Posture adjusting device for hoisting reinforcing steel bar part of cable bent tower

Abstract

The utility model belongs to the technical field of reinforcing steel bar hoisting, and particularly relates to a posture adjusting device for hoisting a reinforcing steel bar part of a cable bent tower. The utility model provides a posture adjusting device for hoisting a reinforcing steel bar part of a cable bent tower, which comprises a moving unit arranged at the lower end of a hoisting cable, an adjusting unit arranged on the moving unit and used for adjusting the hoisting angle of a reinforcing steel bar, and a clamping unit arranged at the lower end of the adjusting unit and used for fixing the reinforcing steel bar, the moving unit comprises a fixed plate arranged at the lower end of the hoisting cable, a moving seat arranged on the fixed plate and used for installing the adjusting unit, and a driving assembly arranged on the fixed plate and used for driving the moving seat to move on the fixed plate, so that the postures of the hoisting reinforcing steel bars can be finely adjusted according to the field installation condition; the construction difficulty is reduced and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar hoisting, and particularly relates to an attitude adjustment device for hoisting the steel bar part of a cable tower. Background Art

[0002] A cable tower refers to a tower-shaped structure that supports the main cable of a suspension bridge or a cable-stayed bridge. The height of the cable tower is usually related to the main span of the bridge. There are various types of cable tower structures, which are mainly selected according to factors such as the layout requirements of the stay cables, the deck width, and the main beam span. The commonly used cable tower forms are arranged longitudinally along the bridge with single-column, A-shaped, and inverted Y-shaped, and arranged transversely along the bridge with single-column, double-column, portal, inclined-leg portal, inverted V-shaped, inverted Y-shaped, A-shaped, etc. At present, when a cable tower is being built, steel bars need to be lifted. When the existing hoisting device hoists the steel bars, it is not convenient to adjust the attitude of the lifted steel bars.

[0003] The Chinese utility model patent with the patent publication number CN217264283U and the publication date of August 23, 2022, discloses a steel bar hoisting and clamping device for civil engineering construction, including a connecting seat. A lifting rope is fixedly arranged at the middle position of the top of the connecting seat. A lifting ring is fixedly arranged at the top of the lifting rope. A limiting spring is sleeved on the outer side of the lifting rope. One end of the limiting spring is fixedly connected to one side of the top of the connecting seat, and the other end of the limiting spring is fixedly connected to the bottom of the lifting ring. One side of the inner wall of the connecting seat is rotatably provided with a bidirectional lead screw. A servo motor is fixedly arranged on one side of the connecting seat. One end of the bidirectional lead screw passes through the other side of the inner wall of the connecting seat and is fixedly connected to the output end of the servo motor. A chute is opened at the middle position of the bottom of the connecting seat. Mounting seats are slidably arranged at both ends of the inner wall of the chute. One side of each of the two mounting seats is respectively inserted and connected to both ends of the surface of the bidirectional lead screw.

[0004] The steel bar hoisting and clamping device for civil engineering construction in this Chinese utility model patent has the following general usage methods and advantages: According to the length of the steel bar to be hoisted, start the servo motor to drive the bidirectional lead screw to rotate, so that the two mounting seats move away from or towards each other along the bidirectional lead screw until they are adapted to the length of the steel bar to be hoisted. The chute limits the two mounting seats to prevent them from rotating with the bidirectional lead screw. Then, select a jaw with a suitable size according to the diameter of the steel bar. By pressing the two handles, drive the two blocks to move towards each other, compressing the compression spring. Then, engage the connecting pipe with the first card slot. By releasing the hand, the compression spring resets to drive the two blocks to engage with the second card slot, thereby connecting the mounting seat and the jaw, which is convenient for replacing jaws of different sizes. Hook the lifting ring with a crane to hoist the steel bar. The limiting spring can prevent the hoisted steel bar from spinning in the air; the advantage is that it can flexibly adjust the hoisting position according to the length of the steel bar to be hoisted, making the hoisting more stable, improving safety, and further facilitating the replacement of jaws of different sizes according to the diameters of different steel bars, with a wider application range and more stable clamping.

[0005] However, during the actual use of this steel bar hoisting and clamping device, there are at least the following deficiencies, that is, the technical problems to be solved by this utility model: Although the steel bar hoisting and clamping device can improve the stability of clamping the steel bar, it cannot adjust the posture and installation angle of the steel bar during installation, which is inconvenient to control during the actual operation process and the construction efficiency is low.

[0006] Therefore, in summary, there is an urgent need for a clamping device that can adjust the hoisting posture of steel bars to solve such problems. Summary of the Utility Model

[0007] The utility model provides a posture adjustment device for hoisting the steel bar part of a cable tower, including a moving unit arranged at the lower end of a hoisting cable, an adjustment unit arranged on the moving unit for adjusting the hoisting angle of the steel bar, and a clamping unit arranged at the lower end of the adjustment unit for fixing the steel bar. The moving unit includes a fixing plate arranged at the lower end of the hoisting cable, a moving seat arranged on the fixing plate for installing the adjustment unit, and a driving component arranged on the fixing plate for driving the moving seat to move on the fixing plate, so that: The utility model can finely adjust the posture of the hoisted steel bar according to the on-site installation situation, reduce the construction difficulty, and improve the construction efficiency.

[0008] The technical solution adopted by the present utility model to solve the above problems is as follows: An attitude adjustment device for hoisting the steel bar part of a cable tower, which includes a moving unit arranged at the lower end of a hoisting cable, an adjustment unit arranged on the moving unit for adjusting the hoisting angle of the steel bar, and a clamping unit arranged at the lower end of the adjustment unit for fixing the steel bar; the moving unit includes a fixing plate arranged at the lower end of the hoisting cable, a moving seat arranged on the fixing plate for installing the adjustment unit, and a driving component arranged on the fixing plate for driving the moving seat to move on the fixing plate.

[0009] A further preferred technical solution lies in that: the driving component includes a sliding groove arranged on the fixing plate, a threaded rod arranged in the sliding groove with its end rotatably connected to the fixing plate, a threaded hole arranged on the moving seat for screwing with the threaded rod, a first groove arranged on the side wall of the sliding groove, two protrusions arranged on both sides of the moving seat and slidably connected with the first groove, and a first motor arranged on the fixing plate for driving the threaded rod to rotate.

[0010] A further preferred technical solution lies in that: the adjustment unit includes a second motor installed on the moving seat, a mounting plate arranged at the lower end of the second motor, and a connecting piece arranged on the mounting plate for fixing the clamping unit.

[0011] A further preferred technical solution lies in that: the clamping unit includes an upper clamping strip arranged at the lower end of the connecting piece, a lower clamping strip arranged parallel to the lower part of the upper clamping strip, two through holes arranged at both ends of the upper clamping strip, two limit screws arranged at both ends of the lower clamping strip and respectively passing through the two through holes, and limit nuts screwed on the ends of the limit screws away from the lower clamping strip.

[0012] A further preferred technical solution lies in that: the clamping unit further includes a first half groove arranged at the lower end of the upper clamping strip, and a second half groove arranged at the upper end of the lower clamping strip and corresponding to the first half groove.

[0013] A further preferred technical solution lies in that: it further includes an adapter frame unit arranged on the moving seat and rotatably connected with the mounting plate.

[0014] A further preferred technical solution lies in that: the adapter frame unit includes an adapter plate arranged on the moving seat, an annular groove arranged on the adapter plate, two connecting rods arranged at both ends of the mounting plate and slidably connected with the annular groove, a second groove arranged on the side wall of the annular groove, and a convex ring arranged at the end of the connecting rod close to the adapter plate and slidably connected with the second groove.

[0015] A further preferred technical solution is that: the connection frame unit further includes balls arranged in the second groove.

[0016] A further preferred technical solution is that: the clamping unit further includes gaskets arranged on the inner surfaces of the first half groove and the second half groove.

[0017] A further preferred technical solution is that: the outer diameter of the limit nut is greater than the inner diameter of the through hole. Description of the Drawings

[0018] Figure 1 Schematic diagram of the first embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the moving unit of the present invention;

[0020] Figure 3 Front view of the moving unit of the present invention;

[0021] Figure 4 Schematic diagram of the clamping unit of the present invention;

[0022] Figure 5 Front view of the second embodiment of the present invention;

[0023] Figure 6 Schematic diagram of the connection frame unit of the present invention.

[0024] In the figures, the meanings of the respective reference numerals are as follows:

[0025] Lifting cable a, steel bar b;

[0026] Moving unit 1, adjusting unit 2, clamping unit 3, connection frame unit 4;

[0027] Fixed plate 11, moving seat 12, driving assembly 13, second motor 21, mounting plate 22, connecting member 23, upper clamping strip 31, lower clamping strip 32, through hole 33, limit screw 34, limit nut 35, first half groove 36, second half groove 37, gasket 38, connection plate 41, annular groove 42, connecting rod 43, second groove 44, convex ring 45, ball 46;

[0028] Chute 131, threaded rod 132, threaded hole 133, first groove 134, protrusion 135, first motor 136. Detailed Embodiments

[0029] The following will describe in detail the embodiments of the present invention with reference to the drawings. The following is only a preferred embodiment of the present invention and does not limit the scope of the present invention.

[0030] In this specification, orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc., which are mentioned or may be mentioned, are defined with respect to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may accordingly change depending on their different positions and usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0031] Embodiment 1

[0032] As shown in the attached Figures 1-4 drawing, an attitude adjustment device for hoisting the steel bar part of a cable tower includes a moving unit 1 provided at the lower end of a suspension cable a, an adjustment unit 2 provided on the moving unit 1 for adjusting the hoisting angle of the steel bar b, and a clamping unit 3 provided at the lower end of the adjustment unit 2 for fixing the steel bar b; the moving unit 1 includes a fixing plate 11 provided at the lower end of the suspension cable a, a moving seat 12 provided on the fixing plate 11 for installing the adjustment unit 2, and a driving assembly 13 provided on the fixing plate 11 for driving the moving seat 12 to move on the fixing plate 11.

[0033] In this embodiment, the general usage method of this attitude adjustment device is as follows:

[0034] The position of the steel bar b on the horizontal plane can be adjusted through the moving unit 1 provided at the lower end of the suspension cable a. Without moving the suspension cable a, the moving unit 1 drives the adjustment unit 2 and the clamping unit 3 to bring the steel bar b closer to the installation location, and then the installation angle of the clamping unit 3 and the steel bar b is adjusted by rotating the adjustment unit 2; the fixing plate 11 is connected to the lower end of the suspension cable a to provide a range of movement for the moving seat 12, and the moving seat 12 moves on the fixing plate 11 through the driving assembly 13 and drives the clamping unit 3 installed on the moving seat 12 closer to the installation point.

[0035] As a preference of this embodiment, the driving assembly 13 includes a sliding groove 131 provided on the fixing plate 11, a threaded rod 132 provided in the sliding groove 131 and rotatably connected to the fixing plate 11 at its end, a threaded hole 133 provided on the moving seat 12 for screwing with the threaded rod 132, a first groove 134 provided on the side wall of the sliding groove 131, two protrusions 135 provided on both sides of the moving seat 12 and slidably connected to the first groove 134, and a first motor 136 provided on the fixing plate 11 for driving the threaded rod 132 to rotate; the adjustment unit 2 includes a second motor 21 installed on the moving seat 12, a mounting plate 22 provided at the lower end of the second motor 21, and a connecting member 23 provided on the mounting plate 22 for fixing the clamping unit 3.

[0036] In this embodiment, the specific structures of a mobile unit 1 and an adjustment unit 2 are disclosed; the sliding groove 131 formed on the fixing plate 11 is used to provide a sliding space for the moving seat 12. The sliding groove 131 is formed on the lower end surface of the fixing plate 11. The threaded rod 132 is screwed into the threaded hole 133 penetrating the moving seat 12. Two protrusions 135 on both sides of the moving seat 12 slide in the first groove 134 on the side wall of the sliding groove 131. When the threaded rod 132 rotates, the protrusions 135 restrict the rotation of the moving seat 12 so that the moving seat 12 can only displace along the threaded rod 132. The threaded rod 132 is rotatably connected to the fixing plate 11 through a bearing. The first motor 136 is used to drive the threaded rod 132 to rotate clockwise / counterclockwise, so as to control the forward / backward movement of the moving seat 12 on the threaded rod 132; a second motor 21 is arranged on the moving seat 12. The second motor is a rotary motor. One end is connected to the moving seat 12, and the other end is connected to the mounting plate 22 through a vertical rod. The mounting plate 22 mounts the clamping unit 3 through a connecting member 23. The connecting member 23 can be set as a steel cable to provide strength for the clamping unit 3; the first motor 136 and the second motor 21 are communicatively connected to the control system, which is convenient for construction personnel to control according to the on-site operation conditions. Controlling the start and stop of the motors by the control system is common knowledge known to those skilled in the art, so it will not be elaborated in this application.

[0037] As a preference of this embodiment, the clamping unit 3 includes an upper clamping strip 31 arranged at the lower end of the connecting member 23, a lower clamping strip 32 arranged in parallel below the upper clamping strip 31, two through holes 33 arranged at both ends of the upper clamping strip 31, two limiting screws 34 arranged at both ends of the lower clamping strip 32 and respectively passing through the two through holes 33, and a limiting nut 35 screwed on the end of the limiting screw 34 far from the lower clamping strip 32. The outer diameter of the limiting nut 35 is larger than the inner diameter of the through hole 33.

[0038] In this embodiment, the specific structure of the clamping unit 3 is disclosed; it includes an upper clamping strip 31 and a lower clamping strip 32 that are parallel to each other and used for clamping the steel bar b. Two limiting screws 34 are respectively arranged at both ends of the lower clamping strip 32 and pass through the through holes 33 arranged at both ends of the upper clamping strip 31 to stabilize the relative positions of the upper and lower clamping strips. The inner diameter of the through hole 33 is slightly larger than the outer diameter of the limiting screw 34. Preferably, it has a smooth hole inner wall to facilitate adjusting the distance between the upper and lower clamping strips to adapt to the size of the steel bar. The limiting nut 35 is screwed on the upper end of the limiting screw 34 and is located above the upper clamping strip 31. The outer diameter of the limiting nut 35 is larger than the inner diameter of the through hole 33. By rotating the limiting nut 35, the nut abuts against the surface of the upper clamping strip 31, so as to clamp the steel bar b.

[0039] As a preference of this embodiment, the clamping unit 3 further includes a first half groove 36 provided at the lower end of the upper clamping bar 31, a second half groove 37 provided at the upper end of the lower clamping bar 32 and corresponding to the first half groove 36, and a gasket 38 provided on the inner surfaces of the first half groove 36 and the second half groove 37.

[0040] In this embodiment, the first half groove 36 opened at the lower end of the upper clamping bar 31 and the second half groove 37 opened at the upper end of the lower clamping bar 32 together form a groove through which the steel bar b can pass, avoiding damage caused by excessive clamping of the steel bar b. Further, the gasket 38 provided in the groove can not only provide a certain degree of protection and friction for the steel bar, but also adapt to steel bars of various thicknesses. The gasket can be a rubber gasket, a flexible graphite gasket, etc.

[0041] Compared with the prior art, the advantage of this embodiment is that it can adjust the attitude of the hoisted steel bars during the construction of the cable tower. Compared with directly adjusting by a crane, the adjusting device described in this application has the characteristics of being more precise and comprehensive, can adapt to various construction scenarios, and is more convenient for construction and installation.

[0042] Embodiment Two

[0043] As shown in the attached Figures 5-6 figure, the difference between this embodiment and Embodiment One is that a connection frame unit is added to increase the structural strength of the device, which is specifically as follows:

[0044] The attitude adjusting device for hoisting the cable tower steel bar part further includes a connection frame unit 4 provided on the moving seat 12 and rotatably connected to the mounting plate 22; the connection frame unit 4 includes a connection plate 41 provided on the moving seat 12, an annular groove 42 provided on the connection plate 41, two connecting rods 43 provided at both ends of the mounting plate 22 and slidably connected to the annular groove 42, a second groove 44 provided on the side wall of the annular groove 42, a convex ring 45 provided at the end of the connecting rod 43 close to the connection plate 41 and slidably connected to the second groove 44, and a ball 46 provided in the second groove 44.

[0045] In this embodiment, a connection frame unit 4 is added to the moving seat 12 to prevent the second motor 21 from bearing excessive force and causing instability of the device structure. The connection plate 41 is installed on the moving seat 12 and moves synchronously with the moving seat 12. One end of the second motor 21 is connected to the bottom surface of the connection plate 41, and the other end is connected to the mounting plate 22. When the second motor 21 rotates, power is transmitted to the mounting plate 22 through the vertical rod to drive the mounting plate 22 to rotate. The connecting rod 43 connected between the mounting plate 22 and the connection plate 41 rotates synchronously with the mounting plate 22. Therefore, the connecting rod 43 slides inside the annular groove 42, and the convex ring 45 at the upper end of the connecting rod 43 slides inside the second groove 44. At least two connecting rods 43 are provided to ensure stability, and multiple connecting rods can be set according to actual situations. Ball bearings 46 are provided inside the second groove 44 to facilitate the sliding of the connecting rod 43, reduce friction, and avoid resistance to sliding.

[0046] Compared with the prior art, the advantages of this embodiment are as follows: on the basis of Embodiment 1, the connection strength between structures is improved, the second motor is prevented from being damaged due to bearing a large load, and the service life of the device is increased.

[0047] The working process of the present utility model is as follows: First, connect the suspension cable to the crane, then place the steel bar in the groove between the upper clamping bar and the lower clamping bar, then turn the limit nut to make the distance between the upper clamping bar and the lower clamping bar smaller, and then the upper clamping bar and the lower clamping bar will clamp the steel bar. Then the crane lifts the steel bar. When it is necessary to adjust the posture of the steel bar, start the first motor to drive the threaded rod to rotate. At this time, the moving seat will drive the steel bar to move left and right, thereby adjusting the left and right positions of the steel bar. Then start the second motor to drive the mounting plate to rotate. At this time, the steel bar will rotate, thereby adjusting the angular posture of the steel bar. The provided clamping unit can fix the steel bar, and the provided moving unit and adjustment unit can drive the fixed steel bar to move left and right and rotate. In summary, the present utility model can conveniently adjust the posture of the steel bar for the cable tower.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various modifications can be made without departing from the purpose of the present utility model. These are all non-creative modifications and are protected by the Patent Law as long as they are within the scope of the claims of the present utility model.

Claims

1. A posture adjustment device for hoisting the steel bar part of a cable tower, characterized in that: The invention comprises a moving unit (1) arranged at the lower end of a suspension cable (a), an adjusting unit (2) arranged on the moving unit (1) and used for adjusting the lifting angle of a reinforcement bar (b), and a clamping unit (3) arranged at the lower end of the adjusting unit (2) and used for fixing the reinforcement bar (b); the moving unit (1) comprises a fixing plate (11) arranged at the lower end of the suspension cable (a), a moving seat (12) arranged on the fixing plate (11) and used for mounting the adjusting unit (2), and a driving component (13) arranged on the fixing plate (11) and used for driving the moving seat (12) to move on the fixing plate (11).

2. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 1, characterized in that: The driving assembly (13) comprises a slide groove (131) arranged on the fixed plate (11), a threaded rod (132) arranged in the slide groove (131) and having an end portion rotatably connected to the fixed plate (11), a threaded hole (133) arranged on the movable seat (12) and used for being screwed to the threaded rod (132), a first groove (134) arranged on a side wall of the slide groove (131), two protrusions (135) arranged on both sides of the movable seat (12) and slidably connected to the first groove (134), and a first motor (136) arranged on the fixed plate (11) and used for driving the threaded rod (132) to rotate.

3. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 1, characterized in that: The adjustment unit (2) comprises a second motor (21) mounted on the moving seat (12), a mounting plate (22) arranged at the lower end of the second motor (21), and a connecting member (23) arranged on the mounting plate (22) and used to fix the clamping unit (3).

4. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 3, characterized in that: The clamping unit (3) comprises an upper clamping strip (31) arranged at the lower end of the connecting member (23), a lower clamping strip (32) arranged parallel to and below the upper clamping strip (31), two through holes (33) arranged at both ends of the upper clamping strip (31), two limiting screws (34) arranged at both ends of the lower clamping strip (32) and respectively passing through the two through holes (33), and a limiting nut (35) screwed to an end of the limiting screw (34) away from the lower clamping strip (32).

5. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 4, characterized in that: The clamping unit (3) further comprises a first half groove (36) arranged at the lower end of the upper clamping strip (31), and a second half groove (37) arranged at the upper end of the lower clamping strip (32) and corresponding to the first half groove (36).

6. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 3, characterized in that: It also includes a connecting frame unit (4) which is arranged on the movable seat (12) and is rotatably connected to the mounting plate (22).

7. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 6, characterized in that: The connecting frame unit (4) comprises a connecting plate (41) arranged on the movable seat (12), an annular groove (42) arranged on the connecting plate (41), two connecting rods (43) arranged at both ends of the mounting plate (22) and slidably connected to the annular groove (42), a second groove (44) arranged on the side wall of the annular groove (42), and a convex ring (45) arranged at the end of the connecting rod (43) close to the connecting plate (41) and slidably connected to the second groove (44).

8. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 7, characterized in that: The connecting frame unit (4) further comprises a rolling ball (46) arranged in the second groove (44).

9. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 5, characterized in that: The clamping unit (3) further comprises a gasket (38) arranged on the inner surfaces of the first half groove (36) and the second half groove (37).

10. The posture adjustment device for hoisting the steel bar portion of a cable tower according to claim 4, characterized in that: The outer diameter of the limiting nut (35) is greater than the inner diameter of the through hole (33).

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