CN114634113B - Bridge crane lifting appliance with single-box and double-box detection function - Google Patents
Bridge crane lifting appliance with single-box and double-box detection function Download PDFInfo
- Publication number
- CN114634113B CN114634113B CN202210406884.5A CN202210406884A CN114634113B CN 114634113 B CN114634113 B CN 114634113B CN 202210406884 A CN202210406884 A CN 202210406884A CN 114634113 B CN114634113 B CN 114634113B
- Authority
- CN
- China
- Prior art keywords
- lifting
- groove
- sliding
- screw rod
- lock
- 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
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012806 monitoring device Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
- B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
- B66C17/20—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for hoisting or lowering heavy load carriers, e.g. freight containers, railway wagons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/101—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to the technical field of bridge crane slings, in particular to a bridge crane sling with single-double box detection, which comprises a crane body, wherein two parallel sliding grooves are formed in the lower end face of the crane body, the sliding grooves are arranged in parallel along the long side direction of a container, a crown block is arranged on the top wall of the sliding groove, and a range finder for measuring the distance between the container and the crane body is fixedly arranged on the lower end face of the crown block; the machine body is provided with a lifting groove with a downward opening between the two sliding grooves, the lifting groove is provided with lifting blocks for separating two containers in a vertical sliding manner, the lower end surfaces of the lifting blocks are conical surfaces, and the top wall of the lifting groove is provided with a lifting device for driving the lifting blocks to move; the invention has the beneficial effects that the crane is limited and protected by the chute arranged below the machine body, and the distance meter is driven to move when the crane moves in the chute, so that the judgment of the number of containers is realized; two containers are separated through the conical surface on the lifting block below the machine body, so that the lifting appliance is convenient to connect and move.
Description
Technical Field
The invention relates to the technical field of bridge crane lifting appliances, in particular to a bridge crane lifting appliance with single-box and double-box detection.
Background
There are large amounts of containers flowing each day in wharfs, warehouses and the like, and many containers are stacked in the field, and many empty containers are not lacking, so that the containers are carried by the bridge crane slings. Many empty containers are carried by vehicles such as stacking machines when placed in the field, have no good view in the placing process, and are easy to squeeze together. The driver's cabin of bridge crane hoist is at the high altitude, and the staff is not enough to the observation angle of container when carrying work, and when the container that the length differs put together, the staff can not judge the state quantity of container, inconvenient transport. Moreover, the central lockset on the double-box lifting appliance is generally at a fixed position, and when an empty container is placed, due to environmental factors, two containers possibly come too close to each other, and the lockset at the center cannot be connected with a lockhole at a corresponding position easily, so that the work is affected.
Disclosure of Invention
The invention aims to provide a bridge crane lifting appliance with single and double box detection, which solves the use problems that the number cannot be judged and the positioning and locking cannot be realized during double box transportation.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The bridge crane lifting appliance comprises a machine body, wherein two parallel sliding grooves are formed in the lower end face of the machine body, the sliding grooves are arranged in parallel along the long side direction of a container, a crown block is arranged on the top wall of each sliding groove, and a range finder for measuring the distance between the container and the machine body is fixedly arranged on the lower end face of each crown block; the machine body is provided with lifting grooves with downward openings between the two sliding grooves, lifting blocks for separating the two containers are arranged in the lifting grooves in an up-down sliding mode, the lower end faces of the lifting blocks are conical surfaces, and the top wall of each lifting groove is provided with a lifting device for driving the lifting blocks to move.
Compared with the prior art, the invention has the beneficial effects that: the crane is limited and protected by the sliding chute arranged below the machine body, and the distance meter is driven to move when the crane moves in the sliding chute, so that the judgment of the number of containers is realized; through the lifting block below the machine body, containers on two sides are moved and abutted, and the two containers are separated through the conical surface, so that the lifting appliance is convenient to connect and move.
Further, the lifting block is provided with a movable groove, the movable groove penetrates through the crown block in the moving direction, the bottom wall of the movable groove is provided with two pushing plates, and the pushing plates are connected with a pushing device for controlling the pushing plates to move.
Further, the bottom wall of the movable groove is slidably provided with an outer slide bar and an inner slide bar, the inner slide bar is slidably connected with the outer slide bar, the outer slide bar is fixedly connected with one side wall of the push plate, and the inner slide bar is fixedly connected with the other side wall of the push plate.
Further, the propulsion device comprises a driving screw rod which is rotatably arranged in the movable groove, the driving screw rod is horizontally arranged, the driving screw rod is rotatably connected with two side walls of the movable groove, the driving screw rod is positioned between the two pushing plates, two connecting blocks with opposite threads are connected to the driving screw rod in a threaded manner, the connecting blocks are connected with the pushing plates, and one end of the driving screw rod is connected with a motor.
Further, the rocker plates are respectively installed on two sides of the push plate in a rotating mode, connecting grooves are formed in the rocker plates, two ends of each connecting block respectively extend into the connecting grooves on two sides of the driving screw, and the connecting blocks are connected with the side walls of the connecting grooves in a rotating mode.
Further, the lifting device comprises a motor fixed on the top wall of the lifting groove, the lower end of the motor is connected with a lifting screw, and the lifting screw is rotationally connected with the lifting block.
Further, the two side walls of the machine body are respectively provided with a first lock, the first locks are connected with the machine body in a horizontal sliding mode through telescopic rods, the other two side walls of the machine body are respectively provided with a second lock, and the second locks are connected with the machine body in a vertical sliding mode through hydraulic rods.
Further, be equipped with the guide arm on the lateral wall of organism, the second tool to lock with guide arm sliding connection, the lateral wall of organism in the guide arm below is equipped with the recess, be equipped with the supervisory equipment who is used for shooing the container in the recess.
Further, the inner wall of recess rotates installs the pivot, the pivot passes through the torsional spring to be connected the recess inner wall, supervisory equipment with pivot fixed connection, the pivot in recess external fixation has the driving lever, the driving lever free end is located the second tool to lock below, the driving lever stiff end is located the guide arm below.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present invention.
Fig. 2 is a schematic view of a working chamber according to an embodiment of the present invention.
Fig. 3 is an enlarged schematic view of the structure at a in fig. 2.
Fig. 4 is a schematic cross-sectional view of a housing according to an embodiment of the invention.
Fig. 5 is a schematic side view of a lifting block according to an embodiment of the invention.
Fig. 6 is a schematic top view of a lifting block according to an embodiment of the invention.
In the figure: 11. a body; 12. a first lock; 13. a second lock; 131. a guide rod; 21. a rotating shaft; 22. a groove; 23. a monitoring device; 24. a deflector rod; 31. a lifting block; 32. a lifting motor; 321. lifting screw rods; 33. a movable groove; 34. a rocking plate; 35. a connecting block; 37. a push plate; 371. a connecting groove; 38. driving a screw; 41. a crown block; 42. a chute; 43. a range finder; 51. an inner slide bar; 52. an outer slide bar.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a bridge crane sling with single and double box detection, which comprises a crane body 11, wherein two parallel sliding grooves 42 are arranged on the lower end surface of the crane body 11, the sliding grooves 42 are arranged in parallel along the long side direction of a container, an overhead travelling crane 41 is arranged on the top wall of the sliding groove 42, the two overhead travelling cranes 41 are respectively positioned at two ends of the sliding grooves 42, when in operation, the two overhead travelling cranes 41 move in opposite directions, and a distance meter 43 for measuring the distance between the container and the crane body 11 is fixedly arranged on the lower end surface of the overhead travelling crane 41.
The machine body 11 is provided with a lifting groove with a downward opening between the two sliding grooves 42, the lifting groove is provided with lifting blocks 31 for separating two containers in a vertical sliding manner, the lower end surface of each lifting block 31 is a conical surface, and the top wall of the lifting groove is provided with a lifting device for driving the lifting blocks 31 to move.
The lifting block 31 is provided with a movable groove 33, the movable groove 33 penetrates along the moving direction of the crown block 41, the bottom wall of the movable groove 33 is provided with two push plates 37, and the push plates 37 are connected with a propelling device for controlling the push plates 37 to move.
An outer slide rod 52 and an inner slide rod 51 are slidably mounted on the bottom wall of the movable groove 33, the inner slide rod 51 is slidably connected with the outer slide rod 52, the outer slide rod 52 is fixedly connected with the side wall of one push plate 37, and the inner slide rod 51 is fixedly connected with the side wall of the other push plate 37.
The propelling device comprises a driving screw rod 38 rotatably mounted in the movable groove 33, the driving screw rod 38 is horizontally arranged, the driving screw rod 38 is rotatably connected with two side walls of the movable groove 33, the driving screw rod 38 is positioned between two pushing plates 37, two connecting blocks 35 with opposite threads are connected to the driving screw rod 38 in a threaded manner, the connecting blocks 35 are connected with the pushing plates 37, and one end of the driving screw rod 38 is connected with a motor.
The rocking plate 34 is rotatably installed on two sides of the push plate 37, a connecting groove 371 is formed in the rocking plate 34, two ends of the connecting block 35 extend into the connecting groove 371 on two sides of the driving screw 38, and the connecting block 35 is rotatably connected with the side wall of the connecting groove 371.
An electromagnet is arranged on the side wall of the push plate 37, and the electromagnet is positioned on one side of the push plate 37, which faces away from the driving screw 38.
The lifting device comprises a motor 32 fixed on the top wall of the lifting groove, the lower end of the motor 32 is connected with a lifting screw 321, and the lifting screw 321 is rotationally connected with the lifting block 31.
The two side walls of the machine body 11 are respectively provided with a first lock 12, the first locks 12 are horizontally and slidably connected with the machine body 11 through telescopic rods, the other two side walls of the machine body 11 are respectively provided with a second lock 13, and the second locks 13 are vertically and slidably connected with the machine body 11 through hydraulic rods.
The side wall of the machine body 11 is provided with a guide rod 131, the second lock 13 is in sliding connection with the guide rod 131, a groove 22 is arranged below the guide rod 131 on the side wall of the machine body 11, and a monitoring device 23 for shooting a container is arranged in the groove 22.
The inner wall of the groove 22 is rotatably provided with a rotating shaft 21, the rotating shaft 21 is connected with the inner wall of the groove 22 through a torsion spring, the monitoring equipment 23 is fixedly connected with the rotating shaft 21, the rotating shaft 21 is fixedly connected with a deflector rod 24 outside the groove 22, the free end of the deflector rod 24 is positioned below the second lock 13, and the fixed end of the deflector rod 24 is positioned below the guide rod 131.
Operating state
When the machine body 11 of the lifting tool is close to a container, the two crown blocks 41 start to work, the crown blocks 41 on two sides move in the sliding groove 42 in opposite directions, meanwhile, the crown blocks 41 drive the distance meter 43 to slide above the container, the distance meter 43 continuously records the distance between the lifting tool and the container in the moving process, when the distance between the container and the lifting tool is changed greatly, workers can judge that the distance is double containers, the larger distance is a gap between the containers, at this time, the lifting device is started, the lifting motor 32 drives the lifting screw 321 to rotate, the lifting screw 321 drives the lifting block 31 to move downwards, the lower end of the lifting block 31 moves between the two containers, and the containers on two sides are separated by extruding the conical surface of the lifting block 31 into a gap. After the lifting block 31 stretches into a gap between two containers, the propelling device works, the driving screw rod 38 starts to rotate through motor driving, the driving screw rod 38 drives the connecting blocks 35 at two ends to move, the two connecting blocks 35 are close to each other, the pushing plate 37 is far away from the driving screw rod 38 through the rocking plate 34 by the connecting blocks 35, so that containers at two sides are abutted, electromagnets on the pushing plate 37 are started to adsorb and fix the containers, meanwhile, the pushing plate 37 pushes empty containers to move, the containers at two sides are moved to corresponding positions, the containers are prevented from shaking in the locking process through electromagnet adsorption, and the second lockset 13 is convenient to position and connect.
The first lock 12 and the second lock 13 work respectively, the monitoring device shoots the state of the container, when the second lock 13 extends downwards to be connected with the container, the second lock 13 contacts the deflector rod 24, the deflector rod 24 drives the monitoring device 23 to rotate by the rotating shaft 21, and the monitoring device shoots the change of the container in the lifting process.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. Bridge crane hoist that possesses single twin-case and detects, including organism (11), its characterized in that: the lower end face of the machine body (11) is provided with two parallel sliding grooves (42), the sliding grooves (42) are arranged in parallel along the long side direction of the container, the top wall of the sliding groove (42) is provided with an overhead travelling crane (41), and the lower end face of the overhead travelling crane (41) is fixedly provided with a distance meter (43) for measuring the distance between the container and the machine body (11); a lifting groove with a downward opening is arranged between the two sliding grooves (42) of the machine body (11), lifting blocks (31) for separating two containers are arranged in the lifting groove in a vertical sliding mode, the lower end faces of the lifting blocks (31) are conical surfaces, and a lifting device for driving the lifting blocks (31) to move is arranged on the top wall of the lifting groove;
The lifting block (31) is provided with a movable groove (33), the movable groove (33) penetrates through the crown block (41) along the moving direction, the bottom wall of the movable groove (33) is provided with two pushing plates (37), and the pushing plates (37) are connected with a pushing device for controlling the pushing plates (37) to move;
The propelling device comprises a driving screw rod (38) rotatably mounted in the movable groove (33), the driving screw rod (38) is horizontally arranged, the driving screw rod (38) is rotatably connected with two side walls of the movable groove (33), the driving screw rod (38) is positioned between two pushing plates (37), two connecting blocks (35) with opposite threads are connected to the driving screw rod (38) in a threaded manner, the connecting blocks (35) are connected with the pushing plates (37), and one end of the driving screw rod (38) is connected with a motor;
Swing plates (34) are rotatably mounted on two sides of the push plate (37), connecting grooves (371) are formed in the swing plates (34), two ends of the connecting block (35) extend into the connecting grooves (371) on two sides of the driving screw (38) respectively, and the connecting block (35) is rotatably connected with the side walls of the connecting grooves (371);
The pushing device works, the driving screw rod (38) starts to rotate, the connecting blocks (35) at the two ends are driven to move, the two connecting blocks (35) are close to each other, the pushing plate (37) is far away from the driving screw rod (38) through the rocking plate (34) by the connecting blocks (35), and therefore containers at the two sides are abutted.
2. A bridge crane sling with single and double box detection according to claim 1, characterized in that: the bottom wall of the movable groove (33) is provided with an outer sliding rod (52) and an inner sliding rod (51) in a sliding manner, the inner sliding rod (51) is in sliding connection with the outer sliding rod (52), the outer sliding rod (52) is fixedly connected with one side wall of the push plate (37), and the inner sliding rod (51) is fixedly connected with the other side wall of the push plate (37).
3. A bridge crane sling with single and double box detection according to claim 1, characterized in that: the lifting device comprises a motor (32) fixed on the top wall of the lifting groove, the lower end of the motor (32) is connected with a lifting screw rod (321), and the lifting screw rod (321) is rotationally connected with the lifting block (31).
4. A bridge crane sling with single and double box detection according to claim 1, characterized in that: two short side lateral walls of organism (11) are equipped with first tool to lock (12) respectively, first tool to lock (12) pass through the telescopic link with organism (11) horizontal sliding connection, the other two lateral walls of organism (11) are equipped with second tool to lock (13) respectively, second tool to lock (13) pass through the hydraulic stem with the vertical sliding connection of organism (11).
5. The bridge crane sling with single and double box detection according to claim 4, wherein: the side wall of the machine body (11) is provided with a guide rod (131), the second lock (13) is in sliding connection with the guide rod (131), the side wall of the machine body (11) is provided with a groove (22) below the guide rod (131), and monitoring equipment (23) for shooting the container is arranged in the groove (22).
6. The bridge crane sling with single and double box detection according to claim 5, wherein: the inner wall rotation of recess (22) is installed pivot (21), pivot (21) are passed through the torsional spring and are connected recess (22) inner wall, supervisory equipment (23) with pivot (21) fixed connection, pivot (21) in recess (22) external fixation has driving lever (24), driving lever (24) free end is located second tool to lock (13) below, driving lever (24) stiff end is located guide arm (131) below, when second tool to lock (13) stretch out downwards and connect the container, second tool to lock (13) contact driving lever (24), driving lever (24) drive supervisory equipment (23) rotation angle through pivot (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210406884.5A CN114634113B (en) | 2022-04-19 | 2022-04-19 | Bridge crane lifting appliance with single-box and double-box detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210406884.5A CN114634113B (en) | 2022-04-19 | 2022-04-19 | Bridge crane lifting appliance with single-box and double-box detection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114634113A CN114634113A (en) | 2022-06-17 |
| CN114634113B true CN114634113B (en) | 2024-09-17 |
Family
ID=81951980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210406884.5A Active CN114634113B (en) | 2022-04-19 | 2022-04-19 | Bridge crane lifting appliance with single-box and double-box detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114634113B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800445A (en) * | 2014-12-31 | 2016-07-27 | 张家港凯斯机械有限公司 | Empty container dedicated single-double box lifting appliance |
| CN110446678A (en) * | 2017-02-17 | 2019-11-12 | 博落集装箱系统有限公司 | Lifting Convey container |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3219711B2 (en) * | 1997-01-16 | 2001-10-15 | 三菱重工業株式会社 | Container suspension spreader |
| KR20020083326A (en) * | 2001-04-27 | 2002-11-02 | 삼성중공업 주식회사 | Spreader of Container Crane |
| CN113511593B (en) * | 2021-08-23 | 2024-08-16 | 宁波北仑第三集装箱码头有限公司 | Lifting appliance control system of integrated bridge crane |
-
2022
- 2022-04-19 CN CN202210406884.5A patent/CN114634113B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800445A (en) * | 2014-12-31 | 2016-07-27 | 张家港凯斯机械有限公司 | Empty container dedicated single-double box lifting appliance |
| CN110446678A (en) * | 2017-02-17 | 2019-11-12 | 博落集装箱系统有限公司 | Lifting Convey container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114634113A (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207628750U (en) | Expect sample bucket sorting system | |
| CN111532644A (en) | Workshop intelligent conveying system containing wood guide device | |
| CN114634113B (en) | Bridge crane lifting appliance with single-box and double-box detection function | |
| CN111940711A (en) | Automatic pouring device for mold casting | |
| CN220945425U (en) | High-stability aerial crane manipulator | |
| EP4086129A1 (en) | Lifting frame, air transportation vehicle, and air rail container transportation method | |
| CN214653125U (en) | Special full-automatic crane of titanium alloy factory | |
| CN110304544A (en) | Rail crane is crossed with electric hang by a kind of power plant | |
| CN117049368A (en) | Hoisting auxiliary device for transporting box girder | |
| CN209668603U (en) | Container spreader | |
| CN104649025B (en) | Automatic material loading and unloading vehicle | |
| CN111747301A (en) | Single-beam bridge crane carrying manipulator | |
| CN220432298U (en) | Anti-falling device for unbinding box | |
| CN112591324A (en) | Automatic locking and unlocking device | |
| CN222556367U (en) | Container sling for detecting direction of container door | |
| CN110949986B (en) | Locking device and frame | |
| CN217102755U (en) | Electronic spring top pushes away rail clamping device | |
| CN220886752U (en) | Amplitude changing structure of tower crane | |
| CN223117978U (en) | Anti-shaking type ton bag lifting mobile equipment | |
| CN215479404U (en) | Electric hoist upper limit protection device | |
| CN221275134U (en) | Fork truck speed display device based on bluetooth communication | |
| CN216730865U (en) | Mechanical hydraulic nitrogen mixing counterweight system | |
| CN217972316U (en) | Hoisting equipment for calibrating weighing apparatus | |
| CN218968605U (en) | A segment replacement device | |
| CN119240496B (en) | Multi-hanging-point automatic alignment lifting appliance under radiation environment |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |