Portable drilling protection guardrail

Abstract

The utility model discloses a portable drilling protective guardrail, and relates to the technical field of pile foundation drilling construction. The portable drilling protection guardrail is used in cooperation with a steel casing and comprises a protection steel plate, a protection kick plate, hanging rings and a guardrail body, a circular hole is formed in the middle of the protection steel plate, the protection kick plate is matched and fixedly connected with the outer edge of the circular hole, the bottoms of the hanging rings are fixedly connected with the protection steel plate, one side of each hanging ring is fixedly connected with the protection kick plate, and the other side of each hanging ring is fixedly connected with the guardrail body. The bottom of the guardrail is fixedly connected with the protective kick plate, and the inner diameter of the guardrail is matched with the outer diameter of the steel casing. The device is used for solving the problem that construction efficiency and precision are affected by dangerous operation environment and falling of sundries, and by providing effective protection measures and a flexible operation mechanism, construction quality and efficiency are improved, and safety risks are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pile foundation drilling construction, and specifically relates to a portable drilling protection guardrail. Background Art

[0002] As bridge construction technology matures, higher requirements are placed on the quality and efficiency of substructure construction. As the lower foundation of the bridge, the safe and compliant production of the main tower pile foundation is the key to ensuring the overall stability and durability of the bridge. Pile foundation drilling, as the first step in pile foundation construction, is directly related to the subsequent construction and the quality of the overall project. As a comprehensive drilling rig, the rotary drilling rig provides a strong guarantee for the construction quality of bored piles due to its fast hole-making speed, less pollution, and strong mobility.

[0003] Although rotary drilling rigs have significant advantages in bridge pile foundation construction, there are still some problems and defects in the actual application process. First, the pile foundation drilling operation environment is complex, and safety accidents such as hole wall collapse and mud leakage occur from time to time, which seriously threatens the life safety of construction workers and construction progress. Secondly, the drilling process is prone to problems such as hole position deviation and hole diameter change, resulting in substandard pile quality and affecting the overall stability and durability of the bridge. In addition, debris may fall during the drilling process, affecting construction and damaging the drill bit.

[0004] Therefore, how to achieve safe, efficient and high-quality production of pile foundation drilling has become an important issue that needs to be urgently solved in the current bridge engineering field. Utility Model Content

[0005] The utility model provides a portable drilling protection guardrail, which is used to solve the problems of dangerous working environment and falling debris affecting construction efficiency and accuracy. By providing effective protection measures and flexible working mechanisms, the construction quality and efficiency are improved and the safety risks are reduced.

[0006] The technical solutions used in this utility model are as follows:

[0007] A portable drilling protection guardrail, which is used in conjunction with a steel casing, comprises a protective steel plate, a protective kick plate, a lifting ring and a guardrail.

[0008] A circular hole is provided in the middle of the protective steel plate.

[0009] The protective kick plate is matched with and fixedly connected to the outer edge of the circular hole.

[0010] There are multiple lifting rings, the bottom of each lifting ring is fixedly connected to the protective steel plate, and one side of each lifting ring is fixedly connected to the protective kick plate.

[0011] The bottom of the guardrail is fixedly connected to the protective kick plate, and the inner diameter of the guardrail matches the outer diameter of the steel casing.

[0012] Furthermore, the guardrail includes a plurality of guardrail vertical poles, which are arranged around the protective kick plate. The plurality of guardrail vertical poles are fixedly connected to the guardrail connection ring. The inner diameter of the guardrail connection ring is the same as the inner diameter of the protective kick plate. The diameter of the inscribed circle trajectory formed by the plurality of guardrail vertical poles is dimensionally matched with the outer diameter of the steel casing.

[0013] Furthermore, the lifting rings are evenly distributed on the outer edge of the protective kick plate.

[0014] Furthermore, the lifting rings are portal lifting rings.

[0015] Furthermore, it further includes a round steel cylinder and a protective door. There are a plurality of the round steel cylinders, which are fixedly connected to the inner wall of the protective kick plate. The protective door is provided with a plurality of protective door vertical poles corresponding to the spacing of the round steel cylinders. The outer diameter of the protective door vertical poles is dimensionally matched with the inner diameter of the round steel cylinder. The protective door vertical poles are fixedly connected through a protective door connection ring. The outer diameter of the protective door connection ring is the same as that of the guardrail. The guardrail is disconnected at both ends of the protective door.

[0016] Furthermore, the guardrail vertical poles and the protective door vertical poles are evenly distributed, and the guardrail and the protective door form a complete circle.

[0017] Furthermore, it further includes a limiting component. There are a plurality of the limiting components, which pass through the guardrail and are tightly connected to the guardrail.

[0018] Furthermore, the limiting component includes a nut, a screw rod, an extension rod and a roller. The screw rod passes through the guardrail. The screw rod is connected to the guardrail and the protective door through the nut. One end of the extension rod is rotatably connected to the screw rod, and the other end of the extension rod is provided with the roller.

[0019] The beneficial effects of the present utility model are as follows: Through the combination of the protective steel plate, the protective kick plate, the lifting rings and the guardrail, and in cooperation with the steel casing, a closed working environment is formed. The protective steel plate prevents potential safety hazards brought to construction workers by accidents such as the collapse of the hole wall. The protective kick plate adds shielding on the side to prevent sundries from falling into the hole and affecting the construction process. The guardrail encloses the working environment to prevent unauthorized personnel from entering by mistake, further enhancing the construction safety. This design not only improves the safety of the operation, but also reduces the impact of external interference on the construction progress and protects the drill bit, ultimately promoting the improvement of the drilling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the portable drilling protection guardrail provided by the present utility model in the working state;

[0021] Figure 2 Schematic diagram of the overall structure of the portable drilling protection guardrail provided by the present utility model in the initial state;

[0022] Figure 3 Top view of the portable drilling protection guardrail provided by the present utility model in the working state;

[0023] Figure 4 Schematic diagram of the structure of the limit component.

[0024] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Protective steel plate; 2. Protective kick plate; 3. Hoisting ring; 4. Round steel cylinder; 5. Protective door; 6. Guardrail; 7. Limit component; 8. Drill pipe; 9. Steel casing; 51. Protective door vertical pole; 52. Protective door connecting ring; 61. Guardrail vertical pole; 62. Guardrail connecting ring; 71. Nut; 72. Screw rod; 73. Rotating shaft; 74. Extension rod; 75. Roller. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings.

[0028] In pile foundation drilling operations, a steel casing 9 is often buried to locate the pile position to be drilled, and it is also used to protect the hole wall during the drilling process, prevent collapse, and maintain the stability of the drilling. A portable drilling protection guardrail provided by the present utility model is used in cooperation with the steel casing 9 to ensure the accuracy and safety of the drilling operation.

[0029] As Figures 1-4 shown, this embodiment provides a portable drilling protection guardrail, including a protective steel plate 1, a protective kick plate 2, a hoisting ring 3, a guardrail 6, a round steel cylinder 4, a protective door 5, and a limit component 7.

[0030] As Figure 1As shown in the figure, the protective steel plate 1 is a square plate with a circular hole in the middle. The protective kick plate 2 is fitted and welded to the outer edge of the circular hole. The lifting rings 3 are gantry lifting rings 3, and there are multiple of them. The multiple lifting rings 3 are distributed on the outer edge of the protective kick plate 2. The bottom and one side of the lifting ring 3 serve as welding surfaces and are welded to the protective steel plate 1 and the protective kick plate 2 respectively to form double-sided fillet welds. The bottom end of the guardrail 6 is fully welded to the protective kick plate 2. The inner diameter of the guardrail 6 matches the outer diameter of the steel casing 9 (the diameter of the inscribed circle formed by multiple guardrail uprights 61 matches the outer diameter of the steel casing 9). Multiple round steel cylinders 4 are welded to the inner wall of the protective kick plate 2. The protective door 5 is of an up-and-down plug-in type and is used in conjunction with the round steel cylinders 4. The guardrail 6 is disconnected at both ends of the protective door 5, as Figure 3 shown. The guardrail 6 and the protective door 5 exactly form a complete circle. Multiple groups of limiting components 7 are distributed on the outer edge of the guardrail 6. The multiple groups of limiting components 7 pass through the guardrail 6 and the protective door 5 and are fixedly connected to the guardrail 6 and the protective door 5. In this embodiment, there are four lifting rings 3, which are evenly distributed on the outer edge of the protective kick plate 2. There are three round steel cylinders 4 and four limiting components 7.

[0031] Among them, the protective steel plate 1 serves as the main supporting surface of the entire protective device, providing sufficient rigidity and protection ability to prevent safety hazards to construction workers caused by accidents such as hole wall collapse. The protective kick plate 2 is used to support and guide the protective door 5 and is fully welded to the guardrail 6 to enhance the overall stability. At the same time, it increases the shielding on the side, which can prevent sundries from falling into the hole, affecting the construction process and damaging the drill bit. The lifting rings 3 are used for the hoisting and positioning of the entire device. The weld between the bottom of the lifting ring 3 and the protective steel plate 1 enhances the vertical stability of the lifting ring 3, while the weld between one side of the lifting ring 3 and the protective kick plate 2 improves the lateral connection strength, jointly constituting a stable and safe connection structure. The steel casing 9 is used to ensure that the protective door 5 can be inserted and pulled out smoothly. The opening and closing design of the protective door 5 facilitates the entry and exit of the drill bit. It is closed during operation and opened when needed to allow the drill bit to pass through for cleaning or replacement. The limiting components 7 are used to assist in limiting the travel route of the drill pipe 8 to prevent large deviations when the drill bit operates away from the steel casing 9 when the drilling is relatively deep, affecting the drilling quality.

[0032] Specifically, as Figure 1 shown, the guardrail 6 includes multiple guardrail uprights 61 and guardrail connection rings 62. In this embodiment, a total of six guardrail uprights 61 are provided, arranged around the protective kick plate 2, and the bottom is fully welded to the protective kick plate 2. The six guardrail uprights 61 are connected by guardrail connection rings 62. There are two guardrail connection rings 62, which are welded to the middle and top of the guardrail uprights 61 respectively.

[0033] As Figure 1As shown, the protective door 5 includes protective door vertical poles 51 and protective door connecting rings 52. In this embodiment, there are three protective door vertical poles 51 corresponding to the number of round steel cylinders 4. The diameter of the protective door vertical poles 51 matches the inner diameter of the round steel cylinders 4 and can be smoothly inserted into the round steel cylinders 4. The protective door vertical poles 51 are fixedly connected through the protective door connecting rings 52. There are two protective door connecting rings 52, which are welded to the middle and top of the protective door vertical poles 51. After the protective door 5 is closed, the diameters of the protective door connecting rings 52 and the guardrail connecting rings 62 are equal and the positions correspond. The six guardrail vertical poles 61 and the three protective door vertical poles 51 are evenly distributed within the inner circle of the protective kick plate 2.

[0034] As Figure 2 and Figure 4 shown, the limiting component 7 includes a nut 71, a screw rod 72, a rotating shaft 73, an extension rod 74 and a roller 75. Four threaded holes are evenly opened on the guardrail connecting ring 62 provided in the middle. One end of the screw rod 72 passes through the above-mentioned threaded holes and is fixedly connected to the guardrail connecting ring 62 through the nut 71. A rotating shaft 73 is fixed to the other end of the screw rod 72. One end of the extension rod 74 is matched with the rotating shaft 73 to achieve rotation. Two rollers 75 are provided at the other end of the extension rod 74. When the drill rod 8 moves downward, the above two rollers 75 roll on it. The cooperation between the nut 71 and the screw rod 72 is not only used to fixedly connect the limiting component 7 to the guardrail connecting ring 62 and the protective door connecting ring 52, but also can adjust the distance between the limiting component 7 and the drill rod 8 so that the rollers 75 fit the drill rod 8 to play a limiting role. The use of the rollers 75 will not affect the downward movement of the drill rod 8 and hinder the drilling work. A rotating shaft 73 is provided between the screw rod 72 and the extension rod 74 so that the extension rod 74 can be placed parallel to the drill rod 8 when not in use, avoiding the screw rod 72 having too long a screwed-out part when not in use and causing interference to the drilling work.

[0035] The working principle of the present utility model is as follows:

[0036] Paint the portable drilling protective guardrail and attach a process blue label to prepare for drilling.

[0037] After the center point of the pile point is verified correctly, the portable drilling protective guardrail is lifted to the hole opening position through the lifting ring 3, and the inner diameter edge is made to coincide with the edge of the steel casing 9.

[0038] Move the drill bit into the portable drilling protective guardrail, install the protective door 5 in the round steel cylinder 4 to form a closed working space. After the drill bit finds the position through the steel casing 9, start drilling. When drilling to a certain position, pause drilling, install the limiting component 7. As Figure 3 shown, turn the extension rod 74 to the same horizontal position as the screw rod 72, screw the screw rod 72 towards the drill rod 8 until the rollers 75 fit the outer wall of the drill rod 8, and continue drilling. The drill rod 8 continues to move vertically downward under the action of the limiting component 7.

[0039] During the process of replacing the drill bit and slag bucket, etc., the protective door 5 is withdrawn to allow the drill bit to pass through smoothly. After completion, it is returned to its original position and drilling continues. Repeat the above steps until the entire drilling work is completed.

[0040] The above has described in detail an embodiment of the present utility model. However, the content described is only a preferred embodiment of the present utility model and cannot be considered as used to limit the scope of implementation of the present utility model. All equivalent changes and improvements made within the scope of the application of the present utility model should still fall within the scope covered by the patent of the present utility model.

Claims

1. A portable drilling protection guardrail, used in conjunction with a steel casing (9), characterized in that: It comprises a protective steel plate (1), a protective kick plate (2), a lifting ring (3) and a guardrail (6), A circular hole is provided in the middle of the protective steel plate (1). The protective kick plate (2) is matched with and fixedly connected to the outer edge of the circular hole. There are a plurality of lifting rings (3), the bottom of each lifting ring (3) is fixedly connected to the protective steel plate (1), and one side of each lifting ring (3) is fixedly connected to the protective kick plate (2). The bottom of the guardrail (6) is fixedly connected to the protective kick plate (2), and the inner diameter of the guardrail (6) matches the outer diameter of the steel casing (9).

2. A portable drilling protection guardrail according to claim 1, characterized in that: The guardrail (6) comprises a plurality of guardrail uprights (61), the guardrail uprights (61) being arranged around the protective kick plate (2), the plurality of guardrail uprights (61) being fixedly connected to a guardrail connecting ring (62), the inner diameter of the guardrail connecting ring (62) being the same as the inner diameter of the protective kick plate (2), and the diameter of the inscribed circle trajectory formed by the plurality of guardrail uprights (61) matching the outer diameter of the steel casing (9).

3. A portable drilling protection guardrail according to claim 1, characterized in that: The lifting rings (3) are evenly distributed on the outer edge of the protective kick plate (2).

4. A portable drilling protection guardrail according to claim 1, characterized in that: The lifting ring (3) is a door-type lifting ring (3).

5. A portable drilling protection guardrail according to claim 2, characterized in that: It also includes a round steel cylinder (4) and a protective door (5), wherein there are a plurality of round steel cylinders (4), the round steel cylinders (4) are fixedly connected to the inner wall of the protective kick plate (2), the protective door (5) is provided with a plurality of protective door uprights (51) corresponding to the spacing of the round steel cylinders (4), the outer diameter of the protective door uprights (51) matches the inner diameter of the round steel cylinder (4), the protective door uprights (51) are fixedly connected via a protective door connecting ring (52), the protective door connecting ring (52) has the same outer diameter as the guardrail (6), and the guardrail (6) is disconnected at both ends of the protective door (5).

6. A portable drilling protection guardrail according to claim 5, characterized in that: The guardrail uprights (61) and the protective door uprights (51) are evenly distributed, and the guardrail (6) and the protective door (5) form a full circle.

7. A portable drilling protection guardrail according to claim 5, characterized in that: It also comprises a limiting component (7), wherein there are a plurality of limiting components (7), and wherein the limiting components (7) pass through the guardrail (6) and are firmly connected to the guardrail (6).

8. A portable drilling protection guardrail according to claim 7, characterized in that: The limiting assembly (7) comprises a nut (71), a screw rod (72), an extension rod (74) and a roller (75); the screw rod (72) passes through the guardrail (6); the screw rod (72) is connected to the guardrail (6) and the protective door (5) via the nut (71); one end of the extension rod (74) is rotatably connected to the screw rod (72); and the other end of the extension rod (74) is provided with the roller (75).

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