CN114482595A - Method for replacing low-height awning of existing business line - Google Patents
Method for replacing low-height awning of existing business line Download PDFInfo
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- CN114482595A CN114482595A CN202111601168.4A CN202111601168A CN114482595A CN 114482595 A CN114482595 A CN 114482595A CN 202111601168 A CN202111601168 A CN 202111601168A CN 114482595 A CN114482595 A CN 114482595A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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Abstract
The application relates to the technical field of canopy replacement, in particular to a method for replacing a low-height canopy of an existing business line, which comprises the following construction steps: s1, construction preparation; s2, removing the on-site lamp; s3, adding two cross bars on two sides of the existing steel upright post to increase the overall strength of the existing steel upright post; s4, removing the sunlight plate and the purline on the top, and adding an artificial tuck net below the top for protection; s5, adding purlins and profiled steel sheets to the lower chord for protection: the lower chord is fixedly provided with a purline and is provided with a fixing mechanism for connecting the purlines; s6, removing the upper chord, the upper profiled steel sheet and the purline; s7, newly adding a chord, a purlin and a profiled steel sheet above the canopy, wherein the height of the whole canopy meets the requirement of a transfer platform pushing space. This application has the canopy that reduces original subway line and produces the intensity of interference and reduce the normal construction of construction platform and influence the effect of the normal possibility of operating of subway line to the construction of top transfer platform.
Description
Technical Field
The application relates to the technical field of canopy replacement, in particular to a method for replacing a low-height canopy of an existing business line.
Background
At present, most urban rail transit systems are fast urban public transit systems with large traffic volume for carrying commuter passengers in cities, and the urban rail transit systems are used as backbones of urban traffic in many occasions. The subway is a rapid, large-traffic and electric power traction rail transit built in cities. The train runs on a totally closed line, the line located in the central urban area is basically arranged in the underground tunnel, and the line outside the central urban area is generally arranged on a viaduct or the ground. The subway is an urban rail transit system which covers various underground and overground roadways of urban areas, is special in right of way, high in density and high in traffic volume.
Among the prior art, the junction of new and old subway line can build the transfer station, the equal a plurality of steel-pipe columns of fixedly connected with in both sides of current subway operation line, the steel-pipe column one-to-one of both sides sets up, fixed mounting has lower chord and upper chord between two steel-pipe columns of correspondence, the upper chord is located the top of lower chord, fixed mounting has several pole settings between upper chord and the lower chord, fixed mounting has a plurality of purlins on the upper chord, the top of purlin is installed the profiled steel sheet, the canopy is installed to the top of profiled steel sheet, the canopy includes the solar panel.
To the correlation technique among the above-mentioned, the inventor thinks that some subway operation lines are located the below of buildings such as bridge, and when needs are when building transfer station above these subway operation lines, the canopy of current subway operation line top can produce the interference to its top transfer platform's construction, and the normal operation of subway operation line below also can be influenced in the construction of top transfer platform simultaneously.
Disclosure of Invention
In order to reduce the intensity of interference generated by the canopy above the existing subway line to the construction of the transfer platform above the canopy and reduce the possibility that the construction of the construction platform above the canopy affects the normal operation of the existing subway operation line, the application provides a method for replacing the low-height canopy of the existing business line.
The application provides a low-height awning replacing method for an existing business line, which adopts the following technical scheme:
the method for replacing the low-height awning of the existing business line comprises the following steps:
s1, construction preparation: firstly, checking the type and distribution position of pipelines on the awning, wherein the pipelines mainly comprise illumination lines and communication lines, then communicating with a track operation unit, and adopting a temporary transition scheme to plan to arrange the illumination lines, the communication lines and the like on tie bars between the longitudinal directions of the upright posts; s2, removing the on-site lamp; s3, two cross bars are additionally arranged on two sides of the existing steel upright post, so that the overall strength of the existing steel upright post is improved; s4, dismantling a sunlight plate and a purline on the top of the awning, and adding an artificial tuck net below the awning for protection; s5, adding purlins and profiled steel sheets to the lower chord for protection: the lower chord is fixedly provided with a purline, and the lower chord is provided with a fixing mechanism for fixing the purline; s6, removing the upper chord, the upper profiled steel sheet and the purline; s7, newly adding a chord, a purlin and a profiled steel sheet above the canopy, wherein the height of the whole canopy meets the requirement of a transfer platform pushing space.
By adopting the technical scheme, the arranged fixing mechanism can enhance the connection strength between the lower chord and the purline, so that the possibility of separation between the lower chord and the purline can be reduced; therefore, the intensity of interference generated by the canopy of the original subway line on the construction of the upper transfer platform can be reduced, and the possibility that the normal construction of the construction platform influences the normal operation of the subway line is reduced.
Optionally, in S5, the fixed establishment includes multiunit coupling assembling, coupling assembling includes inserted link and fixed block, inserted link fixed connection is in the lateral wall of lower chord, fixed block fixed connection is in the lateral wall of purlin, inserting groove and the first groove of sliding have been seted up in the fixed block, inserting groove and the first groove of sliding communicate with each other, the inserted link can be pegged graft in the inner chamber of inserting groove, the inslot that slides is equipped with the gag lever post, gag lever post sliding connection is in the lateral wall of the first groove of sliding, first spacing groove has been seted up on the inserted link, the gag lever post can be pegged graft with first spacing groove and cooperate, the fixed establishment still includes and is used for carrying out driven drive assembly to the gag lever post.
Through adopting above-mentioned technical scheme, when needs are connected lower chord and purlin, at first remove the insertion rod and peg graft to the inserting groove, afterwards, under drive assembly's effect, the gag lever post removes to insert and connects to first spacing groove to can reduce the possibility of taking place the separation between insertion rod and the purlin, and then can reduce the possibility of taking place the separation between lower chord and the purlin.
Optionally, the driving assembly includes a driving rod, a second sliding groove is formed in the fixing block, the driving rod is slidably connected to a side wall of the second sliding groove, a first inclined surface is formed on one side of the driving rod close to the insertion rod, a second inclined surface is formed on one side of the driving rod away from the insertion rod, a third sliding groove is formed in the fixing block, the third sliding groove is communicated with the second sliding groove, a connecting rod is arranged in the third sliding groove, the connecting rod is slidably connected to a side wall of the third sliding groove, a third inclined surface is formed on the connecting rod, the third inclined surface can be in butt fit with the second inclined surface, a rack is fixedly connected to a side wall of the connecting rod, a first storage groove is formed in the fixing plate, side walls of two sides of the first storage groove are respectively communicated with the third sliding groove and the first sliding groove, a rotating rod is arranged in the first storage groove, one end of the rotating rod is rotatably connected to the side wall of one side of the first storage groove, which is far away from the insertion rod, the side wall of the rotating rod is fixedly connected with a gear, and the gear is meshed with the rack; the lateral wall of bull stick is equipped with the screw thread, the one end that the gag lever post kept away from the inserted bar passes through screw thread threaded connection in bull stick.
Through adopting above-mentioned technical scheme, when needs drive gag lever post remove, at first remove the grafting pole and peg graft in the inserting groove, the grafting pole can promote the actuating lever through first inclined plane afterwards and remove, afterwards, the actuating lever can promote the connecting rod through the cooperation between third inclined plane and the second inclined plane and remove, the connecting rod removes and drives the rack and removes, the rack removes and drives gear rotation, gear rotation drives the bull stick and rotates, rotate and remove through screw drive gag lever post to can drive the gag lever post and remove.
Optionally, a fourth sliding groove is formed in the fixing plate, the fourth sliding groove is communicated with the second sliding groove, a second limiting groove is formed in the insertion rod, the driving rod can be in insertion fit with the second limiting groove, a baffle is fixedly connected to the side wall of the driving rod, the baffle is slidably connected to the side wall of the fourth sliding groove, a fixing plate is fixedly connected to the inner wall of the fourth sliding groove, a first spring is arranged in the fourth sliding groove, and two ends of the first spring are fixedly connected to the inner side, opposite to the inner side, of the baffle and the fixing plate respectively.
Through adopting above-mentioned technical scheme, when the drive peg graft the pole and remove, the peg graft pole promotes the actuating lever and removes, and at this moment, the actuating lever removes and drives the baffle and removes, and the baffle removes and to compress first spring, and when the peg graft pole removed to the second spacing groove and the corresponding position of actuating lever, at this moment, the elasticity of first spring can promote the baffle and remove, and the baffle removes and can drive the actuating lever and remove to insert and connect to the second spacing groove to can strengthen the joint strength between lower chord and the purlin.
Optionally, a first protection assembly for protecting the first spring is arranged in the fourth sliding groove.
Through adopting above-mentioned technical scheme, the first protection component that sets up can protect first spring.
Optionally, the first protection assembly includes a protection rod, one end of the protection rod is fixedly connected to the side wall of the baffle, a first sliding hole is formed in the fixing plate, the protection rod is slidably connected to the inner wall of the first sliding hole, and the protection rod is sleeved with the first spring; one end of the guard bar, which is far away from the baffle, is fixedly connected with a separation blade, and the separation blade can be abutted against one side wall of the fixed plate, which is far away from the baffle.
Through adopting above-mentioned technical scheme, when first spring extension or compression, the guard bar that sets up can reduce the first spring because of taking place the possibility that the distortion damaged.
Optionally, a limiting assembly used for limiting the limiting rod is arranged in the first limiting groove.
Through adopting above-mentioned technical scheme, the spacing subassembly that sets up can carry on spacingly to the gag lever post.
Optionally, the limiting assembly comprises a limiting block, a fourth inclined plane is arranged at one end, close to the limiting rod, of the limiting block, a second storage groove is formed in the insertion rod, the second storage groove is communicated with the first limiting groove, the limiting block is connected to the side wall of the second storage groove in a sliding mode, a second spring is arranged in the second storage groove, and two ends of the second spring are fixedly connected to the side wall, away from the limiting rod, of the second storage groove and one side, away from the limiting rod, of the limiting block.
Through adopting above-mentioned technical scheme, when the gag lever post removes to be pegged graft in the first spacing groove, the gag lever post can overcome the elasticity of second spring through fourth inclined plane drive stopper and remove, when the gag lever post removes the position between the bottom lateral wall of stopper and first spacing groove to can carry on spacingly to the gag lever post, and then can reduce the gag lever post and take place the possibility of removing.
Optionally, a second protection assembly for protecting the second spring is arranged in the second storage groove.
Through adopting above-mentioned technical scheme, the second protection subassembly that sets up can protect the second spring.
Optionally, the second protection subassembly includes loop bar and slide bar, one side lateral wall that the gag lever post was kept away from in the second storage tank to the one end fixed connection of loop bar, the loop bar is close to the one end of gag lever post and has been seted up second hole and the fifth groove of sliding in proper order, the fifth groove of sliding communicates with the second hole of sliding, slide bar sliding connection slides in the lateral wall in hole in second, the one end fixedly connected with spacing piece of gag lever post is kept away from to the slide bar, spacing piece sliding connection slides in the lateral wall in groove of sliding in fifth.
By adopting the technical scheme, when the second spring is compressed or stretched, the sliding rod can slide in the inner cavity of the second sliding hole, and the limiting piece can slide in the inner cavity of the fifth sliding groove, so that the possibility of damage to the second spring due to distortion can be reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the arranged fixing mechanism can enhance the connection strength between the lower chord and the purline, so that the possibility of separation between the lower chord and the purline can be reduced; therefore, the intensity of interference generated by the canopy of the original subway line on the construction of the upper transfer platform can be reduced, and the possibility that the normal construction of the construction platform influences the normal operation of the subway line is reduced;
2. when the insertion rod is driven to move, the insertion rod pushes the driving rod to move, at the moment, the driving rod moves to drive the baffle to move, the baffle can compress the first spring when moving, when the insertion rod moves to the position, corresponding to the driving rod, of the second limiting groove, at the moment, the elastic force of the first spring can push the baffle to move, the baffle can drive the driving rod to move to be inserted into the second limiting groove, and therefore the connection strength between the lower chord and the purlin can be enhanced;
3. when the second spring takes place compression or tensile, the slide bar can slide in the inner chamber in the second hole of sliding, and spacing piece can slide in the inner chamber in the fifth groove of sliding to can reduce the possibility that the second spring damaged because of taking place the distortion.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural view of a highlighting fixture in an embodiment of the present application;
FIG. 3 is a cross-sectional view of a highlighted connection assembly in an embodiment of the present application;
FIG. 4 is a cross-sectional view of the embodiment of the present application highlighting a first storage slot;
FIG. 5 is a cross-sectional view of a highlighting stop assembly in an embodiment of the present application;
FIG. 6 is a cross-sectional view highlighting a first protective component in an embodiment of the present application.
Description of reference numerals: 1. a canopy; 11. a lower chord; 12. a purlin; 2. a fixing mechanism; 21. a connecting assembly; 211. a plug rod; 212. a fixed block; 213. inserting grooves; 214. a first sliding groove; 215. a limiting rod; 216. a first limit groove; 3. a drive assembly; 31. a drive rod; 32. a second sliding groove; 33. a first inclined plane; 34. a second inclined plane; 35. a third sliding groove; 36. a connecting rod; 37. a third bevel; 38. a rack; 39. a first storage tank; 40. a rotating rod; 41. a gear; 42. a thread; 5. a fourth sliding groove; 51. a second limit groove; 52. a baffle plate; 53. a fixing plate; 54. a first spring; 6. a first protection component; 61. a guard bar; 62. a first sliding hole; 63. a baffle plate; 7. a limiting component; 71. a limiting block; 72. a fourth slope; 73. a second storage tank; 74. a second spring; 8. a second protection component; 81. a loop bar; 82. a slide bar; 83. a second sliding hole; 84. a fifth sliding groove; 85. a limiting piece.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a method for replacing a low-height awning of an existing business line. As shown in title 1, the method comprises the following steps:
s1, construction preparation: before dismantling construction, the type and distribution position of pipelines on the awning are checked, and the pipelines mainly comprise illumination lines and communication lines; then communicating with a track operation unit, adopting a temporary transition scheme, and planning to arrange on a tie bar between the vertical directions of the upright posts; whole canopy 1 demolishs the construction and goes on in the power failure period in track operation skylight period, and the work progress plan is at 0 every day: 00-5: 00;
s2, removing the on-site lamp;
s3, adding two cross bars on two sides of the existing steel upright column to increase the overall strength of the steel upright column, and when workers perform manual operation, the workers need to add lighting lamps on site and tie safety belts;
s4, removing the sunlight plate and the purlin 12 at the top of the canopy 1, paying attention to the protection of the rail row area and the road below, manually pulling protective nets at two sides of the platform right below the removal area, and laying color stripe cloth on the protective nets, so that the possibility that tools, parts and the like fall on the ground and hit pedestrians can be reduced;
s5, adding purlins 12 to the lower chord 11 and protecting the profiled steel sheets: purlins 12 are fixedly mounted on the lower chord 11, fixing mechanisms 2 used for connecting the purlins 12 are arranged on the lower chord 11, and the arranged fixing mechanisms 2 can enhance the connecting strength between the lower chord 11 and the purlins 12, so that the possibility of separation between the lower chord 11 and the purlins 12 can be reduced;
s6, removing the upper chord, the upper profiled steel sheet and the purline 12;
s7, adding an upper chord, a purline 12 and a profiled steel sheet above the canopy 1, wherein the height of the whole canopy 1 needs to meet the requirement of a transfer platform pushing space.
As shown in fig. 2 and 3, in S5, the fixing mechanism 2 includes two sets of connecting assemblies 21, the two sets of connecting assemblies 21 are respectively disposed on the left and right sides of the purlin 12, each connecting assembly 21 includes a rectangular insertion rod 211 and a fixing block 212, the insertion rod 211 is fixedly connected to the bottom side wall of the lower chord 11; the fixing block 212 is in a cuboid shape, and the fixing block 212 is fixedly connected to the side wall of the purline 12; with reference to fig. 4, an insertion groove 213 and a first sliding groove 214 are formed in the fixed block 212, the insertion groove 213 extends along the height direction of the fixed block 212, the first sliding groove 214 extends along the length direction of the fixed block 212, the insertion groove 213 is communicated with the first sliding groove 214, and the insertion rod 211 can be inserted into the inner cavity of the insertion groove 213; a limiting rod 215 is arranged in the first sliding groove 214, the limiting rod 215 is cuboid, the limiting rod 215 is connected to the side wall of the first sliding groove 214 in a sliding manner along the length direction of the fixing block 212, a first limiting groove 216 is formed in the insertion rod 211, the first limiting groove 216 extends along the height direction of the insertion rod 211, the limiting rod 215 can be in insertion fit with the first limiting groove 216, and the fixing mechanism 2 further comprises a driving component 3 for driving the limiting rod 215; when the lower chord 11 needs to be connected with the purlin 12, the inserting rod 211 is firstly moved to be inserted into the inserting groove 213, and then, under the action of the driving assembly 3, the limiting rod 215 is moved to be inserted into the first limiting groove 216, so that the possibility of separation between the inserting rod 211 and the purlin 12 can be reduced, and the possibility of separation between the lower chord 11 and the purlin 12 can be reduced.
As shown in fig. 3 and 5, the driving assembly 3 includes a driving rod 31, the driving rod 31 is rectangular, a second sliding groove 32 is formed in the fixed block 212, the second sliding groove 32 extends along the length direction of the fixed block 212, the driving rod 31 is slidably connected to a side wall of the second sliding groove 32 along the length direction of the fixed block 212, a first inclined surface 33 is formed on one side of the driving rod 31 close to the insertion rod 211, and a second inclined surface 34 is formed on one side of the driving rod 31 far from the insertion rod 211; a third sliding groove 35 is formed in the fixing block 212, the third sliding groove 35 extends along the height direction of the fixing block 212, the third sliding groove 35 is communicated with the second sliding groove 32, a connecting rod 36 is arranged in the third sliding groove 35, the connecting rod 36 is rectangular, the connecting rod 36 is connected to the side wall of the third sliding groove 35 in a sliding manner along the height direction of the fixing block 212, a third inclined surface 37 is arranged at one end, close to the lower chord 11, of the connecting rod 36, the third inclined surface 37 can be in butt joint with the second inclined surface 34, a rack 38 is fixedly connected to the side wall of the connecting rod 36, and the rack 38 is vertically arranged; referring to fig. 4, a first storage groove 39 is formed in the fixed plate 53, the first storage groove 39 extends along the length direction of the fixed block 212, the side walls of the two sides of the first storage groove 39 are respectively communicated with the third sliding groove 35 and the first sliding groove 214, a rotating rod 40 is arranged in the first storage groove 39, the rotating rod 40 is in a cylindrical shape, one end of the rotating rod 40, which is far away from the insertion rod 211, is rotatably connected to the side wall of the first storage groove 39, which is far away from the insertion rod 211, through a bearing, a gear 41 is fixedly sleeved on the side wall of the rotating rod 40, and the gear 41 is engaged with the rack 38; the side wall of the rotating rod 40 is provided with threads 42, and one end of the limiting rod 215 far away from the insertion rod 211 is connected to the rotating rod 40 through the threads 42 of the threads 42; when the limiting rod 215 needs to be driven to move, the insertion rod 211 is firstly moved to be inserted into the insertion groove 213, then the insertion rod 211 can push the driving rod 31 to move through the first inclined surface 33, then the driving rod 31 can push the connecting rod 36 to move through the matching between the third inclined surface 37 and the second inclined surface 34, the connecting rod 36 is moved to drive the rack 38 to move, the rack 38 is moved to drive the gear 41 to rotate, the gear 41 is rotated to drive the rotating rod 40 to rotate, the rotating rod 40 is rotated to drive the limiting rod 215 to move through the thread 42, and therefore the limiting rod 215 can be driven to move.
As shown in fig. 5 and 6, a fourth sliding groove 5 is formed in the fixed block 212, the fourth sliding groove 5 extends along the length direction of the fixed block 212, the fourth sliding groove 5 is communicated with the second sliding groove 32, a second limiting groove 51 is formed in the insertion rod 211, the second limiting groove 51 extends along the length direction of the insertion rod 211, and the driving rod 31 can be inserted into and matched with the second limiting groove 51; the side wall of the driving rod 31 is fixedly connected with a baffle plate 52, the baffle plate 52 is in a cuboid shape, the baffle plate 52 is slidably connected to the side wall of the fourth sliding groove 5 along the length direction of the fixing block 212, the inner wall of the fourth sliding groove 5 is fixedly connected with a fixing plate 53, the fixing plate 53 is in a cuboid shape, a first spring 54 is arranged in the fourth sliding groove 5, the first spring 54 is horizontally arranged, and two ends of the first spring 54 are respectively fixedly connected to the opposite inner sides of the baffle plate 52 and the fixing plate 53; when the drive inserted link 211 moves, the inserted link 211 pushes the drive rod 31 to move, at this moment, the drive rod 31 moves to drive the baffle plate 52 to move, the baffle plate 52 moves to compress the first spring 54, when the inserted link 211 moves to the position corresponding to the second limit groove 51 and the drive rod 31, the combination of the figure 2 is shown, at this moment, the elastic force of the first spring 54 can push the baffle plate 52 to move, the baffle plate 52 moves to drive the drive rod 31 to move to be inserted into the second limit groove 51, and therefore the connection strength between the lower chord 11 and the purlin 12 can be enhanced.
As shown in fig. 5 and 6, a first protection assembly 6 for protecting the first spring 54 is arranged in the fourth sliding groove 5, and the first protection assembly 6 is arranged to protect the first spring 54; the first protection assembly 6 comprises a protection rod 61, the protection rod 61 is cylindrical, one end of the protection rod 61 close to the insertion rod 211 is fixedly connected to one side, away from the insertion rod 211, of the baffle plate 52, a first sliding hole 62 is formed in the fixed plate 53, the first sliding hole 62 extends along the width direction of the fixed plate 53, the protection rod 61 is slidably connected to the inner wall of the first sliding hole 62 along the width direction of the fixed plate 53, and the first spring 54 is sleeved on the protection rod 61; one end of the protective rod 61, which is far away from the baffle plate 52, is fixedly connected with a blocking piece 63, the blocking piece 63 is in a cylindrical shape, and the blocking piece 63 can abut against one side wall of the fixing plate 53, which is far away from the baffle plate 52; the provision of the guard bar 61 reduces the possibility of the first spring 54 being damaged by twisting when the first spring 54 is stretched or compressed.
As shown in fig. 5, a limiting component 7 for limiting the limiting rod 215 is arranged in the first limiting groove 216, and the limiting component 7 is capable of limiting the limiting rod 215; the limiting assembly 7 comprises a limiting block 71, the limiting block 71 is rectangular, a fourth inclined surface 72 is arranged at one end, close to the limiting rod 215, of the limiting block 71, a second storage groove 73 is formed in the insertion rod 211, the second storage groove 73 extends along the length direction of the insertion rod 211, the second storage groove 73 is communicated with the first limiting groove 216, the limiting block 71 is connected to the side wall of the second storage groove 73 in a sliding mode along the length direction of the insertion rod 211, a second spring 74 is arranged in the second storage groove 73, the second spring 74 is horizontally arranged, and two ends of the second spring 74 are fixedly connected to the side wall, away from the limiting rod 215, of the second storage groove 73 and the side, away from the limiting rod 215, of the limiting block 71 respectively; when the limiting rod 215 is movably inserted into the first limiting groove 216, the limiting rod 215 can drive the limiting block 71 to move by overcoming the elastic force of the second spring 74 through the fourth inclined surface 72, and when the limiting rod 215 moves to a position between the limiting block 71 and the bottom side wall of the first limiting groove 216, the limiting rod 215 can be limited, and the possibility of movement of the limiting rod 215 can be reduced.
As shown in fig. 5, a second protection member 8 for protecting the second spring 74 is provided in the second storage tank 73, and the second protection member 8 is provided to protect the second spring 74; the second protection component 8 comprises a loop bar 81 and a slide bar 82, the loop bar 81 and the slide bar 82 are both in a cylindrical shape, one end of the loop bar 81, which is far away from the limiting rod 215, is fixedly connected to one side wall of the second storage groove 73, which is far away from the limiting rod 215, one end of the loop bar 81, which is close to the limiting rod 215, is sequentially provided with a second sliding hole 83 and a fifth sliding groove 84, the second sliding hole 83 and the fifth sliding groove 84 both extend along the axial direction of the loop bar 81, the fifth sliding groove 84 is communicated with the second sliding hole 83, the slide bar 82 is connected to the side wall of the second sliding hole 83 in a sliding manner along the axial direction of the loop bar 81, one end of the slide bar 82, which is far away from the limiting rod 215, is fixedly connected with a limiting piece 85, the limiting piece 85 is in a cylindrical shape, and the limiting piece 85 is connected to the side wall of the fifth sliding groove 84 in a sliding manner along the axial direction of the loop bar 81; when the second spring 74 is compressed or extended, the sliding rod 82 can slide in the inner cavity of the second sliding hole 83, and the limiting piece 85 can slide in the inner cavity of the fifth sliding groove 84, so that the possibility that the second spring 74 is damaged due to twisting can be reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The method for replacing the low-height awning of the existing business line is characterized by comprising the following steps: the method comprises the following construction steps:
s1, construction preparation: firstly, checking the type and distribution position of pipelines on the awning (1), mainly comprising illumination lines and communication lines, then communicating with a track operation unit, and adopting a temporary transition scheme to plan to arrange the illumination lines, the communication lines and the like on tie bars between the longitudinal directions of the upright posts;
s2, removing the on-site lamp;
s3, two cross bars are additionally arranged on two sides of the existing steel upright post, so that the overall strength of the existing steel upright post is improved;
s4, removing the sunlight plate and the purline (12) at the top of the awning (1), and adding an artificial tuck net below the awning for protection;
s5, adding purlins (12) to the lower chord (11) and protecting the profiled steel sheet: purlines (12) are fixedly installed on the lower chord (11), and fixing mechanisms (2) used for fixing the purlines (12) are arranged on the lower chord (11);
s6, removing the upper chord, the upper profiled steel sheet and the purline (12);
s7, newly adding a top chord, a purline (12) and a profiled steel sheet above the canopy (1), wherein the height of the whole canopy (1) meets the requirement of a pushing space of a transfer platform.
2. The method for replacing a low-height awning of an existing business line as claimed in claim 1, wherein: in S5, the fixing mechanism (2) comprises a plurality of groups of connecting assemblies (21), each connecting assembly (21) comprises an inserting rod (211) and a fixing block (212), each inserting rod (211) is fixedly connected to the side wall of the corresponding lower chord (11), each fixing block (212) is fixedly connected to the side wall of the corresponding purline (12), an inserting groove (213) and a first sliding groove (214) are formed in each fixing block (212), each inserting groove (213) is communicated with the corresponding first sliding groove (214), each inserting rod (211) can be inserted into the inner cavity of each inserting groove (213), a limiting rod (215) is arranged in each first sliding groove (214), each limiting rod (215) is slidably connected to the side wall of each first sliding groove (214), each inserting rod (211) is provided with a first limiting groove (216), and each limiting rod (215) can be in inserting fit with the corresponding first limiting groove (216), the fixing mechanism (2) further comprises a driving component (3) used for driving the limiting rod (215).
3. The method for replacing a low-height awning of an existing business line as claimed in claim 2, wherein: the driving assembly (3) comprises a driving rod (31), a second sliding groove (32) is formed in the fixed block (212), the driving rod (31) is connected to the side wall of the second sliding groove (32) in a sliding manner, a first inclined surface (33) is arranged on one side, close to the insertion rod (211), of the driving rod (31), a second inclined surface (34) is arranged on one side, far away from the insertion rod (211), of the driving rod (31), a third sliding groove (35) is formed in the fixed block (212), the third sliding groove (35) is communicated with the second sliding groove (32), a connecting rod (36) is arranged in the third sliding groove (35), the connecting rod (36) is connected to the side wall of the third sliding groove (35) in a sliding manner, a third inclined surface (37) is arranged on the connecting rod (36), the third inclined surface (37) can be in butt fit with the second inclined surface (34), and a rack (38) is fixedly connected to the side wall of the connecting rod (36), a first storage groove (39) is formed in the fixed plate (53), the side walls of two sides of the first storage groove (39) are respectively communicated with the third sliding groove (35) and the first sliding groove (214), a rotating rod (40) is arranged in the first storage groove (39), one end of the rotating rod (40) is rotatably connected to the side wall, far away from the insertion rod (211), of the first storage groove (39), a gear (41) is fixedly connected to the side wall of the rotating rod (40), and the gear (41) is meshed with the rack (38); the lateral wall of bull stick (40) is equipped with screw thread (42), the one end that peg graft pole (211) is kept away from in gag lever post (215) passes through screw thread (42) threaded connection in bull stick (40).
4. The method for replacing a low-height awning of an existing business line as claimed in claim 3, wherein: the utility model discloses a sliding device, including fixed plate (53), the fixed plate (53) is seted up fourth groove (5) that slides, fourth groove (5) that slides is linked together with second groove (32) that slides, second spacing groove (51) have been seted up on peg graft pole (211), actuating lever (31) can be pegged graft the cooperation with second spacing groove (51), the lateral wall fixedly connected with baffle (52) of actuating lever (31), baffle (52) sliding connection is in the lateral wall of fourth groove (5) that slides, the inner wall fixedly connected with fixed plate (53) of fourth groove (5) that slides, be equipped with first spring (54) in fourth groove (5) that slides, the both ends difference fixed connection of first spring (54) is in the relative inboard of baffle (52) and fixed plate (53).
5. The method for replacing a low-height awning of an existing business line as claimed in claim 4, wherein: and a first protection assembly (6) used for protecting the first spring (54) is arranged in the fourth sliding groove (5).
6. The method for replacing a low-height awning of an existing business line as claimed in claim 5, wherein: the first protection assembly (6) comprises a protection rod (61), one end of the protection rod (61) is fixedly connected to the side wall of the baffle plate (52), a first sliding hole (62) is formed in the fixing plate (53), the protection rod (61) is connected to the inner wall of the first sliding hole (62) in a sliding mode, and the protection rod (61) is sleeved with the first spring (54); one end, far away from the baffle (52), of the protection rod (61) is fixedly connected with a blocking piece (63), and the blocking piece (63) can abut against one side wall, far away from the baffle (52), of the fixing plate (53).
7. The method for replacing a low-height awning of an existing business line as claimed in claim 2, wherein: a limiting component (7) used for limiting the limiting rod (215) is arranged in the first limiting groove (216).
8. The method for replacing a low-height awning of an existing business line as claimed in claim 7, wherein: the limiting assembly (7) comprises a limiting block (71), a fourth inclined surface (72) is arranged at one end, close to the limiting rod (215), of the limiting block (71), a second storage groove (73) is formed in the insertion rod (211), the second storage groove (73) is communicated with the first limiting groove (216), the limiting block (71) is connected to the side wall of the second storage groove (73) in a sliding mode, a second spring (74) is arranged in the second storage groove (73), and two ends of the second spring (74) are fixedly connected to the side wall, away from the limiting rod (215), of the second storage groove (73) and the side wall, away from the limiting rod (215), of the limiting block (71) respectively.
9. The method for replacing a low-height awning of an existing business line as claimed in claim 8, wherein: a second protection component (8) for protecting the second spring (74) is arranged in the second storage groove (73).
10. The method for replacing a low-height awning of an existing business line as claimed in claim 9, wherein: second protection component (8) include loop bar (81) and slide bar (82), one side lateral wall of gag lever post (215) is kept away from in second storage tank (73) to the one end fixed connection of loop bar (81), second slide hole (83) and fifth slide groove (84) have been seted up in proper order to the one end that loop bar (81) are close to gag lever post (215), fifth slide groove (84) and second slide hole (83) are linked together, slide bar (82) sliding connection is in the lateral wall of second slide hole (83), the one end fixedly connected with spacing piece (85) of gag lever post (215) are kept away from in slide bar (82), spacing piece (85) sliding connection is in the lateral wall of fifth slide groove (84).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111601168.4A CN114482595B (en) | 2021-12-24 | 2021-12-24 | Method for replacing awning with low height of existing business line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111601168.4A CN114482595B (en) | 2021-12-24 | 2021-12-24 | Method for replacing awning with low height of existing business line |
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| CN114482595A true CN114482595A (en) | 2022-05-13 |
| CN114482595B CN114482595B (en) | 2023-04-28 |
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| CN212295776U (en) * | 2020-04-24 | 2021-01-05 | 周进均 | Assembled protection canopy |
| CN213952287U (en) * | 2020-12-10 | 2021-08-13 | 中铁五局集团建筑工程有限责任公司 | Truss vehicle device for reconstruction and extension construction of existing overhead operation subway station |
| US20210363776A1 (en) * | 2016-01-26 | 2021-11-25 | Weatherhaven Global Resources Ltd. | Rapidly deployable modular shelter system |
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|---|---|---|---|---|
| US20020148188A1 (en) * | 2001-03-19 | 2002-10-17 | John Rizzotto | Rapid assembly steel framing |
| CN201865321U (en) * | 2010-11-23 | 2011-06-15 | 中铁建工集团有限公司 | Multifunctional movable protecting and isolating operating platform |
| CN203383520U (en) * | 2013-04-12 | 2014-01-08 | 中铁四局集团有限公司 | Deep foundation pit canopy |
| US20210363776A1 (en) * | 2016-01-26 | 2021-11-25 | Weatherhaven Global Resources Ltd. | Rapidly deployable modular shelter system |
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| CN212295776U (en) * | 2020-04-24 | 2021-01-05 | 周进均 | Assembled protection canopy |
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| Publication number | Publication date |
|---|---|
| CN114482595B (en) | 2023-04-28 |
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