Bored pile protection device

Abstract

The utility model relates to the technical field of pile foundation engineering, concretely relates to cast-in-place pile protection device, including steel casing, the outside of steel casing top is provided with the protection assembly for protecting cast-in-place pile hole, the protection assembly includes the first protection cover and second protection cover of installing in the outside of steel casing top, the utility model discloses through setting up protection assembly and sample mouth subassembly, have realized all -round, high -strength protection to cast-in-place pile hole again, have met the demand of fast, safe sampling under the premise of not demolishing the protection structure, protection assembly can effectively cover steel casing top, have good sealing property and rain -proof performance, sample mouth subassembly is integrated on the protection cover, and the soil sample collection is convenient, and the both work in coordination, not only solve the problem such as traditional steel net or steel frame structure protection not strict, rain -proof performance is poor, sampling is inconvenient, still significantly improve the operation efficiency and safety guarantee level of cast-in-place pile construction site.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation engineering technology, and in particular to a protective device for cast-in-place piles. Background Technology

[0002] In the construction of pile foundation projects, cast-in-place piles are a common type of foundation. To ensure construction safety and control the quality of hole formation, effective protection is usually required at the hole opening after hole formation and before concrete pouring to prevent personnel from falling in, foreign objects from falling in, or rainwater from entering the pile hole. At the same time, after the cast-in-place pile hole is formed, soil samples need to be taken and analyzed to understand the geological conditions and guide subsequent construction.

[0003] In the prior art, such as the "A Protective Device for the Borehole of a Drilled Pile" with announcement number CN222614161U, a protective body is included. The protective body includes a base frame and a top frame. Multiple side frames are provided between the base frame and the top frame. A cover plate is rotatably connected to the top frame, and a warning component is provided on the cover plate. A through hole is provided on the base frame, located below the cover plate. Multiple fixing rods are provided on the edge of the base frame, and baffles are movably connected to the side frames. Although this technology can solve the technical problem of insufficient protection effect of existing protective structures for the borehole opening, this technology still has some defects in practical use: In the prior art, a steel casing is usually installed before the construction of the bored pile to prevent the borehole opening from being damaged during drilling or... During the excavation process, a collapse occurred. However, the steel frame structure used to protect the pile hole had several shortcomings in actual use: Firstly, there were many gaps at the connection points between the steel frames, resulting in a limited protection range, low overall strength, and an inability to effectively prevent rainwater from entering the pile hole. This could easily lead to water accumulation and collapse in the hole during rainy weather, resulting in poor rain protection. Secondly, because the protective structure was rigidly fixed, the entire steel frame had to be moved away when soil sampling was required. This was cumbersome, time-consuming, and labor-intensive, affecting construction efficiency and posing a significant safety hazard due to the risk of equipment slipping and falling into the pile hole during transport. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a protective device for cast-in-place piles to solve the problems of low protective strength, poor rain protection performance and inconvenient sampling in existing protective devices for pile holes.

[0005] To achieve the above objectives, this utility model provides a protective device for cast-in-place piles, including a steel casing. A protective assembly for protecting the cast-in-place pile hole is provided on the outer side of the top of the steel casing. The protective assembly includes a first protective cover and a second protective cover installed on the outer side of the top of the steel casing. Both the first and second protective covers are arc-shaped, and when combined, they form a circle. When the first and second protective covers are placed on top of the steel casing, they respectively cover both sides of the top of the steel casing. A sampling port assembly is provided on the top of the first protective cover, which is used by workers to take soil samples from the cast-in-place well.

[0006] Preferably, the top of the second protective cover has a slot, and a plug plate is fixedly connected to one side of the top of the first protective cover. The size of the plug plate is adapted to the size of the slot. A matching groove is provided at the bottom of the connection between the top of the first protective cover and the plug plate. When the first protective cover and the second protective cover are connected, the plug plate is inserted into the slot, and the second protective cover is inserted into the matching groove on one side of the slot.

[0007] Preferably, two connecting cylinders are fixedly connected to the sides of the first and second protective covers that are far apart from each other. The connecting cylinders are internally threaded with a fixing post. A crank is fixedly connected to the top of the fixing post, and the bottom of the fixing post is conical.

[0008] Preferably, a handle is fixedly connected to the top of the first protective cover and the second protective cover respectively.

[0009] Preferably, the sample port assembly includes a sampling cylinder fixedly connected to the top of the first protective cover, the inside of the sampling cylinder being connected to the inside of the first protective cover, a counterweight cover being installed on the top of the sampling cylinder, an arc-shaped groove being provided on one side of the top of the second protective cover, and when the insert plate is inserted into the slot, one side of the bottom of the sampling cylinder is in contact with one side of the arc-shaped groove.

[0010] Preferably, an L-shaped frame is fixedly connected to the top of the first protective cover, and a positioning wheel is installed at the bottom of the L-shaped frame away from the first protective cover. A traction rope is slidably connected to the outside of the positioning wheel, and one end of the traction rope is fixedly connected to the top of the middle part of the counterweight cover.

[0011] Preferably, a pulley is installed on one side of the top of the L-shaped frame, a connecting frame is fixedly connected to one side of the bottom of the L-shaped frame, and a rope take-up roller is rotatably connected to the side of the connecting frame away from the L-shaped frame. The end of the traction rope away from the counterweight cover passes through the positioning wheel and the outside of the pulley and is fixedly connected to the outside of the rope take-up roller.

[0012] Preferably, a positioning plate is fixedly connected to one side of one end of the connecting frame, and a rotating wheel is fixedly connected to one side of the rope take-up roller through the connecting frame and the interior of the positioning plate via a shaft.

[0013] Preferably, a positioning cylinder is fixedly connected to one side of the rotating wheel, and an insert rod is slidably engaged inside the positioning cylinder. A plurality of positioning holes are equidistantly opened in a ring on one side of the positioning disk, and one end of the insert rod passes through the inside of the positioning cylinder and connects to the inside of the positioning hole.

[0014] The beneficial effects of this utility model are: 1. Through the integrated design of the protective and sampling components, the protective and sampling components provide comprehensive and high-strength protection for the cast-in-place pile borehole while meeting the need for quick and safe sampling without dismantling the protective structure. The protective components effectively cover the top of the steel casing, providing excellent sealing and rainproof performance, preventing debris, rainwater, and personnel from accidentally entering the pile borehole, thus improving the safety and adaptability of on-site construction. The sampling components are integrated into the protective cover, and can be opened and closed controllably through a counterweight cover and traction system, facilitating soil sample collection and avoiding cumbersome disassembly and the risk of equipment falling. The two components work together to solve the problems of inadequate protection, poor rainproof performance, and inconvenient sampling associated with traditional steel mesh or steel frame structures, and significantly improve the operational efficiency and safety level of the cast-in-place pile construction site.

[0015] The protective components, consisting of a first protective cover and a second protective cover in an arc shape, together cover the top of the steel casing, effectively sealing the pile hole opening. This overcomes the problems of numerous gaps and inadequate protection found in existing steel frame protective structures. The protective cover has high structural strength, effectively preventing personnel from accidentally entering or debris from falling into the pile hole, ensuring construction safety. At the same time, the protective cover has excellent sealing performance. When the two are combined, they are connected by inserting a plate into a slot, avoiding seams and effectively blocking rainwater. This prevents problems such as mud backflow or water entering the pile hole during rainy weather, significantly improving rainproof performance and solving the shortcomings of existing protective devices that cannot effectively protect against severe weather.

[0016] By integrating the sampling port assembly onto the first protective cover, the function of quickly sampling the soil in the pile hole under protective conditions is realized, avoiding the cumbersome steps of having to completely disassemble the protective device before sampling, as required by existing technologies. The sampling port assembly includes a sampling tube, a counterweight cover, a traction rope, and a rope winding structure. It is easy to operate, safe and reliable, saving manpower and resources, and avoiding the problems of equipment slippage or pile hole contamination that may occur due to the disassembly of the protective structure. It effectively improves sampling efficiency and on-site construction safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram showing the connection between the first protective cover and the second protective cover of this utility model; Figure 3 This is a schematic diagram of the sample port assembly structure of this utility model; Figure 4 This is a schematic diagram of the structure of the second protective cover of this utility model; Figure 5 This is a schematic diagram showing the connection between the counterweight cover and the sampling cylinder of this utility model.

[0019] The diagram is marked as follows: 1. Steel casing; 2. First protective cover; 3. Second protective cover; 4. Connecting cylinder; 5. Fixing post; 6. Slot; 7. Insert plate; 8. Alignment slot; 9. Sampling cylinder; 10. Counterweight cover; 11. Traction rope; 12. L-shaped frame; 13. Positioning wheel; 14. Pulley; 15. Connecting frame; 16. Rope take-up roller; 17. Positioning plate; 18. Positioning cylinder; 19. Insert rod; 20. Positioning hole; 21. Rotating wheel; 22. Handle; 23. Arc groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] Such as this utility model Figures 1 to 5 The diagram shows a protective device for cast-in-place piles, including a steel casing 1. The top of the steel casing 1 is provided with a protective component for protecting the cast-in-place pile hole. The protective component includes a first protective cover 2 and a second protective cover 3 installed on the top of the steel casing 1. The first protective cover 2 and the second protective cover 3 are both arc-shaped and form a circle when combined. When the first protective cover 2 and the second protective cover 3 are placed on the top of the steel casing 1, the first protective cover 2 and the second protective cover 3 cover the two sides of the top of the steel casing 1 respectively. A sampling port component is provided on the top of the first protective cover 2. The sampling port component is used by workers to take soil samples from the cast-in-place well. By integrating the protective and sampling components, the integrated design of the protective and sampling components provides comprehensive and high-strength protection for the cast-in-place pile hole while meeting the need for quick and safe sampling without dismantling the protective structure. The protective component effectively covers the top of the steel casing 1, providing excellent sealing and rainproof performance, preventing debris, rainwater, and personnel from accidentally entering the pile hole, thus improving the safety and adaptability of on-site construction. The sampling component is integrated into the protective cover, and its controllable opening and closing is achieved through the counterweight cover 10 and the traction system, facilitating soil sample collection and avoiding cumbersome disassembly and the risk of equipment falling. The two components work together to solve the problems of inadequate protection, poor rainproof performance, and inconvenient sampling associated with traditional steel mesh or steel frame structures, and significantly improves the operational efficiency and safety level of the cast-in-place pile construction site.

[0023] like Figures 1 to 4 As shown, the top of the second protective cover 3 is provided with a slot 6, and a plug plate 7 is fixedly connected to one side of the top of the first protective cover 2. The specifications and dimensions of the plug plate 7 are adapted to the specifications and dimensions of the slot 6. A matching groove 8 is provided at the bottom of the connection between the top of the first protective cover 2 and the plug plate 7. When the first protective cover 2 and the second protective cover 3 are connected, the plug plate 7 is inserted into the inside of the slot 6, and the second protective cover 3 is located on one side of the slot 6 and inserted into the inside of the matching groove 8. With the slot 6 and insert plate 7 in place, when protecting the top of the steel casing 1, the second protective cover 3 is first placed on top of the steel casing 1, covering half of the top. Then, the first protective cover 2 is placed on top of the steel casing 1. When placing the first protective cover 2, it inserts into the slot 6 through the insert plate 7, ensuring a seamless connection between the first and second protective covers 3. The top of the steel casing 1 is then completely sealed by the first and second protective covers 2 and 3, thus providing protection. Simultaneously, the slot 6 and insert plate 7 prevent any seams from forming when the first and second protective covers 2 and 3 are connected. This design avoids the problem of rainwater entering the steel casing 1 through gaps. The first protective cover 2 and the second protective cover 3 are combined to cover the top of the steel casing 1, effectively sealing the pile hole. This overcomes the problems of numerous gaps and inadequate protection in existing steel frame protective structures. The protective cover has high structural strength and can effectively prevent personnel from accidentally entering or debris from falling into the pile hole, ensuring construction safety. At the same time, the protective cover has good sealing performance. When the two are put together, they are connected by inserting the insert plate 7 into the slot 6 to avoid seams. This can effectively block rainwater and prevent problems such as mud backflow or water entering the pile hole during rainy days, significantly improving rainproof performance and solving the defect of existing protective devices that cannot effectively protect in severe weather.

[0024] like Figures 1 to 4 As shown, two connecting cylinders 4 are fixedly connected to the sides of the first protective cover 2 and the second protective cover 3 that are far apart from each other. A fixing post 5 is connected to the inside of the connecting cylinder 4 by a thread. A crank is fixedly connected to the top of the fixing post 5, and the bottom of the fixing post 5 is conical. Handles 22 are fixedly connected to the top of the first protective cover 2 and the second protective cover 3 respectively. With the connecting cylinder 4 and fixing post 5 in place, when the first protective cover 2 and the second protective cover 3 cover the top of the steel casing 1, the crank at the top of the fixing post 5 is rotated, and the bottom of the fixing post 5 is set to be conical, so that the bottom of the fixing post 5 is inserted into the soil. This ensures that the protective components can be firmly fixed to the steel casing 1 during use, enhancing wind resistance and disturbance resistance, and making it suitable for complex field conditions. At the same time, the handle 22 facilitates the initial installation of the first protective cover 2 and the second protective cover 3, as well as the subsequent removal of the first protective cover 2 and the second protective cover 3 from the top of the steel casing 1.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the sample port assembly includes a sampling cylinder 9 fixedly connected to the top of the first protective cover 2. The inside of the sampling cylinder 9 is connected to the inside of the first protective cover 2. A counterweight cover 10 is installed on the top of the sampling cylinder 9. An arc groove 23 is opened on one side of the top of the second protective cover 3. When the insert plate 7 is inserted into the slot 6, one side of the bottom of the sampling cylinder 9 contacts one side of the arc groove 23. By integrating the sampling port assembly onto the first protective cover 2, the function of quickly sampling the soil in the pile hole under protective conditions is realized, avoiding the cumbersome steps of having to completely disassemble the protective device before sampling in the prior art. The sampling port assembly includes a sampling cylinder 9, a counterweight cover 10, a traction rope 11, and a rope winding structure. It is simple to operate, safe and reliable, saving manpower and material resources, and avoiding the problems of equipment slippage or pile hole contamination that may be caused by disassembling the protective structure. It effectively improves sampling efficiency and on-site construction safety. At the same time, through the arc groove 23, when the first protective cover 2 and the second protective cover 3 are connected, one side of the bottom of the sampling cylinder 9 contacts one side of the arc groove 23, so that the sampling cylinder 9 can be located between the first protective cover 2 and the second protective cover 3, which facilitates the insertion of the sampling rope and thus facilitates sample collection.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, an L-shaped frame 12 is fixedly connected to the top of the first protective cover 2. A positioning wheel 13 is installed at the bottom of the L-shaped frame 12 away from the first protective cover 2. A traction rope 11 is slidably connected to the outside of the positioning wheel 13. One end of the traction rope 11 is fixedly connected to the top of the middle part of the counterweight cover 10. A pulley 14 is installed on one side of the top of the L-shaped frame 12. A connecting frame 15 is fixedly connected to one side of the bottom of the L-shaped frame 12. A rope take-up roller 16 is rotatably connected to the side of the connecting frame 15 away from the L-shaped frame 12. The end of the traction rope 11 away from the counterweight cover 10 passes through the outside of the positioning wheel 13 and the pulley 14 and is fixedly connected to the outside of the rope take-up roller 16. With the provided counterweight cover 10 and traction rope 11, during sampling, the counterweight cover 10 can be removed from the top of the sampling cylinder 9 by pulling the traction rope 11, causing the opening of the sampling cylinder 9 to be opened, thus facilitating sampling. At the same time, the configuration of the counterweight cover 10 can prevent animals from easily pushing it open, and can also improve the wind resistance of the counterweight cover 10. In addition, the traction rope 11 makes it easy to put on and take off the counterweight cover 10, avoiding the trouble of manual handling.

[0027] like Figures 1 to 3 As shown, a positioning disk 17 is fixedly connected to one side of one end of the connecting frame 15. A rotating wheel 21 is fixedly connected to one side of the winding roller 16 through the connecting frame 15 and the interior of the positioning disk 17 via a shaft. A positioning cylinder 18 is fixedly connected to one side of the rotating wheel 21. An insert rod 19 is slidably engaged inside the positioning cylinder 18. Multiple positioning holes 20 are equidistantly opened in a ring on one side of the positioning disk 17. One end of the insert rod 19 passes through the interior of the positioning cylinder 18 and connects to the interior of the positioning hole 20. With the positioning disc 17 and rotating wheel 21, during sampling, rotating the rotating wheel 21 drives the winding roller 16 to wind up one end of the traction rope 11. At this time, the other end of the traction rope 11 will pull the counterweight cover 10 away from the top of the sampling cylinder 9, thereby causing the opening at the top of the sampling cylinder 9 to be opened, thus facilitating sampling. At the same time, with the setting of the insertion rod 19 and positioning hole 20, when the counterweight cover 10 rises to a certain height, one end of the insertion rod 19 is inserted into the positioning hole 20 for positioning, thus facilitating the positioning of the counterweight cover 10. In addition, with the setting of multiple positioning holes 20, the height of the counterweight cover 10 can also be positioned according to the needs, thus facilitating sampling. It should also be noted that in actual use, a motor can be set on one side of the winding roller 16 for connection, and a mobile power supply can be used to drive the motor to drive the winding roller 16 to rotate and wind up the rope, thus avoiding the trouble of manual cranking.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0029] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

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