basis of reserving a reasonable activity allowance, so that the influence of the hoisted object swing on the flight attitude of the unmanned aerial vehicle is reduced. When the deflection exceeds a certain degree, the sliding pressure increasing member continues to deflect with the arc-shaped arm, the compression bag installed on the sliding pressure increasing member is displaced relative to the inflation box which remains stable, and is gradually extruded by the side of the inflation box, so that the gas in the compression bag is delivered to the holding bag, the holding bag is inflated along with the holding bag, and the holding bag is in contact with the cross beam, so that the frictional restraint between the locking device and the cross beam is increased.

Description

Technical Field

[0001] This invention relates to the field of drone locking device technology, specifically an adjustable and compensated locking device. Background Technology

[0002] A drone locking device is a connecting component used to connect, fix, or suspend a drone body to external accessories. It is typically installed on the drone's base, frame beam, or dedicated mounting bracket and can be used to connect slings, tools, testing equipment, and work loads. Depending on specific usage requirements, locking devices can adopt various structural forms such as snap-fit, clamp-type, pin-type, or quick-release to achieve rapid installation, reliable positioning, and convenient disassembly of accessories.

[0003] Existing drone hoisting latches mostly use rigid clamping when connecting to the base beam. When the hoisted object is affected by gusts of wind, inertia, or changes in the drone's flight attitude and sways laterally, the inertial load generated during the swaying process can be directly transmitted to the drone base through the hoisting rope and latch. There is a lack of effective buffering and release process, which results in a relatively concentrated instantaneous impact at the connection point, and further disturbs the drone's flight attitude and hovering stability, affecting the stability of the hoisting process. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable and compensated locking device to solve the connection problem between the locking device and the drone in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adjustable compensation locking device, comprising a lower arc-shaped arm and a first gripping mechanism, an upper arc-shaped arm rotatably mounted on the lower arc-shaped arm, a locking mechanism installed inside the lower arc-shaped arm, a D-type connector movably mounted inside the lower arc-shaped arm, the locking mechanism being able to engage with the D-type connector, a second gripping mechanism installed inside the lower arc-shaped arm, a pressing handle rotatably mounted on the upper arc-shaped arm, and a steel lock buckle rotatably mounted on the upper arc-shaped arm; The first grip enhancement mechanism includes a sliding pressurizing component, which is installed inside the upper arc-shaped arm. Grip components are symmetrically connected to both sides of the sliding pressurizing component, and the grip components are installed inside the upper arc-shaped arm. An expansion box is slidably installed on the sliding pressurizing component, and an arc-shaped grip plate is installed on the expansion box. A gasket is installed on the arc-shaped grip plate.

[0006] The second grip enhancement mechanism uses the same design as the first, only differing in its placement. The contact surface between the pad and the drone base beam is made of a non-slip material.

[0007] Before operation, fasten the upper and lower arc-shaped arms onto the crossbeam of the drone base, and engage the steel locks on the corresponding locking teeth. Then, reverse the pressing handle, pulling the steel locks to gradually tighten and stably engage the upper and lower arc-shaped arms onto the crossbeam. After locking, engage the gate-type lock into the fitting groove at the end of the pressing handle to limit its movement and prevent accidental springing during hoisting. During installation, the torsion springs at the rotating connections of the upper and lower arc-shaped arms and the pressing handle are in an energy-storing state. After releasing the gate-type lock and the steel lock, the pressing handle and the upper arc-shaped arm will automatically spring open under the action of the corresponding torsion springs, allowing for quick disassembly of the locking device.

[0008] Furthermore, the sliding pressurizing component includes a sliding plate, which is installed inside the upper arc-shaped arm and is slidably connected to the arc-shaped grip plate. Several connecting blocks are installed inside the sliding plate, and arc-shaped rods are installed between the connecting blocks. The arc-shaped rods are slidably connected to the expansion box. The expansion box is symmetrically provided with extrusion chambers, and an extrusion plate is provided at the symmetrical center of the arc-shaped rod. The extrusion plate is slidably connected to the extrusion chamber. First elastic elements are installed on both sides of the extrusion plate, and the ends of the two first elastic elements are respectively connected to the two ends of the extrusion chamber. Compression bladders are symmetrically installed inside the sliding plate, and the compression bladders are in communication with the inside of the grip assembly.

[0009] The first elastic element can be a spring.

[0010] After the locking device is installed, connect the lifting rope to the D-joint and connect the tool to be lifted to the other end of the rope. Lifting operations can then be performed using a drone. During the lifting process, if the lifting rope sways due to gusts of wind, drone attitude adjustments, or the inertia of the load, the rope transmits the swaying force to the locking device through the D-joint. This causes the upper and lower arc-shaped arms to deflect, allowing some of the swaying inertia to be gradually released through limited swaying, avoiding the traditional rigid connection and reducing the direct transmission of instantaneous swaying impact from the base to the drone. Because the arc-shaped grip plate is pressed tightly against the crossbeam through the gasket, the arc-shaped grip plate and expansion box remain stable relative to the crossbeam during swaying. When the D-joint causes the upper and lower arc-shaped arms to sway, the sliding pressure booster and gripping assembly deflect synchronously with the arc-shaped arms, causing relative movement between the sliding pressure booster and the arc-shaped grip plate, and further displacing the arc-shaped rod and extrusion plate relative to the expansion box.

[0011] When the extrusion plate shifts to one side, the first elastic element on that side is compressed, simultaneously pulling the first elastic element on the other side. The two first elastic elements together exert an elastic force on the extrusion plate in the opposite direction of the sway, thus hindering the deflection of the arc-shaped rod and consequently the sliding pressure booster. Therefore, when the hoisting rope sways slightly, the first elastic elements can first absorb and buffer the sway energy, preserving the necessary sway margin for hoisting while suppressing the sway of the locking device and the hoisted object. This prevents excessive sway of the hoisted object from disturbing the UAV's flight attitude and improves flight stability during hoisting.

[0012] Furthermore, the gripping assembly includes a fixing plate, which is installed inside the upper arc-shaped arm. Several grip bags are installed on the fixing plate, and air intake boxes are symmetrically installed on the fixing plate. The grip bags are connected to the corresponding air intake boxes, and a cover plate is installed on the air intake box. A connecting pipe is installed on the cover plate and is connected to the corresponding compression bag.

[0013] When the load is subjected to significant external disturbance and the sway amplitude continues to increase, as the sliding pressure booster further deflects relative to the arc-shaped grip, the compression bladder on the sway side gradually approaches the relatively stationary expansion box and is compressed by the side of the expansion box. After being compressed, the gas inside the compression bladder is transported to the corresponding air inlet box through the connecting pipe and enters the grip bladder connected to the air inlet box, causing the grip bladder in the corresponding area to expand towards the crossbeam. In the initial state, the grip bladder maintains a certain gap with the crossbeam, so it will not contact the crossbeam under normal lifting conditions; only when the sway reaches a certain degree will the expanded grip bladder gradually fill the gap and contact the crossbeam, thereby generating frictional resistance between the grip assembly and the crossbeam.

[0014] Since the first and second gripping mechanisms are located on opposite sides of the crossbeam, when the upper and lower arc-shaped arms swing with the suspension rope, the gripping bladders on both sides expand accordingly. Both mechanisms simultaneously contact the crossbeam on that side, forming a gripping and tightening effect. As the swing amplitude further increases, the compression of the bladders increases, leading to an increase in the amount of gas entering the gripping bladders and a corresponding increase in the contact pressure between the gripping bladders and the crossbeam. This results in a gripping effect that gradually strengthens with increasing swing amplitude. In this way, elasticity is primarily used for flexible buffering during normal small-amplitude swings, while the gripping bladders further increase the frictional constraint between the gripping components and the crossbeam when the swing amplitude is large. This creates a phased, gradual swing suppression effect, avoiding excessive continuous clamping force on the crossbeam under normal conditions, while simultaneously adjusting and compensating for the gripping force of the locking device under conditions of greater disturbance.

[0015] As external disturbances weaken and the hoisted object gradually returns to its upright position, the first elastic element releases its stored elastic potential energy and pushes the sliding pressure booster towards its initial position, gradually reducing the compressive force on the compression bladder. The gas inside the gripping bladder then flows back into the compression bladder, causing it to gradually elastically retract and re-establish clearance space with the crossbeam. The locking device then returns from the enhanced gripping state to its normal clamping state.

[0016] Furthermore, the connecting block is provided with a clearance hole, the compression bladder is provided with a connection port, and the connecting tube passes through the clearance hole and connects to the corresponding connection port.

[0017] Both compression bladders and grip bladders can be made of elastic rubber.

[0018] Furthermore, the locking mechanism includes a sliding block, which is slidably installed inside the lower arc-shaped arm. A second elastic element is installed between the sliding block and the lower arc-shaped arm. The D-type connector is provided with a slot, and the sliding block can be engaged with the slot. A lever is installed on the sliding block.

[0019] The second elastic element can be a spring. When installing the D-type connector, simply insert its connecting end into the mounting hole of the lower arc arm. As the connecting end continues to be inserted, its inclined surface presses against the inclined surface on the sliding block, pushing the sliding block back, while the second elastic element is compressed. When the D-type connector moves to the predetermined installation position, the slot on the connecting end aligns with the sliding block, the second elastic element rebounds and pushes the sliding block back to its original position, causing the end of the sliding block to embed into the slot, thus completing the quick locking of the D-type connector. When it is necessary to disassemble or replace D-type connectors of different specifications, simply move the lever to retract the sliding block, causing its end to exit the slot, releasing the restriction on the D-type connector, and then pull the D-type connector out of the mounting hole, achieving quick disassembly and replacement.

[0020] Furthermore, the arc-shaped grip plate is symmetrically provided with guide ribs, and the sliding plate and connecting block are slidably connected to the guide ribs.

[0021] Furthermore, a door-shaped latch is rotatably mounted on the upper arc-shaped arm, and a fitting groove is provided on the pressing handle.

[0022] Furthermore, the lower arc-shaped arm is provided with several locking teeth.

[0023] Compared with the prior art, the beneficial effects of the present invention are: 1. By cooperating with the upper arc arm, lower arc arm, steel lock and pressing handle, the locking device can be quickly clamped onto the crossbeam of the drone base, and the pressing handle is limited by the gate-type lock to improve the reliability after installation; after unlocking, the pressing handle and upper arc arm can be automatically opened by the torsion spring, which facilitates the quick disassembly of the locking device.

[0024] 2. During the hoisting process, the locking device is allowed to deflect to a certain extent with the hoisting rope, so that part of the swing inertia of the hoisted object can be gradually released through limited swing, avoiding the direct transmission of instantaneous lateral impact to the UAV by the traditional rigid connection; at the same time, the first elastic element is used to elastically absorb and impede the swing, and suppress the swing amplitude from continuing to expand while retaining a reasonable margin of movement, thereby reducing the impact of the hoisted object's swing on the UAV's flight attitude.

[0025] 3. When the sway exceeds a certain degree, the sliding booster continues to deflect with the arc arm, causing the compression bladder mounted on the sliding booster to shift relative to the stable expansion box and gradually be squeezed by the side of the expansion box. This delivers the gas in the compression bladder to the gripping bladder, causing the gripping bladder to expand and contact the crossbeam, thereby increasing the frictional constraint between the locking device and the crossbeam. The greater the sway, the greater the expansion degree and contact pressure of the gripping bladder, enabling the locking device to automatically adjust and compensate the gripping force of the crossbeam according to the degree of disturbance.

[0026] 4. During normal or small-amplitude oscillations, the elastic components provide flexible buffering. During larger oscillations, the gripping mechanisms on both sides further tighten the crossbeam, creating a gradual transition from flexible buffering to reinforced constraint to suppress sway. This allows the locking device to adaptively adjust between flexible buffering and reinforced gripping according to different oscillation states. After the disturbance weakens, the components automatically reset, preventing prolonged high clamping force from continuously compressing the crossbeam and facilitating repeated responses to subsequent oscillation conditions. Attached Figure Description

[0027] Figure 1 This is a perspective view of the locking device of the present invention; Figure 2 This is a partial cross-sectional view of the locking device of the present invention; Figure 3 This is a perspective view of the D-type connector and locking mechanism of the present invention; Figure 4 This is a perspective view of the first gripping mechanism of the present invention; Figure 5 This is a perspective view of the gripping component of the present invention; Figure 6 This is a perspective view of the sliding pressure booster and the arc-shaped grip plate of the present invention; Figure 7 This is an exploded view of the first gripping mechanism of the present invention; Figure 8 For the present invention Figure 6 A magnified view of a portion of region A in the middle.

[0028] In the diagram: 1. Lower arc-shaped arm; 2. Upper arc-shaped arm; 3. Press handle; 4. Steel lock; 5. D-type connector; 6. First grip-enhancing mechanism; 7. Locking mechanism; 8. Second grip-enhancing mechanism; 61. Sliding pressure booster; 62. Grip assembly; 63. Arc-shaped grip plate; 64. Guide rib; 65. Gasket; 66. Expansion box; 611. Sliding plate; 612. Arc-shaped rod; 613. Extrusion plate; 614. First elastic element; 615, connecting block; 616, clearance hole; 617, compression bladder; 618, connecting port; 621, fixing plate; 622, gripping bladder; 623, air inlet box; 624, cover plate; 625, connecting pipe; 661, compression chamber; 71, sliding block; 72, second elastic element; 73, lever; 11, locking tooth; 51, slot; 21, door-shaped latch; 31, fitting groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1-2 and Figures 4-8 The first embodiment of the present invention shown includes an adjustable compensation locking device, comprising a lower arc-shaped arm 1 and a first gripping mechanism 6. An upper arc-shaped arm 2 is rotatably mounted on the lower arc-shaped arm 1. A locking mechanism 7 is installed inside the lower arc-shaped arm 1. A D-type connector 5 is movably mounted inside the lower arc-shaped arm 1, and the locking mechanism 7 can engage with the D-type connector 5. A second gripping mechanism 8 is installed inside the lower arc-shaped arm 1. A pressing handle 3 is rotatably mounted on the upper arc-shaped arm 2. A steel lock 4 is rotatably mounted on the upper arc-shaped arm 2. A door-shaped lock 21 is rotatably mounted on the upper arc-shaped arm 2. The pressing handle 3 is provided with a fitting groove 31. The lower arc-shaped arm 1 is provided with a plurality of locking teeth 11.

[0031] The first grip enhancement mechanism 6 includes a sliding pressure booster 61, which is installed inside the upper arc-shaped arm 2. Grip components 62 are symmetrically connected to both sides of the sliding pressure booster 61. The grip components 62 are installed inside the upper arc-shaped arm 2. An expansion box 66 is slidably installed on the sliding pressure booster 61. An arc-shaped grip plate 63 is installed on the expansion box 66. A gasket 65 is installed on the arc-shaped grip plate 63.

[0032] The second grip enhancement mechanism 8 adopts the same design as the first grip enhancement mechanism 6, only differing in its placement. The contact surface between the pad 65 and the drone base crossbeam is made of anti-slip material.

[0033] The sliding pressurizing component 61 includes a sliding plate 611, which is installed inside the upper arc-shaped arm 2. The sliding plate 611 is slidably connected to the arc-shaped grip plate 63. Several connecting blocks 615 are installed inside the sliding plate 611, and an arc-shaped rod 612 is installed between the connecting blocks 615. The arc-shaped rod 612 is slidably connected to the expansion box 66. The expansion box 66 is symmetrically provided with extrusion chambers 661. An extrusion plate 613 is provided at the symmetrical center of the arc-shaped rod 612. The extrusion plate 613 is slidably connected to the extrusion chamber 661. First elastic elements 614 are installed on both sides of the extrusion plate 613. The ends of the two first elastic elements 614 are respectively connected to the two ends of the extrusion chamber 661. Compression bladders 617 are symmetrically installed inside the sliding plate 611. The compression bladders 617 are in communication with the inside of the grip assembly 62.

[0034] The first elastic element 614 can be a spring.

[0035] The grip assembly 62 includes a fixing plate 621, which is installed inside the upper arc-shaped arm 2. A plurality of grip bags 622 are installed on the fixing plate 621. Air intake boxes 623 are symmetrically installed on the fixing plate 621. The grip bags 622 are connected to the corresponding air intake boxes 623. A cover plate 624 is installed on the air intake box 623. A connecting pipe 625 is installed on the cover plate 624. The connecting pipe 625 is connected to the corresponding compression bag 617.

[0036] The connecting block 615 is provided with a clearance hole 616, the compression bladder 617 is provided with a connection port 618, and the connecting tube 625 passes through the clearance hole 616 and is connected to the corresponding connection port 618.

[0037] Both the compression bladder 617 and the grip bladder 622 can be made of elastic rubber.

[0038] The arc-shaped grip plate 63 is symmetrically provided with guide ribs 64, and the sliding plate 611 and the connecting block 615 are slidably connected to the guide ribs 64.

[0039] like Figure 3 The second embodiment of the present invention shown provides a locking mechanism 7 that is different from that in the first embodiment. It includes a sliding block 71, which is slidably installed in the lower arc-shaped arm 1. A second elastic element 72 is installed between the sliding block 71 and the lower arc-shaped arm 1. The D-type connector 5 is provided with a slot 51, and the sliding block 71 can be engaged with the slot 51. A lever 73 is installed on the sliding block 71, which can realize the quick disassembly and replacement of the D-type connector 5.

[0040] The second elastic element 72 can be a spring. When installing the D-type connector 5, simply insert its connecting end into the mounting hole of the lower arc-shaped arm 1. As the connecting end continues to be inserted, its end bevel presses against the bevel on the sliding block 71, pushing the sliding block 71 back, while the second elastic element 72 is compressed. When the D-type connector 5 moves to the predetermined installation position, the slot 51 on the connecting end corresponds to the sliding block 71, the second elastic element 72 rebounds and pushes the sliding block 71 to reset, so that the end of the sliding block 71 is embedded in the slot 51, thereby completing the quick locking of the D-type connector 5. When it is necessary to disassemble or replace the D-type connector 5 of different specifications, simply move the lever 73 to drive the sliding block 71 back, so that its end exits the slot 51, releasing the limit on the D-type connector 5, and the D-type connector 5 can be pulled out of the mounting hole, realizing quick disassembly and replacement.

[0041] The working principle of this invention is as follows: Before operation, the upper arc-shaped arm 2 and the lower arc-shaped arm 1 are fastened onto the crossbeam of the drone base, and the steel lock 4 is fitted onto the corresponding locking teeth 11. Then, the pressing handle 3 is turned in the opposite direction, and the pressing handle 3 pulls the steel lock 4, causing the upper arc-shaped arm 2 and the lower arc-shaped arm 1 to gradually tighten and stably fasten onto the crossbeam. After locking, the gate-shaped lock 21 is fastened into the fitting groove 31 at the end of the pressing handle 3 to limit the pressing handle 3 and prevent it from accidentally springing up during hoisting. During installation, the torsion springs at the rotatable connection of the upper arc-shaped arm 2 and the lower arc-shaped arm 1, as well as the torsion springs at the rotatable connection of the pressing handle 3, are in an energy-storing state. After releasing the gate-shaped lock 21 and releasing the steel lock 4, the pressing handle 3 and the upper arc-shaped arm 2 can automatically spring open under the action of the corresponding torsion springs, so that the locking device can be quickly disassembled.

[0042] After the locking device is installed, connect the lifting rope to the D-type connector 5 and connect the tool to be lifted to the other end of the lifting rope. The lifting operation can then be carried out by drone. During the lifting process, when the lifting rope sways due to gusts of wind, drone attitude adjustment, or the inertia of the object being lifted, the lifting rope transmits the swaying force to the locking device through the D-type connector 5. This causes the upper arc arm 2 and the lower arc arm 1 to deflect, allowing some of the swaying inertia to be gradually released through limited swaying. This avoids the traditional rigid connection and reduces the situation where the instantaneous swaying impact is directly transmitted from the base to the drone. Because the arc-shaped grip plate 63 is pressed and adhered to the crossbeam through the gasket 65, the arc-shaped grip plate 63 and the expansion box 66 remain stable relative to the crossbeam during the swinging process; when the D-type connector 5 drives the upper arc-shaped arm 2 and the lower arc-shaped arm 1 to swing, the sliding pressure booster 61 and the grip assembly 62 deflect synchronously with the arc-shaped arm, thereby generating relative movement between the sliding pressure booster 61 and the arc-shaped grip plate 63, and further causing the arc-shaped rod 612 and the extrusion plate 613 to shift relative to the expansion box 66.

[0043] When the extrusion plate 613 shifts to one side, the first elastic element 614 on that side is compressed, simultaneously pulling the first elastic element 614 on the other side. The two first elastic elements 614 together exert an elastic force on the extrusion plate 613 in the opposite direction of the sway, thus hindering the deflection of the arc-shaped rod 612, and consequently hindering the deflection of the sliding pressure booster 61. Therefore, when the hoisting rope sways slightly, the first elastic element 614 can first elastically absorb and buffer the sway energy, preserving the reasonable sway margin required for hoisting while suppressing the sway of the locking device and the hoisted object. This prevents excessive sway of the hoisted object from disturbing the UAV's flight attitude and improves flight stability during hoisting.

[0044] When the load is subjected to significant external disturbance and the sway amplitude continues to increase, as the sliding pressure booster 61 further deflects relative to the arc-shaped grip 63, the compression bladder 617 located on one side of the sway direction gradually approaches the relatively stationary expansion box 66 and is compressed by the side of the expansion box 66. After being compressed, the gas inside the compression bladder 617 is transported to the corresponding air inlet box 623 through the connecting pipe 625 and enters the grip bladder 622 connected to the air inlet box 623, causing the grip bladder 622 in the corresponding area to expand towards the crossbeam. In the initial state, the grip bladder 622 maintains a certain gap with the crossbeam, so it will not contact the crossbeam under normal lifting conditions; only when the sway reaches a certain degree, the expanded grip bladder 622 gradually fills the gap and contacts the crossbeam, thereby generating frictional resistance between the grip assembly 62 and the crossbeam.

[0045] Since the first gripping mechanism 6 and the second gripping mechanism 8 are located on opposite sides of the crossbeam, when the upper arc-shaped arm 2 and the lower arc-shaped arm 1 swing with the suspension rope, the gripping bladders 622 on both sides of the gripping mechanism can expand accordingly. Both mechanisms simultaneously contact the crossbeam on that side, forming a gripping and tightening effect on the crossbeam. As the swing amplitude further increases, the compression of the compression bladder 617 increases, increasing the amount of gas entering the gripping bladder 622. This increases the contact pressure between the gripping bladder 622 and the crossbeam, thus forming a gripping effect that gradually strengthens with the increase in swing amplitude. In this way, during the normal small-amplitude swing phase, elasticity is mainly used for flexible buffering. When the swing amplitude is large, the gripping bladder 622 further increases the frictional constraint between the gripping assembly 62 and the crossbeam, thereby forming a phased, gradual swing suppression effect. This avoids applying excessive continuous clamping force to the crossbeam under normal conditions, while simultaneously adjusting and compensating for the gripping force of the locking device under conditions of large disturbances.

[0046] As external disturbances weaken and the hoisted object gradually returns to its upright position, the first elastic element 614 releases its stored elastic potential energy and pushes the sliding pressure booster 61 towards its initial position, gradually reducing the compressive force on the compression bladder 617. The gas inside the gripping bladder 622 then flows back to the compression bladder 617, causing the gripping bladder 622 to gradually elastically retract and re-establish clearance space with the crossbeam. The locking device then returns from the enhanced gripping state to the normal clamping state.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable compensation locking device, characterized in that: The locking device includes a lower arc-shaped arm (1) and a first gripping mechanism (6). An upper arc-shaped arm (2) is rotatably mounted on the lower arc-shaped arm (1). A locking mechanism (7) is installed inside the lower arc-shaped arm (1). A D-type connector (5) is movably mounted inside the lower arc-shaped arm (1). The locking mechanism (7) can engage with the D-type connector (5). A second gripping mechanism (8) is installed inside the lower arc-shaped arm (1). A pressing handle (3) is rotatably mounted on the upper arc-shaped arm (2). A steel lock buckle (4) is rotatably mounted on the upper arc-shaped arm (2). The first grip enhancement mechanism (6) includes a sliding pressure booster (61), which is installed in the upper arc arm (2). Grip components (62) are symmetrically connected on both sides of the sliding pressure booster (61). The grip components (62) are installed in the upper arc arm (2). An expansion box (66) is slidably installed on the sliding pressure booster (61). An arc-shaped grip plate (63) is installed on the expansion box (66). A gasket (65) is installed on the arc-shaped grip plate (63).

2. The adjustable compensation locking device according to claim 1, characterized in that: The sliding pressure booster (61) includes a sliding plate (611), which is installed inside the upper arc-shaped arm (2). The sliding plate (611) is slidably connected to the arc-shaped grip plate (63). Several connecting blocks (615) are installed inside the sliding plate (611). Arc-shaped rods (612) are installed between the connecting blocks (615). The arc-shaped rods (612) are slidably connected to the expansion box (66). The expansion box (66) is symmetrically provided with extrusion chambers (661). The arc-shaped rod (612) is provided with a compression plate (613) at the center of symmetry. The compression plate (613) is slidably connected to the compression cavity (661). The compression plate (613) is provided with a first elastic element (614) on both sides. The ends of the two first elastic elements (614) are respectively connected to the two ends of the compression cavity (661). The sliding plate (611) is symmetrically installed with a compression bladder (617). The compression bladder (617) is connected to the inside of the gripping assembly (62).

3. The adjustable compensation locking device according to claim 2, characterized in that: The grip assembly (62) includes a fixing plate (621) which is installed inside the upper arc-shaped arm (2). A plurality of grip pouches (622) are installed on the fixing plate (621). Air inlets (623) are symmetrically installed on the fixing plate (621). The grip pouches (622) are connected to the corresponding air inlets (623). A cover plate (624) is installed on the air inlets (623). A connecting pipe (625) is installed on the cover plate (624). The connecting pipe (625) is connected to the corresponding compression pouch (617).

4. The adjustable compensation locking device according to claim 3, characterized in that: The connecting block (615) is provided with a clearance hole (616), the compression bladder (617) is provided with a connection port (618), and the connecting tube (625) passes through the clearance hole (616) and is connected to the corresponding connection port (618).

5. The adjustable compensation locking device according to claim 4, characterized in that: The locking mechanism (7) includes a sliding block (71), which is slidably installed in the lower arc arm (1). A second elastic element (72) is installed between the sliding block (71) and the lower arc arm (1). The D-type connector (5) is provided with a slot (51), and the sliding block (71) can be engaged with the slot (51). A lever (73) is installed on the sliding block (71).

6. The adjustable compensation locking device according to claim 3, characterized in that: The arc-shaped grip plate (63) is symmetrically provided with guide ribs (64), and the sliding plate (611) and the connecting block (615) are slidably connected to the guide ribs (64).

7. An adjustable compensation locking device according to any one of claims 1-6, characterized in that: A door-shaped latch (21) is rotatably mounted on the upper arc arm (2), and a fitting groove (31) is provided on the pressing handle (3).

8. An adjustable compensation locking device according to any one of claims 1-6, characterized in that: The lower arc-shaped arm (1) is provided with several locking teeth (11).

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