CN104150398B - Circular duct erecting device and method - Google Patents
Circular duct erecting device and method Download PDFInfo
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- CN104150398B CN104150398B CN201410338474.7A CN201410338474A CN104150398B CN 104150398 B CN104150398 B CN 104150398B CN 201410338474 A CN201410338474 A CN 201410338474A CN 104150398 B CN104150398 B CN 104150398B
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- 239000000203 mixture Substances 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 10
- 239000003550 marker Substances 0.000 claims description 24
- 239000000725 suspension Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 6
- 230000000875 corresponding Effects 0.000 claims description 6
- 230000003028 elevating Effects 0.000 claims description 6
- 238000002372 labelling Methods 0.000 claims description 3
- 230000002459 sustained Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
The present invention relates to building installation engineering technical field, be specifically related to a kind of circular duct erecting device and method.A kind of circular duct erecting device, it is characterised in that: it includes lifting body, drilling equipment and airduct bracket；Described lifting body includes base dolly, lever lowering or hoisting gear and altitude mixture control lowering or hoisting gear, described drilling equipment includes electric drill bracket and electric impact drill, described airduct bracket includes that airduct supporting plate, roller seat, master roller and drive shaft, described airduct bracket also include four Anti-fall roller bench.This device or method can hole the carrying out of flooring-safe, hold up and install circular duct, decreases the potential safety hazard of indoor upper-air operation, improves work efficiency and work quality.
Description
Technical field
The present invention relates to building installation engineering technical field, be specifically related to a kind of circular duct erecting device and method.
Background technology
The airduct installing engineering of the most many interior of buildings is that (airduct is generally divided into rectangular air duct and circular duct to a part critically important in electromechanical installation, and the installation difficulty of circular duct is bigger；Airduct herein unless otherwise indicated refers both to circular duct), airduct is normally at top, house, distance ground distance is higher, whole airduct is made up of multistage, installs airduct and is raised to certain altitude firstly the need of by airduct, typically by first airduct is positioned over scaffold, near its setting height(from bottom), then by several workman manual elevation to accurate setting height(from bottom), make two sections of airducts dock mutually, now airduct is fixed the connection between two sections of airducts.The installation of next section of airduct is carried out after installing, movable Scaffold to new airduct installation site, repeat aforesaid operations, this mounting means is constructor's man-made assembly and manual elevation combines, and its efficiency of construction is low, and the coordinative construction personnel of needs are many.
In addition to airduct being raised to certain altitude, the fixing of airduct generally uses lightgage steel joist suspension bracket.The installation of lightgage steel joist suspension bracket needs to hole on the ceiling, boring needs staff's hands to lift heavy electric hammer drill to stand in and carry out on herringbone ladder or scaffold, not only labor intensity is big, work high above the ground is dangerous, and the crown of people is just scattered down by dust when holing, dust is also easily accessible eyes and the respiratory tract of people, and it has a strong impact on the healthy of people and work safety, and efficiency of construction is low.
Summary of the invention
For above-mentioned technical problem, it is an object of the invention to provide a kind of circular duct erecting device and method, this device or method can hole the carrying out of flooring-safe, hold up and install circular duct, decreases the potential safety hazard of indoor upper-air operation, improves work efficiency and work quality.
For achieving the above object, the technical solution used in the present invention is:
A kind of circular duct erecting device, it is characterised in that: it includes lifting body, drilling equipment and airduct bracket；
Described lifting body includes that base dolly, lever lowering or hoisting gear and altitude mixture control lowering or hoisting gear, described base dolly are mainly made up of vehicle frame and roller；Described lever lowering or hoisting gear includes supporting sleeve, fulcrum bearing, pedal lever and a riser, described supporting sleeve is vertically fixed on vehicle frame center, and the lower end edge of supporting sleeve axially offers bar hole, described fulcrum bearing is fixed on the side of supporting sleeve on vehicle frame, the middle part of described pedal lever is hinged with fulcrum bearing, one end of pedal lever is inserted in supporting sleeve bar hole, the other end of pedal lever is provided with pedal, described riser is inserted in supporting sleeve, the lower end playing riser falls on pedal lever, play the lower end of riser upper end and altitude mixture control lowering or hoisting gear to fix and be connected；
Described drilling equipment includes that electric drill bracket and electric impact drill, described electric impact drill are fixedly mounted on electric drill bracket, when holing to ceiling: electric drill bracket is fixedly mounted on the upper end of altitude mixture control lowering or hoisting gear；
Described airduct bracket includes airduct supporting plate, roller seat, master roller and drive shaft, described roller seat is fixedly mounted on airduct supporting plate, the master roller of multiple horizontal alignment is installed on roller seat, a drive shaft it is additionally provided with in the middle part of roller seat one side, described each master roller is designed with the first sprocket wheel near one end of drive shaft, described drive shaft is provided with the second sprocket wheel and the 3rd sprocket wheel, described all first sprocket wheels and the second sprocket wheel and is connected by the first chain, and described 3rd sprocket wheel is provided with the second chain；When holding up and airduct be installed: airduct supporting plate is fixedly mounted on the upper end of altitude mixture control lowering or hoisting gear；
Described airduct bracket also includes four Anti-fall roller bench, four Anti-fall roller bench one group two-by-two, is respectively symmetrically and is arranged in roller seat and is provided with side and the opposite side of drive shaft；Described Anti-fall roller bench includes square bar slide rail, " 7 " shape vertical rod, supported rod erecting and side roller cylinder, two square casings it are cased with on described square bar slide rail, square casing is bolted with square bar slide rail, one end of described square bar slide rail is fixed on the side of roller seat, the lower end of described " 7 " shape vertical rod and supported rod erecting is separately fixed at away from the square casing with close roller seat, the upper end of " 7 " shape vertical rod and supported rod erecting is hinged with the two ends of side roller cylinder respectively, and described " 7 " shape vertical rod is higher than supported rod erecting.
Described altitude mixture control lowering or hoisting gear is crossing type lifting apparatus.
Described crossing type lifting apparatus includes base plate and top board, described base plate and top board layout symmetrical above and below, and connecting between base plate and top board has two rhombus expansion brackets being arranged symmetrically with, and the lower end of rhombus expansion bracket is provided with driving means；Described driving means includes two connecting shafts and a screw mandrel, the fixing connection of bearing pin that the two ends of described each connecting shaft are corresponding with two rhombus expansion bracket height respectively, and two connecting shafts are positioned at sustained height, the middle part of one of them connecting shaft is provided with bearing block, the middle part of another connecting shaft is provided with a nut, one end of described screw mandrel is screwed in nut, and the other end of screw mandrel is connected with bearing block, and is provided with crank.
Described altitude mixture control lowering or hoisting gear includes a hydraulic cylinder elevating lever, described hydraulic cylinder elevating lever be respectively arranged at two ends with top board and base plate up and down.
The drill bit of described electric impact drill is provided with dust arrester.
Described dust arrester is rubber bellows, and described rubber bellows entangles whole drill bit.
Described cover top surface center is provided with connection sleeve pipe, and the center of described electric drill bracket and airduct supporting plate lower surface is designed with intubating；During connection, by described intubate tightly be inserted in connection sleeve pipe in.
Circular duct erecting device also includes the line laser marker bracket of two "T"-shaped structures, and the cross bar of "T"-shaped structure is uniformly provided with multiple line laser marker；Described vehicle frame is I-shaped steel structure frame, and the two ends of the tie-beam in the middle of described I-shaped steel structure frame are provided with slot；The montant of the line laser marker bracket of the "T"-shaped structure of said two is respectively inserted in two corresponding slots.
A kind of circular duct installation method, it is characterised in that comprise the following steps:
Step one: first finish indoor airduct grade level line according to drawing, further according to distance between two line laser marker brackets on the width adjusting circular duct erecting device vehicle frame of lightgage steel joist suspension bracket, make the distance between the line laser marker on two line laser marker brackets identical with the width of lightgage steel joist suspension bracket；Again circular duct erecting device is pushed away and be put into the precalculated position that airduct is installed；Finally open line laser marker and carry out ceiling cultellation, and with carrying acuminous stock to carry out labelling at cultellation；
Step 2: drilling equipment is installed on lifting body；First lifting altitude regulation lowering or hoisting gear, until dust arrester touches ceiling, starts electric impact drill, and foot is stepped on the pedal of lever lowering or hoisting gear and carried out bore operation, is progressively drilled all of hole；
Step 3: install expansion bolt in each boring, be first equipped with suspension rod nut in the upper end of the suspension rod of lightgage steel joist suspension bracket, and be connected with expansion bolt, further according to the airduct grade level line finished, determines the absolute altitude of termination under suspension rod；
Step 4: dispose multiple lifting bodies according to the length of airduct, is replaced with the drilling equipment on lifting body airduct bracket, and places airduct on airduct bracket；Lifting altitude regulation lowering or hoisting gear, until airduct reaches absolute altitude, is loaded on suspension bracket pressure pin and is held by airduct fixing；
Step 5: install next airduct according to step 4, and connect joint between these two airducts, until all of airduct installs, last test blast is installed.
Step 6: base dolly is intercepted by partition wall in step 4 or five, airduct docks through partition wall cavity or airduct when finely tuning construction, can rotate by pulling the second chain-driving master roller, make airduct move on airduct bracket.
The invention has the beneficial effects as follows:
1) assembly of the invention or method can hole the carrying out of flooring-safe (when implementing boring, operating the stroke that hoists short, laborsaving), hold up and install airduct, decreases the potential safety hazard of indoor upper-air operation, improves work efficiency and work quality；Install Anti-fall roller bench on airduct bracket additional, be possible to prevent circular duct to drop；The present invention is further adapted to rectangular air duct except applicable circular duct；
2) the altitude mixture control lowering or hoisting gear of the present invention uses scissor frame for movement, makes lifting hoist higher stability；
3) use the connected mode of socket joint between airduct supporting plate and the top board of the present invention, be convenient for changing and keep in repair airduct bracket；
4) drill bit of the present invention is provided with dust arrester, and in boring procedure, dust arrester is in sealing contact with indoor ceiling all the time, and dust will not descend slowly and lightly, and makes work progress free from dust；
5) the airduct bracket in the present invention uses chain wheel drive, when base dolly is constructed through partition wall cavity or airduct docking fine setting by partition wall obstruct, airduct, can rotate by pulling the second chain-driving master roller, make airduct mobile regulation on airduct bracket；
6) present invention installs line laser marker on base dolly additional, is conveniently marked boring point.
Accompanying drawing explanation
Fig. 1 is the structural representation of the lifting body in the present invention with drilling equipment.
Fig. 2 is A portion enlarged diagram in Fig. 1.
Fig. 3 is B portion enlarged diagram in Fig. 1.
Fig. 4 is C portion enlarged diagram in Fig. 1.
Fig. 5 is the structural representation (without Anti-fall roller bench in figure) of the lifting body in the present invention with airduct bracket.
Fig. 6 is D portion enlarged diagram in Fig. 5.
Fig. 7 is that the present invention holds up circular duct example schematic.
Fig. 8 is E portion enlarged diagram in Fig. 7.
In figure: 1-vehicle frame；2-roller；3-supporting sleeve；4-fulcrum bearing；5-pedal lever；6-line laser marker bracket；7-line laser marker；8-plays riser；9-base plate；10-connects sleeve pipe；11-top board；12-connecting shaft；13-rhombus expansion bracket；14-bearing pin；15-bearing block；16-screw mandrel；17-crank；18-electric drill bracket；19-electric impact drill；20-dust arrester；21-airduct supporting plate；22-roller seat；23-master roller；24-the first sprocket wheel；25-drive shaft；26-the second sprocket wheel；27-the first chain；28-the 3rd sprocket wheel；29-the second chain；30-square bar slide rail；31-" 7 " shape vertical rod；32-side roller cylinder；33-square casing；35-circular duct；36-supported rod erecting.
Detailed description of the invention
In order to be more fully understood that the present invention, below in conjunction with embodiment and accompanying drawing, technical scheme is described further.
A kind of circular duct erecting device, it includes lifting body, drilling equipment and airduct bracket；
Described lifting body includes that base dolly, lever lowering or hoisting gear and altitude mixture control lowering or hoisting gear, described base dolly are mainly made up of vehicle frame 1 and roller 2；Described lever lowering or hoisting gear includes supporting sleeve 3, fulcrum bearing 4, pedal lever 5 and a riser 8, described supporting sleeve 3 is vertically fixed on vehicle frame 1 center, and the lower end edge of supporting sleeve 3 axially offers bar hole (i.e. having the bar hole running through before and after's tube wall on supporting sleeve 3), described fulcrum bearing 4 is fixed on the side of supporting sleeve 3 on vehicle frame 1, the middle part of described pedal lever 5 is hinged with fulcrum bearing 4, one end of pedal lever 5 is inserted in supporting sleeve 3 bar hole, the other end of pedal lever 5 is provided with pedal, described riser 8 is inserted in supporting sleeve 3, the lower end playing riser 8 falls on pedal lever 5, play that riser 8 upper end and the lower end of altitude mixture control lowering or hoisting gear are fixing is connected (riser 8 is longer than supporting sleeve 3)；
Described drilling equipment includes electric drill bracket 18 and electric impact drill 19, described electric impact drill 19 is fixedly mounted on electric drill bracket 18 that (described electric drill bracket 18 main body is one piece of rectangular steel plates, its top is provided with a pair L-type and supports, the termination supported is provided with fixture, it is used for fixing electric impact drill 19), when holing to ceiling: electric drill bracket 18 is fixedly mounted on the upper end (drill bit of electric impact drill 19 is towards ceiling) of altitude mixture control lowering or hoisting gear；
Described airduct bracket includes airduct supporting plate 21, roller seat 22, master roller 23 and drive shaft 25, described roller seat 22 is fixedly mounted on airduct supporting plate 21, the master roller 23 of multiple horizontal alignment is installed on roller seat 22, a drive shaft 25 it is additionally provided with in the middle part of roller seat 22 one side, described each master roller 23 is designed with the first sprocket wheel 24 near one end of drive shaft 25, described drive shaft 25 is provided with the second sprocket wheel 26 and the 3rd sprocket wheel 28, described all first sprocket wheels 24 are connected by the first chain 27 with the second sprocket wheel 26, described 3rd sprocket wheel 28 is provided with the upper end of the second chain 29 described in the second chain 29(and is located at the 3rd sprocket wheel 28, lower end is between one meter to two meters of ground of distance)；When holding up and airduct be installed: airduct supporting plate 21 is fixedly mounted on the upper end of altitude mixture control lowering or hoisting gear；
Described airduct bracket also includes four Anti-fall roller bench, four Anti-fall roller bench one group two-by-two, are respectively symmetrically and are arranged in roller seat 22 and are provided with side and the opposite side (two Anti-fall roller bench of the same side lay respectively at the two ends of this side) of drive shaft 25；Described Anti-fall roller bench includes square bar slide rail 30, " 7 " shape vertical rod 31, supported rod erecting 36 and side roller cylinder 32, two square casings 33 it are cased with on described square bar slide rail 30, square casing 33 is bolted with square bar slide rail 30, one end of described square bar slide rail 30 is fixed on the side of roller seat 22, the lower end of described " 7 " shape vertical rod 31 and supported rod erecting 36 is separately fixed at away from the square casing 33 with close roller seat 22, the upper end of " 7 " shape vertical rod 31 and supported rod erecting 36 is hinged with the two ends of side roller cylinder 32 respectively, described " 7 " shape vertical rod 31 is higher than supported rod erecting 36, and (i.e. the length of " 7 " shape vertical rod 31 is more than the length of supported rod erecting 36, length less than supported rod erecting 36 plus side roller 32).
Described altitude mixture control lowering or hoisting gear is crossing type lifting apparatus (it includes that electric pushrod drives crossing type lifting apparatus, Driven by Hydraulic Cylinder crossing type lifting apparatus etc.).
Described crossing type lifting apparatus includes base plate 9 and top board 11, described base plate 9 and top board 11 layout symmetrical above and below, connecting between base plate 9 and top board 11 has base plate 9 upper surface described in two rhombus expansion bracket 13(being arranged symmetrically with to be provided with two pieces of gussets, circular hole and strip hole is had on gusset, the lower end of rhombus expansion bracket 13 is connected with circular hole and strip hole by bearing pin), the lower end of rhombus expansion bracket 13 is provided with driving means；Described driving means includes two connecting shafts 12 and a screw mandrel 16, the fixing connection of bearing pin 14 that the two ends of described each connecting shaft 12 are the most corresponding with two rhombus expansion brackets 13 respectively, and two connecting shafts 12 are positioned at sustained height, the middle part of one of them connecting shaft 12 is provided with bearing block 15, the middle part of another connecting shaft 12 is provided with a nut, one end of described screw mandrel 16 is screwed in nut, and the other end of screw mandrel 16 is connected with bearing block 15, and is provided with (rotary shaft bearing 15) crank 17.
Described altitude mixture control lowering or hoisting gear includes a hydraulic cylinder elevating lever, described hydraulic cylinder elevating lever be respectively arranged at two ends with top board 11 and base plate 9 up and down, described top board 11 and base plate 9 respectively with airduct supporting plate 21(or electric drill bracket 18) and play that riser 8 is fixing is connected (center that described riser 8 is welded on base plate 9).
The drill bit of described electric impact drill 19 is provided with dust arrester 20.
Described dust arrester 20 is rubber bellows, and described rubber bellows entangles whole drill bit.
Described top board 11 upper surface center is provided with connection sleeve pipe 10, and the center of described electric drill bracket 18 and airduct supporting plate 21 lower surface is designed with intubating；When (electric drill bracket 18 or airduct supporting plate 21 and top board 11) is connected, by described intubate tightly be inserted in connection sleeve pipe 10 in.
Circular duct erecting device also includes the line laser marker bracket 6 of two "T"-shaped structures, and the cross bar of "T"-shaped structure is uniformly provided with multiple line laser marker 7 (along its length)；Described vehicle frame 1 is I-shaped steel structure frame, and the two ends of the tie-beam in the middle of described I-shaped steel structure frame are provided with slot；The montant of the line laser marker bracket 6 of the "T"-shaped structure of said two is respectively inserted in two corresponding slots.
A kind of circular duct installation method, comprises the following steps:
Step one: first finish indoor airduct grade level line according to drawing, further according to distance between two line laser marker brackets 6 on the width adjusting circular duct erecting device vehicle frame 1 of lightgage steel joist suspension bracket, make the distance between the line laser marker 7 on two line laser marker brackets 6 identical with the width of lightgage steel joist suspension bracket；Again circular duct erecting device is pushed away and be put into the precalculated position that airduct is installed；Finally open line laser marker 7 and carry out ceiling cultellation, and with carrying acuminous stock to carry out labelling at cultellation；
Step 2: drilling equipment is installed on lifting body；First lifting altitude regulation lowering or hoisting gear (rotates crank 17, two, the left and right of rhombus expansion bracket is close to each other to angle point, angle point i.e. can be located remotely from each other by upper and lower two, the jacking to object can be realized), until dust arrester 20 touches ceiling, start electric impact drill 19, foot is stepped on the pedal of lever lowering or hoisting gear and is carried out bore operation (foot-treadle, with fulcrum bearing 4 as fulcrum in the middle part of pedal lever 5, the riser 8 in pedal lever 5 front end jack-up supporting sleeve 3), progressively it is drilled all of hole；
Step 3: install expansion bolt in each boring, be first equipped with suspension rod nut in the upper end of the suspension rod of lightgage steel joist suspension bracket, and be connected with expansion bolt, further according to the airduct grade level line finished, determines the absolute altitude of termination under suspension rod；
Step 4: dispose multiple lifting bodies according to the length of airduct, is replaced with the drilling equipment on lifting body airduct bracket, and places airduct on airduct bracket；Lifting altitude regulation lowering or hoisting gear, until airduct reaches absolute altitude, holds fixing loading onto suspension bracket pressure pin by airduct；
Step 5: install next airduct according to step 4, and connect joint between these two airducts, until all of airduct installs, last test blast is installed；
Step 6: base dolly is intercepted by partition wall in step 4 or five, airduct docks through partition wall cavity or airduct when finely tuning construction, master roller 23 can be driven to rotate by pulling the second chain 29, make airduct move on airduct bracket.
The Application Example being only the present invention described above, the interest field that certainly can not limit the present invention with this, therefore change according to the equivalence that scope of the present invention patent is made, still belong to protection scope of the present invention.
Claims (9)
1. a circular duct erecting device, it is characterised in that: it includes lifting body, drilling equipment and airduct bracket；
Described lifting body includes base dolly, lever lowering or hoisting gear and altitude mixture control lowering or hoisting gear, and described base dolly is mainly made up of vehicle frame (1) and roller (2)；Described lever lowering or hoisting gear includes supporting sleeve (3), fulcrum bearing (4), pedal lever (5) and a riser (8), described supporting sleeve (3) is vertically fixed on vehicle frame (1) center, and the lower end edge of supporting sleeve (3) axially offers bar hole, described fulcrum bearing (4) is fixed on the side of the upper supporting sleeve (3) of vehicle frame (1), the middle part of described pedal lever (5) is hinged with fulcrum bearing (4), one end of pedal lever (5) is inserted in supporting sleeve (3) bar hole, the other end of pedal lever (5) is provided with pedal, described riser (8) is inserted in supporting sleeve (3), the lower end playing riser (8) falls on pedal lever (5), play the lower end of riser (8) upper end and altitude mixture control lowering or hoisting gear to fix and be connected；
Described drilling equipment includes electric drill bracket (18) and electric impact drill (19), and described electric impact drill (19) is fixedly mounted on electric drill bracket (18), when holing to ceiling: electric drill bracket (18) is fixedly mounted on the upper end of altitude mixture control lowering or hoisting gear；
Described airduct bracket includes airduct supporting plate (21), roller seat (22), master roller (23) and drive shaft (25), described roller seat (22) is fixedly mounted on airduct supporting plate (21), the master roller (23) of multiple horizontal alignment is installed on roller seat (22), a drive shaft (25) it is additionally provided with in the middle part of roller seat (22) one side, each master roller (23) is designed with the first sprocket wheel (24) near one end of drive shaft (25), described drive shaft (25) is provided with the second sprocket wheel (26) and the 3rd sprocket wheel (28), all first sprocket wheels (24) are connected by the first chain (27) with the second sprocket wheel (26), described 3rd sprocket wheel (28) is provided with the second chain (29)；When holding up and airduct be installed: airduct supporting plate (21) is fixedly mounted on the upper end of altitude mixture control lowering or hoisting gear；
Described airduct bracket also includes four Anti-fall roller bench, four Anti-fall roller bench one group two-by-two, is respectively symmetrically and is arranged in roller seat (22) and is provided with side and the opposite side of drive shaft (25)；Described Anti-fall roller bench includes square bar slide rail (30), " 7 " shape vertical rod (31), supported rod erecting (36) and side roller cylinder (32), two square casings (33) it are cased with on described square bar slide rail (30), square casing (33) is bolted with square bar slide rail (30), one end of described square bar slide rail (30) is fixed on the side of roller seat (22), the lower end of described " 7 " shape vertical rod (31) and supported rod erecting (36) is separately fixed at away from the square casing (33) with close roller seat (22), the upper end of " 7 " shape vertical rod (31) and supported rod erecting (36) is hinged with the two ends of side roller cylinder (32) respectively, described " 7 " shape vertical rod (31) are higher than supported rod erecting (36).
Circular duct erecting device the most according to claim 1, it is characterised in that: described altitude mixture control lowering or hoisting gear is crossing type lifting apparatus.
Circular duct erecting device the most according to claim 2, it is characterized in that: described crossing type lifting apparatus includes base plate (9) and top board (11), described base plate (9) and top board (11) layout symmetrical above and below, connecting between base plate (9) and top board (11) and have two rhombus expansion brackets (13) being arranged symmetrically with, the lower end of rhombus expansion bracket (13) is provided with driving means；Described driving means includes two connecting shafts (12) and a screw mandrel (16), the fixing connection of bearing pin (14) that the two ends of each connecting shaft (12) are the most corresponding with two rhombus expansion brackets (13) respectively, and two connecting shafts (12) are positioned at sustained height, the middle part of one of them connecting shaft (12) is provided with bearing block (15), the middle part of another connecting shaft (12) is provided with a nut, one end of described screw mandrel (16) is screwed in nut, the other end of screw mandrel (16) is connected with bearing block (15), and is provided with crank (17).
Circular duct erecting device the most according to claim 1, it is characterised in that: described altitude mixture control lowering or hoisting gear includes a hydraulic cylinder elevating lever, described hydraulic cylinder elevating lever be respectively arranged at two ends with top board (11) and base plate (9) up and down.
5. according to the circular duct erecting device described in claim 3 or 4, it is characterised in that: the drill bit of described electric impact drill (19) is provided with dust arrester (20).
Circular duct erecting device the most according to claim 5, it is characterised in that: described dust arrester (20) is rubber bellows, and described rubber bellows entangles whole drill bit.
Circular duct erecting device the most according to claim 5, it is characterised in that: described top board (11) upper surface center is provided with connection sleeve pipe (10), and the center of described electric drill bracket (18) and airduct supporting plate (21) lower surface is designed with intubating；During connection, by described intubate tightly be inserted in connection sleeve pipe (10).
Circular duct erecting device the most according to claim 1, it is characterised in that: it also includes the line laser marker bracket (6) of two "T"-shaped structures, and the cross bar of "T"-shaped structure is uniformly provided with multiple line laser marker (7)；Described vehicle frame (1) is I-shaped steel structure frame, and the two ends of the tie-beam in the middle of described I-shaped steel structure frame are provided with slot；The montant of the line laser marker bracket (6) of the "T"-shaped structure of said two is respectively inserted in two corresponding slots.
9. a circular duct installation method, it is characterised in that comprise the following steps:
Step one: first finish indoor airduct grade level line according to drawing, further according to the distance between upper two the line laser marker brackets (6) of width adjusting circular duct erecting device vehicle frame (1) of lightgage steel joist suspension bracket, make the distance between the line laser marker (7) on two line laser marker brackets (6) identical with the width of lightgage steel joist suspension bracket；Again circular duct erecting device is pushed away and be put into the precalculated position that airduct is installed；Finally open line laser marker (7) and carry out ceiling cultellation, and with carrying acuminous stock to carry out labelling at cultellation；
Step 2: drilling equipment is installed on lifting body；First lifting altitude regulation lowering or hoisting gear, until dust arrester (20) touches ceiling, starts electric impact drill (19), and foot is stepped on the pedal of lever lowering or hoisting gear and carried out bore operation, is progressively drilled all of hole；
Step 3: install expansion bolt in each boring, be first equipped with suspension rod nut in the upper end of the suspension rod of lightgage steel joist suspension bracket, and be connected with expansion bolt, further according to the airduct grade level line finished, determines the absolute altitude of termination under suspension rod；
Step 4: dispose multiple lifting bodies according to the length of airduct, is replaced with the drilling equipment on lifting body airduct bracket, and places airduct on airduct bracket；Lifting altitude regulation lowering or hoisting gear, until airduct reaches absolute altitude, is loaded on suspension bracket pressure pin and is held by airduct fixing；
Step 5: install next airduct according to step 4, and connect joint between these two airducts, until all of airduct installs, last test blast is installed；
Step 6: base dolly is intercepted by partition wall in step 4 or five, airduct docks through partition wall cavity or airduct when finely tuning construction, master roller (23) can be driven to rotate by pulling the second chain (29), make airduct move on airduct bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410338474.7A CN104150398B (en) | 2014-07-16 | Circular duct erecting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410338474.7A CN104150398B (en) | 2014-07-16 | Circular duct erecting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104150398A CN104150398A (en) | 2014-11-19 |
| CN104150398B true CN104150398B (en) | 2016-11-30 |
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