Suspension device and unmanned aerial vehicle transportation system

Abstract

The utility model belongs to the technical field of photovoltaic cleaning robots, and discloses a suspension device and an unmanned aerial vehicle transportation system, the suspension device comprises a switch assembly and a guide assembly, the switch assembly comprises a trigger piece and a switch piece, the switch piece is in communication connection with a winding assembly, one of the trigger piece and the switch piece is arranged on a suspension mechanism, and the other one is arranged on the guide assembly. The other one is arranged on the rack; the guide assembly comprises a flared flaring guide piece which is arranged on the rack and is in a horn shape, the two ends of the flared guide piece in the axial direction are through, a large-diameter opening faces the suspension mechanism, and the traction rope is movably arranged in the flared guide piece in a penetrating mode; the flaring guide piece is used for restraining the suspension mechanism from rising in the vertical direction so that the trigger piece can trigger the switch piece. According to the suspension device, the traction rope can be prevented from being excessively wound or insufficiently wound, and the safety and the reliability of an unmanned aerial vehicle transportation system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic cleaning robot technical field especially, relates to a kind of suspension device and unmanned vehicle transport system. BACKGROUND

[0002] The photovoltaic cleaning robot is a kind of automation equipment specially used for cleaning solar photovoltaic panel surface dust, dirt and other impurities. In order to improve the safety, convenience and efficiency of placing photovoltaic cleaning robot on solar photovoltaic panel or recovering photovoltaic cleaning robot from solar photovoltaic panel, unmanned aerial vehicle with grabbing mechanism is usually used to put and recover photovoltaic cleaning robot at present. The unmanned aerial vehicle is equipped with a winch, the rope end of the winch is connected with the grabbing mechanism, the grabbing mechanism realizes connection with the photovoltaic cleaning robot, and the winch is used to wind and unwind the rope to realize the putting and recovery of the photovoltaic cleaning robot. However, the excessive winding of the rope of the winch can cause the collision between the photovoltaic cleaning robot and the unmanned aerial vehicle, or the insufficient recovery can cause the photovoltaic cleaning robot to be suspended at a too low height and cause accidents during movement, and the safety of the unmanned aerial vehicle is insufficient. SUMMARY

[0003] One object of the utility model is to provide a suspension device, which can solve one of the above technical problems.

[0004] To achieve this object, the utility model adopts the following technical solutions:

[0005] A suspension device is provided, which comprises a suspension assembly and a winding assembly. The suspension assembly comprises a traction rope and a suspension mechanism connected to one end of the traction rope. The suspension mechanism is used to connect a suspension member. The winding assembly comprises a rack and a winding wheel rotatably arranged on the rack. The other end of the traction rope is wound around the winding wheel. The winding wheel can rotate to wind and unwind the traction rope. The suspension device further comprises a switch assembly and a guide assembly. The switch assembly comprises a trigger member and a switch member. The switch member is communicatively connected to the winding assembly. One of the trigger member and the switch member is arranged on the suspension mechanism, and the other is arranged on the rack.

[0006] The guide assembly comprises an expanded port guide arranged on the rack and having a horn shape. The expanded port guide is through at both ends in the axial direction, and the large-diameter opening faces the suspension mechanism. The traction rope is movably arranged in the expanded port guide. When the winding wheel winds the traction rope, the expanded port guide is used to constrain the suspension mechanism to rise in the vertical direction so that the trigger member can trigger the switch member.

[0007] In one of the embodiments, the guiding assembly further comprises a matching guide, which is arranged on the suspension mechanism, and one end of the traction rope away from the winding assembly is connected to the matching guide. The matching guide is in the shape of a conical frustum, and the small-diameter end faces the winding assembly. The diameter of the small-diameter end of the matching guide is smaller than the diameter of the large-diameter opening of the flared guide. The matching guide is axially movably inserted into the flared guide.

[0008] In one of the embodiments, the switch is arranged on the rack and located at the small-diameter opening of the flared guide. The trigger is arranged on the matching guide. When the matching guide moves in the flared guide, the trigger can abut against the switch to trigger the switch.

[0009] In one of the embodiments, the switch is arranged on the edge of the small-diameter opening to avoid the traction rope. The top of the small-diameter end of the matching guide has an axially protruding annular portion to form the trigger.

[0010] In one of the embodiments, the suspension device further comprises a lead assembly arranged on the rack. The lead assembly has a lead channel, the length of which extends in the vertical direction, and the lead channel is located at the middle of the length of the winding wheel. One end of the traction rope away from the winding wheel passes through the lead channel to be connected to the suspension mechanism.

[0011] In one of the embodiments, the lead assembly comprises two parallel arranged rotating shafts, which are arranged in parallel with the winding wheel. The rotating shafts are rotatably connected to the rack. The outer side of the rotating shafts is provided with a circumferentially extending guide groove, which is located at the middle of the length of the rotating shaft. The openings of the two guide grooves are opposite to each other to form the lead channel.

[0012] In one of the embodiments, the lead assembly further comprises a guide roller rotatably connected to the rack. The guide roller is arranged in parallel with the rotating shaft. The guide roller has two symmetrically arranged outer sides, which are respectively arranged to be inclined to the axis direction from the two ends to the middle of the guide roller. The connection of the two outer sides forms a recess, which is located above the lead channel. The traction rope at least circumferentially winds around part of the guide roller and is located in the recess. The recess is used to guide the traction rope into the lead channel.

[0013] And / or, the two rotating shafts each have a baffle part, the baffle part includes two baffles arranged in an axial direction, the baffles are radially protruding and circumferentially annularly arranged, the guide groove is formed between the two baffles, the width of the guide groove of one of the two rotating shafts is less than the width of the guide groove of the other rotating shaft, and the two baffle parts are staggered, and the two baffles of one of the baffle parts are at least partially located in the guide groove of the other baffle part.

[0014] In one of the embodiments, the suspension device further comprises a wire arranging assembly arranged on the frame, the wire arranging assembly comprises a rotating motor, a guide screw rod and a guide sliding block, the guide sliding block is threadedly connected to the guide screw rod, the guide screw rod and the shaft of the winding wheel are parallel to each other, the rotating motor is used to drive the guide screw rod to rotate, so that the guide sliding block reciprocally moves along the axial direction of the guide screw rod, the guide sliding block is provided with a wire passing hole, and the traction rope is slidably arranged in the wire passing hole.

[0015] In one of the embodiments, the guide screw rod is a double-threaded reciprocating screw rod, the double-threaded reciprocating screw rod has two thread grooves with opposite rotation directions and intersecting with each other.

[0016] And / or, the wire arranging assembly further comprises a guide rod arranged in parallel with the guide screw rod, the guide sliding block is provided with a guide hole, and the guide rod is movably arranged in the guide hole.

[0017] Another purpose of the utility model is to provide a kind of unmanned aerial vehicle transport system, and its suspension device can solve the problem that photovoltaic cleaning robot and unmanned aerial vehicle collide due to excessive winding of the rope of existing unmanned aerial vehicle, and the insufficient recovery leads to the accident of photovoltaic cleaning robot in the process of suspension, improve the safety of unmanned aerial vehicle transport system.

[0018] To achieve this purpose, the utility model further adopts the following technical solutions:

[0019] Provide a kind of unmanned aerial vehicle transport system, including above-mentioned suspension device, further include carrying unmanned aerial vehicle, the carrying unmanned aerial vehicle is connected to the frame of the suspension device.

[0020] The utility model has the advantages of:

[0021] The suspension device provided by this utility model includes a switch assembly and a guide assembly. The switch assembly includes a trigger and a switch element, which are communicatively connected to a winding assembly. The switch element can transmit a switch signal to the winding assembly, which controls the winding and unwinding of the reel. When the switch element is triggered by the trigger, it indicates that the traction rope has lifted the suspension mechanism to a certain height. At this point, the reel needs to stop rotating to prevent the traction rope from being over-wound, which could cause the suspension mechanism or suspended component to collide with the winding assembly above. When the switch element is not triggered, it indicates that the traction rope is not fully wound, and the reel needs to continue rotating to lift the suspended component, preventing the suspended component from being suspended too low and causing accidents during movement. One of the trigger and the switch element is located in the suspension mechanism, and the other is located in the frame. The trigger can activate the switch element during the vertical as the suspension mechanism rises relative to the frame. The guide assembly includes a flared guide element located in the frame and shaped like a trumpet. The flared guide element extends through both ends along the axial direction, with the larger diameter opening facing the suspension mechanism. The traction rope is movably threaded through the flared guide. When the reel winds up the traction rope, it drives the suspension mechanism to move upward to retrieve the suspension component. Since the traction rope is flexible, the suspension mechanism will inevitably deflect during the ascent. The flared guide has a large diameter opening, which guides the suspension mechanism to enter the flared guide. Moreover, under the constraint of the gradually narrowing inner wall of the flared guide, the suspension mechanism rises vertically. The relative position between the trigger and the switch is accurate, ensuring that the trigger can activate the switch.

[0022] The drone transportation system provided by this utility model has the above-mentioned suspension device, which can prevent the tow rope from being over-wound or under-wound, thereby improving the safety and reliability of the drone transportation system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the suspension device provided in one embodiment of the present invention;

[0024] Figure 2 yes Figure 1 Top view of the structure;

[0025] Figure 3 This is a partial bottom view of the guide assembly and switch assembly provided in this embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the lead wire assembly provided in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the suspension device provided in another embodiment of the present invention;

[0028] Figure 6 yes Figure 5a structural top view of the cable arrangement;

[0029] Figure 7 is a structural schematic view of the cable arrangement provided by the embodiment of the present application.

[0030] in the figure:

[0031] 1, suspension assembly; 11, suspension mechanism; 12, traction rope; 13, isolation protective net; 2, winding assembly; 21, rack; 22, winding wheel; 23, winding wheel motor; 3, switch assembly; 31, trigger piece; 32, switch piece; 4, guide assembly; 41, flared guide piece; 411, large-diameter opening; 412, small-diameter opening; 42, matching guide piece; 421, small-diameter end; 5, cable arrangement; 51, rotary motor; 52, guide screw; 53, guide slider; 531, threading hole; 54, guide rod; 6, lead assembly; 61, lead passage; 62, rotating shaft; 621, guide groove; 622, baffle part; 63, guide roller; 631, recessed part. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the "above", "upper" and "upper surface" of the first feature relative to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature relative to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0036] As Figure 1 And Figure 2 As shown, the present embodiment first provides a suspension device, the suspension device includes suspension assembly 1 and winding assembly 2, suspension assembly 1 includes traction rope 12 and the suspension mechanism 11 connected to the traction rope 12 one end.Suspension mechanism 11 is used to connect the suspension piece (not shown in the figure), and the suspension piece includes but is not limited to photovoltaic cleaning robot, package and robot dog, etc.Winding assembly 2 includes rack 21 and reel 22 rotatably arranged on rack 21, the other end of traction rope 12 is wound on reel 22, and reel 22 can rotate to wind and unwind traction rope 12.

[0037] The suspension device further includes switch assembly 3 and guide assembly 4, switch assembly 3 includes trigger 31 and switch piece 32, switch piece 32 is communicatively connected to winding assembly 2, switch piece 32 can transmit switch signal to winding assembly 2, and winding assembly 2 controls the winding and unwinding of reel 22;When switch piece 32 is triggered by trigger 31, it indicates that traction rope 12 has driven suspension mechanism 11 to rise to a certain height, at this time, reel 22 needs to stop rotating to avoid traction rope 12 being excessively wound, causing suspension mechanism 11 or suspension piece to collide with the upper winding assembly 2;When switch piece 32 is not triggered by trigger 31, it indicates that traction rope 12 is not wound enough, and reel 22 needs to continue to rotate to lift the suspension piece to avoid the suspension height of the suspension piece being too low and causing accidents during movement.

[0038] One of the trigger 31 and the switch 32 is arranged on the suspension mechanism 11, and the other is arranged on the rack 21, and the trigger 31 can trigger the switch 32 when the suspension mechanism 11 rises relative to the rack 21 in the vertical direction. The guide assembly 4 includes a flared guide 41 arranged on the rack 21 and in a trumpet shape, both ends of the flared guide 41 are penetrated in the axial direction, and the large-diameter opening 411 faces the suspension mechanism 11. The traction rope 12 is movably arranged in the flared guide 41, and when the winding wheel 22 winds the traction rope 12, the traction rope 12 drives the suspension mechanism 11 to move upward to recover the suspension member. Since the traction rope 12 is flexible, the suspension mechanism 11 will inevitably be deflected during the rising process. The flared guide 41 has a large-diameter opening 411 with a large size, which ensures that the suspension mechanism 11 can enter the flared guide 41 under the guidance of the large-diameter opening 411. Moreover, under the constraint of the gradually converging inner cavity wall of the flared guide 41, the suspension mechanism 11 rises in the vertical direction, and the relative position between the trigger 31 and the switch 32 is accurate, which ensures that the trigger 31 can trigger the switch 32.

[0039] The suspension member includes but is not limited to a photovoltaic cleaning robot, a package, and a robot dog, etc. The suspension mechanism 11 is connected or disconnected with the suspension member through a mechanical structure. The specific structure of the suspension mechanism 11 can be arranged according to the prior art, which will not be described here in detail. The suspension mechanism 11 can be a grabbing unmanned aerial vehicle. The grabbing unmanned aerial vehicle is a multi-rotor unmanned aerial vehicle, and the grabbing unmanned aerial vehicle is provided with a mechanical arm, a laser radar, a camera, etc.

[0040] The guide assembly 4 further includes a matching guide 42 arranged on the suspension mechanism 11. The end of the traction rope 12 away from the winding assembly 2 is connected to the matching guide 42. The matching guide 42 is in a conical frustum shape, and the small-diameter end 421 faces the winding assembly 2. The diameter of the small-diameter end 421 of the matching guide 42 is smaller than the diameter of the large-diameter opening 411 of the flared guide 41. When the winding wheel 22 winds the traction rope 12, the small-diameter end 421 and the large-diameter opening 411 of the flared guide 41 have a size difference, and the small-diameter end 421 can more smoothly enter the flared guide 41. Then, the conical frustum-shaped matching guide 42 can better adapt to the shape of the inner cavity wall of the flared guide 41, avoiding the suspension mechanism 11 from swinging during the vertical movement. At the same time, during the carrying process, the cooperation of the conical frustum shape and the trumpet shape can reduce the shaking of the suspension assembly 1.

[0041] In an embodiment, the switch member 32 is a micro switch triggered by contact. The switch member 32 is arranged on the frame 21 at the small-diameter opening 412 of the flared guide 41, and the trigger member 31 is arranged on the mating guide 42. When the mating guide 42 moves in the flared guide 41, the trigger member 31 can abut against the switch member 32 to trigger the switch member 32. Of course, in other embodiments, the switch member 32 can be arranged as a proximity switch or the like.

[0042] In order to avoid the switch member 32 affecting the winding and unwinding of the traction rope 12, the switch member 32 is arranged at the edge of the small-diameter opening 412 to avoid the traction rope 12, as shown in Figure 3 Since the mating guide 42 can rotate around the axis during vertical lifting, in order to avoid the circumferential rotation of the mating guide 42 affecting the triggering action of the switch member 32, the top of the small-diameter end 421 of the mating guide 42 has an axially protruding annular portion to form the trigger member 31. Even if the mating guide 42 rotates, it ensures that the trigger member 31 can abut against the switch member 32 during lifting.

[0043] In an embodiment, the suspension device further comprises a lead assembly 6 arranged on the frame 21, as shown in Figure 1 and Figure 2 The lead assembly 6 has a lead channel 61, the length of the lead channel 61 extends in the vertical direction, and the lead channel 61 is located at the middle of the length direction of the winding wheel 22. The end of the traction rope 12 away from the winding wheel 22 passes through the lead channel 61 to be connected to the suspension mechanism 11. Through the guiding action of the lead channel 61, the traction rope 12 drawn out of the winding wheel 22 is located at the middle of the length direction of the winding wheel 22. The frame 21 comprises two support plates arranged in the thickness direction, the two ends of the winding wheel 22 are respectively arranged on the two support plates, and the traction rope 12 is relatively close to the middle of the thickness direction of the frame 21, which is beneficial to improve the overall balance of the suspension device during traction and avoid deflection.

[0044] Specifically, the lead assembly 6 comprises two parallel arranged rotating shafts 62, as shown in Figure 4 The rotating shafts 62 are arranged parallel to the winding wheel 22 and are rotatably connected to the frame 21. The outer side of the rotating shaft 62 is provided with a circumferentially extending guide groove 621, and the guide groove 621 is located at the middle of the length direction of the rotating shaft 62. The openings of the two guide grooves 621 are opposite to each other to form the lead channel 61. During the winding and unwinding of the traction rope 12, the rotating shaft 62 will rotate when moving in the lead channel 61, reducing the friction between the rotating shaft 62 and the traction rope 12 and avoiding the wear of the traction rope 12.

[0045] The lead assembly 6 further comprises a guide roller 63 rotatably connected to the frame 21, the guide roller 63 and the rotation shaft 62 are parallel, the guide roller 63 has two symmetrical outer sides, the outer sides are respectively formed by two end portions of the guide roller 63 to the middle portion being inclined to the axis direction, the connecting portion of the two outer sides forms a recess 631, the recess 631 is above the lead passage 61. The traction rope 12 led out by the winding wheel 22 is first connected to the guide roller 63, the traction rope 12 at least circumferentially winds around the guide roller 63 and is located in the recess 631, the recess 631 is used for guiding the traction rope 12 to enter the lead passage 61. The guide roller 63 guides the traction rope 12, the guide roller 63 has a certain buffering property, which avoids the traction rope 12 from being stuck between the two rotation shafts 62.

[0046] The two rotation shafts 62 each have a baffle portion 622, the baffle portion 622 comprises two axially spaced baffles, the baffles are radially protruded and circumferentially annularly arranged, the two baffles form a guide groove 621 therebetween, the width of the corresponding guide groove 621 of one of the two rotation shafts 62 is smaller than the width of the corresponding guide groove 621 of the other rotation shaft 62, the two baffle portions 622 are staggered, the two baffles of one of the baffle portions 622 are at least partially located in the guide groove 621 of the other baffle portion 622.

[0047] In another embodiment, the rotation of the winding wheel 22 is driven by the winding wheel motor 23, the winding wheel 22 has a certain axial length, in order to improve the uniformity of the arrangement of the traction rope 12 on the winding wheel 22, the suspension device further comprises a wire arranging assembly 5 arranged on the frame 21, as shown in Figure 5 The wire arranging assembly 5 comprises a rotating motor 51, a guide screw 52 and a guide sliding block 53, as shown in Figure 7 The guide sliding block 53 is threadedly connected to the guide screw 52, the guide screw 52 and the axis of the winding wheel 22 are parallel. The rotating motor 51 is used to drive the guide screw 52 to rotate, so that the guide sliding block 53 reciprocates along the axial direction of the guide screw 52, the guide sliding block 53 is provided with a threading hole 531, and the traction rope 12 is slidably arranged in the threading hole 531. The winding wheel motor 23 drives the winding wheel 22 and the rotating motor 51 to rotate at the same time, the rotation of the rotating motor 51 causes the guide sliding block 53 to reciprocate along the axial direction of the guide screw 52, and the guide sliding block 53 guides the traction rope 12 to be uniformly arranged on the winding wheel 22 along the axial direction, thereby avoiding the traction rope 12 from gathering at a certain position of the winding wheel 22, which causes the suspension device to lose balance.

[0048] The guide screw 52 is a double-thread reciprocating screw, the double-thread reciprocating screw has two thread grooves with opposite rotation directions and intersecting with each other, and the winding wheel motor 23 only needs to rotate in one direction to realize the reciprocating movement of the guide sliding block 53 on the guide screw 52, without the need for the winding wheel motor 23 to frequently stop and reverse.

[0049] In order to improve the smoothness of the movement of the guide slider 53, the wire arrangement assembly 5 further comprises a guide rod 54 arranged in parallel with the guide screw rod 52, and the guide slider 53 is provided with a guide hole, and the guide rod 54 is movably arranged in the guide hole.

[0050] It should be noted that, in an embodiment, the suspension device has the wire arrangement assembly 6, which is located between the winding wheel 22 and the flared guide 41, as shown in Figs. Figure 1 and Figure 2 In another embodiment, the suspension device has both the wire arrangement assembly 5 and the wire arrangement assembly 6, as shown in Figs. Figure 5 and Figure 6 At this time, the traction rope 12 led out by the winding wheel 22 first passes through the guide slider 53 of the wire arrangement assembly 5 and then extends to the guide roller 63 of the wire arrangement assembly 6 to enter the wire channel 61, so that the uniform arrangement of the traction rope 12 on the winding wheel 22 can be ensured, and the suspension device can be pulled in the middle close to the thickness direction of the rack 21, so that the overall stress of the suspension device is more uniform.

[0051] The utility model embodiment further provides an unmanned aerial vehicle transportation system, which is used for transferring the suspension member. The unmanned aerial vehicle transportation system comprises the suspension device according to any one of the above embodiments, and further comprises a carrying unmanned aerial vehicle (not shown) connected to the rack 21 of the suspension device. The suspension device has the switch assembly 3 and the guide assembly 4, the flared guide 41 has a large-diameter opening 411 with a large size to guide the suspension mechanism 11, so that the suspension mechanism 11 can enter the flared guide 41. Moreover, under the constraint of the gradually converging inner cavity wall of the flared guide 41, the suspension mechanism 11 ascends along the vertical direction, the relative position between the trigger 31 and the switch 32 is accurate, so that the trigger 31 can trigger the switch 32, the traction rope 12 is prevented from being excessively wound or insufficiently wound, and the safety and reliability of the unmanned aerial vehicle transportation system are improved.

[0052] The suspension member includes but is not limited to a photovoltaic cleaning robot, a parcel and a robot dog, and the specific structure of the carrying unmanned aerial vehicle can be arranged according to the prior art, which will not be described here in detail.

[0053] In order to further improve the safety of the unmanned aerial vehicle transportation system, the suspension assembly 1 is further provided with an isolation protective net 13 located above the suspension mechanism 11. When the suspension mechanism 11 grasps the suspension member, the isolation protective net 13 can isolate the suspension member and the carrying unmanned aerial vehicle, improve the protection of the suspension member and reduce the collision risk of the suspension member.

[0054] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A suspension device, comprising a suspension assembly (1) and a winding assembly (2), the suspension assembly (1) comprising a traction rope (12) and a suspension mechanism (11) connected to one end of the traction rope (12), the suspension mechanism (11) being used for connecting a suspended object, the winding assembly (2) comprising a frame (21) and a winding wheel (22) rotatably arranged on the frame (21), the other end of the traction rope (12) being wound around the winding wheel (22), the winding wheel (22) being capable of winding and unwinding the traction rope (12), characterized in that the suspension device further comprises a switch assembly (3) and a guide assembly (4), the switch assembly (3) comprising a trigger (31) and a switch (32), the switch (32) being communicatively connected to the winding assembly (2), one of the trigger (31) and the switch (32) being arranged on the suspension mechanism (11) and the other being arranged on the frame (21); the guide assembly (4) comprising a flared guide (41) arranged on the frame (21) and having a flared shape, the flared guide (41) being penetrated through at both axial ends thereof, and a large-diameter opening (411) of the flared guide (41) facing the suspension mechanism (11), the traction rope (12) being movably arranged in the flared guide (41), when the winding wheel (22) winds the traction rope (12), the flared guide (41) is used for restricting the suspension mechanism (11) from ascending in a vertical direction so that the trigger (31) can trigger the switch (32). The guide assembly (4) further comprises a cooperating guide (42) arranged on the suspension mechanism (11), one end of the traction rope (12) away from the winding assembly (2) being connected to the cooperating guide (42), the cooperating guide (42) having a frustum shape, and a small-diameter end (421) of the cooperating guide (42) facing the winding assembly (2), the diameter of the small-diameter end (421) of the cooperating guide (42) being smaller than that of the large-diameter opening (411) of the flared guide (41), the cooperating guide (42) being axially movably inserted into the flared guide (41). The switch (32) is arranged on the frame (21) and located at a small-diameter opening (412) of the flared guide (41), the trigger (31) is arranged on the cooperating guide (42), when the cooperating guide (42) moves in the flared guide (41), the trigger (31) can abut against the switch (32) to trigger the switch (32).

2. The suspension device of claim 1, wherein The switch (32) is arranged on the edge of the small-diameter opening (412) to avoid the traction rope (12), the top of the small-diameter end (421) of the cooperating guide (42) has an annular portion protruding in the axial direction to form the trigger (31).

3. The suspension device of claim 2, wherein ​ 4. The suspension device of claim 3, wherein ​ 5. The suspension apparatus of claim 1 wherein, The suspension device further comprises a lead assembly (6) arranged on the frame (21), the lead assembly (6) has a lead channel (61), the length of the lead channel (61) extends in the vertical direction, and the lead channel (61) is located at the middle of the length direction of the winding wheel (22), and one end of the traction rope (12) away from the winding wheel (22) passes through the lead channel (61) to be connected to the suspension mechanism (11).

6. The suspension device of claim 5, wherein The lead assembly (6) comprises two parallel arranged rotating shafts (62), the rotating shafts (62) and the winding wheel (22) are arranged in parallel, the rotating shafts (62) are rotatably connected to the frame (21), the outer side of the rotating shafts (62) is provided with a circumferentially extending guide groove (621), the guide groove (621) is located at the middle of the length direction of the rotating shafts (62), and the openings of the two guide grooves (621) are opposite to each other to form the lead channel (61).

7. The suspension device of claim 6, wherein The lead assembly (6) further comprises a guide roller (63) rotatably connected to the frame (21), the guide roller (63) and the rotating shafts (62) are arranged in parallel, the guide roller (63) has two symmetrically arranged outer sides, the outer sides are respectively arranged to be inclined to the axis direction from the two ends to the middle of the guide roller (63), the connecting part of the two outer sides forms a recess (631), the recess (631) is located above the lead channel (61), the traction rope (12) at least circumferentially winds around part of the guide roller (63) and is located in the recess (631), and the recess (631) is used for guiding the traction rope (12) into the lead channel (61); And / or, the two rotating shafts (62) each have a baffle part (622), the baffle part (622) respectively comprises two axially spaced baffles, the baffles are radially protruding and circumferentially arranged, the guide groove (621) is formed between the two baffles, the width of the corresponding guide groove (621) of one of the two rotating shafts (62) is smaller than the width of the corresponding guide groove (621) of the other rotating shaft (62), and the two baffle parts (622) are staggered, and the two baffles of one of the baffle parts (622) are at least partially located in the guide groove (621) of the other baffle part (622).

8. The suspension device according to any one of claims 1-7, characterized in that The suspension device further comprises a wire arranging assembly (5) arranged on the frame (21), the wire arranging assembly (5) comprising a rotary motor (51), a guide screw (52) and a guide slider (53), the guide slider (53) being threadedly connected to the guide screw (52), the guide screw (52) and the shaft of the winding wheel (22) being parallel to each other, the rotary motor (51) being used to drive the guide screw (52) to rotate, so as to make the guide slider (53) reciprocate along the axial direction of the guide screw (52), the guide slider (53) being provided with a wire passing hole (531), and the traction rope (12) is slidably arranged in the wire passing hole (531).

9. The suspension device of claim 8, wherein The guide screw (52) is a double-thread reciprocating screw, and the double-thread reciprocating screw has two thread grooves with opposite rotation directions and intersecting with each other. And / or, the wire arranging assembly (5) further comprises a guide rod (54) arranged in parallel with the guide screw (52), the guide slider (53) is provided with a guide hole, and the guide rod (54) is movably arranged in the guide hole.

10. An unmanned aerial vehicle delivery system for transferring a suspended item, comprising: The unmanned aerial vehicle transportation system comprises the suspension device according to any one of claims 1-9, and further comprises a carrying unmanned aerial vehicle connected to the frame (21) of the suspension device.

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