Anti-falling system of tower building machine and working method of anti-falling system

Abstract

The invention provides an anti-falling system of a tower building machine and a working method of the anti-falling system, and belongs to the technical field of tower building machines, the anti-falling system structurally comprises an annular tower main body, an annular track frame is arranged on the inner ring of the upper end of the annular tower main body, and a track of the annular track frame is movably sleeved with a plurality of cantilever telescopic platforms used for annular displacement; each overhanging telescopic platform is provided with an anti-falling hoisting end, each anti-falling hoisting end comprises a coiler, a steel wire rope is wound around each coiler, and a rope body of each steel wire rope is sleeved with an anti-falling detection part and a first guide wheel piece which are fixedly installed on the corresponding overhanging telescopic platform in a penetrating mode. An anti-falling hanging head set used for conducting anti-falling clamping and pressing on I-shaped steel is hung on the tail portion of the other end of the steel wire rope, an anti-falling detection part composed of a detection base, a detection guide wheel set, a second guide wheel piece, a third guide wheel piece, an anti-falling braking end and a controller is used for conducting abnormal detection on a rope body of the steel wire rope, and the hanging end of the tower building machine has the anti-falling function.

Description

Technical Field

[0001] The invention relates to a tower crane anti-falling system and a working method thereof, belonging to the technical field of tower cranes. Background Art

[0002] A tower crane is an intelligent construction equipment used in the construction of bridge towers. It is mainly composed of a climbing mechanism and a suspension mechanism to build templates. Using a tower crane to build towers can not only make the originally complex construction process interconnected and orderly, but also reduce labor input and improve the construction efficiency of towers.

[0003] When hoisting, the suspension mechanism of the tower crane generally adopts a reel to reel the wire rope to realize the hoisting of the workpiece by the hoisting head. However, the existing technology does not have an anti-fall system for the wire rope to detect abnormalities in the routing of the wire rope and abnormalities in the damage of the wire rope body, and timely brake and bite to prevent the workpiece from falling when hoisting. In addition, the hoisting head generally adopts a clamping and hanging method to fix the workpiece. When the workpiece is hoisted, if the left and right are asymmetrical, it is easy to cause the risk of unilateral slippage and falling. In view of the above shortcomings, the present invention proposes an anti-fall system for a tower crane and a working method thereof. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a tower crane anti-falling system and a working method thereof to solve the existing problems.

[0005] In order to achieve the above-mentioned object, the present invention is implemented through the following technical solutions: an anti-fall system for a tower crane, the structure of which includes an annular tower body, and an annular track frame is provided on the inner ring of the upper end of the annular tower body, and a plurality of cantilevered telescopic platforms for circular movement are movably sleeved on the track of the annular track frame, and each cantilevered telescopic platform is provided with an anti-fall hoisting end, the anti-fall hoisting end includes a reel, and a steel wire rope is wound on the reel, and the rope body of the steel wire rope is respectively sleeved with an anti-fall detection part and a first guide wheel member fixedly mounted on the cantilevered telescopic platform, and the other end of the steel wire rope is hung with an anti-fall lifting head group for preventing the I-beam from being disengaged and clamped; The anti-fall detection part includes a detection seat, and the detection seat cavity is sequentially arranged with a detection guide wheel group, a second guide wheel member, a third guide wheel member and an anti-fall brake end for enabling the wire rope to achieve Z-shaped movement for detection and braking to prevent falling. A controller is provided at the upper end of the detection seat cavity, and the detection guide wheel group and the anti-fall brake end are electrically connected to the controller; The anti-falling hanging head group includes a hanging head body, and two hook parts are symmetrically hinged in the cavity of the lower end of the hanging head body, and the upper ends of the two hook parts are vertically pressed against each other to open and close the two hook parts to hang the I-beam, and an anti-slip end is used to bite the top surface of the I-beam to prevent lateral sliding. A manual pushing end is laterally pressed against the top surface of the anti-slip end, and the right end of the manual pushing end extends to the outside of the right side of the hanging head body.

[0006] As a further improvement, a detection chamber is provided in the middle of the detection seat, a first through-hole is provided on the upper left side of the detection chamber, and a second through-hole is provided on the lower right side of the detection chamber.

[0007] A further improvement is that the detection guide wheel group includes a fourth guide wheel component, and a first detection head and a second detection head for detecting damage to the wire rope are symmetrically arranged at the upper and lower ends on the right side of the fourth guide wheel component. The rear end transmission connection of one of the guide wheels on the fourth guide wheel component is connected to a speed meter for detecting abnormal running speed of the wire rope.

[0008] A further improvement is that the anti-fall braking end includes an anti-fall seat, and a rope running groove is transversely opened on the upper end of the anti-fall seat, and a brake pushing groove is opened on the lower end of the anti-fall seat, a plurality of push rod through holes are opened at intervals between the rope running groove and the brake pushing groove, and a plurality of stud holes and a plurality of spring anti-slip holes are opened at intervals on the groove wall in the middle of the upper end of the rope running groove; A first brake clamping group is installed between each of the stud holes and the corresponding two spring anti-detachment holes, a second brake clamping head group is installed between the brake push groove, each push rod through-hole and the lower end of the rope groove, and a fifth guide wheel component and a sixth guide wheel component are provided at the tail of the left and right sides of the rope groove.

[0009] A further improvement is that each of the first brake clamping groups includes a first semi-lunar clamping block, and the left and right sides of the rear end of the first semi-lunar clamping block are provided with first springs that cooperate with the spring anti-drop sleeve holes, and a fixing bolt for locking into the stud hole is sleeved through the middle of the first semi-lunar clamping block, and a first biting tooth is provided on the arc surface of the first semi-lunar clamping block; The second brake chuck assembly includes a telescoping device, and a push frame is transversely provided at the upper end of the telescoping device, and a plurality of support push rods for passing through the push rod through holes are arranged at intervals on the push frame, and a second semi-lunar clamping block is hingedly connected to the rear end of each support push rod, and a second biting tooth is provided on the arc surface of the second semi-lunar clamping block; Each of the first semi-lunar clamping blocks and each of the second semi-lunar clamping blocks are arranged in a staggered manner.

[0010] A further improvement is that a hook movable groove is opened in the middle of the bottom surface of the hanging head body, and a lifting push groove is opened at the upper end of the hanging head body, and a pressure rod sleeve hole is opened in the middle between the hook movable groove and the lifting push groove, and the pressure rod sleeve hole is a hexagonal hole.

[0011] A further improvement is that the two hook parts include L-shaped hooks, and the L-shaped hooks are hinged in the hook movable groove, and a swinging push block is laterally arranged at the upper end of the L-shaped hook, and a reset spring for automatically expanding the L-shaped hook is sleeved between the hinge between the L-shaped hook and the hook movable groove wall.

[0012] A further improvement is that the anti-slip end includes a trapezoidal pressure block for abutting against the surfaces of two left-right symmetrical swinging push blocks, and an anti-slip pressure seat is longitudinally provided on the bottom surface of the trapezoidal pressure block, and a plurality of anti-slip pressure blocks are hingedly connected to the bottom surface of the anti-slip pressure seat at intervals, and a pressure rod adapted to pass through the pressure rod sleeve hole is provided in the middle of the top surface of the trapezoidal pressure block, and a second spring for providing an upward thrust to the pressure rod is provided on the rod body of the pressure rod, and a pushing wheel is provided on the top surface of the pressure rod, and the anti-slip pressure block has the same structure as the second semi-lunar clamping block.

[0013] A further improvement is that the manual pushing end includes a slide, and a movable sleeve on the slide is provided with a push wheel pressure block, and the right end of the push wheel pressure block is threadedly connected to a screw handle, and the left side of the push wheel pressure block is provided with an inclined section for pushing the push wheel downward.

[0014] A further improvement is that the retractor, the first detection head, the second detection head and the speed meter are existing technologies, and their structures are not described in detail here.

[0015] A further improvement is that the annular tower body, annular track frame, and cantilevered telescopic platform are all existing technologies, and their structures are not described in detail here.

[0016] A further improvement is that the cantilevered telescopic platform has a built-in moving end for arc movement on the annular track frame.

[0017] In addition, the present invention also provides a working method of the anti-falling system of the tower crane, which is as follows: During use, the reel first reels and hoists the wire rope. At this time, the wire rope will be inspected for abnormal routing and damage to the wire rope body at the detection guide wheel assembly in the anti-fall detection unit. When an abnormality is detected, the anti-fall brake end is controlled by the anti-fall head assembly to promptly engage the anti-fall brake to avoid the risk of the anti-fall head assembly falling. When the anti-fall lifting head assembly is hanging the I-beam, the manual pushing end is manually rotated to make the push wheel pressure block push the anti-slip end downward. During this process, the trapezoidal pressure block will drop to press the two hook parts together. The closed two hook parts clamp the two sides of the I-beam, and at the same time, each pushing wheel will swing and press the top surface of the I-beam to prevent the I-beam from being asymmetric when being lifted by the anti-fall lifting head assembly, and there is a risk of unilateral slippage and falling.

[0018] The beneficial effects of the present invention are: The present invention provides an anti-falling system for a tower crane and a working method thereof. The anti-falling detection part composed of a detection seat, a detection guide wheel group, a second guide wheel part, a third guide wheel part, an anti-falling braking end and a controller detects abnormalities of the rope body of the wire rope, so that the hoisting end of the tower crane has an anti-falling function, wherein the controller is the master control, the detection guide wheel group detects abnormalities of the virtual winding and unwinding of the retractor, and detects abnormalities of the broken strands of the wire rope itself, and the wire rope is Z-shaped guided by the second guide wheel part and the third guide wheel part between the detection guide wheel group and the anti-falling braking end, so that the reserved line length of the wire rope is sufficient, so that the anti-falling braking end has enough time to brake and bite in time, and the first semi-moon clamping blocks and the second semi-moon clamping blocks on the anti-falling braking end are staggered and connected in an articulated manner, so that the braking anti-falling performance is significantly improved, and the problem of slipping line due to excessive load-bearing at the anti-falling lifting head group end after biting will not occur.

[0019] In addition, the anti-fall lifting head group is composed of a lifting head body, two hook parts, an anti-slip end, and a manual pushing end. The two hook parts are initialized to an unfolded state, which is convenient for the set hanging of the I-beam, and the closing of the two hook parts can be achieved by simply shaking the manual pushing end. Moreover, when the anti-slip end is pushed down to close the two hook parts, the pushing wheels can be synchronously pressed against the top surface of the I-beam and bitten. The pushing wheels adopt a semi-lunar structure design and are also connected in an articulated manner. After the pushing wheels are bitten, when the I-beam is lifted, there will be an anti-fall function that is automatically linked to the I-beam and swings toward the heavier end of the I-beam, biting tighter and tighter. This prevents the anti-fall lifting head group from sliding sideways and falling off after lifting the I-beam, and the anti-fall performance is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the top structure of a tower crane anti-falling system of the present invention; Figure 2 For the present invention Figure 1 A magnified schematic diagram of part A in FIG; Figure 3 This is a schematic diagram of the internal structure of the anti-fall detection unit of the present invention; Figure 4 This is a schematic diagram of the structure of the detection guide wheel group of the present invention; Figure 5 It is a left side view of the fourth guide wheel member of the present invention; Figure 6 This is a schematic diagram of the anti-fall braking end structure of the present invention; Figure 7 This is a schematic diagram of the anti-fall seat structure of the present invention; Figure 8 For the present invention Figure 6 A magnified schematic diagram of part B in FIG. Figure 9 This is a schematic structural diagram of the second brake chuck assembly of the present invention; Figure 10 This is a structural diagram of the anti-fall hanging head assembly of the present invention; Figure 11 This is a schematic diagram of the anti-slip end structure of the present invention; Figure 12 This is a diagram showing the effect of the anti-drop pressure block of the present invention on the hoisting and anti-falling of the I-beam. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1-12 The present invention provides an anti-fall system for a tower crane and a working method thereof: its structure includes an annular tower body 1, and an annular track frame 2 is provided on the inner ring of the upper end of the annular tower body 1, and a plurality of cantilevered telescopic platforms 3 for circular movement are movably sleeved on the track of the annular track frame 2, and each cantilevered telescopic platform 3 is provided with an anti-fall lifting end 4, the anti-fall lifting end 4 includes a retractor 5, and a steel wire rope 6 is wound on the retractor 5, and the rope body of the steel wire rope 6 is respectively sleeved with an anti-fall detection part 7 and a first guide wheel part 8 fixedly mounted on the cantilevered telescopic platform 3, the other end of the steel wire rope 6 is hung with an anti-fall hanging head group 9 for clamping and pressing the I-beam a1 to prevent it from falling off, the anti-fall detection part 7 includes a detection seat 71, and the cavity of the detection seat 71 is sequentially arranged with a plurality of cantilevered telescopic platforms 3 for making the steel wire rope 6 The rope 6 realizes Z-shaped movement for detection and braking to prevent falling, and is equipped with a detection guide wheel group 72, a second guide wheel component 73, a third guide wheel component 74 and an anti-falling brake end 75. A controller 76 is provided at the upper end of the cavity of the detection seat 71. The detection guide wheel group 72 and the anti-falling brake end 75 are electrically connected to the controller 76. The anti-falling hanging head group 9 includes a hanging head body 91, and two hook components 92 are symmetrically hinged in the cavity of the lower end of the hanging head body 91, and the upper ends of the two hook components 92 are vertically pressed with an anti-slip end 93 for opening and closing the two hook components 92 to hang the I-beam a1, and the top surface of the I-beam a1 is bitten to prevent lateral sliding. The top surface of the anti-slip end 93 is laterally abutted with a manual pushing end 94, and the right end of the manual pushing end 94 extends to the outside of the right side of the hanging head body 91.

[0023] A detection chamber 711 is defined in the middle of the detection seat 71 , a first opening 712 is defined on the upper left side of the detection chamber 711 , and a second opening 713 is defined on the lower right side of the detection chamber 711 .

[0024] The detection guide wheel group 72 includes a fourth guide wheel component 721, and the first detection head 722 and the second detection head 723 for detecting damage to the rope body of the wire rope 6 are symmetrically arranged at the upper and lower ends on the right side of the fourth guide wheel component 721. The rear end transmission connection of one of the guide wheels on the fourth guide wheel component 721 is connected to a speed meter 724 for detecting abnormal running speed of the wire rope 6.

[0025] The anti-fall braking end 75 includes an anti-fall seat 751, and a rope groove 7511 is horizontally opened at the upper end of the anti-fall seat 751, and a brake push groove 7512 is opened at the lower end of the anti-fall seat 751, and a plurality of push rod through-holes 7513 are opened at intervals between the rope groove 7511 and the brake push groove 7512, and a plurality of stud holes 7514 and a plurality of spring anti-detachment holes 7515 are spaced apart on the groove wall in the middle of the upper end of the rope groove 7511, and a first brake clamping group 752 is set between each stud hole 7514 and the corresponding two spring anti-detachment holes 7515, and a second brake clamping head group 753 is set between the brake push groove 7512, each push rod through-hole 7513 and the lower end of the rope groove 7511, and a fifth guide wheel component 754 and a sixth guide wheel component 755 are set at the tails of the left and right sides of the rope groove 7511.

[0026] Each of the first brake clamping groups 752 includes a first semi-lunar clamping block 7521, and the left and right sides of the rear end of the first semi-lunar clamping block 7521 are provided with a first spring 7522 that cooperates with the spring anti-dropping sleeve hole 7515, and the middle part of the first semi-lunar clamping block 7521 is provided with a fixing bolt 7523 for locking into the stud hole 7514, and the arc surface of the first semi-lunar clamping block 7521 is provided with a first biting tooth 7524. The second brake clamping head group 753 includes a telescopic device 7 531, and a push rack 7532 is horizontally provided at the upper end of the telescopic device 7531, and a plurality of support push rods 7533 for passing through the push rod through-hole 7513 are arranged at intervals on the push rack 7532, and each of the support push rods 7533 is hingedly connected to a second semi-lunar clamping block 7534 at the rear end, and a second biting tooth 7535 is provided on the arc surface of the second semi-lunar clamping block 7534, and each of the first semi-lunar clamping blocks 7521 and each of the second semi-lunar clamping blocks 7534 are staggered and arranged.

[0027] A hook movable groove 911 is provided in the middle of the bottom surface of the hanging head body 91, and a lifting push groove 912 is provided at the upper end of the hanging head body 91, and a pressure rod sleeve hole 913 is provided in the middle between the hook movable groove 911 and the lifting push groove 912, and the pressure rod sleeve hole 913 is a hexagonal hole.

[0028] The two hook members 92 include an L-shaped hook 921, and the L-shaped hook 921 is hinged in the hook movable groove 911, and a swing push block 922 is laterally arranged at the upper end of the L-shaped hook 921, and a return spring 923 for automatically unfolding the L-shaped hook 921 is sleeved between the hinged part of the L-shaped hook 921 and the wall of the hook movable groove 911.

[0029] The anti-slip end 93 includes a trapezoidal pressure block 931 for abutting against the surfaces of two symmetrical swinging push blocks 922, and an anti-slip pressure seat 932 is longitudinally provided on the bottom surface of the trapezoidal pressure block 931, and a plurality of anti-slip pressure blocks 933 are hingedly connected to the bottom surface of the anti-slip pressure seat 932 at intervals. A pressure rod 934 adapted to pass through the pressure rod sleeve hole 913 is provided in the middle of the top surface of the trapezoidal pressure block 931, and a second spring 935 for providing an upward thrust to the pressure rod 934 is sleeved on the rod body of the pressure rod 934, and a pushing wheel 936 is provided on the top surface of the pressure rod 934. The anti-slip pressure block 933 has the same structure as the second semi-lunar clamping block 7534.

[0030] The manual pushing end 94 includes a slide 941, and a push wheel pressure block 942 is movably sleeved on the slide 941, and a screw handle 943 is threadedly connected to the right end of the push wheel pressure block 942. The left side of the push wheel pressure block 942 is provided with an inclined section 944 for pushing the push wheel 936 downward.

[0031] Working principle: When in use, the reel 5 first reels and hoists the wire rope 6. At this time, the wire rope 6 will be detected for abnormal routing and abnormal damage to the wire rope 6 at the detection guide wheel group 72 in the anti-fall detection part 7. When an abnormal problem is detected, the anti-fall braking end 75 is controlled by the anti-fall lifting head group 9 to perform timely anti-fall braking and engagement, thereby avoiding the risk of falling of the anti-fall lifting head group 9; It should be noted that there are two aspects of abnormal detection of the wire rope 6. The first is that the retractor 5 has a false winding condition for the wire rope 6. At this time, the wire rope 6 may suddenly fall rapidly when it is unwinding. During the detection, a guide wheel on the fourth guide wheel 721 will be quickly driven by the wire rope 6 to rotate, so that the speed meter 724 detects that the speed of the guide wheel is abnormal. The second is that when the wire rope 6 is running, the first detection head 722 and the second detection head 723 are used to detect whether the rope body of the wire rope 6 is broken. Because the broken strands of the wire rope 6 will easily cause the wire to break, there is a risk of the anti-fall lifting head group 9 falling when lifting the I-beam a1. In addition, when the above two abnormal problems are detected, a signal will be transmitted to the controller 76, and the controller 76 will issue an instruction to the anti-fall braking end 75 to timely prevent the falling brake line. The anti-fall braking of the anti-fall braking end 75 is to extend the telescopic device 7531, drive the push frame 7532 and each support push rod 7533 to extend, so that each second semi-lunar clamping block 7534 and each first semi-lunar clamping block 7521 adopt a staggered manner to clamp the rope body of the wire rope 6, wherein the support push rod 7533 is arranged on the support rod 7533 of the anti-fall braking end 75. The cooperation between the rod 7533 and the push rod through-hole 7513 plays a major supporting role for the second semi-lunar clamping block 7534, so that the telescoping device 7531 is not subjected to force, and the first semi-lunar clamping block 7521 and the second semi-lunar clamping block 7534 are both hinged. When the wire rope 6 is clamped, due to the load-bearing of the anti-falling hanging head group 9, the first semi-lunar clamping block 7521 and the second semi-lunar clamping block 7534 will swing in the direction of the force of the anti-falling hanging head group 9, and the clamping effect will become tighter and tighter. Figure 8 In addition, because the wire rope 6 between the detection guide wheel group 72 and the anti-fall braking end 75 is arranged in a Z-shaped arrangement, the reserved length of the wire rope 6 is sufficient, so that the anti-fall braking end 75 can have enough time to brake the brake line in time after the detection of the guide wheel group 72.

[0032] When the anti-fall lifting head group 9 is hanging the I-beam a1, the manual pushing end 94 is manually rotated to make the push wheel pressure block 942 push the anti-slip end 93 downward. During this process, the trapezoidal pressure block 931 will drop to press the two hook members 92 together. The closed two hook members 92 clamp the two sides of the I-beam a1, and at the same time, each pushing wheel 936 will swing and press the top surface of the I-beam a1 to prevent the I-beam a1 from being asymmetrical when being lifted by the anti-fall lifting head group 9, and there is a risk of unilateral slippage and falling. It should be noted that the anti-fall hanging method of the anti-fall hanging head group 9 is that, in the initial stage, when the two hook members 92 are not pressed by the trapezoidal pressure block 931, under the action of the reset spring 923, the two L-shaped hooks 921 will be in an open state, which is convenient for the insertion of the I-beam a1. When the trapezoidal pressure block 931 presses against the swinging push block 922, the closing effect is presented. Please refer to the attached figure. Figure 10 , and because the hanging of the I-beam a1 is mostly asymmetrical on both sides, the I-beam a1 is in an inclined state when it is hoisted, so that the horizontal length of the I-beam a1 will not be too long, and the problem of the external tower being stuck during the hoisting movement will occur. If only the two sides of the I-beam a1 are hooked by two hook members 92, and the top surface is not pressed, a unilateral side slip and fall problem will occur. The anti-slip end 93 of the present invention can make it possible to close the two hook members 92 while simultaneously driving each pushing wheel 936 to descend and press the I-beam a1 to lock it, and each pushing wheel 936 is a half-moon structure and adopts an articulated swing design, so that the pushing wheel 936 will swing toward the heavier end of the I-beam a1, and the biting is getting tighter and tighter. Please refer to the attached Figure 12, so that the anti-fall performance of the anti-fall lifting head group 9 is significantly improved.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A tower crane anti-fall system, comprising an annular tower body, an annular track frame provided on the inner ring of the upper end of the annular tower body, and a plurality of cantilevered telescopic platforms for circular movement movably sleeved on the track of the annular track frame, each cantilevered telescopic platform being provided with an anti-fall hoisting end, characterized in that: The anti-fall hoisting end includes a reel, and a steel wire rope is wound on the reel, and the rope body of the steel wire rope is respectively sleeved with an anti-fall detection part and a first guide wheel fixedly mounted on the cantilever telescopic platform, and the other end of the steel wire rope is hung with an anti-fall lifting head group for preventing the I-beam from falling off and clamping; The anti-fall detection part includes a detection seat, and the detection seat cavity is sequentially arranged with a detection guide wheel group, a second guide wheel member, a third guide wheel member and an anti-fall brake end for enabling the wire rope to achieve Z-shaped movement for detection and braking to prevent falling. A controller is provided at the upper end of the detection seat cavity, and the detection guide wheel group and the anti-fall brake end are electrically connected to the controller; The anti-falling hanging head group includes a hanging head body, and two hook parts are symmetrically hinged in the cavity of the lower end of the hanging head body, and the upper ends of the two hook parts are vertically pressed against each other to open and close the two hook parts to hang the I-beam, and an anti-slip end is used to bite the top surface of the I-beam to prevent lateral sliding. A manual pushing end is laterally pressed against the top surface of the anti-slip end, and the right end of the manual pushing end extends to the outside of the right side of the hanging head body.

2. The anti-fall system for a tower crane according to claim 1, characterized in that: A detection chamber is provided in the middle of the detection seat, a first through-hole is provided on the upper left side of the detection chamber, and a second through-hole is provided on the lower right side of the detection chamber.

3. The anti-falling system for a tower crane according to claim 2, characterized in that: The detection guide wheel group includes a fourth guide wheel component, and a first detection head and a second detection head for detecting damage to the wire rope are symmetrically arranged at the upper and lower ends on the right side of the fourth guide wheel component. The rear end transmission connection of one of the guide wheels on the fourth guide wheel component is connected to a speed meter for detecting abnormal running speed of the wire rope.

4. The anti-falling system for a tower crane according to claim 3, characterized in that: The anti-fall braking end includes an anti-fall seat, and a rope groove is transversely opened on the upper end of the anti-fall seat, and a brake push groove is opened on the lower end of the anti-fall seat, and a plurality of push rod through holes are opened at intervals between the rope groove and the brake push groove, and a plurality of stud holes and a plurality of spring anti-slip holes are spaced apart on the groove wall in the middle of the upper end of the rope groove; A first brake clamping group is installed between each of the stud holes and the corresponding two spring anti-detachment holes, a second brake clamping head group is installed between the brake push groove, each push rod through-hole and the lower end of the rope groove, and a fifth guide wheel component and a sixth guide wheel component are provided at the tail of the left and right sides of the rope groove.

5. The anti-falling system for a tower crane according to claim 4, characterized in that: Each of the first brake clamping groups includes a first semi-lunar clamping block, and the left and right sides of the rear end of the first semi-lunar clamping block are provided with first springs that cooperate with the spring anti-drop sleeve holes, and the middle part of the first semi-lunar clamping block is provided with a fixing bolt for locking into the stud hole, and the arc surface of the first semi-lunar clamping block is provided with a first biting tooth; The second brake chuck assembly includes a telescoping device, and a push frame is transversely provided at the upper end of the telescoping device, and a plurality of support push rods for passing through the push rod through holes are arranged at intervals on the push frame, and a second semi-lunar clamping block is hingedly connected to the rear end of each support push rod, and a second biting tooth is provided on the arc surface of the second semi-lunar clamping block; Each of the first semi-lunar clamping blocks and each of the second semi-lunar clamping blocks are arranged in a staggered manner.

6. The anti-falling system for a tower crane according to claim 5, characterized in that: A hook movable groove is provided in the middle of the bottom surface of the hanging head body, and a lifting push groove is provided at the upper end of the hanging head body, and a pressure rod sleeve hole is provided through the middle between the hook movable groove and the lifting push groove, and the pressure rod sleeve hole is a hexagonal hole.

7. The anti-falling system for a tower crane according to claim 6, characterized in that: The two hook parts include an L-shaped hook, and the L-shaped hook is hinged in the hook movable groove, and a swing push block is laterally arranged at the upper end of the L-shaped hook, and a reset spring for automatically unfolding the L-shaped hook is sleeved between the hinge part of the L-shaped hook and the hook movable groove wall.

8. The anti-falling system for a tower crane according to claim 7, characterized in that: The anti-slip end includes a trapezoidal pressure block for abutting against the surfaces of two left-right symmetrical swinging push blocks, and an anti-slip pressure seat is longitudinally provided on the bottom surface of the trapezoidal pressure block, and a plurality of anti-slip pressure blocks are hingedly connected to the bottom surface of the anti-slip pressure seat at intervals. A pressure rod adapted to pass through the pressure rod sleeve hole is provided in the middle of the top surface of the trapezoidal pressure block, and a second spring for providing an upward thrust to the pressure rod is sleeved on the rod body of the pressure rod, and a pushing wheel is provided on the top surface of the pressure rod. The anti-slip pressure block has the same structure as the second semi-lunar clamping block.

9. The anti-falling system for a tower crane according to claim 8, characterized in that: The manual pushing end includes a slide seat, and a push wheel pressing block is provided on the slide seat. The right end of the push wheel pressing block is threadedly connected to a screw handle. The left side of the push wheel pressing block is provided with an inclined section for pushing the push wheel downward.

10. A method for operating a tower crane anti-fall system using the method of claim 9, characterized in that: The working method is as follows: During use, the reel first reels and hoists the wire rope. At this time, the wire rope will be inspected for abnormal routing and damage to the wire rope body at the detection guide wheel assembly in the anti-fall detection unit. When an abnormality is detected, the anti-fall brake end is controlled by the anti-fall head assembly to promptly engage the anti-fall brake to avoid the risk of the anti-fall head assembly falling. When the anti-fall lifting head assembly is hanging the I-beam, the manual pushing end is manually rotated to make the push wheel pressure block push the anti-slip end downward. During this process, the trapezoidal pressure block will drop to press the two hook parts together. The closed two hook parts clamp the two sides of the I-beam, and at the same time, each pushing wheel will swing and press the top surface of the I-beam to prevent the I-beam from being asymmetric when being lifted by the anti-fall lifting head assembly, and there is a risk of unilateral slippage and falling.

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