A series of bamboo jointed rotating leaf micro steel pipe pile

Abstract

This utility model discloses a bamboo-joint spiral-blade miniature steel pipe pile that can be assembled in series, relating to the field of pipe pile construction. It includes a pile cap, a unit pile connected to the bottom of the pile cap, and a pile head connected to the bottom of the unit pile. A slot is provided on the side of the second spiral blade near the first spiral blade, and the slots are symmetrically distributed vertically about the second spiral blade. Insert blocks are fixedly connected to the side of the first spiral blade near the second spiral blade, and the insert blocks are also symmetrically distributed vertically about the first spiral blade. This bamboo-joint spiral-blade miniature steel pipe pile, which can be assembled in series, allows for the connection of unit piles together to achieve the series connection of steel pipe piles. Connecting the pile cap and pile head further assembles and fixes the steel pipe pile, reducing environmental space limitations on the steel pipe pile. Fixing the new first and second spiral blades to the surface of the unit pile reduces material waste and improves piling efficiency. The hidden head and hidden slot are at the same horizontal position, ensuring the stability of the steel pipe pile during piling.

Description

Technical Field

[0001] This utility model relates to the field of pipe pile construction technology, specifically a bamboo-joint spiral blade miniature steel pipe pile that can be assembled in series. Background Technology

[0002] Pipe pile construction is mainly used for foundation reinforcement and foundation support. Pipe piles (usually steel pipes or concrete pipes) are driven into the ground to provide necessary support and stability. Due to the space constraints of large pipe piles, bamboo-joint spiral leaf micro steel pipe piles have emerged, which have the characteristics of certain segments. This design can improve the bearing capacity and stability of the pile. Pipe piles need to be assembled in series according to actual needs, which does not easily cause material waste, reduces costs, and is less affected by space due to their small size.

[0003] Currently, steel pipe piles still have some shortcomings, such as poor stability when connecting two bamboo-joint piles: To overcome the instability of pile connections, the existing Chinese patent (publication number: CN214301717U) discloses a bamboo-joint pile connection structure, which reduces the phenomenon that the upper end of the guide plate is deflected by the bamboo joint pile when connecting bamboo joint piles, or even damages the connection position of the mounting block, and improves the stability of guiding the bamboo joint piles. However, the steel pipe piles currently in use still have certain shortcomings. The above document achieves a stable connection by guiding the two pipe piles, but the number of threaded fixing methods at the connection is relatively small. Although the efficiency is high, stability is more important for pile driving. Secondly, steel pipe piles are divided into those with helical blades and those without helical blades. The helical blade is usually integrated with the pipe pile, and the helical blade is a part that is easily worn. Replacing the whole part will easily lead to waste of materials. Therefore, it is necessary to improve the existing structure. Utility Model Content

[0004] The purpose of this utility model is to provide a bamboo-joint spiral blade micro steel pipe pile that can be assembled in series, in order to solve the problems mentioned in the background art, such as the steel pipe pile being easily affected by the size of the space, the instability that may occur when connected in series, and the inconvenience of replacing the spiral blade of the steel pipe pile, which affects the pile driving efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bamboo-joint spiral leaf micro steel pipe pile that can be assembled in series, including a pile cap, a unit pile connected to the bottom of the pile cap, and a pile head connected to the bottom of the unit pile; The unit pile is rotatably connected to both ends and the top of the pile head with bolts. There are six sets of bolts connected around the center of the unit pile. The unit pile has six sets of through holes at both ends. The bolts are rotated through the through holes. Nuts are threaded onto the surface of the bolts. The unit pile is equipped with an assembly mechanism that can be assembled in series. A first semi-rotary blade is connected to one side of the surface of the unit pile, and a replacement mechanism to reduce material loss is provided on the surface of the unit pile.

[0006] Furthermore, the assembly mechanism includes a first fixing block, which is fixedly connected to the inside of one end of the unit pile. Both the first fixing block and the top of the pile head are fixed with threaded blocks. A second fixing block is fixedly connected to the inside of the other end of the unit pile. The second fixing block and the threaded blocks are threadedly connected. The threaded blocks, bolts, and pile caps all constitute a threaded connection.

[0007] Furthermore, the replacement mechanism includes a second half-rotary blade, which is connected to the side of the first half-rotary blade. Both the second half-rotary blade and the first half-rotary blade have rotation grooves on their inner sides, and the first half-rotary blade and the second half-rotary blade are larger than the connection point of the unit pile.

[0008] Furthermore, a slot is provided on the side of the second half-rotary blade near the first half-rotary blade. The slots are symmetrically distributed about the second half-rotary blade. A plug is fixedly connected to the side of the first half-rotary blade near the second half-rotary blade. The plug is symmetrically distributed about the first half-rotary blade. The plug and the slot are slidably connected.

[0009] Furthermore, the insert, the outer ring, the slot and the second half-rotor blade are slidably connected by a through rod, the rotating groove is connected to the outer ring, and the outer ring is fixed at the center of the unit pile surface.

[0010] Furthermore, sliding grooves are provided on both sides of the through rod, and springs are connected inside the sliding grooves. A locking block is connected to the end of the spring. The locking block and the sliding groove form a telescopic structure through the spring. The insert block is provided with a locking groove inside, and the locking groove and the locking block are locked together.

[0011] Furthermore, the top of the second semi-rotary blade is provided with a concealed mechanism to prevent the anti-insertion block from falling off. The concealed mechanism includes a concealed head, which is fixedly connected to the top of the through rod. The top of the second semi-rotary blade is provided with a concealed groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This bamboo-joint spiral blade micro steel pipe pile, which can be assembled in series, allows for the connection of unit piles together. Connecting the pile cap and pile head further secures the steel pipe pile, reducing environmental constraints. Fixing the new first and second semi-spirals to the surface of the unit pile reduces material waste and improves driving efficiency. The hidden head and hidden groove are at the same horizontal level, ensuring the stability of the steel pipe pile during driving. Furthermore, this pipe pile exhibits minimal soil displacement during construction, causing only slight impact on the surrounding soil. Disturbance.

[0013] 2. Bolts are provided, and multiple sets of bolts can achieve a stable connection during the assembly of steel pipe piles, preventing loosening during pile driving and improving the reliability of steel pipe piles; 3. A threaded block is provided, and the threaded connection between the threaded block and the second fixed block can realize the series connection between the micro steel pipe piles, which further improves the stability of the steel pipe piles during assembly. 4. A through rod is provided to prevent the first and second semi-rotary blades from rotating on the surface of the unit pile, thus enabling the assembly, disassembly, and use of the spiral blades of the steel pipe pile and improving ease of use; 5. It is equipped with a hidden slot, through which the hidden head can be inserted into the interior, so that the hidden head will not protrude from the top of the second half-rotor blade, thus avoiding interference from external forces and improving the stability of the through rod. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model; Figure 3 This is an enlarged three-dimensional structural diagram of the unit pile of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the unit pile of this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the first half-rotor blade of this utility model. Figure 6 This is a cross-sectional perspective view of the insert block of this utility model. Figure 7 This is a top-view magnified three-dimensional structural diagram of the first semi-rotary blade of this utility model.

[0015] In the diagram: 1. Pile cap; 2. Unit pile; 3. Pile head; 201. Bolt; 202. Nut; 203. First fixing block; 204. Threaded block; 205. Second fixing block; 206. First half-rotor blade; 207. Second half-rotor blade; 208. Rotating groove; 209. Slot; 210. Insert block; 211. Through rod; 212. Outer ring; 213. Sliding groove; 214. Spring; 215. Engaging block; 216. Engaging groove; 217. Hidden head; 218. Hidden groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] like Figures 1-4 The present invention provides the following technical solution to address the problem that steel pipe piles are easily affected by space size and may be unstable when connected in series: An assembly mechanism is disclosed. It includes a pile cap 1, a unit pile 2 connected to the bottom of the pile cap 1, and a pile head 3 connected to the bottom of the unit pile 2; Bolts 201 are rotatably connected to both ends of unit pile 2 and the top of pile head 3. Six sets of bolts 201 are connected around the center of unit pile 2. Six sets of through holes are opened at both ends of unit pile 2, and bolts 201 are inserted and rotated inside the through holes. Nuts 202 are threaded onto the surface of bolts 201. A series-assembled assembly mechanism is provided inside unit pile 2. A first semi-rotary blade 206 is connected to one side of the surface of unit pile 2. A replacement mechanism to reduce material loss is provided on the surface of unit pile 2. The assembly mechanism includes a first fixing block 203, which is fixedly connected to the inside of one end of unit pile 2. The first fixing block 203 and the top of pile head 3 are both fixed with bolts 201. The threaded block 204 and the second fixing block 205 are fixedly connected to the other end of the unit pile 2. The second fixing block 205 and the threaded block 204 are threadedly connected. The threaded block 204, the bolt 201 and the pile cap 1 are all threadedly connected. When using the steel pipe pile, the pile cap 1, the unit pile 2 and the pile head 3 are assembled and connected, and then the pile is driven downward. Since the pile driving environment may not be wide, steel pipe piles that can be assembled and connected are required. During assembly, multiple unit piles 2 are connected in series. One group of unit piles 2 is moved to the bottom of another group of unit piles 2. When the bottom unit pile 2 moves, it can drive the threaded block 204 to be inserted into the end of the second fixing block 205 and rotate. When unit pile 2 rotates, it can drive threaded block 204 to rotate. When threaded block 204 rotates, it can drive threaded block 204 to slide against second fixed block 205. When threaded block 204 slides into second fixed block 205, the two sets of unit piles 2 will be fixedly connected. Unit piles 2 are of two types: one with blades and one without blades. Installers can combine them arbitrarily according to construction needs. At this time, the through holes at the ends of the two sets of unit piles 2 will overlap. Moving bolt 201 passes through the through holes of the two sets of unit piles 2, and then moving nut 202 to the end of bolt 201 for rotation. When nut 202 rotates, it can engage with bolt 201. 01. When the nut 202 slides to the side of a set of unit piles 2, it can be squeezed. In the same way, the through holes in other positions of unit piles 2 are also squeezed, which can further improve the stability when the two sets of unit piles 2 are connected. In this way, the other sections of unit piles 2 are assembled together to realize the series connection of steel pipe piles. After the assembly is completed, the pile cap 1 and the pile head 3 are moved to the top and bottom of the unit pile 2 respectively. The pile cap 1 and the pile head 3 can be assembled and fixed by the threaded block 204 and the bolt 201 through the threaded sliding, which improves the stability of the steel pipe pile assembly and reduces the restriction of the environmental space on the steel pipe pile. Example

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6The present invention provides the following technical solution to address the problem that the inconvenience of replacing the spiral blades of steel pipe piles affects pile driving efficiency: A replacement mechanism is disclosed. The replacement mechanism includes a second half-rotary blade 207, which is connected to the side of the first half-rotary blade 206. Rotation grooves 208 are provided on the inner sides of both the second half-rotary blade 207 and the first half-rotary blade 206, and the connection between the first half-rotary blade 206 and the second half-rotary blade 207 is larger than the connection point of the unit pile 2. A slot 209 is provided on the side of the second half-rotary blade 207 near the first half-rotary blade 206, and the slots 209 are symmetrically distributed vertically about the second half-rotary blade 207. A plug block 210 is fixedly connected to the side of the first half-rotary blade 206 near the second half-rotary blade 207, and the plug block 210 is symmetrically distributed vertically about the first half-rotary blade 206. The plug block 210 and the slot 209 are slidably connected. The plug block 210, the outer ring 212, the slot 209, and the second half-rotary blade 206 are connected. 7. A through rod 211 slides through the interior. An outer ring 212 is connected inside the rotating groove 208. The outer ring 212 is fixed at the center of the surface of the unit pile 2. Sliding grooves 213 are opened on both sides of the through rod 211. A spring 214 is connected inside the sliding groove 213. A locking block 215 is connected to the end of the spring 214. The locking block 215 forms a telescopic structure with the sliding groove 213 through the spring 214. A locking groove 216 is opened inside the insert block 210. The locking groove 216 and the locking block 215 are locked together. When the steel pipe pile is driven, the first half-rotor 206 and the second half-rotor 207 can move spirally through the ground. Due to different soil geology, the soil rotation efficiency of the first half-rotor 206 and the second half-rotor 207 is also different. The first and second half-rotor blades 206 and 207 will experience significant wear due to their spiral movement on the ground. To improve piling efficiency and reduce dust usage costs, the first and second half-rotor blades 206 and 207 need to be replaced when necessary. During replacement, a tool is used to rotate the concealed head 217. When the concealed head 217 rotates, the through rod 211 can rotate through the second half-rotor blade 207, slot 209, insert block 210, and outer ring 212. The rotation of the through rod 211 drives the locking block 215 to rotate. When the locking block 215 rotates, its inclined surface can press against the inner wall of the locking groove 216. When the locking block 215 is pressed, it can slide through the locking groove 216 and sliding groove 213. The sliding of the locking block 215 can press against the spring 214. When the 5th slides into the sliding groove 213, the through rod 211 is pulled upward. When the through rod 211 is pulled upward, it can slide through the second half-rotary blade 207, the slot 209, the insert block 210 and the outer ring 212. When the through rod 211 slides out of the second half-rotary blade 207, the first half-rotary blade 206 and the second half-rotary blade 207 are pulled to both sides respectively. When the first half-rotary blade 206 and the second half-rotary blade 207 are pulled, the rotating groove 208 can be moved. When the rotating groove 208 moves, it can slide out of the side of the outer ring 212, thereby realizing the disassembly and separation of the first half-rotary blade 206 and the second half-rotary blade 207. After disassembly, the new first half-rotary blade 206 and the second half-rotary blade 207 can be fixed on the surface of the unit pile 2, reducing material consumption and improving pile driving efficiency. Example

[0019] like Figure 5 and Figure 7 The present invention provides the following technical solution to address the problem of insufficient stability of the second half-rotor blade 207 and its susceptibility to external interference in steel pipe piles: Based on Embodiment 2, a hidden mechanism is disclosed. The second semi-rotary blade 207 has a concealed mechanism at its top to prevent the anti-insertion block 210 from falling off. The concealed mechanism includes a concealed head 217, which is fixedly connected to the top of the through rod 211. The top of the second semi-rotary blade 207 has a concealed groove 218. Before the pile driver is used, the first semi-rotary blade 206 and the second semi-rotary blade 207 are installed on the surface of the unit pile 2, forming a complete spiral blade. The complete spiral blade needs to be positioned and connected to the first semi-rotary blade 206 and the second semi-rotary blade 207 through the through rod 211. When the through rod 211 is positioned, it can drive the concealed head 217 to move. The hidden head 217 can be inserted into the hidden groove 218 through the through rod 211. After the hidden head 217 is inserted into the hidden groove 218, the through rod 211 can be inserted into the designated position to fix and merge the first half-rotor 206 and the second half-rotor 207. At this time, the hidden head 217 and the hidden groove 218 are at the same horizontal position and will not be subjected to other forces on the side. Therefore, it can remain stable when the steel pipe pile is driven and will not cause the first half-rotor 206 and the second half-rotor 207 to separate due to slipping soil or other objects, thus improving the stability of the steel pipe pile.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bamboo-joint spiral-blade miniature steel pipe pile that can be assembled in series, comprising a pile cap (1), wherein a unit pile (2) is connected to the bottom of the pile cap (1), and a pile head (3) is connected to the bottom of the unit pile (2), characterized in that... ； Bolts (201) are rotatably connected to both ends of the unit pile (2) and the top of the pile head (3). There are six sets of bolts (201) around the center of the unit pile (2). Six sets of through holes are opened at both ends of the unit pile (2). The bolts (201) are rotated through the through holes. Nuts (202) are threaded on the surface of the bolts (201). An assembly mechanism that can be assembled in series is provided inside the unit pile (2). The first semi-rotary blade (206) is connected to one side of the surface of the unit pile (2), and a replacement mechanism to reduce material loss is provided on the surface of the unit pile (2).

2. The bamboo-joint spiral micro steel pipe pile that can be assembled in series according to claim 1, characterized in that: The assembly mechanism includes a first fixing block (203), which is fixedly connected to the inside of one end of the unit pile (2). Both the first fixing block (203) and the top of the pile head (3) are fixed with threaded blocks (204). The other end of the unit pile (2) is fixedly connected with a second fixing block (205). The second fixing block (205) and the threaded block (204) are threadedly connected. The threaded block (204), the bolt (201), and the pile cap (1) are all threadedly connected.

3. The bamboo-joint spiral miniature steel pipe pile that can be assembled in series according to claim 1, characterized in that: The replacement mechanism includes a second half-rotary blade (207), which is connected to the side of the first half-rotary blade (206). Rotation grooves (208) are provided on the inner sides of both the second half-rotary blade (207) and the first half-rotary blade (206), and the first half-rotary blade (206) and the second half-rotary blade (207) are larger than the connection point of the unit pile (2).

4. A bamboo-joint spiral micro steel pipe pile that can be assembled in series according to claim 3, characterized in that: The second half-rotary blade (207) has a slot (209) on the side near the first half-rotary blade (206). The slot (209) is symmetrically distributed about the second half-rotary blade (207). The first half-rotary blade (206) is fixedly connected to a plug (210) on the side near the second half-rotary blade (207). The plug (210) is symmetrically distributed about the first half-rotary blade (206). The plug (210) and the slot (209) are slidably connected.

5. A bamboo-joint spiral micro steel pipe pile that can be assembled in series according to claim 4, characterized in that: The insert (210), the outer ring (212), the slot (209) and the second half-rotor (207) are connected by a through rod (211), and the outer ring (212) is connected inside the rotating groove (208). The outer ring (212) is fixed at the center of the surface of the unit pile (2).

6. A bamboo-joint spiral micro steel pipe pile that can be assembled in series according to claim 5, characterized in that: The through rod (211) has sliding grooves (213) on both sides. A spring (214) is connected inside the sliding groove (213). A locking block (215) is connected to the end of the spring (214). The locking block (215) forms a telescopic structure with the sliding groove (213) through the spring (214). The insert (210) has a locking groove (216) inside. The locking groove (216) and the locking block (215) are locked together.

7. A bamboo-joint spiral micro steel pipe pile that can be assembled in series according to claim 5, characterized in that: The second half-rotary blade (207) is provided with a hiding mechanism for the anti-insertion block (210) to fall off. The hiding mechanism includes a hiding head (217), which is fixedly connected to the top of the through rod (211). The second half-rotary blade (207) is provided with a hiding groove (218).

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