CN112320631A - Small-size 5G signal tower crane fortune device - Google Patents

Small-size 5G signal tower crane fortune device Download PDF

Info

Publication number
CN112320631A
CN112320631A CN202011212506.0A CN202011212506A CN112320631A CN 112320631 A CN112320631 A CN 112320631A CN 202011212506 A CN202011212506 A CN 202011212506A CN 112320631 A CN112320631 A CN 112320631A
Authority
CN
China
Prior art keywords
overturning
gearbox
vehicle body
small
signal tower
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.)
Withdrawn
Application number
CN202011212506.0A
Other languages
Chinese (zh)
Inventor
祁怀金
孙雪平
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN202011212506.0A priority Critical patent/CN112320631A/en
Publication of CN112320631A publication Critical patent/CN112320631A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The invention discloses a small-sized 5G signal tower crane conveying device which comprises a vehicle body and an overturning part movably arranged on the vehicle body, wherein a power device is arranged on the vehicle body, the overturning part is connected with the power device through a driving mechanism, and the power device drives the overturning part to slide along the vehicle body firstly and then overturn and erect through the driving mechanism; when the power device works, the moving assembly is driven to act through the speed changing structure, the moving assembly drives the overturning part to horizontally move along the vehicle body, and then the overturning part is driven to overturn from the horizontal position to the vertical state through the swinging structure, so that the hook and the small signal tower hung at the hook are erected; the telescopic piece is driven to slide out along the overturning piece through the winding assembly in the overturning process of the overturning piece, the lifting height is further improved, the lifting height is increased, and the telescopic piece slides into the overturning piece and is locked by the fastening structure after the overturning piece is overturned and leveled.

Description

Small-size 5G signal tower crane fortune device
Technical Field
The invention relates to mechanical hoisting equipment, in particular to a small-sized 5G signal tower crane transporting device.
Background
Currently, 5G application becomes one of the key measures for promoting the digital transformation of the traditional industry, promoting the rapid development of the industrial Internet and promoting the overall realization of high-quality leap of industrial economy.
The 5G coverage urban central area needs one 5G base station of 200-300 meters approximately, the suburban area needs 1 5G base station of 500 meters-1 kilometer approximately, the base station is mainly installed on a signal tower, and the long-distance propagation of signals is facilitated by using a high-rise signal tower. The signal transmission efficiency is improved.
The existing 5G signal tower is large and small, wherein the small signal tower is mostly hoisted and erected through a crane, the common crane is mostly hoisted through a swinging boom, the elevation of the common crane is very limited, and therefore the common crane is not suitable for the high-rise signal tower.
Disclosure of Invention
Based on the defects in the prior art mentioned in the background art, the invention provides a small-sized 5G signal tower crane transportation device.
The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
a small-sized 5G signal tower crane conveying device comprises a vehicle body and an overturning part movably mounted on the vehicle body, wherein a power device is mounted on the vehicle body, the overturning part is connected with the power device through a driving mechanism, and the power device drives the overturning part to slide along the vehicle body firstly and then overturn and erect through the driving mechanism;
the driving mechanism comprises a moving assembly which is arranged on the vehicle body and connected with the power device and a swinging structure which is arranged between the vehicle body and the turnover part; a speed change structure is further arranged between the moving assembly and the power device, the moving assembly drives the turnover piece to slide, and the swinging structure drives the turnover piece to turn over and erect;
upset piece with still be provided with the winding subassembly between the automobile body, the slip cap is equipped with the extensible member on the upset piece, the extensible member is connected the winding subassembly upset piece tail end is provided with and is used for right the fastening structure of extensible member locking the couple is installed to the tip of extensible member.
As a further scheme of the invention: the speed change structure comprises a gearbox fixed on the vehicle body, an output shaft connected with the power device and a speed change gear set used for connecting the output shaft and the moving assembly;
the output shaft penetrates through one side of the gearbox and is connected with the gearbox through a bearing, and the speed change gear set comprises a large gear fixed on the output shaft and a small gear which is rotatably arranged in the gearbox and is meshed with the large gear.
As a still further scheme of the invention: the moving assembly comprises a lead screw which is rotatably arranged on the vehicle body and is parallel to the vehicle body and a threaded sleeve which is hinged with one side of the overturning part close to the gearbox;
the threaded sleeve is in threaded connection with the lead screw, one side of the lead screw, which is close to the gearbox, penetrates through the side wall of the gearbox and is connected with the side wall of the gearbox through a bearing, and the pinion and one end of the lead screw, which penetrates through the gearbox, are coaxially fixed.
As a still further scheme of the invention: the swing structure comprises a sliding groove formed in the side wall of the turnover part and a sliding rod fixed on the side, far away from the gearbox, of the vehicle body, and the sliding rod is embedded with the sliding groove in a sliding mode.
As a still further scheme of the invention: the winding assembly comprises a winch rotatably arranged on one side, close to a gearbox, of the overturning part, a traction structure used for connecting the telescopic part and the overturning part, and a transmission structure used for connecting the moving assembly and the winch;
the turnover part is provided with a through groove, one side of the telescopic part, which is close to the gearbox, is provided with a protruding part, the protruding part is embedded on the through groove in a sliding manner, and the traction structure is connected with the protruding part.
As a still further scheme of the invention: the transmission structure comprises a winding gear, a spur rack and a transmission part, wherein the winding gear is rotatably arranged on the overturning part, the spur rack is fixed on the vehicle body and meshed with the winding gear, and the transmission part is used for connecting the winding gear with the winch.
As a still further scheme of the invention: the traction structure comprises a traction steel wire and a pulley, wherein one end of the traction steel wire is fixedly wound on the winch, the other end of the traction steel wire is fastened on the protruding part, and the pulley is rotatably installed on one side, far away from the gearbox, of the turnover part;
the traction steel wire rounds the pulley to be connected with the protruding part and is in rolling contact with the pulley.
As a still further scheme of the invention: the fastening structure comprises a sleeving part fixed on one side of the overturning part far away from the gearbox, a locking part penetrating through the lower part of the sleeving part and in sliding sleeving with the sleeving part, and a pressure spring used for elastically connecting the locking part and the sleeving part;
and a lock hole used for being matched with the locking piece is formed in one side, far away from the gearbox, of the telescopic piece, and the pressure spring keeps a pressed state.
After adopting the structure, compared with the prior art, the invention has the following advantages: when the power device works, the moving assembly is driven to act through the speed changing structure, the moving assembly drives the overturning part to horizontally move along the vehicle body, and then the overturning part is driven to overturn from the horizontal position to the vertical state through the swinging structure, so that the hook and the small signal tower hung at the hook are erected; the telescopic piece is driven to slide out along the overturning piece through the winding assembly in the overturning process of the overturning piece, the lifting height is further improved, the lifting height is increased, and the telescopic piece slides into the overturning piece and is locked by the fastening structure after the overturning piece is overturned and leveled.
Drawings
Fig. 1 is a schematic structural diagram of a small-size 5G signal tower crane device.
Fig. 2 is a structural schematic diagram of upset piece and logical groove and spout in small-size 5G signal tower crane conveyer.
Fig. 3 is a partially enlarged view of a portion a in fig. 1.
Fig. 4 is a partially enlarged view of fig. 1 at B.
In the figure: 1-a vehicle body; 2-a power plant; 3-a gearbox; 4-a bull gear; 5-pinion gear; 6-a lead screw; 7-a thread sleeve; 8-a turnover part; 9-a chute; 10-a slide bar; 11-a winding gear; 12-straight rack; 13-a transmission member; 14-a winch; 15-a traction wire; 16-a pulley; 17-a telescopic member; 18-hanging hooks; 19-a nesting component; 20-a pressure spring; 21-locking member.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 4, in the embodiment of the invention, a small-sized 5G signal tower crane transportation device comprises a vehicle body 1 and an overturning part 8 movably mounted on the vehicle body 1, wherein a power device 2 is mounted on the vehicle body 1, the overturning part 8 is connected with the power device 2 through a driving mechanism, and the power device 2 drives the overturning part 8 to slide along the vehicle body 1 and then overturn and erect through the driving mechanism; the driving mechanism comprises a moving component which is arranged on the vehicle body 1 and connected with the power device 2 and a swinging structure which is arranged between the vehicle body 1 and the turnover part 8; a speed change structure is further arranged between the moving assembly and the power device 2, the moving assembly drives the turnover piece 8 to slide, and the swinging structure drives the turnover piece 8 to turn over and erect; upset 8 with still be provided with the winding subassembly between automobile body 1, the slip cap is equipped with extensible member 17 on upset 8, extensible member 17 is connected the winding subassembly 8 tail end of upset is provided with and is used for right the fastening structure of extensible member 17 locking couple 18 is installed to extensible member 17's tip.
Specifically, the power device 2 includes, but is not limited to, a common hydraulic motor, a servo motor, a pneumatic motor, etc.;
when the power device 2 works, the moving component is driven to act through the speed change structure, the moving component drives the turnover part 8 to horizontally move along the vehicle body 1, and then the turnover part 8 is driven to turn over from the horizontal position to the vertical state through the swing structure, so that the hook 18 and a small signal tower hung at the hook 18 are erected; the telescopic piece 17 is driven to slide out along the turnover piece 8 through the winding assembly in the turnover process of the turnover piece 8, the lifting elevation is further improved, the lifting height is increased, and after the turnover piece 8 is turned over and leveled, the telescopic piece 17 slides into the turnover piece 8 and is locked by the fastening structure.
In one embodiment of the present invention, the speed change structure comprises a gearbox 3 fixed on the vehicle body 1, an output shaft connected with the power device 2, and a speed change gear set used for connecting the output shaft with the moving component;
the output shaft penetrates through one side of the gearbox 3 and is connected with the gearbox through a bearing, and the speed change gear set comprises a gearwheel 4 fixed on the output shaft and a pinion 5 which is rotatably arranged in the gearbox 3 and is meshed with the gearwheel 4;
when the power device 2 works, the output shaft is driven to rotate, the rotating output shaft drives the large gear 4 fixed with the output shaft to rotate, and the large gear 4 drives the small gear 5 to rotate quickly, so that the moving component is driven to move.
In another embodiment of the invention, the moving assembly comprises a lead screw 6 which is rotatably arranged on the vehicle body 1 and is parallel to the vehicle body 1, and a screw sleeve 7 which is hinged with one side of the turnover part 8 close to the gearbox 3;
the threaded sleeve 7 is in threaded connection with the lead screw 6, one side of the lead screw 6, which is close to the gearbox 3, penetrates through the side wall of the gearbox 3 and is connected with the side wall of the gearbox 3 through a bearing, and the pinion 5 and one end of the lead screw 6, which penetrates through the gearbox 3, are coaxially fixed;
when the pinion 5 rotates rapidly, the lead screw 6 is driven to rotate rapidly, so that the turnbuckle 7 drives the turnover part 8 to do horizontal linear motion along the axis of the lead screw 6, namely in the direction parallel to the vehicle body 1.
In another embodiment of the present invention, the swing structure includes a sliding slot 9 opened on the side wall of the turnover part 8 and a sliding rod 10 fixed on the side of the vehicle body 1 far away from the transmission case 3, and the sliding rod 10 is slidably engaged with the sliding slot 9;
when the screw rod 6 rotates, the overturning part 8 firstly makes translational motion along the axis of the screw rod 6 under the constraint of the sliding groove 9 and the sliding rod 10, and after the screw sleeve 7 moves to a position close to the sliding rod 10, the screw sleeve 10 continuously moves to drive the overturning part 8 to overturn and lift under the constraint of the sliding groove 9 and the sliding rod 10.
In a further embodiment of the invention, the winding assembly comprises a winch 14 rotatably mounted on the overturned element 8 on the side close to the gearbox 3, a traction structure for connecting the telescopic element 17 with the overturned element 8, and a transmission structure for connecting the moving assembly with the winch 14;
a through groove is formed in the overturning part 8, a protruding part is arranged on one side, close to the gearbox 3, of the telescopic part 17, the protruding part is embedded on the through groove in a sliding mode, and the traction structure is connected with the protruding part;
when the screw rod 6 drives the threaded sleeve 7 and the overturning part 8 to translate along the axis of the screw rod 6, the winch 14 is driven to rotate through the transmission structure, and the rotating winch 14 is matched with the traction structure to pull the telescopic part 17 to be pulled out from the through groove in the overturning part 8 in the swinging and lifting process of the overturning part 8.
In a further embodiment of the present invention, the transmission structure comprises a winding gear 11 rotatably disposed on the turnover member 8, a spur rack 12 fixed on the vehicle body 1 and engaged with the winding gear 11, and a transmission member 13 for connecting the winding gear 11 with the winch 14;
when the overturning part 8 translates along the axis of the lead screw 6, the winding gear 11 is matched with the spur rack 12 to enable the winding gear 11 to rotate while translating along with the overturning part 8, the driving part 13 drives the winch 14 to rotate in the rotation process of the winding gear 11, and the winch 14 drives the traction structure to drive the telescopic part 17 to slide out of the overturning part 8.
In a further embodiment of the invention, the traction structure comprises a traction wire 15 which is fixedly wound on the winch 14 at one end and is fastened on the boss at the other end, and a pulley 16 which is rotatably installed on one side of the turnover part 8 far away from the gear box 3;
the traction wire 15 is wound around the pulley 16 to be connected with the convex part and is in rolling contact with the pulley 16;
the traction wire 15 may be replaced with a conventional traction member such as a wire rope, a traction rope, or a stay cable.
When the winch 14 rotates, the traction steel wire 15 is driven to rotate around the roller pulley 16, and then the protruding part and the telescopic part 17 are pulled to slide along the through groove, so that the function of secondary hoisting is realized.
In a further embodiment of the present invention, the fastening structure comprises a sleeve member 19 fixed on a side of the flip member 8 away from the transmission case 3, a lock member 21 passing through a lower portion of the sleeve member 19 and slidably engaged therewith, and a pressing spring 20 for elastically connecting the lock member 21 and the sleeve member 19;
a locking hole matched with the locking piece 21 is formed in one side, far away from the gearbox 3, of the telescopic piece 17, and the pressure spring 20 keeps a compressed state;
in the process of flatting the upset 8 swing, the traction wire 15 is constantly paid out from the winch 14, at this moment, constantly slides in the upset 8 along the through groove under the action of gravity of the extensible member 17, and after the extensible member 17 completely slides in the upset 8, drives the retaining member 21 through the pressure spring 20 to match with the lock hole to fix the upset 8 and the extensible member 17, and prevents to be not hard up in the moving process of the vehicle body 1.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Claims (8)

1. A small-sized 5G signal tower crane conveying device comprises a vehicle body (1) and an overturning part (8) movably mounted on the vehicle body (1), and is characterized in that a power device (2) is mounted on the vehicle body (1), the overturning part (8) is connected with the power device (2) through a driving mechanism, and the power device (2) drives the overturning part (8) to slide along the vehicle body (1) firstly and then overturn and erect through the driving mechanism;
the driving mechanism comprises a moving component which is arranged on the vehicle body (1) and connected with the power device (2) and a swinging structure which is arranged between the vehicle body (1) and the turnover part (8); a speed change structure is further arranged between the moving assembly and the power device (2), the moving assembly drives the overturning member (8) to slide, and the swinging structure drives the overturning member (8) to overturn and erect;
upset piece (8) with still be provided with winding assembly between automobile body (1), the slip cap is equipped with extensible member (17) on upset piece (8), extensible member (17) are connected winding assembly upset piece (8) tail end is provided with and is used for right the fastening structure of extensible member (17) locking couple (18) are installed to the tip of extensible member (17).
2. The small-sized 5G signal tower crane device according to claim 1, wherein the speed change structure comprises a gearbox (3) fixed on the vehicle body (1), an output shaft connected with the power device (2), and a speed change gear set used for connecting the output shaft with the moving assembly;
the output shaft penetrates through one side of the gearbox (3) and is connected with the gearbox through a bearing, and the speed change gear set comprises a large gear (4) fixed on the output shaft and a small gear (5) rotatably arranged in the gearbox (3) and meshed with the large gear (4).
3. The small-sized 5G signal tower crane device according to claim 2, wherein the moving assembly comprises a lead screw (6) which is rotatably arranged on the vehicle body (1) and is parallel to the vehicle body (1) and a threaded sleeve (7) which is hinged with one side of the overturning part (8) close to the gearbox (3);
the screw sleeve (7) is in threaded connection with the lead screw (6), one side, close to the gearbox (3), of the lead screw (6) penetrates through the side wall of the gearbox (3) and is connected with the side wall of the gearbox (3) through a bearing, and the pinion (5) and one end, penetrating through the gearbox (3), of the lead screw (6) are coaxially fixed.
4. The small-sized 5G signal tower crane transporting device according to claim 2, wherein the swinging structure comprises a sliding groove (9) formed in the side wall of the turnover part (8) and a sliding rod (10) fixed on one side of the vehicle body (1) far away from the gearbox (3), and the sliding rod (10) is in sliding embedding with the sliding groove (9).
5. The small-sized 5G signal tower crane device according to claim 2, wherein the winding assembly comprises a winch (14) rotatably mounted on the overturning member (8) on the side close to the gearbox (3), a traction structure for connecting the telescopic member (17) with the overturning member (8), and a transmission structure for connecting the moving assembly with the winch (14);
a through groove which is through is formed in the overturning part (8), a protruding portion is installed on one side, close to the gearbox (3), of the telescopic part (17), the protruding portion is embedded in the through groove in a sliding mode, and the traction structure is connected with the protruding portion.
6. The small-sized 5G signal tower crane device according to claim 5, wherein the transmission structure comprises a winding gear (11) rotatably arranged on the overturning part (8), a spur rack (12) fixed on the vehicle body (1) and meshed with the winding gear (11), and a transmission part (13) used for connecting the winding gear (11) and the winch (14).
7. The small-sized 5G signal tower crane device according to claim 5, wherein the traction structure comprises a traction steel wire (15) with one end fixedly wound on the winch (14) and the other end fastened on the lug boss, and a pulley (16) rotatably mounted on one side of the turnover part (8) far away from the gearbox (3);
the traction steel wire (15) rounds the pulley (16) to be connected with the convex part and is in rolling contact with the pulley (16).
8. The small-sized 5G signal tower crane device according to any one of claims 2 to 7, wherein the fastening structure comprises a sleeving part (19) fixed on one side of the overturning part (8) far away from the gearbox (3), a locking part (21) penetrating through the lower part of the sleeving part (19) and slidably sleeved with the sleeving part, and a pressure spring (20) for elastically connecting the locking part (21) and the sleeving part (19);
one side of the telescopic piece (17) far away from the gearbox (3) is provided with a lock hole used for being matched with the locking piece (21), and the pressure spring (20) keeps a pressed state.
CN202011212506.0A 2020-11-03 2020-11-03 Small-size 5G signal tower crane fortune device Withdrawn CN112320631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011212506.0A CN112320631A (en) 2020-11-03 2020-11-03 Small-size 5G signal tower crane fortune device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011212506.0A CN112320631A (en) 2020-11-03 2020-11-03 Small-size 5G signal tower crane fortune device

Publications (1)

Publication Number Publication Date
CN112320631A true CN112320631A (en) 2021-02-05

Family

ID=74323333

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011212506.0A Withdrawn CN112320631A (en) 2020-11-03 2020-11-03 Small-size 5G signal tower crane fortune device

Country Status (1)

Country Link
CN (1) CN112320631A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115200561A (en) * 2022-08-11 2022-10-18 枣庄高新建设集团有限公司 Hydrological monitoring equipment for environmental protection engineering

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115200561A (en) * 2022-08-11 2022-10-18 枣庄高新建设集团有限公司 Hydrological monitoring equipment for environmental protection engineering
CN115200561B (en) * 2022-08-11 2024-01-30 枣庄高新建设集团有限公司 Hydrologic monitoring equipment for environmental engineering

Similar Documents

Publication Publication Date Title
CN209024087U (en) A kind of fork truck foldable hoisting arm of pressure resistance
CN201809088U (en) Hoisting device for goods transporting in car and in or out cabin thereof
CN112320631A (en) Small-size 5G signal tower crane fortune device
CN100413743C (en) Underground locomotive escape door device
CN111619460A (en) Automatic lifting frame for car roof trunk
CN2897754Y (en) Emergency gate device of locomotive for railway
CN201863904U (en) Rollover door hydraulic connecting rod mechanism
CN110626967A (en) Crane with overload locking device
CN206735059U (en) The door and container of upper and lower folding
CN208265660U (en) A kind of portable boom hoisting for building
CN204999536U (en) Built -in construction winch equipment of planetary gear train
CN201166617Y (en) Coal-carrying sampling apparatus for chain drive mechanism
CN218055004U (en) Tarpaulin folding and unfolding device for top-opening box body
CN112239161A (en) Cargo boom head of flat-top tower crane
CN106698213B (en) The assembly method of crane and crane
CN110901504A (en) Container type vehicle transfer transport vehicle
CN111619461A (en) Swing arm formula roof suitcase automatic lifting frame
CN218024993U (en) Grab bucket for wine field
CN205822972U (en) A kind of emergency unlocking device for door system
CN205906971U (en) Bridge type transport vechicle climbing mechanism and bridge type transport vechicle
CN219636760U (en) Wire rope anti-drop device for crane
CN220223292U (en) Hoisting equipment for electromechanical engineering
CN113371030B (en) Frame type rescue equipment
CN218810110U (en) Building construction hoisting device
CN208327328U (en) A kind of safety and stability type driven hanging basket

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210205