A kind of anti-falling casing for pile foundation construction

Abstract

The utility model discloses a kind of anti-falling casing for pile foundation construction, including casing body and steel protective net, respectively on the both sides of protective net, the both sides of casing body top symmetry welds on hole steel plate, then using dowel is inserted into the mounting hole of hole steel plate to make protective net and casing body be connected fixed, form a kind of protective net's anti-falling casing.Casing body is placed on pile hole in the existing construction process, so it does not need to increase the workload of installing casing body, top protective net can be connected with casing body only by a dowel, so that protective net can rotate 360 °, it will not affect drilling construction, while it can prevent protective net from being lost, play the role of reminding operator timely protection;Two dowels can firmly close the top of casing body, achieve the effect of "one casing one protection", prevent people or large pieces of foreign matter from falling, can effectively reduce the exposure time of pile hole opening, promptly eliminate pile hole falling hazards.

Description

Technical Field

[0001] This utility model belongs to the field of rotary drilling pile construction technology, and in particular relates to a fall-prevention casing for pile foundation construction. Background Technology

[0002] During the construction of rotary drilling piles, especially in the four stages from the installation of the casing to the drilling rig before drilling, from the completion of the hole to the lowering of the reinforcing cage, from the lowering of the reinforcing cage to the pouring of concrete, and when the drilling rig is being refueled during the drilling process, the pile hole opening is easily exposed and left unprotected, posing certain risks to the construction process. Summary of the Invention

[0003] To address the aforementioned problems, this utility model provides a fall-prevention casing for pile foundation construction, which can effectively reduce the exposure time of the pile hole opening, promptly eliminate the potential for pile hole collapse, thereby solving the problems mentioned in the background art and reducing the risks during the construction process.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A fall-prevention casing for pile foundation construction includes a hollow casing body and a rigid protective net. The top of the casing body is provided with a first mounting structure, and the protective net is provided with a second mounting structure. The first mounting structure and the second mounting structure are movably connected, so that the protective net is movably installed on the top of the casing body. The fall-prevention structure at the top port of the casing body is formed by means of the protective net installed on the top of the casing body.

[0006] In one embodiment, at least two first perforated steel plates are welded to the outer wall of the casing body, and the first perforated steel plates are arranged at intervals along the circumference of the casing body to form the first mounting structure; at least two second perforated steel plates corresponding to the first perforated steel plates are welded to the outer side of the protective net, and the second perforated steel plates form the second mounting structure. The first perforated steel plates and the second perforated steel plates are respectively provided with mounting holes, and a connector is also provided that is detachably inserted through the mounting holes of the first perforated steel plates and the mounting holes of the second perforated steel plates to make the first mounting structure and the second mounting structure movably connected.

[0007] In one embodiment, the connector is a pin, the mounting hole is a through hole, and the protective net is rotatably mounted on the top of the casing body by connecting a first perforated steel plate and a second perforated steel plate.

[0008] In one embodiment, the pin includes a pin shaft portion and a head, the outer diameter of the head being larger than the outer diameter of the pin shaft portion, the outer diameter of the pin shaft portion being smaller than the diameter of the mounting hole, and the outer diameter of the head being larger than the diameter of the mounting hole, thereby forming a protective net that is rotatable relative to the casing body when only one pin connects a first perforated steel plate and a second perforated steel plate.

[0009] In one embodiment, there are two first perforated steel plates, symmetrically welded to both sides of the top of the casing body; and two second perforated steel plates, symmetrically welded to both sides of the protective net.

[0010] In one embodiment, the top of the first perforated steel plate is flush with the top of the casing body, the thickness of the second perforated steel plate is greater than the thickness of the protective net, and the top of the second perforated steel plate is flush with the top of the protective net, thereby forming a gap between the protective net and the top surface of the casing body to prevent hand pinching.

[0011] In one embodiment, the protective net is a circular mesh, the protective cylinder body is a cylindrical structure, and the outer diameter of the protective net is equal to the outer diameter of the protective cylinder body.

[0012] In one embodiment, the protective net has mesh openings that are small enough to prevent a person's feet from falling into the mesh.

[0013] In one embodiment, the protective net is a steel mesh panel.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model reduces the exposure time of the pile hole opening by installing a protective net on the top of the casing body, thereby reducing the risks during construction. Since the casing body is placed on the pile hole during the existing construction process, there is no need to increase the workload of installing the casing body. It only requires modifying the casing body to install a first installation structure on it, and then installing the protective net at the top port of the casing body to prevent people or large foreign objects from falling. This effectively reduces the exposure time of the pile hole opening, eliminates the hidden danger of pile hole falling in time, and achieves the protective function of preventing falling. Furthermore, since the casing body and the protective net are installed movably, the protective net can be removed to expose the top port of the casing body when necessary, such as when drilling, lowering the reinforcing cage, or pouring concrete.

[0016] 2. The casing body and the protective net are fixed by a multi-point connection formed by pins, a first perforated steel plate and a second perforated steel plate. When it is necessary to expose the top end of the casing body, only one pin is connected to a first perforated steel plate and a second perforated steel plate to form a single-point connection, so that the protective net can rotate around the connection point of the single-point connection, thereby exposing the top end of the casing body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the protective sleeve body according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the protective netting according to an embodiment of the present utility model;

[0019] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0020] In the figure: 1. Casing body; 11. First perforated steel plate; 2. Protective net; 21. Second perforated steel plate; 3. Pin; 31. Pin shaft; 32. Head. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] This utility model provides a fall-prevention casing for pile foundation construction, such as... Figures 1 to 3 As shown, it includes a hollow protective casing 1 and a rigid protective net 2. The top of the protective casing 1 is provided with a first mounting structure, and the protective net 2 is provided with a second mounting structure. The first mounting structure and the second mounting structure are movably connected, so that the protective net 2 is movably mounted on the top of the protective casing 1. By means of the protective net 2 being mounted on the top of the protective casing 1, a fall prevention structure is formed to block the top port of the protective casing 1.

[0024] This invention reduces the exposure time of the pile hole opening by installing a protective net 2 on the top of the casing body 1, thereby lowering the risks during construction. Since the casing body 1 is already placed on the pile hole during the existing construction process, there is no need to increase the workload of installing the casing body 1. Only the casing body 1 needs to be modified to install a first installation structure, and then the protective net 2 is installed at the top port of the casing body 1 to prevent people or large foreign objects from falling in. This effectively reduces the exposure time of the pile hole opening, promptly eliminates the risk of pile hole falls, and achieves the protective function of preventing falls. Furthermore, since the casing body 1 and the protective net 2 are movably installed, the protective net 2 can be removed to expose the top port of the casing body 1 when necessary, such as during drilling, lowering of the reinforcing cage, or pouring of concrete.

[0025] At least two first perforated steel plates 11 are welded to the outer wall of the casing body 1, and the first perforated steel plates 11 are arranged at intervals along the circumference of the casing body 1 to form a first mounting structure; at least two second perforated steel plates 21 corresponding to the first perforated steel plates 11 are welded to the outer side of the protective net 2, and the second perforated steel plates 21 form a second mounting structure. The first perforated steel plates 11 and the second perforated steel plates 21 are respectively provided with mounting holes, and a connector is also provided that can be detachably inserted through the mounting holes of the first perforated steel plates 11 and the second perforated steel plates 21, so that the first mounting structure and the second mounting structure are movably connected. More specifically: the connector is a pin 3, the mounting hole is a through hole, and the protective net 2 is rotatably installed on the top of the casing body 1 through the connection of a first perforated steel plate 11 and a second perforated steel plate 21.

[0026] In this example, there are two first perforated steel plates 11, symmetrically welded to both sides of the top of the casing body 1; and two second perforated steel plates 12, symmetrically welded to both sides of the protective net 2. When it is necessary to fix the protective net 2, the two first perforated steel plates 11 and the two second perforated steel plates 12 are aligned one-to-one, and pins are inserted into their mounting holes to fix the protective net 2. When it is necessary to remove the protective net 2, only one pin 3 is inserted into the mounting hole of one of the first perforated steel plates 11 and one of the second perforated steel plates 12, allowing the protective net 2 to rotate 360° around the casing body 1. This creates a rotatable connection between the casing body 1 and the protective net 2, which does not affect drilling operations and prevents the protective net 2 from being lost, serving as a reminder to workers to take timely precautions. In other embodiments, the number of first perforated steel plates 11 and second perforated steel plates 21 can be two or more, for example, three, thus creating a multi-point connection between the casing body 1 and the protective net 2 to fix the protective net 2.

[0027] The pin 3 includes a pin shaft portion 31 and a head 32. The outer diameter of the head 32 is larger than the outer diameter of the pin shaft portion 31. The outer diameter of the pin shaft portion 31 is smaller than the diameter of the mounting hole, and the outer diameter of the head 32 is larger than the diameter of the mounting hole. Thus, when only one pin 3 connects a first perforated steel plate 11 and a second perforated steel plate 21, a protective net 2 is formed that can rotate relative to the casing body 1.

[0028] The top of the first perforated steel plate 11 is flush with the top of the casing body 1. The thickness of the second perforated steel plate 21 is greater than the thickness of the protective net 2, and the top of the second perforated steel plate 21 is flush with the top of the protective net 2, thus forming a gap between the protective net 2 and the top surface of the casing body 1 to prevent fingers from being pinched. In this example, the protective net 2 is a circular mesh, the casing body 1 is a cylindrical structure, and the outer diameter of the protective net 2 is equal to the outer diameter of the casing body 1. The protective net 2 is further preferably a steel mesh, and the casing body 1 is a steel casing. Steel mesh has high strength, is not easily damaged, can adapt to complex and harsh construction environments, and can provide good protection.

[0029] The protective net 2 has mesh 22, which is small to prevent personnel's feet from falling into the mesh. The size of the mesh 22 can be changed according to the usage requirements. This utility model is mainly to prevent large foreign objects and people from falling from the top port of the casing body into the pile hole. Construction personnel will also stand on the protective net 2 when necessary. Therefore, the size of the mesh that can prevent personnel's feet from falling into it is selected. Of course, the smaller the mesh, the better the protective effect. However, if the mesh is too small, it means more steel, and the weight of the protective net 2 will be greater, which is not conducive to installation and fixation. Therefore, the size of the mesh should be appropriate. In this example, a size that can prevent personnel's feet from falling into it is selected. In addition, another reason for using steel mesh as the protective net in this utility model is that steel mesh is low in cost and easy to obtain for construction scenarios. It is also easier to connect with other steel materials and has less impact on construction facilities.

[0030] The application process of this utility model includes: symmetrically welding first perforated steel plates 11 to both sides of the casing body 1, and symmetrically welding second perforated steel plates 21 to both sides of the protective net 2. Then, the protective net 2 with the second perforated steel plates 21 is placed on top of the casing body 1, aligning the mounting holes on the first and second perforated steel plates 11 and 21. Pins 3 are then inserted into the aligned mounting holes. When one pin 3 is inserted, the protective net 2 on top of the casing body 1 can rotate 360° without affecting drilling operations, while also preventing the protective net 2 from being lost, thus reminding workers to take timely precautions. When two pins 3 are inserted, the protective net 2 can firmly seal the top of the casing body 1, achieving a "one casing, one protection" effect, preventing people or large foreign objects from falling, effectively reducing the exposure time of the pile hole opening, and promptly eliminating the risk of pile hole collapse.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fall arrest casing for pile construction, characterised in that: The device includes a hollow protective casing and a rigid protective net. The top of the protective casing has a first mounting structure, and the protective net has a second mounting structure. The first and second mounting structures are movably connected, so that the protective net can be movably mounted on the top of the protective casing. The protective net is mounted on the top of the protective casing to form a fall-prevention structure that blocks the top port of the protective casing. At least two first perforated steel plates are welded to the outer wall of the casing body, and the first perforated steel plates are arranged at intervals along the circumference of the casing body to form the first mounting structure; at least two second perforated steel plates corresponding to the first perforated steel plates are welded to the outer side of the protective net, and the second perforated steel plates form the second mounting structure. The first perforated steel plates and the second perforated steel plates are respectively provided with mounting holes, and a connector is also provided that is detachably inserted through the mounting holes of the first perforated steel plates and the mounting holes of the second perforated steel plates, so that the first mounting structure and the second mounting structure are movably connected; the connector is a pin, and the mounting hole is a through hole. The protective net is rotatably installed on the top of the casing body by connecting one first perforated steel plate and one second perforated steel plate.

2. A fall arrest casing for pile construction according to claim 1, characterised in that: The pin includes a pin shaft portion and a head. The outer diameter of the head is larger than the outer diameter of the pin shaft portion, the outer diameter of the pin shaft portion is smaller than the diameter of the mounting hole, and the outer diameter of the head is larger than the diameter of the mounting hole. Thus, when only one pin connects a first perforated steel plate and a second perforated steel plate, the protective net is rotatable relative to the casing body.

3. The anti-fall casing for pile foundation construction according to claim 1, characterized in that: Two first perforated steel plates are symmetrically welded to the top sides of the casing body; two second perforated steel plates are symmetrically welded to the sides of the protective net.

4. A fall-prevention casing for pile foundation construction according to claim 1, characterized in that: The top of the first perforated steel plate is flush with the top of the casing body, and the thickness of the second perforated steel plate is greater than the thickness of the protective net. The top of the second perforated steel plate is flush with the top of the protective net, thereby forming a gap between the protective net and the top surface of the casing body to prevent fingers from being pinched.

5. A fall-prevention casing for pile foundation construction according to claim 1, characterized in that: The protective net is a circular mesh, and the protective cylinder body is a cylindrical structure, with the outer diameter of the protective net being equal to the outer diameter of the protective cylinder body.

6. A fall-prevention casing for pile foundation construction according to claim 1, characterized in that: The protective net has mesh openings.

7. A fall-prevention casing for pile foundation construction according to claim 1, characterized in that: The protective netting is made of steel mesh.

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