CN218559195U - Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support - Google Patents

Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support Download PDF

Info

Publication number
CN218559195U
CN218559195U CN202222700787.5U CN202222700787U CN218559195U CN 218559195 U CN218559195 U CN 218559195U CN 202222700787 U CN202222700787 U CN 202222700787U CN 218559195 U CN218559195 U CN 218559195U
Authority
CN
China
Prior art keywords
aerial vehicle
unmanned aerial
platform
multisensor
embedding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222700787.5U
Other languages
Chinese (zh)
Inventor
华开成
黄少雄
王振华
潘勇
王安怀
汪曼筠
梁冲
龚扬
温楷和
徐海龙
卢照孔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Nanyue Transportation Renbo Expressway Management Center
Guangzhou Tianqin Digital Technology Co ltd
Guangdong Huiqing Expressway Co ltd
Original Assignee
Guangdong Nanyue Transportation Renbo Expressway Management Center
Guangzhou Tianqin Digital Technology Co ltd
Guangdong Huiqing Expressway Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Nanyue Transportation Renbo Expressway Management Center, Guangzhou Tianqin Digital Technology Co ltd, Guangdong Huiqing Expressway Co ltd filed Critical Guangdong Nanyue Transportation Renbo Expressway Management Center
Priority to CN202222700787.5U priority Critical patent/CN218559195U/en
Application granted granted Critical
Publication of CN218559195U publication Critical patent/CN218559195U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/40Weight reduction

Landscapes

  • Forklifts And Lifting Vehicles (AREA)

Abstract

The utility model discloses an unmanned aerial vehicle multisensor load expansion heightening bracket capable of being flexibly disassembled and assembled, which comprises a connecting platform; the supporting frame is suitable for supporting the connecting platform; embedded connecting device sets up at connection platform, and embedded connecting device includes embedding portion and connecting portion, and embedding portion reserves the embedding mouth that supplies unmanned aerial vehicle body embedding, is equipped with the installation position on the embedding mouth, and connecting portion are mobile to be set up at connection platform to make connecting portion have the first state that passes the installation position and leave the second state of installation position, connecting portion are suitable for and fix the unmanned aerial vehicle body when the first state. Effectively expand unmanned aerial vehicle's lower part space through setting up the support frame, be used for external equipment through setting up connection platform, improve unmanned aerial vehicle external equipment's variety to thereby reliably fix unmanned aerial vehicle through the cooperation of embedding portion and connecting portion, thereby satisfy the production demand of the different scenes of highway/railway.

Description

Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support
Technical Field
The utility model relates to an unmanned aerial vehicle equipment technical field, in particular to dismantled and assembled unmanned aerial vehicle multisensor load extension increases support.
Background
According to the demands of different scenes such as highway/railway engineering progress, quality, safety, environmental protection, land and the like, the unmanned aerial vehicle usually needs to mount various task sensors, but the undercarriage of the unmanned aerial vehicle of part models is very short, and is lack of enough space to mount other large sensors, so that the use of the unmanned aerial vehicle is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a dismantled and assembled unmanned aerial vehicle multisensor load extension increases support can effectively extend unmanned aerial vehicle's lower part space, improves the variety of the external equipment of unmanned aerial vehicle, satisfies the production demand of the different scenes of highway/railway.
According to the utility model discloses dismantled and assembled unmanned aerial vehicle multisensor load extension increases support, include:
connecting a platform;
a support frame adapted to support the connection platform;
embedded connecting device sets up connection platform, embedded connecting device includes embedding part and connecting portion, the embedding part is reserved has the embedding mouth that supplies the embedding of unmanned aerial vehicle body, be equipped with the installation position on the embedding mouth, connecting portion are mobile to be set up connection platform, so that connecting portion have and pass the first state in installation position with leave the second state in installation position, connecting portion are suitable for fix the unmanned aerial vehicle body during the first state.
According to the utility model discloses a dismantled and assembled unmanned aerial vehicle multisensor load extension of first aspect embodiment increases support has following beneficial effect at least: effectively expand unmanned aerial vehicle's lower part space through setting up the support frame, be used for external equipment through setting up connection platform, improve unmanned aerial vehicle external equipment's variety to thereby reliably fix unmanned aerial vehicle through the cooperation of embedding portion and connecting portion, thereby satisfy the production demand of the different scenes of highway/railway.
According to the utility model discloses an embodiment of the first aspect dismantled and assembled unmanned aerial vehicle multisensor load extension increase support, still be equipped with fixing device on the connection platform, fixing device is used for fixing a position the unmanned aerial vehicle body.
According to the utility model discloses a first aspect embodiment dismantled and assembled unmanned aerial vehicle multisensor load extension increase support, fixing device includes the spacing portion of foreleg, the spacing portion of foreleg has the locating plane that is suitable for supporting the unmanned aerial vehicle shank to keep the unmanned aerial vehicle fuselage in predetermineeing the attitude.
According to the utility model discloses an embodiment of first aspect dismantled and assembled unmanned aerial vehicle multisensor load extension increase support, fixing device still includes the couple subassembly, the couple subassembly is articulated to be set up connection platform, the couple subassembly is suitable for and acts on through the swing the mode that unmanned aerial vehicle predetermined the position is connected.
According to the detachable unmanned aerial vehicle multi-sensor load expansion heightening bracket provided by the embodiment of the first aspect of the utility model, the front leg limiting parts are respectively arranged at two sides of the embedding part, and the positioning planes at two sides are positioned on the same horizontal plane;
and/or the insert portion is disposed opposite the hook assembly.
According to the utility model discloses an embodiment of first aspect dismantled and assembled unmanned aerial vehicle multisensor load extension increase support, embedding portion includes supporting seat and fixed plate, the supporting seat sets up connecting platform, the one end setting of fixed plate is in the supporting seat, the other end overhang of fixed plate sets up, so that the fixed plate with there is the interval between the connecting platform, the interval forms inlay the mouth.
According to the utility model discloses an embodiment of first aspect dismantled and assembled unmanned aerial vehicle multisensor load extension increase support, the installation position sets up on the fixed plate, be equipped with on the connection platform and be used for wearing to establish the hole site of connecting portion, the hole site with the installation position corresponds the setting, so that wear to locate simultaneously when connecting portion are in the first state the hole site with the installation position, leave when connecting portion are in the second state the installation position and temporary storage in the hole site.
According to the utility model discloses a first aspect embodiment dismantled and assembled unmanned aerial vehicle multisensor load extension increase support, the last reservation of connection platform has the hole that is used for the carry sensor.
According to the utility model discloses a first aspect embodiment dismantled and assembled unmanned aerial vehicle multisensor load extension increase support, the support frame includes two stabilizer blades that the interval set up, the stabilizer blade includes down tube and horizontal pole, the horizontal pole is used for supporting, the one end of down tube is connected the horizontal pole, the other end of down tube is connected connection platform.
According to the detachable unmanned aerial vehicle multi-sensor load expansion heightening bracket provided by the embodiment of the first aspect of the utility model, the supporting frame is made of carbon fiber reinforced PC material;
and/or the support frame is provided with an anti-skid structure.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic view of the connection portion of the embodiment of the present invention in a second state;
fig. 3 is the embodiment of the utility model provides a schematic diagram that connection platform and unmanned aerial vehicle are connected.
Reference numerals:
connecting platform 100, hole 110, hole site 120;
the support frame 200, the diagonal rods 210, the cross rods 220 and the anti-skid structures 230;
the embedded connecting device 300, the embedded part 310, the embedded opening 311, the supporting base 312, the fixing plate 313, the mounting position 3131, and the connecting part 320;
front leg limiting part 410, positioning plane 411 and hook component 420.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is at least two, and larger, smaller, larger, etc. are understood to exclude the present number, and above, below, inside, etc. are understood to include the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless otherwise specifically limited, terms such as set, mounted, connected and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application after combining the specific contents of the technical solutions.
Referring to fig. 1 to 3, the support is increased in the extension of dismantled and assembled unmanned aerial vehicle multisensor load of this application first aspect embodiment, is applied to unmanned aerial vehicle like the many rotor unmanned aerial vehicle of Xinjiang generation of code 430, as increasing the lower part space that the support can effectively expand unmanned aerial vehicle, improves the variety of unmanned aerial vehicle external equipment, satisfies the production demand of the different scenes of highway/railway. Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support includes connection platform 100, support frame 200 and embedded connecting device 300.
The connection platform 100 is suitable for carrying an unmanned aerial vehicle and an external hanging device, in some embodiments, mounting holes and the like may be provided on the connection platform 100 for mounting, and preferably, a hole 110 for mounting a sensor is reserved on the connection platform 100. Specifically, a hole 110 is reserved in the middle of the connecting platform 100, so that the mounting space is provided for a large sensor, and the bottom vision of the aircraft and the visual angle of the infrared sensor cannot be shielded.
Wherein support frame 200 is suitable for supporting connection platform 100, thereby support frame 200 has and predetermines the height as increasing the effective extension unmanned aerial vehicle's of support lower part space, increases the seamless butt joint of support and fuselage, can not destroy the original structure of unmanned aerial vehicle. Simultaneously, according to the height of unmanned aerial vehicle's size weight rational design hookup location and support frame 200 itself, support frame 200 is fixed with connection platform 100 junction adoption threaded connection's mode for support frame 200 can keep firm with the platform.
In some embodiments, the supporting frame 200 comprises two supporting legs spaced apart from each other, the supporting legs comprise a diagonal bar 210 and a cross bar 220, the cross bar 220 is used for supporting, one end of the diagonal bar 210 is connected to the cross bar 220, and the other end of the diagonal bar 210 is connected to the connecting platform 100. It can be understood that the inclined rods 210 are obliquely arranged, and two inclined rods 210 are arranged at the bottom of the connecting platform 100 in a splayed shape, so that the support is more stable. The stabilizer blade adopts down tube 210 and horizontal pole 220 interconnect's T type design, adopts the screw thread design with connection platform 100 junctions, and the junction is unmanned aerial vehicle focus place, guarantees that the unmanned aerial vehicle fuselage is steady, and support frame 200 length and installation angle are reasonable, avoid sheltering from third party load equipment visual angle. Preferably, the support frame 200 is made of carbon fiber reinforced PC material, and is light in weight, portable, and can be detached at any time, and the support frame 200 is provided with an anti-slip structure 230, and the anti-slip structure 230 can be a rubber anti-slip ring, an anti-slip cushion layer and the like.
The embedded connection device 300 is disposed on the connection platform 100, the embedded connection device 300 includes an embedding portion 310 and a connection portion 320, an embedding opening 311 for embedding the main body of the unmanned aerial vehicle is reserved on the embedding portion 310, an installation position 3131 is disposed on the embedding opening 311, the connection portion 320 is movably disposed on the connection platform 100, so that the connection portion 320 has a first state passing through the installation position 3131 and a second state leaving the installation position 3131, and the connection portion 320 is suitable for fixing the main body of the unmanned aerial vehicle in the first state.
It can be understood that embedding portion 310 sets up at connection platform 100, through reserving the mouth with the unmanned aerial vehicle body and docking with embedding mouth 311 to make connection platform 100 seamlessly insert the unmanned aerial vehicle body and tentatively fix, further promote the unmanned aerial vehicle body again, make connecting portion 320 can with unmanned aerial vehicle body fixed connection, operate connecting portion 320 this moment and can make connection platform 100 firmly be fixed in on the unmanned aerial vehicle.
In some embodiments, the connection portion 320 may be a screw, a protruding portion of an auxiliary rotation design is provided at a nut of the screw, the protruding portion may be held by a hand without a tool for operation, when the screw is screwed, the connection portion 320 may be switched to the first state to fix the main body of the drone, when the screw is screwed out and switched from the first state to the second state, the connection platform 100 may be unlocked, and at this time, the drone may be pushed out from the insertion opening 311.
Referring to fig. 1 to 3, the detachable unmanned aerial vehicle multisensor load expansion of this application first aspect embodiment increases the support, effectively expands unmanned aerial vehicle's lower part space through setting up support frame 200, is used for external equipment through setting up connection platform 100, improves the variety of unmanned aerial vehicle external equipment to thereby reliably fix unmanned aerial vehicle through the cooperation of embedding portion 310 and connecting portion 320, thereby satisfy the production demand of the different scenes of highway/railway.
In some embodiments of the present application, the connection platform 100 is further provided with a fixing device, and the fixing device is used for positioning the unmanned aerial vehicle body. It can be understood that embedded connecting device 300 is used for unmanned aerial vehicle and connection platform 100 fixed connection, but when specifically using, considers that environmental factor influences such as windage may make unmanned aerial vehicle can appear rocking the condition appearance such as appearing, sets up fixing device to this and further guarantees that unmanned aerial vehicle can steadily install at connection platform 100 to further guarantee normal use. Fixing device can also play the positioning action simultaneously, and unmanned aerial vehicle can utilize fixing device to fix a position earlier to can install more accurately to embedding mouth 311, and further improve the installation accuracy of connecting portion 320.
In some embodiments of the present application, the fixing device includes a front leg limiting portion 410, and further includes a hook assembly 420, and the front leg limiting portion 410 has a positioning plane 411 adapted to support the leg of the drone so as to maintain the body of the drone in a preset posture. Hook component 420 articulates and sets up connection platform 100, and hook component 420 is suitable for and acts on the mode that unmanned aerial vehicle predetermine the position through the swing and connects.
It can be understood that the front leg limiting part 410 is used for supporting the front legs of the unmanned aerial vehicle and keeping the fuselage of the unmanned aerial vehicle horizontal. In some embodiments, the front leg limiting part 410 is a strip-shaped plate member, the top surface of the plate member is set to be a horizontal plane and serves as the positioning plane 411, and the positioning plane 411 supports the front legs of the unmanned aerial vehicle, so that the whole unmanned aerial vehicle is in a horizontal state, and the measurement quality of the sensor is ensured after the external hanging device is hung. More specifically, spacing portion 410 of foreleg sets up respectively in the both sides of embedding portion 310, and the locating plane 411 of both sides is located same horizontal plane for unmanned aerial vehicle steadily places.
It can be understood that hook component 420 can cooperate with the fixing of connecting portion 320, and when unmanned aerial vehicle was embedded into the predetermined degree of depth of embedding mouth 311, hook component 420 could just catch the predetermined position of unmanned aerial vehicle, represents unmanned aerial vehicle installation this moment and takes one's place to operative connecting portion 320 carries out the screw fastening. Fixed through the cooperation of couple subassembly 420 and connecting portion 320, guarantee to increase the support and can stabilize and install on the unmanned aerial vehicle fuselage, prevent to drop safe and reliable. More specifically, embedding part 310 sets up with couple subassembly 420 is relative, and the mode that sets up through the cooperation makes the unmanned aerial vehicle atress more even, reasonable.
In some embodiments of the present application, referring to fig. 2 in particular, the insertion portion 310 includes a supporting seat 312 and a fixing plate 313, the supporting seat 312 is disposed on the connection platform 100, one end of the fixing plate 313 is disposed on the supporting seat 312, and the other end of the fixing plate 313 is disposed in an overhanging manner, so that a gap exists between the fixing plate 313 and the connection platform 100, and the gap forms the insertion opening 311. It can be understood that the supporting seat 312 is disposed on the connecting platform 100 as a mounting platform by means of a screw connection, and one end of the fixing plate 313 is reliably fixed on the supporting seat 312. And for cooperation unmanned aerial vehicle's concrete structure, thereby through the thickness control spaced opening size of control supporting seat 312, thereby construct suitable embedding mouth 311 through the setting position of control fixed plate 313, overhanging length, guarantee that unmanned aerial vehicle can reliably imbed.
Further, the mounting location 3131 is disposed on the fixing plate 313, the connecting platform 100 is provided with a hole 120 for passing the connecting portion 320, the hole 120 is disposed corresponding to the mounting location 3131, so that the connecting portion 320 passes through the hole 120 and the mounting location 3131 when in the first state, and leaves the mounting location 3131 and temporarily stores in the hole 120 when the connecting portion 320 is in the second state. It can be understood that hole site 120 can set up to the screw hole, and connecting portion 320 passes through the screw thread setting at hole site 120, and installation position 3131 sets up to the shape that can cooperate unmanned aerial vehicle to make unmanned aerial vehicle install to embedding mouth 311 back, installation position 3131 also can with unmanned aerial vehicle's fuselage connecting portion adaptation, thereby behind connecting portion 320 fixed connection unmanned aerial vehicle, unmanned aerial vehicle can set up steadily on fixed plate 313.
All possible combinations of the technical features of the embodiments described above may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application.

Claims (9)

1. The utility model provides a dismantled and assembled unmanned aerial vehicle multisensor load extension increases support, its characterized in that includes:
connecting the platform;
a support frame adapted to support the connection platform;
embedded connecting device sets up connecting platform, embedded connecting device includes embedding part and connecting portion, the embedding part is reserved has the embedding mouth that supplies unmanned aerial vehicle body embedding, be equipped with the installation position on the embedding mouth, connecting portion mobile setting is in connecting platform can pass the installation position or leave the installation position.
2. The removable drone multisensor load extension heightening bracket of claim 1, wherein: still be equipped with fixing device on the connection platform, fixing device includes the spacing portion of preceding leg, the spacing portion of preceding leg has the locating plane who is suitable for supporting the unmanned aerial vehicle shank.
3. The removable drone multisensor load expansion heightening mount of claim 2, wherein: the fixing device further comprises a hook assembly, and the hook assembly is hinged to the connecting platform in a swinging mode.
4. The removable drone multisensor load expansion heightening bracket of claim 3, wherein: the front leg limiting parts are respectively arranged at two sides of the embedding part, and the positioning planes at two sides are positioned on the same horizontal plane;
and/or the insert portion is disposed opposite the hook assembly.
5. The removable drone multisensor load expansion heightening bracket of any one of claims 1 to 4, wherein: the embedding part comprises a supporting seat and a fixing plate, the supporting seat is arranged on the connecting platform, one end of the fixing plate is arranged on the supporting seat, the other end of the fixing plate is arranged in a cantilever mode, so that a gap exists between the fixing plate and the connecting platform, and the gap is formed in the embedding opening.
6. The removable drone multisensor load expansion heightening bracket of claim 5, wherein: the installation position sets up on the fixed plate, be equipped with on the connection platform and be used for wearing to establish the hole site of connecting portion, the hole site with the installation position corresponds the setting, connecting portion can wear to locate simultaneously the hole site with the installation position or leave the installation position and temporary storage in the hole site.
7. The removable drone multisensor load extension heightening bracket of claim 1, wherein: and holes for mounting the sensors are reserved on the connecting platform.
8. The removable drone multisensor load extension heightening bracket of claim 1, wherein: the support frame includes two stabilizer blades that the interval set up, the stabilizer blade includes down tube and horizontal pole, the one end of down tube is connected the horizontal pole, the other end of down tube is connected connection platform.
9. The removable drone multisensor load expansion heightening bracket of claim 1 or 8, wherein: the support frame is made of a carbon fiber reinforced PC material;
and/or the support frame is provided with an anti-skidding structure.
CN202222700787.5U 2022-10-13 2022-10-13 Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support Active CN218559195U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222700787.5U CN218559195U (en) 2022-10-13 2022-10-13 Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222700787.5U CN218559195U (en) 2022-10-13 2022-10-13 Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support

Publications (1)

Publication Number Publication Date
CN218559195U true CN218559195U (en) 2023-03-03

Family

ID=85317136

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222700787.5U Active CN218559195U (en) 2022-10-13 2022-10-13 Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support

Country Status (1)

Country Link
CN (1) CN218559195U (en)

Similar Documents

Publication Publication Date Title
CN218559195U (en) Dismantled and assembled unmanned aerial vehicle multisensor load extension increases support
CN107152243A (en) A kind of multidirectional adjustable and portable churn support
CN206888924U (en) Multidirectional adjustable and portable churn support
EP2657413A1 (en) Device for fixing warning lamp of a construction machine
CN214658989U (en) Temporary fixing frame for mounting assembly type building wall
CN1873151B (en) Tie bar installation in use for suspended ceiling of building
CN212201267U (en) Elevator shaft operating platform
CN213952638U (en) Curtain wall adjusting and hanging device
CN209013427U (en) A kind of wind guiding component and air conditioner
CN207906213U (en) A kind of building connecting elements
JPH078424U (en) Car stop
JP3614841B2 (en) Carport
CN208168869U (en) A kind of fixation device of the mechanical arm for mining machinery
CN109572992A (en) A kind of stability is strong and the fixed wing aircraft wing that firmly installs
CN219890426U (en) Tower rod inclination displacement monitoring equipment
CN212200069U (en) Concatenation formula steel anchor roof beam
CN206644814U (en) A kind of train loading space special ladder
CN210222325U (en) Communication optical cable hook
CN205929499U (en) A print platform for 3D printer
CN219137979U (en) Building structure connecting piece
CN219060899U (en) Aluminum alloy template diagonal bracing fixing system
CN205595750U (en) Cable joint that can fix
CN215167206U (en) Basement cavity post mounting structure
CN215231720U (en) Simple safety rope suspension device for outer frame operation
CN217264414U (en) Detachable building tower crane anchor

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant