Hydrogen fuel cell power stringing unmanned aerial vehicle

Abstract

The invention relates to the technical field of electric power stringing unmanned aerial vehicles, in particular to a hydrogen fuel cell electric power stringing unmanned aerial vehicle which comprises an unmanned aerial vehicle body, the unmanned aerial vehicle body comprises a vehicle body, a vehicle frame, propellers and supporting legs, the vehicle frame is arranged on the side face of the vehicle body, the propellers are arranged on the vehicle frame, and the supporting legs are arranged below the vehicle body; the stringing piece comprises a fixing rod and a paying-off piece, the fixing rod is fixedly connected with the supporting legs, a notch section is arranged on the fixing rod, the paying-off piece comprises a supporting frame, a first paying-off roller and a second paying-off roller, the supporting frame is rotationally arranged at the notch section, and the first paying-off roller is arranged on the supporting frame. The first pay-off roller and the second pay-off roller are rotationally connected with the two ends of the supporting frame correspondingly. The wire stringing piece can apply a certain pulling force when the wire is wound by branches and the like, the wire is tried to be pulled out, and after the pulling force is exceeded and the wire cannot be pulled out, the inner rod is separated from the unmanned aerial vehicle, so that the unmanned aerial vehicle is prevented from being damaged.

Description

Technical Field

[0001] This invention belongs to the field of power line construction drone technology, specifically a hydrogen fuel cell power line construction drone. Background Technology

[0002] With the rapid development of power line erection drone technology both domestically and internationally, power line erection drones are being widely used across various industries. In power facility construction, power line erection drones are increasingly favored due to their flexibility, cost-effectiveness, and ease of use. Their development has been rapid in recent years, with demand growing daily and a promising market outlook.

[0003] However, due to the limited load capacity of power line laying drones, when using them to lay power cables, the drones often malfunction or crash due to excessive tension caused by the cable getting tangled, resulting in unnecessary economic losses. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Given the following technical problems in the existing technology: the existing technology cannot effectively prevent power line drones from malfunctioning or crashing due to sudden excessive tension.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a hydrogen fuel cell power line unmanned aerial vehicle (UAV), comprising, The main body of the drone includes a fuselage, a frame, a propeller, and legs. The frame is located on the side of the fuselage, the propeller is located on the frame, and the legs are located below the fuselage. A wire-laying component includes a fixed rod and a wire-laying component. The fixed rod is fixedly connected to a support leg and has a notch section. The wire-laying component includes a support frame, a first wire-laying roller, and a second wire-laying roller. The support frame is rotatably mounted at the notch section, and the first and second wire-laying rollers are rotatably connected to both ends of the support frame, respectively.

[0007] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, the side of the notch section is provided with a first shaft groove, the support frame includes two symmetrically arranged side plates and a connecting rod connecting the two side plates, and a first embedded shaft is provided on the outer side of the side plate, the first embedded shaft being embedded in the first shaft groove.

[0008] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, the inner side of the side plate is provided with an annular groove, a vertical groove and an arc groove, and the vertical groove connects the annular groove and the arc groove.

[0009] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, the wire-laying component further includes a movable rod with square rods at both ends and a square groove next to the vertical groove; the square rods are embedded in the square grooves, and a first spring connects the square rods in the square grooves.

[0010] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, the first wire-laying roller includes an outer tube and an end ring disposed at the end of the outer tube. The outer tube is provided with a first through groove, and the end ring is provided with a second through groove. The end ring is embedded in the annular groove.

[0011] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, the first wire-laying roller further includes an inner rod and a side rod disposed at the end of the inner rod. The inner rod is disposed in the first through groove, the side rod is disposed in the second through groove, and the side rod is disposed in the annular groove; a wire-binding groove is provided on the inner rod.

[0012] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, a second spring is provided on the inner side of the outer tube and connected to the side plate.

[0013] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, the second wire-laying roller includes a shaft tube and discs disposed at both ends of the shaft tube. The shaft tube is sleeved on the connecting rod, and a wire-expanding rod is also connected between the discs.

[0014] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, the disk is provided with a transition groove, the lower side of the transition groove is provided with a slot, the slot corresponds to the arc groove, and a stop block is formed on the outer side of the slot, the stop block corresponds to the moving rod.

[0015] As a preferred technical solution for a hydrogen fuel cell power line-laying drone, the shaft tube and the connecting rod are connected by a torsion spring, and the torsion spring causes the stop block to contact the moving rod.

[0016] The beneficial effects of the present invention are as follows: When the cable is entangled by tree branches or other objects, the cable holder of the present invention can apply a certain pulling force in addition to the active control of the drone's movement to try to pull the cable out. If the pulling force is exceeded but the cable still cannot be pulled out, the inner rod will detach from the drone to avoid damage to the drone. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded structural diagram of the overhead line component in this invention; Figure 3 This is a cross-sectional structural diagram of the overhead line component in this invention; Figure 4 This is a schematic diagram of the support frame in this invention; Figure 5 This is a schematic diagram of the structure of the first pay-off roller in this invention; Figure 6 This is a schematic diagram of the winding state structure.

[0018] Reference numerals: 100, UAV body; 103, propeller; 102, frame; 101, fuselage; 200, cable tray; 104, leg; 201, fixing rod; 201a, notch section; 203, support frame; 203c, first embedded shaft; 201b, first shaft groove; 202, cable feeder; 203e, vertical groove; 203g, square groove; 203h, first spring; 204b, end ring; 204, first cable feed roller; 204c, first through groove; 204d, second through groove; 204f, side rod; 203d. Circular groove; 204e, inner rod; 204g, binding groove; 204a, outer tube; 204h, second spring; 203a, side plate; 205, second feed roller; 205c, expansion rod; 205b, disc; 205d, transition curved groove; 203f, arc groove; 205e, slot; 205f, stop block; 206, moving rod; 205a, shaft tube; 203b, connecting rod; 300, pull wire; 205g, fixing ring; 205h, slip ring; 205j, side ring plate; 205k, guide arc groove; 205m, radial surface. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0023] Example 1 Reference Figures 1-6 This embodiment provides a hydrogen fuel cell power line-laying drone, including a drone body 100, which includes a fuselage 101, a frame 102, a propeller 103, and legs 104. The frame 102 is disposed on the side of the fuselage 101, the propeller 103 is disposed on the frame 102, and the legs 104 are disposed below the fuselage 101. A power line-laying component 200 includes a fixing rod 201 and a power line-laying component 202. The fixing rod 201 is fixedly connected to the legs 104. The fixing rod 201 is provided with a notch section 201a. The power line-laying component 202 includes a support frame 203, a first power line-laying roller 204, and a second power line-laying roller 205. The support frame 203 is rotatably disposed at the notch section 201a, and the first power line-laying roller 204 and the second power line-laying roller 205 are respectively rotatably connected to both ends of the support frame 203.

[0024] In this application, a hydrogen fuel cell is installed on the drone as a power source. It should be noted that this application does not improve the hydrogen fuel cell; the mention of the hydrogen fuel cell refers to the fact that this application is equipped with a hydrogen fuel cell.

[0025] In this embodiment, a fixing rod 201 is provided between the legs 104, and the pull wire 300 is tied to the binding groove 204g on the inner rod 204e. The inner rod 204e has a positioning device embedded inside. The positioning device adopts the prior art and its function is to position the end of the pull wire 300 when it falls off.

[0026] The notch section 201a has a first shaft groove 201b on its side. The support frame 203 includes two symmetrically arranged side plates 203a and a connecting rod 203b connecting the two side plates 203a. A first embedded shaft 203c is provided on the outer side of the side plate 203a and is embedded in the first shaft groove 201b.

[0027] The first feed roller 204 is used to relieve the tension on the drone when the pull line 300 is caught on something such as a tree branch, so as to prevent the drone from being pulled suddenly and not being able to react in time, causing a malfunction. The second feed roller 205 is used to apply a pulling force to the pull line 300 to try to get the pull line 300 off the tree branch. If the pull line 300 cannot get off the tree branch, the inner rod 204e will restrict the rotation of the second feed roller 205. Under the pull of the pull line 300, the second feed roller 205 will rotate. When it rotates to a certain position, the inner rod 204e will automatically disengage, and the drone will return. The positioning device in the inner rod 204e will locate the end of the line.

[0028] Furthermore, the amount of rotation of the second feed roller can be monitored to allow the drone to determine whether the inner rod 204e has fallen off.

[0029] The inner side of the side plate 203a is provided with an annular groove 203d, a vertical groove 203e and an arc groove 203f, and the vertical groove 203e connects the annular groove 203d and the arc groove 203f.

[0030] The vertical groove 203e is connected to the annular groove 203d and the arc groove 203f with rounded corners to facilitate the movement and repositioning of the inner rod 204e.

[0031] The wire feeding component 202 also includes a movable rod 206, with square rods at both ends of the movable rod 206, and a square groove 203g is provided next to the vertical groove 203e; the square rods are embedded in the square groove 203g, and a first spring 203h is provided in the square groove 203g to connect the square rods.

[0032] The square groove 203g and the vertical groove 203e are arranged in parallel. The square groove 203g is used to limit and guide the moving rod 206. In the initial state, the moving rod 206 is at the lowest end of the square groove 203g due to the downward push of the first spring 203h.

[0033] The first wire feeding roller 204 includes an outer tube 204a and an end ring 204b disposed at the end of the outer tube 204a. The outer tube 204a is provided with a first through groove 204c, and the end ring 204b is provided with a second through groove 204d. The end ring 204b is embedded in the annular groove 203d.

[0034] Therefore, the outer tube 204a can rotate under the limiting action of the end ring 204b, and the outer tube 204a drives the inner rod 204e to rotate together.

[0035] The first wire feeding roller 204 also includes an inner rod 204e and a side rod 204f disposed at the end of the inner rod 204e. The inner rod 204e is disposed in the first through groove 204c, the side rod 204f is disposed in the second through groove 204d, and the side rod 204f is disposed in the annular groove 203d. A wire binding groove 204g is provided on the inner rod 204e.

[0036] The end of the pull cord 300 is wrapped in the binding groove 204g. It should be noted that a storage structure can be set in the binding groove 204g to store and hide the knot of the rope used to tie the end of the cord, so as not to affect the movement of the inner rod 204e. The binding groove 204g itself is a storage structure, which can be set according to the specific needs.

[0037] The outer tube 204a is used to limit the inner rod 204e.

[0038] A second spring 204h is provided on the inner side of the outer tube 204a and is connected to the side plate 203a.

[0039] Specifically, a second arc groove may be provided on the inner side of the side plate 203a, with a central angle greater than 180°. An extension plate is provided on the inner side of the outer tube 204a, extending into the second arc groove. A second spring 204h is provided in the second arc groove and connects to the extension plate. This gives the outer tube 204a an initial position. When the outer tube 204a rotates, it will compress the second spring 204h. At the same time, the setting of the second arc groove limits the rotation angle of the outer tube 204a. It should be noted that the maximum rotation angle of the outer tube 204a should be greater than 180°.

[0040] The second wire feeding roller 205 includes a shaft tube 205a and discs 205b disposed at both ends of the shaft tube 205a. The shaft tube 205a is sleeved on the connecting rod 203b, and a wire expanding rod 205c is connected between the discs 205b.

[0041] A fixed ring 205g is fixed on the extension rod 205c. A sliding ring 205h is slidably connected to the fixed ring 205g. The sliding ring 205h is limited to rotate within the fixed ring 205g. Specifically, an annular groove can be provided on the fixed ring 205g. An embedded ring is provided inside the sliding ring 205h. The embedded ring is embedded in the annular groove to limit the movement of the sliding ring 205h. Side ring plates 205j are provided on both sides of the outer side of the sliding ring 205h. The side ring plates 205j are used to limit the movement of the wire wound around the outer side of the sliding ring 205h.

[0042] The disc 205b is provided with a transition groove 205d, and a slot 205e is provided on the lower side of the transition groove 205d. The slot 205e corresponds to the arc groove 203f. An abutment 205f is formed on the outer side of the slot 205e, and the abutment 205f corresponds to the moving rod 206.

[0043] The transition groove 205d is used to transition from the connecting slot 205e to the stop block 205f.

[0044] A guide arc groove 205k is provided at the connection between the slot 205e and the transition curved groove 205d. When the abutment block 205f abuts against the moving rod 206, the guide arc groove 205k corresponds to the vertical groove 203e. The inner rod 204e can enter the slot 205e from the vertical groove 203e through the guide arc groove 205k. The guide arc groove 205k is set to control the moving direction of the inner rod 204e, that is, when it is pulled, it enters the arc groove 203f and moves counterclockwise.

[0045] A radial surface 205m is provided between the slot 205e and the stop block 205f, which is used to allow the inner rod 204e to disengage from the disk 205b at the end.

[0046] The shaft tube 205a and the connecting rod 203b are connected by a torsion spring. The torsion spring causes the abutment block 205f to contact the moving rod 206. That is, rotating the disc 205b counterclockwise can cause the torsion spring to store force. In the initial state, when the abutment block 205f is against the moving rod 206, the torsion spring is in a stored state. After the moving rod 206 is removed, the torsion spring can cause the disc 205b to rotate clockwise by nearly half a turn.

[0047] In the initial state, under the action of the first spring 203h, the moving rod 206 is at the lowest end of the square groove 203g, and at this time the abutment block 205f abuts against one side of the moving rod 206.

[0048] When the line is tangled and pulled by tree branches, the present invention will not suddenly apply force to the drone, but will have a transition time. It will first try to pull the line slowly, and when it is confirmed that it cannot be pulled out, the inner rod 204e will be detached from the drone to avoid damage to the drone.

[0049] Furthermore, refer to Figure 6 In this invention, the winding method is to fix the wire end on the inner rod 204e, and then pass the inner rod 204e around the abutment block 205f and the moving rod 206. The end of the inner rod 204e passes through the arc groove 203f and the pull wire 300, and then passes around the slip ring 205h once, driving the pull wire 300 to pass around the abutment block 205f and the moving rod 206 again. The inner rod 204e is then moved through the arc groove 203f and the vertical groove 203e to the first through groove 204c. Then, under the action of the second spring 204h, the outer tube 204a rotates, and the inner rod 204e is rotated to the top position.

[0050] At this time, after the tension is applied to one end of the pull line 300, there is friction between the pull line 300 and the slip ring 205h. The slip ring 205h will be driven to rotate. Since the size of the slip ring 205h is larger than that of the outer tube 204a, the tension tends to pull the inner rod 204e and drive the outer tube 204a to rotate, and cause the inner rod 204e to enter the vertical groove. This process is the first buffer setting after the pull line is caught, so that the drone will not be pulled suddenly.

[0051] The inner rod 204e continues to be pulled. After entering the arc groove from the vertical groove, the inner rod 204e will press the moving rod 206 upward. The disc 205b rotates clockwise without obstruction under the action of the torsion spring. During the clockwise rotation, the inner rod 204e and the pull line will have a rightward pulling force. With the drone's power remaining unchanged, this is used to try to pull the pull line off the attached object. If it can be pulled off, the torsion spring will drive the inner rod 204e to rotate, and it will not fall off and can continue to work. If the pull line cannot be pulled off, the pulling force will counteract the clockwise rotational force of the torsion spring. That is, the disc will not rotate. Instead, the pulling force will continuously increase during the drone's movement, causing the disc 205b to overcome the torsion spring and continue to rotate counterclockwise. After one rotation, the inner rod 204e will detach from the radial surface 205m.

[0052] Since the inner rod 204e needs to be disengaged by rotating the disk counterclockwise from its natural state for about one and a half turns (the exact number depends on the initial position of the disk) and then returning to its original position against the moving rod, the movement of the disk can be monitored to determine whether the inner rod, i.e. the thread end, has disengaged.

[0053] The process of pulling the string to rotate the disc 205b counterclockwise one revolution is the second buffering process of this application.

[0054] It should be noted that the moving rod 206 is initially located near the arc groove, which hinders the movement of the inner rod 204e. When the inner rod 204e moves downward, it presses the moving rod 206 upward. Specifically, when the inner rod 204e moves in the arc groove 203f, it presses the moving rod 206 upward.

[0055] It should be noted that, due to the limited weight of the 300mm pull cord, the influence of the pull cord's weight is ignored in the description. In actual applications, the weight of the pull cord is roughly calculated based on the actual pull cord material and span length, and then the spring constant is selected accordingly. The torsion spring and the second spring are calculated separately. The spring constant of the second spring does not need to be particularly large, because its design is intended to facilitate detachment for cushioning purposes.

[0056] This application does not cause the wire to detach immediately after being subjected to force, but rather buffers the tension and attempts to pull it out before causing the inner rod to detach.

[0057] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hydrogen fuel cell power line-laying drone, characterized in that: include, The drone body (100) includes a fuselage (101), a frame (102), a propeller (103), and legs (104). The frame (102) is located on the side of the fuselage (101), the propeller (103) is located on the frame (102), and the legs (104) are located below the fuselage (101). The wire-laying component (200) includes a fixed rod (201) and a wire-laying component (202). The fixed rod (201) is fixedly connected to the support leg (104). The fixed rod (201) has a notch section (201a). The wire-laying component (202) includes a support frame (203), a first wire-laying roller (204), and a second wire-laying roller (205). The support frame (203) is rotatably disposed at the notch section (201a). The first wire-laying roller (204) and the second wire-laying roller (205) are rotatably connected to both ends of the support frame (203), respectively.

2. The hydrogen fuel cell power line drone according to claim 1, characterized in that: The notch section (201a) has a first shaft groove (201b) on its side. The support frame (203) includes two symmetrically arranged side plates (203a) and a connecting rod (203b) connecting the two side plates (203a). A first embedded shaft (203c) is provided on the outer side of the side plate (203a) and is embedded in the first shaft groove (201b).

3. The hydrogen fuel cell power line drone according to claim 2, characterized in that: The inner side of the side plate (203a) is provided with an annular groove (203d), a vertical groove (203e) and an arc groove (203f), and the vertical groove (203e) connects the annular groove (203d) and the arc groove (203f).

4. The hydrogen fuel cell power line drone according to claim 3, characterized in that: The wire feeding component (202) also includes a movable rod (206), with square rods at both ends of the movable rod (206), and a square groove (203g) is provided next to the vertical groove (203e); the square rod is embedded in the square groove (203g), and a first spring (203h) is provided in the square groove (203g) to connect the square rod.

5. The hydrogen fuel cell power line drone according to claim 4, characterized in that: The first wire feeding roller (204) includes an outer tube (204a) and an end ring (204b) disposed at the end of the outer tube (204a). The outer tube (204a) is provided with a first through groove (204c), and the end ring (204b) is provided with a second through groove (204d). The end ring (204b) is embedded in the annular groove (203d).

6. The hydrogen fuel cell power line drone according to claim 5, characterized in that: The first wire feeding roller (204) further includes an inner rod (204e) and a side rod (204f) disposed at the end of the inner rod (204e). The inner rod (204e) is disposed in the first through groove (204c), the side rod (204f) is disposed in the second through groove (204d), and the side rod (204f) is disposed in the annular groove (203d). A wire binding groove (204g) is provided on the inner rod (204e).

7. The hydrogen fuel cell power line drone according to claim 6, characterized in that: The inner side of the outer tube (204a) is provided with a second spring (204h) which is connected to the side plate (203a).

8. The hydrogen fuel cell power line drone according to claim 7, characterized in that: The second wire feeding roller (205) includes a shaft tube (205a) and discs (205b) disposed at both ends of the shaft tube (205a). The shaft tube (205a) is sleeved on the connecting rod (203b), and a wire expanding rod (205c) is connected between the discs (205b).

9. The hydrogen fuel cell power line drone according to claim 8, characterized in that: The disc (205b) is provided with a transition groove (205d), and a slot (205e) is provided on the lower side of the transition groove (205d). The slot (205e) corresponds to the arc groove (203f), and a stop block (205f) is formed on the outer side of the slot (205e). The stop block (205f) corresponds to the moving rod (206).

10. The hydrogen fuel cell power line drone according to claim 9, characterized in that: The shaft tube (205a) and the connecting rod (203b) are connected by a torsion spring, which causes the abutment block (205f) to contact the moving rod (206).

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