Safe anti-falling device for cast-in-situ bored pile construction

Abstract

The utility model discloses a cast-in-situ bored pile construction safety anti-falling device which comprises an orifice chuck used for being fixed to an orifice of a cast-in-situ bored pile, the orifice chuck is provided with an anti-falling device, the anti-falling device comprises an anti-falling screen plate assembly, and the anti-falling screen plate assembly can be used for covering the orifice and preventing personnel or objects from falling. The bottom of the anti-falling screen plate assembly is fixedly connected with the positioning assembly, the positioning assembly is used for determining the position of the anti-falling screen plate assembly, the anti-falling screen plate assembly is designed in a modularized mode and easy to install and disassemble, meanwhile, through a simple mechanical connection mode, rapid installation and adjustment of the anti-falling device are achieved, construction time and labor cost are saved, and construction efficiency is improved. And through accurate cooperation of the positioning assembly and the limiting assembly, the anti-falling screen plate assembly can be accurately positioned on the orifice chuck, protection failure caused by inaccurate position is avoided, the safety protection capacity of the orifice is effectively improved, and safety and stability in the construction process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti-falling, specifically relates to a bored pile construction safety anti-falling device. BACKGROUND

[0002] With the continuous development of the construction industry, the requirement of foundation engineering structure is also higher and higher. As an important foundation engineering structure, the construction quality and safety performance of bored pile are directly related to the safety and stability of the whole building. And the anti-falling device is an important equipment to ensure the safety of bored pile construction.

[0003] In the construction process of bored pile, the safety protection of the hole mouth has been the key and difficulty of construction safety management. The traditional hole mouth protection measure mainly relies on simple protective railings or temporary coverings. These measures have many problems such as limited protection effect, insufficient stability, poor adaptability, and inconvenience of installation and maintenance. At present, there are some improved anti-falling devices on the market, which still have some deficiencies such as complex structure, inconvenient adjustment and insufficient stability, and are inconvenient to use. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a bored pile construction safety anti-falling device to overcome the problems of the prior art.

[0005] The utility model is implemented by the following technical schemes:

[0006] A bored pile construction safety anti-falling device, comprising a hole mouth chuck for fixing on the hole mouth of a bored pile, an anti-falling device mounted on the hole mouth chuck, the anti-falling device comprising an anti-falling net plate assembly, and the anti-falling net plate assembly being used for covering the hole mouth and preventing personnel or objects from falling, a positioning assembly fixedly connected to the bottom of the anti-falling net plate assembly, and the positioning assembly being used for determining the position of the anti-falling net plate assembly, the positioning assembly comprising a reference part for cooperating with the limiting structure of a limiting assembly, and the reference part being able to accurately cooperate with the limiting structure of the limiting assembly, the limiting assembly having a limiting structure matched with the reference part of the positioning assembly, and the reference part of the positioning assembly and the limiting structure of the limiting assembly being connected by a mechanical connection mode, and the limiting assembly being fixed on the hole mouth chuck.

[0007] Preferably, the anti-falling net plate assembly comprises a first anti-falling net plate and a second anti-falling net plate, the front side of the first anti-falling net plate being slidably connected to the second anti-falling net plate through a sliding assembly, the sliding assembly comprising a sliding groove fixed on the first anti-falling net plate and a sliding block fixed on the second anti-falling net plate, and the sliding block being able to slide in the sliding groove, and the sliding groove being sequentially screwed with a plurality of first locking bolts from top to bottom, and the first locking bolts being used for fixing the position of the sliding block in the sliding groove.

[0008] Preferably, the middle part of the first anti-falling net plate is provided with a sinking prevention assembly, the sinking prevention assembly comprises a sleeve fixedly connected to the bottom of the first anti-falling net plate, a supporting rod is slidably connected in the sleeve, and the supporting rod penetrates through the sleeve, the bottom of the supporting rod is fixedly connected with a fixing block, the fixing block is arranged in contact with the orifice chuck, and the fixing block can be used for supporting the first anti-falling net plate, and a second locking bolt is screwed on the sleeve and used for fixing the position of the supporting rod in the sleeve.

[0009] Preferably, the positioning assembly comprises a positioning rod, the top end of the positioning rod is inserted into a sliding hole, the sliding hole is fixed to the side end of the first anti-falling net plate, the side end of the sliding hole is provided with a third locking bolt, the third locking bolt is screwed on the side end of the first anti-falling net plate and used for fixing the position of the positioning rod, and the bottom end of the positioning rod is rotatably connected with a connecting assembly, and the connecting assembly can be inserted into the limiting structure of the limiting assembly.

[0010] Preferably, the connecting assembly comprises a connecting rod, the connecting rod is sleeved on the bottom end of the positioning rod, the positioning rod is rotatably connected with the connecting rod through a rotating disc, and four arc-shaped protrusions are uniformly and annularly fixed to the outer side of the connecting rod.

[0011] Preferably, the limiting assembly comprises a limiting sleeve, the limiting sleeve is fixed to the orifice chuck, four arc-shaped grooves are uniformly and annularly fixed to the inner side of the limiting sleeve, the connecting rod can be inserted into the limiting sleeve, and the arc-shaped protrusions can be correspondingly inserted into the arc-shaped grooves, so that the limiting connection between the connecting assembly and the limiting assembly is realized.

[0012] The utility model discloses the advantages are: adopt modularization design, easily install and detach, through simple mechanical connection mode, realized the quick installation and adjustment of anti -falling device, saved construction time and manpower cost, and through the accurate cooperation of positioning assembly and limiting assembly, make the anti -falling net plate assembly can realize accurate positioning on the orifice chuck, avoided the protection failure caused by the inaccuracy of position, effectively improved the safety protection ability of orifice, ensured the safety and stability in the construction process. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not creating laboriously, can also obtain other drawings according to these drawings.

[0014] Figure 1 It is the structural diagram of the utility model;

[0015] Figure 2 It is the structural diagram of the utility modelFigure 1 Partially enlarged structural schematic view at A in the middle;

[0016] Figure 3 Partially enlarged structural schematic view at A in the middle;

[0017] In the figure: first anti-falling net plate 1, second anti-falling net plate 2, sleeve 3, support rod 4, fixed block 5, positioning rod 6, connecting rod 7, limiting sleeve 8, arc-shaped protrusion 9, arc-shaped groove 10. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] As Figure 1 , Figure 2 , Figure 3 indicated, a bored pile construction safety anti-falling device, comprising a hole mouth chuck for being fixed on a hole mouth of a bored pile, an anti-falling device is installed on the hole mouth chuck, the anti-falling device comprises an anti-falling net plate assembly, the anti-falling net plate assembly is fixedly connected with a positioning assembly at the bottom, the positioning assembly comprises a reference part for determining position, and the reference part can accurately cooperate with a limiting structure of a limiting assembly, the limiting assembly has the limiting structure matched with the reference part of the positioning assembly, the reference part of the positioning assembly is connected with the limiting structure of the limiting assembly in a mechanical mode, and the limiting assembly is fixed on the hole mouth chuck.

[0020] Specifically,

[0021] The hole mouth chuck serves as a basis of the whole anti-falling device and provides a stable support point, the fixing mode of the hole mouth chuck can be bolt connection, welding or other mechanical fixing modes, and the specific mode depends on the conditions of a construction site and the material of the hole mouth chuck;

[0022] The anti-falling net plate assembly is used for preventing personnel or objects from falling from the hole mouth, and is usually made of high-strength materials, such as metal nets or high-strength plastic nets, and can bear a certain impact force and weight;

[0023] The cooperation of the positioning assembly and the limiting assembly ensures the stability of the anti-falling net plate assembly on the hole mouth chuck, and avoids loosening due to vibration or impact during use;

[0024] The anti-falling net plate assembly forms a protective barrier, which can effectively block the falling of personnel or objects when they approach the hole, and the strength and toughness of the anti-falling net plate assembly enable it to withstand a certain impact force and weight, thereby ensuring the safety of personnel and equipment in the event of an accident.

[0025] The anti-falling net plate assembly comprises a first anti-falling net plate 1 and a second anti-falling net plate 2, and the front side of the first anti-falling net plate 1 is slidingly connected with the second anti-falling net plate 2 through a sliding assembly. The sliding assembly comprises a sliding groove and a sliding block, and the sliding block is slidingly connected in the sliding groove. The sliding groove is fixed on the first anti-falling net plate 1, and the sliding block is fixed on the second anti-falling net plate 2. A plurality of first locking bolts are screwed from top to bottom in the sliding groove.

[0026] Specifically:

[0027] The first anti-falling net plate 1 and the second anti-falling net plate 2 are connected through the sliding assembly, that is, the sliding block can freely slide in the sliding groove, thereby allowing the second anti-falling net plate 2 to slide on the first anti-falling net plate 1, thereby adapting to different construction requirements.

[0028] By tightening the first locking bolt, the sliding block can be locked at a specific position in the sliding groove, thereby fixing the position of the second anti-falling net plate 2 and better meeting the requirements of various construction environments and providing reliable safety protection.

[0029] A sinking prevention assembly is arranged in the middle of the first anti-falling net plate 1. The sinking prevention assembly comprises a sleeve 3 fixed on the bottom of the first anti-falling net plate 1, a support rod 4 slidingly connected in the sleeve 3, the support rod 4 penetrating through the sleeve 3, and a fixing block 5 fixedly connected at the bottom of the support rod 4. The fixing block 5 is arranged in contact with the hole chuck. Second locking bolts are screwed on the sleeve 3.

[0030] Specifically:

[0031] The support rod 4 and the fixing block 5 are used to provide additional support during installation to prevent the first anti-falling net plate 1 from sinking due to its own weight or external forces. During installation of the anti-falling net plate assembly, the support rod 4 can freely slide and extend until the fixing block 5 comes into contact with the hole chuck. At this time, the fixing block 5 provides a stable support point to bear the weight of the first anti-falling net plate 1.

[0032] By tightening the second locking bolt, the position of the support rod 4 in the sleeve 3 can be fixed, ensuring that the first anti-falling net plate 1 will not move downward during use due to vibration or external forces.

[0033] If it is necessary to adjust the height of the first anti-falling net plate 1, the second locking bolt can be loosened, and then the length of the support rod 4 can be changed by sliding it. After adjustment, the second locking bolt is tightened again to fix the position of the support rod 4.

[0034] The anti-sinking assembly can effectively prevent the first anti-falling net plate 1 from sinking, provide reliable support and stability, and enhance its applicability in various construction environments.

[0035] The positioning assembly includes a positioning rod 6, the top end of which is inserted into a sliding hole fixed on the side end of the first anti-falling net plate 1, and the side end of the sliding hole is provided with a third locking bolt, which is screwed on the side end of the first anti-falling net plate 1. The bottom end of the positioning rod 6 is rotationally connected with a connecting assembly, which can be inserted into the limiting structure of the limiting assembly.

[0036] The connecting assembly includes a connecting rod 7, which is sleeved on the bottom end of the positioning rod 6, and the positioning rod 6 is rotationally connected with the connecting rod 7 through a rotating disc. Four arc-shaped protrusions 9 are uniformly fixed on the outer side surface of the connecting rod 7.

[0037] The limiting assembly includes a limiting sleeve 8, which is fixed on the orifice chuck. Four arc-shaped grooves 10 are uniformly fixed on the inner side surface of the limiting sleeve 8, and the connecting rod 7 can be inserted into the limiting sleeve 8. The arc-shaped protrusions 9 can be correspondingly inserted into the arc-shaped grooves 10.

[0038] Specifically:

[0039] The top end of the positioning rod 6 is inserted into the sliding hole, which is fixed on the side end of the first anti-falling net plate 1. The sliding hole allows the positioning rod to move freely within a certain range, facilitating the adjustment of the position of the anti-falling net plate. The third locking bolt is screwed on the side end of the sliding hole to fix the position of the positioning rod 6. After the positioning rod 6 is adjusted to the appropriate position, the third locking bolt is tightened to ensure that the positioning rod 6 is stable and immovable. At the same time, the adjustment of the positioning rod 6 can change the height of the first anti-falling net plate 1, better meeting the on-site requirements.

[0040] The connecting rod 7 is connected to the bottom end of the positioning rod 6 by sleeving. The rotating disc allows the connecting rod to rotate around the positioning rod, enabling the connecting assembly to be adjusted during installation.

[0041] The outer side surface of the connecting rod 7 is uniformly fixed with four arc-shaped protrusions 9. The arc-shaped protrusions 9 are key components of the connecting assembly and the limiting assembly, used to achieve precise limiting connection.

[0042] The limiting sleeve 8 is fixed on the orifice chuck, and its inner side surface is uniformly fixed with four arc-shaped grooves 10. The connecting rod 7 is inserted into the limiting sleeve 8, and the arc-shaped protrusions 9 are correspondingly inserted into the arc-shaped grooves 10, enabling the connecting assembly and the limiting assembly to achieve precise limiting connection. This ensures the stability and accuracy of the connecting assembly in the limiting sleeve, avoiding loosening or displacement during use. This enables the anti-falling net plate assembly to achieve precise positioning and stable connection, providing reliable safety protection.

[0043] Actual working process:

[0044] During construction, the orifice chuck is first fixed in the orifice of the cast-in-place pile, the anti-falling net plate assembly is installed on the orifice chuck through the sliding assembly and the anti-sinking assembly, and precise positioning and stable connection are realized through the cooperation of the positioning assembly and the limiting assembly;

[0045] The anti-falling net plate assembly forms a protective barrier, which can effectively block the falling of personnel or objects when they approach the orifice, and the anti-sinking assembly provides additional support force to ensure that the anti-falling net plate assembly does not sink during use. The precise cooperation of the positioning assembly and the limiting assembly ensures the stability and safety of the anti-falling net plate assembly during use.

[0046] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A safety fall prevention device for bored pile construction, characterized in that, The device includes an orifice chuck for fixing to the orifice of a bored pile. An anti-fall device is installed on the orifice chuck, comprising an anti-fall mesh assembly that covers the orifice and prevents personnel or objects from falling. A positioning component is fixedly connected to the bottom of the anti-fall mesh assembly to determine its position. The positioning component includes a reference portion for engaging with a limiting structure of a limiting component, and the reference portion precisely engages with the limiting structure. The limiting component has a limiting structure that matches the reference portion of the positioning component. The reference portion of the positioning component and the limiting structure of the limiting component are mechanically connected, and the limiting component is fixed to the orifice chuck.

2. The safety fall prevention device for bored pile construction according to claim 1, characterized in that: The fall arresting net assembly includes a first fall arresting net and a second fall arresting net. The front side of the first fall arresting net is slidably connected to the second fall arresting net via a sliding assembly. The sliding assembly includes a groove fixed on the first fall arresting net and a slider fixed on the second fall arresting net. The slider can slide within the groove. Multiple first locking bolts are screwed onto the groove from top to bottom, which can be used to fix the position of the slider within the groove.

3. The safety fall prevention device for bored pile construction according to claim 2, characterized in that: The first fall-prevention net is provided with an anti-sinking component in the middle. The anti-sinking component includes a sleeve fixedly connected to the bottom of the first fall-prevention net. A support rod is slidably connected inside the sleeve and passes through the sleeve. A fixing block is fixedly connected to the bottom of the support rod. The fixing block can contact the orifice chuck and can be used to support the first fall-prevention net. A second locking bolt is screwed onto the sleeve to fix the position of the support rod inside the sleeve.

4. The safety fall prevention device for bored pile construction according to claim 3, characterized in that: The positioning component includes a positioning rod, the top end of which is inserted into a sliding hole. The sliding hole is fixed on the side end of the first fall protection net plate. A third locking bolt is provided on the side end of the sliding hole. The third locking bolt is screwed onto the side end of the first fall protection net plate to fix the position of the positioning rod. A connecting component is rotatably connected to the bottom end of the positioning rod. The connecting component can be inserted into the limiting structure of the limiting component.

5. A safety fall prevention device for bored pile construction according to claim 4, characterized in that: The connecting assembly includes a connecting rod, which is sleeved on the bottom end of the positioning rod. The positioning rod is rotatably connected to the connecting rod via a rotating disk. Four arc-shaped protrusions are evenly fixed on the outer side of the connecting rod.

6. A safety fall prevention device for bored pile construction according to claim 5, characterized in that: The limiting component includes a limiting sleeve, which is fixed on the orifice chuck. The inner side of the limiting sleeve has four arc-shaped grooves evenly fixed in a ring. The connecting rod can be inserted into the limiting sleeve, and the arc-shaped protrusion can be correspondingly inserted into the arc-shaped groove, thereby realizing the limiting connection between the connecting component and the limiting component.

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