Multi-functional mechanical hand for rescue and repair

Abstract

The present disclosure relates to the technical field of mechanical hands, and one embodiment of the present disclosure provides a multifunctional mechanical hand for rescue and maintenance, which comprises a mechanical arm, the mechanical arm is arranged on a vehicle body; a mounting rack is arranged at the end of the mechanical arm; a grabbing assembly is arranged on the mounting rack, the grabbing assembly is used for grabbing and moving objects; a supporting assembly is arranged on the mounting rack, the supporting assembly is located around the grabbing assembly, and the supporting assembly is used for supporting other objects around the object to be grabbed and moved. Through the above technical solution, the technical problem that the mechanical hand in the related art is prone to causing collapse when grabbing and moving objects, thereby affecting rescue efficiency and rescue safety is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of manipulator, in particular, to a multifunctional manipulator for rescue and maintenance. BACKGROUND

[0002] In modern society, various accidents and facility damage situations occur from time to time, and rescue and maintenance work faces great challenges. Whether it is building collapse, infrastructure damage caused by natural disasters such as earthquakes and floods, or equipment failure in industrial accidents, vehicle damage in traffic accidents, etc., efficient and reliable rescue and maintenance equipment is needed to assist in completing the task.

[0003] In the existing rescue and maintenance scene, the traditional manipulator equipment has many limitations. On the one hand, most manipulators have relatively single functions and can only achieve simple grabbing and carrying operations, which are difficult to meet the complex and variable rescue and maintenance needs. For example, in the rescue scene of a collapsed building, not only the trapped personnel and objects need to be grabbed, but also the surrounding obstacles may need to be cleaned up, and the building structure may need to be temporarily supported and reinforced, etc., and the traditional manipulator cannot complete these diversified tasks.

[0004] On the other hand, the existing manipulator performs poorly in adaptability and flexibility. In a narrow space such as a gap between ruins, inside an accident vehicle, or in a high work environment, the traditional manipulator is difficult to flexibly adjust its own position to reach areas that the operator cannot reach, which hinders the smooth development of rescue and maintenance work. Moreover, the traditional manipulator has limited grabbing capacity for objects of different shapes and sizes, and cannot stably grab various objects, which affects the efficiency and effectiveness of rescue and maintenance.

[0005] In addition, when grabbing and moving objects, the stability of surrounding objects is often difficult to guarantee, and the collapse of surrounding objects during operation often occurs, posing a safety threat to rescue personnel and equipment and increasing the risk of rescue work.

[0006] In summary, the existing manipulator for rescue and maintenance has obvious shortcomings in functional diversity, adaptability, flexibility, and safety, and there is an urgent need for a new multifunctional manipulator to solve these problems to meet the increasingly complex needs of rescue and maintenance work. SUMMARY

[0007] To overcome the above-mentioned defects, embodiments of the present disclosure provide a multifunctional manipulator for rescue and maintenance, which solves the technical problem that the manipulator in the related art easily causes collapse when grabbing and moving objects, affecting rescue efficiency and rescue safety.

[0008] According to one aspect, at least one embodiment of the present disclosure provides a multifunctional manipulator for rescue and maintenance, which is arranged on a vehicle body and includes:

[0009] a mechanical arm arranged on the vehicle body;

[0010] a mounting frame arranged at an end of the mechanical arm;

[0011] a grabbing assembly arranged on the mounting frame, the grabbing assembly being configured to grab an object;

[0012] a supporting assembly arranged on the mounting frame, the supporting assembly being arranged around the grabbing assembly, the supporting assembly being configured to support other objects around the object to be grabbed.

[0013] For example, the multifunctional mechanical hand for rescue and maintenance provided by at least one embodiment of the present disclosure comprises:

[0014] a telescopic member arranged on the mounting frame;

[0015] a gripper arranged on the telescopic member, the gripper being configured to grab an object.

[0016] For example, the multifunctional mechanical hand for rescue and maintenance provided by at least one embodiment of the present disclosure comprises:

[0017] a clamping arm hingedly arranged on the telescopic member, the clamping arm having at least two oppositely arranged clamping arms, the at least two clamping arms being configured to move towards or away from each other after swinging, the clamping arm being configured to clamp or unclamp an object.

[0018] For example, the multifunctional mechanical hand for rescue and maintenance provided by at least one embodiment of the present disclosure further comprises:

[0019] a slotting assembly movably arranged on the clamping arm, the slotting assembly being configured to slot an object.

[0020] For example, the multifunctional mechanical hand for rescue and maintenance provided by at least one embodiment of the present disclosure comprises:

[0021] a supporting rod hingedly / movably arranged on the mounting frame, the supporting rod having a supporting section, the supporting rod having a plurality of supporting rods, the plurality of supporting rods being arranged around the grabbing assembly, the plurality of supporting rods being configured to move towards or away from each other after swinging / moving.

[0022] For example, the multifunctional mechanical hand for rescue and maintenance provided by at least one embodiment of the present disclosure,

[0023] one end of the supporting rod has a pressing surface, the pressing surface being configured to press an object to be grabbed, the pressing surface having an anti-skid protrusion.

[0024] For example, the multifunctional mechanical hand for rescue and maintenance provided by at least one embodiment of the present disclosure,

[0025] The support rods are provided with at least three;

[0026] The support assembly further comprises:

[0027] The stoppers are arranged between the adjacent support rods, and the stoppers are used for stopping objects from falling through the gaps between the adjacent support rods.

[0028] For example, the multifunctional mechanical arm for rescue and maintenance provided by at least one embodiment of the present disclosure,

[0029] The stoppers are telescopic rods, and the two ends of the telescopic rods are respectively hinged to the adjacent support rods.

[0030] For example, the multifunctional mechanical arm for rescue and maintenance provided by at least one embodiment of the present disclosure,

[0031] The stoppers are net bodies, and the net bodies are arranged between the adjacent support rods.

[0032] For example, the multifunctional mechanical arm for rescue and maintenance provided by at least one embodiment of the present disclosure,

[0033] One side of the net body is fixedly arranged on one of the support rods, and the other side is movably arranged on the adjacent support rod, and the net body is shortened or lengthened when the adjacent two support rods are close to or away from each other.

[0034] The embodiment of the present disclosure has the following beneficial effects:

[0035] In the present disclosure, the overall structural design of the multifunctional mechanical arm lays a foundation for stable installation on the vehicle body by organically combining the mechanical arm, the mounting frame, the grabbing assembly and the support assembly. The design of the mechanical arm (existing multi-degree-of-freedom mechanical arm) can rotate and stretch in multiple angles in the horizontal and vertical directions, and can flexibly adjust its own position to reach the area difficult to reach by the operator in a complex rescue and maintenance site, such as a narrow ruin space, the periphery of an accident vehicle, etc. The presence of the grabbing assembly enables it to accurately grab and move various objects, whether small parts or larger rescue equipment, and it can easily cope with them. The support assembly surrounds the grabbing assembly, and can support the surrounding objects when the objects are grabbed and moved. For example, in the rescue of a collapsed building, the surrounding walls, sundries, etc. can be prevented from collapsing due to the vibration of the grabbing action when the trapped personnel or important objects are grabbed, greatly improving the safety and stability of the rescue operation and ensuring the orderly progress of the rescue work. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description only represent some of the example embodiments of the present disclosure. For those skilled in the art, other drawings can also be obtained according to the contents of the example embodiments of the present disclosure and these drawings without any creative effort.

[0037] Figure 1 Schematic view of the three-dimensional structure of the present disclosure Figure 1

[0038] Figure 2 Schematic view of the three-dimensional structure of the present disclosure Figure 2

[0039] Figure 3 Schematic view of the three-dimensional structure of the present disclosure Figure 2

[0040] Figure 4 Schematic view of the cross-section structure of the present disclosure when the blocking piece is a net body

[0041] In the figure: 1-vehicle body, 2-mechanical arm, 3-mounting frame, 4-grasping assembly, 41- telescopic part, 42-grasping hand, 43-clamping arm, 44-slotting assembly, 5- supporting assembly, 51-supporting rod, 52-supporting section, 53-pressing surface, 54-anti-slip protrusion, 55-blocking piece, 56-reel, 57-net body, 58-opening. DETAILED DESCRIPTION

[0042] The present disclosure will be further described in detail below in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0043] In order to make the drawing simple and clear, only the parts related to the disclosure are schematically represented in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is schematically represented, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0044] ​​​In this document, unless otherwise indicated and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0045] In the present disclosure, unless otherwise specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0046] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0047] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0048] As Figures 1-4 As shown in the figure, it shows a multifunctional manipulator for rescue and maintenance in an embodiment of the present disclosure, which is used to be arranged on a vehicle body 1, comprising: a mechanical arm 2, a mounting frame 3, a grabbing assembly 4 and a supporting assembly 5, the mechanical arm 2 is arranged on the vehicle body 1; the mounting frame 3 is arranged at the end of the mechanical arm 2; the grabbing assembly 4 is arranged on the mounting frame 3, and the grabbing assembly 4 is used to grab and move objects; the supporting assembly 5 is arranged on the mounting frame 3, and the supporting assembly 5 is located around the grabbing assembly 4, and the supporting assembly 5 is used to support other objects around the object to be grabbed and moved.

[0049] The overall structural design of the multifunctional mechanical arm lays a foundation for stable installation on the vehicle body 1 by organically combining the mechanical arm 2, the mounting frame 3, the grabbing assembly 4 and the supporting assembly 5. The mechanical arm 2 (existing multi-degree of freedom) can be rotated and stretched in multiple angles in the horizontal and vertical directions, and can flexibly adjust its own position to reach areas difficult to reach for the operator in a complex rescue and maintenance site, such as a narrow ruin space, the periphery of an accident vehicle and the like. The presence of the grabbing assembly 4 enables it to accurately grab and move various objects, whether small parts or larger rescue equipment, and can easily cope with them. The supporting assembly 5 surrounds the grabbing assembly 4, and can support surrounding objects when the object is grabbed and moved. For example, in collapsed building rescue, the surrounding walls, sundries and the like can be prevented from collapsing due to the vibration of the grabbing action when the trapped personnel or important objects are grabbed, greatly improving the safety and stability of the rescue operation and ensuring that the rescue work is carried out in an orderly manner.

[0050] In some examples, the grabbing assembly 4 includes a telescopic member 41 and a grabber 42, the telescopic member 41 is arranged on the mounting frame 3, and the grabber 42 is arranged on the telescopic member 41, and the grabber 42 is used to grab and move objects.

[0051] For example, as shown in Figure 2 In actual rescue and maintenance scenarios, the telescopic member 41 can be freely telescoped within a certain range according to the distance between the object and the mechanical arm to face objects in different positions. For example, when maintaining equipment at a high place, the telescopic member 41 can be elongated to make the grabber 42 reach the target position; if the object is located in a narrow gap, the telescopic member 41 can be retracted to make the grabber 42 smoothly enter and grab the object. This function of flexibly adjusting the position of the grabber 42 according to the actual situation greatly enhances the applicability of the grabbing assembly 4, and can efficiently complete the grabbing task whether in indoor narrow space or outdoor open space rescue and maintenance work.

[0052] In addition, the supporting assembly 5 can cooperate with the grabbing assembly 4, that is, the supporting assembly 5 supports the objects around the object to be grabbed (to prevent the grabbing assembly 4 from collapsing and the like during the grabbing operation), the telescopic member 41 drives the grabber 42 to realize the grabbing operation, so as to grab and move the object that needs to be moved, and realize the rapid rescue operation.

[0053] In some examples, the grabber 42 includes a clamping arm 43, the clamping arm 43 is hingedly arranged on the telescopic member 41, and at least two clamping arms 43 are arranged opposite to each other, the at least two clamping arms 43 are close to or away from each other after swinging, and the clamping arm 43 is used to clamp or unclamp the object.

[0054] For example, as shown in Figure 2As shown, the clamping arms 43 are hinged to the telescopic member 41, and at least two are oppositely arranged. This design greatly improves the gripping ability of the manipulator. When facing objects of different shapes and sizes, the clamping arms 43 can achieve the action of clamping and unclamping objects by swinging. Multiple clamping arms 43 can be adaptively adjusted according to the profile of the object, and the object can be clamped from different angles to ensure the stability of the gripping, greatly improving the gripping ability and adaptability of the manipulator to various objects, and widening the application range of the manipulator in rescue and repair fields.

[0055] In some examples, a slotting assembly 44 is further included, which is movably arranged (see Figure 3 As shown, the slotting assembly 44 can be slidably arranged on the clamping arm 43. When slotting is needed, the slider drives the slotting assembly 44 to move to the front end of the clamping arm 43 to start slotting. When slotting is not needed, the slider drives the slotting assembly 44 to be retracted away from the front end of the clamping arm 43. The slotting assembly 44 is used for slotting on the surface of the object.

[0056] For example, as Figure 3 As shown, the slotting assembly 44 is equipped, which brings more possibilities to rescue and repair work (a core feature that improves gripping adaptability and universality). In actual operation, on the one hand, when it is needed to fix or connect the object, the slotting assembly 44 can slot on the surface of the object. For example, when repairing a damaged bridge, in order to make the reinforcing material better combined with the bridge structure, the slotting assembly 44 can be used to slot a suitable groove on the surface of the bridge, and then the reinforcing material is embedded in the groove to increase the stability. This function effectively expands the application scenarios of the manipulator, so that it can not only perform simple gripping operation, but also complete some complex work of processing the surface of the object, meeting the diversified needs in rescue and repair work; on the other hand, when the object to be gripped is large or irregular in shape, and the gripper 42 is difficult to stably grip, the slotting assembly 44 can be used to slot at a suitable position on the surface of the object, so that the gripper 42 can grip the slotted part of the object, and the object can be gripped and moved. This is very convenient, greatly increases the universality of the gripping assembly 4, and the gripping is more stable, which is more conducive to rescue.

[0057] In some examples, the support assembly 5 includes a support rod 51 hingedly / movably arranged on the mounting frame 3. The support rod 51 has a support segment 52. There are a plurality of support rods 51, which are distributed around the gripping assembly 4. After the plurality of support rods 51 swing / move, the plurality of support segments 52 are close to or away from each other.

[0058] For example, as Figure 2As shown, a plurality of support rods are distributed around the gripping assembly 4, and the support rods 52 can be moved closer or farther apart by swinging or moving, which is very practical. In a rescue site, the environment around the object to be moved is often complex and variable, and the support rods 51 can be flexibly adjusted according to the actual situation of the surrounding objects to adjust the support range and strength. For example, in the rescue of the ruins after an earthquake, when the buried object needs to be grabbed, the support rods 51 can be adjusted to the appropriate position to support the surrounding ruins and debris, prevent the collapse of these objects during the grabbing process, create a safe environment for the grabbing work, ensure the smooth operation of the grabbing work, and improve the rescue efficiency.

[0059] In some examples, one end of the support rod 51 has a pressing surface 53 for pressing the object to be moved, and the pressing surface 53 has anti-slip protrusions 54.

[0060] For example, as shown in Figure 3 The pressing surface 53 at one end of the support rod 51 is specially used to press the object to be moved (which is large in size or irregular in shape and is difficult to move), and the design of the anti-slip protrusions further enhances the stability of the pressing. At the same time, the grooving assembly 44 grooves the object at an appropriate position on the surface of the object, and the grooved object is easier to be stably grabbed by the gripper 42. The pressing surface 53 cooperates with the grooving assembly 44 to quickly groove the surface of the object and facilitate the subsequent moving operation of the object, thereby greatly improving the efficiency.

[0061] In some examples, at least three support rods 51 are provided; the support assembly 5 further comprises a blocking piece 55, and a plurality of blocking pieces 55 are provided between the adjacent two support rods 51, and the blocking pieces 55 are used to block the objects that will fall through the gap between the adjacent support rods 51.

[0062] For example, as shown in Figure 2 At least three support rods 51 are provided to form a stable support structure, and a space for the operation of the gripping assembly 4 is formed between the at least three support rods 51, which can provide more reliable support for the surrounding objects. At the same time, the provision of the blocking piece 55 effectively solves the problem of the objects falling from the gap between the adjacent support rods. In a rescue and repair site, especially when dealing with some small objects or small components, the blocking piece can prevent these objects from falling around the gripping assembly 4, avoiding the influence of the falling objects on the normal progress of the rescue work, and ensuring the smooth operation of the gripping assembly 4.

[0063] In some examples, the blocking piece 55 is a telescopic rod, and the two ends of the telescopic rod are respectively hinged to the adjacent two support rods 51.

[0064] For example, as shown in Figure 2As shown, when the stop 55 is a telescopic rod with both ends hinged to adjacent support rods, it exhibits excellent self-adaptability. As the support rods swing or move, the telescopic rod automatically adjusts its length, always maintaining a suitable position to prevent objects from falling. In practical applications, when the support assembly 5 is adjusted according to different rescue scenarios, the telescopic rod stop can adapt to these changes promptly, ensuring a good blocking effect under various support conditions. For example, when the distance to the object requiring support varies, the angle and position of the support rods 51 will continuously change, and the telescopic rod stop 55 can adjust accordingly, effectively preventing objects from slipping and ensuring the smooth operation of the grabbing assembly 4 within the space enclosed by the support rods 51.

[0065] In some examples, the stop 55 is a mesh body, which is positioned between two adjacent support rods 51.

[0066] For example, such as Figure 4 As shown, using a net as a barrier between adjacent support rods offers unique advantages. The net's structure effectively prevents smaller objects from falling, and its relatively flexible nature allows it to adapt to the blocking needs of objects of different shapes. When dealing with irregularly shaped objects containing many small parts, the net can deform to a certain extent according to the object's contour, better fulfilling its blocking function. For example, if the object to be moved is surrounded by many scattered objects, the net can effectively prevent these small objects from falling through the gaps in the support rods 51 during the moving operation, ensuring the stability of the object moving process and facilitating rescue operations.

[0067] In some examples, one side of the net is fixedly mounted on one of the support rods 51, while the other side is movably mounted on an adjacent support rod 51. When two adjacent support sections 52 move closer or further apart, the net shortens or lengthens.

[0068] The design of the net, with one side fixed and the other movable, allows it to automatically shorten or lengthen as adjacent support sections move closer or further apart. In actual operation, when the support component 5 adjusts according to the surrounding environment of the object being moved, the net can adapt to these changes in real time, always maintaining an effective blocking state. For example, when moving objects in different locations, the distances between the objects that need to be supported around the object may vary. Therefore, the support range of the support component 5 will adapt accordingly, and the net can adjust its length accordingly, ensuring effective prevention of objects falling under any support condition, thus improving the net's applicability and practicality.

[0069] Reference Figure 4As shown, the reel 56 is rotatably arranged in the support rod 51, and the sidewall of the support rod 51 is provided with an opening 58, and one side of the net body 57 is movably arranged through the opening and wound on the reel. By controlling the rotation of the reel (the net body is wound on the reel), the length of the net body between the adjacent two support rods 51 can be controlled, so as to adapt to the change of the distance between the adjacent support rods 51.

[0070] In some examples, the grooving assembly 44 is a drill or a cutter.

[0071] The grooving assembly 44 can be selected as a drill or a cutter, which greatly improves the practicability and pertinence of the grooving assembly. In rescue and repair work, different work scenes and object materials require different grooving methods. For hard metal materials, a cutter can be selected for slotting; and for brittle materials such as concrete, a drill can be used for grooving operation. This function of flexibly selecting a grooving method according to actual needs enables the manipulator to meet the grooving requirements in various complex work scenes, and improves the comprehensive application ability of the manipulator in the field of rescue and repair.

[0072] In some examples, the telescopic part 41 is a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0073] The telescopic part 41 adopts a pneumatic cylinder, an oil cylinder or an electric cylinder, all of which can drive the gripper 42 to extend and retract to move objects.

[0074] The use method of the manipulator in another embodiment of the present disclosure,

[0075] When the support assembly 5 plays a supporting role, the following steps are included:

[0076] S1: The vehicle body 1 and the manipulator 2 move to the vicinity of an object to be moved;

[0077] S2: The support assembly 5 moves around the object to be moved and supports, and the grabbing assembly 4 moves the object.

[0078] When a key object is moved, other objects around the object may affect the movement of the object, or the objects around the object are prone to collapse. The support assembly 5 is used to support the objects around the object, which not only reduces the operation difficulty of moving the corresponding object, but also improves the safety of the operation.

[0079] When the support assembly 5 plays a pressing role, the following steps are included:

[0080] A1: The vehicle body 1 and the manipulator 2 move to the vicinity of an object to be moved;

[0081] A2: The pressing surface 53 of the support assembly 5 presses the object to be moved, and the grooving assembly 44 grooves the surface of the object;

[0082] A3: The object is grabbed by the notch on the object grabbed by the gripper 42.

[0083] When facing objects with large volume or not easy to grab, the notch assembly 44 is used to notch the surface of the object, so as to facilitate the gripper 42 to grab the object. Not only can the object not easy to grab be grabbed, but also the stability of grabbing can be improved, and the possibility of secondary injury can be reduced.

[0084] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limited. Although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, which should be covered in the scope of the claims of the present disclosure.

Claims

1. A multifunctional robot for rescue and repair, for installation on a vehicle body (1), characterized in that, The utility model relates to a kind of multifunctional mechanical hands for rescue and maintenance, including: Mechanical arm (2) for being arranged on the vehicle body (1); Mounting bracket (3) is arranged at the end of the mechanical arm (2); Grabbing component (4) is arranged on the mounting bracket (3); Support component (5) is arranged on the mounting bracket (3), and the support component (5) is located around the grabbing component (4); The grabbing component (4) includes: Telescopic piece (41) is arranged on the mounting bracket (3); Gripper (42) is arranged on the telescopic piece (41), and the gripper (42) is used to grab object; The gripper (42) includes: Clamping arm (43) is hingedly arranged on the telescopic piece (41), and the clamping arm (43) is at least oppositely provided with two, at least two clamping arms (43) are close to each other or away from each other after swinging, and the clamping arm (43) is used to clamp or cancel clamping object; Grooving component (44) is movably arranged on the clamping arm (43), and the grooving component (44) is used to groove on the surface of object; The support component (5) includes: Supporting rod (51) is hingedly / movably arranged on the mounting bracket (3), and the supporting rod (51) is close to each other or away from each other after swinging / moving; One end of the supporting rod (51) has pressing surface (53), and the pressing surface (53) has anti-skid convex (54); Stop piece (55) is arranged between adjacent two supporting rods (51), and the stop piece (55) is used to stop object to be dropped through the gap between adjacent supporting rods (51); The support component (5) plays a supporting role or pressing role, when the support component (5) plays a supporting role, the support component (5) is moved to the object around which needs to be grabbed, and supports other objects around, and the grabbing component (4) grabs the object which needs to be grabbed; When the support component (5) plays a pressing role, the pressing surface (53) of the support component (5) presses the object which needs to be grabbed, the grooving component (44) grooves on the surface of the object which needs to be grabbed, and the gripper (42) grabs the groove of the object which needs to be grabbed and moves the object.

2. The multifunctional mechanical hand for rescue and maintenance according to claim 1, wherein the stop piece (55) is a telescopic rod, and the two ends of the telescopic rod are hingedly connected to the adjacent two supporting rods (51).

3. The multifunctional mechanical hand for rescue and maintenance according to claim 1, wherein the stop piece (55) is a net body, and the net body is arranged between the adjacent two supporting rods (51).

4. The multifunctional mechanical hand for rescue and maintenance according to claim 3, wherein one side of the net body is fixedly arranged on one of the supporting rods (51), and the other side is movably arranged on the adjacent other supporting rod (51), and the net body is shortened or lengthened when the adjacent two supporting rods (51) are close to or away from each other. ​ ​ ​

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