Square pile lifting connection anti-falling device

Abstract

The utility model relates to the field of building construction, in particular to a square pile lifting connection anti-falling device which comprises a hoop, the hoop comprises two hoop plates, one ends of the two hoop plates are hinged, the other ends of the two hoop plates are detachably connected, the square pile lifting connection anti-falling device further comprises a rubber ring, and the rubber ring can be attached to the outer wall of a square pile. An opening allowing the square pile to be embedded therein is formed in the position, close to the detachably-connected side of the two hoop plates, of the rubber ring. According to the scheme, the rubber ring is arranged between the hoop plate and the square pile, so that the square pile can be prevented from being in direct contact with the hoop plate through the rubber ring, the corner of the square pile is effectively protected, meanwhile, the square pile is wrapped by the elastic rubber ring and is not prone to sliding relative to the hoop plate, and the square pile is kept stable in the hoisting process.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an anti-dropping device for connecting a square pile during pile hoisting. Background Technique

[0002] Rail transit is set within a city. Restricted by terrain and design planning, open-cut construction is mostly adopted for rail transit. Before the foundation pit is excavated, retaining piles need to be constructed in advance around the foundation pit. In areas with rich groundwater, even retaining pile biting construction is required. Under the general trend of the country's strong advocacy of new green, low-carbon and environmentally friendly technologies, as well as prefabrication and factoryization, precast retaining piles have gradually been applied and are showing an increasingly popular trend; the precast pile process adopts the conventional drilling and hole-forming process. After the precast pile is lowered, cement soil or the like is used to fill the gap between the pile and the hole to form support and water retention against the surrounding soil, thus protecting the safety of foundation pit construction.

[0003] When hoisting prefabricated pile foundations and adjusting the relative state between the pile foundations and the pile foundation holes, a crane is used to hoist the pile foundations. Conventional pile foundations are generally cylindrical and are connected to the crane after being clamped and fixed by a hoop. However, when facing square piles, the inner wall of the hoop contacts the corner of the longitudinal section of the square pile, which easily causes excessive local contact pressure at the corner of the square pile and results in damage, thereby affecting the cross-sectional size of the square pile and the overall integrity and strength of the square pile. Summary of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides an anti-dropping device for connecting a square pile during pile hoisting to solve the problem that when the cylindrical hoop contacts the corner of the square pile, excessive local contact pressure at the corner of the square pile causes damage, affecting the overall integrity and strength of the square pile.

[0005] To achieve the above object, the basic scheme of the utility model is as follows: An anti-dropping device for connecting a square pile during pile hoisting includes a hoop, the hoop includes two hoop plates, one ends of the two hoop plates are hinged, and the other ends of the two hoop plates are detachably connected. It further includes:

[0006] A rubber ring, the rubber ring can be attached to the outer wall of the square pile, and an opening for the square pile to be inserted is provided on one side of the rubber ring close to the detachably connected side of the two hoop plates.

[0007] The technical principle of the utility model is as follows: When clamping the square pile, the two hoop plates are opened. At this time, the elastic rubber ring can also be bent under the drive of the hoop plates, and its opening is in an open state. The square pile is inserted into the rubber ring from the opening; the rubber ring has elasticity and can wrap and contact the side wall of the square pile. A rubber ring is provided between the hoop plate and the square pile, so that the rubber ring can prevent the square pile from directly contacting the hoop plate. The corner of the square pile is effectively protected. At the same time, the square pile is not easily relatively slid with the hoop plate under the wrapping of the elastic rubber ring, so that the square pile remains stable during the hoisting process.

[0008] Further, the longitudinal cross-sectional profile of the rubber ring is in an "n" shape, and the opening is located on the lower side of the rubber ring.

[0009] With the above settings, the rubber ring can be more stably distributed between the hoop plates, and the "n" shape setting makes it more convenient for the opening to be directly opposite to the detachable connection end of the hoop plate, facilitating the embedding of the square pile into the rubber ring.

[0010] Further, flanges are fixedly arranged at both ends of the opening of the rubber ring, and the inner wall of the flange is perpendicular to the inner walls at both ends of the rubber ring.

[0011] With the above settings, the flange and the two ends of the rubber ring cooperate to fit with the right-angle part of the outer wall of the square pile, protecting each corner of the square pile.

[0012] Further, a fixing ring fixedly connected to the crane is arranged on the outer wall of the single-sided hoop plate. The fixing ring is located at the middle of the outer wall of the hoop plate, and the fixing rings on the two hoop plates are arranged oppositely.

[0013] With the above settings, when the crane hoists the square pile through the fixing ring, the fixing rings on the two hoop plates are both subjected to tensile forces, making the two sides of the square pile balanced in force during hoisting, and the square pile is not easy to shake and shift.

[0014] Further, an embedding groove for the corners of the rubber ring and the flange to be embedded is arranged on the inner wall of the hoop plate.

[0015] With the above settings, the embedding groove can more stably limit the rubber ring and the flange, making the rubber ring and the flange stably installed on the anti-detachment device.

[0016] Further, the inner wall of the corner on the side of the rubber ring away from the flange has an arc transition.

[0017] With the above settings, the arc transition can contact the corner of the square pile more smoothly, giving the bending part of the rubber ring better elasticity.

[0018] Further, the rubber ring and the flange are integrally formed, and the thickness of the flange is the same as that of the rubber ring. The end face of the rubber ring and the end face of the flange are in smooth transition.

[0019] With the above settings, the cooperation between the rubber ring and the flange is more stable, and it is easier to stably support the square pile.

[0020] Further, the hoop plate includes several arc-shaped clamping hoop segments, and the clamping hoop segments are hinged to each other.

[0021] With the above settings, when installing the anti - falling device for connecting the lifting of square piles to the square pile, place the square pile on the sleeper to form a gap between the ground and the square pile. At this time, open the two hoop plates. At this time, the hinge joints between several hoop sections on a single hoop plate can also rotate, making the single hoop plate in an unfolded state, which is more convenient to pass through the relatively small gap formed between the ground and the square pile. Furthermore, it is more convenient to install the anti - falling device on the large - volume and heavy - mass square pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic structural diagram in the axonometric direction of the anti - falling device for connecting the lifting of square piles in the embodiment of the present utility model.

[0023] In the above - mentioned drawings: hoop 10, hoop plate 101, bolt 102, fixing ring 103, embedding groove 104, hoop section 105, rubber ring 20, flange 30. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] This embodiment is basically as Figure 1 shown. The embodiment of the present utility model proposes an anti - falling device for connecting the lifting of square piles, including a hoop 10, a rubber ring 20 and a flange 30. The hoop 10 includes two hoop plates 101. One end of the two hoop plates 101 is hinged through a hinge, and the other end of the two hoop plates 101 is detachably connected through a wing plate, a tie - bar plate and a bolt 102. At the same time, as Figure 1 shown, the hoop plate on one side includes three arc - shaped hoop sections. The hoop sections are hinged between each other, and the rotation axis of the hinge between the hoop sections is parallel to the rotation axis of the hinge between the hoop plates.

[0026] As Figure 1 shown, the rubber ring 20 can be attached to the outer wall of the square pile. An opening for the square pile to be embedded is provided on the side of the rubber ring 20 close to the detachable connection of the two hoop plates 101. The longitudinal section profile of the rubber ring 20 is in an "n" shape, and the opening is located on the lower side of the rubber ring 20. Flanges 30 are integrally formed at both ends of the opening of the rubber ring 20. The thickness of the flange 30 is the same as the thickness of the rubber ring 20. The end face of the rubber ring 20 and the end face of the flange 30 are smoothly transitioned. The inner wall of the flange 30 is perpendicular to the inner walls at both ends of the rubber ring 20.

[0027] As Figure 1 shown, a fixing ring 103 fixedly connected to the crane is integrally formed on the outer wall of the hoop plate 101 on one side. The fixing ring is located in the middle of the outer wall of the hoop plate, and the fixing rings on the two hoop plates are arranged oppositely. At the same time, the thickness of the flange 30 and the thickness of the rubber ring 20 are both smaller than the thickness of the hoop plate 101. Embedding grooves 104 for the corners of the rubber ring 20 and the flange 30 to be embedded are provided on the inner walls of the two hoop plates 101.

[0028] In addition, the inner wall of the rubber ring 20 at the corner on the side away from the flange 30 has an arc transition.

[0029] When the anti - detachment device for lifting and connecting square piles in this embodiment is in use, place the square pile on the sleeper to form a gap between the ground and the square pile. At this time, loosen the bolts on the two hoop plates, and the elastic rubber ring can also be bent driven by the hoop plates, and its opening is in an open state; at this time, the hinge joints between several hoop segments on a single hoop plate can also rotate, making the single hoop plate in an unfolded state, which is more convenient to pass through the relatively small gap formed between the ground and the square pile, and thus it is more convenient to install the anti - detachment device on the large - volume and heavy - mass square pile; then install the hoop 10 on the square pile, and the square pile is inserted into the rubber ring 20 from the opening, and the side of the square pile close to the opening of the rubber ring 20 can compress the flange 30, and then be inserted into the right angle formed by the flange 30 and the rubber ring 20, so that the corner of the square pile is stably wrapped by the flange 30 and the rubber ring 20.

[0030] Then lock the two hoop plates 101 through the wing plates, tie - bar plates and the bolts 102. The hoop plates 101 can synchronously drive the flange 30 and the rubber ring 20 to press the square pile tightly, so that the square pile is not likely to slide relative to the hoop plates 101 under the wrapping of the elastic rubber ring 20 and the flange 30; when hoisting the square pile, the crane hoists the square pile through the fixed ring, and the fixed rings on the two hoop plates are both subjected to tensile forces, making the two - side forces of the square pile balanced during hoisting, and the square pile is not likely to shake and shift, so that the square pile remains stable during the hoisting process, and at the same time, the pressure can be stably transmitted to the side of the square pile, effectively protecting the corner of the square pile.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A square pile hanging pile connection anti-falling device, comprising a hoop, wherein the hoop comprises two hoop plates, one end of the two hoop plates is hinged, and the other end of the two hoop plates is detachably connected, characterized in that: Also includes: A rubber ring can be fitted with the outer wall of the square pile, and an opening for the square pile to be embedded is provided on one side of the rubber ring close to the detachable connection of the two hoop plates.

2. The square pile hanging pile connection anti-falling device according to claim 1, characterized in that: The longitudinal section profile of the rubber ring is in an "n" shape, and the opening is located at the lower side of the rubber ring.

3. The square pile hanging pile connection anti-falling device according to claim 2, characterized in that: Flanges are fixedly arranged at both ends of the opening of the rubber ring, and the inner walls of the flanges are perpendicular to the inner walls of the two ends of the rubber ring.

4. The square pile hanging pile connection anti-falling device according to claim 3, characterized in that: A fixing ring fixedly connected to the crane is fixedly arranged on the outer wall of the hoop plate on one side, the fixing ring is located in the middle of the outer wall of the hoop plate, and the fixing rings on the two hoop plates are arranged opposite to each other.

5. The square pile hanging pile connection anti-falling device according to claim 4, characterized in that: The inner wall of the hoop plate is provided with an embedding groove for the rubber ring and the corner of the flange to be embedded.

6. The square pile hanging pile connection anti-falling device according to claim 5, characterized in that: The inner wall of the rubber ring at a corner away from the flange has an arc transition.

7. The square pile hanging pile connection anti-falling device according to claim 6, characterized in that: The rubber ring and the flange are integrally formed, and the thickness of the flange is consistent with that of the rubber ring. The end face of the rubber ring and the end face of the flange are smoothly transitioned.

8. The square pile hanging pile connection anti-falling device according to any one of claims 1 to 6, characterized in that: The hoop plate comprises a plurality of arc-shaped hoop segments, and the hoop segments are hinged to each other.

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