A bored pile drilling positioning device

Abstract

The present invention discloses a bored pile drilling positioning device, which relates to the field of foundation pile construction, including a casing that is centrally arranged and used for a pile driver drill rod to pass through, the top of the casing is connected to a support pedestal, the support pedestal is provided with a passage opening that is communicated with the casing and used for the drill rod to pass through; a correction mechanism that is movably arranged and used for correcting and adjusting the drill rod is installed on the top of the support pedestal; a movable guiding mechanism that is used for guiding and positioning the drill rod is installed above the correction mechanism; a centrally arranged supporting and limiting steel sleeve that is used for the drill rod to pass through and support and limit the drill rod is installed above the movable guiding mechanism. The device can not only guide the drill rod during the foundation pile drilling process, but also can timely remind and alarm the on-site construction personnel that the vertical inclination of the drill rod exceeds the standard, so as to facilitate timely "correction in motion" and thus ensure the quality of the pile foundation hole.

Description

Technical Field

[0001] The invention relates to the field of foundation pile construction, in particular to a bored pile drilling positioning device. Background Art

[0002] Pile foundation is a deep foundation that connects the tops of several piles into a whole through a cap to jointly bear dynamic and static loads. The function of the pile foundation is to transfer the load to the soil layer with good bearing performance deep underground to meet the requirements of bearing capacity and settlement. The pile foundation has a high bearing capacity and can withstand vertical loads, horizontal loads, uplift loads and vibration loads. It is the most widely used form of deep foundation. For example: there is an unstable soil layer under the building, such as liquefied soil, collapsible loess, seasonal frozen soil, expansive soil, etc., and pile foundations are used to transfer the load to the deep dense and stable soil layer; when the foundation is uneven or the load is unevenly distributed, and the natural foundation cannot meet the requirements of the structure for uneven deformation, pile foundations can be used.

[0003] There are many methods for pile foundation construction, the most common ones are forward and reverse circulation drilling, rotary drilling and other construction drilling methods. During the drilling process of these pile drivers, the drill bit of the pile driver drill rod is subjected to different forces under different geological conditions, so the drill bit of the drill rod will deviate during the drilling process, causing the drill rod to tilt, causing the drilled pile foundation hole to tilt. In severe cases, it may even cause the verticality of the drilled pile foundation hole to fail to meet the requirements, resulting in a waste hole, which then needs to be re-drilled, resulting in increased costs and delayed construction progress. Although the currently used casing for guiding the pile driver drill rod can play a certain guiding role, it still has the following problems:

[0004] 1. The existing casing cannot intuitively determine whether the drill pipe is tilted, and on-site construction personnel are required to frequently check and measure the verticality of the drill pipe;

[0005] 2. During the drilling process, the drill rod cannot be adjusted in limit positions to achieve the concept of "correcting deviation in motion and correcting deviation as it occurs". Summary of the invention

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A bored pile drilling positioning device, comprising a casing arranged through the center and used for a pile driver drill rod to pass through, the top of the casing is connected to a support pedestal used for contacting the ground around the pile foundation drilling hole, and the support pedestal is provided with a passage opening communicated with the casing for the drill rod to pass through;

[0008] The top of the support platform is provided with a movably arranged deviation correction mechanism for correcting the drill rod;

[0009] A movable guiding mechanism for guiding and positioning the drill rod is installed above the deviation correction mechanism;

[0010] A supporting and limiting steel sleeve is installed above the movable guide mechanism and is used for the drill rod to pass through and support and limit the drill rod.

[0011] Preferably, the movable guide mechanism comprises a guide positioning plate, the guide positioning plate is provided with a positioning channel which is coaxially connected with the channel opening of the support platform and is used for the drill rod to pass through;

[0012] The positioning channel of the guide positioning plate is respectively provided with movable structures, and the movable structures are movably connected with positioning guide rollers, and a plurality of the positioning guide rollers are used to guide and position the drill rod passing through the positioning channel;

[0013] The guide positioning plate is connected and fixed to the supporting platform via a fixing plate on all sides.

[0014] Preferably, the movable structures all include movable struts;

[0015] The top end of the movable support is used to connect with the support top plate, the support limit steel sleeve is installed and connected to the support top plate and is arranged through the support top plate, and the support limit steel sleeve is arranged through the positioning channel coaxially;

[0016] The bottom end of the movable support movably passes through the guide positioning plate;

[0017] A movable connecting rod is hingedly connected to one side of the movable pillar close to the positioning channel through an articulated seat, and one end of the movable connecting rod away from the movable pillar is rotatably connected to the positioning guide roller through a rotating shaft.

[0018] Preferably, one end face of the movable connecting rod close to the guide positioning plate is hinged to a support rod through a hinge seat, and the support rod is hingedly arranged on a side close to the movable pillar, and one end of the support rod away from the movable connecting rod is connected to the guide positioning plate.

[0019] Preferably, one end of the movable connecting rod away from the supporting rod is hinged to an inclined movable hinge rod through a hinge seat, one end of the movable hinge rod away from the movable connecting rod is hinged to a movable slider through a hinge seat, and the movable slider is slidably arranged with the top end of the supporting top plate;

[0020] The hinge seat where the movable hinge rod is hinged to the movable connecting rod is arranged on a side away from the positioning guide roller.

[0021] Preferably, a movable shaft is movably provided on the movable slider, an end of the movable shaft close to the positioning guide roller is connected to an alarm induction hoop, an end of the movable shaft away from the alarm induction hoop is provided with an induction relay, the induction relay is installed and fixed on the bottom end surface of the supporting top plate, an induction alarm is installed on the top surface of the supporting top plate, and the induction alarm is electrically connected to the induction relay;

[0022] The drill pipe tilts, and the tilted side of the drill pipe comes into contact with the alarm induction hoop, which pushes the movable shaft toward one end of the induction relay. When the movable shaft approaches one end of the induction relay, the switch of the induction relay is triggered to open, and the induction alarm connected to the induction relay gives an alarm prompt.

[0023] A deformation spring is arranged between the movable slider and the alarm induction hoop. The deformation spring is penetrated on the movable shaft. One end of the deformation spring is connected to the alarm induction hoop, and the other end of the deformation spring is connected to the movable slider.

[0024] Preferably, a steel cylinder coaxial with and through the positioning channel is installed and connected to the top of the positioning channel, and the drill rod passes through the steel cylinder;

[0025] A plurality of guide movable rods are respectively arranged around the steel cylinder, one end of the guide movable rod movably passes through the supporting top plate and the end is connected to a limited end cap, and the other end of the guide movable rod is connected to the guide positioning plate;

[0026] The guide movable rods are respectively provided with high-strength return springs, one end of the high-strength return spring is connected to the support top plate, and the other end of the high-strength return spring is connected to the guide positioning plate.

[0027] Preferably, a plurality of movable hydraulic jacks are provided between the guide positioning plate and the supporting top plate;

[0028] One end of the movable hydraulic jack is connected to the guide positioning plate, and the other end of the movable hydraulic jack is connected to the supporting top plate.

[0029] Preferably, the deviation correction mechanism comprises a deviation correction adjustment hoop;

[0030] One end surface of the correction adjustment hoop is used to contact the drill pipe, and the other end surface of the correction adjustment hoop is connected to a correction adjustment hydraulic jack, and the correction adjustment hydraulic jack is installed and connected to a rotating adjustment disk, and the rotating adjustment disk is rotatably connected to the supporting platform;

[0031] The rotary adjustment disk is provided with a deviation correction channel for the drill rod to pass through, and the deviation correction channel is coaxially connected with the casing.

[0032] Preferably, a rotating gear is connected to the bottom end of the rotating adjustment disk, and the rotating gear is rotatably connected to the supporting platform through a bearing;

[0033] The rotating gear is arranged through the center, and the rotating gear and the inner ring of the bearing are arranged through the center for the drill rod to pass through. The rotating gear, the bearing, and the passage opening of the supporting platform are arranged through the center of the axis.

[0034] The beneficial effects of the present invention are as follows: the purpose of the present invention is to provide a bored pile drilling positioning device, the guiding positioning device is obtained by further designing and improving on the basis of the existing casing, the guiding positioning device is additionally provided with a correction mechanism, the correction mechanism is used to position the drill rod in the drilling process of the foundation pile foundation, and realizes the correction in motion during the drilling process, so as to reduce the "accumulation" of the inclination of the drill rod during drilling, and ensure the verticality of the pile foundation drilling hole; at the same time, the movable guiding mechanism designed on the guiding positioning device can not only guide the drill rod in the drilling process of the foundation pile foundation, but also adjust the movable guiding mechanism according to actual conditions, limit the drill rod, and reduce the inclination of the drilling process; and, if the inclination of the drill rod exceeds the design allowance during the drilling process, the active guiding mechanism can realize an alarm, so that the on-site construction personnel can promptly find that the vertical inclination of the drill rod exceeds the standard, and promptly "correct the deviation in motion", thereby ensuring the quality of the pile foundation hole, improving the construction efficiency, saving the construction time, and ensuring the progress requirements of the construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a front view schematic diagram of the overall connection effect of a bored pile drilling positioning device of the present invention;

[0036] Figure 2 It is an exploded schematic diagram of the connection structure part of a bored pile drilling positioning device of the present invention;

[0037] Figure 3 It is a schematic diagram of the connection structure of the deviation correction mechanism of a bored pile drilling positioning device of the present invention;

[0038] Figure 4 It is a schematic diagram of the connection structure of the movable guide mechanism of a bored pile drilling positioning device of the present invention;

[0039] Figure 5 It is an exploded schematic diagram of the connecting structure of the movable guide mechanism of a bored pile drilling positioning device of the present invention;

[0040] Figure 6 It is a schematic diagram of the movable structure connection structure of a bored pile drilling positioning device of the present invention;

[0041] Figure 7 Schematic diagram of the exploded structure of the movable structure connection structure of the bored pile drilling positioning device of the present invention

[0042] In the figure, 1-casing, 2-support pedestal, 3-support limiting steel sleeve, 4-guide positioning plate, 5-movable hydraulic jack, 6-rotating gear, 31-support top plate, 32-induction relay, 33-induction alarm, 41-positioning guide roller, 42-movable pillar, 43-movable connecting rod, 44-support rod, 45-movable hinged rod, 46-movable slider, 47-guide movable rod, 48-high-strength reset spring, 61-rotating adjustment disk, 62-correction adjustment hydraulic jack, 63-correction adjustment hoop, 461-movable shaft, 462-alarm induction hoop, 463-deformation spring. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0044] Example 1

[0045] like Figures 1 to 7 As shown, the guiding and positioning device is obtained by further design and improvement on the basis of the existing casing. The guiding and positioning device structurally includes a casing 1 which is centrally arranged and used for the pile driver drill rod to pass through. The top of the casing 1 is connected to a supporting platform 2 which is used to contact the ground around the pile foundation drilling hole. The supporting platform 2 is provided with a passage opening which is connected to the casing and used for the drill rod to pass through. At the same time, a correction mechanism which is movable and used for correcting and adjusting the drill rod is installed on the top of the supporting platform 2. A movable guiding mechanism for guiding and positioning the drill rod is installed above the correction mechanism. A centrally arranged supporting and limiting steel sleeve 3 which is used for the drill rod to pass through and supports and limits the drill rod is installed above the movable guiding mechanism.

[0046] After the pile driver is moved to the construction site, the pile driver is used to drill the designed pile foundation holes in sequence. In the specific embodiment, the drilling of one pile foundation hole is used for specific description:

[0047] The pile driver is used to drill an initial hole of the pile foundation to a certain depth for burying the casing 1 of the guiding and positioning device at the pile foundation point obtained by laying out the line, and the guiding and positioning device is hoisted to the top of the initial hole by a hoisting device, so that the casing 1 is centered in the initial hole, and the guiding and positioning device is slowly lowered so that the casing 1 is placed in the initial hole, and the casing 1 of the guiding and positioning device is adjusted so that the center of the casing 1 coincides with the center of the initial hole, and then the supporting pedestal 2 is anchored to the soil around the initial hole of the pile foundation to prevent the guiding and positioning device from shifting during the drilling process of the drill rod; and then the drill rod connected with the drill bit passes through the supporting and limiting steel sleeve 3, the movable guiding mechanism, and the correcting mechanism of the guiding and positioning device in sequence, and then enters the casing 1 buried in the initial hole of the pile foundation from the passage opening of the supporting pedestal 2 to reach the bottom of the initial hole of the pile foundation, and the pile driver is controlled to drive the drill rod to perform the drilling construction of the pile foundation hole through the guiding and positioning device.

[0048] In the design, the guiding and positioning device is additionally provided with a correction mechanism, which is used to position the drill rod in the drilling process of the foundation pile foundation, and realizes the correction in motion during the drilling process, so as to reduce the "accumulation" of the inclination of the drill rod during the drilling, and ensure the verticality of the pile foundation borehole hole; at the same time, the movable guiding mechanism designed on the guiding and positioning device can not only guide the drill rod in the drilling process of the foundation pile foundation, but also adjust the movable guiding mechanism according to the actual situation, limit the drill rod, and reduce the inclination of the drilling process; and, if the inclination of the drill rod exceeds the design permission during the drilling process, the active guiding mechanism can realize the alarm, so that the on-site construction personnel can timely find that the vertical inclination of the drill rod exceeds the standard, and timely "correct the deviation in motion", thereby ensuring the quality of the pile foundation hole, improving the efficiency of construction, saving construction time, and ensuring the progress requirements of construction. There is also the support cap 2 that is arranged to be a certain height above the pile foundation hole, which can prevent external water from entering the pile foundation hole that is drilled, and play the purpose of protecting the hole.

[0049] Example 2

[0050] On the basis of Example 1, Figure 4 and Figure 5As shown, the movable guiding mechanism provided in the guiding and positioning device includes a guiding and positioning plate 4, which is provided with a positioning channel which is coaxially connected with the channel opening provided in the supporting platform 2 and is used for the drill rod to pass through; at the same time, movable structures are respectively installed around the positioning channel of the guiding and positioning plate 4, and the movable structures are movably installed with positioning guide rollers 41, and several positioning guide rollers 41 are used to guide and position the drill rod passing through the positioning channel; the guiding and positioning plate 4 is connected and fixed to the supporting platform 2 by fixing plates around. The drill rod passes between several positioning guide rollers 41 of the design, and in order to adapt to drill rods of different diameters, the positioning guide rollers 41 connected to each other are driven to move by adjusting the various movable structures provided, so as to guide and limit the drill rod.

[0051] Further, such as Figure 6 and Figure 7As shown, the movable structure includes a movable support 42; the top end of the movable support 42 is used to connect with the support top plate 31, the support limiting steel sleeve 3 is installed and connected to the support top plate 31 and is arranged through the support top plate 31, and the support limiting steel sleeve 3 is arranged coaxially through the positioning channel for the smooth passage of the drill rod. At the same time, the bottom end of the movable support 42 is movable and passes through the guide positioning plate 4; the movable support 42 is hinged with a movable connecting rod 43 on one side close to the positioning channel through a hinge seat, and the end of the movable connecting rod 43 away from the movable support 42 is rotatably connected to the positioning guide roller 41 through a rotating shaft; at the same time, the end face of the movable connecting rod 43 close to the guide positioning plate 4 is hinged with a support rod 44 through a hinge seat, and the support rod 44 is hingedly set on the side close to the movable support 42, and the end of the support rod 44 away from the movable connecting rod 43 is connected to the guide positioning plate 4; in addition, a number of movable hydraulic jacks 5 are arranged between the guide positioning plate 4 and the supporting top plate 31; one end of the movable hydraulic jack 5 is connected to the guide positioning plate 4, and the other end of the movable hydraulic jack 5 is connected to the supporting top plate 31. It should be noted here that the movable hydraulic jack 5 can be added according to actual needs, so as to provide sufficient power to allow the supporting top plate 31 and the guide positioning plate 4 to "relatively move up and down". By controlling the "telescopic movement" of the movable hydraulic jack 5, the support top plate 31 is driven to move up and down relative to the guide positioning plate 4; the support top plate 31 moves relative to each other, driving the movable pillar 42 connected to the support top plate 31 to move, and the movable pillar 42 in turn drives the movable connecting rod 43 to move, thereby driving the positioning guide roller 41 to move; through the relative distance movement of these several positioning guide rollers 41, the relative distance between them is "adjusted" to limit the position of drill rods of different diameters. Since the positioning guide roller 41 and the movable connecting rod 43 are connected in rotation, even when the drill rod contacts the positioning guide roller 41, the drill rod can still be drilled smoothly. By adjusting the position of the support top plate 31 and the guide positioning plate 4 with the movable hydraulic jack 5, it is equivalent to being able to adjust the position of each positioning guide roller 41, and guide and position the drill rod passing between these positioning guide rollers 41.

[0052] Example 3

[0053] In the embodiment, one end of the movable connecting rod 43 away from the support rod 44 is hinged to an inclined movable hinge rod 45 through a hinge seat, and one end of the movable hinge rod 45 away from the movable connecting rod 43 is hinged to a movable slider 46 through a hinge seat, and the movable slider 46 is slidably arranged with the top of the support top plate 31; the hinge seat where the movable hinge rod 45 and the movable connecting rod 43 are hinged is arranged on the side away from the positioning guide roller 41. In addition, a movable shaft 461 is movably penetrated on the movable slider 46, and an alarm induction hoop 462 is connected to the end of the movable shaft 461 close to the positioning guide roller 41, and an induction relay 32 is arranged at the end of the movable shaft 461 away from the alarm induction hoop 462, and the induction relay 32 is installed and fixed on the bottom end surface of the support top plate 31, and an induction alarm 33 is installed on the top surface of the support top plate 31, and the induction alarm 33 is electrically connected with the induction relay 32. Since there are several movable structures, the number of alarm induction hoops 462 corresponding to the number of movable structures can be set according to the actual situation, so as to "alarm and warn" the direction and position of the drill rod tilting. It should be noted that the alarm induction hoop 462 is set in an arc shape and the distance from the end face close to the drill rod to the center of the drill rod is the same plane (coplanar) as the distance from the end face of the positioning guide roller 41 close to the drill rod to the center of the drill rod. In this way, when the drill rod tilts, the alarm induction hoop 462 on the tilted side of the drill rod can be moved in time to drive the movable shaft 461 to trigger the switch of the induction relay 32, so that the induction alarm 33 electrically connected to the induction relay 32 on this side sends out an "alarm prompt" to remind the on-site construction personnel that the tilt range of the drill rod exceeds the standard (exceeds the design allowance) and the direction of the tilt, that is, which side of the induction alarm 33 sends out an "alarm prompt", indicating that the drill rod tilts to the side that exceeds the standard.

[0054] To illustrate, the drill pipe is tilted in one direction:

[0055] During the drilling process, if the drill pipe tilts, the tilted side of the drill pipe contacts the alarm induction hoop 462 on that side, and the upper part of the tilted drill pipe contacts the support and limit steel sleeve 3, and the support and limit steel sleeve 3 is used to block and limit, preventing the drill pipe from continuing to tilt in that direction. At the same time, the alarm induction hoop 462 on that side is affected by the tilting force of the drill pipe, so that the alarm induction hoop 462 pushes the movable shaft 461 toward one end of the induction relay 32; when the movable shaft 461 approaches one end of the induction relay 32, the switch of the induction relay 32 is triggered to open, and the induction alarm 33 electrically connected to the induction relay 32 gives an alarm prompt.

[0056] In order to protect the alarm induction hoop 462 and enable the alarm induction hoop 462 to be "reset", a deformation spring 463 is provided between the movable slider 46 and the alarm induction hoop 462. The deformation spring 463 is passed through the movable shaft 461. One end of the deformation spring 463 is connected to the alarm induction hoop 462, and the other end of the deformation spring 463 is connected to the movable slider 46. Even when the drill rod is tilted, the alarm induction hoop 462 is pushed to drive the movable shaft 461 and the movable slider 46 to move relative to each other, and under the action of the deformation spring 463, protection is provided; and after the drill rod is adjusted back to the normal position, the alarm induction hoop 462 is reset by the deformation spring 463 and returns to the initial coplanar position with the positioning guide roller 41.

[0057] Further, in the embodiment, the top of the positioning channel is connected with a steel cylinder which is coaxial with the positioning channel and is centrally arranged, and the drill rod passes through the steel cylinder; the steel cylinder can play a guiding role, allowing the drill rod to pass through the steel cylinder, and then smoothly enter the channel opening of the support platform 2 below from the positioning channel, so as to pass through the casing 1 and enter the pile foundation hole. In addition, a plurality of guide movable rods 47 are respectively arranged around the steel cylinder, one end of the guide movable rod 47 is movable through the support top plate 31 and the end is connected to the limited end cap, and the other end of the guide movable rod 47 is connected to the guide positioning plate 4; high-strength reset springs 48 are respectively pierced on the guide movable rod 47, one end of the high-strength reset spring 48 is connected to the support top plate 31, and the other end of the high-strength reset spring 48 is connected to the guide positioning plate 4. In this way, when the support top plate 31 is driven by the movable hydraulic jack 5 to "relatively displace" toward the guide positioning plate 4, it plays a guiding and protective role.

[0058] In short, in a specific embodiment, by controlling the movable hydraulic jack 5 to drive the support top plate 31 to "relatively move downward" toward the guide positioning plate 4, the support top plate 31 drives the various movable pillars 42 connected thereto to move relatively downward, so that the movable pillars 42 drive the hinged movable connecting rods 43 to relatively "move in an arc" around the support rods 44, that is, the movable connecting rods 43 rotate relatively upward around the support rods 44, thereby achieving the relative "displacement" of the various support rods 44, driving the adjustment of the distance between the positioning guide rollers 41 connected to the ends of the support rods 44, so as to adapt to the limit guide of drill rods with different pipe diameters;

[0059] When the drill rod tilts during drilling, the drill rod comes into contact with the alarm induction hoop 462 on the tilted side, and the alarm induction hoop 462 on that side is affected by the tilting force of the drill rod, thereby pushing the movable shaft 461 toward one end of the induction relay 32 through the alarm induction hoop 462; when the movable shaft 461 approaches one end of the induction relay 32, the switch of the induction relay 32 is triggered to turn on, and the induction alarm 33 electrically connected to the induction relay 32 gives an alarm prompt, reminding the on-site construction personnel that the vertical inclination of the drill rod exceeds the standard and needs to be corrected. It should be noted here that the induction alarm 33 and the induction relay 32 are existing technologies, and the purpose of "contact induction alarm" can be achieved through existing electrical technology.

[0060] Example 4

[0061] If the sensor alarm 33 sounds an alarm, it means that a deviation correction adjustment is required. Figure 3As shown, the deviation correction mechanism provided in the guiding and positioning device includes a deviation correction adjustment hoop 63; one end face of the deviation correction adjustment hoop 63 is used to contact the drill pipe, and the other end face of the deviation correction adjustment hoop 63 is connected to a deviation correction adjustment hydraulic jack 62, and the deviation correction adjustment hydraulic jack 62 is installed and connected to a rotating adjustment disk 61, and the rotating adjustment disk 61 is rotatably connected to the support pedestal 2, that is, the specific implementation method can be: the bottom end of the rotating adjustment disk 61 is connected to a rotating gear 6, and the rotating gear 6 is rotatably connected to the support pedestal 2 through a bearing. At the same time, the rotating adjustment disk 61 is provided with a deviation correction channel for the drill pipe to pass through, and the deviation correction channel is coaxially connected with the casing 1. In the embodiment, the rotating gear 6 is arranged through the center, and the rotating gear 6 is connected with the inner ring of the bearing, that is, the rotating gear 6, the bearing, and the channel opening of the support pedestal 2 are coaxially connected for the drill pipe to pass through. By controlling the rotating gear 6, the correction adjustment hoop 63 set on the top of the rotating gear 6 is driven to the side where the drill pipe is tilted, and then by controlling the extension of the correction adjustment hydraulic jack 62, the correction adjustment hoop 63 on the side of the tilted drill pipe fixed on the rotating adjustment disk 61 is driven to lean against the drill pipe. As the drill pipe is drilled, the correction is gradually performed to achieve the purpose of "correction in motion". It should also be noted that the rotating gear 6 is used for rotation and is connected to the supporting platform 2. The rotating gear 6 can be manually adjusted to "rotate", or it can be driven to rotate by an existing motor through the "gear meshing" method, thereby adjusting the position of the correction adjustment hydraulic jack 62. Moreover, after the drilling of the pile foundation hole is completed, the guiding and positioning device can be moved and transported to another pile foundation hole position that needs to be drilled by a lifting device, and can be repeatedly used in a recycling manner, thereby saving costs and meeting the requirements of green construction; at the same time, the outer shapes of the support base 2, the guiding and positioning plate 4 and the supporting top plate 31 can be formed through the "similarity" structure, and the "precast concrete" of the three plates can be completed through the same assembly template structure, thereby saving template materials, construction time and other effects.

Claims

1. A bored pile drilling positioning device, comprising a casing arranged through the center and used for a pile driver drill rod to pass through, the top of the casing is connected to a support pedestal for contacting the ground around the pile foundation drilling hole, and the support pedestal is provided with a passage opening for the drill rod to pass through and communicate with the casing; It is characterized in that The top of the support platform is provided with a movably arranged deviation correction mechanism for correcting the drill rod; A movable guiding mechanism for guiding and positioning the drill rod is installed above the deviation correction mechanism; A support and limit steel sleeve is installed above the movable guide mechanism, which is used for the drill rod to pass through and support and limit the drill rod; the movable guide mechanism includes a guide positioning plate, and the guide positioning plate is provided with a positioning channel which is coaxially connected with the channel opening of the support platform and is used for the drill rod to pass through; The positioning channel of the guide positioning plate is respectively provided with movable structures, and the movable structures are movably connected with positioning guide rollers, and a plurality of the positioning guide rollers are used to guide and position the drill rod passing through the positioning channel; The guide positioning plate is connected and fixed to the supporting platform via a fixing plate on all sides; The movable structures all include movable pillars; The top end of the movable support is used to connect with the support top plate, the support limit steel sleeve is installed and connected to the support top plate and is arranged through the support top plate, and the support limit steel sleeve is arranged through the positioning channel coaxially; The bottom end of the movable support movably passes through the guide positioning plate; A movable connecting rod is hingedly connected to one side of the movable support close to the positioning channel through an articulated seat, and an end of the movable connecting rod away from the movable support is rotatably connected to the positioning guide roller through a rotating shaft; The end surface of the movable connecting rod close to the guide positioning plate is hinged to a support rod through a hinge seat, and the support rod is hingedly arranged on a side close to the movable support column, and the end of the support rod away from the movable connecting rod is connected to the guide positioning plate; One end of the movable connecting rod away from the supporting rod is hinged with an inclined movable hinge rod through a hinge seat, and one end of the movable hinge rod away from the movable connecting rod is hinged on the movable sliding block through the hinge seat, and the movable sliding block is slidably arranged with the top end of the supporting top plate; The hinge seat where the movable hinge rod and the movable connecting rod are hinged is arranged on a side away from the positioning guide roller; A movable shaft is movably provided on the movable slider, an end of the movable shaft close to the positioning guide roller is connected to an alarm induction hoop, an end of the movable shaft away from the alarm induction hoop is provided with an induction relay, the induction relay is fixedly mounted on the bottom end surface of the supporting top plate, an induction alarm is installed on the top surface of the supporting top plate, and the induction alarm is electrically connected to the induction relay; The drill pipe tilts, and the tilted side of the drill pipe comes into contact with the alarm induction hoop, which pushes the movable shaft toward one end of the induction relay. When the movable shaft approaches one end of the induction relay, the switch of the induction relay is triggered to open, and the induction alarm connected to the induction relay gives an alarm prompt. A deformation spring is arranged between the movable slider and the alarm induction hoop, the deformation spring is passed through the movable shaft, one end of the deformation spring is connected to the alarm induction hoop, and the other end of the deformation spring is connected to the movable slider; A steel cylinder is installed and connected to the top of the positioning channel, which is coaxial with and centrally arranged with the positioning channel, and the drill rod passes through the steel cylinder; A plurality of guide movable rods are respectively arranged around the steel cylinder, one end of the guide movable rod movably passes through the supporting top plate and the end is connected to a limited end cap, and the other end of the guide movable rod is connected to the guide positioning plate; The guide movable rods are respectively provided with high-strength return springs, one end of the high-strength return spring is connected to the support top plate, and the other end of the high-strength return spring is connected to the guide positioning plate.

2. A bored pile drilling positioning device according to claim 1, characterized in that: A plurality of movable hydraulic jacks are arranged between the guide positioning plate and the supporting top plate; One end of the movable hydraulic jack is connected to the guide positioning plate, and the other end of the movable hydraulic jack is connected to the supporting top plate.

3. A bored pile drilling positioning device according to claim 1, characterized in that: The deviation correction mechanism includes a deviation correction adjustment hoop; One end surface of the correction adjustment hoop is used to contact the drill pipe, and the other end surface of the correction adjustment hoop is connected to a correction adjustment hydraulic jack, and the correction adjustment hydraulic jack is installed and connected to a rotating adjustment disk, and the rotating adjustment disk is rotatably connected to the supporting platform; The rotary adjustment disk is provided with a deviation correction channel for the drill rod to pass through, and the deviation correction channel is coaxially connected with the casing.

4. A bored pile drilling positioning device according to claim 3, characterized in that: The bottom end of the rotary adjustment disk is connected to a rotary gear, and the rotary gear is rotatably connected to the supporting platform through a bearing; The rotating gear is arranged through the center, and the rotating gear and the inner ring of the bearing are arranged through the center for the drill rod to pass through. The rotating gear, the bearing, and the passage opening of the supporting platform are arranged through the center of the axis.

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