Accurate and efficient positioning device for rotary excavating pile hole reinforcement cage

Abstract

The invention discloses a precise and efficient positioning device for a rotary excavating pile hole reinforcement cage. The precise and efficient positioning device comprises a positioning arm pusher, a U-shaped guide plate, a U-shaped rod and metal blocks distributed and welded to the reinforcement cage. According to the device, each metal block in each group distributed on the reinforcement cage is in sliding contact with the interior of the corresponding U-shaped guide plate, so that the speed of the reinforcement cage falling into a pile hole can be increased, the reinforcement cage can be placed in the middle of the pile hole, a large amount of soil is prevented from being scraped off to accumulate at the bottom in the pile hole, and the positioning accuracy of the reinforcement cage is improved; one end of a U-shaped rod is inserted into a round hole in an arm rod, the other end of the U-shaped rod is inserted into the ground of a construction site, the function of fixing the adjusted arm rod located in a positioning arm pusher is achieved, it is further guaranteed that a set of U-shaped guide plates distributed in a fixed size are kept unchanged, and a stable auxiliary structure is provided for follow-up hoisting and falling of a reinforcement cage. And the ring diameter size formed by the group of annularly distributed U-shaped guide plates is favorably matched with the cage diameter size of the reinforcement cage to be mounted.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering construction foundation construction, and in particular to a precise and efficient positioning device for a steel cage in a rotary-drilled pile hole. Background Art

[0002] With the rapid development of my country's expressway construction, many previously built sections are no longer able to meet current operational needs due to low design standards and increased transport traffic. They are facing problems such as reconstruction, expansion, and upgrading of road surface grades. In the coming period, expressway reconstruction and expansion will be a new trend. Bored piles are widely used as the foundation of structures, but the specifications require strict requirements for the center offset of the steel cage. The steel cage is mostly hoisted into the pile hole by a crane. During the process of hoisting the steel cage into the pile hole, the construction workers have little influence on the operation of the bulky steel cage, which increases the difficulty of the steel cage positioning operation. At the same time, the steel cage in the suspended state has the problem of shaking and deflecting, which scrapes off a large amount of soil and accumulates at the bottom of the pile hole. The secondary correction takes a long time, and the construction efficiency is low. Therefore, to address the above problems, a precise and efficient positioning device for the steel cage of the rotary pile hole is proposed. Summary of the Invention

[0003] The purpose of the present invention is to provide a precise and efficient positioning device for the steel cage of a rotary bored pile hole in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical scheme: a precise and efficient positioning device for the steel cage of a rotary drilling pile hole, comprising a positioning arm pusher, a U-shaped guide plate, a U-shaped rod and metal blocks distributed and welded on the steel cage, a group of the positioning arm pushers are distributed and arranged at the ring mouth of the same ring frame, and one end of the arm rod in each positioning arm pusher is rotatably connected to a turning block, a group of jacks on the turning block are inserted together with a group of insertion rods arranged on the back of the U-shaped guide plate, and the interiors of multiple U-shaped guide plates are in sliding contact with the metal blocks distributed and welded on the steel cage, one end of the U-shaped rod is inserted and fixed at the construction site, and the other end of the U-shaped rod is inserted into the circular hole to position and fix the positioning arm pusher, one end of the spring is fixedly installed on the middle side wall of the arm rod, an oil cylinder is installed inside the rectangular hole on the turning block, and the output end of the oil cylinder is inserted into the steel cage by extension.

[0005] According to a further technical solution, the metal blocks are provided in multiple groups distributed up and down, and a positioning sensor module is provided on each of the three groups located at the highest end, the middle end and the lowest end.

[0006] According to a further technical solution, the outer annular surface of the ring frame is welded and fixed to the inner wall of the cone frame, and the small-diameter end portion of the cone frame is inserted into the inside of the pile hole located at the construction site.

[0007] According to a further technical solution, the insertion hole passes through the upper and lower surfaces of the turning block, and the arc concave surface at one end of the turning block and the arc surface at one end of the arm rod are in sliding contact with each other.

[0008] According to a further technical solution, the other end of the arm is rotatably mounted inside the ring frame, and the other end of the spring connected to the side wall of the middle portion of the arm is fixedly mounted inside the ring frame.

[0009] A further technical solution is that a strip hole is opened on the back of the U-shaped guide plate, and the output end of the oil cylinder passes through the strip hole. The length of the U-shaped guide plate is the sum of the distances between the upper and lower four groups of metal blocks.

[0010] According to a further technical solution, the circular hole is opened on one side of the middle portion of the arm rod, and the inner wall of the circular hole is in sliding contact with the surface of the U-shaped rod.

[0011] According to a further technical solution, the insert rods are arranged in groups of two, and the top ends of the two insert rods are welded and fixed on the same fixing plate, and one end of the fixing plate is welded and fixed on the back of the U-shaped guide plate.

[0012] According to a further technical solution, a crane rope is connected to the top of the steel cage, and steel cages of different diameters are provided with mold rings of different diameters.

[0013] The beneficial effects of the present invention are:

[0014] 1. Each metal block in each group of the distributed steel cage slides in contact with the inside of the corresponding U-shaped guide plate, which can not only speed up the speed of the steel cage falling into the pile hole, but also prevent a large amount of soil from being scraped off and accumulated at the bottom of the pile hole by placing the steel cage in the middle of the pile hole;

[0015] 2. Each of the three groups at the top, middle, and bottom has a metal block equipped with a positioning sensor module. The positioning parameters displayed by the three positioning sensor modules on the positioning display device at the construction site can be used to determine whether the steel cage is aligned in the pile hole according to whether the three points are on the same straight line, thereby improving the accuracy of steel cage positioning;

[0016] 3. One end of the U-shaped rod is inserted into the circular hole on the arm, and the other end is inserted into the ground of the construction site, which plays a role in fixing the adjusted arm in the positioning arm pusher, further ensuring that a group of U-shaped guide plates with a fixed size distribution remain unchanged, providing a stable auxiliary structure for the subsequent lifting and lowering of the steel cage;

[0017] 4. The mold ring is located in the middle of a group of U-shaped guide plates distributed in a ring shape, and the surface of the mold ring is in contact with the surface of each U-shaped guide plate, which is conducive to matching the ring diameter size formed by the group of U-shaped guide plates distributed in a ring shape with the cage diameter size of the steel cage to be installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Figure 1 Demonstration of the use of the overall structure of the present invention in conjunction with the steel cage Figure 1 ;

[0021] Figure 2 Demonstration of the use of the overall structure of the present invention in conjunction with the steel cage Figure 2 ;

[0022] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 4 It is an enlarged view of a local structure of the present invention as a whole;

[0024] Figure 5 Schematic diagram of the connection structure between the steel cage and the oil cylinder of the present invention;

[0025] Figure 6 This is a schematic diagram of the positioning sensor module of the present invention being placed on a metal block.

[0026] In the figure: 1. Positioning arm pusher; 110. Arm; 120. Round hole; 130. Spring; 140. Turning block; 141. Insertion hole; 142. Rectangular hole; 150. Cylinder; 2. U-shaped guide plate; 210. Strip hole; 220. Fixing plate; 230. Insertion rod; 3. Ring frame; 4. Cone frame; 5. U-shaped rod; 6. Metal block; 610. Positioning sensor module; 7. Steel cage; 8. Crane rope; 9. Construction site; 910. Pile hole. DETAILED DESCRIPTION

[0027] In order to make the purposes, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] See also Figure 1-6 As shown, a precise and efficient positioning device for a rotary pile hole reinforcement cage comprises a positioning arm pusher 1, a U-shaped guide plate 2, a U-shaped rod 5 and a metal block 6 distributed and welded on a reinforcement cage 7. A group of positioning arm pushers 1 are distributed at the ring mouth of the same ring frame 3, and one end of the arm rod 110 in each positioning arm pusher 1 is rotatably connected to a turning block 140. A group of jacks 141 on the turning block 140 is plugged together with a group of plug rods 230 provided on the back of the U-shaped guide plate 2. The interior of the plurality of U-shaped guide plates 2 is connected to the metal blocks 6 distributed and welded on the reinforcement cage 7. The metal block 6 on the steel cage 7 is in sliding contact, one end of the U-shaped rod 5 is inserted and fixed at the construction site 9, and the other end of the U-shaped rod 5 is inserted into the circular hole 120 to form a positioning and fixation for the positioning arm pusher 1. One end of the spring 130 is fixedly installed on the middle side wall of the arm 110, and an oil cylinder 150 is installed inside the rectangular hole 142 on the turning block 140, and the output end of the oil cylinder 150 is inserted into the steel cage 7 by extension, wherein the top of the steel cage 7 is connected to the hoist rope 8, and steel cages 7 of different diameters are equipped with mold rings of different diameters;

[0031] The specific steps for hoisting and positioning the steel cage 7 and inserting it into the pile hole 910 are as follows:

[0032] Step 1: Use the conical surface of the cone frame 4 to be inserted into the hole of the pile hole 910 located at the construction site 9. The cone can be used in pile holes 910 with different hole diameters.

[0033] Step 2: The mold ring is located in the middle of a group of U-shaped guide plates 2 distributed in an annular manner, and the surface of the mold ring is in contact with the surface of each U-shaped guide plate 2. At this time, the spring 130 is in a compressed state, which is conducive to matching the ring diameter size formed by the group of U-shaped guide plates 2 distributed in an annular manner with the cage diameter size of the steel cage 7 to be installed;

[0034] Step 3: After the operation in step 2 is completed, one end of the U-shaped rod 5 is inserted into the circular hole 120 on the arm 110, and the other end is inserted into the ground of the construction site 9, so as to fix the adjusted arm 110 in the positioning arm pusher 1, further ensuring that the set of U-shaped guide plates 2 with a predetermined size distribution remain unchanged, and provide a stable auxiliary structure for the subsequent lifting and lowering of the steel cage 7;

[0035] Step 4: Remove the mold ring, and use a crane to lift the steel cage 7 connected by the crane rope 8 and drop it off the ground. At the same time, move the bottom of the steel cage 7 above a group of U-shaped guide plates 2, and then gradually lower the lifted steel cage 7. Each metal block 6 in each group distributed on the steel cage 7 slides in contact with the inside of the corresponding U-shaped guide plate 2, which can not only speed up the speed of the steel cage 7 falling into the pile hole 910, but also prevent a large amount of soil from being scraped off and accumulating at the bottom of the pile hole 910 by placing the steel cage 7 in the middle of the pile hole 910.

[0036] Step 5: When the bottom end of the steel cage 7 hits the bottom of the pile hole 910, a metal block 6 in each of the three groups at the top, middle, and bottom ends is provided with a positioning sensor module 610. The positioning parameters displayed by the three positioning sensor modules 610 on the positioning display device at the construction site can be used to determine whether the steel cage 7 is aligned in the pile hole 910 and meets the standards based on whether the three points are located on the same straight line, thereby improving the accuracy of the positioning of the steel cage 7.

[0037] Step 6: After the adjusted steel cage 7 is placed inside the pile hole 910, the construction team begins to pour concrete into the steel cage 7 inside the pile hole 910. When two-thirds of the space in the pile hole 910 is filled with concrete, the construction workers connect the U-shaped guide plates 2 from the turning block 140 one by one and remove the pile hole 910. After the operation is completed, the oil cylinder 150 located in the rectangular hole 142 is extended so that the output end of the oil cylinder 150 is inserted into the steel cage 7, so as to re-constrain and fix the portion of the steel cage 7 located at the pile hole 910. The oil cylinder 150 is connected to the external hydraulic system through a pipeline.

[0038] Step 7: After pouring the reinforcement cage 7 inside the pile hole 910, remove the related auxiliary structures one by one.

[0039] Combine Figure 2 and Figure 6 As shown, there are multiple groups of metal blocks 6 distributed up and down, and a positioning sensor module 610 is provided on each of the three groups located at the highest end, the middle part and the lowest end. By using the positioning parameters displayed on the positioning display device at the construction site by the three positioning sensor modules 610, it is possible to judge whether the steel cage 7 is aligned in the pile hole 910 and meets the standards based on whether the three points are located on the same straight line, thereby improving the accuracy of the positioning of the steel cage 7.

[0040] Combine Figure 2 As shown, the outer annular surface of the ring frame 3 is welded and fixed to the inner wall of the cone frame 4, and the small-diameter end portion of the cone frame 4 is inserted into the inside of the pile hole 910 located at the construction site 9. Through the conical surface of the cone frame 4, it can be inserted into pile holes 910 of different diameters.

[0041] like Figure 4As shown, the socket 141 passes through the upper and lower surfaces of the turning block 140, and the arc concave surface at one end of the turning block 140 is in sliding contact with the arc surface at one end of the arm 110. Since the turning block 140 and one end of the arm 110 are connected in a rotating manner, the direction of the U-shaped guide plate 2 connected to the turning block 140 can be adjusted. Once the multiple U-shaped guide plates 2 distributed in a ring deeply contact the metal block 6, all the multiple U-shaped guide plates 2 can be restricted from moving arbitrarily.

[0042] like Figure 4 As shown, the other end of the arm 110 is rotatably mounted inside the ring frame 3 , and the other end of the spring 130 connected to the middle side wall of the arm 110 is fixedly mounted inside the ring frame 3 .

[0043] like Figure 1 As shown, a strip hole 210 is opened on the back of the U-shaped guide plate 2, and the output end of the oil cylinder 150 passes through the strip hole 210. The length of the U-shaped guide plate 2 is the sum of the distances between the upper and lower four groups of metal blocks 6, which can ensure that the metal blocks 6 pass through the inside of the U-shaped guide plate 2 without interruption.

[0044] Furthermore, the circular hole 120 is opened on one side of the middle portion of the arm 110 , and the inner wall of the circular hole 120 is in sliding contact with the surface of the U-shaped rod 5 .

[0045] Furthermore, the insertion rods 230 are in groups of two, and the top ends of the two insertion rods 230 are welded and fixed on the same fixing plate 220 , and one end of the fixing plate 220 is welded and fixed on the back side of the U-shaped guide plate 2 .

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and scope of the appended claims be encompassed. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A precise and efficient positioning device for a steel cage in a rotary pile hole, characterized by: The invention comprises a positioning arm pusher (1), a U-shaped guide plate (2), a U-shaped rod (5) and a metal block (6) distributed and welded on a steel cage (7), wherein a group of the positioning arm pushers (1) are distributed and arranged at the ring opening of the same ring frame (3), and one end of the arm rod (110) in each positioning arm pusher (1) is rotatably connected to a turning block (140), a group of jacks (141) on the turning block (140) is plugged together with a group of plug rods (230) arranged on the back of the U-shaped guide plate (2), and a plurality of the U-shaped guide plates (2) are connected to each other. The inside of the plate (2) is in sliding contact with a metal block (6) distributed and welded on the steel cage (7); one end of the U-shaped rod (5) is inserted into the construction site (9), and the other end of the U-shaped rod (5) is inserted into the circular hole (120) to position and fix the positioning arm pusher (1); one end of a spring (130) is fixedly installed on the middle side wall of the arm rod (110); an oil cylinder (150) is installed inside the rectangular hole (142) on the turning block (140), and the output end of the oil cylinder (150) is inserted into the steel cage (7) by stretching.

2. The precise and efficient positioning device for a steel cage in a rotary pile hole according to claim 1, characterized in that: The metal blocks (6) are provided in multiple groups distributed up and down, and a positioning sensor module (610) is provided on each of the three groups located at the highest end, the middle end and the lowest end.

3. The precise and efficient positioning device for a steel cage in a rotary pile hole according to claim 1, characterized in that: The outer annular surface of the ring frame (3) is welded and fixed to the inner wall of the cone frame (4), and the small-diameter end portion of the cone frame (4) is inserted into the inside of the hole of the pile hole (910) located at the construction site (9).

4. The precise and efficient positioning device for a steel cage in a rotary pile hole according to claim 1, characterized in that: The insertion hole (141) passes through the upper and lower surfaces of the turning block (140), and the arc concave surface at one end of the turning block (140) and the arc surface at one end of the arm (110) are in sliding contact with each other.

5. The precise and efficient positioning device for a steel cage in a rotary pile hole according to claim 1, characterized in that: The other end of the arm (110) is rotatably mounted inside the ring frame (3), and the other end of the spring (130) connected to the middle side wall of the arm (110) is fixedly mounted inside the ring frame (3).

6. The precise and efficient positioning device for a steel cage in a rotary pile hole according to claim 1, characterized in that: A strip hole (210) is provided on the back of the U-shaped guide plate (2), and the output end of the oil cylinder (150) passes through the strip hole (210). The length of the U-shaped guide plate (2) is the sum of the distances between the upper and lower four groups of metal blocks (6).

7. The precise and efficient positioning device for a steel cage in a rotary pile hole according to claim 1, characterized in that: The circular hole (120) is opened on one side of the middle portion of the arm (110), and the inner wall of the circular hole (120) is in sliding contact with the surface of the U-shaped rod (5).

8. The precise and efficient positioning device for a steel cage in a rotary pile hole according to claim 1, characterized in that: The inserting rods (230) are arranged in groups of two, and the top ends of the two inserting rods (230) are welded and fixed on the same fixing plate (220), and one end of the fixing plate (220) is welded and fixed on the back of the U-shaped guide plate (2).

9. The precise and efficient positioning device for a steel cage in a rotary pile hole according to claim 1, characterized in that: The top of the steel cage (7) is connected to a hoist rope (8), and steel cages (7) with different diameters are equipped with mold rings with different diameters.

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