Safe-to-use lifting device for building construction

Abstract

The utility model discloses a safe-to-use lifting device for building construction, which belongs to the field of lifting devices and comprises a main support rod, the main support rod is fixedly mounted on a bottom support frame, a movable support is movably mounted on the bottom support frame, and the movable support consists of a movable base plate, a mounting square rod and an anti-falling stop block. The two mounting square rods are symmetrically and fixedly mounted at one end of the movable base plate, the two anti-disengaging check blocks are fixedly mounted at one ends of the two mounting square rods correspondingly, and the telescopic supporting structure is fixedly mounted at the upper end of the movable base plate. Therefore, the weight capable of being borne by the suspension arm can be increased, the probability that the suspension arm is bent or broken can be reduced, finally, the probability that lifted goods fall can be reduced, the cantilever crane is safer to use, meanwhile, the maintenance probability of the cantilever crane can be reduced, and the use cost of the cantilever crane is reduced.

Description

Technical Field

[0001] The utility model relates to the field of lifting devices, in particular to a lifting device for building construction which is safe to use. Background Art

[0002] A small cantilever crane for construction is a type of lifting equipment designed specifically for construction sites. It features high efficiency, energy saving, hassle-free operation, small footprint, and ease of operation and maintenance. Small cantilever cranes for construction are particularly suitable for short-distance, frequently used, and intensive lifting operations, and are widely used in various stages of construction sites. At the beginning of construction, cantilever cranes are used to transport and install building materials such as steel bars, concrete slabs, and beams; during the construction of high-rise buildings, cantilever cranes are used to lift structural components of buildings, such as floor assembly and steel frames. During the use of a cantilever crane, the boom that supports the lifted cargo is prone to bending or even breaking when it bears a large weight. On the one hand, a bent or broken boom will cause the lifted cargo to fall, which will create certain safety hazards. On the other hand, the boom needs to be repaired after bending, which will increase the cost of use. Therefore, a safe-to-use lifting device for construction is needed to solve the above problems. Summary of the Invention

[0003] The main purpose of the utility model is to provide a lifting device for construction that is safe to use and can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The lifting device for use in construction that is safe to use comprises a main support rod, wherein the main support rod is fixedly mounted on the bottom support frame, and a movable bracket is movably mounted on the bottom support frame, and the movable bracket consists of a movable base plate, a mounting square rod and an anti-slip block, and there are two mounting square rods that are symmetrically fixedly mounted on one end of the movable base plate, and there are two anti-slip blocks that are respectively fixedly mounted on one end of two mounting square rods, and a telescopic support structure is fixedly mounted on the upper end of the movable base plate, and the telescopic support structure consists of a fixed storage tube and a telescopic rod, and the telescopic rod is movably mounted on the fixed storage tube, and a buffer protection structure is fixedly mounted on the upper end of the telescopic rod, and the buffer protection structure consists of a U-shaped support frame, a buffer protection spring and a U-shaped protection cushion, and the U-shaped protection cushion is located in the U-shaped support frame, and there are three buffer protection springs that are all fixedly mounted on the U-shaped support frame and the U-shaped protection cushion.

[0006] Preferably, a suspension arm is installed at the upper end of the main support rod, and a square hole is opened at the front end of the bottom support frame.

[0007] Preferably, the movable base plate on the movable bracket is located on the front side of the bottom support frame, the mounting square rod is slidably mounted in a square hole opened on the bottom support frame, and the anti-slip block is located on the inner side of the bottom support frame.

[0008] Preferably, the fixed storage tube on the telescopic support structure is fixedly installed on the upper end of the movable base plate, a first through-hole is opened on the upper part of the fixed storage tube, and a plurality of second through-holes are evenly opened longitudinally on the telescopic rod. The fixed storage tube and the telescopic rod can be fixedly connected by bolts.

[0009] Preferably, the U-shaped support frame on the buffer protection structure is fixedly mounted on the upper end of the telescopic rod.

[0010] Preferably, the buffer protection spring on the buffer protection structure is fixedly connected to the inner wall of the U-shaped support frame and the outer wall of the U-shaped protection cushion.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By arranging a movable bracket, a telescopic support structure and a buffer protection structure, the suspension arm can be supported, thereby increasing the weight that the suspension arm can bear, thereby reducing the probability of the suspension arm bending or breaking, and ultimately reducing the probability of the suspended goods falling, making the cantilever crane safer to use, and at the same time reducing the probability of the cantilever crane being repaired, thereby reducing the cost of using the cantilever crane; the presence of the U-shaped protection pad and the buffer protection spring on the buffer protection structure can protect the suspension arm, thereby reducing the probability of the suspension arm colliding with the U-shaped support frame when shaking, thereby reducing the probability of damage to the suspension arm and the U-shaped support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a structural diagram of the mobile bracket, telescopic support structure and buffer protection structure of the utility model;

[0015] Figure 3 For the utility model Figure 2 A magnified view of point A;

[0016] Figure 4 For the utility model Figure 2 Magnified view of point B.

[0017] In the figure: 1. Main support rod; 2. Bottom support frame; 3. Mobile bracket; 4. Telescopic support structure; 5. Buffer protection structure; 6. Suspension arm; 7. Installation square rod; 8. Anti-slip block; 9. Fixed storage tube; 10. Telescopic rod; 11. First through-hole; 12. Second through-hole; 13. U-shaped support frame; 14. U-shaped protective cushion; 15. Buffer protection spring; 16. Mobile base plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, a safe lifting device for construction use includes a main support rod 1, which is fixedly mounted on a bottom support frame 2, a suspension arm 6 is mounted on the upper end of the main support rod 1, a square hole is opened at the front end of the bottom support frame 2, a movable bracket 3 is movably mounted on the bottom support frame 2, and the movable bracket 3 is composed of a movable base plate 16, a mounting square rod 7 and an anti-slip block 8. There are two mounting square rods 7 and they are symmetrically fixed on one end of the movable base plate 16, there are two anti-slip blocks 8 and they are respectively fixed on one end of the two mounting square rods 7, a telescopic support structure 4 is fixedly mounted on the upper end of the movable base plate 16, and the telescopic support structure 4 is composed of a fixed storage tube 9 and a telescopic rod 10, the telescopic rod 10 is movably mounted on the fixed storage tube 9, and the upper end of the telescopic rod 10 A buffer protection structure 5 is fixedly installed, and the buffer protection structure 5 consists of a U-shaped support frame 13, a buffer protection spring 15 and a U-shaped protection cushion 14. The U-shaped protection cushion 14 is located in the U-shaped support frame 13. There are three buffer protection springs 15 and they are all fixedly installed on the U-shaped support frame 13 and the U-shaped protection cushion 14. When in use, in order to make the lifting device safer to use, the mobile bracket 3, the telescopic support structure 4 and the buffer protection structure 5 can be used to support the suspension arm 6, thereby reducing the probability of the suspension arm 6 bending or breaking when lifting goods. The method of using the mobile bracket 3, the telescopic support structure 4 and the buffer protection structure 5 to support the suspension arm 6 is to first pull the mobile bracket 3 forward, so that the buffer protection structure The structure 5 is located directly below the required support position of the suspension arm 6, and then the height of the telescopic support structure 4 can be adjusted so that the U-shaped protective pad 14 on the buffer protection structure 5 contacts the suspension arm 6, and then the telescopic rod 10 is fixed to the fixed storage tube 9 with bolts, and the movable base plate 16 is fixed to the ground with bolts. At this time, the use of the mobile bracket 3, the telescopic support structure 4 and the buffer protection structure 5 to support the suspension arm 6 is completed. When the mobile bracket 3, the telescopic support structure 4 and the buffer protection structure 5 are no longer needed to support the suspension arm 6, the height of the telescopic support structure 4 can be lowered to move the buffer protection structure 5 to the bottom of the suspension arm 6, and then the mobile bracket 3, the telescopic support structure 4 and the buffer protection structure The structure 5 can be pushed toward the bottom support frame 2. By arranging the movable bracket 3, the telescopic support structure 4 and the buffer protection structure 5, the suspension arm 6 can be supported, thereby increasing the weight that the suspension arm 6 can bear, thereby reducing the probability of the suspension arm 6 bending or breaking, and ultimately reducing the probability of the lifted cargo falling, making the cantilever crane safer to use. At the same time, it can also reduce the probability of the cantilever crane being repaired, thereby reducing the cost of using the cantilever crane. The presence of the U-shaped protection pad 14 and the buffer protection spring 15 on the buffer protection structure 5 can protect the suspension arm 6, thereby reducing the probability of the suspension arm 6 colliding with the U-shaped support frame 13 when it shakes, thereby reducing the probability of damage to the suspension arm 6 and the U-shaped support frame 13.

[0020] Furthermore, the movable base plate 16 on the movable bracket 3 is located on the front side of the bottom support frame 2, the mounting square rod 7 is slidably installed in the square hole opened on the bottom support frame 2, and the anti-slip block 8 is located on the inner side of the bottom support frame 2. The movable bracket 3 plays a role of stabilizing support for the telescopic support structure 4 and the buffer protection structure 5. When in use, the movable base plate 16 on the movable bracket 3 can be fixed to the ground with bolts, thereby preventing the movable bracket 3 from being subjected to force and moving during use.

[0021] Furthermore, the fixed storage tube 9 on the telescopic support structure 4 is fixedly installed on the upper end of the movable base plate 16, and a first through-hole 11 is opened on the upper part of the fixed storage tube 9, and a plurality of second through-holes 12 are opened evenly longitudinally on the telescopic rod 10. The fixed storage tube 9 and the telescopic rod 10 can be fixedly connected by bolts. When the height of the telescopic support structure 4 as a whole needs to be adjusted, the bolts used to fix the telescopic rod 10 and the fixed storage tube 9 must be removed first, and then the telescopic rod 10 can be moved up and down. When the height of the telescopic rod 10 is appropriate, the bolts are used to pass through the first through-hole 11 and the second through-hole 12 to fix the fixed storage tube 9 and the telescopic rod 10 together. At this time, the height adjustment of the telescopic support structure 4 is completed.

[0022] Furthermore, the U-shaped support frame 13 on the buffer protection structure 5 is fixedly installed on the upper end of the telescopic rod 10, and the buffer protection spring 15 on the buffer protection structure 5 is fixedly connected to the inner wall of the U-shaped support frame 13 and the outer wall of the U-shaped protection pad 14. When the buffer protection structure 5 is mounted on the suspension arm 6 for use, if the suspension arm 6 shakes slightly, the U-shaped protection pad 14 and the buffer protection spring 15 can block and protect the suspension arm 6, thereby avoiding the suspension arm 6 from directly colliding with the U-shaped support frame 13, thereby reducing the probability of damage to the suspension arm 6 and the U-shaped support frame 13.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The scope of protection claimed in this utility model is defined by the attached claims and their equivalents.

Claims

1. A safe lifting device for construction, comprising a main support rod (1), wherein the main support rod (1) is fixedly mounted on a bottom support frame (2), and characterized in that: A movable bracket (3) is movably mounted on the bottom support frame (2), and the movable bracket (3) is composed of a movable base plate (16), a mounting square rod (7), and an anti-slip block (8). The mounting square rods (7) are provided in two pieces and are symmetrically fixedly mounted on one end of the movable base plate (16). The anti-slip block (8) is provided in two pieces and is respectively fixedly mounted on one end of the two mounting square rods (7). A telescopic support structure (4) is fixedly mounted on the upper end of the movable base plate (16), and the telescopic support structure (4) is composed of a fixed receiving tube (9) and a The telescopic rod (10) is movably mounted on a fixed receiving tube (9); a buffer protection structure (5) is fixedly mounted on the upper end of the telescopic rod (10); the buffer protection structure (5) is composed of a U-shaped support frame (13), a buffer protection spring (15) and a U-shaped protection cushion (14); the U-shaped protection cushion (14) is located in the U-shaped support frame (13); there are three buffer protection springs (15) and they are all fixedly mounted on the U-shaped support frame (13) and the U-shaped protection cushion (14).

2. A safe-to-use lifting device for construction according to claim 1, characterized in that: A suspension arm (6) is installed at the upper end of the main support rod (1), and a square hole is opened at the front end of the bottom support frame (2).

3. A safe-to-use lifting device for construction according to claim 2, characterized in that: The movable base plate (16) on the movable bracket (3) is located on the front side of the bottom support frame (2), the mounting square rod (7) is slidably mounted in a square hole opened on the bottom support frame (2), and the anti-slip block (8) is located on the inner side of the bottom support frame (2).

4. A safe-to-use lifting device for construction according to claim 3, characterized in that: The fixed receiving tube (9) on the telescopic support structure (4) is fixedly mounted on the upper end of the movable base plate (16); a first through-hole (11) is provided on the upper portion of the fixed receiving tube (9); a plurality of second through-holes (12) are uniformly provided longitudinally on the telescopic rod (10); and the fixed receiving tube (9) and the telescopic rod (10) can be fixedly connected by bolts.

5. A safe-to-use lifting device for construction according to claim 4, characterized in that: The U-shaped support frame (13) on the buffer protection structure (5) is fixedly mounted on the upper end of the telescopic rod (10).

6. A safe-to-use lifting device for construction according to claim 5, characterized in that: The buffer protection spring (15) on the buffer protection structure (5) is fixedly connected to the inner wall of the U-shaped support frame (13) and the outer wall of the U-shaped protection cushion (14).

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