Hook putting device
By combining a remote-controlled motor and a manually operated hook-and-drop device, and employing a locking design with multiple limiting structures and leverage effects, the problems of frequent malfunctions, laborious operation, and high costs associated with existing devices are solved, thus achieving stable and reliable hook-and-drop.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-05
- Publication Date
- 2026-03-10
AI Technical Summary
Existing hook-and-drop devices are prone to malfunction when driven by a remote-controlled motor for disengagement. Manual operation is laborious and not quick enough. The hook locking mechanism is not secure and reliable enough, and the complex structure increases costs.
A hook-and-release device was designed, which combines remote-controlled motor and manual operation. It adopts a locking design with multiple limiting structures and leverage effect to ensure the stability of the hook lock state, and takes into account both motor drive and manual release, reducing the number of batteries and simplifying the charging process.
It achieves stable and reliable hook-and-drop deployment under special circumstances, is convenient and quick to operate, reduces costs, and improves the structural robustness and safety.
Smart Images
Figure CN223983378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hook technology, specifically a hook delivery device. Background Technology
[0002] Existing hook-and-drop devices come in a wide variety of types and structures. However, each still has its own shortcomings:
[0003] For example, the hooks of cranes used for loading or unloading cargo on traditional waterborne cargo ships and the lifting hooks of tower cranes all require manual operation to unhook, which is time-consuming, labor-intensive, and increases labor costs.
[0004] For example, most drone hook-and-drop devices only have a remote control motor, such as a servo motor, to drive the hook-and-drop function. However, in special circumstances, such as insufficient power of the servo motor or depletion of battery power, the hook may malfunction or fail to detach.
[0005] In recent years, a few structures have emerged that combine remote-controlled motor-driven and manual hook-and-drop deployment, applied in applications such as drone hook deployment, crane hook deployment for loading or unloading cargo ships, and tower crane lifting hook deployment. However, the following shortcomings still exist: 1. The hook locking mechanism, i.e., the closed state, generally relies solely on the spring force for locking, and its strength, reliability, stability, and safety are still insufficient. 2. The entire hook locking process relies on manual operation, and its convenience and speed need improvement. 3. Manual hook release is generally a button or knob structure, which is relatively laborious to operate. 4. For hook deployment structures with heavy loads, a large number of batteries are generally required, and a custom charger is needed, which increases the size of the casing, increases costs, and makes the charging process relatively cumbersome. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a hook delivery device that can take into account both remote control motor-driven hook release and manual hook release, and whose hook locking state is firm, reliable, stable and safe, and is convenient for manual operation.
[0007] The technical solution of this utility model is to provide a hook delivery device, including a motor, a mounting plate and a hook;
[0008] The hook end is hinged to the mounting plate; a latch is hinged to the mounting plate, one end of the latch has a downward-facing groove for accommodating the latching end of the hook, the other end of the latch is connected to a spring for pulling or pressing the other end of the latch upward, one side of the groove is a first side block for engaging the latching end of the hook, the other side of the groove is a second side block that serves as both a release block and a latch limiting block, and a limiting post is fixed to the upper part of the mounting plate for abutting against the second side block to limit the position in the locked state;
[0009] The hook in the locked state and the horizontal slot outwardly opening at the lower part of the mounting plate constitute a receiving cavity for receiving the hanging ring or the hanging rope of the hanging object;
[0010] The output shaft of the motor extending from the side of the mounting plate is fixed with a push rod for pushing the other end of the lock catch downward, so that the hooking end of the hook is disengaged from the groove to release the hanging object;
[0011] The other end of the lock catch also serves as a lever for manually pushing downward to disengage the hook to release the hanging object or manually lifting upward to lock the hook.
[0012] With the above structure, the hook releasing device has the following advantages:
[0013] The remote control motor driven disengaging and releasing and the manual disengaging and releasing are combined, which can realize remote disengaging and releasing, and when the unmanned aerial vehicle reaches the releasing site or the crane hook of the cargo ship or the lifting hook of the tower crane reaches the unloading site, the manual disengaging can overcome the technical defects of the prior art that the disengaging and releasing is prone to failure or cannot be disengaged and released, effectively ensuring that the hook releasing device is stable, reliable, efficient and safe.
[0014] In particular, when the hook is locked, the spring force of the spring is relied on, and the multiple limiting structures, such as the limiting structure of the first side block of the groove and the hooking end of the hook and the limiting structure of the second side block of the groove and the limiting column, are combined, so that the hook locking state is firm, reliable, stable and safe.
[0015] In addition, the remote control motor, such as the servo motor, and the manual operation have a clever structure design, and during the hook locking process, the remote control motor can be operated first to make the push rod push the other end of the lock catch downward, so that the groove is upwardly away from the hooking end of the hook, then the hooking end of the hook is manually swung around the hinge point thereof to be vertically aligned with the groove, then the remote control motor is operated to make the push rod disengage the other end of the lock catch, and the other end of the lock catch is manually pushed upward to make the groove fit in the hooking end of the hook, and the two limiting structures simultaneously limit the hook to be locked.
[0016] Further, the hook releasing device also comprises a cover plate, which is detachably connected to the mounting plate through multiple fasteners. With the above structure, the cover plate can play a certain dustproof and protective function for the components inside the cover plate, and in particular, the cover plate increases the carrying capacity of the hook device, making the structure more firm and the load bearing performance better.
[0017] Further, the lock catch is hinged by a first hinge pin and a first pin hole, the first pin hole divides the lock catch into a short rod end and a long rod end, and the groove is located at the short rod end; a second side block, which is used as a disengaging hook pushing block and a lock catch limiting block, extends downward from the bottom of the first pin hole, the second side block is in the shape of a triangle with a large upper side and a small lower side, and the length of the downward extension of the second side block is longer than that of the first side block; the side of the second side block close to the hooking end of the hook is a pushing side for pushing the hooking end of the hook when disengaging the hook, and the side of the second side block away from the hooking end of the hook is a limiting side for limiting the limiting post when locking the hook. With the above structure, the lock catch has a lever effect, and the operation is labor-saving and time-saving; the second side block, which is used as a disengaging hook pushing block, makes the disengaging of the hook more flexible, fast and labor-saving; the second side block, which is used as a lock catch limiting block, limits the limiting post fixed on the mounting plate stably and reliably, and further ensures the technical effect of making the state of the hook locked firmly, reliably, stably and safely.
[0018] Further, the output shaft is a DC servo motor output shaft; the mounting plate has an output shaft through hole at the upper part, and the free end of the output shaft passing through the output shaft through hole of the mounting plate is fixed with the pushing rod, and the end of the free end of the pushing rod is an arc surface for pushing the long rod end of the lock catch; the long rod end of the pushing rod or the long rod end of the lock catch pressed manually are pressed after overcoming the spring force of the spring. With the above structure, the pushing rod pressing the long rod end of the lock catch is more flexible, reliable and labor-saving, and the long rod end of the lock catch pressed manually is also more flexible, reliable and labor-saving.
[0019] Further, the side of the first side block inside is a first inclined side with a concave upper side and a convex lower side, and the side of the hooking end of the hook outside in the state of the hook is a second inclined side which is in close contact with the first inclined side of the first side block to be buckled. With the above structure, the buckling of the first side block and the hooking end of the hook is more stable and reliable.
[0020] Further, the other end of the lock catch is also used as a pulling rod for manually pressing the other end to make the hooking end of the hook disengage from the groove to put the hanging object; the other end of the lock catch is also used as a pulling rod for manually lifting the other end to make the groove of the one end of the lock catch fit in the hooking end of the hook to lock the hook. With the above specific structure, the manual operation of the hook disengaging and locking is convenient, fast and labor-saving.
[0021] Further, the hinge point of the hooking end of the hook is located at the connection between the vertical rod part and the hooking part of the hook, the hooking end of the hook is hinged by a second hinge pin and a second pin hole at the lower part of the mounting plate, and the lower part of the mounting plate is fixed with a limiting block for limiting the hooking part of the hook in the state of the hook. With the above structure, one limiting structure is added to the lower end of the hook, i.e. there are three limiting structures for locking the hook, so that the state of the hook locked is more firm, more reliable, more stable and more safe.
[0022] Further, the hooking end of the hook is the lower end when the hook is in the locked state, and the hooking end of the hook is the upper end when the hook is in the unlocked state. The above structure makes the hooking operation more convenient and faster, and the locked state is more firm, reliable, stable, and safe. The unlocking and throwing are more flexible, faster, and labor-saving.
[0023] Further, the transverse slot is a transverse U-shaped slot, and the lower edge of the transverse U-shaped slot is a third inclined edge with an inner high and an outer low. The lower part of the vertical rod part of the hook in the locked state forms a containing cavity for the hanging ring or the hanging rope of the hanging object with the transverse U-shaped slot. The above structure makes the locked state of the hook more firm, reliable, stable, and safe, and the unlocking and throwing more flexible, faster, and labor-saving.
[0024] Further, the hook throwing device also includes a machine shell and a direct current power supply arranged in the machine shell. The direct current power supply adopts a single battery, and a direct current power supply voltage boosting module is connected in series between the single battery and the direct current servo motor. The above structure can meet the needs of large load unlocking with the voltage of multiple batteries, increase the driving force, reduce the volume and cost, and make the charging and installation simple and convenient. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 is the structure diagram of the hook throwing device embodiment of the utility model for omitting the cover plate and retaining the screw, hinge pin, limiting column and tension spring hanging column Figure 1 .
[0026] Figure 2 is the structure diagram of the hook throwing device embodiment of the utility model for omitting the cover plate and exploding the first hinge pin and the second hinge pin, retaining the screw, limiting column and tension spring hanging column
[0027] Figure 3 is the structure diagram of the hook throwing device embodiment of the utility model for omitting the cover plate and retaining the screw, hinge pin, limiting column and tension spring hanging column Figure 2 .
[0028] Figure 4 is the structure diagram of the hook throwing device embodiment of the utility model including the cover plate.
[0029] Figure 5 is the circuit connection structure diagram of the power supply control part of the hook throwing device of the utility model including the driven target, i.e. the rotating shaft and the lever
[0030] IN THE DRAWINGS:
[0031] 11, machine shell, 12, antenna support, 13, antenna, 14, power display lamp, 15, power switch
[0032] 2, mounting plate, 21, lower part, 22, upper part, 23, transverse U-shaped groove, 231, third bevel, 24, output shaft via hole;
[0033] 3, hook, 31, hooking end, 32, buckling end, 321, second bevel, 33, vertical rod part, 34, hooking part, 341, bottom surface, 35, second pin hole, 36, arc transition surface;
[0034] 4, lock, 41, groove, 42, first side block, 421, first bevel, 43, second side block, 431, actuating edge, 432, limiting edge, 44, long rod end, 45, short rod end, 46, pull spring hanging hole, 47, first pin hole;
[0035] 51, pull spring, 52, limiting column, 53, limiting block, 531, bevel, 54, screw, 55, accommodating cavity, 56, first hinge pin, 57, second hinge pin, 58, pull spring hanging column;
[0036] 61, output shaft, 62, actuating rod, 621, round handle, 622, rod body, 6221, arc surface;
[0037] 7, cover plate. DETAILED DESCRIPTION
[0038] The specific embodiments of the utility model will be further described below in conjunction with the drawings. It needs to be declared here that the description of these specific embodiments is used to help understanding the utility model, but does not constitute the limitation of the utility model. In addition, the technical features involved in each specific embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.
[0039] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 .
[0040] The utility model hook delivery device embodiment, including motor such as direct current servo motor, mounting plate 2, hook 3 and shell 11. Motor is installed in shell 11. Shell 11 and the one side of mounting plate 2 are fixed such as welding or through screw screwing. Shell 11 bottom end outside can be fixed with antenna support 12, antenna 13 is installed on antenna support 12, and antenna 13 is electrically connected with the control circuit board in shell 11. Control circuit board generally includes fault detection module. Shell 11 can also be provided with power display lamp 14 and the power switch 15 and charging port etc. of the present device. The above is prior art, and does not involve the invention point of the utility model, so, here does not expand.
[0041] The utility model hook delivery device embodiment, the mounting plate 2 can be roughly the waist shape board, the top and bottom of mounting plate 2 can be arc surface. The utility model hook delivery device is installed in the side of the mounting plate 2 far from the shell 11. The utility model hook delivery device can also include cover plate 7, cover plate 7 is detachable through multiple fasteners and mounting plate, such as using multiple screws 54 screw joint, it can be single screw joint in the thread hole of mounting plate, it can also be screw joint or screw joint with another screw. Cover plate 7 can be parallel with mounting plate 2. It is not difficult to understand, the shape and size of cover plate 7 can be same with mounting plate 2, such as the top and bottom of cover plate 7 can be arc surface, cover plate 7 is also provided with the transverse U-shaped groove 23 of same shape, size and function, and the vertical rod part 33 of hook 3 also constitutes the accommodation cavity 55 with the transverse U-shaped groove. Cover plate 7 is also provided with screw through hole, hinge pin through hole, limiting column through hole and tension spring hanging column through hole. Of course, the prerequisite of setting cover plate 7 is not to interfere with the rotation of the output shaft 61 and the lever 62 of the motor described below, also not to interfere with the expansion of the tension spring 51 described below and the up-down swing of the lock catch 4 around its hinge pin, i.e. the first hinge pin 56 described below, also not to interfere with the rotation of the hook 3 around the second hinge pin 57 to unhook and release. That is, cover plate 7 and mounting plate 2 are parallel to each other, leaving enough space for the movement of the moving parts described above. It is not difficult to understand that mounting plate 2 and cover plate 7 are both provided with structures such as Figures 1-4 the hanging hole at the upper end shown in the above description, which can also be a lifting ring or the like.
[0042] The hooking end 31 of the hook 3 is hinged to the mounting plate 2, such as the lower part 21 of the mounting plate 2; a lock catch 4 is also hinged to the mounting plate 2, such as the upper part 22 of the mounting plate 2, one end of the lock catch 4 has a downwardly open groove 41 for accommodating the buckling end 32 of the hook 3, as shown in Figure 1 Figure 2 and Figure 1 Figure 2 the right end of the other end of the lock catch 4, i.e. the long rod end 44, is connected to a spring for pulling or pressing upwardly; one side of the groove 41 is a first side block 42 for buckling the buckling end 32 of the hook 3, and the other side of the groove 41 is a second side block 43 which also serves as an unhooking push block and a lock catch limiting block; the upper part 22 of the mounting plate 2 is fixed with a limiting column 52 for abutting against the second side block 43 to limit in the locked state.
[0043] The side edge of the inner side of the first side block 42 can be a first inclined edge 421 which is concave upward and convex downward, and the side edge of the outer side of the buckling end 32 of the hook 3 in the locked state can be a second inclined edge 321 which is in close contact with the first inclined edge 421 of the first side block 42 for buckling.
[0044] The hook 3 in the locked state and the open outward transverse slot of the lower part 21 of the mounting plate 2 form a transverse U-shaped slot 23 as follows, which constitutes the accommodation cavity 55 of the hanging ring or the hanging rope of the hanging object.
[0045] The locked state is also called the closed state or the buckled state or the locked state, which can also be understood as the self-locking state.
[0046] The output shaft 61 of the electric motor extends to one side of the mounting plate 2, and a push rod 62 for pushing the other end of the lock catch 4, i.e. the long rod end 44 downward, so that the buckle end 32 of the hook 3 is disengaged from the groove 41 to release the hanging object. The push rod 62 can also be called a rotating structure.
[0047] The output shaft 61 can be the output shaft 61 of a DC servo motor. The mounting plate 2 has an output shaft through hole 24 in the upper part 22, and the push rod 62 is fixed to the free end of the output shaft 61 passing through the output shaft through hole 24 of the mounting plate 2. The free end of the push rod 62 is an arc surface 6221 for pushing the long rod end 44 of the lock catch 4. The push rod 62 or the long rod end 44 of the lock catch 4 is pressed downward after overcoming the spring force of the spring.
[0048] The push rod 62 can be a round handle 621 and a rod body 622 extending from the round handle 621. The free end of the push rod 62, i.e. the end of the free end of the rod body 622, is an arc surface 6221. The push rod 62 looks like a longer gourd-shaped rod body 622. The arc surface 6221 is designed to facilitate the smooth pushing of the long rod end 44 of the lock catch 4. The center hole of the round handle 621 is coaxial with the output shaft 61. It is not difficult to understand that the center hole of the round handle 621 can be interference fit with the output shaft 61, and can be limited in the circumferential and axial directions by keys and key grooves or transverse tightening screws.
[0049] The lock catch 4 is hinged by the first hinge pin 56 and the first pin hole 47, and the first pin hole 47 divides the lock catch 4 into the short rod end 45 and the long rod end 44. One end of the lock catch 4 is the short rod end 45, and the other end of the lock catch 4 is the long rod end 44. The groove 41 is located at the short rod end 45. The second side block 43, which serves as a hook release block and a lock catch limiting block, extends downward from the bottom of the first pin hole 47. The second side block 43 is in the shape of a large triangle at the top and a small triangle at the bottom, and the length of the downward extension of the second side block 43 is longer than that of the first side block 42. The side of the second side block 43 close to the buckle end 32 of the hook 3 is the pushing edge 431 for pushing the buckle end 32 of the hook 3 when releasing the hook, and the side of the second side block 43 away from the buckle end 32 of the hook 3 is the limiting edge 432 for limiting with the limiting column 52 when locking the hook.
[0050] The other end of the lock 4, i.e. the long rod end 44, also serves as a manual lever for pressing down to release the hook 3 or lifting up to lock the hook 3.
[0051] The first side block 42 is also called the first side plate, the second side block 43 is also called the second side plate, the releasing lever is also called the releasing plate, and the lock limiting block is also called the lock limiting plate.
[0052] It is not difficult to understand that the above structure of the lock 4 constitutes a labor-saving lever effect. Therefore, as mentioned above, the lock 4 also serves as a manual lever, and the lock 4 can also be called a lever. The free end of the lever can be directly pressed down or lifted up to release or lock the hook.
[0053] The hinge point of the hooking end 31 of the hook 3, i.e. the second pin hole 35 described below, can be located at the connection between the vertical rod part 33 and the hooking part 34 of the hook 3. The lower part 21 of the mounting plate 2 is fixed with a limiting block 53 for limiting the hooking part 34 of the hook 3 in the locked state. The limiting block 53 also has a buffering effect. The outer end face and the bottom end face of the limiting block 53 can be arc-shaped faces with the same curvature as the arc-shaped face of the bottom end of the mounting plate 2. The limiting block 53 can be fixedly screwed to the mounting plate 2 by a plurality of screws 54.
[0054] The hooking end 31 of the hook 3 is hingedly connected to the lower part 21 of the mounting plate 2 by the second hinge pin 57 and the second pin hole 35. The inner face of the connection between the vertical rod part 33 and the hooking part 34 of the hook 3 can be an arc-shaped transition face 36. Part of the bottom face 341 of the hooking part 34 is a limiting face that abuts against part of the inclined face 531 of the limiting block 53 for limiting.
[0055] The hinge pin is also called a hinge shaft or a pin shaft.
[0056] The hooking end 31 of the hook 3 is the lower end when the hook 3 is in the locked state, and the hooking end 32 of the hook 3 is the upper end when the hook 3 is in the locked state. The hooking end 31 of the hook 3 is the upper end when the hook 3 is in the released state, and the hooking end 32 of the hook 3 is the lower end when the hook 3 is in the released state.
[0057] The transverse slot is a transverse U-shaped slot 23, and the lower edge of the transverse U-shaped slot 23 is a third inclined edge 231 with an inner high and an outer low. The lower part 21 of the vertical rod part 33 of the hook 3 in the locked state and the transverse U-shaped slot 23 form a containing cavity 55 for containing the ring or rope of the hanging object. The transverse U-shaped slot 23 can also be regarded as a notch or a slot or a through hole or a through slot in the thickness direction of the mounting plate 2.
[0058] like Figure 1 and Figure 2 As shown, the spring can be a tension spring 51. The lower end of the tension spring 51 is fixed to the long rod end 44 of the latch 4, and the upper end of the tension spring 51 is fixed to the upper end of the mounting plate 2. Both ends of the tension spring 51 can be provided with hanging rings. The upper hanging ring is hooked onto a tension spring hook post 58, and the lower hanging ring is hooked onto a tension spring hook hole 46 on the long rod end 44 of the latch 4.
[0059] It is easy to understand that when using the tension spring 51, the free end of the lever 62 can move the part of the long rod end 44 of the latch 4, which is close to the first pin hole 47. Of course, the part of the long rod end 44 that is away from the first pin hole 47 can also be moved with less effort. In this case, the tension spring 51 can be further away from this side of the mounting plate 2, leaving a gap for the lever 62 to rotate, while the long rod end 44 of the latch 4 can be thicker and move closer to this side of the mounting plate 2 for the lever 62 to move.
[0060] The spring can also be a compression spring, with its upper end fixed to the long rod end of the latch (lever), and its lower end fixed to the lower part of the mounting plate. The upper end of the compression spring can be fixed to the bottom surface of the free end of the long rod end of the latch, and its lower end can be fixed to the top surface of a rectangular plate fixed perpendicular to the mounting plate. The rectangular plate can be fixed to the mounting plate using one or more screws. The spring can be fixed to the bottom surface of the long rod end and the top surface of the rectangular plate using spot welding or welded sleeves. The lever can move the outer end (free end) of the long rod end of the latch.
[0061] The spring can also be a torsion spring, which is rotatably fitted onto a torsion spring mounting post. One end of the torsion spring is fixed to the mounting plate, and the other end of the torsion spring is fixed to the lever.
[0062] The first hinge pin 56, the second hinge pin 57, the tension spring connecting post 58, and the limiting post 52 mentioned above can all be made of hex socket head cap screws, such as... Figure 2 As shown, the large end serves as an axial limiter, and the smooth cylindrical section is a hinge pin section, a spring-loaded section, or a limiter section. The fixed end has an internally threaded hole, and another hexagon socket screw used in conjunction with it passes through the screw hole of the mounting plate 2 and is tightened into the internally threaded hole of the fixed end. Of course, only one hexagon socket screw can be used, with the external thread of the hexagon socket screw tightened into the internally threaded hole of the mounting plate 2.
[0063] The embodiment of the hook delivery device of this utility model also includes a DC power supply installed in the housing 11. The DC power supply can be a single battery, and a DC power boost module is connected in series between the single battery and the DC servo motor.
[0064] The control circuit board of the electric motor mentioned above includes some modules of the hook delivery device of this utility model, such as the receiving module and the signal conversion module. Of course, the boost module can also be installed on the control circuit board. The single battery and DC servo motor mentioned above can both be installed inside the housing 11.
[0065] See Figure 5 The electrical connections of the power control section, or electric drive section, in the hook-and-drop device of this utility model are as follows: The transmitting module is located inside the remote control. The transmitting module transmits electrical signals to the receiving module. The DC power supply, i.e., a single battery, is electrically connected to both the receiving module and the boost module. The boost module is also electrically connected to the DC servo motor. The receiving module is electrically connected to the signal conversion module, which in turn is electrically connected to the DC servo motor. The rotation of the DC servo motor drives the output shaft 61 to rotate and drives the lever 62 to press down on the locking buckle 4, i.e., the long rod end 44 of the lever, or to release the pressure on the long rod end 44 of the locking buckle 4. All electrical connections described herein can be made using wires. All modules and electrical components described herein are commercially available products. For example, the single battery can be a commercially available lithium battery, and the boost module and DC servo motor can be commercially available, etc.
[0066] The hook-release and hook-locking operation process of this utility model hook-release device is roughly as follows:
[0067] Electric unhooking deployment: The remote control sends an electric unhooking signal, which is received by the receiving module inside the housing 11 and then transmitted to the signal conversion module. See [link to relevant documentation]. Figure 1 and Figure 2 The DC servo motor drives the output shaft 61 to turn right or left, causing the lever 62 to rotate clockwise or counterclockwise. This presses down the lock 4, i.e., the long rod end 44 of the lever, causing the hook 3 at the upper end to disengage from the groove 41 of the short rod end 45 of the lock 4. The hook 3 loses its restraint, and the downward force or gravity of the hanging object causes the hanging ring or hanging rope to rotate the hook 3 around its second hinge pin 57 to the left until the hook 3's locking end 32 faces downward. The hanging ring or hanging rope then slides down with the hanging object and quickly disengages and is released.
[0068] Manual release and deployment: If a release failure occurs, the fault detection module will transmit the release failure signal to the remote controller and control the drone to stop at the preset location, the crane hook to fall at the unloading location, or the tower crane hook to fall at the unloading location. Manually press down on the locking buckle 4, i.e. the long rod end 44 of the lever, so that the fastening end 32 of the upper hook 3 disengages from the groove 41 of the short rod end 45 of the locking buckle 4. The hook 3 loses its restraint. The downward force of the attached object or the manual force of the hook ring or rope causes the hook 3 to rotate to the left around the second hinge pin 57 of the hook 3 until the fastening end 32 of the hook 3 faces down. The hook ring or rope can then release and deploy the attached object.
[0069] Manually attaching and locking the hook: First, remotely operate the motor to press down the long rod end 44 of the latch 4 (i.e., the lever) with the lever 62, so that the groove 41 moves upward away from the fastening end 32 of the hook 3. Then, put the hanging ring or rope of the attachment into the hook 3 through the fastening end 32 of the hook 3. Next, manually swing the fastening end 32 of the hook 3 around the second hinge pin 57 of the hook 3 until it is vertically aligned with the groove 41. Then, operate the motor to disengage the lever 62 from the long rod end 44 of the latch 4. Move the long rod end 44 of the latch 4 upward by hand, and under the spring force of the spring such as the tension spring 51, the groove 41 is engaged with the fastening end 32 of the hook 3. The three limiting structures, namely the limiting structure between the first side block 42 and the fastening end 32 of the hook 3, the limiting structure between the second side block 43 and the limiting post 52, and the limiting structure between the hook part 34 of the hook 3 and the limiting block 53, simultaneously limit the hook 3 and lock the hook.
[0070] Components, structures, or quantities not marked above are not shown in the drawings, and some components are not marked in the drawings. The drawings are for illustrative purposes only. In case of any inconsistency between the drawings and the text description, or between the drawings themselves, the text description shall prevail.
[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A hook releasing device comprising a motor, a mounting plate and a hook; characterized in that: the hooking end of the hook is hinged to the mounting plate; a lock is hinged to the mounting plate, one end of the lock has a groove opening downward and used for accommodating the buckling end of the hook, the other end of the lock is connected with a spring used for pulling or pressing the other end of the lock upward, one side of the groove is a first side block used for buckling the buckling end of the hook, the other side of the groove is a second side block used as a releasing block and a lock limiting block, the upper part of the mounting plate is fixed with a limiting column used for limiting the second side block in the locked state; the hook in the locked state and the horizontal slot opening outward in the lower part of the mounting plate form an accommodating cavity for accommodating the hook ring or the hook rope of the hooked object; an output shaft of the motor extending out of one side of the mounting plate is fixed with a pushing rod used for pushing the other end of the lock downward, so that the buckling end of the hook is released from the groove to release the hooked object; the other end of the lock is used as a pulling rod for manually pressing downward to release the hooked object or manually lifting upward to lock the hook.
2. A hook launching device according to claim 1, characterised in that: It further comprises a cover plate which is detachably connected with the mounting plate through a plurality of fasteners.
3. The hook deployment device of claim 1, wherein: The lock is hinged through a first hinge pin and a first pin hole, the first pin hole divides the lock into a short rod end and a long rod end, and the groove is located in the short rod end; the second side block extending downward from the bottom of the first pin hole is shaped as a triangle with the upper part larger than the lower part, and the length of the second side block extending downward is longer than that of the first side block; the side of the second side block close to the buckling end of the hook is a pushing side used for pushing the buckling end of the hook when releasing, and the side of the second side block away from the buckling end of the hook is a limiting side used for limiting with the limiting column when locking.
4. A hook launching device according to claim 3, characterised in that: The output shaft is the output shaft of a DC servo motor; the upper part of the mounting plate has an output shaft through hole, the free end of the output shaft passing through the output shaft through hole of the mounting plate is fixed with the pushing rod, and the end of the free end of the pushing rod is an arc surface for pushing the long rod end of the lock; the long rod end of the lock is pressed downward by the pushing rod or manually pressed downward after overcoming the spring force of the spring.
5. The hook deployment device of claim 1, wherein: The side of the first side block inside is a first inclined side concave upward and convex downward, and the side of the buckling end of the hook outside in the locked state is a second inclined side close to the first inclined side of the first side block for buckling.
6. The hook deployment device of claim 1, wherein: The other end of the lock is used as a pulling rod for manually pressing downward to release the hooked object or manually lifting upward to lock the hook; the other end of the lock is also used as a pulling rod for manually pressing downward to release the hooked object or manually lifting upward to lock the hook.
7. The hook deployment device of claim 1, wherein: The hinge point of the hooking end of the hook is located at the connection between the vertical rod part and the hooking part of the hook, the hooking end of the hook is hinged to the lower part of the mounting plate through a second hinge pin and a second pin hole, and the lower part of the mounting plate is fixed with a limiting block used for limiting the hooking part of the hook in the locked state.
8. The hook deployment device of claim 1, wherein: The hooking end of the hook is the lower end when the hook is in the locked state, and the buckling end of the hook is the upper end when the hook is in the locked state; the hooking end of the hook is the upper end when the hook is in the released state, and the buckling end of the hook is the lower end when the hook is in the released state.
9. The hook deployment device of claim 1, wherein: The transverse groove is a transverse U-shaped groove, and the lower edge of the transverse U-shaped groove is a third inclined edge with a higher inner part and a lower outer part; the lower part of the vertical rod part of the hook in the locked state forms a containing cavity with the transverse U-shaped groove for containing a hanging ring or a hanging rope.
10. The hook deployment device of claim 1, wherein: The machine shell and the direct current power supply arranged in the machine shell are further included, the direct current power supply adopts a single battery, and a direct current power supply voltage boosting module is connected in series between the single battery and the direct current servo motor.