Pipe blocking prevention device for perfusion
By setting up an inner cylindrical surface on the inner wall of the counterhole steel pipe and applying anti-waxed paint, combining anti-corrosion coatings and positioning steel bar components, the problems of wear and pipe blocking of the inner wall of the counterhole steel pipe are solved, and the quality and efficiency of the construction of the cast-injected piles are improved.
Patent Information
- Application Number
- CN202422701766.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-06
AI Technical Summary
The existing cast-injected pile pulling device has severely worn on the inner wall of the counter-hole steel pipe, resulting in the steel cage being easily taken out or the concrete being blocked from the pipe, affecting the construction quality and difficulty.
The inner cylindrical surface is set on the inner wall of the counterhole steel pipe and coated with anti-knot wax coating. Combined with anti-corrosion coating and positioning steel bar components, ensure the positioning of the steel cage and the stability of the counterhole steel pipe, and reduce the risk of wear and pipe blocking.
It improves the smoothness of the counterhole steel pipe when pulling out, reduces the concrete stripping and pipe blocking, and extends the service life of the device and the stability of construction.
Smart Images

Figure CN223240679U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of devices for bored piles in building pile foundation construction, and in particular to a bored pile anti-blocking pipe device. Background Art
[0002] The patent with the published authorization announcement number CN202073090U discloses a device for preventing cast-in-place piles from pulling out pipes with a steel cage and anti-blocking pipes. The device mainly consists of a countersunk steel pipe and a steel cage. The inner wall of the countersunk steel pipe adopts a complete and smooth inner cylindrical surface. The lower part of the general steel cage is made into a taper with an inclination of 30°-70°. The top of the cone welds the bottom inclined steel bars with steel plates to form a load-bearing structure. A plurality of anti-hanging positioning steel bars are welded on the outer circumference of the steel cage. The positioning steel bars are welded at a certain distance in the axial direction of the steel cage. The patent has a simple structure and is easy to operate. It can effectively prevent the steel cage from being pulled out or bringing out the concrete to be solidified when pulling out the pipe in concrete cast-in-place pile construction. It is also not easy to cause pipe blockage, thereby ensuring the quality of the project.
[0003] The device for preventing the cast-in-place pile from pulling out the pipe with the steel cage and preventing the pipe from blocking in the above-mentioned patent only provides an inner cylindrical surface on the inner wall of the countersunk steel pipe, and its anti-blocking effect is poor. When the countersunk steel pipe is pulled out, the inner wall of the countersunk steel pipe will inevitably be worn. When the inner wall of the countersunk steel pipe is seriously damaged, it does not have a smooth effect, and the steel cage will be pulled out, or part of the concrete to be solidified will be pulled out, thereby causing waste piles, which greatly affects the construction quality. At the same time, the concrete to be solidified is easy to block the pipe, increasing the difficulty of construction.
[0004] To this end, the present application proposes a perfusion anti-blocking pipe device. Utility Model Content
[0005] The present application proposes a pouring anti-blocking pipe device to solve the problems raised in the above-mentioned background technology; by setting the inner wall of the countersunk steel pipe as an inner cylindrical surface, the surface of the inner cylindrical surface is smooth, which is not easy to bring out the concrete to be solidified, and at the same time, it is not easy to block the pipe. By applying anti-wax coating on the inner wall of the countersunk steel pipe, the heat deformation resistance and adhesion of the countersunk steel pipe can be improved. It is mainly suitable for the inner wall of the pipeline, which can greatly increase the conveying volume or reduce the pipeline conveying pressure, and prevent or reduce the adhesion of steel structures and reinforced concrete surfaces in other projects. The surface finish is high and the conveying resistance is reduced, thereby improving the smoothness of the countersunk steel pipe when pulling out, reducing the anti-blocking situation and greatly improving the practicality of the device.
[0006] In order to achieve the above objectives, this application adopts the following technical solutions:
[0007] A pouring anti-blocking pipe device includes a countersunk steel pipe, an anti-blocking pipe assembly is arranged inside the countersunk steel pipe, and the anti-blocking pipe assembly includes an anti-wax coating and an inner cylindrical surface. The anti-wax coating is coated on the inner wall of the countersunk steel pipe, and the interior of the countersunk steel pipe is set as an inner cylindrical surface.
[0008] As a preferred embodiment, the exterior of the countersunk steel pipe is provided with an anti-corrosion component, the anti-corrosion component includes an anti-corrosion coating, and the anti-corrosion coating is coated on the exterior of the countersunk steel pipe;
[0009] By applying anti-corrosion paint on the surface of an object, a thin film can be formed under certain conditions to provide protection, which has the characteristics of anti-corrosion effect and prolonging service life, thereby improving the practicality of the device.
[0010] As a preferred embodiment, a steel bar assembly is provided inside the countersunk steel pipe, and the steel bar assembly includes a steel bar cage, which is provided inside the countersunk steel pipe, and a plurality of positioning steel bars are provided outside the steel bar cage, and a plurality of bottom slope steel bars are provided at the bottom of the steel bar cage, and a bottom cone-top circular steel plate is fixedly connected to the inner side of the bottom end of each bottom slope steel bar;
[0011] By positioning the steel bars and utilizing their elasticity, the influence of uneven inner wall of the countersunk steel pipe and thickening inside the steel pipe joint can be avoided, so that the steel cage can be positioned and centered, which can prevent the steel cage from being pulled out, thereby improving the practicality of the device.
[0012] As a preferred embodiment, the outside of the countersunk steel pipe is fixedly connected to a fixing assembly, and the fixing assembly includes a top plate, the top plate is fixedly connected to the outside of the countersunk steel pipe, and a bottom plate is fixedly connected to the outside of the countersunk steel pipe and located below the top plate;
[0013] The countersunk steel pipe can be limited and positioned by the top plate and the bottom plate, so that it is in a stable state during use, thereby improving the practicality of the device.
[0014] As a preferred embodiment, the top of the top plate is fixedly connected to a positioning assembly, the positioning assembly includes a pull rod, two pull rods are fixedly connected to the top of the top plate, the top ends of the two pull rods are fixedly connected to a positioning plate, and the interiors of the two positioning plates are threadedly connected to positioning bolts;
[0015] The top plate is positioned by connecting the positioning plate to the top plate through a pull rod and fixing the positioning plate with positioning bolts. As a result, the countersunk steel pipe can be positioned so that it can maintain a stable state during use and is not prone to displacement. In addition, the use effect of the countersunk steel pipe is enhanced, thereby improving the practicality of the device.
[0016] As a preferred embodiment, the bottom of the base plate is fixedly connected to a limiting assembly, and the limiting assembly includes limiting screws, and two limiting screws are fixedly connected to the bottom of the base plate;
[0017] By driving the limiting screw into the interior, the bottom plate is fixed, thereby preliminarily limiting the countersunk steel pipe to prevent the countersunk steel pipe from moving during use, thereby improving the practicality of the device.
[0018] Beneficial effects of this application:
[0019] 1. This pouring anti-blocking pipe device sets the inner wall of the countersunk steel pipe as an inner cylindrical surface. The inner cylindrical surface is smooth and is not easy to bring out the concrete to be solidified. At the same time, it is not easy to block the pipe. By applying anti-wax coating on the inner wall of the countersunk steel pipe, the heat-resistant deformation resistance and adhesion of the countersunk steel pipe can be improved. It is mainly suitable for the inner wall of the pipeline, which can greatly increase the conveying volume or reduce the pipeline conveying pressure. It can also prevent or reduce the adhesion of steel structures and reinforced concrete surfaces in other projects. The surface finish is high and the conveying resistance is reduced. Therefore, the smoothness of the countersunk steel pipe when being pulled out is improved, the anti-blocking situation is reduced and the practicality of the device is greatly improved.
[0020] 2. This kind of grouting anti-blocking pipe device, when the countersunk steel pipe sinks, the bottom plate will be driven into the inside through the limit screw to fix the bottom plate, thereby performing preliminary limiting on the countersunk steel pipe to prevent the countersunk steel pipe from moving during use. After the countersunk steel pipe sinks, the positioning plate connected to the top plate through the pull rod is fixed with the positioning bolt, thereby positioning the top plate. In this way, the countersunk steel pipe can be positioned so that it can maintain a stable state during use and is not prone to displacement. Furthermore, the use effect of the countersunk steel pipe is enhanced and the practicality of the device is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the interior of the device of this application;
[0022] Figure 2 For this application Figure 1 Enlarged view of point A in the middle;
[0023] Figure 3 For this application Figure 1 Enlarged view of point B in the middle.
[0024] Numbers in the figure: 1. Countersunk steel pipe; 2. Anti-blocking pipe assembly; 21. Anti-waxing coating; 22. Inner cylindrical surface; 3. Anti-corrosion assembly; 31. Anti-corrosion coating; 4. Steel bar assembly; 41. Steel bar cage; 42. Positioning steel bar; 43. Bottom slope steel bar; 44. Bottom cone-top round steel plate; 5. Fixing assembly; 51. Top plate; 52. Bottom plate; 6. Positioning assembly; 61. Pull rod; 62. Positioning plate; 63. Positioning bolt; 7. Limit assembly; 71. Limit screw. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with 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.
[0026] Reference Figure 1-3 , a pouring anti-blocking pipe device, including a countersunk steel pipe 1.
[0027] An anti-blocking pipe assembly 2 is provided inside the countersunk steel pipe 1, and the anti-blocking pipe assembly 2 includes an anti-wax coating 21 and an inner cylindrical surface 22. The anti-wax coating 21 is coated on the inner wall of the countersunk steel pipe 1, and the interior of the countersunk steel pipe 1 is set as the inner cylindrical surface 22; the inner wall of the countersunk steel pipe 1 is set as the inner cylindrical surface 22, and the surface of the inner cylindrical surface 22 is smooth, which is not easy to bring out the concrete to be solidified. At the same time, it is not easy to block the pipe. By coating the anti-wax coating 21 on the inner wall of the countersunk steel pipe 1, the heat deformation resistance and adhesion of the countersunk steel pipe 1 can be improved. It is mainly suitable for the inner wall of the pipeline, which can greatly increase the conveying volume or reduce the pipeline conveying pressure, and prevent or reduce the adhesion of steel structures and reinforced concrete surfaces in other projects. The surface finish is high and the conveying resistance is reduced, thereby improving the smoothness of the countersunk steel pipe 1 when pulled out and reducing the anti-blocking situation.
[0028] An anti-corrosion component 3 is provided on the outside of the countersunk steel pipe 1, and the anti-corrosion component 3 includes an anti-corrosion coating 31, which is applied to the outside of the countersunk steel pipe 1; the anti-corrosion coating 31 is applied to the surface of the object to form a thin film under certain conditions to provide protection, thereby having an anti-corrosion effect and extending the service life, thereby improving the practicality of the device.
[0029] A steel bar assembly 4 is provided inside the countersunk steel pipe 1, and the steel bar assembly 4 includes a steel bar cage 41. The steel bar cage 41 is provided inside the countersunk steel pipe 1, and a plurality of positioning steel bars 42 are provided outside the steel bar cage 41. A plurality of bottom slope steel bars 43 are provided at the bottom of the steel bar cage 41, and a bottom cone-top circular steel plate 44 is fixedly connected to the inner side of the bottom end of each bottom slope steel bar 43; the positioning steel bar 42 can avoid the influence of the uneven inner wall of the countersunk steel pipe 1 and the thickening inside the steel pipe joint by utilizing its elasticity, so that the steel bar cage 41 is positioned and centered, which can prevent the steel bar cage 41 from being pulled out, thereby improving the practicality of the device.
[0030] The outside of the countersunk steel pipe 1 is fixedly connected to a fixing assembly 5, which includes a top plate 51, which is fixedly connected to the outside of the countersunk steel pipe 1, and a bottom plate 52 is fixedly connected to the outside of the countersunk steel pipe 1 and located below the top plate 51; the countersunk steel pipe 1 can be limited and positioned by the top plate 51 and the bottom plate 52, so that it is in a stable state during use, thereby improving the practicality of the device.
[0031] The top of the top plate 51 is fixedly connected with a positioning assembly 6, and the positioning assembly 6 includes a pull rod 61. The two pull rods 61 are fixedly connected to the top of the top plate 51. The top ends of the two pull rods 61 are fixedly connected with a positioning plate 62, and the interiors of the two positioning plates 62 are threadedly connected with positioning bolts 63; by fixing the positioning plates 62 connected to the top plate 51 through the pull rods 61, the positioning bolts 63 are used to fix the positioning plates 62, thereby positioning the top plate 51. As a result, the countersunk steel pipe 1 can be positioned so that it can maintain a stable state during use and is not prone to displacement, thereby enhancing the use effect of the countersunk steel pipe 1 and improving the practicality of the device.
[0032] The bottom of the base plate 52 is fixedly connected to a limiting assembly 7, which includes limiting screws 71. Two limiting screws 71 are fixedly connected to the bottom of the base plate 52. The limiting screws 71 are driven into the interior to fix the base plate 52, thereby preliminarily limiting the countersunk steel pipe 1 to prevent the countersunk steel pipe 1 from moving during use, thereby improving the practicality of the device.
[0033] Working principle: When the device is used, the elasticity of the positioning steel bar 42 can avoid the influence of the uneven inner wall of the countersunk steel pipe 1 and the thickening inside the steel pipe joint, so that the steel cage 41 is positioned and centered, which can prevent the steel cage 41 from being pulled out.
[0034] By setting the inner wall of the countersunk steel pipe 1 as an inner cylindrical surface 22, the surface of the inner cylindrical surface 22 is smooth, which is not easy to bring out the concrete to be solidified. At the same time, it is not easy to cause pipe blockage. By applying anti-wax coating 21 on the inner wall of the countersunk steel pipe 1, the heat deformation resistance and adhesion of the countersunk steel pipe 1 can be improved. It is mainly suitable for the inner wall of the pipeline, which can greatly increase the conveying volume or reduce the pipeline conveying pressure, and prevent or reduce the adhesion of steel structures and reinforced concrete surfaces in other projects. The surface finish is high and the conveying resistance is reduced, thereby improving the smoothness of the countersunk steel pipe 1 when pulled out and reducing the blockage situation.
[0035] When the countersunk steel pipe 1 sinks, the bottom plate 52 will be driven into the inside through the limiting screw 71 to fix the bottom plate 52, thereby preliminarily limiting the countersunk steel pipe 1 to prevent the countersunk steel pipe 1 from moving during use.
[0036] When the countersunk steel pipe 1 sinks, the top plate 51 is connected to the positioning plate 62 through the pull rod 61, and the positioning bolts 63 are used to fix the positioning plate 62, thereby positioning the top plate 51. In this way, the countersunk steel pipe 1 can be positioned so that it can maintain a stable state during use and is not prone to displacement, thereby enhancing the use effect of the countersunk steel pipe 1.
[0037] The above are only preferred specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present application within the technical scope disclosed in the present application, and they should be covered by the protection scope of the present application.
Claims
1. A pouring anti-blocking pipe device, comprising a countersunk steel pipe (1), characterized in that: An anti-blocking pipe assembly (2) is provided inside the countersunk steel pipe (1), and the anti-blocking pipe assembly (2) comprises an anti-wax coating (21) and an inner cylindrical surface (22). The anti-wax coating (21) is applied on the inner wall of the countersunk steel pipe (1), and the interior of the countersunk steel pipe (1) is provided as the inner cylindrical surface (22).
2. A perfusion anti-blocking pipe device according to claim 1, characterized in that: An anti-corrosion component (3) is provided on the outside of the countersunk steel pipe (1). The anti-corrosion component (3) includes an anti-corrosion coating (31). The anti-corrosion coating (31) is applied on the outside of the countersunk steel pipe (1).
3. The anti-blocking pipe perfusion device according to claim 1, characterized in that: A steel bar assembly (4) is provided inside the countersunk steel pipe (1), and the steel bar assembly (4) includes a steel bar cage (41). The steel bar cage (41) is provided inside the countersunk steel pipe (1), and a plurality of positioning steel bars (42) are provided outside the steel bar cage (41). A plurality of bottom slope steel bars (43) are provided at the bottom of the steel bar cage (41), and a bottom cone-top circular steel plate (44) is fixedly connected to the inner side of the bottom end of each bottom slope steel bar (43).
4. The anti-blocking pipe perfusion device according to claim 1, characterized in that: The exterior of the countersunk steel pipe (1) is fixedly connected to a fixing assembly (5), the fixing assembly (5) comprising a top plate (51), the top plate (51) being fixedly connected to the exterior of the countersunk steel pipe (1), and a bottom plate (52) being fixedly connected to the exterior of the countersunk steel pipe (1) and located below the top plate (51).
5. The anti-blocking pipe perfusion device according to claim 4, characterized in that: The top of the top plate (51) is fixedly connected to a positioning assembly (6), and the positioning assembly (6) includes a pull rod (61). The two pull rods (61) are fixedly connected to the top of the top plate (51), and the top ends of the two pull rods (61) are fixedly connected to a positioning plate (62). The interiors of the two positioning plates (62) are threadedly connected to positioning bolts (63).
6. The anti-blocking pipe perfusion device according to claim 4, characterized in that: The bottom of the base plate (52) is fixedly connected to a limiting assembly (7), and the limiting assembly (7) includes a limiting screw (71), and the two limiting screws (71) are fixedly connected to the bottom of the base plate (52).
Citation Information
Patent Citations
Device for preventing steel reinforcement cage from being brought up and preventing pipe obstruction in the process of pulling pipes from cast-in-place pile
CN202073090U