Auxiliary safety structure of tower crane boom

Abstract

The utility model discloses a tower crane boom auxiliary safety structure which comprises an adjusting mechanism, a connecting mechanism and a fixing mechanism, and the adjusting mechanism and the fixing mechanism are fixedly arranged on the bottom face of an upper chord column of each section of boom of a crane in a left-right spaced mode. The two ends of the connecting mechanism are detachably connected with the adjusting mechanism and the fixing mechanism respectively. The safety protection device can ensure the safety of operators during construction on the tower crane, and is simple in structure, safe, practical, high in working efficiency and low in cost.

Description

Technical Field

[0001] The utility model belongs to the field of construction safety, and in particular relates to an auxiliary safety structure of a tower crane boom. Background Art

[0002] When tower cranes are installed and maintained on construction sites, operators usually need to work at height. Especially when performing installation, disassembly, and maintenance work at the lifting boom, the boom is suspended tens or even hundreds of meters in the air. Operators must take adequate and reliable safety measures.

[0003] With the continuous improvement of national regulations and industry standards, as well as increasingly fierce market competition, the requirements for the structural safety and humanized design of tower cranes are becoming increasingly higher. Manufacturers generally design a safety rope system for the lifting boom of their tower crane products, for operators to wear safety belts and improve operational safety.

[0004] At present, the design form of tower crane boom safety rope on the market is mainly to design a safety rope hook on the diagonal web on the side of each boom section, pass the safety rope around the hook, and fix the safety rope at the end of the boom. However, the design of this safety rope has the problem of poor reliability of the rope hook. Since the safety rope structure focuses on the convenience of installation, it does not use a closed loop design. During the operation of the tower crane, the boom shakes greatly, the safety rope wears out greatly in this process, and there is a risk of unhooking. At the same time, the design only has one wire rope fixing position at the end of the boom. Once the wire rope fixing position fails, the entire safety rope device will completely lose its function, and the safety is not high enough. Utility Model Content

[0005] The purpose of the utility model is to provide a tower crane boom auxiliary safety structure to solve the technical problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An auxiliary safety structure for a tower crane boom comprises an adjusting mechanism, a connecting mechanism and a fixing mechanism. The adjusting mechanism and the fixing mechanism are fixedly arranged on the bottom surface of the upper chord column of each boom section of the crane at intervals on the left and right sides respectively; the two ends of the connecting mechanism are detachably connected to the adjusting mechanism and the fixing mechanism respectively.

[0008] Furthermore, the adjustment mechanism includes a mounting seat, a screw, and an ear plate; the mounting seat is arranged horizontally on the left and right, and the mounting seat is a U-shaped structure with its opening facing right. The top surface is fixedly connected to the left side of the bottom surface of the upper chord column of each boom of the crane, and a mounting hole is provided in the middle; the screw is arranged horizontally on the left and right, and its left end is connected to the mounting hole of the mounting seat; the ear plate is arranged horizontally on the left and right, and two are spaced apart in the upper and lower parts, the left parts of the opposite sides of the two ear plates are fixedly connected to the upper and lower sides of the right end of the screw, and a vertical through opening is provided on the right side of the ear plate.

[0009] Furthermore, the fixing mechanism includes a fixing pin; the fixing pin is vertically arranged, and its top surface is fixedly connected to the right side of the bottom surface of the upper chord column of each boom section of the crane, and its bottom is horizontally opened with a through socket at the front and back.

[0010] Furthermore, the connecting mechanism includes a first ring, a second ring, a steel wire rope, and a rope buckle. The left and right ends of the steel wire rope pass through the first ring and the second ring respectively and then are bent; the rope buckle respectively fixes the two ends of the steel wire rope to the steel wire rope.

[0011] Furthermore, the first sleeve is arranged between the two ear plates, and the two ear plates and the first sleeve are connected by bolts; the second sleeve is sleeved on the fixing pin.

[0012] Furthermore, the fixing mechanism also includes a cotter pin; the cotter pin is horizontally inserted into the insertion hole of the fixing pin.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The utility model is provided with an adjusting mechanism, a fixing mechanism and a connecting mechanism, and by connecting the steel wire rope of the connecting mechanism with the adjusting structure and the fixing mechanism installed on the boom of the tower crane, the operator can buckle the mounting buckle of the mounting belt worn on the body to the steel wire rope, thereby realizing protection for the operator. The steel wire rope can be straightened by the adjusting structure, and the safety is high.

[0015] 2. The utility model can be pre-installed before leaving the factory and can be used directly after being transported to the site, thereby improving installation efficiency and safety. At the same time, an independent safety mechanism is provided on each boom section to achieve multiple insurances and further improve safety.

[0016] 3. The first sleeve of the connection mechanism of the present invention is connected to the ear plate of the adjustment structure through a bolt, and the second sleeve is connected to the fixed pin through a cotter pin. While ensuring safety, it is easy to disassemble and replace, and prevents safety risks caused by wear of the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the main view of the utility model;

[0018] Figure 2It is a bottom view of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the screw of the utility model;

[0020] Figure 4 It is a structural diagram of the mounting base of the utility model;

[0021] Figure 5 It is a structural diagram of the fixing pin of the utility model;

[0022] Figure 6 It is an exploded view of the connection mechanism of the utility model;

[0023] In the accompanying drawings, 1-adjusting mechanism; 11-mounting seat; 11-mounting hole; 12-screw; 13-ear plate; 131-opening;

[0024] 2-connecting mechanism; 21-ring 1; 22-ring 2; 23-wire rope; 24-rope buckle;

[0025] 3-fixing mechanism; 31-fixing pin; 311-jack; 32-cotter pin. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in this specification are merely provided to help readers gain a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0027] like Figure 1-6 The figure shows an auxiliary safety structure for a tower crane boom, comprising an adjustment mechanism 1, a connecting mechanism, and a fixing mechanism 3. The adjustment mechanism 1 and fixing mechanism 3 are fixed to the bottom surface of the upper chord of each boom section of the crane, spaced apart on the left and right sides. The connecting mechanism is detachably connected to the adjustment mechanism 1 and fixing mechanism 3 at both ends. By buckling the safety buckle of the worker's safety belt into the connecting mechanism, the worker can be protected.

[0028] The adjusting mechanism 1 includes a mounting seat 11, a screw 12, and an ear plate 13; the mounting seat 11 is horizontally arranged left and right, and the mounting seat 11 is a U-shaped structure with its opening facing right. The top surface is fixedly connected to the left side of the bottom surface of the upper chord column of each boom of the crane, and a mounting hole 111 is provided in the middle; the screw 12 is horizontally arranged left and right, and its left end is connected to the mounting hole 111 of the mounting seat 11. A nut is pre-installed on the left side of the screw 12. The left end of the screw 12 is passed through the mounting seat 11, and then another nut is screwed in from the left end of the screw 12. The screw 12 is installed on the mounting seat 11 through the two nuts; the ear plate 13 is horizontally arranged left and right, and two are spaced apart in the upper and lower parts. The left part of the opposite side of the two ear plates 13 is fixedly connected to the upper and lower sides of the right end of the screw 12, and a vertical through opening 131 is provided on the right side of the ear plate 13.

[0029] The fixing mechanism 3 includes a fixing pin 31; the fixing pin 31 is vertically arranged, and its top surface is fixedly connected to the right side of the bottom surface of the upper chord column of each boom section of the crane, and its bottom is horizontally provided with a through hole 311.

[0030] The connecting mechanism 2 includes a ring 1 21, a ring 22, a wire rope 23, and a rope buckle 24. The left and right ends of the wire rope 23 are respectively passed through the ring 1 21 and the ring 2 22 and then bent. The two ends of the bent wire rope 23 are fitted with the left and right sides of the wire rope 23; the rope buckle 24 respectively fixes the two ends of the wire rope 23 with the left and right sides of the wire rope 23. The rope buckle 24 is an aluminum alloy pressed joint. Through the pressed joint, the two ends of the bent wire rope 23 can be fixedly connected to the left and right sides of the wire rope 23 to prevent the wire rope 23 from falling off.

[0031] The collar 1 21 is arranged between the two ear plates 13, and the two ear plates 13 and the collar 1 21 are connected by bolts. The lower end of the bolt passes through the opening 131 of the upper ear plate 13, the collar, and the opening of the lower ear plate 13 in sequence, and then the nut is screwed in from the lower end of the nut, thereby connecting the adjustment mechanism 1 and the connecting mechanism. To ensure stability and durability, before screwing in the nut, a gasket can be placed first, and then the nut can be screwed in; the collar 2 22 is sleeved on the fixing pin 31.

[0032] The fixing mechanism 3 further includes a cotter pin 32 ; the cotter pin 32 is horizontally inserted into the insertion hole 311 of the fixing pin 31 to prevent the second collar 22 from falling off.

[0033] The working mode of the utility model is:

[0034] First, weld the mounting base 11 and the fixing pin 31 to the left and right sides of the bottom surface of the upper chord column of each boom section of the crane at intervals on the left and right sides respectively; put the second collar 22 on the fixing pin 31, and insert the cotter pin 32 into the opening 131 of the fixing pin 31, and firmly install the second collar 22 on the fixing pin 31; put the first collar 21 between the two ear plates 13, and fix the two ear plates 13 and the collar with bolts; then insert the left end of the screw rod 12 into the mounting hole 111 of the mounting base 11, and tighten the wire rope 23 according to the length of the screw rod 12 entering the mounting hole 111, and finally fix the screw rod 12 and the mounting base 11 with nuts to complete the installation.

[0035] During use, the operator buckles the multiple safety buckles of the safety belt worn on the body on the steel wire rope 23 to protect the operator. When the operator needs to move to the next boom, the safety buckle is untied and buckled into the steel wire rope 23 of the next boom.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A tower crane boom auxiliary safety structure, comprising an adjustment mechanism, a connection mechanism, and a fixing mechanism, characterized in that: The adjusting mechanism and the fixing mechanism are fixedly arranged on the bottom surface of the upper chord column of each boom section of the crane at intervals on the left and right sides; the two ends of the connecting mechanism are detachably connected to the adjusting mechanism and the fixing mechanism respectively.

2. The tower crane boom auxiliary safety structure according to claim 1, characterized in that: The adjustment mechanism includes a mounting seat, a screw, and an ear plate; the mounting seat is arranged horizontally on the left and right, and the mounting seat is a U-shaped structure with its opening facing right. The top surface is fixedly connected to the left side of the bottom surface of the upper chord column of each boom of the crane, and a mounting hole is provided in the middle; the screw is arranged horizontally on the left and right, and its left end is connected to the mounting hole of the mounting seat; the ear plate is arranged horizontally on the left and right, and two are spaced apart in the upper and lower parts. The left parts of the opposite sides of the two ear plates are fixedly connected to the upper and lower sides of the right end of the screw, and a vertical through opening is provided on the right side of the ear plate.

3. The auxiliary safety structure of a tower crane boom according to claim 2, characterized in that: The fixing mechanism includes a fixing pin; the fixing pin is vertically arranged, the top surface of which is fixedly connected to the right side of the bottom surface of the upper chord column of each boom section of the crane, and the bottom of which is horizontally provided with a through-hole.

4. The tower crane boom auxiliary safety structure according to claim 3, characterized in that: The connecting mechanism includes a first ring, a second ring, a steel wire rope, and a rope buckle. The left and right ends of the steel wire rope pass through the first ring and the second ring respectively and then are bent; the rope buckle respectively fixes the two ends of the steel wire rope to the steel wire rope.

5. The tower crane boom auxiliary safety structure according to claim 4, characterized in that: The first sleeve ring is arranged between the two ear plates, and the two ear plates and the first sleeve ring are connected by bolts; the second sleeve ring is sleeved on the fixing pin.

6. The tower crane boom auxiliary safety structure according to claim 4, characterized in that: The fixing mechanism further comprises a cotter pin; the cotter pin is horizontally inserted into the insertion hole of the fixing pin.

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