Pile head protector capable of being repeatedly used and suitable for multi-aperture prefabricated pipe pile
By designing a pile head protector suitable for multi-porous prefabricated pipe piles, the combination of sealing parts, screw components and rotary sealing plates is used to solve the problems of debris falling into the top of the prefabricated pipe pile and slipping the cover, and the problem of debris falling into the top of the pile is realized. The effects of construction safety and process simplification.
Patent Information
- Application Number
- CN202421285450.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-06
AI Technical Summary
During the pile sinking process and after the pile sinking process, the pile top is easily lower than the ground, causing the hollow part to fall into debris and other debris, which is difficult to clean, affect the core filling work, and poses safety risks; traditional sealing methods are easy to Slide.
Design a reusable pile head protector, including a sealing member adapted to a multi-porous prefabricated pipe pile, on which the sealing member is provided is provided with a first screw assembly, a second screw assembly and a rotary sealing plate, a guide groove and a guide groove hole Used to fix and prevent debris from falling into the body.
Effectively prevent debris from falling into the pile top, prevent the sealing parts from sliding, ensure construction safety, and simplify the core filling workflow.
Smart Images
Figure CN222477425U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of prefabricated pipe pile construction, in particular to a pile head protector which can be reused and is suitable for prefabricated pipe piles with multiple apertures. Background Art
[0002] Concrete prefabricated pipe piles are a deep foundation form that can be prefabricated in factories, has controllable quality, is energy-saving and environmentally friendly, and has high construction efficiency. They have been widely used in engineering. Generally speaking, the pipe piles must be cored before the pile foundation is constructed. However, due to the pile sinking process and a period of time after the pile sinking, especially in power transmission and transformation projects, the prefabricated pipe piles for long-term expansion are often completed in this period to avoid the problem of long-term pile sinking. The pile top will be lower than the ground, which makes it easy for the hollow part of the prefabricated pipe pile to fall into debris such as slag and debris. It needs to be cleaned before core filling, but it is difficult to clean it up, which brings great trouble to the core filling work. In addition, it is difficult for mechanical equipment to find and avoid these piles located below the ground, which is easy to affect the normal operation and operation of the machinery. If the holes on the top of the piles are not temporarily covered, there are also safety risks such as personnel falling. The traditional solution is to use templates or steel plates for sealing, but this kind of solution has the problem of slippage. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the defects in the prior art that the pile top is lower than the ground and debris and other debris are easily dropped in, and the template or steel plate used for sealing is easy to slip, and provide a reusable pile head protector suitable for multi-diameter prefabricated pipe piles.
[0004] The technical solution adopted by the utility model to solve its technical problems is a reusable pile head protector suitable for multi-diameter prefabricated pipe piles, including a plugging piece adapted to the diameter of the prefabricated pipe piles available on the market, the plugging piece is provided with a first screw assembly, a second screw assembly and a rotating sealing plate, and the plugging piece has a guide groove and a guide groove hole; the guide groove and the guide groove hole are both rectangular, and the outer diameter of the guide groove is larger than the outer diameter of the guide groove hole; the first screw assembly includes a screw segment, a non-screw segment and a nut, the screw segment diameter is smaller than the guide groove hole width, the nut diameter is larger than the guide groove hole width, and the nut diameter is smaller than the guide groove width, so that the first screw assembly passes through the guide groove and the guide groove hole and slides in the guide groove, the non-screw segment is inserted into the prefabricated pipe pile and presses against the inner wall of the prefabricated pipe pile; the rotating sealing plate is coaxially fixed with the second screw assembly, and the rotating sealing plate rotates around the second screw assembly to cover the guide groove and the guide groove hole.
[0005] Furthermore, the guide groove and the guide groove hole are provided in a symmetrical pair.
[0006] Furthermore, the top of the screw segment is lower than the top of the blocking member.
[0007] Furthermore, it is characterized in that the blocking piece, the first screw assembly and the second screw assembly are made of carbon steel, stainless steel or copper.
[0008] The utility model has the following beneficial technical effects:
[0009] In the utility model, the blocking piece is provided with a guide groove and a guide groove hole. After the nut on the first screw assembly is loosened, the first screw assembly can move back and forth in the guide groove and the guide groove hole. After the nut on the first screw assembly is tightened, the non-screw section at the lower end of the first screw assembly can be fixed and pressed against the inner wall of the prefabricated pipe pile to prevent the blocking piece from sliding.
[0010] In the utility model, the diameter of the screw section of the first screw assembly is slightly smaller than the width of the guide groove hole, which can ensure that it can move freely in the guide groove hole; the diameter of the nut is slightly larger than the width of the guide groove hole and slightly smaller than the width of the guide groove, and the diameter of the non-screw section of the screw assembly is slightly larger than the width of the guide groove hole, which can ensure that the screw assembly will not fall out of the blocking piece.
[0011] In the utility model, the second screw assembly can fix the rotatable sealing plate. When the position of the first screw assembly needs to be adjusted, the sealing plate is rotated away from the guide groove position, and then rotated back after the first screw assembly is fixed to prevent debris from falling into the prefabricated pipe pile from the guide groove hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a top view of an embodiment of a pile head protector of the utility model that can be reused and is applicable to multi-diameter prefabricated pipe piles in a covered state;
[0013] Figure 2 It is a cross-sectional view of an embodiment of a pile head protector of the utility model that can be reused and is applicable to multi-diameter prefabricated pipe piles;
[0014] Figure 3 The utility model is a top view of an embodiment of a pile head protector that is reusable and applicable to multi-diameter prefabricated pipe piles in an uncovered state.
[0015] Description of reference numerals:
[0016] 1. Sealing piece; 2. Guide groove; 3. Guide groove hole; 4. First screw assembly; 5. Second screw assembly; 6. Rotating sealing plate; 7. Prefabricated pipe pile. DETAILED DESCRIPTION
[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0018] Reference Figures 1 to 3This embodiment includes a plugging member 1, which has a guide groove 2 and a guide groove hole 3. The plugging member 1 is installed with a first screw assembly 4, a second screw assembly 5 and a rotating sealing strip plate 6. The diameter of the plugging member 1 is not less than the maximum outer diameter of the prefabricated pipe piles available on the market, and multiple sizes are provided to ensure that the plugging member 1 can completely cover the top of the prefabricated pipe pile to prevent slag from falling.
[0019] A pair of guide grooves 2 and guide groove holes 3 are symmetrically arranged on the sealing member 1. The plane size of the guide groove 2 is slightly larger than the guide groove hole 3 to meet the nut installation requirements of the first screw assembly 4. Both are rectangular in shape. The first screw assembly 4 passes through the guide groove 2 and the guide groove hole 3 and can move back and forth in the guide groove 2 to adapt to prefabricated pipe piles of different pile diameters.
[0020] The first screw assembly 4 is composed of a screw section, a non-screw section and a nut. The diameter of the screw section is slightly smaller than the width of the guide groove hole 3, the diameter of the nut is slightly larger than the width of the guide groove hole 3, and slightly smaller than the width of the guide groove 2. The top of the screw section is slightly lower than the top of the plugging member 1. The non-screw section is inserted into the prefabricated pipe pile 7, and the diameter of the non-screw section is slightly larger than the width of the guide groove hole 3, which can ensure that the first screw assembly 4 can move back and forth in the guide groove 2 and the guide groove hole 3 until the non-screw section at its lower end presses against the inner wall of the prefabricated pipe pile 7, and then tightens the nut to fix it. The plugging member 1 can be made of carbon steel, stainless steel or copper, etc., or can be cast by reinforced concrete, and the grooves and holes are covered with thin steel plates. The first screw assembly 4 can be made of other materials such as carbon steel, stainless steel or copper.
[0021] In this embodiment, the sealing part is cast by reinforced concrete C40, and its grooves and holes are covered with thin stainless steel plates with a thickness of 5 mm. The diameter of the sealing part is 900 mm and the total thickness is 80 mm. The guide groove and guide groove hole are both about 40 mm deep, and the guide groove holes are 290 mm long. The two guide groove holes are symmetrical with a net distance of 160 mm. The guide groove hole width is 10 mm and the guide groove width is 15 mm. The outer diameter of the nut of the first screw assembly is 13 mm, the outer diameter of the screw section is 8 mm, and the length is 75 mm. The diameter of the non-screw section is 13 mm and the length is 100 mm. The material of the first screw assembly is stainless steel. The sealing part of this embodiment can adapt to prefabricated pipe piles with an outer diameter of 300~1000 mm and a wall thickness of 70~130 mm.
[0022] The second screw assembly 5 fixes the rotating sealing strip plate 6. When adjusting the position of the first screw assembly 4, the rotating sealing strip plate 6 is unscrewed from the guide groove 2 position, and then screwed back after the adjustment is completed, and the nut of the second screw assembly 5 is tightened to prevent debris from falling into the prefabricated pipe pile from the guide groove hole 3. The second screw assembly 5 and the rotating sealing strip plate 6 can be made of carbon steel, stainless steel, copper or other materials.
[0023] In this embodiment, the second screw assembly and the rotatable sealing plate are both made of stainless steel, the screw diameter is 10 mm, the length is 100 mm, the outer diameter of the nut is 13 mm, the sealing plate is 800 mm long, 20 mm wide and 5 mm thick.
[0024] A method for using a reusable pile head protector suitable for multi-diameter prefabricated pipe piles is as follows: after sinking the piles and before covering the soil, loosen the nut of the second screw assembly 5 of the sealing member 1, unscrew the rotating sealing plate 6, and then loosen the nut of the first screw assembly 4, move the first screw assembly 4 in the guide groove 2 and the guide groove hole 3, so that the outer walls of the non-screw sections of the two first screw assemblies 4 are close to the inner wall of the prefabricated pipe pile 7, tighten the nut of the first screw assembly 4, tighten and fix the first screw assembly 4, and then rotate the rotating sealing plate 6 back to completely cover the guide groove 2, tighten the nut of the second screw assembly 5, fix the rotatable sealing plate 6, and then cover the soil.
[0025] The above are all preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereto. Among them, the same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Therefore: All equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A reusable pile head protector suitable for multi-diameter prefabricated pipe piles, characterized in that: The invention comprises a plugging piece (1) adapted to the diameter of a prefabricated pipe pile (7) available on the market, wherein the plugging piece (1) is provided with a first screw assembly (4), a second screw assembly (5) and a rotating sealing strip plate (6), and the plugging piece (1) has a guide groove (2) and a guide groove hole (3); the guide groove (2) and the guide groove hole (3) are both rectangular, and the outer diameter of the guide groove (2) is greater than the outer diameter of the guide groove hole (3); the first screw assembly (4) comprises a screw segment, a non-screw segment and a nut, and the diameter of the screw segment is smaller than the diameter of the guide groove hole (3); The width of the hole (3) is larger than the width of the guide groove hole (3), and the diameter of the nut is smaller than the width of the guide groove (2), so that the first screw assembly (4) can pass through the guide groove (2) and the guide groove hole (3) and slide in the guide groove (2), and the non-screw section can be inserted into the prefabricated pipe pile and pressed against the inner wall of the prefabricated pipe pile; the rotating sealing plate (6) is coaxially fixed with the second screw assembly (5), and the rotating sealing plate (6) rotates around the second screw assembly (5) to cover the guide groove (2) and the guide groove hole (3).
2. The reusable pile head protector suitable for multi-diameter prefabricated pipe piles according to claim 1, characterized in that: The guide groove (2) and the guide groove hole (3) are provided in a symmetrical pair.
3. The reusable pile head protector suitable for multi-diameter prefabricated pipe piles according to claim 1, characterized in that: The top of the screw segment is lower than the top of the sealing member (1).
4. The reusable pile head protector suitable for multi-diameter prefabricated pipe piles according to claim 1, characterized in that: The blocking member (1), the first screw assembly (4) and the second screw assembly (5) are made of carbon steel, stainless steel or copper.