Simple aerated concrete plate hoisting clamp

Abstract

The utility model discloses a simple aerated concrete plate hoisting clamp, which belongs to the technical field of hoisting devices and comprises a fixing frame, a hoisting ring, a main shaft, two groups of connecting arms, two clamping pieces and a locking mechanism, a strip-shaped hole is formed in the fixing frame; the main shaft is fixed to the bottom of the hanging ring, located in the strip-shaped hole and connected with the fixing frame in an up-down sliding mode. The middle parts of the clamping pieces are rotationally connected to the two sides of the fixing frame through lower rotating shafts respectively; the bottoms of the two connecting arms are rotationally connected with the main shaft, and the tops of the two connecting arms are rotationally connected with the tops of the two clamping pieces through upper rotating shafts correspondingly. And the locking mechanism is used for locking the main shaft after the plate is clamped by the clamping pieces. When the lifting appliance is used for lifting the plate, the plate does not need to be punched in the whole lifting process, the operation is convenient, and the structure of the plate cannot be damaged.

Description

Technical Field

[0001] This utility model belongs to the technical field of hoisting devices, specifically relating to a simple hoisting clamp for aerated concrete panels. Background Technology

[0002] Wall panels, floor slabs, and roof panels are important components of prefabricated buildings and the main types of fully prefabricated buildings in industrialized building systems. They also represent a bottleneck in the development of prefabricated buildings. Autoclaved aerated concrete (AAC) panels are porous concrete panels made primarily from fly ash (or silica sand), cement, and lime, cured under high-pressure steam. They are a high-performance new type of building material. AAC panels offer efficient and long-lasting thermal insulation, heat insulation, and fire resistance. Furthermore, their low density significantly reduces the structure's self-weight and earthquake response. They are currently widely used in the interior and exterior infill walls of various civil buildings and industrial plants.

[0003] However, hoisting autoclaved aerated concrete (AAC) lightweight concrete panels requires drilling holes in the panels and installing hoisting rings. For example, the integrated construction flexible connection assembly autoclaved aerated concrete exterior wall panel system disclosed in the utility model patent with authorization announcement number CN218541038U damages the structure of the panels and has low installation efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a simple hoisting clamp for aerated concrete panels, so as to solve the problems of existing aerated concrete panels generally requiring drilling, damaging the panel structure, and having low installation efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] This utility model relates to a simple aerated concrete panel hoisting clamp, which includes a fixed frame, a lifting ring, a main shaft, two sets of connecting arms, two clamping plates, and a locking mechanism. The fixed frame has a strip-shaped hole. The main shaft is fixed to the bottom of the lifting ring and is located in the strip-shaped hole and is slidably connected to the fixed frame vertically. The middle parts of the clamping plates are rotatably connected to both sides of the fixed frame via a lower rotating shaft. The bottoms of the two sets of connecting arms are rotatably connected to the main shaft, and the tops of the two sets of connecting arms are rotatably connected to the tops of the two clamping plates via an upper rotating shaft. The locking mechanism is used to lock the main shaft after the clamping plates clamp the panel.

[0007] Preferably, the locking mechanism includes a locking hook and a spring; the locking hook is rotatably connected to the fixed frame via a rotating shaft, and the locking hook is provided with a gripping part extending outside the fixed frame; one end of the spring is connected to the fixed frame, and the other end is connected to the locking hook.

[0008] Preferably, the locking mechanism includes a locking ring, which is rotatably connected to the inside of the fixed frame via a rotating shaft, and the locking ring is located directly below the main shaft. The locking ring has a gripping part extending out of the fixed frame, and a notch is provided in the radial direction of the locking ring, the width of which matches the diameter of the main shaft.

[0009] Preferably, anti-slip pads are provided on opposite sides of both clips.

[0010] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0011] This utility model relates to a simple aerated concrete panel lifting clamp with a slotted hole on the fixed frame. The main shaft is fixed to the bottom of the lifting ring, and the main shaft is located in the slotted hole and slidably connected to the fixed frame. The middle part of the clamping pieces is rotatably connected to both sides of the fixed frame through the lower rotating shaft. The bottom of both sets of connecting arms is rotatably connected to the main shaft, and the tops are rotatably connected to the tops of the two clamping pieces through the upper rotating shaft. After the locking mechanism is released, the lifting ring is lifted, and under the action of gravity, the main shaft at the bottom of the lifting ring moves upward relative to the slotted hole, which drives the bottom of the connecting arms to move upward and deflect. The tops of the two connecting arms expand outward, causing the clamping pieces to rotate along the lower rotating shaft. The bottom of the clamping pieces clamps the panel, and then the locking mechanism locks the main shaft. The entire lifting process does not require drilling holes in the panel, is easy to operate, and will not damage the structure of the panel. Attached Figure Description

[0012] Figure 1 This is a perspective view of the simple aerated concrete panel hoisting clamp involved in Example 1;

[0013] Figure 2 This is a front view of the simple aerated concrete panel hoisting clamp involved in Example 1;

[0014] Figure 3 This is a schematic diagram of the internal structure of the simple aerated concrete panel hoisting clamp involved in Example 1;

[0015] Figure 4 This is a schematic diagram illustrating the working principle of the simple aerated concrete panel hoisting clamp involved in Example 1;

[0016] Figure 5 This is a schematic diagram of the internal structure of the simple aerated concrete panel hoisting clamp involved in Example 2;

[0017] Figure 6 This is a diagram showing the locking state of the simple aerated concrete panel hoisting clamp involved in Example 2.

[0018] Reference numerals: 1-fixed frame, 11-strip hole, 2-lifting ring, 3-main shaft, 4-connecting arm, 5-clamping plate, 6-lower rotating shaft, 7-upper rotating shaft, 8-locking mechanism, 81-locking hook, 82-spring, 83-grip, 84-locking ring, 85-notch, 9-anti-slip pad. Detailed Implementation

[0019] To further understand the content of this utility model, the following embodiments are described in detail. The embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model. Example 1

[0020] See attached document Figures 1-3 As shown, the simple aerated concrete panel lifting clamp involved in this embodiment includes a fixed frame 1, a lifting ring 2, a main shaft 3, two sets of connecting arms 4, two clamping plates 5, and a locking mechanism 8. The fixed frame 1 is provided with a strip hole 11. The main shaft 3 is fixed to the bottom of the lifting ring 2, and the main shaft 3 is located in the strip hole 11 and is slidably connected to the fixed frame 1. The middle part of the clamping plates 5 is rotatably connected to both sides of the fixed frame 1 through a lower rotating shaft 6. The bottom of both sets of connecting arms 4 is rotatably connected to the main shaft 3, and the top of both sets of connecting arms 4 is rotatably connected to the top of the two clamping plates 5 through an upper rotating shaft 7. The locking mechanism 8 is used to lock the main shaft 3 after the clamping plates 5 clamp the panel. Anti-slip pads 9 are provided on opposite sides of the two clamping plates 5 to improve the friction between the clamping plates 5 and the panel.

[0021] The locking mechanism 8 involved in this embodiment includes a locking hook 81 and a spring 82. The locking hook 81 is rotatably connected to the fixed frame 1 via a rotating shaft. The locking hook 81 is provided with a gripping part 83 extending outside the fixed frame 1. One end of the spring 82 is connected to the fixed frame 1, and the other end is connected to the locking hook 81.

[0022] The state of the simple aerated concrete panel hoisting clamp involved in this embodiment before use is as follows: Figure 3 As shown, the locking hook 81 hooks the main shaft 3, at which point the main shaft 3 cannot move up or down relative to the fixed frame 1. When it is necessary to use a clamp to lift the plate, the locking hook 81 is rotated by the gripping part 83, and the spring 82 is stretched, the locking hook 81 separates from the main shaft 3, thereby releasing the locking mechanism 8. Then the lifting ring 2 is lifted, and under the action of gravity, the main shaft 3 at the bottom of the lifting ring 2 moves upward relative to the strip hole 11. The main shaft 3 moves to at least a position higher than the locking hook 81. During the upward movement of the main shaft 3, the bottom of the connecting arm 4 moves upward and deflects. The tops of the two connecting arms 4 expand outward, causing the clamping plate 5 to rotate along the lower rotating shaft 6. The bottom of the clamping plate 5 clamps the plate, such as Figure 4As shown; finally, release the gripping part 83, and the spring 82 retracts and resets the locking hook 81. At this time, the top surface of the locking hook 81 holds the main shaft 3, preventing the main shaft 3 from moving downward. Then, the locking mechanism 8 re-locks the main shaft 3 to prevent the clamping piece 5 from loosening. Continue to lift the lifting ring 2 to complete the hoisting of the plate. Example 2

[0023] The simplified aerated concrete panel hoisting fixture involved in this embodiment includes a fixed frame 1, a lifting ring 2, a main shaft 3, two sets of connecting arms 4, two clamping plates 5, and a locking mechanism 8. The fixed frame 1 has a slotted hole 11. The main shaft 3 is fixed to the bottom of the lifting ring 2, and is located within the slotted hole 11 and slidably connected to the fixed frame 1. The middle portions of the clamping plates 5 are rotatably connected to both sides of the fixed frame 1 via a lower rotating shaft 6. The bottoms of both sets of connecting arms 4 are rotatably connected to the main shaft 3, and the tops of both sets of connecting arms 4 are rotatably connected to the tops of the two clamping plates 5 via an upper rotating shaft 7. The locking mechanism 8 is used to lock the main shaft 3 after the clamping plates 5 clamp the panel. Anti-slip pads 9 are provided on opposite sides of the two clamping plates 5 to improve friction between the clamping plates 5 and the panel.

[0024] See attached document Figure 5 and 6 As shown, the locking mechanism 8 in this embodiment includes a locking ring 84, which is rotatably connected to the inside of the fixing frame 1 via a rotating shaft, and the locking ring 84 is located directly below the main shaft 3. The locking ring 84 is provided with a gripping part 83 extending out of the fixing frame 1, and a notch 85 is provided in the radial direction of the locking ring 84. The width of the notch 85 matches the diameter of the main shaft 3. The so-called matching means that the width of the notch 85 is slightly larger than the diameter of the main shaft 3.

[0025] The state of the simple aerated concrete panel hoisting clamp involved in this embodiment before use is as follows: Figure 5 As shown, notch 85 is vertical and corresponds vertically to the main shaft 3. Notch 85 is connected to the strip hole, and the main shaft 3 is located inside notch 85. When it is necessary to use a clamp to lift the plate, the lifting ring 2 is lifted. Under the action of gravity, the main shaft 3 at the bottom of the lifting ring 2 moves upward relative to the strip hole 11. The main shaft 3 moves at least out of notch 85. During the upward movement of the main shaft 3, the bottom of the connecting arm 4 moves upward and deflects. The tops of the two connecting arms 4 expand outward, causing the clamping plate 5 to rotate along the lower rotating shaft 6. The bottom of the clamping plate 5 clamps the plate. At this time, by rotating the locking ring 84 through the gripping part 83, the notch 85 rotates at a certain angle. The outer ring of the notch 85 supports the main shaft 3, preventing the main shaft 3 from moving downward, thereby locking the main shaft 3 and preventing the clamping plate 5 from loosening. Figure 6 As shown; at this time, the top surface of the locking hook 81 supports the main shaft 3 and continues to lift the lifting ring 2, thus completing the lifting of the plate.

[0026] The present invention has been described in detail above with reference to the embodiments. However, the description is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made in accordance with the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A simple aerated concrete panel hoisting clamp characterized in that: It includes a fixed frame, a lifting ring, a main shaft, two sets of connecting arms, two clamping plates, and a locking mechanism. The fixed frame has a slotted hole. The main shaft is fixed to the bottom of the lifting ring and is located in the slotted hole, slidingly connected to the fixed frame vertically. The middle parts of the clamping plates are rotatably connected to both sides of the fixed frame via a lower rotating shaft. The bottoms of the two sets of connecting arms are rotatably connected to the main shaft, and the tops of the two sets of connecting arms are rotatably connected to the tops of the two clamping plates via an upper rotating shaft. The locking mechanism is used to lock the main shaft after the clamping plates clamp the plate.

2. The lightweight concrete panel lifting clamp of claim 1, wherein: The locking mechanism includes a locking hook and a spring; the locking hook is rotatably connected to the fixed frame via a rotating shaft, and the locking hook is provided with a gripping part extending outside the fixed frame; one end of the spring is connected to the fixed frame, and the other end is connected to the locking hook.

3. The lightweight concrete panel lifting fixture of claim 1, wherein: The locking mechanism includes a locking ring, which is rotatably connected to the inside of the fixed frame via a rotating shaft and is located directly below the main shaft. The locking ring has a gripping part extending out of the fixed frame, and a notch is provided in the radial direction of the locking ring, the width of which matches the diameter of the main shaft.

4. The lightweight concrete panel lifting fixture of claim 1, wherein: Both clips have anti-slip pads on opposite sides.

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