Weathering-resistant steel pipe screw pile

Abstract

The utility model relates to a weathering steel pipe, in particular to a weathering steel pipe screw pile, which comprises a drilling component and a pile seat component, the drilling component comprises a steel pipe body, a screw blade and a drill bit, the lower end of the steel pipe body is fixedly connected with a mounting column, the drill bit is movably sleeved on the outer wall of the mounting column, and one side of the drill bit is in threaded connection with a fixing bolt. The pile seat assembly comprises a flange plate and an adjusting seat fixedly connected to the lower end of the flange plate, a mounting groove is formed in the middle of the adjusting seat, a preassembled pipe is movably sleeved with the mounting groove, limiting grooves are formed in the outer walls of the two sides of the preassembled pipe, and reinforcing positioning blocks are fixedly connected to the inner walls of the two sides of the mounting groove. The height of the pile seat can be conveniently adjusted under the mutual cooperation of the adjusting seat, the reinforcing positioning block, the positioning rod, the preassembling pipe, the limiting groove and the positioning hole structure; and the pipe body which easily goes wrong can be separated from the drill bit, and when the steel pipe body or the drill bit is damaged, overall replacement is not needed, so that the cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a weathering steel pipe, especially a weathering steel pipe spiral pile. BACKGROUND

[0002] The steel pipe spiral pile is a pile foundation form used in foundation engineering, and is commonly used in foundation treatment, complex geological conditions or scenes requiring rapid construction. It is composed of a steel pipe pile body and a series of spiral blades, and its working principle is similar to that of a screw. By rotating the pile body, the pile body is pushed into the soil or rock layer, thereby achieving the purpose of bearing load.

[0003] During construction, the height difference of the spiral pile is usually controlled within a certain range to ensure the stability of the structure and the construction quality. In the prior art, the pile base is generally fixed on the steel pipe body by welding or bolt connection. When the height needs to be adjusted, the depth of the pipe body into the ground needs to be changed, which is inconvenient to adjust. Moreover, when the spiral pile is damaged, the entire spiral pile needs to be replaced, which is costly. SUMMARY

[0004] The utility model aims to provide a weathering steel pipe spiral pile, which can adjust the height of the pile base without changing the depth of the pipe body, and can separate the steel pipe body, which is prone to problems, from the drill bit. When the steel pipe body or the drill bit is damaged, the entire spiral pile does not need to be replaced, thereby saving costs.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a weathering steel pipe spiral pile, which comprises a drilling assembly and a pile base assembly. The drilling assembly comprises a steel pipe body, spiral blades and a drill bit. The lower end of the steel pipe body is fixedly connected with a mounting column. The drill bit is movably sleeved on the outer wall of the mounting column. One side of the drill bit is threadedly connected with a fixing bolt. The pile base assembly comprises a flange plate and an adjusting seat fixedly connected to the lower end of the flange plate. A mounting groove is formed in the middle part of the adjusting seat. A pre-installed pipe is movably sleeved in the mounting groove. Limiting grooves are formed in the outer walls of the two sides of the pre-installed pipe. Reinforcing positioning blocks are fixedly connected to the inner walls of the two sides of the mounting groove. The two reinforcing positioning blocks are movably sleeved in the two limiting grooves. Positioning rods are movably sleeved in the two reinforcing positioning blocks. Positioning holes are formed in the two limiting grooves. The positioning rods pass through the positioning holes.

[0006] Optionally, a connecting cavity is formed in the upper end of the steel pipe body. The upper end of the connecting cavity is movably sleeved in the pre-installed pipe. An installation bolt is threadedly connected between the connecting cavity and the pre-installed pipe. The fixing bolt passes through the mounting column and is threadedly screwed into the drill bit.

[0007] Optionally, spring grooves are formed in the two sides of the adjusting seat, and sliding plates are slidably connected in the two spring grooves.

[0008] Optionally, return springs are fixedly connected between the two sliding plates and the two spring grooves, and the two return springs are movably sleeved on the outer ends of the two positioning rods.

[0009] Optionally, the plurality of positioning holes are arranged in a line and evenly distributed in the two limiting grooves.

[0010] Optionally, the steel pipe body, the spiral blade and the drill bit are made of weathering steel, and the spiral blade is fixedly sleeved on the outer wall of the steel pipe body.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The adjusting seat, the reinforcing positioning block, the positioning rod, the pre-installed pipe, the limiting groove and the positioning hole are arranged, the reinforcing positioning block is sleeved in the grooves at different heights in the limiting groove, the positioning rod penetrates the reinforcing positioning block and the positioning hole and is fixed, the extension height of the pre-installed pipe relative to the adjusting seat can be adjusted, the height of the pile seat is adjusted without changing the depth of the steel pipe, the height meets the requirement, and the adjusting process does not need to disassemble and assemble bolts and other components, so that the adjusting is convenient.

[0013] 2. The mounting column and the fixed bolt structure are arranged, the drill bit is sleeved on the outer end of the mounting column and is fixed by the fixed bolt, the steel pipe and the drill bit are in a detachable state, the steel pipe body or the drill bit can be replaced when damaged, the whole does not need to be replaced, and therefore the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is a front view of the utility model;

[0016] Figure 2 It is a sectional view of the adjusting seat of the utility model;

[0017] Figure 3 It is a sectional view of the adjusting seat of the utility model;

[0018] Figure 4 It is sectional view structure schematic diagram of steel pipe and drill bit of the utility model.

[0019] In the figure: 100, drilling assembly; 101, steel pipe body; 102, spiral blade; 103, drill bit; 104, connecting cavity; 105, mounting column; 106, fixing bolt; 107, mounting bolt; 200, pile base assembly; 201, flange plate; 202, adjusting seat; 203, mounting groove; 204, spring groove; 205, sliding plate; 206, return spring; 207, positioning rod; 208, reinforcing positioning block; 209, preloading pipe; 210, limiting groove; 211, positioning hole. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0023] In addition, the terms "first", "second" are only used for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] Reference Figures 1-4The utility model provides a kind of weathering steel pipe spiral pile provided by the utility model embodiment, and the weathering steel pipe spiral pile will be described as follows.A kind of weathering steel pipe spiral pile, including drilling assembly 100 and pile seat component 200, drilling assembly 100 includes steel pipe body 101, spiral blade 102 and drill bit 103, the lower end of steel pipe body 101 is fixedly connected with mounting column 105, drill bit 103 is movably sleeved on the outer wall of mounting column 105, one side of drill bit 103 is threadedly connected with fixed bolt 106, pile seat component 200 includes flange plate 201 and the adjusting seat 202 fixedly connected in the lower end of flange plate 201, the middle part of adjusting seat 202 is provided with installation groove 203, preloading pipe 209 is movably sleeved in installation groove 203, limit slot 210 is formed on the outer wall of both sides of preloading pipe 209, reinforcing positioning block 208 is fixedly connected on the inner wall of both sides of installation groove 203, two reinforcing positioning blocks 208 are movably sleeved in two limit slots 210 respectively, and positioning rod 207 is movably sleeved in two reinforcing positioning blocks 208, positioning hole 211 is formed in two limit slots 210, and positioning rod 207 is arranged through positioning hole 211.

[0025] Compared with the prior art, the weathering steel pipe spiral pile provided by the utility model can adjust the protruding height of the preloading pipe 209 relative to the adjusting seat 202 by sleeving the reinforcing positioning block 208 in the grooves of different heights in the limit slot 210 and making the positioning rod 207 pass through the positioning reinforcing block and the positioning hole 211 to be fixed, so that the height of the pile seat can be adjusted without changing the depth of the steel pipe, which meets the requirements and is convenient to adjust without disassembling the bolts and other components during the adjustment process.

[0026] In another embodiment of the utility model, please refer to Figure 3 And Figure 4 The upper end of steel pipe body 101 is provided with connecting cavity 104, the upper end of connecting cavity 104 is movably sleeved in preloading pipe 209, and mounting bolt 107 is threadedly connected between connecting cavity 104 and preloading pipe 209, fixed bolt 106 passes through mounting column 105, and the other end of fixed bolt 106 is threadedly screwed in drill bit 103, the thickness of preloading pipe 209 can be set as the difference between the first smaller outer diameter of the steel pipe and the second larger inner diameter of the steel pipe, so that the outer end of preloading pipe 209 can be sleeved with the steel pipe with larger inner diameter.

[0027] In another embodiment of the utility model, please refer to Figure 2Both sides of the adjusting seat 202 are internally provided with spring grooves 204, both of which are slidably connected with sliding plates 205, both of which are fixedly sleeved on the outer wall of the positioning rod 207, both of which are fixedly connected with return springs 206, both of which are movably sleeved on the outer end of the two positioning rods 207, and the return spring 206 can exert force on the sliding plate 205, so that the positioning rod 207 is sleeved with the positioning hole 211 and is not easily slid out.

[0028] In another embodiment of the utility model, please refer to Figure 2 And Figure 3 The number of positioning holes 211 is multiple, and the multiple positioning holes 211 are evenly distributed in the two limiting grooves 210 in a straight line, and the positioning rod 207 is sleeved with the positioning hole 211 of different heights to fix the reinforcing positioning block 208, so that the extension length of the preinstalled pipe 209 relative to the mounting groove 203 can be fixed conveniently, thereby realizing the height adjustment of the pile seat.

[0029] In another embodiment of the utility model, please refer to Figure 1 The steel pipe body 101, the spiral blade 102 and the drill bit 103 are all made of weathering steel, the spiral blade 102 is fixedly sleeved on the outer wall of the steel pipe body 101, the weathering steel can improve the corrosion resistance of the screw pile, enhance the stability during use and prolong the service life.

[0030] Working principle: when installing the utility model, the drill bit 103 is sleeved on the outside of the mounting column 105, the threaded hole for sleeving the fixing bolt 106 is aligned, then the fixing bolt 106 is screwed in to fix and install the drill bit 103 at the lower end of the steel pipe body 101, the steel pipe body 101 is fixedly sleeved in the preinstalled pipe 209 by penetrating the mounting bolt 107 through the preinstalled pipe 209 and the steel pipe body 101, then the upper end of the limiting groove 210 opened on the side of the preinstalled pipe 209 is aligned with the reinforcing positioning block 208 and pushed into the appropriate height, the preinstalled pipe 209 is rotated, so that the reinforcing positioning block 208 is sleeved in the groove on the side of the limiting groove 210 and fixed, and the preinstalled pipe 209 is fixed in the mounting groove 203 by penetrating the positioning rod 207 through the reinforcing positioning block 208 and the positioning hole 211, thereby completing the installation.

[0031] When the height of the pile seat needs to be adjusted, the positioning rod 207 is pulled to be separated from the positioning hole 211, at this time, the preinstalled pipe 209 can be rotated, so that the reinforcing positioning block 208 is separated from the groove on the side of the limiting groove 210, and then the preinstalled pipe 209 can be adjusted in extension and retraction relative to the adjusting seat 202, thereby realizing the height adjustment of the pile seat relative to the steel pipe body 101, which is convenient to adjust.

[0032] When the steel pipe body 101 or the drill bit 103 is damaged, the steel pipe body 101 and the drill bit 103 can be separated and replaced by disassembling the fixing bolt 106.

[0033] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A weathering steel pipe pile comprising a drilling assembly (100) and a pile base assembly (200), characterized in that: The drilling assembly (100) comprises a steel pipe body (101), a spiral blade (102) and a drill bit (103), the lower end of the steel pipe body (101) is fixedly connected with a mounting column (105), the drill bit (103) is movably sleeved on the outer wall of the mounting column (105), one side of the drill bit (103) is threadedly connected with a fixing bolt (106), the pile seat assembly (200) comprises a flange plate (201) and an adjusting seat (202) fixedly connected at the lower end of the flange plate (201), the middle part of the adjusting seat (202) is provided with a mounting groove (203), the mounting groove (203) movably sleeves a preloading pipe (209), the outer walls of the two sides of the preloading pipe (209) are provided with limiting grooves (210), the inner walls of the two sides of the mounting groove (203) are fixedly connected with reinforcing positioning blocks (208), the two reinforcing positioning blocks (208) are movably sleeved in the two limiting grooves (210) respectively, and the reinforcing positioning blocks (208) are movably sleeved with positioning rods (207) respectively, the limiting grooves (210) are provided with positioning holes (211), and the positioning rods (207) pass through the positioning holes (211).

2. A weathering steel helical pile according to claim 1, wherein: The upper end of the steel pipe body (101) is provided with a connecting cavity (104), the upper end of the connecting cavity (104) is movably sleeved in the preloading pipe (209), and the connecting cavity (104) and the preloading pipe (209) are threadedly connected with a mounting bolt (107), the fixing bolt (106) passes through the mounting column (105) and is threadedly connected with the drill bit (103).

3. A weathering steel helical pile according to claim 1, wherein: The inner sides of the two sides of the adjusting seat (202) are provided with spring grooves (204), the spring grooves (204) are movably connected with sliding plates (205), and the sliding plates (205) are fixedly sleeved on the outer walls of the positioning rods (207).

4. A weathering steel helical pile according to claim 3, wherein: The sliding plates (205) and the spring grooves (204) are fixedly connected with return springs (206), and the return springs (206) are movably sleeved on the outer ends of the positioning rods (207).

5. A weathering steel helical pile according to claim 1, wherein: The positioning holes (211) are provided in plurality, and the positioning holes (211) are arranged in a straight line and are evenly distributed in the limiting grooves (210).

6. A weathering steel helical pile according to claim 1, wherein: The steel pipe body (101), the spiral blade (102) and the drill bit (103) are made of weathering steel, and the spiral blade (102) is fixedly sleeved on the outer wall of the steel pipe body (101).

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