Hoisting equipment for prefabricated beam assembly construction

Abstract

The utility model provides hoisting equipment for prefabricated beam assembly construction, and belongs to the technical field of road and bridge engineering construction. The equipment is exquisite and flexible in structure, convenient to use, stable in lifting and high in workpiece protectiveness. Two clamping assemblies of the equipment are clamped on the side edge of the upper end of a precast beam in an aligned mode, two stable hinges are supported at the two bottom corners of the precast beam in an aligned mode, a supporting plate is supported at the bottom face of the precast beam, and two steel cables are arranged on the supporting plate in a sleeving mode and penetrate through the stable hinges on the two sides and the clamping assemblies to be finally hung on a lifting hook. And the gantry crane operates and lifts the lifting hook to assemble and lift the precast beam. The equipment is high in structural flexibility, adjustable in structure, adaptive to hoisting of precast beams of various sizes, convenient to widely apply, high in protection to edges of the precast beams, stable in clamping and high in construction safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of road and bridge engineering construction, in particular to a hoisting device for prefabricated beam assembly construction. Background Art

[0002] In order to simplify the construction steps and speed up the construction progress during the construction of roads and bridges, prefabricated structural parts are often used for construction at this stage. However, the prefabricated structural parts used in road and bridge construction have the problem of large structural volume and mass, and require large-tonnage lifting equipment for lifting and assembly. The commonly used lifting equipment is the gantry crane. When the gantry crane is used in specific construction, when the steel cables are directly used to bind the hoisted parts for construction, there are problems such as difficulty in fixing, low stability, and potential safety hazards. Among them, because prefabricated beams are the main structural parts in road and bridge construction and are used the most, many lifting devices are designed for prefabricated beams.

[0003] The patent publication number is CN215974551U, and the patent name is a patent document for a bottom-covering lifting protection device for precast beams, which discloses a lifting device for precast beams. This device achieves the lifting of the precast beam body by arranging a protection mechanism equipped with a hook assembly above the precast beam body and using a steel wire bottom cover. When lifting the precast beam body, the device lacks overall stability. At the same time, the bottom of the device is covered with a steel wire, which can easily cause wear and damage to the edges of the precast beam body, affecting the overall structural integrity and structural strength of the precast beam. In addition, the structural curing adaptability of the hook assembly is poor, and it can only be used in the lifting of precast beams of a specific size, which is not convenient for widespread application. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned background technology, the utility model provides a hoisting device for prefabricated beam assembly construction, which has a sophisticated and flexible structure, is easy to use, has stable lifting, and has strong protection for workpieces.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a hoisting device for prefabricated beam assembly construction, including a support plate, two stabilizing hinges, two clamping components and two steel cables, the two stabilizing hinges are symmetrically arranged, and are respectively supported and buckled on two edges of the bottom surface of the prefabricated beam, the support plate is placed on the bottom of the prefabricated beam and is centrally placed between the two stabilizing hinges, the two clamping components are symmetrically clamped and arranged on the two side edges of the top of the prefabricated beam, the clamping components, the stabilizing hinges and the support plate are all located on the same vertical plane, and the bottom surface of the support plate protrudes Two hanging cable columns are provided, and the two hanging cable columns are arranged symmetrically. A group of mutually parallel wearing seats 1 are provided on each of the stabilizing hinges, and a group of mutually parallel wearing seats 2 are provided on each of the clamping components. The two steel cables are folded in half and inserted in the wearing seats 1 and 2 located on the same side, and the bending points of the steel cables are sleeved on the hanging cable columns. The two ends of the single steel cable are connected to each other in a closed state, and are used to be hung on the hook of the lifting equipment. When the hook is lifted, the two steel cables can be straightened and tightened, and the prefabricated beam can be lifted through the support plate, the stabilizing hinge and the clamping component.

[0006] The stabilizing hinge comprises a bolt, two hinge plates and two rubber pads. The two hinge plates are hingedly connected. One hinge plate fits the bottom surface of the precast beam, and the other hinge plate fits the side wall of the precast beam. Rubber pads are fixedly arranged on the end surfaces of the two hinge plates in contact with the precast beam. The two hinge plates are rotated and fitted on the bolts to achieve hinged connection. The bolt passes through the fitting hole of the other hinge plate and is threadedly connected to the fitting hole of one hinge plate. The bolt is screwed to lock the hinged joints of the two hinge plates, thereby locking the angle between the two hinge plates.

[0007] The clamping assembly includes an adjusting screw and two clamping plates. The two clamping plates are both arranged in an L shape. The recessed sides of the two clamping plates are arranged opposite to each other and clamped at the side edges of the prefabricated beam. Avoidance grooves are arranged at the corners of the recessed sides of the two clamping plates. The adjusting screw is installed between the two clamping plates. The adjusting screw is screwed forward and backward respectively to increase or decrease the distance between the two clamping plates.

[0008] The mounting end of the adjusting screw is rotatably inserted in the clamping plate located above, a limit block is fixedly arranged at the end of the adjusting screw, and the limit block realizes rotational abutment through an end face bearing, and an internal threaded sleeve is rotatably installed in the clamping plate located below, and the internal threaded sleeve is axially limited in the clamping plate, and the adjusting screw is threadedly inserted into the internal threaded sleeve.

[0009] A set of the first dressing seat comprises two first dressing seats, both of which are arranged on the non-working end surface of a hinge plate. Two second dressing seats are respectively arranged on the side elevation surfaces of the two clamping plates, and the distance between the two pairs of second dressing seats respectively located on the two clamping plates is the same, and is the same as the distance between the two first dressing seats.

[0010] Advantages of the present utility model: Multiple structural components of the device are connected in series by steel cables for overall application, with strong structural flexibility; the opening and closing angle of the stable hinge of the device is adjustable, suitable for hoisting precast beams of various sizes; the spacing size of the clamping assembly is adjustable, capable of adapting to clamping precast beams of various sizes, facilitating wide application; the clamping assembly and the stable hinge of the device avoid the edges of the precast beam at the corners, which can effectively protect the structure of the precast beam; the device realizes stable clamping of the precast beam by combining the clamping assembly and the stable hinge, which can effectively avoid the problem of sliding and displacement of the precast beam during hoisting, effectively ensuring the safety of construction. Description of the Drawings

[0011] In the drawings:

[0012] Figure 1 is a schematic diagram of the application effect of the present utility model;

[0013] Figure 2 is Figure 1 a partial enlarged view of part A in

[0014] Figure 3 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 4 is a schematic diagram of the structure of the clamping assembly of the present utility model;

[0016] Figure 5 is a schematic diagram of the structure of the stable hinge of the present utility model;

[0017] Figure 6 is a schematic diagram of the locking structure of the stable hinge of the present utility model;

[0018] In the figure: 1, gantry; 2, pulley; 3, electric hoist; 4, precast beam; 5, pallet; 6, stable hinge; 7, clamping assembly; 8, steel cable; 9, hook; 51, cable hanging post; 61, hinge plate; 62, bolt; 63, rubber pad; 64, mounting seat one; 71, clamping plate; 72, adjusting screw; 73, internal thread sleeve; 74, end face bearing; 75, mounting seat two; 76, avoidance groove. Detailed Embodiment

[0019] The present utility model will be further described in detail below with reference to the drawings. The drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0020] A hoisting device for prefabricated beam assembly construction, comprising a support plate 5, two stabilizing hinges 6, two clamping components 7 and two steel cables 8, wherein the two stabilizing hinges 6 are symmetrically arranged and supported and buckled on two edges of the bottom surface of the prefabricated beam 4, respectively; the support plate 5 is supported on the bottom of the prefabricated beam 4 and centered between the two stabilizing hinges 6; the two clamping components 7 are symmetrically clamped and arranged on both sides of the top of the prefabricated beam 4; the clamping components 7, stabilizing hinges 6 and the support plate 5 are all located on the same vertical plane; two hanging cable columns 51 are protruding from the bottom surface of the support plate 5; and the two hanging cable columns 5 1 are symmetrically arranged, each of the stabilizing hinges 6 is provided with a group of mutually parallel wearing seats 1 64, each of the clamping components 7 is provided with a group of mutually parallel wearing seats 2 75, two steel cables 8 are folded in half and inserted in the wearing seats 1 64 and the wearing seats 2 75 located on the same side, the steel cables 8 are bent and sleeved on the hanging cable column 51, and the two ends of the single steel cable 8 are connected to each other in a closed state, which is used to be hung on the hook 9 of the lifting equipment. When the hook 9 is lifted, the two steel cables 8 can be straightened and tightened, and the prefabricated beam 4 can be lifted through the support plate 5, the stabilizing hinge 6 and the clamping component 7.

[0021] The stabilizing hinge 6 comprises a bolt 62, two hinge plates 61 and two rubber pads 63. The two hinge plates 61 are hingedly connected. One hinge plate 61 fits the bottom surface of the precast beam 4, and the other hinge plate 61 fits the side wall of the precast beam 4. Rubber pads 63 are fixedly arranged on the end surfaces of the two hinge plates 61 that are in contact with the precast beam 4. The two hinge plates 61 avoid the edges of the precast beam 4 at the corners by fixing rubber pads 63 with a certain thickness, ensuring that the edges of the precast beam 4 will not be damaged by force. The two hinge plates 61 are rotated and fitted on the bolts 62 to achieve hinge connection. The bolts 62 pass through the fitting holes of the other hinge plate 61 and are threadedly connected to the fitting holes of one hinge plate 61. The bolts 62 are screwed to lock the hinge joints of the two hinge plates 61, thereby locking the angle between the two hinge plates 61.

[0022] A group of the wearing seats 64 includes two wearing seats 64 , and the two wearing seats 64 are both arranged on the non-working end surface of a hinge plate 61 .

[0023] Loosen the bolts 62 to keep the two hinge plates 61 loose, fit the stabilizing hinge 6 as a whole to the bottom corner of the prefabricated beam 4, and fit the two hinge plates 61 to the bottom and side surfaces of the prefabricated beam 4, and then tighten the bolts 62 to clamp the two hinge plates 61 to achieve angle locking. Figure 6 In the cross-sectional structure shown, the thread of the bolt 62 engages with the thread of the leftmost set hole in the figure to achieve locking.

[0024] The clamping assembly 7 includes an adjusting screw 72 and two clamping plates 71. Both of the two clamping plates 71 are L-shaped. The concave sides of the two clamping plates 71 are arranged opposite to each other and clamped at the side edge of the precast beam 4. The adjusting screw 72 is installed between the two clamping plates 71. By screwing the adjusting screw 72 forward and backward respectively, the distance between the two clamping plates 71 can be adjusted to increase or decrease.

[0025] The installation end of the adjusting screw 72 is rotatably inserted into the upper clamping plate 71. A limit block is fixedly arranged at the end of the adjusting screw 72. The limit block realizes rotational abutment through an end face bearing 74. The setting of the end face bearing 74 is used to reduce frictional loss. An internal thread sleeve 73 is rotatably installed in the lower clamping plate 71. The internal thread sleeve 73 is axially limited in the clamping plate 71. The adjusting screw 72 is threadedly installed in the internal thread sleeve 73.

[0026] Two mounting seats two 75 are respectively arranged on the vertical side surfaces of the two clamping plates 71. The distances between the two pairs of mounting seats two 75 on the two clamping plates 71 are the same, and are the same as the distance between the two mounting seats one 64.

[0027] Avoidance grooves 76 are arranged at the corners of the concave sides of the two clamping plates 71. The avoidance grooves 76 can effectively prevent damage to the edges of the precast beam 4.

[0028] The two clamping plates 71 are buckled on the upper and lower edges of the side edge of the precast beam 4. The avoidance grooves 76 will avoid the edges to prevent damage due to force. By screwing the adjusting screw 72 to make the distance between the two clamping plates 71 decrease, the clamping assembly 7 can be clamped on the side edge of the precast beam 4. The internal thread sleeve 73 is axially limited in the clamping plate 71. There are balls between the internal thread sleeve 73 and the adjusting screw 72. The internal thread sleeve 73, the adjusting screw 72 and the balls together form a ball screw structure. By screwing the adjusting screw 72, the distance between the two clamping plates 71 can be adjusted.

[0029] Working principle:

[0030] Two clamping assemblies 7 are oppositely clamped at the upper side edges of both sides of the precast beam 4. The two stable hinges 6 are adjusted and locked according to the bottom corner angles of the specific precast beam 4 to be hoisted. Then, the two stable hinges 6 are respectively placed on the two bottom corner edges of the precast beam 4. The support plate 5 is placed at the bottom of the precast beam 4 and between the two stable hinges 6. The two steel cables 8 are respectively sleeved on the two cable hanging columns 51, sequentially pass through the mounting seats one 64 and the mounting seats two 75, and are finally hung on the hook 9.

[0031] The electric hoist 3 is arranged at the bottom of the pulley 2, and the hook 9 is fastened to the end of the lifting rope of the electric hoist 3. When the electric hoist 3 operates to wind up the lifting rope, the lifting equipment for fixing the cloth on the precast beam 4 is lifted through the hook 9, so as to lift the precast beam 4. The pulley 2 slides on the gantry 1 to lift and move the precast beam 4 to complete the assembly.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hoisting device for prefabricated beam assembly construction, characterized in that: The invention comprises a support plate (5), two stabilizing hinges (6), two clamping components (7) and two steel cables (8), wherein the two stabilizing hinges (6) are symmetrically arranged and supported and buckled on two edges of the bottom surface of the prefabricated beam (4), respectively; the support plate (5) is supported on the bottom of the prefabricated beam (4) and is centrally located between the two stabilizing hinges (6); the two clamping components (7) are symmetrically clamped and arranged on the two side edges of the top of the prefabricated beam (4); the clamping components (7), the stabilizing hinges (6) and the support plate (5) are all located on the same vertical plane; two hanging cable columns (51) are protruding from the bottom surface of the support plate (5); the two hanging cable columns (51) are symmetrically arranged, and each hanging cable column (51) is provided with a plurality of hanging cables. A group of mutually parallel insertion seats (64) is arranged on each of the stabilizing hinges (6), and a group of mutually parallel insertion seats (75) is arranged on each of the clamping assemblies (7). Two steel cables (8) are folded in half and inserted in the insertion seats (64) and the insertion seats (75) located on the same side. The steel cables (8) are mounted on the hanging cable column (51) at the bent point. The two ends of the single steel cable (8) are connected to each other in a closed state and are used to be hung on the hook (9) of the lifting equipment. When the hook (9) is lifted, the two steel cables (8) can be straightened and tightened, and the prefabricated beam (4) can be lifted through the support plate (5), the stabilizing hinge (6) and the clamping assembly (7).

2. The hoisting equipment for prefabricated beam assembly construction according to claim 1 is characterized in that: The stabilizing hinge (6) comprises a bolt (62), two hinge plates (61) and two rubber pads (63); the two hinge plates (61) are hingedly connected; one hinge plate (61) fits against the bottom surface of the precast beam (4); the other hinge plate (61) fits against the side wall of the precast beam (4); rubber pads (63) are fixedly arranged on the end surfaces of the two hinge plates (61) that are in contact with the precast beam (4); the two hinge plates (61) are rotatably sleeved on the bolt (62) to achieve hinged connection; the bolt (62) passes through the sleeve hole of the other hinge plate (61) and is threadedly connected to the sleeve hole of the one hinge plate (61); the bolt (62) is screwed to achieve locking of the hinge joints of the two hinge plates (61), thereby achieving locking of the angle between the two hinge plates (61).

3. The hoisting equipment for prefabricated beam assembly construction according to claim 2 is characterized in that: A group of the first wearing seat (64) comprises two first wearing seats (64), and the two first wearing seats (64) are both arranged on the non-working end surface of a hinge plate (61).

4. The hoisting equipment for prefabricated beam assembly construction according to claim 2 is characterized in that: The clamping assembly (7) comprises an adjusting screw (72) and two clamping plates (71). The two clamping plates (71) are both arranged in an L shape. The recessed sides of the two clamping plates (71) are arranged opposite to each other and clamped at the side edge of the prefabricated beam (4). The adjusting screw (72) is inserted between the two clamping plates (71). The adjusting screw (72) is screwed forward and backward respectively to increase or decrease the distance between the two clamping plates (71).

5. The hoisting equipment for prefabricated beam assembly construction according to claim 4 is characterized in that: The mounting end of the adjusting screw (72) is rotatably inserted into the clamping plate (71) located above, a limit block is fixedly arranged at the end of the adjusting screw (72), and the limit block is rotatably abutted by an end face bearing (74), and an internal thread sleeve (73) is rotatably installed in the clamping plate (71) located below, the internal thread sleeve (73) is axially limited in the clamping plate (71), and the adjusting screw (72) is threadedly inserted into the internal thread sleeve (73).

6. The hoisting equipment for prefabricated beam assembly construction according to claim 5 is characterized in that: Two second wearing seats (75) are respectively provided on the side elevations of the two clamping plates (71), and the two pairs of second wearing seats (75) respectively located on the two clamping plates (71) have the same spacing, and the same spacing as the two first wearing seats (64).

7. The hoisting equipment for prefabricated beam assembly construction according to claim 6 is characterized by: Avoidance grooves (76) are provided at the recessed side corners of the two clamping plates (71).

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