Automatic control type steel cantilever unloading platform

Abstract

The application relates to the technical field of building unloading platforms, and discloses an automatic control type steel overhanging unloading platform; the platform comprises an overhanging mounting part, a stable detection part is mounted on the overhanging mounting part, and a detection contact piece is mounted at the bottom of the overhanging mounting part; the detection contact piece is attached to the top of the stable detection part; a moving platform part is mounted on the overhanging mounting part; the detection contact piece can cooperate with the stable detection part to perform stability detection work, the vertical deformation of a fixed overhanging frame and the horizontal displacement can be detected, the horizontal swinging caused by factors such as overloading and wind force after the fixed overhanging frame bears a load can be detected, and the use safety of the fixed overhanging frame can be improved; the problems that the current steel overhanging unloading platform is inconvenient for automatically detecting the stability of the platform and cannot automatically control the recovery of the platform are solved.

Description

Technical Field

[0001] This invention relates to the field of construction unloading platform technology, specifically an automatic control steel cantilever unloading platform. Background Technology

[0002] During high-rise construction, steel cantilevered unloading platforms are required for material stacking and unloading. These platforms are crucial auxiliary equipment for tower cranes in lifting goods. Typically, one side of the platform is mounted on a floor slab, and then the platform is suspended and secured with steel wire ropes. Currently, steel cantilevered unloading platforms are often reinforced with two independent steel wire ropes on both sides. Over time, the strength of the rope connection points decreases, posing safety hazards. This makes it difficult to adjust the tension balance of the wire ropes or adjust the suspension points to improve safety. Furthermore, it hinders automatic detection of platform stability and automatic control of platform retrieval, increasing the risk of a fall from a height when the platform is overloaded and tilted. This compromises safety and makes it difficult to alert workers to platform malfunctions.

[0003] Therefore, we propose an automatically controlled steel cantilever unloading platform. Summary of the Invention

[0004] The purpose of this invention is to provide an automatically controlled steel cantilever unloading platform to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic control steel cantilever unloading platform, including a cantilever mounting part, a stability detection part mounted on the cantilever mounting part, a detection contact part mounted at the bottom of the cantilever mounting part, and the detection contact part being attached to the upper part of the stability detection part;

[0006] A mobile platform is installed on the cantilevered mounting section, and the mobile platform moves on the cantilevered mounting section.

[0007] The mobile platform is equipped with two material feeding guides, which are installed symmetrically.

[0008] A suspension connector is installed on the cantilevered mounting section, and the suspension connector is used to suspend the cantilevered mounting section.

[0009] Two guide positioning components are installed on the cantilevered mounting section, and the two guide positioning components are used in conjunction with the suspension connector.

[0010] The cantilever installation unit includes a fixed cantilever frame and main rope grooved pulleys. Two main rope grooved pulleys are rotatably installed at the bottom of the fixed cantilever frame. The fixed cantilever frame has two rows of through holes, which are used to pass bolts through to install the fixed cantilever frame on the floor slab.

[0011] Preferably, the cantilever installation part also includes auxiliary traction ropes, limiting blocks, alarm light poles, and threaded connection frames. There are two auxiliary traction ropes, one end of each of which is fixedly installed on the fixed cantilever frame, and the other end of each of which is connected to the outside of the building wall. Two limiting blocks are fixedly installed at the bottom of the fixed cantilever frame, and each of the two limiting blocks has two through holes. The two through holes are used to pass bolts through to install the limiting blocks on the outside wall of the building. A threaded connection frame is fixedly installed on the inside of the fixed cantilever frame, and the threaded connection frame has threaded holes. An alarm light pole is installed on one side of the fixed cantilever frame.

[0012] Preferably, the stability detection unit includes a detection support frame, a detection mounting cylinder, a micro switch, a lifting connecting column, and a support spring. The detection support frame has a "T"-shaped structure, and the detection support frame is fixedly installed between two limit blocks by bolts. The detection mounting cylinder is fixedly installed on the detection support frame, and the micro switch is fixedly installed inside the detection mounting cylinder. The lifting connecting column is slidably installed on the detection mounting cylinder. The top of the lifting connecting column has a concave structure, and a support spring is sleeved on the lifting connecting column. The support spring connects the lifting connecting column and the detection mounting cylinder. The micro switch is located below the lifting connecting column.

[0013] Preferably, the detection contact includes a detection mounting frame and a detection head. The detection mounting frame is fixedly installed at the bottom of the fixed cantilever frame by bolts. The detection head is fixedly installed at the bottom of the detection mounting frame. The end of the detection head has an arc-shaped structure and is attached to the top of the lifting connecting column. The detection head is used to compress the lifting connecting column.

[0014] Preferably, the mobile platform includes a mobile platform plate, rollers, a drive motor, and a drive threaded rod. The two sides of the mobile platform plate are slidably attached to the inner side of the fixed cantilever frame. Two rows of rollers are rotatably installed on both sides of the mobile platform plate, and the rollers are rotatably attached to the inner side of the fixed cantilever frame. The drive motor is fixedly installed at the bottom of the mobile platform plate, and the drive threaded rod is fixedly installed on the output shaft of the drive motor. The drive threaded rod is rotatably installed on the mobile platform plate and threadedly connected to the threaded connecting frame. The drive motor is used to drive the mobile platform plate to move and retract. The micro switch is electrically connected to the drive motor and the alarm light pole.

[0015] Preferably, the mobile platform also includes a protective plate, which is fixedly installed on the mobile platform.

[0016] Preferably, the material feeding guide includes a rotating gathering plate and supporting threaded rods. The rotating gathering plate is rotatably mounted on the moving platform plate. Two supporting threaded rods are threadedly connected to the rotating gathering plate. Each of the two supporting threaded rods is equipped with a handwheel. The two supporting threaded rods are used to support the tilting of the rotating gathering plate and pass through the rotating gathering plate.

[0017] Preferably, the suspension connector includes a suspension anchor plate, rope sleeves, and a main steel wire rope. The main steel wire rope is tumblingly connected to two main rope groove pulleys. The suspension anchor plate has two rows of through holes for bolts to pass through and install the suspension anchor plate on the building floor slab. Two rope sleeves are fixedly installed on the suspension anchor plate, and the main steel wire rope passes through the two rope sleeves. The inner side of the two rope sleeves is provided with an arc-shaped chamfer. The suspension anchor plate has a sliding groove, and the main steel wire rope is used to suspend and fix the cantilever frame.

[0018] Preferably, the suspension connector further includes a rope slider and a switching control screw. The rope slider is slidably installed in a groove on the suspension anchor plate, and a main steel wire rope is fixedly installed on the rope slider. A switching control screw is rotatably installed on the suspension anchor plate, and hexagonal blocks are provided at both ends of the switching control screw. The switching control screw is threadedly connected to the rope slider, and the rope slider is used to adjust the position of both ends of the main steel wire rope.

[0019] Preferably, the guide positioning component includes a guide mounting block, a positioning bolt, and a protective ring. The guide mounting block is fixedly installed on the side of the fixed cantilever frame. The guide mounting block is threaded with a positioning bolt, which presses against the main steel wire rope. The guide mounting block is fixedly installed with a protective ring. The inner side of the protective ring has an arc structure, and the main steel wire rope passes through the protective ring and the guide mounting block.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention uses a detection contact component in conjunction with a stability detection unit to perform stability testing, detecting the vertical deformation and lateral displacement of the fixed cantilever frame. It detects whether the fixed cantilever frame is overloaded after bearing weight and whether lateral swaying is caused by factors such as wind force, thereby improving the safety of the fixed cantilever frame. At the same time, the detection is comprehensive and can also provide timely alarm prompts.

[0022] 2. This invention employs a mobile platform section to achieve automatic control of the movement and retraction of the mobile platform plate. When the mobile platform section settles or shakes, it automatically retracts under the control of a micro switch for protection. The mobile platform section, along with the materials, is moved into the building in a timely manner through retraction, reducing the stress on the fixed cantilever frame and ensuring safety in use. At the same time, the automatic control is more accurate, further reducing safety hazards.

[0023] 3. This invention uses a method of directly suspending and supporting the cantilever frame with the main steel wire rope, which makes the main steel wire rope more evenly stressed, ensuring convenient installation. The uniform stress on the main steel wire rope improves safety. At the same time, the traction suspension stress point of the main steel wire rope can be adjusted periodically, avoiding the problem of strength reduction caused by the main steel wire rope being connected to the fixed cantilever frame in a single position for a long time. This structure makes full use of the switching stress point of the main steel wire rope, extending the maintenance and replacement cycle of the main steel wire rope, reducing costs, and increasing service life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure for fixing the bottom of the cantilever frame in this invention;

[0026] Figure 3 This is a cross-sectional view of the internal structure at the fixed cantilever frame location in this invention;

[0027] Figure 4 This is a schematic diagram of the cantilever mounting portion in this invention;

[0028] Figure 5 This is a schematic diagram of the stability detection unit in this invention;

[0029] Figure 6 for Figure 3 Enlarged view of the structure of region B in the middle;

[0030] Figure 7 This is a schematic diagram of the mobile platform unit in this invention;

[0031] Figure 8 This is a schematic diagram of the material feeding guide in this invention;

[0032] Figure 9 This is a schematic diagram of the main steel wire rope in this invention;

[0033] Figure 10 This is a schematic diagram of the switching control screw in this invention;

[0034] Figure 11 for Figure 2 Enlarged view of the structure of region C in the middle.

[0035] In the diagram: 1. Cantilevered installation section; 101. Fixed cantilever frame; 102. Main rope grooved pulley; 103. Secondary traction rope; 104. Limit block; 105. Alarm light pole; 106. Threaded connection frame; 2. Stability detection section; 201. Detection support frame; 202. Detection mounting cylinder; 203. Micro switch; 204. Lifting connecting column; 205. Support spring; 3. Detection contact component; 301. Detection mounting frame; 302. Detection head; 4. Moving platform section; 401. 4011 Mobile platform plate; 402 Roller; 403 Drive motor; 404 Drive threaded rod; 405 Protective plate; 5. Material feeding guide; 501 Rotating gathering plate; 502 Support threaded rod; 6. Suspension connector; 601 Suspension anchor plate; 6011 Rope sleeve; 602 Main wire rope; 603 Rope slider; 604 Switching control screw; 7. Guide positioning component; 701 Guide mounting block; 702 Positioning bolt; 703 Protective ring. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-11 As shown:

[0038] This invention provides an automatic control steel cantilever unloading platform, including a cantilever mounting part 1, a stability detection part 2 mounted on the cantilever mounting part 1, a detection contact part 3 mounted at the bottom of the cantilever mounting part 1, the detection contact part 3 being attached to the upper part of the stability detection part 2, a movable platform part 4 mounted on the cantilever mounting part 1, the movable platform part 4 being movable on the cantilever mounting part 1, two material discharge guide parts 5 mounted on the movable platform part 4, the two material discharge guide parts 5 being symmetrically mounted, a suspension connector 6 mounted on the cantilever mounting part 1, the suspension connector 6 being used to suspend the cantilever mounting part 1, two guide positioning parts 7 mounted on the cantilever mounting part 1, the two guide positioning parts 7 being used in conjunction with the suspension connector 6, the cantilever mounting part 1 including a fixed cantilever frame 101 and a main rope groove wheel 102, two main rope groove wheels 102 being rotatably mounted at the bottom of the fixed cantilever frame 101, the fixed cantilever frame 101 having two rows of through holes, the two rows of through holes on the fixed cantilever frame 101 being used to pass bolts through to mount the fixed cantilever frame 101 onto the floor slab.

[0039] The cantilever installation part 1 also includes a secondary traction rope 103, a limiting block 104, an alarm light pole 105, and a threaded connection bracket 106. Two secondary traction ropes 103 are provided, one end of each rope is fixedly installed on the fixed cantilever frame 101, and the other ends are connected to the outer side of the building wall. Two limiting blocks 104 are fixedly installed at the bottom of the fixed cantilever frame 101. Each limiting block 104 has two through holes for passing through bolts to install it onto the outer wall of the building. The inner side of the fixed cantilever frame 101... A threaded connecting bracket 106 is fixedly installed, and the threaded connecting bracket 106 has a threaded hole. An alarm light pole 105 is installed on one side of the fixed cantilever frame 101. The stability detection unit 2 includes a detection support frame 201, a detection mounting cylinder 202, a micro switch 203, a lifting connecting column 204, and a support spring 205. The detection support frame 201 has a "T" shaped structure. The detection support frame 201 is fixedly installed between two limit blocks 104 by bolts. The detection mounting cylinder 202 is fixedly installed on the detection support frame 201. The micro switch 203 is fixedly installed inside the detection mounting cylinder 202. The detection mounting cylinder 202 slides... A lifting connecting column 204 is installed, with a concave top. A support spring 205 is sleeved on the lifting connecting column 204, connecting the lifting connecting column 204 and the detection mounting cylinder 202. A micro switch 203 is located below the lifting connecting column 204. The detection contact 3 includes a detection mounting frame 301 and a detection head 302. The detection mounting frame 301 is fixedly installed at the bottom of the fixed cantilever frame 101 by bolts. The detection head 302 is fixedly installed at the bottom of the detection mounting frame 301, with an arc-shaped end that rests against the lifting connecting column 202. 04 At the top, the detection head 302 is used to press the lifting connecting column 204; the detection contact 3 is used, and the stability detection part 2 is used to perform stability detection. It can detect the vertical deformation and lateral displacement of the fixed cantilever frame 101. It can detect whether the fixed cantilever frame 101 is overloaded after bearing the load and whether the fixed cantilever frame 101 is swayed by wind and other factors during daily use. It can improve the safety of the fixed cantilever frame 101 during use. The detection is comprehensive. The alarm light pole 105 can promptly remind the staff of any abnormality and prevent the staff from falling after stepping on the mobile platform part 4.The structure is more rational, and the concave structure at the top of the lifting connecting column 204, in conjunction with the detection head 302, enables horizontal and vertical detection. It features automatic control, safety, and stability. When the fixed cantilever frame 101 is subjected to overload or becomes loose, it undergoes a certain bending deformation. This causes the downward-pressing detection head 302 on the detection mounting frame 301 to press down on the lifting connecting column 204. If the fixed cantilever frame 101 is subjected to wind or other factors, causing significant lateral swaying, the downward-pressing detection head 302 will laterally press against the top of the lifting connecting column 204, causing it to move downwards. This downward movement of the lifting connecting column 204 will press against the micro switch 203, again controlling the alarm light pole 105 to illuminate and provide an alarm indication.

[0040] The mobile platform section 4 includes a mobile platform plate 401, rollers 4011, a drive motor 402, and a drive threaded rod 403. The two sides of the mobile platform plate 401 are slidably attached to the inner side of the fixed cantilever frame 101. Two rows of rollers 4011 are rotatably mounted on both sides of the mobile platform plate 401, rolling against the inner side of the fixed cantilever frame 101. The drive motor 402 is fixedly mounted at the bottom of the mobile platform plate 401. The drive threaded rod 403 is fixedly mounted on the output shaft of the drive motor 402 and rotatably mounted on the mobile platform plate 401. The drive threaded rod 403 is threadedly connected to a threaded connecting bracket 106. The drive motor 402 is used to drive the mobile platform plate 401 to move and retract. (Micro switch...) 203 is electrically connected to the drive motor 402 and the alarm light pole 105; the mobile platform section 4 also includes a protective plate 404, which is fixedly installed on the mobile platform plate 401; the protective plate 404 is used to prevent personnel from falling; by using the mobile platform section 4, the movement and retraction of the mobile platform plate 401 can be automatically controlled. When the mobile platform section 4 settles or shakes, the micro switch 203 works to automatically retract and protect, and the mobile platform section 4, together with the materials, is moved into the building in time by retraction, reducing the stress on the fixed cantilever frame 101 and ensuring safety during use. At the same time, the automatic control is more accurate, reducing safety hazards, and can also prevent the fixed cantilever frame 101 from falling and causing losses in abnormal conditions such as overload.

[0041] The suspension connector 6 includes a suspension anchor plate 601, rope sleeves 6011, and a main steel wire rope 602. The main steel wire rope 602 is rotatably connected to two main rope groove pulleys 102. The suspension anchor plate 601 has two rows of through holes for bolts to pass through and install it onto the building floor slab. Two rope sleeves 6011 are fixedly installed on the suspension anchor plate 601, through which the main steel wire rope 602 passes. The inner sides of the two rope sleeves 6011 are respectively provided with arc-shaped chamfers. The suspension anchor plate 601 has a sliding groove for suspending and fixing the main steel wire rope 602. The cantilever frame 101; the suspension connector 6 also includes a rope slider 603 and a switching control screw 604. The rope slider 603 is slidably installed in a groove on the suspension anchor plate 601. The main steel wire rope 602 is fixedly installed on the rope slider 603. The switching control screw 604 is rotatably installed on the suspension anchor plate 601. Hexagonal blocks are provided at both ends of the switching control screw 604. The switching control screw 604 is threadedly connected to the rope slider 603. The rope slider 603 is used to adjust the position of the two ends of the main steel wire rope 602. The guide positioning component 7 includes a guide mounting block 701, a positioning bolt 702, and a protective ring 703. The guide mounting block 701 is fixedly installed. On the side of the fixed cantilever frame 101, a positioning bolt 702 is threaded onto the guide mounting block 701. The positioning bolt 702 presses against the main steel wire rope 602. A protective ring 703 is fixedly installed on the guide mounting block 701. The inner side of the protective ring 703 has an arc structure. The main steel wire rope 602 passes through the protective ring 703 and the guide mounting block 701. By using the guide positioning component 7 in conjunction with the suspension connector 6, the traditional method of two independent installations of the main steel wire rope 602 is abandoned. Instead, the main steel wire rope 602 is directly suspended to support and fix the cantilever frame 101. This method results in more balanced force on the main steel wire rope 602 and avoids the problems that occur after installation when the main steel wire rope 602 is installed independently. Uneven stress distribution is common during installation, requiring precise manual measurement. This structure ensures ease of installation while ensuring uniform stress on the main wire rope 602, improving safety. By using the entire main wire rope 602 to pull on the fixed cantilever frame 101, in conjunction with the rope slider 603, the traction and suspension stress point of the main wire rope 602, i.e., the connection position with the main rope groove wheel 102, can be periodically adjusted. This avoids the problem of reduced strength of the main wire rope 602 due to prolonged connection in a single position. This structure makes full use of the main wire rope 602, extending its maintenance and replacement cycle, increasing its service life, and improving the safety of the fixed cantilever frame 101.

[0042] Based on the above, the material unloading guide 5 includes a rotating gathering plate 501 and supporting threaded rods 502. The rotating gathering plate 501 is rotatably mounted on the movable platform plate 401. Two supporting threaded rods 502 are threadedly connected to the rotating gathering plate 501. Each of the two supporting threaded rods 502 is equipped with a handwheel. The two supporting threaded rods 502 are used to support the tilt of the rotating gathering plate 501 and pass through the rotating gathering plate 501. By using the material unloading guide 5, different cargo unloading operations can be easily controlled and switched, realizing the unloading of materials such as plates in a flat state. At the same time, the rotating gathering plate 501 can be used to limit the movement of steel pipes after tilting, preventing the materials from moving around. It also gathers the materials in the middle of the fixed cantilever frame 101, improving balance and stability, making it safer, simple and convenient to operate, and flexible to use.

[0043] The working principle of this embodiment:

[0044] Embedded steel bars for installing secondary traction ropes 103 are installed on the outer wall of the building. Bolts are inserted into the two rows of through holes on the fixed cantilever frame 101, and the fixed cantilever frame 101 is installed on the building floor slab using bolts. The side of the limiting block 104 is attached to the window side of the building and installed using bolts. One end of each of the two secondary traction ropes 103 is connected to the embedded steel bars on the outer wall of the building and installed using existing wire rope clips and other parts. At the same time, bolts are inserted into the two rows of through holes of the suspension anchor plate 601 and installed on the building floor slab. The two secondary traction ropes 103 serve as traction safety and are also connected to the outer wall of the building, thus completing this structure. The basic installation; when installing the suspension anchor plate 601, under the action of gravity, the fixed cantilever frame 101 naturally drives the main rope groove wheel 102 to press down the main wire rope 602. At this time, the main wire rope 602 adapts to the position of the main rope groove wheel 102. With the suspension traction of the main wire rope 602, the main wire ropes 602 on both sides of the main rope groove wheel 102 are subjected to the same force. It is no longer necessary to perform cumbersome measurement and adjustment when installing two main wire ropes 602 as in traditional technology. At this time, the positioning bolt 702 can be tightened to position the main wire rope 602. By rotating the support threaded rod 502, the rotating gathering plate 501 is supported. At this time, the two rotating gathering plates 501 are in an inclined state, that is... It can be used to fix heavy, easily shifting steel pipes. When the fixed cantilever frame 101 is subjected to overload or loosening, it undergoes a certain bending deformation. The fixed cantilever frame 101 drives the downward pressure detection head 302 on the detection mounting frame 301 to press down the lifting connecting column 204. At this time, the lifting connecting column 204 presses the micro switch 203, which controls the alarm light pole 105 to light up and sound an alarm. At the same time, if the fixed cantilever frame 101 is subjected to wind or other factors and swings laterally, it can drive the downward pressure detection head 302 on the detection mounting frame 301 to move laterally. At this time, the downward pressure detection head 302 laterally presses the lifting connecting column 204. The top of the column 204 is pressed down; the detection head 302 moves downward and squeezes the micro switch 203, which controls the alarm light pole 105 to light up and alarm, indicating that an abnormality has occurred to the worker; when the micro switch 203 is pressed, the drive motor 402 is controlled to rotate, and the drive threaded rod 403 is rotated. In conjunction with the threaded connecting frame 106, when the drive threaded rod 403 rotates, it drives the movable platform plate 401 to slide on the fixed cantilever frame 101 through the roller 4011, and moves the movable platform plate 401 to the interior of the building, reducing the weight on the fixed cantilever frame 101 and avoiding the safety hazards caused by the fixed cantilever frame 101 and the suspension connector 6 falling off.

[0045] When it is necessary to adjust the stress point of the main wire rope 602, ensure that there is no cargo load on the moving platform 4, loosen the two positioning bolts 702, and use a wrench to control the rotation of the switching control screw 604, which will drive the rope slider 603 to move. At this time, the rope slider 603 will drive the main wire rope 602 to move on the main rope groove wheel 102, thereby switching the position of the main wire rope 602 corresponding to the main rope groove wheel 102. This will prevent the main wire rope 602 from bearing stress at the main rope groove wheel 102 for a long time, which would cause a decrease in strength and achieve the purpose of adjusting the stress point of the main wire rope 602.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic control type steel cantilever unloading platform, comprising a cantilever mounting part (1), a stability detection part (2) is mounted on the cantilever mounting part (1), characterized in that: The overhanging installation part (1) is provided with a detection contact piece (3) at the bottom, and the detection contact piece (3) is attached to the upper part of the stable detection part (2); The overhanging installation part (1) is provided with a moving platform part (4), and the moving platform part (4) moves on the overhanging installation part (1); The moving platform part (4) is provided with two discharging guide parts (5), and the two discharging guide parts (5) are symmetrically installed; The overhanging installation part (1) is provided with a suspension connecting piece (6), and the suspension connecting piece (6) is used for suspending the overhanging installation part (1); The overhanging installation part (1) is provided with two guide positioning pieces (7), and the two guide positioning pieces (7) are used in cooperation with the suspension connecting piece (6); The overhanging installation part (1) comprises a fixed overhanging frame (101) and a main rope groove wheel (102), the bottom of the fixed overhanging frame (101) is rotatably provided with two main rope groove wheels (102), two rows of through holes are arranged on the fixed overhanging frame (101), and the two rows of through holes are used for installing the fixed overhanging frame (101) on a floor slab through bolts; The overhanging installation part (1) further comprises a secondary traction rope (103), a limiting block (104), an alarm lamp rod (105) and a threaded connection frame (106); The stable detection part (2) comprises a detection support frame (201), a detection installation cylinder (202), a micro switch (203), a lifting connecting column (204) and a supporting spring (205), the detection support frame (201) is in a T-shaped structure, the detection support frame (201) is fixedly installed between the two limiting blocks (104) through bolts, the detection installation cylinder (202) is fixedly installed on the detection support frame (201), the micro switch (203) is fixedly installed in the detection installation cylinder (202), the lifting connecting column (204) is slidably installed on the detection installation cylinder (202), the top of the lifting connecting column (204) is concave, the supporting spring (205) is sleeved on the lifting connecting column (204), the supporting spring (205) is connected between the lifting connecting column (204) and the detection installation cylinder (202), and the micro switch (203) is located below the lifting connecting column (204); The detection contact piece (3) comprises a detection installation frame (301) and a detection head (302), the detection installation frame (301) is fixedly installed at the bottom of the fixed overhanging frame (101) through bolts, the detection head (302) is fixedly installed at the bottom of the detection installation frame (301), the end of the detection head (302) is arc-shaped, the end of the detection head (302) is attached to the top of the lifting connecting column (204), and the detection head (302) is used for extruding the lifting connecting column (204).

2. The automatically controlled steel cantilever unloading platform according to claim 1, characterized in that: Two auxiliary traction ropes (103) are arranged, one end of the two auxiliary traction ropes (103) is fixedly installed on the fixed cantilever frame (101), the other end of the two auxiliary traction ropes (103) is connected to the outside of the building wall, two limiting blocks (104) are fixedly installed at the bottom of the fixed cantilever frame (101), two through holes are respectively arranged in the two limiting blocks (104), the two through holes arranged in the two limiting blocks (104) are respectively used for installing the limiting blocks (104) on the outer wall of the building through the bolts, a threaded connection frame (106) is fixedly installed on the inner side of the fixed cantilever frame (101), a threaded hole is arranged in the threaded connection frame (106), and an alarm lamp pole (105) is installed on one side of the fixed cantilever frame (101).

3. The automatically controlled steel cantilever unloading platform according to claim 1, characterized in that: The moving platform part (4) comprises a moving platform plate (401), a roller (4011), a driving motor (402) and a driving threaded rod (403), the moving platform plate (401) is slidably attached to the inner side of the fixed cantilever frame (101) on both sides, two rows of rollers (4011) are rotatably installed on both sides of the moving platform plate (401), the rollers (4011) are rotatably attached to the inner side of the fixed cantilever frame (101), the driving motor (402) is fixedly installed at the bottom of the moving platform plate (401), the output shaft of the driving motor (402) is fixedly installed with the driving threaded rod (403), the driving threaded rod (403) is rotatably installed on the moving platform plate (401), and the driving threaded rod (403) is threadedly connected to the threaded connection frame (106). The driving motor (402) is used for driving the moving platform plate (401) to move back and shrink, and the micro switch (203) is electrically connected with the driving motor (402) and the alarm lamp pole (105).

4. The automatically controlled steel cantilever unloading platform according to claim 3, characterized in that: The moving platform part (4) further comprises a protection plate (404), and the protection plate (404) is fixedly installed on the moving platform plate (401).

5. The automatically controlled steel cantilever unloading platform according to claim 3, characterized in that: The discharging guide part (5) comprises a rotating gathering plate (501) and a supporting threaded rod (502), the rotating gathering plate (501) is rotatably installed on the moving platform plate (401), two supporting threaded rods (502) are threadedly connected to the rotating gathering plate (501), hand wheels are arranged on the two supporting threaded rods (502), respectively, and the two supporting threaded rods (502) are used for supporting the rotating gathering plate (501) to tilt, and the two supporting threaded rods (502) pass through the rotating gathering plate (501), respectively.

6. The automatically controlled steel catwalk unloading platform according to claim 1, characterized in that: The suspension connecting piece (6) comprises a suspension anchor plate (601), a rope sleeve (6011) and a main steel wire rope (602), two main rope groove wheels (102) are respectively connected with the main steel wire rope (602) in rolling mode, two rows of through holes are formed in the suspension anchor plate (601), the two rows of through holes are used for installing the suspension anchor plate (601) on a building floor through bolts, two rope sleeves (6011) are fixedly installed on the suspension anchor plate (601), the main steel wire rope (602) passes through the two rope sleeves (6011), the inner sides of the two rope sleeves (6011) are respectively provided with arc chamfers, a sliding groove is arranged on the suspension anchor plate (601), and the main steel wire rope (602) is used for suspending and fixing the cantilever frame (101).

7. An automatically controlled steel cantilever unloading platform according to claim 6, characterized in that: The suspension connecting piece (6) further comprises a rope sliding block (603) and a switching control screw rod (604), the rope sliding block (603) is slidingly installed in the sliding groove on the suspension anchor plate (601), the main steel wire rope (602) is fixedly installed on the rope sliding block (603), the switching control screw rod (604) is rotatably installed on the suspension anchor plate (601), the switching control screw rod (604) is respectively provided with a hexagonal block at two ends, the switching control screw rod (604) is in threaded connection with the rope sliding block (603), and the rope sliding block (603) is used for adjusting the positions of two ends of the main steel wire rope (602).

8. The automatically controlled steel catwalk unloading platform according to claim 6, characterized in that: The guide positioning piece (7) comprises a guide mounting block (701), a positioning bolt (702) and a protection ring (703), the guide mounting block (701) is fixedly installed on the side of the fixed cantilever frame (101), the positioning bolt (702) is in threaded connection with the guide mounting block (701), the positioning bolt (702) is in extrusion fit with the main steel wire rope (602), the protection ring (703) is fixedly installed on the guide mounting block (701), the inner side of the protection ring (703) is in arc-shaped structure, and the main steel wire rope (602) passes through the protection ring (703) and the guide mounting block (701).

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