Lifting appliance for revetment backfilling hollow square block

Abstract

The utility model relates to the technical field of coastline construction lifting appliances, in particular to a lifting appliance for a revetment backfilling hollow square block. The device comprises a hanging bracket which is fixedly connected with a hanging ring through a sling; clamping assemblies used for being connected with a hollow square preformed hole are symmetrically arranged on the hanging bracket, each clamping assembly comprises a left clamping rod, a right clamping rod, a rope ring sequentially penetrating through the upper end of the left clamping rod and the upper end of the right clamping rod and a pin shaft matched with the hollow square preformed hole, and the inner side walls of the lower ends of the left clamping rod and the right clamping rod are both fixedly connected with the pin shafts. The rope ring is arranged on the hanging bracket. When the device is used for connecting the hollow square block, only the left clamping rod and the right clamping rod need to be opened and closed, so that the connecting speed of the lifting appliance and the hollow square block is increased, and the lifting speed of lifting the hollow square block to a mounting position is indirectly increased to a certain extent; according to the device, the length of a rope can be adjusted according to the model and the weight of a hollow square block, the rope and a rope ring can be wound, and the situation that the ropes are crossed and wound is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coastline construction hoists, in particular to a hoist used for backfilling hollow blocks for bank protection. Background Art

[0002] During coastline improvement construction, vertical revetments are commonly used. Hollow blocks are a common type of revetment, typically placed on the outermost layer of offshore breakwaters or revetments to protect the coastline by attenuating wave impact. Hollow blocks offer advantages such as a low reinforcement ratio, reduced steel usage, the ability to backfill the cavity with stone, reduced concrete usage, aesthetically pleasing appearance, and low cost. They can also be installed in multiple layers. Hollow blocks can be manufactured in specialized prefabrication plants, significantly improving construction quality and efficiency.

[0003] When hoisting the hollow cubes, the workers need to install the pins on the reserved lifting holes on the front and rear walls, and then use wire sleeves and conventional hooks for lifting. However, this method requires the workers to install the pins and steel cables in sequence on the reserved lifting holes of the hollow cubes. During the construction process, there are many hollow cubes, and the workers need to install the pins and steel cables in sequence, which reduces the connection speed between the hollow cubes and the lifting equipment, indirectly reduces the lifting speed of the hollow cubes, and affects the construction efficiency. Utility Model Content

[0004] In order to solve the problems of the above-mentioned prior art, the utility model provides a hoist for revetment backfill hollow blocks, which can increase the connection speed between the hoist and the hollow blocks, and to a certain extent, indirectly increase the lifting speed of the hollow blocks to the installation position.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hanger for backfilling hollow blocks for revetment, comprising a hanger, which is fixedly connected to a lifting ring by a sling; a clamping assembly for connecting to a reserved hole in the hollow block is symmetrically arranged on the hanger, and the clamping assembly includes a left clamping rod and a right clamping rod hinged to each other in the middle, a rope ring passing through the upper ends of the left clamping rod and the right clamping rod in turn, and a pin shaft matching the reserved hole in the hollow block, and a connecting pin shaft is fixedly connected to the inner side wall of the lower end of the left clamping rod and the right clamping rod, and the rope ring is arranged on the hanger.

[0006] By adopting the above-mentioned structural design, the left clamping rod and the right clamping rod are opened so that the opening of the left clamping rod and the right clamping rod can correspond to the wall thickness of the hollow block. The left clamping rod and the right clamping rod are closed so that the pin shaft can be inserted into the reserved hole of the hollow block. After the hanger is lifted, the rope ring is tightened to further close the left clamping rod and the right clamping rod, while preventing the left clamping rod and the right clamping rod from opening. When connecting the hollow block, this device only needs to open and close the left clamping rod and the right clamping rod, which improves the connection speed between the hoist and the hollow block and, to a certain extent, indirectly improves the lifting speed of the hollow block to the installation position.

[0007] Preferably, the upper ends of the left clamp rod and the right clamp rod are folded upward, and the lower ends of the left clamp rod and the right clamp rod are folded downward. The upper and lower ends of the left clamp rod and the right clamp rod are parallel to the axial direction of the hollow block, and the pin shaft is perpendicular to the axial direction of the hollow block.

[0008] The above structural design makes it easy to insert the pin into the reserved hole on the hollow block.

[0009] Preferably, the width of the middle portion of the right clamp rod is greater than that of the middle portion of the left clamp rod, a long hole matching the middle portion of the left clamp rod is provided in the middle portion of the right clamp rod, and the middle portion of the left clamp rod is rotatably arranged in the long hole.

[0010] The above structural design can make the pins on the left clamping rod and the right clamping rod on the same axis, making it easy to insert the pins into the reserved holes at the same time and avoiding excessive expansion of the left clamping rod and the right clamping rod.

[0011] Preferably, a return spring is provided between the left clamping rod and the right clamping rod, the head end of the return spring is fixedly connected to the left clamping rod, and the tail end of the return spring is fixedly connected to the right clamping rod.

[0012] By adopting the above structural design, the initial state of the left clamping rod and the right clamping rod is a closed state. After the pin shaft is inserted into the reserved hole, the left clamping rod and the right clamping rod are automatically closed, further improving the connection speed between the sling and the hollow block, and avoiding the situation where the left clamping rod and the right clamping rod are opened under the influence of external force after they are closed.

[0013] Preferably, the hanger is rotatably connected to a reel, the reel is fixedly connected to a rope, the rope ring is fixedly connected to the rope, the hanger is fixedly connected to a pulley, and the rope passes around the pulley.

[0014] With the above structural design, the length of the rope can be adjusted according to the model and weight of the hollow block, and the rope and the rope ring can be reeled in to avoid the occurrence of cross-entanglement between the ropes.

[0015] Preferably, the rope ring includes a first steel cable and a movable ring fixedly connected to the free end of the first steel cable, the fixed end of the first steel cable passes through the upper end of the left clamping rod, the upper end of the right clamping rod and the movable ring in sequence, and the fixed end of the first steel cable is fixedly connected to the rope.

[0016] With the above structural design, during lifting, the left clamping rod and the right clamping rod can be further closed together so that the left clamping rod and the right clamping rod clamp the hollow block.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1) When connecting the hollow block, this device only needs to open and close the left clamping rod and the right clamping rod, which improves the connection speed between the sling and the hollow block and, to a certain extent, indirectly improves the lifting speed of the hollow block to the installation position.

[0019] 2) This device can adjust the length of the rope according to the model and weight of the hollow block, and can reel in the rope and rope ring to avoid cross-entanglement between the ropes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the clamping assembly of the utility model;

[0022] Figure 3 This is a structural diagram of the rope ring of the utility model; DETAILED DESCRIPTION

[0023] See also Figure 1 、 Figure 2 、 Figure 3 The utility model provides a technical solution: a hanger for backfilling hollow blocks for bank protection, comprising a hanger 1, which is a square frame, and the hanger 1 is fixedly connected to a lifting ring 12 by a lifting rope 11; a clamping assembly for connecting to a reserved hole of the hollow block is symmetrically arranged on the hanger 1, and the clamping assembly includes a left clamping rod 2 and a right clamping rod 3 hinged to each other in the middle, a rope ring 4 passing through the upper ends of the left clamping rod 2 and the right clamping rod 3 in turn, and a pin 5 matching the reserved hole of the hollow block, a lifting hole is provided at the upper ends of the left clamping rod 2 and the right clamping rod 3, and a pin 5 is fixedly connected on the inner side wall of the lower end of the left clamping rod 2 and the right clamping rod 3, and the rope ring 4 is arranged on the hanger 1.

[0024] In this embodiment, when the hollow block is prefabricated, two groups of reserved holes are set on the front and rear walls of the hollow block. In order to correspond to the number of reserved holes, four groups of clamping components are set and symmetrically arranged on both sides of the hanger 1.

[0025] The upper ends of the left clamping rod 2 and the right clamping rod 3 are folded upward, and the lower ends of the left clamping rod 2 and the right clamping rod 3 are folded downward. The upper and lower ends of the left clamping rod 2 and the right clamping rod 3 are parallel to the axial direction of the hollow block, and the pin shaft 5 is perpendicular to the axial direction of the hollow block.

[0026] The width of the middle portion of the right clamping rod 3 is greater than that of the middle portion of the left clamping rod 2 . A long hole 31 matching the middle portion of the left clamping rod 2 is provided in the middle portion of the right clamping rod 3 . The middle portion of the left clamping rod 2 is rotatably disposed in the long hole 31 .

[0027] A return spring 6 is provided between the left clamping rod 2 and the right clamping rod 3 , the head end of the return spring 6 is fixedly connected to the left clamping rod 2 , and the tail end of the return spring 6 is fixedly connected to the right clamping rod 3 .

[0028] The hanger 1 is rotatably connected to a reel 7 , the reel 7 is fixedly connected to a rope 71 , the rope ring 4 is fixedly connected to the rope 71 , the hanger 1 is fixedly connected to a pulley 72 , and the rope 71 passes over the pulley 72 .

[0029] The rope ring 4 includes a first steel cable 41 and a movable ring 42 fixedly connected to the free end of the first steel cable 41. The fixed end of the first steel cable 41 passes through the upper end of the left clamping rod 2, the upper end of the right clamping rod 3 and the movable ring 42 in sequence. The fixed end of the first steel cable 41 is fixedly connected to the rope 71.

[0030] Working principle: In the first step, the staff opens the left clamping rod 2 and the right clamping rod 3 so that the opening size of the left clamping rod 2 and the right clamping rod 3 corresponds to the thickness of the wall of the hollow block. Under the action of the return spring 6, the left clamping rod 2 and the right clamping rod 3 clamp the upper end of the hollow block. Then the staff moves the left clamping rod 2 and the right clamping rod 3 downward. When the pin 5 is on one side of the reserved hole of the hollow block, under the action of the return spring 6, the left clamping rod 2 and the right clamping rod 3 are further closed, and the pin 5 is inserted into the reserved hole.

[0031] In the second step, the staff operates the lifting mechanism so that the hook of the lifting mechanism hooks the lifting ring 12. After the hanger 1 is lifted, the rope ring is tightened, shortening the length between the first steel cable 41 and the movable ring 42, further closing the left clamping rod 2 and the right clamping rod 3 to prevent the left clamping rod and the right clamping rod from opening, and finally lifting the hollow block to the installation position.

[0032] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in this specification for the understanding and reading of those familiar with this technology. They are not used to limit the conditions for the implementation of this utility model and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose of the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of this utility model without substantially changing the technical content.

[0033] The present invention has been described above with reference to preferred embodiments. However, the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various improvements may be made to the present invention, and components may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, as long as there are no structural conflicts.

Claims

1. A sling for backfilling hollow blocks for bank protection, comprising a sling (1), characterized in that: The hanger (1) is fixedly connected to the lifting ring (12) through a lifting rope (11); a clamping assembly for connecting to a pre-set hole of a hollow block is symmetrically arranged on the hanger (1), and the clamping assembly comprises a left clamping rod (2) and a right clamping rod (3) hinged to each other at the middle, a rope ring (4) passing through the upper ends of the left clamping rod (2) and the right clamping rod (3) in sequence, and a pin shaft (5) matching the pre-set hole of the hollow block; the inner side walls of the lower ends of the left clamping rod (2) and the right clamping rod (3) are both fixedly connected to the pin shaft (5), and the rope ring (4) is arranged on the hanger (1).

2. A lifting device for backfilling hollow blocks for revetment according to claim 1, characterized in that: The upper ends of the left clamping rod (2) and the right clamping rod (3) are both folded upward, and the lower ends of the left clamping rod (2) and the right clamping rod (3) are both folded downward. The upper ends and lower ends of the left clamping rod (2) and the right clamping rod (3) are both parallel to the axial direction of the hollow block, and the pin shaft (5) is perpendicular to the axial direction of the hollow block.

3. The lifting device for backfilling hollow blocks for revetment according to claim 1, characterized in that: The width of the middle portion of the right clamping rod (3) is greater than the width of the middle portion of the left clamping rod (2); the middle portion of the right clamping rod (3) is provided with a long hole (31) that matches the middle portion of the left clamping rod (2); the middle portion of the left clamping rod (2) is rotatably arranged in the long hole (31).

4. A lifting device for backfilling hollow blocks for revetment according to any one of claims 1 to 3, characterized in that: A return spring (6) is provided between the left clamping rod (2) and the right clamping rod (3), the head end of the return spring (6) is fixedly connected to the left clamping rod (2), and the tail end of the return spring (6) is fixedly connected to the right clamping rod (3).

5. The lifting device for backfilling hollow blocks for revetment according to claim 1, characterized in that: The hanger (1) is rotatably connected to a reel shaft (7), the reel shaft (7) is fixedly connected to a rope (71), the rope ring (4) is fixedly connected to the rope (71), the hanger (1) is fixedly connected to a pulley (72), and the rope (71) passes around the pulley (72).

6. The lifting device for backfilling hollow blocks for revetment according to claim 5, characterized in that: The rope ring (4) includes a first steel cable (41) and a movable ring (42) fixedly connected to the free end of the first steel cable (41). The fixed end of the first steel cable (41) passes through the upper end of the left clamping rod (2), the upper end of the right clamping rod (3) and the movable ring (42) in sequence. The fixed end of the first steel cable (41) is fixedly connected to the rope (71).

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