Bridge pile foundation rotary drilling hole-forming stone-removing device

Abstract

The utility model relates to the technical field of bridge pile foundation construction, and discloses a bridge pile foundation rotary excavating hole-forming stone removing device which comprises a supporting frame and further comprises a rope connected to the surface of the supporting frame in a sliding mode, a base face layer is fixedly connected to the bottom of the supporting frame, and a pile hole is excavated in the base face layer. In the construction process, when a rope drives the positioning ring and the whole device to descend into a pile hole, an operator can start a small hydraulic rod in the limiting piece to drive the three guide wheels to expand outwards so that the guide wheels can be tightly attached to the inner wall of the pile hole, the stability of the device during vertical movement in the pile hole is effectively enhanced through the design, and especially under the severe weather condition, the construction efficiency is improved. The adverse effect caused by shaking of the rope can be obviously reduced, and meanwhile, the clamping range of the grabbing piece is enlarged through the extensible clamping strip and the extension frame structure; due to the combined design of the racks and the rubber strips, the friction force during gravel clamping is greatly improved, and smooth stones are effectively prevented from slipping off.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge pile foundation construction, in particular to a rotary drilling and stone taking device for bridge pile foundation. Background Technique

[0002] In bridge pile foundation construction, the rotary drilling and stone taking device is a special equipment for efficiently drilling holes and removing crushed stones and obstacles in the hole under complex geological conditions such as pebble layer, strongly weathered rock, hard rock, etc. It is usually used in combination with a rotary drilling rig, and through methods such as rotary cutting, grabbing or crushing, it ensures the hole forming quality and construction efficiency of the pile hole.

[0003] After bridge pile foundation construction, there are usually some crushed stones remaining inside the pile hole, so a stone taking device is needed for cleaning. At present, common stone taking devices generally use rope hoisting to go deep into the pile hole for operation, but its claw structure is relatively single, and it is easy to slip when grabbing smooth-surfaced crushed stones, affecting the cleaning effect. In addition, in case of bad weather, the rope is prone to shaking, resulting in the instability of the stone taking device in the pile hole, further reducing the stone taking efficiency and affecting the construction progress. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rotary drilling and stone taking device for bridge pile foundation to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A rotary drilling and stone taking device for bridge pile foundation, including a support frame, and further including:

[0006] A cable slidingly connected to the surface of the support frame. The bottom of the support frame is fixedly connected with a base layer, and a pile hole is dug inside the base layer. One end of the cable away from the support frame extends into the pile hole and is fixedly connected with a positioning ring;

[0007] A connecting frame fixed to the surface of the positioning ring. The bottom of the connecting frame is fixedly connected with a fixing ring. Three limiting shells are fixedly connected inside the connecting frame. A limiting member is arranged at the bottom of the positioning ring, and the limiting member includes a small hydraulic rod and a sliding block;

[0008] A limiting frame fixed to the bottom of the fixing ring. The top of the fixing ring is fixedly connected with a grabbing member, and the grabbing member includes a medium-sized hydraulic rod.

[0009] Preferably, reinforcing blocks are fixedly connected to both sides of the connecting frame, and one side of the reinforcing block is fixedly connected with the limiting shell.

[0010] Preferably, the small hydraulic rod is fixed to the bottom of the positioning ring. The piston end of the small hydraulic rod is fixedly connected with a retaining ring. Three guide plates are hinged to the bottom of the retaining ring. One end of the guide plate away from the retaining ring is hinged to the sliding block. The surface of the sliding block is slidably connected to the inside of the limit shell. One side of the sliding block is fixedly connected with a push rod. One side of the push rod is fixedly connected with a positioning plate. One side of the positioning plate is provided with a guide wheel.

[0011] Preferably, sliding columns are fixedly connected to both sides of the sliding block, and sliding grooves for cooperating with the sliding columns are formed inside the limit shell.

[0012] Preferably, the medium-sized hydraulic rod is fixed to the top of the fixed ring. The piston end of the medium-sized hydraulic rod penetrates to the bottom of the fixed ring and is fixedly connected with three fixed blocks. An extension plate is hinged to the surface of the fixed block. One side inside the extension plate is hinged with a support column. The middle of the support column is rotationally connected to the inside of the limit frame through a support rod. One side of the support column is fixedly connected with a clamping strip.

[0013] Preferably, extension frames are fixedly connected to both sides of the clamping strip, and racks are fixedly connected to the clamping strip in an array on one side. A rubber strip is fixedly connected to the bottom of one side of the extension frame.

[0014] Preferably, reinforcing ribs are fixedly connected to both sides of the limit frame, and the top of the reinforcing ribs is fixedly connected to the fixed ring.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] During the construction process of the present utility model, when the cable drives the positioning ring and the whole device to descend into the pile hole, the operator can start the small hydraulic rod in the limiting member to drive the three guide wheels to expand outwards and make them closely fit the inner wall of the pile hole. This design effectively enhances the stability of the device when moving up and down in the pile hole. Especially under bad weather conditions, it can significantly reduce the adverse effects caused by the shaking of the rope. At the same time, the grasping member has an expandable clamping strip and extension frame structure, which increases the clamping range; the combination design of the rack and the rubber strip greatly improves the friction when clamping gravel and effectively prevents the smooth stones from slipping off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a bridge pile foundation rotary drilling and stone extraction device provided by the present utility model;

[0018] Figure 2 is a schematic cross-sectional structure diagram of the base surface layer provided by the present utility model;

[0019] Figure 3 is a schematic internal structure diagram of the pile hole provided by the present utility model;

[0020] Figure 4 Provided by the present utility model Figure 3 The enlarged structure schematic diagram at position A in

[0021] Figure 5 The structural schematic diagram of the grasping member provided by the present utility model.

[0022] In the figure: 1, support frame; 2, cable; 3, base layer; 4, pile hole; 5, positioning ring; 6, connecting frame; 7, fixing ring; 8, limiting shell; 9, limiting member; 901, small hydraulic rod; 902, sliding block; 903, retaining ring; 904, guide plate; 905, push rod; 906, positioning plate; 907, guide wheel; 908, sliding column; 10, limiting frame; 11, grasping member; 1101, medium-sized hydraulic rod; 1102, fixing block; 1103, extension plate; 1104, support column; 1105, clamping strip; 1106, extension frame; 1107, rack; 1108, rubber strip; 12, reinforcing block; 13, reinforcing rib. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 As shown in the figure, a device for rotary drilling and stone extraction of bridge pile foundations includes a support frame 1, and further includes:

[0025] A cable 2 slidably connected to the surface of the support frame 1, a base layer 3 is fixedly connected to the bottom of the support frame 1, a pile hole 4 is dug inside the base layer 3, and one end of the cable 2 away from the support frame 1 extends into the pile hole 4 and is fixedly connected to a positioning ring 5;

[0026] A connecting frame 6 fixed to the surface of the positioning ring 5, a fixing ring 7 is fixedly connected to the bottom of the connecting frame 6, three limiting shells 8 are fixedly connected to the inside of the connecting frame 6, a limiting member 9 is arranged at the bottom of the positioning ring 5, and the limiting member 9 includes a small hydraulic rod 901 and a sliding block 902;

[0027] The limit frame 10 fixed to the bottom of the fixed ring 7, the top of the fixed ring 7 is fixedly connected with a grasping member 11. The grasping member 11 includes a medium-sized hydraulic rod 1101. The support frame 1 facilitates the limit support of the cable 2, so that the cable 2 can drive the positioning ring 5 to extend into the inside of the pile hole 4. The connecting frame 6 facilitates the support of the limit shell 8, so as to assist the cooperation of the limit member 9 for support and drive. Through the fixation of the fixed ring 7 and the limit frame 10, it is convenient to assist in fixing the grasping member 11 for driving use.

[0028] Both sides of the connecting frame 6 are fixedly connected with reinforcing blocks 12. One side of the reinforcing block 12 is fixedly connected with the limit shell 8. Both sides of the limit frame 10 are fixedly connected with reinforcing ribs 13. The top of the reinforcing rib 13 is fixedly connected with the fixed ring 7. The reinforcing block 12 is fixed between the limit shell 8 and the connecting frame 6, so as to ensure its stability and durability after long-term use. The reinforcing rib 13 is fixed between the fixed ring 7 and the limit frame 10. Similarly, its stability and durability after long-term use are also ensured.

[0029] The small hydraulic rod 901 is fixed to the bottom of the positioning ring 5. The piston end of the small hydraulic rod 901 is fixedly connected with a retaining ring 903. Three guide plates 904 are hinged to the bottom of the retaining ring 903. One end of the guide plate 904 away from the retaining ring 903 is hinged to the sliding block 902. The surface of the sliding block 902 is slidably connected to the inside of the limit shell 8. One side of the sliding block 902 is fixedly connected with a push rod 905. One side of the push rod 905 is fixedly connected with a positioning plate 906. One side of the positioning plate 906 is provided with a guide wheel 907. Both sides of the sliding block 902 are fixedly connected with sliding columns 908. A chute for cooperating with the sliding columns 908 is opened inside the limit shell 8. First, when the user unfolds the guide wheel 907 to fit the inner wall of the pile hole 4 to ensure the stability of the device during up and down movement, the piston end of the small hydraulic rod 901 can be opened to lower the retaining ring 903. When the retaining ring 903 descends, it will exert pressure on one side of the guide plate 904, and the guide plate 904 will drive the sliding block 902 inside the limit shell 8 and drive the sliding columns 908 to move inside the chute. At this time, the sliding block 902 will drive the push rod 905 and the positioning plate 906 to extend the guide wheel 907 to one side. Through the arrangement of the three groups of guide wheels 907, the stability of the triangle is reflected, ensuring the stability of the device during up and down movement.

[0030] The medium-sized hydraulic rod 1101 is fixed to the top of the fixed ring 7. The piston end of the medium-sized hydraulic rod 1101 penetrates to the bottom of the fixed ring 7 and is fixedly connected with three fixed blocks 1102. An extension plate 1103 is hinged to the surface of the fixed block 1102. One side inside the extension plate 1103 is hinged with a support column 1104. The middle of the support column 1104 is rotationally connected to the inside of the limit frame 10 through a support rod. One side of the support column 1104 is fixedly connected with a clamping strip 1105. Extension frames 1106 are fixedly connected to both sides of the clamping strip 1105. A rack 1107 is fixedly connected in an array on one side of the clamping strip 1105. A rubber strip 1108 is fixedly connected to the bottom of one side of the extension frame 1106. When the user needs to grab gravel, the piston end of the medium-sized hydraulic rod 1101 is opened to move the fixed block 1102 upward. As the fixed block 1102 moves, it will drive the extension plate 1103 to tilt upward a little. The support column 1104 hinged to the extension plate 1103 will also move inward with the limit frame 10 as the pivot point. As the support column 1104 moves, it will drive the clamping strip 1105 and the extension frame 1106 to slowly wrap the stone. Then when rising, the rack 1107 is clamped on the surface of the stone, and the rubber strip 1108 is used to increase the clamping friction force to prevent the stone from loosening when rising, improving the overall efficiency of the stone-grabbing work.

[0031] Working principle: First, fix the support frame 1 on the pre-dug pile hole 4 in advance, then connect the cable 2 to a winding device such as a crane at the port. Subsequently, vertically place the positioning ring 5 into the interior of the pile hole 4. At this time, when the user unfolds the guide wheel 907 to fit against the inner wall of the pile hole 4 to ensure the stability of the device during up and down movement, the piston end of the small hydraulic rod 901 can be opened to lower the retaining ring 903. When the retaining ring 903 descends, it will exert pressure on one side of the guide plate 904. The guide plate 904 will drive the sliding block 902 inside the limit shell 8 and drive the sliding column 908 to move inside the chute. At this time, the sliding block 902 will drive the push rod 905 and the positioning plate 906 to extend the guide wheel 907 to one side. With the arrangement of the three groups of guide wheels 907, the stability of the triangle is reflected, ensuring the stability of the device during up and down movement. As the device slowly descends to a certain extent, when the user needs to grab gravel, the piston end of the medium hydraulic rod 1101 is opened to move the fixed block 1102 upward. As the fixed block 1102 moves, it will drive the extension plate 1103 to tilt upward a little, and the support column 1104 hinged to the extension plate 1103 will also move inward with the limit frame 10 as the pivot point. As the support column 1104 moves, it will drive the clamping strip 1105 and the extension frame 1106 to slowly wrap the stone. Then, when rising, the rack 1107 is clamped on the surface of the stone, and the rubber strip 1108 is used to increase the clamping friction force to prevent the stone from loosening during rising, improving the overall efficiency of the stone-grabbing work. It should be noted that both the small hydraulic rod 901 and the medium hydraulic rod 1101 are electrically connected to the remote controller through cables, facilitating the free contraction of their piston ends.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary drilling and stone extraction device for bridge pile foundations, comprising a support frame (1), characterized in that, It further includes: A cable (2) slidably connected to the surface of the support frame (1). The bottom of the support frame (1) is fixedly connected with a base layer (3). A pile hole (4) is dug inside the base layer (3). One end of the cable (2) away from the support frame (1) extends into the pile hole (4) and is fixedly connected with a positioning ring (5); A connecting frame (6) fixed to the surface of the positioning ring (5). The bottom of the connecting frame (6) is fixedly connected with a fixing ring (7). Three limiting shells (8) are fixedly connected inside the connecting frame (6). A limiting member (9) is arranged at the bottom of the positioning ring (5). The limiting member (9) includes a small hydraulic rod (901) and a sliding block (902); A limiting frame (10) fixed to the bottom of the fixing ring (7). The top of the fixing ring (7) is fixedly connected with a grasping member (11). The grasping member (11) includes a medium-sized hydraulic rod (1101).

2. The rock-taking device for rotary drilling of bridge pile foundation according to claim 1, characterized in that: Reinforcing blocks (12) are fixedly connected to both sides of the connecting frame (6). One side of the reinforcing block (12) is fixedly connected with the limiting shell (8).

3. The rock-taking device for rotary drilling of bridge pile foundation according to claim 1, characterized in that: The small hydraulic rod (901) is fixed to the bottom of the positioning ring (5). The piston end of the small hydraulic rod (901) is fixedly connected with a retaining ring (903). Three guide plates (904) are hinged to the bottom of the retaining ring (903). One end of the guide plate (904) away from the retaining ring (903) is hinged to the sliding block (902). The surface of the sliding block (902) is slidably connected to the inside of the limiting shell (8). One side of the sliding block (902) is fixedly connected with a push rod (905). One side of the push rod (905) is fixedly connected with a positioning plate (906). A guide wheel (907) is installed on one side of the positioning plate (906).

4. A rock extraction device for rotary drilling of bridge pile foundations according to claim 3, characterized in that: Sliding columns (908) are fixedly connected to both sides of the sliding block (902). Sliding grooves for cooperating with the sliding columns (908) are opened inside the limiting shell (8).

5. A device for rotary drilling and stone extraction of bridge pile foundations according to claim 1, characterized in that: The medium-sized hydraulic rod (1101) is fixed to the top of the fixing ring (7). The piston end of the medium-sized hydraulic rod (1101) penetrates to the bottom of the fixing ring (7) and is fixedly connected with three fixing blocks (1102). An extension plate (1103) is hinged to the surface of the fixing block (1102). One side inside the extension plate (1103) is hinged with a support column (1104). The middle of the support column (1104) is rotatably connected to the inside of the limiting frame (10) through a support rod. One side of the support column (1104) is fixedly connected with a clamping strip (1105).

6. The rock-taking device for rotary drilling of bridge pile foundation according to claim 5, characterized in that: Extension frames (1106) are fixedly connected to both sides of the clamping strip (1105). Rack teeth (1107) are fixedly connected in an array on one side of the clamping strip (1105). A rubber strip (1108) is fixedly connected to the bottom of one side of the extension frame (1106).

7. A rotary drilling and stone extraction device for bridge pile foundations according to claim 1, characterized in that: Reinforcing ribs (13) are fixedly connected to both sides of the limiting frame (10). The top of the reinforcing rib (13) is fixedly connected with the fixing ring (7).

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