CN218145742U - Weighing device of cantilever type aerial work platform - Google Patents
Weighing device of cantilever type aerial work platform Download PDFInfo
- Publication number
- CN218145742U CN218145742U CN202222697841.5U CN202222697841U CN218145742U CN 218145742 U CN218145742 U CN 218145742U CN 202222697841 U CN202222697841 U CN 202222697841U CN 218145742 U CN218145742 U CN 218145742U
- Authority
- CN
- China
- Prior art keywords
- bracket
- back plate
- work platform
- plate
- bracket body
- 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
Images
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses a weighing device of an arm support type aerial work platform, which comprises a work platform, a bracket and an arm support; the bracket comprises a bracket body and a connecting back plate, wherein the bracket body and the connecting back plate are mutually perpendicular and arranged in an L shape; the end part of the arm support is provided with a connecting frame assembly, and the connecting frame assembly comprises an upper supporting plate, a lower supporting plate and a connecting part; the upper supporting plate and the lower supporting plate are simultaneously in surface contact with the connecting back plate; the sensor assembly is arranged in front of the connecting frame assembly and the bracket, the connecting back plate is provided with a mounting hole, and the sensor assembly penetrates through the mounting hole and is respectively connected with the connecting frame assembly and the bracket on two sides of the connecting back plate. Has the beneficial effects that: the utility model can balance the torque generated by the operation platform through the surface contact of the supporting plate and the connecting back plate; the sensor assembly penetrates through the mounting hole, and a weighing value is obtained through conversion of the shearing force measured by the sensor; the manufacturing cost can be reduced on the premise of ensuring the steady precision; the structure is simpler and more compact, and is safe and reliable through optimizing the bracket structure.
Description
Technical Field
The utility model relates to a weighing device, in particular to cantilever crane formula aerial working platform's weighing device belongs to engineering machine tool technical field.
Background
The cantilever type aerial work platform is a device for aerial work, has the characteristics of flexibility, convenience in movement, capability of crossing over certain obstacles, multi-point operation in one lifting position, good safety and the like, and is widely applied to installation, maintenance and climbing operation in industries such as city management work, electric power, street lamps, advertisements, communication, view finding, gardens, traffic, docks, airport ports, large-scale industrial and mining companies and the like. Because the cantilever type aerial work platform has high requirements on the safety of products for aerial work equipment, overload operation is forbidden when actual operation is required; and the centre of gravity position can shift when the cantilever crane type aerial work platform lifts the operation, because the particularity of product structure also has strict requirement to the actual loading capacity.
In order to control the actual load capacity, a weighing device can be installed on a product, and most of the weighing devices of the existing cantilever type aerial work platform are in a single-point weighing mode or a four-point weighing mode.
In the single-point weighing mode, a weighing sensor is arranged on a bracket connected with an arm-frame type operation platform, the weighing sensor is positioned between the operation platform and the bracket, and a certain point of the symmetrical center line position of the operation platform is contacted with the weighing sensor to generate an electric signal so as to achieve the purpose of weighing. In order to ensure the accuracy of the weighing mode, the center of gravity of the operation platform is required to be positioned on a central line, so that high requirements are required on the processing precision of an integral structural member, and higher cost is generated; and the loads are required to be distributed in bilateral symmetry during weighing, so that the single-point weighing mode has the problems of low weighing precision, high manufacturing cost, complex operation and the like.
The four-point weighing mode is that weighing sensors are uniformly distributed at four point positions of a bracket at the bottom of the cantilever type operation platform, and the operation platform is directly placed on the four sensors and connected through bolts. Although the mode can meet the precision requirement of weighing, the assembly dimension is only limited to a single plane, the assembly dimension is too simple, and the platform is easy to shake, so that the operation effect is influenced.
Disclosure of Invention
The purpose of the invention is as follows: the utility model aims at the problem that exists among the prior art, provide a simple structure is compact and safe and reliable's cantilever crane formula aerial working platform's weighing device.
The technical scheme is as follows: a weighing device of an arm support type aerial work platform comprises a work platform, a bracket and an arm support, wherein the work platform is connected with the arm support through the bracket; the bracket comprises a bracket body and a connecting back plate, wherein the bracket body and the connecting back plate are mutually perpendicular and arranged in an L shape; the operation platform is arranged on the upper surface of the bracket body; the end part of the arm support is provided with a connecting frame assembly, the connecting frame assembly comprises an upper supporting plate, a lower supporting plate and a connecting part, the upper supporting plate and the lower supporting plate are respectively distributed at the front end of the connecting part from top to bottom, and the tail part of the connecting part is connected with the arm support; the upper supporting plate and the lower supporting plate are simultaneously in surface contact with the connecting back plate; the sensor assembly is arranged in front of the connecting frame assembly and the bracket, the connecting back plate is provided with a mounting hole, and the sensor assembly penetrates through the mounting hole and is connected with the connecting frame assembly and the bracket on two sides of the connecting back plate respectively.
The utility model can balance the dead weight of the operation platform and the torque generated by the load of the operation platform through the contact of the upper supporting plate and the lower supporting plate of the connecting frame assembly with the connecting back plate surface; the sensor assembly penetrates through the mounting hole and is respectively connected with the connecting frame assembly and the bracket at two sides of the connecting back plate, and the self weight and the load of the operation platform are obtained by converting the shearing force measured by the sensor; the symmetry of the structural member of the operation platform and the symmetry of the load during weighing have less influence on the weighing result of the utility model, so that the manufacturing cost of the operation platform can be effectively reduced; the utility model discloses an operation platform fixed mounting is at the upper surface of bracket body, consequently can not produce rocking of operation platform, has improved operation platform's security and reliability.
Preferably, in order to further improve the weighing accuracy, the connecting back plates are distributed in the vertical direction. Because the gravity direction of the dead weight and the load of the operation platform is vertical and downward, the connecting back plate is distributed in the vertical direction and can directly and completely convert the gravity into the shearing force of the sensor, and the weighing accuracy is further improved.
Preferably, in order to further improve the weighing accuracy, the sensor assemblies are uniformly distributed at four corners of the connecting back plate and are simultaneously connected with the connecting frame assembly and the bracket. The shearing force measured by the four sensor assemblies can be respectively obtained by installing the sensor assemblies at four corners, so that an accurate weighing value is obtained, the weighing error caused by asymmetry of the operation platform or load unbalance loading can be avoided, and the weighing accuracy is further improved.
Preferably, in order to improve the safety and the reliability, an upper limiting plate and a lower limiting plate which are parallel to each other are respectively arranged above and below the mounting hole on one side of the connecting back plate close to the working platform, and the part of the sensor assembly penetrating through the mounting hole is positioned between the upper limiting plate and the lower limiting plate and sequentially penetrates through the upper limiting plate, the sensor assembly and the lower limiting plate through bolts to be fixed. The connection reliability of the sensor assembly and the connection back plate is further improved through the connection mode of combining the upper limiting plate, the lower limiting plate and the bolt, and the accuracy of shear force measurement is improved.
Preferably, in order to further improve the connection reliability, a gap adjusting pad is arranged between the upper limiting plate and the sensor assembly and between the lower limiting plate and the sensor assembly. Because processing or welding deformation can cause the sensor assembly to exist the clearance between the board and the lower limiting plate, the clearance can arouse the impact in steady heavy process, causes the sensor assembly to damage and influences the accuracy of weighing even, can further improve the reliability of connecting through set up the clearance adjustment pad between sensor assembly and last limiting plate and lower limiting plate.
Preferably, in order to further improve the strength of the bracket, an upright post is arranged between the bracket body and the connecting back plate, the lower end face of the upright post is welded with the upper surface of the bracket body into a whole, and the vertical face of one side of the upright post is welded with the inner side face of the connecting back plate into a whole; the upright posts are symmetrically arranged on the symmetrical center of the bracket. The stand plays the effect of strengthening rib and can further improve the intensity of bracket, improves the utility model discloses a reliability.
Preferably, in order to improve the actual carrying capacity of the operation platform, the upright post is of a channel steel structure, and the opening side of the channel steel is welded with the inner side face of the connecting back plate into a whole. The upright post with the channel steel structure can reduce the weight of the bracket on the premise of ensuring the strength, and can reduce the manufacturing cost.
Preferably, in order to ensure the stability and reliability of the working personnel during working on the platform, the bracket comprises a connecting cross beam, the connecting cross beam is positioned above the bracket body and welded with a connecting back plate or an upright post to form an integral structure, and the connecting cross beam is connected with a guardrail of the working platform through a U-shaped bolt. The bottom of the operation platform is fixedly connected with the upper surface of the bracket body, and meanwhile, the guardrail of the operation platform is fixedly connected with the connecting beam of the integral bracket through the U-shaped bolt, so that the stability and the reliability of the working personnel during operation on the platform are further improved.
Preferably, in order to ensure the strength of the bracket body and reduce the weight, the bracket body is a symmetrically distributed frame structure, and mounting holes connected with the bottom of the operation platform are symmetrically distributed at four corners of the bracket body. The frame structure can be formed by welding standard sectional materials such as channel steel and I-shaped steel, and the weight and the cost of the bracket body are reduced under the condition of ensuring the strength.
Preferably, in order to further improve the stability of connection, the bracket body is symmetrically arranged on the symmetrical center of the bracket in an isosceles trapezoid structure. Under the condition that bracket body self weight is the same, the trapezium structure can increase the area of contact of bracket body and operation platform bottom, can further improve the stability of connecting.
Has the advantages that: the utility model can balance the dead weight of the operation platform and the torque generated by the load through the contact of the upper supporting plate and the lower supporting plate of the connecting frame assembly and the connecting back panel surface; the sensor assembly penetrates through the mounting hole and is respectively connected with the connecting frame assembly and the bracket at two sides of the connecting back plate, and the self weight and the load of the operation platform are obtained by converting the shearing force measured by the sensor; the symmetry of the structural member of the operation platform and the symmetry of the load during weighing have little influence on the weighing result of the utility model, so the manufacturing cost of the operation platform can be effectively reduced; the utility model discloses an operation platform is fixedly installed at the upper surface of bracket body, therefore can not produce the rocking of operation platform, has improved the security and the reliability of operation platform; the utility model discloses an optimization to the bracket structure makes the structure simple more compact and safe and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention during installation;
FIG. 2 is an exploded view of the overall structure of the present invention;
fig. 3 is a schematic structural diagram of the bracket of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 and 2, a weighing device of an arm support type aerial work platform comprises a work platform 1, a bracket 2 and an arm support 3, wherein the work platform 1 is connected with the arm support 3 through the bracket 2; the bracket 2 comprises a bracket body 21 and a connecting back plate 22, wherein the bracket body 21 and the connecting back plate 22 are mutually perpendicular and arranged in an L shape; the working platform 1 is arranged on the upper surface of the bracket body 21; the end part of the arm support 3 is provided with a connecting frame assembly 4, the connecting frame assembly 4 comprises an upper supporting plate 41, a lower supporting plate 42 and a connecting part 43, the upper supporting plate 41 and the lower supporting plate 42 are respectively distributed at the front end of the connecting part 43 from top to bottom, and the tail part of the connecting part 43 is connected with the arm support 3; the upper support plate 41 and the lower support plate 42 are simultaneously in surface contact with the connecting back plate 22; sensor assembly 5 is equipped with before link assembly 4 and bracket 2, be equipped with mounting hole 221 on the connection backplate 22, sensor assembly 5 runs through mounting hole 221 and is connected in connection backplate 22 both sides with link assembly 4 and bracket 2 respectively.
The utility model can balance the dead weight of the operation platform 1 and the torque generated by the load thereof through the contact of the upper support plate 41 and the lower support plate 42 of the connecting frame assembly 4 with the connecting back panel surface 22; the sensor assembly 5 passes through the mounting hole 221 and is respectively connected with the connecting frame assembly 4 and the bracket 2 at two sides of the connecting back plate 22, and the dead weight and the load of the operation platform 1 are obtained by converting the shearing force measured by the sensor; the symmetry of the structural part of the operation platform 1 and the symmetry of the load during weighing have less influence on the weighing result of the utility model, so that the manufacturing cost of the operation platform 1 can be effectively reduced; the utility model discloses a 1 fixed mounting of operation platform is at the upper surface of bracket body 21, consequently can not produce rocking of operation platform, has improved operation platform's security and reliability.
In order to further improve the weighing accuracy, the connection back plates 22 are vertically distributed. Because the gravity direction of the dead weight and the load of the operation platform 1 is vertical and downward, the connecting back plate 22 is distributed in the vertical direction, so that the gravity can be directly and completely converted into the shearing force of the sensor, and the weighing accuracy is further improved.
In order to further improve the weighing accuracy, the sensor assemblies 5 are uniformly distributed at four corners of the connecting back plate 22, and are simultaneously connected with the connecting frame assemblies 4 and the bracket 2. The shearing force measured by the four sensor assemblies can be respectively obtained by installing the sensor assemblies 5 at the four corners, so that an accurate weighing value is obtained, the weighing error caused by the asymmetry of the operation platform 1 or the load unbalance loading can be avoided, and the weighing accuracy is further improved.
As shown in fig. 3, in order to improve safety and reliability, the connecting back plate 22 is provided with an upper limiting plate 222 and a lower limiting plate 223 which are parallel to each other up and down in the mounting hole 221 near the work platform 1, and the portion of the sensor assembly 5 passing through the mounting hole 221 is located between the upper limiting plate 222 and the lower limiting plate 223 and fixed by passing through the upper limiting plate 222, the sensor assembly 5 and the lower limiting plate 223 in sequence through bolts. The connection reliability of the sensor assembly 5 and the connection back plate 22 is further improved through the connection mode of combining the upper limiting plate 222 and the lower limiting plate 223 with the bolts, and the accuracy of shear force measurement is improved.
In order to further improve the connection reliability, gap adjustment pads are disposed between the upper limiting plate 222 and the lower limiting plate 223 and the sensor assembly 5. Because processing or welding deformation can cause the sensor assembly 5 to have the clearance with last limiting plate 222 and lower limiting plate 223 between, the clearance can arouse the impact in the steady heavy process, causes sensor assembly 5 to damage and even influences the accuracy of weighing, can further improve the reliability of connecting through set up the clearance adjustment pad between sensor assembly 5 and last limiting plate 222 and lower limiting plate 223.
In order to further improve the strength of the bracket 2, an upright column 23 is arranged between the bracket body 21 and the connecting back plate 22, the lower end face of the upright column 23 is welded with the upper surface of the bracket body 21 into a whole, and the vertical face of one side of the upright column 23 is welded with the inner side face of the connecting back plate 22 into a whole; the upright posts 23 are symmetrically arranged on the symmetrical center of the bracket 2. The effect that stand 23 played the strengthening rib can further improve bracket 2's intensity, improves the utility model discloses a reliability.
In order to improve the actual load capacity of the work platform, the upright 23 is of a channel steel structure, and the opening side of the channel steel is welded with the inner side surface of the connecting back plate 22 into a whole. The upright column 23 of the channel steel structure can reduce the weight of the bracket 2 on the premise of ensuring the strength, and the manufacturing cost can be reduced.
As shown in fig. 2 and 3, in order to ensure the stability and reliability of the worker working on the platform, the bracket 2 includes a connecting beam 24, the connecting beam 24 is located above the bracket body 21 and welded with the connecting back plate 22 or the upright 23 to form an integral structure, and the connecting beam 24 is connected with the guardrail of the working platform 1 through a U-shaped bolt 25. The bottom of the operation platform 1 is fixedly connected with the upper surface of the bracket body 21, and meanwhile, the guardrail of the operation platform 1 is fixedly connected with the connecting cross beam 24 of the integral bracket 2 through the U-shaped bolt 25, so that the stability and the reliability of the working personnel during operation on the platform are further improved.
In order to ensure the strength of the bracket body 21 and reduce the weight, the bracket body 21 is a symmetrically distributed frame structure, and mounting holes connected with the bottom of the operation platform 1 are symmetrically distributed at four corners of the bracket body 21. The frame structure can be formed by welding standard sectional materials such as channel steel and I-shaped steel, and the weight and the cost of the bracket body 21 are reduced under the condition of ensuring the strength.
In order to further improve the stability of connection, the bracket body 21 is of an isosceles trapezoid structure and is symmetrically arranged on the symmetrical center of the bracket 2. Under the condition that the weight of the bracket body 21 is the same, the trapezoidal structure can increase the contact area between the bracket body 21 and the bottom of the operation platform 1, and the connection stability can be further improved
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A weighing device of an arm support type aerial work platform comprises a work platform (1), a bracket (2) and an arm support (3), wherein the work platform (1) is connected with the arm support (3) through the bracket (2); the bracket (2) comprises a bracket body (21) and a connecting back plate (22), wherein the bracket body (21) and the connecting back plate (22) are mutually perpendicular and arranged in an L shape; the working platform (1) is arranged on the upper surface of the bracket body (21); the method is characterized in that: the end part of the arm support (3) is provided with a connecting frame assembly (4), the connecting frame assembly (4) comprises an upper supporting plate (41), a lower supporting plate (42) and a connecting part (43), the upper supporting plate (41) and the lower supporting plate (42) are respectively distributed at the front end of the connecting part (43) up and down, and the tail part of the connecting part (43) is connected with the arm support (3); the upper support plate (41) and the lower support plate (42) are simultaneously in surface contact with the connecting back plate (22); sensor assembly (5) are equipped with before link assembly (4) and bracket (2), be equipped with mounting hole (221) on connecting backplate (22), sensor assembly (5) run through mounting hole (221) and are connected in connecting backplate (22) both sides with link assembly (4) and bracket (2) respectively.
2. The weighing apparatus of the boom-type aerial work platform of claim 1, wherein: the connecting back plates (22) are distributed in the vertical direction.
3. The weighing apparatus of an armlet-type aerial work platform according to claim 1 or 2, wherein: the sensor assemblies (5) are uniformly distributed at four corners of the connecting back plate (22) and are simultaneously connected with the connecting frame assembly (4) and the bracket (2).
4. The boom aerial work platform weighing apparatus of claim 1, wherein: the upper limiting plate (222) and the lower limiting plate (223) which are parallel to each other are respectively arranged above and below the mounting hole (221) on one side of the connecting back plate (22) close to the operation platform (1), and the part of the sensor assembly (5) penetrating through the mounting hole (221) is located between the upper limiting plate (222) and the lower limiting plate (223) and sequentially penetrates through the upper limiting plate (222), the sensor assembly (5) and the lower limiting plate (223) through bolts to be fixed.
5. The boom aerial work platform weighing apparatus of claim 4, wherein: and a gap adjusting pad is arranged between the upper limiting plate (222), the lower limiting plate (223) and the sensor assembly (5).
6. The boom aerial work platform weighing apparatus of claim 1, wherein: an upright post (23) is arranged between the bracket body (21) and the connecting back plate (22), the lower end face of the upright post (23) is welded with the upper surface of the bracket body (21) into a whole, and the vertical face of one side of the upright post (23) is welded with the inner side face of the connecting back plate (22) into a whole; the upright posts (23) are symmetrically arranged on the symmetrical center of the bracket (2).
7. The weighing apparatus of the boom-type aerial work platform of claim 6, wherein: the upright post (23) is of a channel steel structure, and the opening side of the channel steel is welded with the inner side face of the connecting back plate (22) into a whole.
8. The boom aerial work platform weighing apparatus of claim 6, wherein: the bracket (2) comprises a connecting cross beam (24), the connecting cross beam (24) is located above the bracket body (21) and welded with a connecting back plate (22) or an upright post (23) to form an integral structure, and the connecting cross beam (24) is connected with a guardrail of the operation platform (1) through a U-shaped bolt (25).
9. The weighing apparatus of the boom-type aerial work platform of claim 1, wherein: the bracket body (21) is of a frame structure which is symmetrically distributed, and mounting holes connected with the bottom of the operation platform (1) are symmetrically distributed at four corners of the bracket body (21).
10. The weighing apparatus of the boom aerial platform of claim 9, wherein: the bracket body (21) is of an isosceles trapezoid structure and symmetrically arranged on the symmetrical center of the bracket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222697841.5U CN218145742U (en) | 2022-10-13 | 2022-10-13 | Weighing device of cantilever type aerial work platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222697841.5U CN218145742U (en) | 2022-10-13 | 2022-10-13 | Weighing device of cantilever type aerial work platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218145742U true CN218145742U (en) | 2022-12-27 |
Family
ID=84567429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222697841.5U Active CN218145742U (en) | 2022-10-13 | 2022-10-13 | Weighing device of cantilever type aerial work platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218145742U (en) |
-
2022
- 2022-10-13 CN CN202222697841.5U patent/CN218145742U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201151599Y (en) | Elevator car frame | |
| CN109335949B (en) | Balance arm lifting appliance and method for lifting steel beam member by using balance arm lifting appliance | |
| CN218145742U (en) | Weighing device of cantilever type aerial work platform | |
| CN115557441A (en) | Weighing device of cantilever type aerial work platform | |
| CN205500579U (en) | Moving die carrier for lock | |
| CN210702528U (en) | Temporary fixing device for ladle turret revolving arm of large slab caster | |
| CN212082851U (en) | Vertical static load test structure of bridge floor crane | |
| CN209797272U (en) | Simply supported box girder lifting appliance | |
| CN111731985A (en) | Nuclear power station shielding wall SC structure module hoisting method | |
| CN113071984A (en) | Hoisting device and hoisting method | |
| CN112573341A (en) | Column top hoisting mechanism and construction method thereof | |
| CN210976520U (en) | Outer wind-resistant column installation subsection point operation platform | |
| CN204823925U (en) | Balance arm for hoist | |
| CN220950971U (en) | Support structure of internal climbing type tower crane | |
| CN212503648U (en) | Hoisting device for side mounting of unit module | |
| CN205932837U (en) | Elevator machine room structure | |
| CN217627102U (en) | Large-scale steel box girder hoisting sling | |
| CN211920726U (en) | Bottom fixing frame for tower crane | |
| CN211946018U (en) | Tower crane balance arm structure with stable steel frame structure | |
| CN202864738U (en) | Framework structure for bridge-type and door-type combined crane | |
| CN212127319U (en) | Multipurpose GIS equipment maintenance suspension device | |
| CN217193533U (en) | Steel case roof beam welding appurtenance | |
| CN219156363U (en) | Cantilever hanging frame of welding machine | |
| CN211733634U (en) | Combined roof hoisting weight frame and connecting mechanism comprising same | |
| CN219771603U (en) | Tower machine platform guardrail connecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |