Down-the-hole drill for foundation reinforcement

Abstract

The utility model provides a down-the-hole drill for foundation reinforcement, which belongs to the technical field of foundation reinforcement and comprises a drill arm, a support component, a drill rod, a drill rod and a drill rod. Wherein the supporting assembly comprises a supporting arm, a hydraulic rod, an extrusion claw, a maintenance plate, a positioning bolt, a gasket, an enclosure ring, a mounting table, a bolt hole and a drilling machine structure, the drilling machine structure is arranged on the outer wall of the drilling machine arm, and one end of the supporting arm is rotationally inserted into one side of the outer wall of the mounting table. By means of the supporting assembly, the drilling machine arm, the control mechanical arm and other equipment can be assisted to be rapidly unfolded and deployed in a deep pit for foundation reinforcement, the problems that due to the fact that the control mechanical arm and other equipment are deployed on the edge of the deep pit, the gravity center is unstable, and toppling is caused are solved, and meanwhile the maintenance plate and the enclosure ring are utilized; maintenance personnel can get close to the drilling machine arm conveniently, maintenance operation is facilitated, and the safety problem caused by direct entering a deep pit is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation reinforcement, and particularly relates to a down-the-hole drill for foundation reinforcement. Background Art

[0002] Foundation pit reinforcement is a crucial step in ensuring pit stability and safety during construction. The following is a detailed explanation of foundation pit reinforcement: During excavation, soil unloading and stress redistribution often lead to deformation and displacement of the surrounding soil, which in turn affects the pit's stability and safety. Therefore, strengthening the pit to improve soil strength and stability is crucial for ensuring safe and high-quality construction.

[0003] During foundation reinforcement, drilling with a down-the-hole drill, followed by grouting, piling, and reinforcement placement, is a comprehensive construction process involving multiple technical steps. The following is a detailed analysis of this process: 1. Drilling with a down-the-hole drill, its uses and advantages: Down-the-hole drills are primarily used for excavating holes in foundation reinforcement. They can penetrate deep into the soil and drill reliably, facilitating subsequent grouting and reinforcement placement. Their advantage lies in ensuring the verticality and depth of the drilled holes, improving drilling quality, while also increasing construction efficiency and reducing costs. Key points: When using a down-the-hole drill, the location, depth, and diameter of the drilled holes must be determined based on the actual foundation conditions and design requirements. During the drilling process, the verticality and depth of the drilled holes must be strictly controlled to avoid significant deviations that could affect subsequent construction. After drilling is complete, the hole must be cleaned to remove debris and loose soil, ensuring it is clear and free of impurities. 2. Grouting Pile Connection, Grouting Materials: Grouting materials typically include cement slurry, mortar, and chemical slurries. These materials have excellent flowability and adhesion, filling the gaps between the piles and improving the bearing capacity and stability of the foundation. Grouting Construction: High-pressure grouting material is injected into the holes using a grouting pump to fill the gaps between the piles and enhance the bond and friction between the piles and the surrounding soil. During the grouting process, the grouting pressure and volume must be controlled to avoid excessive grouting pressure that could cause cracking of the foundation soil, or insufficient grouting volume that could compromise the reinforcement effect. Measurement and Inspection: After grouting is completed, the grouting results must be measured and inspected, including the density, strength, and uniformity of the grouting, to ensure that the grouting quality meets design requirements. 3. Rebar Arrangement, Rebar Type, and Specifications: The type and specifications of rebar should be appropriately determined based on the design requirements and specific conditions of the project. The type of rebar should meet the design load requirements, and the specifications should be selected based on the cross-sectional area and tensile strength of the rebar. Rebar Arrangement: The rebar arrangement must fully consider the load-bearing properties and overall stability of the pile foundation. The length of the rebar should meet the requirements for the depth of the pile foundation and its penetration into the soil. The number and spacing of the rebar should be determined based on the size of the column and construction needs. The connections between the rebars should be secure and reliable to avoid loosening or falling apart. Welding or mechanical connections are typically used for this purpose. Rebar securing: After the rebar is laid out, it is necessary to secure it. Using auxiliary tools such as positioning stirrups and stirrups, the rebar is secured in place to prevent displacement or deformation during concrete pouring.

[0004] Regarding the problems of hydraulic equipment and control arms toppling over at the pit edge when the drill rig sinks into the deep pit during foundation drilling, as well as the poor safety issues faced by workers when using wooden planks to build access roads for maintenance, the following is a detailed introduction to the causes of these shortcomings:

[0005] 1. Causes of pit edge hydraulic equipment and control arm tipping problems

[0006] Shift in the center of gravity of the drilling rig: When the drilling rig sinks into a deep pit for drilling operations, the center of gravity of the drilling rig will shift due to the penetration of the drill bit and the reaction force of the soil. If the design and stabilization measures of the drilling rig are not sufficient to resist this shift, it may cause the drilling rig to topple over as a whole or in part (such as hydraulic equipment and control arms). Insufficient ground bearing capacity: The ground at the edge of the deep pit may have a significantly reduced bearing capacity due to the loosening and unloading of the soil during the excavation process. Heavy components such as hydraulic equipment and control arms placed on such ground are prone to settlement or collapse, which in turn causes toppling. Interference from external factors: External factors such as wind and vibration may also have an adverse effect on the drilling rig and its hydraulic equipment, control arms and other components, increasing the risk of toppling.

[0007] 2. The reason why workers use wooden boards to build passages is less safe and the passages are less stable: wooden boards, as materials for building passages, have relatively weak bearing capacity and stability. When people walk or perform maintenance work, the passages are prone to shaking or deformation, increasing the risk of workers falling or getting injured. Poor anti-slip performance: The anti-slip performance of the wooden board surface may decrease due to moisture, oil, etc. Workers are prone to slipping when walking on the passages, and it is especially difficult to maintain balance in emergencies. Lack of safety facilities: passages built with wooden boards often lack necessary safety facilities, such as handrails and railings. The lack of these facilities makes workers lack safety protection when walking on the passages, and it is difficult to get timely assistance in the event of an accident. Complex working environment: The working environment for deep pit drilling in the foundation is usually more complex, and there may be adverse factors such as noise and dust. These factors not only affect the physical and mental health of workers, but may also increase safety risks during the operation. Utility Model Content

[0008] The purpose of the utility model is to provide a down-the-hole drill for foundation reinforcement, aiming to solve the problems raised by the background technology.

[0009] A down-the-hole drilling rig for foundation reinforcement, comprising:

[0010] Drilling arm, used to adjust the drilling angle and position;

[0011] The support assembly is arranged on both sides of the outer wall of the drill rig arm, wherein: the support assembly includes a support arm, a hydraulic rod, an extrusion claw, a maintenance plate, a positioning bolt, a gasket, a retaining ring, a mounting platform, a pin hole and a drill rig structure; the drill rig structure is arranged on the outer wall of the drill rig arm, one end of the support arm is rotatably inserted on one side of the outer wall of the mounting platform, the extrusion claw is rotatably embedded in the inner wall of the other end of the support arm, one end of the hydraulic rod is rotatably inserted on the outer wall of the mounting platform, and the other end of the hydraulic rod is rotatably embedded in the inner wall of the support arm; the positioning bolt is fixedly arranged on both sides of the outer wall of the top end of the drill rig arm; the mounting platform and the positioning bolt match each other; the pin hole is opened on both sides of the outer wall top of the extrusion claw; the gasket is fixedly arranged on both sides of the outer wall of the drill rig arm; and the retaining ring is fixedly arranged at the bottom of the outer wall of the gasket.

[0012] Furthermore, a limiting ring is fixedly provided on the outer wall of the drilling rig arm, and a drill rod is slidably embedded in the inner wall of the limiting ring.

[0013] Furthermore, a quick connector is fixedly provided on the bottom of the outer wall of the drill rod.

[0014] Furthermore, a slide rail is fixedly provided on one side of the outer wall of the drilling rig arm, and a telescopic frame is slidably embedded in the inner wall of the slide rail.

[0015] Furthermore, a rubber cover is embedded in the inner wall of the telescopic frame.

[0016] Furthermore, a maintenance plate is sleeved on one side of the outer wall of the drilling rig arm, and the maintenance plate and the extrusion claw match each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The support assembly can assist the drill arm and control the robotic arm and other equipment to quickly deploy the drill arm in a deep pit with reinforced foundation, avoiding the problem of unstable center of gravity and tipping caused by deploying the control robotic arm and other equipment at the edge of the deep pit. At the same time, the maintenance plate and the retaining ring can facilitate maintenance personnel to approach the drill arm, facilitate maintenance operations, and avoid directly entering the deep pit and causing safety problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a partial half-section perspective view of the present utility model;

[0021] Figure 2 A three-dimensional diagram of the maintenance plate of the present invention;

[0022] Figure 3 This is a three-dimensional diagram of the rubber cover of the utility model;

[0023] Figure 4 This is a three-dimensional diagram of the extrusion claw of the utility model;

[0024] Figure 5 It is a three-dimensional diagram of the telescopic frame of the utility model.

[0025] In the figure: 1. Drill arm; 2. Limit ring; 3. Drill rod; 4. Quick connector; 5. Support arm; 6. Hydraulic rod; 7. Extrusion claw; 8. Maintenance plate; 9. Rubber cover; 10. Telescopic frame; 101. Positioning bolt; 102. Gasket; 103. Retaining ring; 104. Mounting table; 105. Slide rail; 701. Pin hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0029] See also Figure 1-5 , the technical solutions provided in this embodiment are as follows:

[0030] A down-the-hole drilling rig for foundation reinforcement, comprising:

[0031] Drilling arm 1, used to adjust the drilling angle and position;

[0032] The support assembly is arranged on both sides of the outer wall of the drill rig arm 1, wherein: the support assembly includes a support arm 5, a hydraulic rod 6, an extrusion claw 7, a maintenance plate 8, a positioning bolt 101, a gasket 102, a retaining ring 103, a mounting platform 104, a pin hole 701 and a drilling rig structure. The drilling rig structure is arranged on the outer wall of the drill rig arm 1, one end of the support arm 5 is rotatably inserted into one side of the outer wall of the mounting platform 104, the extrusion claw 7 is rotatably embedded in the inner wall of the other end of the support arm 5, one end of the hydraulic rod 6 is rotatably inserted into the outer wall of the mounting platform 104, and the other end of the hydraulic rod 6 is rotatably embedded in the inner wall of the support arm 5, the positioning bolt 101 is fixedly arranged on both sides of the outer wall of the top end of the drill rig arm 1, the mounting platform 104 and the positioning bolt 101 match each other, the pin hole 701 is opened on both sides of the outer wall top of the extrusion claw 7, the gasket 102 is fixedly arranged on both sides of the outer wall of the drill rig arm 1, and the retaining ring 103 is fixedly arranged at the bottom of the outer wall of the gasket 102.

[0033] In a specific embodiment of the present invention, the support assembly can assist the drill arm 1 and the control arm and other equipment to quickly deploy the drill arm 1 in a deep pit with reinforced foundation, avoiding the problem of unstable center of gravity and tipping caused by the deployment of the control arm and other equipment at the edge of the deep pit. At the same time, the maintenance plate 8 and the retaining ring 103 can facilitate maintenance personnel to approach the drill arm 1 for maintenance work and avoid direct entry into the deep pit to cause safety problems. First, the drill arm 1 is installed on the designated control arm equipment, and the hydraulic device and the control arm are deployed near the reinforced pit. Then, the fixing of the mounting platform 104 is completed by the positioning bolt 101, and the quick connector 4 is connected. After the installation of the drill bit is completed, the support arm 5 is unfolded by the hydraulic rod 6 so that the squeezing claw 7 moves along with it. When the squeezing claw 7 is working, if the edge of the deep pit is made of hard material, it is recommended that the squeezing claw 7 lean against the edge of the deep pit and be fixed with a pin. If the edge of the deep pit is made of soft material, the squeezing claw 7 is directly inserted. After the complete deployment of the support arm 5, the control arm equipment drives the drill arm 1 to descend to the designated drilling position, and then the rubber cover 9 completes the covering, and the maintenance team is fixed to the top of the outer wall of the squeezing claw 7 by the pin. The bottom of the outer wall of the maintenance plate 8 is in contact with the retaining ring 103, the drill bit and drill rod 3 descend, and drilling begins. The staff observes and performs maintenance operations through the maintenance plate 8.

[0034] Specifically, a limiting ring 2 is fixedly provided on the outer wall of the drill arm 1 , and a drill rod 3 is slidably embedded in the inner wall of the limiting ring 2 .

[0035] In a specific embodiment of the present invention, the limiting ring 2 can ensure the movement stability of the drill rod 3.

[0036] Specifically, a quick connector 4 is fixedly provided on the bottom of the outer wall of the drill rod 3 .

[0037] In a specific embodiment of the present invention, the quick connector 4 can facilitate stable installation of the drill bit.

[0038] Specifically, a slide rail 105 is fixedly provided on one side of the outer wall of the drill arm 1 , and a telescopic frame 10 is slidably embedded in the inner wall of the slide rail 105 .

[0039] In a specific embodiment of the present invention, the telescopic frame 10 can ensure that the rubber cover 9 has a certain rebound stroke.

[0040] Specifically, a rubber cover 9 is embedded in the inner wall of the telescopic frame 10 .

[0041] In a specific embodiment of the present invention, the rubber cover 9 can prevent dust from splashing during drilling.

[0042] Specifically, a maintenance plate 8 is sleeved on one side of the outer wall of the drill arm 1 , and the maintenance plate 8 and the extrusion claw 7 match each other.

[0043] In a specific embodiment of the present invention, the maintenance plate 8 and the extrusion claw 7 match each other, which can be easily and quickly installed.

[0044] Working principle:

[0045] Through the support assembly, the drill arm 1 and the control arm and other equipment can be assisted to quickly deploy the drill arm 1 in the deep pit where the foundation is reinforced, so as to avoid the problem of unstable center of gravity and tipping caused by the deployment of the control arm and other equipment at the edge of the deep pit. At the same time, the maintenance plate 8 and the retaining ring 103 can be used to facilitate maintenance personnel to approach the drill arm 1 for maintenance work and avoid direct entry into the deep pit to cause safety problems. First, the drill arm 1 is installed on the designated control arm equipment, and the hydraulic device and the control arm are deployed near the reinforced pit. Then, the positioning bolt 101 is used to complete the fixation of the mounting platform 104, and the quick connector 4 is used to complete the installation of the drill bit. , use the hydraulic rod 6 to unfold the support arm 5, so that the squeezing claw 7 moves along with it. When the squeezing claw 7 is working, if the edge of the deep pit is made of hard material, it is recommended that the squeezing claw 7 lean against the edge of the deep pit and use the pin to complete the fixation. If the edge of the deep pit is made of soft material, the squeezing claw 7 is directly inserted. After the complete deployment of the support arm 5, the control arm equipment drives the drill arm 1 to descend to the designated drilling position, and then the rubber cover 9 completes the covering, and the maintenance team is fixed to the top of the outer wall of the squeezing claw 7 by the pin. The bottom of the outer wall of the maintenance plate 8 is in contact with the retaining ring 103, the drill bit and the drill rod 3 are lowered, and drilling begins. The staff observes and performs maintenance work through the maintenance plate 8.

[0046] Finally, it should be noted that the above description is merely 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, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or 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 within the scope of protection of the present invention.

Claims

1. A down-the-hole drill for foundation reinforcement, characterized in that: include, A drilling rig arm (1) for adjusting the drilling angle and position; A support assembly is provided on both sides of the outer wall of a drilling rig arm (1), wherein: the support assembly comprises a support arm (5), a hydraulic rod (6), a squeezing claw (7), a maintenance plate (8), a positioning bolt (101), a gasket (102), a retaining ring (103), a mounting platform (104), a pin hole (701) and a drilling rig structure; the drilling rig structure is provided on the outer wall of the drilling rig arm (1); one end of the support arm (5) is rotatably inserted into one side of the outer wall of the mounting platform (104); the squeezing claw (7) is rotatably embedded in the inner wall of the other end of the support arm (5); the hydraulic rod One end of the hydraulic rod (6) is rotatably inserted into the outer wall of the mounting platform (104), and the other end of the hydraulic rod (6) is rotatably embedded in the inner wall of the support arm (5). The positioning bolt (101) is fixedly arranged on both sides of the outer wall of the top end of the drilling arm (1). The mounting platform (104) and the positioning bolt (101) match each other. The pin hole (701) is opened on both sides of the outer wall top of the extrusion claw (7). The gasket (102) is fixedly arranged on both sides of the outer wall of the drilling arm (1), and the retaining ring (103) is fixedly arranged at the bottom of the outer wall of the gasket (102).

2. A down-the-hole drill for foundation reinforcement according to claim 1, characterized in that: A limiting ring (2) is fixedly provided on the outer wall of the drilling rig arm (1), and a drill rod (3) is slidably embedded in the inner wall of the limiting ring (2).

3. A down-the-hole drill for foundation reinforcement according to claim 2, characterized in that: A quick connector (4) is fixedly provided on the bottom of the outer wall of the drill rod (3).

4. A down-the-hole drill for foundation reinforcement according to claim 3, characterized in that: A slide rail (105) is fixedly provided on one side of the outer wall of the drilling rig arm (1), and a telescopic frame (10) is slidably embedded in the inner wall of the slide rail (105).

5. A down-the-hole drill for foundation reinforcement according to claim 4, characterized in that: A rubber cover (9) is embedded in the inner wall of the telescopic frame (10).

6. A down-the-hole drill for foundation reinforcement according to claim 5, characterized in that: A maintenance plate (8) is sleeved on one side of the outer wall of the drilling rig arm (1), and the maintenance plate (8) and the extrusion claw (7) match each other.

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