CN109695459B - Segment lifting tool and application method thereof - Google Patents
Segment lifting tool and application method thereof Download PDFInfo
- Publication number
- CN109695459B CN109695459B CN201811492789.1A CN201811492789A CN109695459B CN 109695459 B CN109695459 B CN 109695459B CN 201811492789 A CN201811492789 A CN 201811492789A CN 109695459 B CN109695459 B CN 109695459B
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Connection Of Plates (AREA)
Abstract
The utility model provides a duct piece hoisting tool and a use method thereof, wherein the duct piece hoisting tool comprises the following components: the connecting mechanism comprises a main beam, a first positioning component and a second positioning component, and the lifting pin is fixed at the top of the main beam; the first positioning component and the second positioning component are respectively arranged at two ends of the main beam; sequentially penetrating the rod part of a first bolt into a first bolt hole end on the intrados of the duct piece; and enabling a second bolt to sequentially penetrate through the second positioning assembly and the second bolt hole end on the intrados of the duct piece, penetrate out of the second bolt hole end on the side surface of the duct piece, and then are fastened with a nut in a threaded manner so as to connect the duct piece with the second positioning assembly. According to the utility model, after the hoisting hole is damaged, additional perforation is not needed on the pipe piece, and the pipe piece and the lifting pin are fixed and spliced, so that the working efficiency is improved, and the cost is saved.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a duct piece hoisting tool and a using method thereof.
Background
With the rapid development of urban subway construction, shield construction is widely applied and popularized due to the technical advantages of high speed, high quality, small interference, safety, environmental protection and the like, and lining ring segments serve as main components of a formed tunnel to play an important role in shield construction. The transportation and the assembly of the pipe piece are realized through the lifting pin screwed into the lifting hole, so that the threaded pipe embedded part in the lifting hole, which bears the dead weight and dynamic load when the pipe piece is lifted or assembled, is used as an important stress member, and not only is higher in structural strength required, but also enough bond force is formed with concrete.
Referring to fig. 1, a hoisting hole 10 is prefabricated in the middle of a segment 1, a first bolt hole 11 and a second bolt hole 12 for splicing the segment 1 are prefabricated on two opposite sides of the hoisting hole 10, a plurality of splicing holes are formed at two ends of the segment 1, and two ends of the first bolt hole 11 and the second bolt hole 12 are respectively located on an intrados 13 of the segment 1 and a side 14 of the segment 1.
The embedded part has a lot of slipping accidents in construction, and the phenomenon of 'tooth sweeping' of part of the embedded part screw teeth occurs mostly because the grabbing head is not screwed in place or is loosened. After the phenomenon, the pipe piece cannot be normally used, the embedded part needs to be repaired and can be continuously used after reaching the set strength, and sometimes the pipe piece is scrapped.
The utility model discloses a device for hoisting reinforced concrete pipe pieces, which comprises a hoisting head, wherein one end of the hoisting head is provided with a template for connecting the pipe pieces, a plurality of connecting holes are distributed on the template, and the template welded with the hoisting head is fixedly connected with the pipe pieces through the connecting holes by penetrating expansion bolts, so that the pipe pieces are hoisted.
The method has the advantages that the structure is simple, the operation is convenient, holes are formed in the duct piece in advance, when the inner cambered surface of the duct piece is erected by the template, the distances between the expansion bolt holes in the middle and the edge holes and the cambered surface of the duct piece are unequal, the bottom of the template is not provided with a bearing member, the middle of the template is easy to bend, and the assembly quality of the duct piece is further affected.
Disclosure of Invention
In view of the above, the utility model provides a safe and reliable pipe piece hoisting tool which does not need to be repaired, has a stable structure and is convenient to install, and a use method, and solves the technical problems that the construction cost is increased, the construction efficiency is reduced and the pipe piece assembling quality is not standard because the existing pipe piece hoisting hole cannot be used after the damaged pipe piece is damaged or the damaged hoisting hole is required to be repaired.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a section of jurisdiction lifting device, the both sides of section of jurisdiction are prefabricated to have first bolt hole and the second bolt hole of relative setting, first bolt hole with the both ends of second bolt hole are located respectively on the intrados of section of jurisdiction and the side of section of jurisdiction, lifting device includes: the connecting mechanism is used for connecting the lifting pin with the buckling head of the segment erector and connecting the lifting pin with the segment, wherein:
the connecting mechanism comprises a main beam, a first positioning assembly and a second positioning assembly, and the top of the main beam is fixed with the lifting pin; the first positioning component and the second positioning component are respectively arranged at two ends of the main beam; sequentially penetrating the rod part of a first bolt into a first bolt hole end on the intrados of the duct piece; and enabling a second bolt to sequentially penetrate through the second positioning assembly and the second bolt hole end on the intrados of the duct piece, penetrate out of the second bolt hole end on the side surface of the duct piece, and then are fastened with a nut in a threaded manner so as to connect the duct piece with the second positioning assembly.
In the embodiment of the utility model, the main beam comprises two opposite vertical plates, a connecting part is fixed between the middle parts of the two vertical plates, and the lifting pin is fixed on the connecting part.
In the embodiment of the utility model, the first positioning component comprises a front plate and a rear plate which are oppositely arranged, the distance between the front plate and the middle part of the main beam is smaller than that between the rear plate and the middle part of the main beam, the front plate and the rear plate are respectively provided with a front perforation and a rear perforation, the rod parts of the first bolts sequentially penetrate through the front plate holes and the rear plate holes, and a limiting part is arranged between the front plate and the rear plate to limit the head parts of the first bolts to be positioned between the rear plate and the front plate.
In the embodiment of the utility model, the limiting part comprises two clamping plates and a limiting plate which are oppositely arranged, the two clamping plates are respectively arranged between the front plate and the rear plate, one side of each of the two clamping plates is fixed with the rear plate, a clamping groove for inserting the limiting plate is formed between the other side of each of the two clamping plates and the front plate, and the bottom end of the limiting plate abuts against the upper surface of the first bolt.
In the embodiment of the utility model, the second positioning assembly comprises a first positioning plate and a second positioning plate, the first positioning plate is fixed between the two vertical plates, the first positioning plate is obliquely arranged relative to the two vertical plates, and the second positioning plate is arranged at the tail end of the two vertical plates and rotates relative to the main beam.
In the embodiment of the utility model, the front plate and the rear plate are fixed between the two vertical plates and are obliquely arranged relative to the two vertical plates, the oblique directions of the front plate and the rear plate are the same as those of the first bolt holes, the first positioning plate is obliquely arranged relative to the two vertical plates, and the oblique directions of the first positioning plate and the second bolt holes are the same.
In the embodiment of the utility model, the opposite sides of the main beam are respectively provided with a supporting frame, the supporting frames are propped against the intrados of the duct piece, the supporting frames and the vertical plates of the main beam define a rectangular space, and the supporting frames are rotatably connected to the vertical plates of the main beam.
In the embodiment of the utility model, the first bolt and the second bolt are bent bolts with arc-shaped rod parts, the first bolt is matched with the first bolt hole in a penetrating way, and the second bolt is matched with the second bolt hole in a penetrating way.
The utility model further provides a use method of the duct piece hoisting tool, which comprises the following steps:
s1: providing a duct piece lifting tool according to any one of claims 1 to 9;
s2: placing the hoisting tool on the inner cambered surface of the segment to be spliced, and enabling a first bolt to penetrate through the first positioning assembly and the first bolt hole; a second bolt penetrates through the second positioning assembly and the second bolt hole and is screwed and fastened with a nut;
s3, conveying the segments to be spliced to a splicing area, adjusting the position of a splicing machine to enable the buckle head of the splicing machine to be connected with the lifting pin, and conveying the segments to be spliced to a designated position by the splicing machine to splice with the preceding segments;
s4: after the splicing is completed, the buckle head of the splicing machine is separated from the lifting pin, the first bolt and the second bolt are removed to separate the lifting tool from the duct piece, the first bolt hole and the adjacent preface duct piece are fixed at the corresponding position by the bolt, and the second bolt hole and the first bolt hole of the next duct piece to be spliced are fixed by the bolt.
The utility model adopts the technical proposal, which has the following beneficial effects:
(1) According to the connecting mechanism, the first positioning component and the positioning component are respectively connected with the existing first bolt hole and second bolt hole of the pipe piece, so that after the hoisting hole of the pipe piece is damaged, additional perforation on the pipe piece is not needed, the pipe piece and the lifting pin are not needed to be reworked, the pipe piece and the lifting pin are fixed, the pipe piece is spliced, the working efficiency is improved, and the cost is saved.
(2) The first positioning component and the second positioning component are arranged between the two vertical plates of the main beam, so that the stability of connection between the first positioning component and the main beam and the stability of connection between the second positioning component and the main beam are improved; the arrangement of the second positioning plate is beneficial to improving the connection stability of the second positioning assembly and the duct piece; the support frame is arranged to be favorable for preventing the pipe piece from unfixed position and swinging left and right in the hoisting process, and the pipe piece assembling quality is affected.
Drawings
Fig. 1 is a schematic structural view of a prior art segment.
Fig. 2 is a schematic three-dimensional structure of the pipe hoisting tool according to the present utility model.
Fig. 3 is a schematic top view of the pipe hoisting tool of the present utility model.
Fig. 4 is a schematic structural view of a first bolt of the present utility model.
Fig. 5 is a schematic structural view of a second bolt of the present utility model.
The correspondence of the reference numerals with the components is as follows:
segment 1; a lifting hole 10; a first bolt hole 11; a second bolt hole 12; an intrados surface 13; a side 14; a lifting pin 2; a connection mechanism 3; a main beam 31; a vertical plate 311; a connection portion 312; a reinforcing portion 313; a first positioning assembly 32; a front plate 321; a rear plate 322; a second positioning assembly 33; a first positioning plate 331; a second positioning plate 332; a connector 333; a rotation shaft 334; a first bolt 34; an elongated rib 341; a grip 3411; a second bolt 35; a linear screw portion 351; a stopper 36; a card 361; a limit plate 362; a handle 363; and a support frame 37.
Detailed Description
In order to facilitate the understanding of the present utility model, the following description is provided with reference to the drawings and examples.
The utility model provides a pipe piece hoisting tool which comprises a lifting pin 2 used for being connected with a buckle head of a pipe piece splicing machine and a connecting mechanism 3 used for connecting the lifting pin 2 with the pipe piece 1. The connecting mechanism 3 comprises a main beam 31, a first positioning component 32 and a second positioning component 33, and the top of the main beam 31 is fixed with the lifting pin 2; the first positioning component 32 and the second positioning component 33 are respectively arranged at two ends of the main beam 31, so that the rod part of the first bolt 34 sequentially penetrates through the first positioning component 32 and the first bolt hole end on the intrados 13 of the duct piece 1; and a second bolt 35 sequentially penetrates through the second positioning assembly 33 and the second bolt hole end on the intrados 13 of the segment 1, penetrates out of the second bolt hole end of the side surface 14 of the segment 1, and is then fastened with a nut in a threaded manner so as to fix the segment 1 and the second positioning assembly 33.
The connecting mechanism 3 is connected with the first bolt hole 11 and the second bolt hole 12 prefabricated by the duct piece 1 through the first positioning component 32 and the positioning component 33 respectively, so that after the hoisting hole 10 of the duct piece 1 is damaged, additional perforation on the duct piece 1 is not needed, fixation of the duct piece 1 and the lifting pin 2 and splicing of the duct piece can be realized without repairing the duct piece 1, the working efficiency is improved, and the cost is saved.
In this embodiment of the present utility model, the main beam 31 includes two opposite vertical plates 311, a connection portion 312 is fixed between the middle portions of the two vertical plates 311, and the suspension pin 2 is fixed on the connection portion 312. The lifting pin 2 is formed by processing a common lifting pin after being screwed into an end through cutting threads, and preferably, the lifting pin 2 is welded and fixed with the main beam 31, and the bottom end of the lifting pin 2 is aligned to the lifting hole 10 so as to ensure that the pipe piece 1 is kept in a horizontal state in the lifting process; reinforcing parts 313 are fixed to both sides of the suspension pin 2, and the reinforcing parts 313 are fixed to the connecting parts 312.
As a preferred embodiment of the present utility model, the first positioning component 32 includes a front plate 321 and a rear plate 322 that are disposed opposite to each other, the front plate 321 and the rear plate 322 are fixed between the two vertical plates 311, the distance between the front plate 321 and the middle of the main beam 31 is smaller than the distance between the rear plate 322 and the middle of the main beam 31, front through holes and rear through holes are respectively formed in the front plate 321 and the rear plate 322, the front plate 321 and the rear plate 322 are disposed obliquely with respect to the vertical plates 311, and the oblique directions of the front plate 321 and the rear plate 322 are the same as the oblique directions of the first bolt holes 11, so that the first bolts 34 can smoothly penetrate into the front plate holes, the rear plate holes and the first bolt holes 11.
The rod portion of the first bolt 34 sequentially penetrates through the front plate hole, the rear plate hole and the first bolt hole end on the intrados 13 of the segment 1 to connect the segment 1 with the first bolt 34, in this embodiment of the present utility model, the length of the first bolt 34 is smaller than that of the first bolt hole 11, and the first bolt 34 penetrates through the first bolt hole 11 and does not penetrate out of the first bolt hole 11, so as to prevent the splicing of the segment 1 and the preceding segment from being affected by the overlong rod portion end of the first bolt 34.
Preferably, the head of the first bolt 34 is smaller than the hole diameter of the front through hole and larger than the hole diameter of the rear through hole, the head of the first bolt 34 is limited between the front plate hole and the rear plate hole after passing through the front plate hole, and a limiting part 36 is arranged between the front plate 321 and the rear plate 322 in order to prevent the head of the first bolt 34 from retracting into the front plate hole and being separated from the first positioning component 32.
The limiting portion 36 includes two opposite clamping plates 361 and a limiting plate 362, the two clamping plates 361 are respectively disposed between the front plate 321 and the rear plate 322, one side of the two clamping plates 361 is fixed to the rear plate 322, a clamping groove for inserting the limiting plate 362 is defined between the other side of the two clamping plates 361 and the front plate 321, and the bottom end of the limiting plate 362 abuts against the upper surface of the first bolt 34. Preferably, a handle 363 is provided at the top end of the limiting plate 362 to facilitate the removal of the limiting plate 362 from the clamping groove when the lifting tool is removed.
The second positioning assembly 33 includes a first positioning plate 331 and a second positioning plate 332, the first positioning plate 331 is fixed between the two vertical plates 311, the first positioning plate 331 is obliquely arranged relative to the two vertical plates 311, and preferably, the oblique direction of the first positioning plate is the same as the oblique direction of the second bolt hole, so that the second bolt 35 can smoothly penetrate into the first positioning plate hole, the second positioning plate hole and the second bolt hole 12; the first positioning plate 331 is fixed to the second vertical plate 311 by a connecting member 333, and the connection stability of the vertical plate 311 and the first positioning plate 331 can be increased by the arrangement of the connecting member 333. The second positioning plate 332 is hinged to the end of the second vertical plate 311 and rotates relative to the main beam 31, specifically, a rotating shaft 334 is disposed between the second vertical plates 311, the second positioning plate 332 is fixed to the rotating shaft 334, and the second positioning plate 332 is attached to the side face of the duct piece 1.
In a preferred embodiment of the present utility model, the support frames 37 are respectively disposed on two opposite sides of the main beam 31, and the support frames 37 and the vertical plates 311 of the main beam 31 define a rectangular space. Preferably, the supporting frame 37 is rotatably connected to the vertical plate 311 of the main beam 31, so as to conveniently adjust the fitting degree of the supporting frame 37 and the intrados 13, so that the supporting frame 37 abuts against the intrados 13 of the duct piece 1, and is convenient for positioning the duct piece 1 during lifting. In the embodiment of the present utility model, the supporting frame 37 is connected with the main beam 31 through bolts; the support frame 37 has a certain strength.
In the embodiment of the present utility model, the first bolt 34 and the second bolt 35 are curved bolts with arc rod portions, the first bolt 34 is inserted through the first bolt hole 11, the second bolt 35 is inserted through the second bolt hole 12, and the end of the rod portion of the second bolt 35 is a straight threaded portion 351 with external threads formed so as to be in threaded connection with a nut. Preferably, an elongated rib 341 is further fixed to the first bolt 34, and the elongated rib 341 is fixed to the head of the first bolt 34 so as to facilitate the first bolt 34 to be pulled out from between the front plate 321 and the rear plate 322 when the lifting tool is removed, and preferably, a holding portion 3411 is formed at the end of the elongated rib 341. Preferably, gaskets are respectively inserted into the first bolt 34 and the second bolt 35, and the outer diameters of the gaskets are respectively larger than the head sizes of the first bolt 34 and the second bolt 35.
The structure of the pipe piece lifting tool is specifically described above, and the use method of the pipe piece lifting tool is described below.
S1: determining the segment assembly sequence;
specifically, analyzing specific point positions of the segments to be spliced according to the segment types and splicing requirements, and determining the splicing sequence of the segments so as to ensure the accuracy of the segment splicing time and the splicing position;
s2: providing the duct piece hoisting tool;
s3: placing the hoisting tool on the inner cambered surface of the segment to be spliced, and enabling a first bolt to penetrate through the first positioning assembly and the first bolt hole; a second bolt penetrates through the second positioning assembly and the second bolt hole and is screwed and fastened with a nut; specifically, the method comprises the following steps:
s31: after the segment of the current sequence is about to be assembled in place, erecting a main beam 31 at the central axis position of the segment 1 to be assembled, requiring the same side of a first positioning component 32 and a first bolt hole 11, and the same side of a second positioning component 33 and a second bolt hole 12 to meet the splicing sequence of the segment 1, wherein the lifting head of a lifting pin 2 is upwards aligned with a lifting hole 10 to be placed;
s32: passing a first bolt 34 through the first positioning assembly 32 and the first bolt hole 11; specifically, the hole site of the first positioning component 32 is aligned with the first bolt hole 11, preferably, the first bolt 34 is abutted against the inner plane of the first bolt hole 11, so that the first bolt 34 passes through the front plate hole, the rear plate hole and the first bolt hole 11, and when the head of the first bolt 34 is abutted against the rear plate 322, the first bolt 34 is inserted into the limiting plate 362, so that the first bolt 34 cannot be separated from the front plate hole;
s33: a second bolt 35 is arranged through the second positioning component 33 and the duct piece 1 to fasten the duct piece 1 and the second positioning component 33 in a connecting and fastening way;
specifically, the locating hole of the first locating plate 331 is aligned with the second bolt hole 12, preferably, and abuts against the inner plane of the second bolt hole 12; rotating the second positioning plate 332 to align with the end of the second bolt hole on the side surface of the duct piece 1, so that the second bolt 35 penetrates through the first positioning plate 331, the second bolt hole end and the second positioning plate 332 until the straight threaded connection part 351 is completely penetrated out and then is screwed by a nut, and the connection and the fastening of the second positioning assembly 35 and the duct piece 1 are ensured;
s34: the supporting frame 37 is spread and horizontally placed on the intrados 13 of the duct piece 1, and whether the supporting frame 37 is tightly attached to the intrados 13 of the duct piece 1 is checked, so that point contact is avoided;
s4, conveying the segment 1 to be spliced to a splicing area, adjusting the position of a splicing machine to enable the buckle head of the splicing machine to be connected with the lifting pin 2, and conveying the segment 1 to be spliced to a designated position by the splicing machine to splice with the preceding segment;
specifically, the segment 1 to be spliced is sent to an splicing area by a segment feeding machine, the position of the splicing machine is adjusted to enable the buckle head of the splicing machine to hook the hoisting head of the lifting pin 2, the segment 1 is slowly lifted to the left and right sides of the splicing machine, the pressure plates contact the supporting frames 37, the segment 1 is continuously slowly lifted until the segment 1 is completely fastened and locked, and at the moment, the splicing machine tries to rotate for a certain angle to judge whether the segment 1 is stable or not;
the splicing step comprises the following steps: after the pipe piece 1 is confirmed to be locked, assembling the pipe piece 1 to a designated position and aligning with the splicing hole position of the adjacent preface pipe piece 1, extending other cylinders except the pushing cylinders corresponding to the second bolt holes 12 to fix the pipe piece 1, rapidly penetrating bolts into the splicing holes except the first bolt holes 11 and the second bolt holes 12, and screwing the bolts in the splicing holes by using a pneumatic wrench;
s5: after splicing is completed, the buckle head of the splicing machine is separated from the lifting pin 2, the first bolt 34 and the second bolt 35 are removed to separate the lifting tool from the duct piece 1, the positions of the first bolt hole 12 and the adjacent preceding duct piece 1 are fixed by bolts, and the second bolt hole 12 is used as the preceding duct piece 1 of the duct piece 1 to be spliced and the first bolt hole 11 of the duct piece 1 to be spliced are fixed by bolts.
The present utility model has been described in detail with reference to the drawings and embodiments, and one skilled in the art can make various modifications to the utility model based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the utility model, which is defined by the appended claims.
Claims (8)
1. The utility model provides a section of jurisdiction lifting device, the both sides of section of jurisdiction are prefabricated to have first bolt hole and the second bolt hole of relative setting, first bolt hole with the both ends of second bolt hole are located respectively on the intrados of section of jurisdiction and the side of section of jurisdiction, its characterized in that, lifting device includes: the connecting mechanism is used for connecting the lifting pin with the buckling head of the segment erector and connecting the lifting pin with the segment, wherein:
the connecting mechanism comprises a main beam, a first positioning assembly and a second positioning assembly, and the top of the main beam is fixed with the lifting pin; the first positioning component and the second positioning component are respectively arranged at two ends of the main beam; sequentially penetrating the rod part of a first bolt into a first bolt hole end on the intrados of the duct piece; sequentially penetrating a second bolt through a second bolt hole end on the intrados of the duct piece and a second bolt hole end on the side face of the duct piece, and then screwing and fastening the duct piece and the second positioning assembly through a nut after penetrating out of the second bolt hole end on the side face of the duct piece;
the first locating component comprises a front plate and a rear plate which are oppositely arranged, the distance between the front plate and the middle part of the main beam is smaller than that between the rear plate and the middle part of the main beam, front through holes and rear through holes are respectively formed in the front plate and the rear plate, the rod parts of the first bolts sequentially penetrate through the front plate holes and the rear plate holes, and a limiting part is arranged between the front plate and the rear plate to limit the head parts of the first bolts to be positioned between the rear plate and the front plate.
2. The duct piece lifting tool according to claim 1, wherein the main beam comprises two opposite vertical plates, a connecting portion is fixed between the middle portions of the two vertical plates, and the lifting pin is fixed on the connecting portion.
3. The duct piece lifting tool according to claim 2, wherein the limiting portion comprises two clamping plates and a limiting plate which are oppositely arranged, the two clamping plates are respectively arranged between the front plate and the rear plate, one side of each of the two clamping plates is fixed with the rear plate, a clamping groove for inserting the limiting plate is formed between the other side of each of the two clamping plates and the front plate, and the bottom end of the limiting plate abuts against the upper surface of the first bolt.
4. The pipe hoisting tool according to claim 2, wherein the second positioning assembly comprises a first positioning plate and a second positioning plate, the first positioning plate is fixed between the two vertical plates, the first positioning plate is obliquely arranged relative to the two vertical plates, and the second positioning plate is arranged at the tail end of the two vertical plates and rotates relative to the main beam.
5. The pipe hoisting tool according to claim 3, wherein the front plate and the rear plate are fixed between the two vertical plates and are obliquely arranged relative to the two vertical plates, the oblique directions of the front plate and the rear plate are the same as those of the first bolt holes, the first positioning plate is obliquely arranged relative to the two vertical plates, and the oblique directions of the first positioning plate are the same as those of the second bolt holes.
6. The duct piece lifting tool according to claim 1, wherein supporting frames are respectively arranged on two opposite sides of the main beam, the supporting frames are propped against the intrados of the duct piece, rectangular spaces are defined by the supporting frames and the vertical plates of the main beam, and the supporting frames are rotatably connected to the vertical plates of the main beam.
7. The segment lifting tool according to claim 1, wherein the first bolt and the second bolt are bent bolts with arc-shaped rod portions, the first bolt is penetrated through the first bolt hole in a matching manner, and the second bolt is penetrated through the second bolt hole in a matching manner.
8. The application method of the duct piece hoisting tool is characterized by comprising the following steps of:
s1: providing a duct piece lifting tool according to any one of claims 1 to 7;
s2: placing the hoisting tool on the inner cambered surface of the segment to be spliced, and enabling a first bolt to penetrate through the first positioning assembly and the first bolt hole; a second bolt penetrates through the second positioning assembly and the second bolt hole and is screwed and fastened with a nut;
s3, conveying the segments to be spliced to a splicing area, adjusting the position of a splicing machine to enable the buckle head of the splicing machine to be connected with the lifting pin, and conveying the segments to be spliced to a designated position by the splicing machine to splice with the preceding segments;
s4: after the splicing is completed, the buckle head of the splicing machine is separated from the lifting pin, the first bolt and the second bolt are removed to separate the lifting tool from the duct piece, the first bolt hole and the adjacent preface duct piece are fixed at the corresponding position by the bolt, and the second bolt hole and the first bolt hole of the next duct piece to be spliced are fixed by the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811492789.1A CN109695459B (en) | 2018-12-07 | 2018-12-07 | Segment lifting tool and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811492789.1A CN109695459B (en) | 2018-12-07 | 2018-12-07 | Segment lifting tool and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109695459A CN109695459A (en) | 2019-04-30 |
| CN109695459B true CN109695459B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811492789.1A Active CN109695459B (en) | 2018-12-07 | 2018-12-07 | Segment lifting tool and application method thereof |
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| CN (1) | CN109695459B (en) |
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