CN107130590B - Device for accurately inserting reinforcing steel bars into plain concrete pile and construction method - Google Patents
Device for accurately inserting reinforcing steel bars into plain concrete pile and construction method Download PDFInfo
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- CN107130590B CN107130590B CN201710496045.6A CN201710496045A CN107130590B CN 107130590 B CN107130590 B CN 107130590B CN 201710496045 A CN201710496045 A CN 201710496045A CN 107130590 B CN107130590 B CN 107130590B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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Abstract
The invention discloses a device for accurately inserting a steel bar into a plain concrete pile and a construction method. By adopting the device, a small amount of reinforcing steel bars are inserted into the pile body before the primary setting of the plain concrete pile during the pouring, and the reinforcing steel bars are ensured to be vertical and accurately enter the linkage device of the pile body.
Description
Technical Field
The invention belongs to the field of building construction devices, and particularly relates to a device for accurately inserting a steel bar into a plain concrete pile and a construction method.
Background
At present, a small amount of reinforcing steel bars are inserted into individual plain concrete piles during design, the conventional general insertion method is to perform mechanical striking sinking after the reinforcing steel bars are inserted, and the method cannot accurately ensure that the reinforcing steel bars are always vertical after the reinforcing steel bars are inserted into pile bodies, and the reinforcing steel bars cannot be bent or broken.
Although, there are currently auxiliary tools for insertion of reinforcing bars, for example: CN 204081515U discloses a special auxiliary device for concrete construction of a reinforced dense beam column, wherein the auxiliary device for inserting the reinforced bars still adopts a traditional hammering mode, so that the reinforced bars are easy to bend or break in the inserting process, and the quality of the reinforced bars cannot be ensured;
for another example: CN17730224A discloses a forming process of a concrete cast-in-place pile implanted in a reinforcement cage, which discloses a method of inserting the reinforcement cage, but the method adopts a method of drilling holes first, then hammering, hoisting and inserting, so that the construction process is complicated and the construction period is long.
Therefore, it is necessary to design a device for accurately inserting the reinforcing bars into the plain concrete pile, thereby solving the problem of difficulty in inserting the reinforcing bars into the plain concrete pile.
Disclosure of Invention
The invention provides a device for accurately inserting reinforcing steel bars into a plain concrete pile and a construction method.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a device with accurate plain concrete pile of inserting of reinforcing bar, it includes the reinforcing bar body, the end of reinforcing bar body is connected with straight thread sleeve through screw-thread fit, the outside cover of straight thread sleeve and reinforcing bar body is equipped with the steel pipe, the top of steel pipe and the contact position of reinforcing bar body pass through cross iron welded fastening, the outside cover of steel pipe is equipped with the gear, the top and the pile driver aircraft nose of steel pipe link to each other.
The gear is simultaneously in meshed transmission with the first gear and the second gear, and the first gear and the second gear are respectively installed on the other two steel pipes to be inserted into the outer portion of the steel bar body to form a gear linkage system to drive the steel pipes to rotate together.
The reinforcing bar body includes the reinforcing bar, the bottom processing of reinforcing bar has the external screw thread, has the pointed end at the terminal processing of the head of reinforcing bar.
The straight thread sleeve and the external thread of the steel bar form thread fixed connection.
The steel pipe comprises a straight steel pipe section, a conical end is machined at the head of the straight steel pipe section, and the small diameter of the conical end is 1-3mm larger than the outer diameter of the straight threaded sleeve.
The diameters of the gear, the first gear and the second gear comprise different specifications, and the diameters of the gear, the first gear and the second gear are determined according to the required interval between inserted steel bars.
The cross iron can be separated from the fixed connection between the steel bar body and the steel pipe in a cutting mode, and then the steel bar body and the steel pipe are separated.
The construction method adopting any steel bar inserting device comprises the following steps:
step 1: assembling the device, namely fixing the straight threaded sleeve on the external thread at the bottom of the steel bar through threaded connection, and sleeving the steel pipe outside the straight threaded sleeve and the steel bar body;
step 2: the top of the steel pipe is fixedly welded with the steel bar body through the cross iron, the steel bar body and the cross iron are fixedly connected, and torque can be transmitted;
step 3: sleeving a gear on the top of the steel pipe to ensure that the gear can transmit torque to the steel bar body;
step 4: connecting the top of the steel pipe provided with the gear with a pile machine, and ensuring that the torque of the pile machine can be transmitted to the steel pipe;
step 5: starting the pile machine, and inserting the steel bar body into the plain concrete pile through the rotation and pressing-down functions of the pile machine head;
step 6: and stopping the pile machine when the steel pipe is inserted to the designed height, cutting the steel bar body and the cross iron of the steel pipe to separate the steel bar body and the cross iron, and pulling out the steel pipe in a reverse rotation manner so as to leave the designed steel bar body in the pile body.
And in the Step4, selecting a corresponding device and a first gear and a second gear with corresponding sizes to form a multi-gear linkage system according to the number and the interval of the steel bar bodies to be inserted, and performing insertion construction of a plurality of steel bar bodies at one time.
The invention achieves the following technical effects:
1. the rigidity of steel pipe is greater than the reinforcing bar body, inserts plain concrete pile's in-process under, can effectually guarantee that the reinforcing bar can not bear too big moment of torsion, and then guarantees its integrality, guarantees that it can not take place distortion.
2. The tip of the end of the steel bar and the tapered end on the steel pipe can greatly reduce the resistance.
3. The diameter of the end part of the steel pipe is only 1mm larger than that of the straight thread sleeve at the end part of the steel bar, so that concrete is effectively prevented from entering the steel pipe in the process of inserting the integral component downwards.
4. The rotation and the downward pressing of the pile machine are directly transmitted to the steel pipe through the rod piece, the steel pipe is connected with the steel bar through the cross iron to drive the rotation of the steel bar, and therefore the fact that the rotating speed and the downward inserting speed of the whole component are consistent in the construction engineering is guaranteed.
5. The reinforcing bar is in the steel pipe all the time, with stake machine disconnection, belongs to passively rotates and inserts down, does not worry the emergence of twist-off phenomenon.
6. If be many reinforcing bars, then use the gear to drive, the reinforcing bar interval size uses different gear wheel dish location.
7. In the gear linkage system, a multistage rod piece with different diameters is sleeved, the joint of the rod piece and the rotating head of the pile machine is connected with a steel wire rope according to the matching size, and the rotating force is transmitted layer by layer at the lower part until the end part of the device.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the steel bar body of the present invention.
Fig. 3 is a schematic view of the assembly structure of the straight thread sleeve and the steel bar body of the invention.
FIG. 4 is a schematic view of the structure of the steel pipe of the present invention.
Fig. 5 is a schematic view of the assembly structure of the single steel bar body of the invention.
Fig. 6 is a schematic view of a structure for welding and fixing a single steel bar body and a steel pipe.
FIG. 7 is a schematic view of the overall construction process of the present invention.
In the figure: the steel bar reinforcing device comprises a steel bar body 1, a cross iron 2, a steel pipe 3, a straight thread sleeve 4, a gear 5, a first gear 6 and a second gear 7;
a steel bar 101, an external thread 102 and a tip 103;
straight steel pipe section 301, tapered end 302.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-6, a device for accurately inserting a steel bar into a plain concrete pile comprises a steel bar body 1, wherein the end of the steel bar body 1 is connected with a straight threaded sleeve 4 through thread fit, the straight threaded sleeve 4 and the steel bar body 1 are externally sleeved with a steel pipe 3, the top end of the steel pipe 3 and the contact position of the steel bar body 1 are welded and fixed through cross iron 2, the steel pipe 3 is externally sleeved with a gear 5, and the top of the steel pipe 3 is connected with a pile driver head.
Further, the gear 5 is meshed with the first gear 6 and the second gear 7 for transmission, and the first gear 6 and the second gear 7 are respectively installed on the other two steel pipes 3 to be inserted into the outside of the steel bar body 1 to form a gear linkage system to drive the steel pipes 3 to rotate together. The gear linkage system can realize the plug-in mounting operation of a plurality of reinforcing steel bars under the action of a pile machine.
Further, the steel bar body 1 comprises a steel bar 101, wherein the bottom of the steel bar 101 is provided with an external thread 102, and the end of the head of the steel bar 101 is provided with a tip 103. The friction force of the reinforcing steel bar 101 in the transmission insertion process can be conveniently and effectively reduced through the processing tip 103, and further the working efficiency is improved.
Further, the straight thread sleeve 4 and the external thread 102 of the steel bar 101 form a thread fixing connection. The steel pipe 3 can be positioned by the threaded sleeve 4.
Further, the steel pipe 3 comprises a straight steel pipe section 301, a tapered end 302 is machined at the head of the straight steel pipe section 301, and the minor diameter of the tapered end 302 is 1-3mm larger than the outer diameter of the straight threaded sleeve 4. The steel pipe 3 is mainly used for bearing the torque of the pile machine in the rotating process, so that the normal screwing process is ensured.
Further, the diameters of the gear 5, the first gear 6 and the second gear 7 include different specifications, and the diameters are determined according to the required interval between the inserted steel bars. The gears with different diameters are used for meeting the requirements of reinforcing steel bars with different size intervals.
Further, cross iron 2 can adopt the cutting mode to make it break away from with the fixed connection between reinforcing bar body 1 and the steel pipe 3, and then makes reinforcing bar body 1 and steel pipe 3 separation. The steel pipe 3 can be conveniently taken out after separation, and only the steel bar body 1 is left in the pipe.
Further, if many reinforcing bars insert simultaneously, then need weld the steelframe in the steel pipe outside, the stake machine exerts the overdraft to the support body, and the support body conducts the power for the steel pipe, and the overall stability of support body must can guarantee.
Example 2:
the construction method adopting any steel bar inserting device comprises the following steps:
step 1: assembling the device, namely fixing the straight threaded sleeve 4 on the external thread 102 at the bottom of the steel bar 101 through threaded connection, and sleeving the steel pipe 3 outside the straight threaded sleeve 4 and the steel bar body 1;
step 2: the top of the steel pipe 3 is fixedly welded with the steel bar body 1 through the cross iron 2, the steel pipe and the steel bar body are fixedly connected, and torque can be transmitted;
step 3: sleeving the gear 5 on the top of the steel pipe 3 to ensure that the gear 5 can transmit torque to the steel bar body 1;
step 4: the top of the steel pipe 3 provided with the gear 5 is connected with the pile driver, and the torque of the pile driver can be transmitted to the steel pipe 3;
step 5: starting the pile machine, and inserting the steel bar body 1 into the plain concrete pile through the rotation and pressing-down functions of the pile machine head;
step 6: and stopping the pile machine when the steel pipe 3 is inserted into the designed height, cutting the steel bar body 1 and the cross iron 2 of the steel pipe 3 to separate the steel bar body from the cross iron, and pulling out the steel pipe 3 in a reverse rotation manner so as to leave the designed steel bar body 1 in the pile body.
Further, according to the number and the spacing of the steel bar bodies 1 required to be inserted in the Step4, a corresponding device and the first gear 6 and the second gear 7 with corresponding sizes are selected to form a multi-gear linkage system, and the insertion construction of the steel bar bodies 1 is carried out at one time.
Example 3:
the specific manufacturing process of the device is as follows:
1. polishing a tip 103 at the end part of a steel bar with the length designed in a drawing, and threading the end close to the tip 103 to form an external thread 102;
2. sleeving a straight thread sleeve 4 matched with the diameter of the steel bar at the end part of the external thread 102 of the steel bar;
3. making a cross-shaped cut at the end part of the steel pipe 3 by using a cutting machine, wherein the depth of the cut is 10cm, placing a steel ring in the cut, welding the end part with the steel ring, polishing to obtain a round opening, wherein the diameter of the steel ring is 1-3mm larger than that of a lower straight thread sleeve, polishing, and then penetrating a processed steel bar into the steel pipe;
4. when the straight thread sleeve penetrates through half of the lower opening of the steel pipe, the steel pipe and the steel bar are welded and fixed at the upper part by using a cross iron piece;
5. the steel pipe is driven to rotate by using a gear linkage system, a rod piece at the upper part of a gear is connected with a pile driver to generate a power source, if a plurality of steel bars exist, the steel bars are driven by using the gear, and the space between the steel bars is positioned by using different gear wheel discs;
6. because the original pile machine has the functions of rotation and pressing down, the linkage system utilizes the point to accurately position the steel pipe, when the steel pipe is inserted into the pile at a designated elevation and position, the steel pipe is cut by the connecting iron piece of the upper steel bar and the steel pipe, and then the steel pipe is pulled out in a counter-rotation manner, so that the designed inserted steel bar is left in the pile body.
From the above description, those skilled in the art can make various changes and modifications within the scope of the technical idea of the present invention without departing from the scope of the invention. The present invention is not limited to the details given herein, but is within the ordinary knowledge of those skilled in the art.
Claims (7)
1. The utility model provides a device with accurate insertion plain concrete pile of reinforcing bar which characterized in that: the steel bar pile driver comprises a steel bar body (1), wherein the end of the steel bar body (1) is connected with a straight threaded sleeve (4) in a threaded fit mode, a steel pipe (3) is sleeved outside the straight threaded sleeve (4) and the steel bar body (1), the top end of the steel pipe (3) and the contact position of the steel bar body (1) are fixedly welded through cross iron (2), a gear (5) is sleeved outside the steel pipe (3), and the top of the steel pipe (3) is connected with a pile driver head;
the gear (5) is simultaneously in meshed transmission with the first gear (6) and the second gear (7), and the first gear (6) and the second gear (7) are respectively installed on the other two steel pipes (3) to be inserted into the outer part of the steel bar body (1) to form a gear linkage system to drive the steel pipes (3) to rotate together;
the steel bar body (1) comprises a steel bar (101), external threads (102) are machined at the bottom of the steel bar (101), and a tip (103) is machined at the tail end of the head of the steel bar (101).
2. The apparatus for inserting reinforcing bars into a plain concrete pile according to claim 1, wherein: the straight thread sleeve (4) and the external thread (102) of the steel bar (101) form thread fixed connection.
3. The apparatus for inserting reinforcing bars into a plain concrete pile according to claim 1, wherein: the steel pipe (3) comprises a straight steel pipe section (301), a tapered end (302) is machined at the head of the straight steel pipe section (301), and the small-diameter of the tapered end (302) is 1-3mm larger than the outer diameter of the straight threaded sleeve (4).
4. The apparatus for inserting reinforcing bars into a plain concrete pile according to claim 1, wherein: the diameters of the gear (5), the first gear (6) and the second gear (7) comprise different specifications, and the diameters of the gears are determined according to the distance between the steel bars to be inserted.
5. The apparatus for inserting reinforcing bars into a plain concrete pile according to claim 1, wherein: the cross iron (2) can be separated from the fixed connection between the steel bar body (1) and the steel pipe (3) in a cutting mode, and then the steel bar body (1) and the steel pipe (3) are separated.
6. A construction method using the apparatus for inserting reinforcing bars accurately into plain concrete piles as claimed in any one of claims 1 to 5, which comprises the steps of:
step 1: assembling the device, namely fixing the straight threaded sleeve (4) on the external thread (102) at the bottom of the steel bar (101) through threaded connection, and sleeving the steel pipe (3) outside the straight threaded sleeve (4) and the steel bar body (1);
step 2: the top of the steel pipe (3) is welded and fixed with the steel bar body (1) through the cross iron (2), so that the steel pipe and the steel bar body are fixedly connected and can transmit torque;
step 3: sleeving the gear (5) on the top of the steel pipe (3) to ensure that the gear (5) can transmit torque to the steel bar body (1);
step 4: the top of the steel pipe (3) provided with the gear (5) is connected with the pile driver, and the torque of the pile driver can be transmitted to the steel pipe (3);
step 5: starting the pile machine, and inserting the steel bar body (1) into the plain concrete pile through the rotation and pressing-down functions of the pile machine head;
step 6: and stopping the pile driver when the steel pipe (3) is inserted to the designed height, cutting the steel bar body (1) and the cross iron (2) of the steel pipe (3) to separate the steel bar body and the cross iron from each other, and then pulling out the steel pipe (3) in a reverse rotation manner, so that the designed steel bar body (1) is left in the pile body.
7. The method for constructing a device for accurately inserting reinforcing bars into a plain concrete pile according to claim 6, wherein: according to the number and the spacing of the steel bar bodies (1) required to be inserted in the Step4, a corresponding device and the first gear (6) and the second gear (7) with corresponding sizes are selected to form a multi-gear linkage system, and the multiple steel bar bodies (1) are inserted at one time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710496045.6A CN107130590B (en) | 2017-06-26 | 2017-06-26 | Device for accurately inserting reinforcing steel bars into plain concrete pile and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710496045.6A CN107130590B (en) | 2017-06-26 | 2017-06-26 | Device for accurately inserting reinforcing steel bars into plain concrete pile and construction method |
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| Publication Number | Publication Date |
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| CN107130590A CN107130590A (en) | 2017-09-05 |
| CN107130590B true CN107130590B (en) | 2022-04-22 |
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2017
- 2017-06-26 CN CN201710496045.6A patent/CN107130590B/en active Active
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