CN219195680U - Hanging bracket for bridge construction - Google Patents

Abstract

The application discloses gallows is used in bridge construction belongs to the technical field of gallows, and it including the roof that is located the bridge top, set up in subaerial bottom plate and set up in the hanging flower basket between roof, the bottom plate, the roof with be provided with many guide ropes between the bottom plate, be provided with the stand pipe on the hanging flower basket, the guide rope passes the stand pipe and with the stand pipe cooperation of sliding, rotate on the hanging flower basket and install the traction roller, around being equipped with the haulage rope on the traction roller, the haulage rope keep away from the tip of traction roller with roof fixed connection, just be provided with on the hanging flower basket and be used for driving the rotatory rotating assembly of traction roller. The effect that this application has the stability that improves the hanging flower basket and remove.

Description

Hanging bracket for bridge construction

Technical Field

The application relates to the technical field of hanging frames, in particular to a hanging frame for bridge construction.

Background

Bridge is a structure which is generally erected on rivers, lakes and seas and can smoothly pass vehicles, pedestrians and the like. In the construction process of bridges, operators are required to perform high-altitude operation in many places, and often the operators use a hanging bracket as auxiliary construction work, so that the constructors can stand on the hanging bracket to perform high-altitude operation.

In the related art, chinese patent publication No. CN211420861U discloses a hanging bracket for bridge construction, which comprises a supporting table and a hanging bracket, wherein two windlass are fixedly arranged at the top of the supporting table, two supporting frames are arranged on the front surface of the supporting table, the top ends of the supporting frames are fixedly connected with gears, chains are connected on the gears in a transmission manner, one end of each chain is connected with each windlass, the other end of each chain is connected with a hanging ring, the hanging ring is fixedly arranged on the upper part of the hanging bracket, and a spring is fixedly arranged in the middle of the hanging bracket; the front middle part of the supporting table is provided with a rotating seat A, the surface of the rotating seat A is fixedly connected with an L-shaped windproof component, the right side of the windproof component is provided with a rotating handle, the lower part of the windproof component is provided with a windproof frame, a sliding rail is arranged in the windproof frame, a sliding block is arranged in the windproof frame, and the middle part of the sliding block is hinged with a spring; the handle is installed on the top of the back of the supporting table, two rotating seats B are respectively installed on two side surfaces, the rotating seats B are provided with locking mechanisms, connecting rods are fixedly installed on the surfaces of the rotating seats B, and universal wheels are installed at the bottoms of the connecting rods.

In view of the above-mentioned related art, the inventor believes that although an operator can use a wind-proof frame to move a hanging basket in a vertical direction to perform wind-proof treatment, in order to ensure stability of the hanging basket at the bottom of a bridge, the length of the wind-proof frame is close to the length of the bridge, and in a construction site, the wind-proof frame is difficult to install and use, and when the length of the wind-proof frame is smaller than the length of the bridge, a constructor stands on the hanging basket to construct the bottom of the bridge at a high risk.

Disclosure of Invention

In order to improve the stability that the hanging flower basket removed, this application provides a gallows for bridge construction.

The application provides a gallows for bridge construction adopts following technical scheme:

the utility model provides a gallows is used in bridge construction, including the roof that is located the bridge top, set up in subaerial bottom plate and set up in hanging flower basket between roof, the bottom plate, the roof with be provided with many guide ropes between the bottom plate, be provided with the stand pipe on the hanging flower basket, the guide rope passes the stand pipe and with the cooperation of sliding of stand pipe, rotate on the hanging flower basket and install the traction roller, be equipped with the haulage rope on the traction roller around being equipped with, the haulage rope keep away from the tip of traction roller with roof fixed connection, just be provided with on the hanging flower basket and be used for the drive the rotatory rotating assembly of traction roller.

Through adopting above-mentioned technical scheme, operating personnel passes the stand pipe with the stand rope on the roof earlier, operating personnel will pass stand pipe stand rope and bottom plate fixed connection again, operating personnel makes the stand rope keep stretching state, the cooperation of stand rope and stand pipe is favorable to guaranteeing on the one hand that the hanging flower basket removes along the length direction to the stand rope, and the cooperation of stand rope and stand pipe on the other hand is favorable to improving the stability that the hanging flower basket removed, operating personnel starts rotating assembly, rotating assembly makes the traction roller rotate, the traction roller rotates and receive and releases the traction rope, thereby make things convenient for operating personnel to adjust the height of hanging flower basket.

Preferably, the dwang is installed at the equal rotation in roof both ends, the fixed cover in dwang both ends is equipped with the wind-up roll, offer on the bottom plate and be used for passing the guiding hole of guiding rope, guiding rope keep away from the tip of bottom plate with wind-up roll fixed connection, be provided with on the bottom plate and be used for fixing guiding rope's fixed subassembly, be provided with on the roof and be used for the drive dwang synchronous rotation's drive assembly.

Through adopting above-mentioned technical scheme, operating personnel makes the guiding rope on the wind-up roll pass guiding hole, stand pipe in proper order, and operating personnel utilizes fixed subassembly to fix guiding rope and bottom plate, and then operating personnel utilizes drive assembly to make dwang synchronous rotation, and dwang rotation drives the wind-up roll synchronous rotation, and the wind-up roll rotates and makes guiding rope tighten in step to reduce the swing range of hanging flower basket in the removal in-process.

Preferably, the driving assembly comprises a first double-headed motor arranged on the top plate, a connecting rod coaxially and fixedly connected to the output shaft of the first double-headed motor, a first bevel gear fixedly sleeved on the connecting rod, and a second bevel gear fixedly sleeved on the rotating rod, wherein the first bevel gear and the second bevel gear are meshed with each other.

Through adopting above-mentioned technical scheme, operating personnel starts first double-end motor, and the output shaft of first double-end motor rotates and drives the connecting rod and rotate, and the connecting rod rotates and drives first bevel gear and rotate, and first bevel gear rotates and drives second bevel gear and rotate, and second bevel gear rotates and drives the dwang and rotate, and the dwang is rotatory to make the wind-up roll at dwang both ends synchronous rotation to make the direction rope tighten.

Preferably, the fixing assembly comprises a threaded sleeve rotatably mounted on the bottom plate and a threaded rod fixedly connected to the end of the guide rope, and the threaded rod is in threaded fit with the threaded sleeve.

Through adopting above-mentioned technical scheme, the cooperation of screw thread sleeve and threaded rod is favorable to strengthening the joint strength of direction rope and bottom plate, and screw thread sleeve's rotation is connected, makes things convenient for operating personnel to connect screw thread sleeve and threaded rod.

Preferably, a positioning plate is arranged on the top plate, an electric push rod is arranged on the positioning plate, and a piston rod of the electric push rod penetrates through the positioning plate and is fixedly connected with the top plate.

Through adopting above-mentioned technical scheme, operating personnel fixes the locating plate at the bridge top, and operating personnel starts electric putter, and electric putter's piston rod promotes the bottom plate and removes to make things convenient for the distance between operating personnel adjustment hanging flower basket and the bridge lateral wall, be favorable to avoiding the barrier on the bridge lateral wall.

Preferably, a fixed sleeve is arranged on the positioning plate, a moving rod is arranged in the fixed sleeve in a sliding way, and the end part of the moving rod extending out of the fixed sleeve is fixedly connected with the top plate.

Through adopting above-mentioned technical scheme, the fixed sleeve is favorable to auxiliary stay roof with the setting of movable rod to improve the stability of roof.

Preferably, the rotating assembly comprises a second double-head motor arranged on the hanging basket, a connecting sleeve coaxially and fixedly connected to an output shaft of the second double-head motor and a limiting rod penetrating through the connecting sleeve, a limiting rod is fixedly connected to the limiting rod, a traction roller is sleeved on the limiting rod, a first limiting groove for sliding fit of the limiting rod is formed in the inner side wall of the traction roller, and a second limiting groove for sliding fit of the limiting rod is formed in the inner side wall of the connecting sleeve.

Through adopting above-mentioned technical scheme, operating personnel start the second double-head motor, and second double-head motor output shaft rotates and drives the connecting sleeve and rotate, and the connecting sleeve passes through the cooperation drive gag lever post of second spacing groove and spacing and rotates, and the gag lever post passes through the cooperation drive traction roller rotation of spacing and first spacing groove, and the traction roller rotates and drives the haulage rope and remove to make things convenient for operating personnel to adjust the hanging flower basket height.

Preferably, the bottom surface of hanging flower basket has been seted up and has been used for holding the holding tank of traction roller, set up on the interior top surface of holding tank and be used for passing through the through-hole of haulage rope, the inside wall of holding tank rotates and installs the mounting disc, the gag lever post runs through the mounting disc extends to outside the hanging flower basket, the gag lever post is kept away from be provided with the fixed disk on the tip of traction roller, fixedly connected with spring on the fixed disk, the spring keep away from the tip of fixed disk with mounting disc fixed connection.

Through adopting above-mentioned technical scheme, the setting of spring is favorable to preventing that the gag lever post from breaking away from the mounting disc, and when operating personnel stimulate the fixed disk, the fixed disk removes and drives the gag lever post and remove, and when the gag lever post breaks away from with the grafting state of pull roll, the pull roll breaks away from the hanging flower basket from the accommodation groove to make things convenient for operating personnel to change the haulage rope.

In summary, the present application includes at least one of the following beneficial technical effects:

1. an operator firstly passes a guide rope on a top plate through a guide pipe, then the operator fixedly connects the guide rope passing through the guide pipe with a bottom plate, the operator keeps the guide rope in a tightening state, on one hand, the matching of the guide rope and the guide pipe is beneficial to ensuring that a hanging basket moves along the length direction of the guide rope, on the other hand, the matching of the guide rope and the guide pipe is beneficial to improving the moving stability of the hanging basket, the operator starts a rotating assembly, the rotating assembly enables a traction roller to rotate, and the traction roller rotates to reel the traction rope, so that the operator can conveniently adjust the height of the hanging basket;

2. the output shaft of the first double-headed motor rotates to drive the connecting rod to rotate, the connecting rod rotates to drive the first bevel gear to rotate, the first bevel gear rotates to drive the second bevel gear to rotate, the second bevel gear rotates to drive the rotating rod to rotate, and the rotating rod rotates to enable the winding rollers at two ends of the rotating rod to synchronously rotate, so that the guide rope is stretched;

3. the setting of spring is favorable to preventing that the gag lever post from breaking away from the mounting disc, and when operating personnel pulling fixed disk, the fixed disk removes and drives the gag lever post and remove, and when the gag lever post breaks away from with the grafting state of traction roller, the traction roller breaks away from the hanging flower basket from the accommodation groove to make things convenient for operating personnel to change the haulage rope.

Drawings

Fig. 1 is a schematic structural view of a hanger for bridge construction according to an embodiment of the present application.

Fig. 2 is a schematic view of an internal structure of a basket according to an embodiment of the present application.

Reference numerals illustrate:

1. a top plate; 11. a rotating lever; 12. a wind-up roll; 13. a guide rope; 14. a guide hole; 2. a bottom plate; 21. positioning an anchor bolt; 3. a hanging basket; 31. a guide tube; 32. a mounting groove; 33. a receiving groove; 34. a mounting plate; 35. a traction roller; 36. a first limit groove; 37. a traction rope; 38. a through hole; 4. a drive assembly; 41. a first mounting motor; 42. a connecting rod; 43. a first bevel gear; 43. a second bevel gear; 5. a positioning plate; 51. an electric push rod; 52. a fixed sleeve; 53. a moving rod; 6. a fixing assembly; 61. a threaded sleeve; 62. a threaded rod; 7. a rotating assembly; 71. a second double-ended motor; 72. a connecting sleeve; 73. a limit rod; 74. a fixed plate; 75. a spring; 76. a limit bar; 77. and the second limit groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses a hanger for bridge construction. Referring to fig. 1, the hanger for bridge construction includes a top plate 1, a bottom plate 2, and a hanging basket 3.

Referring to fig. 1, a top plate 1 is in the shape of a rectangular plate, and the top plate 1 is horizontally arranged. The upper surface of roof 1 is provided with two dwang 11, and dwang 11 passes through the support and rotates with roof 1 to be connected, and one dwang 11 sets up in the one end of roof 1, and another dwang 11 sets up in the other end of roof 1, and the axis of two dwang 11 is parallel to each other. The winding roller 12 is sleeved on the end parts of the two ends of the rotating rod 11, the winding roller 12 is fixedly connected with the rotating rod 11, the winding roller 12 is wound with the guide rope 13, one end of the guide rope 13 is fixedly connected with the winding roller 12, and the other end of the guide rope 13 penetrates through the top plate 1. Four guide holes 14 are formed in the top plate 1, the guide holes 14 are in one-to-one correspondence with the guide ropes 13, and the guide ropes 13 are in sliding fit with the inner side walls of the guide holes 14.

Referring to fig. 1, a driving assembly 4 for driving the rotation lever 11 to rotate synchronously is provided on the top plate 1, and the driving assembly 4 includes a first mounting motor 41, a connecting rod 42, a first bevel gear 43, and a second bevel gear 44. The first mounting motor 41 is mounted on the upper surface of the top plate 1, and the axis of the output shaft of the first mounting motor 41 is perpendicular to the axis of the rotating rod 11. The connecting rods 42 are arranged in two, the two connecting rods 42 are in one-to-one correspondence with the two output shafts of the first mounting motor 41, the connecting rods 42 are fixedly connected with the output shafts of the first mounting motor 41, and the axes of the connecting rods 42 are coincident with the axes of the output shafts of the first mounting motor 41. The first bevel gear 43 is sleeved at the end part of the connecting rod 42 far away from the first installation motor 41, and the first bevel gear 43 is fixedly connected with the connecting rod 42. The second bevel gear 44 is fixedly sleeved with the middle part of the rotating rod 11, and the first bevel gear 43 and the second bevel gear 44 are meshed with each other.

Referring to fig. 1, a positioning plate 5 is provided on a roof panel 1, the length direction of the positioning plate 5 is identical to the length direction of the roof panel 1, and the positioning plate 5 is mounted on the top of a bridge. An electric push rod 51 is arranged on one side, far away from the top plate 1, of the top plate 1, a piston rod of the electric push rod 51 penetrates through the positioning plate 5, the piston rod of the electric push rod 51 is in sliding fit with the positioning plate 5, and the piston rod of the electric push rod 51 is fixedly connected with the top plate 1.

Referring to fig. 1, a fixing sleeve 52 is fixedly connected to a side surface of the positioning plate 5 away from the top plate 1, and a length direction of the fixing sleeve 52 is identical to a length direction of a piston rod of the electric push rod 51. The fixed sleeve 52 is internally penetrated with a movable rod 53, the movable rod 53 is in sliding fit with the fixed sleeve 52, the end part of the movable rod 53 extending out of the fixed sleeve 52 penetrates through the positioning plate 5 and is fixedly connected with the top plate 1, and the movable rod 53 is in sliding fit with the positioning plate 5.

The operating personnel starts the electric putter 51, and the piston rod of electric putter 51 removes and drives roof 1 and remove, and the distance between convenient operating personnel adjustment roof 1 and the bridge lateral wall of setting up of electric putter 51. The top plate 1 moves to drive the moving rod 53 to move, and the moving rod 53 and the fixed sleeve 52 are arranged to be beneficial to supporting the top plate 1, so that overall stability is improved.

Referring to fig. 1, a bottom plate 2 has a rectangular plate shape, a length direction of the bottom plate 2 coincides with a length direction of a top plate 1, and the bottom plate 2 is mounted on the ground by a positioning anchor bolt 21. The bottom plate 2 is provided with a fixing assembly 6, the fixing assembly 6 comprises threaded sleeves 61 and threaded rods 62, the threaded sleeves 61 are vertically arranged, the threaded sleeves 61 are four, the four threaded sleeves 61 are respectively arranged at four corners of the bottom plate 2, and the threaded sleeves 61 are rotationally connected with the bottom plate 2. The threaded rods 62 are provided with four, four threaded rods 62 are in one-to-one correspondence with the four guide ropes 13, the threaded rods 62 are fixedly connected with the end parts of the guide ropes 13 penetrating out of the top plate 1, and the threaded rods 62 are in threaded fit with the threaded sleeves 61.

When an operator fixes the guide rope 13 on the bottom plate 2 by utilizing the cooperation of the threaded sleeve 61 and the threaded rod 62, the operator starts the first double-headed motor, the output shaft of the first double-headed motor rotates to drive the connecting rod 42 to rotate, the connecting rod 42 drives the rotating rod 11 to rotate by the cooperation of the first bevel gear 43 and the second bevel gear 44, and the rotating rod 11 rotates to drive the winding roller 12 to rotate, so that the guide rope 13 is stretched tightly.

Referring to fig. 1, four guide pipes 31 are arranged on the outer side wall of the basket 3, the guide pipes 31 are vertically arranged, the guide pipes 31 are fixedly connected with the basket 3, the guide pipes 31 are in one-to-one correspondence with the guide ropes 13, the guide ropes 13 penetrate through the guide pipes 31, and the guide ropes 13 are in sliding fit with the inner side walls of the guide pipes 31.

Referring to fig. 2, a rotating assembly 7 is provided on the basket 3, and the rotating assembly 7 includes a second double-head motor 71, a connection sleeve 72, and a stopper rod 73. The bottom surface of the hanging basket 3 is provided with a mounting groove 32, and the opening of the mounting groove 32 is rectangular. The second double-head motor 71 is mounted on the inner top surface of the mounting groove 32, and the length direction of the output shaft of the second double-head motor 71 coincides with the length direction of the basket 3. The two connecting sleeves 72 are provided, the two connecting sleeves 72 are respectively arranged on the two output shafts of the second double-head motor 71, and the connecting sleeves 72 are fixedly connected with the output shafts of the second double-head motor 71 in a coaxial manner.

Referring to fig. 2, a receiving groove 33 is formed in the bottom surface of the basket 3, and the cross section of the receiving groove 33 is rectangular. The accommodating grooves 33 are provided in two, and the accommodating grooves 33 are in one-to-one correspondence with the connecting sleeves 72, and the end surface of the connecting sleeve 72 away from the second double-head motor 71 is flush with the inner side wall of the accommodating groove 33 close to the second double-head motor 71. The mounting plate 34 is rotatably mounted on the inner side wall of the accommodating groove 33 far away from the second double-head motor 71, the limiting rod 73 horizontally penetrates through the mounting plate 34, the limiting rod 73 is in sliding fit with the mounting plate 34, and the end part of the limiting rod 73, which is positioned outside the hanging basket 3, is fixedly connected with the fixing plate 74. The limiting rod 73 is sleeved with a spring 75, one end of the spring 75 is fixedly connected with the fixed disc 74, and the other end of the spring 75 is fixedly connected with the mounting disc 34.

Referring to fig. 2, a stopper 76 is fixedly connected to the outer circumferential surface of the stopper 73, and the lengthwise direction of the stopper 76 coincides with the lengthwise direction of the stopper 73. The end of the limiting strip 76 far away from the fixed disc 74 is in sliding fit with the inner side wall of the connecting sleeve 72, and a second limiting groove 77 is formed in the inner side wall of the connecting sleeve 72, and the limiting strip 76 is in sliding fit with the inner side wall of the second limiting groove 77. The part of the limiting rod 73 in the accommodating groove 33 is sleeved with a traction roller 35, the traction roller 35 is in sliding fit with the limiting rod 73, a first limiting groove 36 is formed in the inner side wall of the traction roller 35, and a limiting bar 76 is in sliding fit with the inner side wall of the first limiting groove 36. The traction roller 35 is wound with a traction rope 37, one end of the traction rope 37 is fixedly connected with the traction roller 35, the other end of the traction rope 37 is fixedly connected with the bottom surface of the top plate 1, and the inner top surface of the accommodating groove 33 is provided with a through hole 38 for sliding fit with the traction rope 37. The arrangement of the stop lever 73, the rotating disc, the fixed disc 74 and the spring 75 facilitates the replacement of the pulling roll 35 and the pulling rope 37 by the operator.

The implementation principle of the hanger for bridge construction provided by the embodiment of the application is as follows: the guiding rope 13 on the top plate 1 passes through the guiding tube 31 firstly by an operator, the guiding rope 13 passing through the guiding tube 31 is fixedly connected with the bottom plate 2 by the cooperation of the threaded sleeve 61 and the threaded rod 62, then the operator starts the first double-headed motor to enable the connecting rod 42 to rotate, the connecting rod 42 drives the rotating rod 11 to rotate by the cooperation of the first bevel gear 43 and the second bevel gear 44, and the rotating rod 11 rotates to drive the wind-up roll 12 to rotate, so that the guiding rope 13 is stretched tightly. The cooperation of the guide rope 13 and the guide tube 31 is beneficial to ensuring that the hanging basket 3 moves along the length direction of the guide rope 13 on one hand, and the cooperation of the guide rope 13 and the guide tube 31 is beneficial to improving the moving stability of the hanging basket 3 on the other hand.

The operating personnel starts the second double-head motor 71, and the output shaft of the second double-head motor 71 rotates to drive the connecting sleeve 72 to rotate, and the connecting sleeve 72 drives the limiting rod 73 to rotate through the cooperation of the second limiting groove 77 and the limiting strip 76, and the limiting rod 73 drives the traction roller 35 to rotate through the cooperation of the limiting strip 76 and the first limiting groove 36, and the traction roller 35 rotates to drive the traction rope 37 to move, so that the height of the hanging basket 3 can be conveniently adjusted by the operating personnel.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a gallows for bridge construction which characterized in that: including roof (1) at bridge top, set up in subaerial bottom plate (2) and set up in hanging flower basket (3) between roof (1), bottom plate (2), roof (1) with be provided with many direction ropes (13) between bottom plate (2), be provided with stand pipe (31) on hanging flower basket (3), direction rope (13) pass stand pipe (31) and with stand pipe (31) sliding fit, pull roll (35) are installed in the rotation on hanging flower basket (3), wind on pull roll (35) be equipped with haulage rope (37), haulage rope (37) keep away from the tip of pull roll (35) with roof (1) fixed connection, just be provided with on hanging flower basket (3) and be used for the drive rotatory rotating assembly (7) of pull roll (35).

2. The hanger for bridge construction according to claim 1, wherein: the utility model discloses a motor vehicle steering system, including roof (1), guide rope (13), fixed cover in roof (1) both ends is equipped with dwang (12), set up on bottom plate (2) and be used for passing guide hole (14) of guide rope (13), guide rope (13) keep away from the tip of bottom plate (2) with wind-up roll (12) fixed connection, be provided with on bottom plate (2) and be used for fixing fixed subassembly (6) of guide rope (13), be provided with on roof (1) and be used for the drive dwang (11) synchronous pivoted drive assembly (4).

3. The hanger for bridge construction according to claim 2, wherein: the driving assembly (4) comprises a first double-headed motor arranged on the top plate (1), a connecting rod (42) coaxially and fixedly connected to an output shaft of the first double-headed motor, a first bevel gear (43) fixedly sleeved on the connecting rod (42) and a second bevel gear (44) fixedly sleeved on the rotating rod (11), wherein the first bevel gear (43) and the second bevel gear (44) are meshed with each other.

4. The hanger for bridge construction according to claim 2, wherein: the fixing assembly (6) comprises a threaded sleeve (61) rotatably mounted on the bottom plate (2) and a threaded rod (62) fixedly connected to the end of the guide rope (13), and the threaded rod (62) is in threaded fit with the threaded sleeve (61).

5. The hanger for bridge construction according to claim 1, wherein: the positioning plate (5) is arranged on the top plate (1), the electric push rod (51) is arranged on the positioning plate (5), and a piston rod of the electric push rod (51) penetrates through the positioning plate (5) and is fixedly connected with the top plate (1).

6. The hanger for bridge construction according to claim 5, wherein: the positioning plate (5) is provided with a fixed sleeve (52), a movable rod (53) is arranged in the fixed sleeve (52) in a sliding mode, and the end portion, extending out of the fixed sleeve (52), of the movable rod (53) is fixedly connected with the top plate (1).

7. The hanger for bridge construction according to claim 1, wherein: the rotating assembly (7) comprises a second double-head motor (71) arranged on the hanging basket (3), a connecting sleeve (72) coaxially and fixedly connected to an output shaft of the second double-head motor (71) and a limiting rod (73) penetrating through the connecting sleeve (72), a limiting strip (76) is fixedly connected to the limiting rod (73), a traction roller (35) is sleeved on the limiting rod (73), a first limiting groove (36) for sliding fit of the limiting strip (76) is formed in the inner side wall of the traction roller (35), and a second limiting groove (77) for sliding fit of the limiting strip (76) is formed in the inner side wall of the connecting sleeve (72).

8. The hanger for bridge construction according to claim 7, wherein: the utility model discloses a traction device, including hanging flower basket (3), holding groove (33) that are used for holding traction roller (35) have been seted up to the bottom surface of hanging flower basket (3), offer on the interior top surface of holding groove (33) and be used for passing through hole (38) of haulage rope (37), mounting disc (34) are installed in the inside wall rotation of holding groove (33), gag lever post (73) run through mounting disc (34) and extend to outside hanging flower basket (3), gag lever post (73) are kept away from be provided with fixed disk (74) on the tip of traction roller (35), fixedly connected with spring (75) on fixed disk (74), spring (75) are kept away from the tip of fixed disk (74) with mounting disc (34) fixed connection.

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