Novel construction steel bar hoisting clamp

Abstract

The utility model relates to the technical field of hoisting clamps, and discloses a novel construction steel bar hoisting clamp which comprises a hoisting rod truss, a hoisting mechanism is arranged at the upper end of a support of the hoisting rod truss, a track position correcting mechanism is arranged at the lower end of the support of the hoisting rod truss, and clamping jaw assemblies are arranged below two sets of sliding tables of the track position correcting mechanism. According to the utility model, the hoisting device is pre-assembled on a crane by utilizing the hanging mechanism, then symmetrical displacement correction of the track correction mechanism is utilized, the clamping angle between the two groups of clamping jaw components is adjusted and corrected, so that the construction steel bars are clamped and hoisted in a two-end clamping and hoisting mode, and then the construction steel bars are mechanically clamped and pressed down and fixed by utilizing the clamping jaw components; on one hand, the double-point clamping hoisting device has the double-point clamping hoisting characteristic, the hoisting stability and safety can be improved, and on the other hand, the double-point clamping hoisting device has the flexible adjusting performance, and the construction steel bars with different lengths can be hoisted.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting clamps, in particular to a novel building steel bar hoisting clamp. Background Art

[0002] When the steel bars are brought to the site for laying, they are usually transported in bundles. Due to their heavy weight, cranes are usually used to lift them into the site. When lifting the steel bars into the site, corresponding lifting clamps are usually installed at the crane's lifting head to facilitate the lifting of the steel bars into the site. For example, as shown in the existing patent technology: after searching, the China Patent Network discloses a steel bar lifting clamp (Open Announcement No. CN219546493U). The clamp of this type of device uses I-shaped steel as the lifting beam. The bracket and the support plate have a large supporting surface. When lifting the steel bars, it can provide stable support at the bottom of the steel bars, and the steel bars will not slide and cause the hoist to break. With the bracket structure that can slide left and right on the beam, steel bar bundles of different sizes can be clamped and fixed. The wing plate supports the suspended steel bars to prevent the steel bar ends from bending downward due to gravity and sliding.

[0003] However, the above-mentioned patents and the existing market-used construction steel bar lifting clamps still have some shortcomings: the existing method of clamping, supporting and lifting construction steel bars using a combination of a bracket and a support plate has a limited clamping and lifting range, and can only perform a small-scale clamping and lifting work on the middle part of the construction steel bar. The construction steel bar is very likely to fall off during lifting and transportation, which poses a high safety risk. To this end, those skilled in the art have provided a new construction steel bar lifting clamp to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] The main purpose of the utility model is to provide a novel construction steel bar lifting clamp, which can effectively solve the problem of poor lifting stability of the existing construction steel bar lifting clamp in the background technology.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a new type of construction steel bar lifting fixture, comprising a boom truss, wherein the upper end of the boom truss bracket is provided with a hanging mechanism, and the lower end of the boom truss bracket is provided with a track alignment mechanism, and the two sets of slides of the track alignment mechanism are both provided with a clamping claw assembly below;

[0006] The track calibration mechanism includes guide rail frames installed in pairs symmetrically at the lower ends of the boom truss brackets and a driving frame installed in the middle of the lower ends of the boom truss brackets. The guide rail ends of the two groups of guide rail frames are slidably connected to guide slides, and a transmission rack is provided on one side of the frame of the two groups of guide slides. A driving motor is installed inside the bracket of the driving frame, and the output end of the driving motor is provided with a driving gear meshing with the transmission rack.

[0007] As a further solution of the present invention, the two groups of transmission racks are arranged symmetrically and staggered in forward and reverse directions.

[0008] As a further solution of the present invention: the guide rail frame is an I-shaped guide rail.

[0009] As a further solution of the present invention: the clamping claw assembly includes a mounting platform, an arm truss is installed through the middle of the mounting platform, and arm cross plates are symmetrically installed at both ends of the arm truss bracket, each group of arm cross plates are symmetrically connected with clamping arms at both ends of the plate frame, and the top ends of the arm rods of the two groups of clamping arms are connected with first hydraulic push rods, and multiple groups of second hydraulic push rods are arranged at the bottom end of the arm truss bracket, and the telescopic end of each group of second hydraulic push rods is provided with a downward clamping seat.

[0010] As a further solution of the present invention: the pressing clamp seat is located directly opposite the middle portion of the clamping claw of the clamping arm.

[0011] As a further solution of the present invention: the hanging mechanism includes hanging supports symmetrically installed at both ends of the hanger truss, and the two groups of hanging supports are connected to the hanging chains, the two groups of hanging chains are arranged in an oblique symmetrical manner, and the two groups of hanging chains are hung with traction hooks.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] When lifting and transporting construction steel bars, the utility model utilizes a hanging mechanism to pre-assemble them on a crane, and then utilizes the symmetrical displacement calibration of the track calibration mechanism to adjust and calibrate the clamping angles between the two sets of jaw assemblies so that they maintain a clamping and hoisting mode at both ends, clamping and hoisting the construction steel bars, and then utilizes the mechanical clamping and downward pressing of the jaw assemblies to stably lift and transport the construction steel bars. On the one hand, the utility model has a double-point clamping and hoisting characteristic, which can improve the hoisting stability and safety, and on the other hand, it has flexible adjustment performance, and can lift construction steel bars of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a new type of building steel bar lifting fixture of the utility model;

[0015] Figure 2 This is a structural diagram of a track alignment mechanism in a new type of building steel bar lifting fixture of the present utility model;

[0016] Figure 3 This is a structural diagram of a clamping claw assembly in a new type of building steel bar lifting fixture of the present utility model;

[0017] Figure 4 The utility model is a bottom view of a clamping claw assembly in a new type of building steel bar lifting clamp.

[0018] In the figure: 1. boom truss; 2. drive frame; 3. clamping claw assembly; 31. mounting platform; 32. first hydraulic push rod; 33. arm force cross plate; 34. arm force truss; 35. second hydraulic push rod; 36. press-down clamp seat; 37. clamping arm; 4. hanging support; 5. hanging chain; 6. traction hook; 7. driving motor; 8. driving gear; 9. guide rail frame; 10. transmission rack; 11. guide slide. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] Please refer to Figure 1-4As shown, a new type of construction steel bar lifting clamp includes a boom truss 1, and a hanging mechanism is provided at the upper end of the bracket of the boom truss 1. The hanging mechanism includes hanging supports 4 symmetrically installed at both ends of the boom truss 1, and two groups of hanging supports 4 are connected to hanging chains 5. The two groups of hanging chains 5 are arranged in an oblique symmetrical manner, and the two groups of hanging chains 5 are hung with traction hooks 6. By utilizing the triangular combination of the two groups of hanging chains 5 and the traction hooks 6, a triangular force form can be formed, and the lifting clamp can be hung on the crane to ensure its force stability.

[0023] A track positioning mechanism is provided at the lower end of the bracket of the boom truss 1. The track positioning mechanism includes guide rail frames 9 installed in a symmetrical manner in pairs at the lower end of the bracket of the boom truss 1 and a drive frame 2 installed in the middle of the lower end of the bracket of the boom truss 1. The guide rail ends of the two sets of guide rail frames 9 are slidably connected with a guide slide 11. The guide rail frame 9 is an I-shaped guide rail. By setting the guide rail frame 9 to an I-shaped guide rail structure, it can play a guiding role on the one hand while playing an arm force support role on the other hand, thereby guiding the arm force of the guide slide 11.

[0024] A transmission rack 10 is provided on one side of the frame of the two sets of guide slides 11, a drive motor 7 is installed inside the bracket of the drive frame 2, and a drive gear 8 meshing with the transmission rack 10 is provided at the output end of the drive motor 7. The two sets of transmission racks 10 are symmetrically staggered in the forward and reverse directions. When the lifting clamp is used to lift and transport the construction steel bars, the spacing and orientation between the two sets of clamping jaw assemblies 3 can be pre-adjusted according to the length of the construction steel bars. Then, during the adjustment process, the drive motor 7 is controlled to work to drive the drive gear 8 to rotate, and the meshing transmission of the drive gear 8 and the transmission rack 10 is used to push the two sets of transmission racks 10 to engage and push in opposite directions, thereby driving the two sets of guide slides 11 to slide symmetrically along the guide rail direction of the guide rail frame 9, and pre-adjusting the spacing and orientation between the two sets of clamping jaw assemblies 3 to adapt to the clamping and lifting of construction steel bars of different lengths.

[0025] A clamping claw assembly 3 is provided under each of the two sets of slides of the track calibration mechanism. The clamping claw assembly 3 includes a mounting platform 31. An arm truss 34 is installed through the middle of the mounting platform 31, and arm cross plates 33 are installed symmetrically at both ends of the bracket of the arm truss 34. The two ends of the plate frame of each set of arm cross plates 33 are symmetrically connected with clamping arms 37, and the top ends of the arm rods of the two sets of clamping arms 37 are connected with first hydraulic push rods 32. The bottom end of the bracket of the arm truss 34 is arranged with multiple sets of second hydraulic push rods 35, and each set of second hydraulic push rods 35 has a The telescopic ends are each provided with a downward pressing clamp seat 36, which is located directly opposite the middle position of the clamping claw of the clamping arm 37. When the lifting clamp is used to lift and transport the construction steel bars, the telescopic end of the first hydraulic push rod 32 is first controlled to extend to push the two sets of clamping arms 37 to mechanically clamp and clamp the construction steel bars. After the clamping is completed, the telescopic end of the second hydraulic push rod 35 is controlled to extend to push the downward pressing clamp seat 36 to move downward, and the construction steel bars in the clamping arm 37 are pressed down to position them, thereby achieving a double fixing effect to prevent them from falling off during lifting and transportation.

[0026] The working principle of the present invention is as follows: when using the lifting clamp to lift and transport the building steel bars, the lifting clamp is installed on the crane based on the combination of the hanging chain 5 and the traction hook 6 in the hanging mechanism. When the building steel bars are subsequently lifted, the spacing and orientation between the two groups of clamping jaw assemblies 3 can be pre-adjusted according to the length of the building steel bars. Then, during the adjustment process, the driving motor 7 is controlled to work, driving the driving gear 8 to rotate, and the meshing transmission of the driving gear 8 and the transmission rack 10 is used to push the two groups of transmission racks 10 to mesh in opposite directions, thereby driving the two groups of guide slides. 11 slides symmetrically along the guide rail direction of the guide rail frame 9 to pre-adjust the spacing and orientation between the two groups of clamping jaw assemblies 3. After the adjustment and calibration is completed, the clamping jaw assembly 3 is moved to the outside of the building steel bar by using a crane, and then the telescopic end of the first hydraulic push rod 32 is controlled to extend to push the two groups of clamping arms 37 to mechanically clamp the building steel bar. After the clamping is completed, the telescopic end of the second hydraulic push rod 35 is controlled to extend to push the pressing clamp seat 36 to move downward, and the building steel bar in the clamping arm 37 is pressed down to position it, which has a double fixing effect and improves its stability during lifting and transportation.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A novel construction steel bar lifting fixture, comprising a hanger truss (1), characterized in that: The upper end of the bracket of the boom truss (1) is provided with a hanging mechanism, and the lower end of the bracket of the boom truss (1) is provided with a track alignment mechanism, and the lower parts of the two sets of slides of the track alignment mechanism are provided with clamping claw assemblies (3); The track alignment mechanism comprises guide rail frames (9) symmetrically mounted in pairs at the lower end of a boom truss (1) bracket and a drive frame (2) mounted in the middle of the lower end of the boom truss (1) bracket, the guide rail ends of the two sets of guide rail frames (9) are slidably connected to guide slides (11), and one side of the frame of the two sets of guide slides (11) is provided with a transmission rack (10), a drive motor (7) is installed inside the bracket of the drive frame (2), and a drive gear (8) meshing with the transmission rack (10) is provided at the output end of the drive motor (7).

2. A new type of construction steel bar lifting fixture according to claim 1, characterized in that: The two groups of transmission racks (10) are arranged in a staggered manner in a forward and reverse symmetrical manner.

3. A new type of construction steel bar lifting fixture according to claim 1, characterized in that: The guide rail frame (9) is an I-shaped guide rail.

4. A new type of construction steel bar lifting fixture according to claim 1, characterized in that: The clamping jaw assembly (3) comprises a mounting platform (31), an arm truss (34) is installed through the middle of the mounting platform (31), and arm cross plates (33) are symmetrically installed at both ends of the bracket of the arm truss (34), and clamping arms (37) are symmetrically connected at both ends of the plate frame of each group of the arm cross plates (33), and the top ends of the arm rods of the two groups of clamping arms (37) are connected to the first hydraulic push rod (32), and a plurality of groups of second hydraulic push rods (35) are arranged at the bottom end of the bracket of the arm truss (34), and a downward clamping seat (36) is provided at the telescopic end of each group of the second hydraulic push rods (35).

5. A new type of construction steel bar lifting fixture according to claim 4, characterized in that: The pressing clamp seat (36) is located directly opposite to the middle of the clamping claw of the clamping arm (37).

6. A new type of construction steel bar lifting fixture according to claim 1, characterized in that: The hanging mechanism comprises hanging supports (4) symmetrically mounted at both ends of the hanging rod truss (1), and two groups of hanging supports (4) are connected to hanging chains (5), the two groups of hanging chains (5) are arranged in an oblique symmetrical manner, and the two groups of hanging chains (5) are hung with a traction hook (6).

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