Large-load power grid scene suspension device

By introducing the self-locking structure of the robot body into the drone gripper device, the problem of goods falling when lifting large loads of goods is solved, and higher safety and reliability are achieved.

CN119773966APending Publication Date: 2025-04-08STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY +1
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202311521663.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-15
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

The existing drone gripper device lacks a locking and fixing mechanism when lifting large loads of goods, which can easily lead to the fall of the goods and poses safety hazards.

Method used

A large-load power grid scene suspension device is designed, adopting the self-locking structure of the robot body. Through the connection groove and insertion block of the first clamping plate and the second clamping plate, combined with the connecting rod and the slot of the self-locking mechanism, the fixed connection to the clamping plate is realized to prevent the goods from falling.

Benefits of technology

Through the design of the self-locking structure, the robot body can effectively fix the clamping plate to prevent the goods from falling during lifting, improving safety and reliability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119773966A_ABST
    Figure CN119773966A_ABST
Patent Text Reader

Abstract

The invention discloses a large-load power grid scene suspension device which comprises a connecting base, an unmanned aerial vehicle body is arranged on the upper surface of the connecting base, mounting mechanisms are arranged on the two sides of the connecting base, a manipulator body is arranged in the middle of the lower surface of the connecting base, and supporting frames are rotationally connected to the two ends of the lower surface of the connecting base. An adjusting mechanism is arranged at the upper end of the supporting frame, and the upper end of the adjusting mechanism is movably connected with the connecting base. The manipulator body can connect and fix the first clamping plate and the second clamping plate through the self-locking structure, so that goods are prevented from falling off when the manipulator body is used for hoisting. When the first clamping plate and the second clamping plate are closed, the inserting block can be inserted into the connecting groove, then the connecting rod of the self-locking mechanism is rotated, the lower end of the connecting rod is moved into the clamping groove of the second clamping plate, the positions of the first clamping plate and the second clamping plate can be fixed, and the connecting effect is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of suspension manipulators, and in particular to a suspension device for a large-load power grid scenario. Background Art

[0002] At present, in the operation of power transmission and transformation, there are situations such as emergency repair of sudden line failures in remote areas, construction crossing important areas, and replacement of hardware in mountainous areas. In such cases, manual labor is required to carry heavy items such as materials and tools on foot. At the same time, events such as climbing towers with loads, rope transmission, and online equipment installation will cause a lot of physical exhaustion of personnel and pose safety hazards. Therefore, a large-load drone is needed to perform a throwing function to assist in the operation.

[0003] After searching the prior art, CN211223884U discloses a gripper device for a drone. The gripper device includes a gripper device, which is composed of a clamping mechanism for clamping an object and a fixing mechanism connected to the clamping mechanism and the drone respectively, the fixing mechanism is located above the clamping mechanism and is connected to the clamping mechanism through a connecting seat, the clamping mechanism is composed of a clamping part that can be opened and closed for clamping an object and a connecting rod assembly that drives the clamping part to open and close, one end of the connecting rod assembly is provided with a motor part that controls the opening and closing of the clamping part, the fixing mechanism is composed of a middle partition plate with one end fixedly connected to the connecting seat, a screw assembly arranged on the middle partition plate, and a steering gear connected to the drone to control the rotation of the fixing mechanism, a motor part two that controls the screw assembly is provided above the middle partition plate, and a steering gear two that controls the rotation of the clamping mechanism is provided below the middle partition plate. The connecting rod assembly is composed of a top plate and a bottom plate spaced apart from each other, the top plate is located below the middle partition plate and the power supply unit 1 and the servo unit 2 are fixedly installed, a plurality of groups of hinged connecting rod components are arranged between the top plate and the bottom plate spaced apart from each other, and the connecting rod components are composed of two staggered connecting rods, the junction of the two staggered connecting rods is hinged through a hinge part, and a plurality of groups of connecting rod components composed of connecting rods staggered and hinged to each other drive the opening and closing of the clamping part.

[0004] In the comparative document, the opening and closing of the clamping part is controlled by the articulation of several connecting rods in the gripping device and the articulation of the corresponding connecting rods and connecting rods through the "connecting rod mechanism principle". This transmission method uses the principle of parallelogram to realize the extension and retraction of the clamping part through the articulation of connecting rods. However, when lifting heavy loads, there is no locking and fixing mechanism, which can easily cause the heavy load to fall from the gripping device, posing a safety hazard. Summary of the invention

[0005] The object of the present invention is to provide a heavy-load power grid suspension device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes a connecting base, the upper surface of which is provided with a drone body, mounting mechanisms are provided on both sides of the connecting base, a manipulator body is provided in the middle of the lower surface of the connecting base, both ends of the lower surface of the connecting base are rotatably connected to a support frame, an upper end of the support frame is provided with an adjustment mechanism, and the upper end of the adjustment mechanism is movably connected to the connecting base.

[0007] Preferably, the manipulator body includes a fixed base, and the number of the fixed bases is two, and the first clamping plate and the second clamping plate are rotatably connected to the two fixed bases respectively, and a servo is provided on one side of the two fixed bases, and the output ends of the two servos are fixedly connected to the first clamping plate and the second clamping plate respectively, and the lower ends of the first clamping plate and the second clamping plate are respectively provided with a connecting groove and an insertion block, the connecting groove is adapted to the insertion block, and a self-locking mechanism is provided between the connecting groove and the insertion block.

[0008] Preferably, the self-locking mechanism includes a connecting rod, which is arranged at the lower end of the first clamping plate and is rotatably connected to the first clamping plate, one end of the connecting rod away from the first clamping plate is clamped with the second clamping plate, and a slot is provided on the second clamping plate, which is adapted to the connecting rod, and a support spring is fixedly connected to one side of the connecting rod, and one end of the support spring is fixedly connected to the first clamping plate.

[0009] Preferably, a connecting rod is provided at the upper end of the support frame, and the support rod is rotatably connected to the connecting base through the connecting rod. A cross bar is provided in the middle of the support rod, and a connecting ring is rotatably connected to the middle of the cross bar.

[0010] Preferably, the adjustment mechanism includes a hydraulic telescopic rod, the upper end of the hydraulic telescopic rod is rotatably connected to a support base, the support base is fixedly connected to the side of the connecting base, the lower end of the hydraulic telescopic rod is fixedly connected to a connecting ring, and the hydraulic telescopic rod is rotatably connected to the support frame via the connecting ring.

[0011] Preferably, positioning blocks are fixedly connected to both sides of the slot opening of the card slot, and a limiting block is fixedly connected to one side of the positioning block close to the slot opening, and the limiting block is adapted to the connecting rod.

[0012] Preferably, a bracket is fixedly connected to the lower surface of the drone body, a connecting ear is fixedly connected to the upper surface of the connecting base, a connecting hole is opened on the connecting ear, the bracket passes through the connecting hole, and the connecting base is fixedly connected to the drone body through the connecting ear.

[0013] Preferably, a positioning rod is provided at the upper end of the support frame, and the support frame is rotatably connected to the connecting base via the positioning rod. A cross bar is provided in the middle of the support frame, and a connecting ring is rotatably connected to the middle of the cross bar.

[0014] Preferably, the mounting mechanism includes an adjusting plate, which is fixedly connected to the side of the connecting base, and a plurality of snap-in grooves are provided on the adjusting plate. A mounting ring is sleeved on the adjusting plate, and a connecting rod is fixedly connected to the lower end of the mounting ring. A movable groove is provided inside the mounting ring, and the movable groove is adapted to the size of the adjusting plate.

[0015] Preferably, limit cards are installed on the clamping slots on both sides of the adjustment plate, an installation slot is provided inside the limit card, the installation slot is matched with the size of the clamping slot, an opening is provided at one end of the limit card, and a positioning recess is provided on the upper and lower surfaces of the limit card near the opening. A plug is detachably connected to the limit card, a connecting protrusion is provided inside the plug, the connecting protrusion is matched with the positioning recess, and a reinforcing rib is fixedly connected to the outer surface of the plug.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The manipulator body can connect and fix the first clamping plate and the second clamping plate through a self-locking structure, so that the manipulator body can prevent the cargo from falling off during lifting. When the first clamping plate and the second clamping plate are closed, the insertion block will be inserted into the connection slot, and then the connecting rod of the self-locking mechanism will be rotated, and the lower end of the connecting rod will be moved into the slot of the second clamping plate, so that the position of the first clamping plate and the second clamping plate can be fixed, achieving a connection effect, preventing the first clamping plate and the second clamping plate from being separated during lifting, causing the lifted large load to fall off. The limit card fixedly connected to the slot can limit the position of the rotating rod after the rotating rod is screwed into the slot, preventing the rotating rod from falling off from the slot.

[0018] The present invention facilitates the disassembly and assembly of additional mounts by setting a mounting mechanism. When an additional mount needs to be installed, the mount is installed on the mounting rod of the mounting ring, and then the connecting ring is sleeved on the adjustment plate to complete the installation. After the connecting ring is fixed on the adjustment plate, upper limit cards are installed on both sides of the connecting ring to fix the position of the mounting ring and prevent the mounting ring from being displaced or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the robot body of the present invention;

[0021] Figure 3 It is a schematic diagram of the support frame structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the new type of mounting mechanism used in this paper;

[0023] Figure 5 This is a schematic diagram of the disassembly structure of the limit card of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the self-locking mechanism of the present invention;

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the self-locking mechanism of the present invention;

[0026] Figure 8 It is a cross-sectional schematic diagram of the rotation converter of the present invention.

[0027] In the figure: 1. connecting base; 2. drone body; 3. mounting mechanism; 4. manipulator body; 5. support frame; 6. adjustment mechanism; 7. connecting convex; 8. fixed base; 9. first clamping plate; 10. second clamping plate; 11. servo; 12. connecting groove; 13. insertion block; 14. self-locking mechanism; 15. connecting rod; 16. clamping groove; 17. supporting spring; 18. positioning rod; 19. cross bar; 20. connecting ring; 21. hydraulic telescopic rod; 22. supporting base; 23. positioning block; 24. limiting block; 25. bracket; 26. connecting ear; 27. grounding rod; 28. slide groove; 29. ​​rotating ring; 30. irradiation lamp; 31. adjustment plate; 32. clamping groove; 33. mounting ring; 34. mounting rod; 35. limiting card; 36. positioning concave; 37. plug; 38. reinforcing rib. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 5 , the embodiment provided by the present invention:

[0030] Embodiment: A suspension device for a large load power grid scene includes a connection base 1, and a drone body 2 is provided on the upper surface of the connection base 1. The drone body 2 can be used as a power source for transportation. A mounting mechanism 3 is provided on both sides of the connection base 1, and the mounting mechanism 3 can mount additional accessories required for use. The mounting mechanism 3 includes an adjustment plate 31, and the adjustment plate 31 is fixedly connected to the side of the connection base 1. A plurality of snap-in grooves 32 are provided on the adjustment plate 31, and a mounting ring 33 is sleeved on the adjustment plate 31. A connecting rod 15 is fixedly connected to the lower end of the mounting ring 33. The connecting rod 15 facilitates the connection and installation of the external mounting, and connects the external mounting to the drone body 2. A moving groove is provided inside the mounting ring 33, and the moving groove is adapted to the size of the adjustment plate 31. The mounting ring 33 can move freely on the adjustment plate 31 through the moving groove. Limiting cards 35 are installed on the snap-in grooves 32 on both sides of the adjustment plate 31, and the limiting cards 35 can limit the position of the mounting ring 33. The limit card 35 has an installation slot inside, and the size of the installation slot is matched with the size of the clamping slot 32. An opening is opened at one end of the limit card 35, and a positioning recess 36 is opened at one end of the upper and lower surfaces of the limit card 35 near the opening. A plug 37 is detachably connected to the limit card 35. A connecting protrusion 7 is opened inside the plug 37, and the connecting protrusion 7 is matched with the positioning recess 36. A reinforcing rib 38 is fixedly connected to the outer surface of the plug 37. The reinforcing rib 38 can strengthen the strength of the plug 37, reduce the deformation of the plug 37, and maintain elasticity. The plug 37 is combined with the limit card 35, and the limit card 35 can be fixed on the limit slot of the displacement adjustment plate 31.

[0031] A manipulator body 4 is provided in the middle of the lower surface of the connection base 1. The manipulator body 4 includes a fixed base 8. The number of the fixed bases 8 is two. The first clamping plate 9 and the second clamping plate 10 are rotatably connected to the two fixed bases 8 respectively. A steering gear 11 is provided on one side of the two fixed bases 8. The output ends of the two steering gears 11 are fixedly connected to the first clamping plate 9 and the second clamping plate 10 respectively. The steering gear 11 can play the effect of driving the first clamping plate 9 and the second clamping plate 10 to rotate. The lower ends of the first clamping plate 9 and the second clamping plate 10 are respectively provided with a connecting groove 12 and an inserting block 13. The connecting groove 12 is adapted to the inserting block 13. The connecting groove 12 and the inserting block 13 can play the effect of fixing the position when the first clamping plate 9 and the second clamping plate 10 are closed. A self-locking mechanism 14 is provided between the connecting groove 12 and the inserting block 13. The self-locking mechanism 14 can play the effect of fixing the position of the first clamping plate 9 and the second clamping plate 10.

[0032] The self-locking mechanism 14 includes a connecting rod 15, which is arranged at the lower end of the first clamping plate 9 and is rotatably connected to the first clamping plate 9. The end of the connecting rod 15 away from the first clamping plate 9 is clamped with the second clamping plate 10, and the second clamping plate 10 is provided with a slot 16. The connecting rod 15 can rotate its own angle to enter the slot 16, which plays the effect of connecting the first clamping plate 10 and the second clamping plate 10. The slot 16 is adapted to the connecting rod 15, and a support spring 17 is fixedly connected to one side of the connecting rod 15, and one end of the support spring 17 is fixedly connected to the first clamping plate 9. Positioning blocks 23 are fixedly connected to both sides of the notch of the slot 16. The side of the positioning block 23 close to the notch is fixedly connected to a limiting block 24, and the limiting block 24 is adapted to the connecting rod 15. The limiting block 24 can limit the connecting rod 15 after the connecting rod 15 rotates into the slot 16, thereby enhancing the fixing effect.

[0033] Both ends of the lower surface of the connecting base 1 are rotatably connected to a support frame 5, and an adjustment mechanism 6 is provided at the upper end of the support frame 5. The adjustment mechanism 6 can adjust the height of the support frame 5 to adapt to the manipulator body 4. A positioning rod 18 is provided at the upper end of the support frame 5, and the support frame 5 is rotatably connected to the connecting base 1 through the positioning rod 18. A cross bar 19 is provided in the middle of the support frame 5, and a connecting ring 20 is rotatably connected to the middle of the cross bar 19. The upper end of the adjustment mechanism 6 is movably connected to the connecting base 1. The adjustment mechanism 6 includes a hydraulic telescopic rod 21, and the upper end of the hydraulic telescopic rod 21 is rotatably connected to a support base 22, and the support base 22 is fixedly connected to the side of the connecting base 1, and the lower end of the hydraulic telescopic rod 21 is fixedly connected to the connecting ring 20, and the hydraulic telescopic rod 21 is rotatably connected to the support frame 5 through the connecting ring 20. When the hydraulic telescopic rod 21 is extended, it can push the connecting rod 15 to rotate, so that the angle of the support frame 5 tends to be vertical, and the height of the support frame 5 is increased. When the hydraulic telescopic rod 21 is contracted, the angle of the support frame 5 tends to be horizontal, and the height of the support frame 5 is reduced.

[0034] A bracket 25 is fixedly connected to the lower surface of the drone body 2, and a connecting ear 26 is fixedly connected to the upper surface of the connecting base 1, and a connecting hole is provided on the connecting ear 26. The bracket 25 passes through the connecting hole, and the connecting base 1 is fixedly connected to the drone body 2 through the connecting ear 26. A grounding rod 27 is fixedly connected to the lower end of the support frame 5, and a slide groove 28 is provided at both ends of the grounding rod 27, and a rotating ring 29 is rotatably connected to the slide groove 28. The radius of the rotating ring 29 is smaller than the radius of the grounding rod 27, and a counterweight is fixedly connected to one end of the rotating ring 29, and an irradiation lamp 30 is fixedly connected to the outer side of the rotating ring 29. The rotating switch will make one end of the counterweight always point to the ground under the action of gravity under the action of the counterweight. The irradiation lamp 30 on the rotating switch will also always point to the bottom surface, providing instructions for the operator, so that the operator can take off and land the aircraft.

[0035] When it is necessary to use a drone for lifting operations, the steering gear 11 is first used to drive the first clamping plate 9 and the second clamping plate 10 to loosen, and then the steering gear 11 is driven in the reverse direction to rotate the first clamping plate 9 and the second clamping plate 10 in the reverse direction to close. After the first clamping plate 9 and the second clamping plate 10 are closed, the connecting groove 12 and the insert block 13 can ensure that the positions of the first clamping plate 9 and the second clamping plate 10 are relatively fixed.

[0036] After the first clamping plate 9 and the second clamping plate 10 are closed and the lifting ring of the hoisting object is clamped, the connecting rod 15 of the self-locking mechanism 14 is then rotated and the lower end of the connecting rod 15 is moved into the slot 16 of the second clamping plate 10, so that the positions of the first clamping plate 9 and the second clamping plate 10 can be fixed, achieving a connection effect, and preventing the first clamping plate 9 and the second clamping plate 10 from being separated during hoisting, causing the hoisted object to fall off. The limit card 35 fixedly connected to the slot 16 can limit the position of the rotating rod after the rotating rod is rotated into the slot 16, preventing the rotating rod from falling off from the slot 16.

[0037] If other accessories need to be installed on the drone body 2, the accessories are installed on the mounting rod 34 of the mounting ring 33, and then the connecting ring 20 is sleeved on the adjustment plate 31 to complete the installation. After the connecting ring 20 is fixed on the adjustment plate 31, upper limit clamps 35 are installed on both sides of the connecting ring 20 to fix the position of the mounting ring 33 and prevent the mounting ring 33 from being displaced or falling off.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A heavy-load power grid scene suspension device, comprising a connection base (1), characterized in that: The upper surface of the connecting base (1) is provided with a drone body (2), both sides of the connecting base (1) are provided with mounting mechanisms (3), the middle part of the lower surface of the connecting base (1) is provided with a manipulator body (4), both ends of the lower surface of the connecting base (1) are rotatably connected to a support frame (5), the upper end of the support frame (5) is provided with an adjustment mechanism (6), and the upper end of the adjustment mechanism (6) is movably connected to the connecting base (1).

2. A heavy-load power grid scene suspension device according to claim 1, characterized in that: The manipulator body (4) comprises a fixed base (8), the number of the fixed bases (8) is two, the two fixed bases (8) are rotatably connected to a first clamping plate (9) and a second clamping plate (10), one side of each of the two fixed bases (8) is provided with a steering gear (11), the output ends of the two steering gears (11) are respectively fixedly connected to the first clamping plate (9) and the second clamping plate (10), the lower ends of the first clamping plate (9) and the second clamping plate (10) are respectively provided with a connecting groove (12) and an inserting block (13), the connecting groove (12) is adapted to the inserting block (13), and a self-locking mechanism (14) is provided between the connecting groove (12) and the inserting block (13).

3. A heavy-load power grid scene suspension device according to claim 2, characterized in that: The self-locking mechanism (14) comprises a connecting rod (15), wherein the connecting rod (15) is arranged at the lower end of the first clamping plate (9) and is rotatably connected to the first clamping plate (9); one end of the connecting rod (15) away from the first clamping plate (9) is clamped with the second clamping plate (10); a clamping groove (16) is provided on the second clamping plate (10); the clamping groove (16) is adapted to the connecting rod (15); a support spring (17) is fixedly connected to one side of the connecting rod (15); one end of the support spring (17) is fixedly connected to the first clamping plate (9).

4. A heavy-load power grid scene suspension device according to claim 1, characterized in that: A positioning rod (18) is provided at the upper end of the support frame (5), and the support frame (5) is rotatably connected to the connecting base (1) via the positioning rod (18). A cross bar (19) is provided in the middle of the support frame (5), and a connecting ring (20) is rotatably connected to the middle of the cross bar (19).

5. A heavy-load power grid scene suspension device according to claim 4, characterized in that: The adjustment mechanism (6) comprises a hydraulic telescopic rod (21), the upper end of the hydraulic telescopic rod (21) is rotatably connected to a support base (22), the support base (22) is fixedly connected to the side of the connection base (1), the lower end of the hydraulic telescopic rod (21) is fixedly connected to a connection ring (20), and the hydraulic telescopic rod (21) is rotatably connected to the support frame (5) via the connection ring (20).

6. A heavy-load power grid scene suspension device according to claim 3, characterized in that: Both sides of the slot opening of the clamping slot (16) are fixedly connected with positioning blocks (23), and one side of the positioning block (23) close to the slot opening is fixedly connected with a limiting block (24), and the limiting block (24) is adapted to the connecting rod (15).

7. A heavy-load power grid scene suspension device according to claim 1, characterized in that: A bracket (25) is fixedly connected to the lower surface of the drone body (2), and a connecting ear (26) is fixedly connected to the upper surface of the connecting base (1). A connecting hole is formed on the connecting ear (26), and the bracket (25) passes through the connecting hole. The connecting base (1) is fixedly connected to the drone body (2) via the connecting ear (26).

8. The heavy-load power grid scene suspension device according to claim 1, characterized in that: The lower end of the support frame (5) is fixedly connected to a grounding rod (27), both ends of the grounding rod (27) are provided with sliding grooves (28), a rotating ring (29) is rotatably connected to the sliding groove (28), the radius of the rotating ring (29) is smaller than the radius of the grounding rod (27), one end of the rotating ring (29) is fixedly connected to a counterweight, and the outer side of the rotating ring (29) is fixedly connected to an irradiation lamp (30).

9. The heavy-load power grid scene suspension device according to claim 1, characterized in that: The mounting mechanism (3) comprises an adjustment plate (31), the adjustment plate (31) is fixedly connected to the side of the connection base (1), a plurality of clamping grooves (32) are provided on the adjustment plate (31), a mounting ring (33) is sleeved on the adjustment plate (31), a mounting rod (34) is fixedly connected to the lower end of the mounting ring (33), a movable groove is provided inside the mounting ring (33), and the movable groove is adapted to the size of the adjustment plate (31).

10. A heavy-load power grid scene suspension device according to claim 9, characterized in that: Limiting cards (35) are installed on the clamping grooves (32) on both sides of the adjustment plate (31), and a mounting groove is provided inside the limiting card (35), and the size of the mounting groove is matched with that of the clamping groove (32). An opening is provided at one end of the limiting card (35), and a positioning recess (36) is provided at one end of the upper and lower surfaces of the limiting card (35) close to the opening. A plug (37) is detachably connected to the limiting card (35), and a connecting protrusion (7) is provided inside the plug (37), and the connecting protrusion (7) is matched with the positioning recess (36). A reinforcing rib (38) is fixedly connected to the outer surface of the plug (37).

Citation Information

Patent Citations

  • Unmanned aerial vehicle gripper device

    CN211223884U