Pile foundation construction positioning device in high altitude slope areas

Abstract

The present invention discloses a positioning device for pile foundation construction in high-altitude slope-type areas, which relates to the field of slope-type foundation pile foundations, including a guide sliding seat installed on a pile driver, the guide sliding seat is provided with a sliding seat passageway for the pile driver drill rod to pass through; the top of the guide sliding seat is provided with a movable limiting mechanism for limiting the pile driver drill rod passing through the sliding seat passageway. The bottom of the guide sliding seat is provided with a movable adjusting mechanism for positioning and guiding the pile driver drill rod passing through the sliding seat passageway. The positioning device is provided with a movable adjusting mechanism, through which different rod diameters of the drill rod of the guiding and positioning pile driver can be achieved; and the movable limiting mechanism provided can support and limit the inclination of the drill rod during the drilling process of the pile driver drill rod; and the "alarm" of the movable limiting mechanism can be used in time to find out whether the inclination direction and inclination of the pile driver drill rod exceed the standard, so that the deviation correction adjustment can be carried out in time to meet the quality requirements of the drilling hole.

Description

Technical Field

[0001] The invention relates to the field of foundation pile construction, in particular to a pile foundation construction positioning device in a high-altitude slope area. Background Art

[0002] Construction in high altitude areas, especially for roads, bridges and other projects, faces the following construction technology and other problems:

[0003] 1. Climate impact: High-altitude areas have dramatic climate changes, large temperature differences, and uneven precipitation, which may lead to construction delays and changes in material properties;

[0004] 2. Construction equipment restrictions: Due to the thin oxygen in high altitude areas, the performance of construction equipment may be affected. It is necessary to select equipment suitable for high altitude environments;

[0005] 3. Complex geological conditions: The geological conditions in high-altitude areas are often complex, and there may be geological disasters such as landslides and mud-rock flows. Detailed geological surveys are required before construction;

[0006] 4. Foundation settlement problem: The foundation settlement problem in high-altitude areas is more prominent, and reasonable foundation design and reinforcement measures are required to prevent safety hazards caused by settlement;

[0007] 5. Adaptability of construction workers: High altitude areas require higher physical fitness of construction workers, and they need to take preventive and countermeasure measures against altitude sickness;

[0008] Therefore, it brought many technical problems to the construction.

[0009] Especially in sloped areas, in order to ensure the stability and safety of the foundations of bridges, roads, etc. under construction, it is necessary to pass the bottom of these pile foundations through the sliding surface of the "slope area" to the rock and soil layer below, so as to resist the sliding of the foundation during construction. When the existing pile driver is working in these sloped areas, when the "drill bit" of the pile driver (rotary drilling rig) encounters the slope of the sloped area, the drill bit is subjected to "uneven" force, causing the drill bit to tilt along the slope of the sloped area, thereby causing the drilling hole to tilt, and ultimately causing the quality (verticality) of the drilling hole of the foundation pile foundation to fail to meet the requirements. Although there are methods of burying casings at the top of the pile foundation holes and installing "guide devices" on the pile driver, these two "guide positioning" methods are generally used in soft foundations or geological conditions with relatively flat geological surface stratification; in high-altitude and sloped areas, these two methods cannot meet the requirements of pile foundation construction. Summary of the invention

[0010] The objective of the present invention is achieved through the following technical solutions:

[0011] A positioning device for pile foundation construction in high-altitude slope areas, comprising a guide sliding seat installed on a pile driver for lifting and lowering, wherein the guide sliding seat is provided with a sliding seat passage opening for the pile driver drill rod to move through;

[0012] The top end of the guide sliding seat is provided with a movable limiting mechanism for limiting the position of the pile driver drill rod passing through the sliding seat passage opening;

[0013] The bottom end of the guide sliding seat is provided with a movable adjustment mechanism for positioning and guiding the pile driver drill rod passing through the sliding seat passage opening;

[0014] The movable adjustment mechanism includes a plurality of guide positioning arc plates, which are movably arranged around the bottom end of the sliding seat passage opening of the guide sliding seat, and the plurality of guide positioning arc plates are relatively movable and used for positioning and guiding the drill rod of the slave pile driver;

[0015] The guide and positioning arc plates are respectively connected with driving mechanisms for driving the guide and positioning arc plates to slide along the bottom end surface of the guide sliding seat;

[0016] The driving mechanisms all include a driving connecting rod and a driving movable rod;

[0017] One end of the driving connecting rod is hinged to an end face of the guiding positioning arc plate away from the sliding seat passage through a hinge seat, and the other end of the driving connecting rod is hinged to a limited sliding block through a hinge seat, and the limited sliding block is slidably arranged with the top surface of the movable connecting seat, and the movable connecting seat is connected to the guiding sliding seat through a plurality of connecting steel pipes;

[0018] The movable connecting seat is provided with a connecting seat passage, the connecting seat passage is coaxially connected with the sliding seat passage opening, the connecting seat passage is used for the pile driver drill rod to pass through, and the movable connecting seat is installed on the pile driver by means of a guide rail.

[0019] The middle part of the driving connecting rod is hinged to one end of the driving movable rod through a hinge seat. The connecting seat channel opened by the movable connecting seat is surrounded by movable blind holes corresponding to the driving connecting rod. The end of the driving movable rod away from the driving connecting rod is hinged to the power mechanism used to drive the driving connecting rod to move.

[0020] Preferably, the power mechanism comprises a hydraulic cylinder disposed centrally;

[0021] The bottom end of the connection seat passage opened by the movable connection seat is connected with a guide steel cylinder, the other end of the guide steel cylinder passes through the through-hole cavity of the hydraulic cylinder, and the outer wall of the guide steel cylinder is welded and fixed to the inside of the through-hole cavity of the hydraulic cylinder;

[0022] The output end rod of the hydraulic cylinder is connected with a movable sleeve for driving the lifting movement through the hydraulic cylinder, and the movable sleeve is movably mounted on the guide steel cylinder;

[0023] One end of the driving movable rod away from the driving connecting rod is hinged to the outer wall of the movable sleeve through a hinge seat.

[0024] Preferably, the top of the guiding and positioning arc plate is connected to a top sliding block of the arc plate, and the guiding and positioning arc plate is slidably arranged with the bottom end surface of the guiding sliding seat through the top sliding block of the arc plate;

[0025] The bottom ends of the guiding and positioning arc plates are connected with arc plate bottom end sliding blocks, and the guiding and positioning arc plates are slidably arranged through the arc plate bottom end sliding blocks and the top end surface of the movable connection seat.

[0026] Preferably, the movable limiting mechanism comprises a movable steel sleeve and a movable steel inner sleeve which are arranged through the center;

[0027] The movable steel inner sleeve is movably arranged in the movable steel sleeve;

[0028] The movable steel sleeve has one end near the guide sliding seat connected to a movable ball head which is connected to the movable steel sleeve. The movable ball head is movably connected to the ball head seat. The ball head seat is installed in the sliding seat passage opening of the guide sliding seat, and the movable ball head is connected to the sliding seat passage opening.

[0029] The pile driver drill rod passes through the movable steel inner casing, passes through the movable ball head and the ball head seat, and passes through the passage opening of the sliding seat.

[0030] Preferably, a plurality of movable pins are connected around the outer wall of the movable steel inner sleeve, and one end of the movable pin away from the movable steel inner sleeve can be movably passed through the side wall of the movable steel sleeve;

[0031] The movable pin shaft is sleeved with a sleeve protection spring, and the sleeve protection spring is arranged between the movable steel inner sleeve and the movable steel sleeve. One end of the sleeve protection spring is connected to the outer wall of the movable steel inner sleeve, and the other end of the sleeve protection spring is connected to the inner wall of the movable steel sleeve.

[0032] Preferably, the movable steel sleeve is movably inserted into the limiting steel sleeve, and the bottom end of the limiting steel sleeve is connected and fixed to the guide sliding seat;

[0033] A high-strength return spring is provided in the gap between the movable steel sleeve and the limiting steel sleeve, and the high-strength return spring is sleeved on the movable steel sleeve, one end of the high-strength return spring is connected to the outer wall of the movable steel sleeve, and the other end of the high-strength return spring is connected to the inner wall of the limiting steel sleeve.

[0034] Preferably, the top outer wall of the movable steel inner sleeve is connected to a limited circular ring hoop, the top outer wall of the limited steel sleeve is connected to a movable connecting circular steel plate, a plurality of movable sensing structures are arranged around the limited circular ring hoop, and the movable sensing structures are movably installed and connected to the top surface of the movable connecting circular steel plate;

[0035] The movable sensing structure comprises a movable hinge rod and a movable sensing sliding seat;

[0036] The limiting circular ring hoop is provided with connecting grooves corresponding to the movable hinge rod. One end of the movable hinge rod is rotatably connected to the connecting groove of the limiting circular ring hoop through a pin shaft. The other end of the movable hinge rod is hinged to the top end of the movable sensing sliding seat through a hinge seat. The bottom end of the movable sensing sliding seat is connected to a movable sliding block. The top surface of the movable connecting round steel plate is provided with a sliding groove. The movable sliding block is placed in the sliding groove and is slidably adapted to the sliding groove.

[0037] Preferably, a movable sensing rod is provided in the slide groove opened on the top surface of the movable connecting round steel plate, one end of the movable sensing rod is connected to the movable sliding block, and the other end of the movable sensing rod movably passes through the limit block, and the limit block is installed and connected in the slide groove opened on the top surface of the movable connecting round steel plate and is away from the side of the limit circular hoop;

[0038] The movable sensing rods are respectively provided with inductive deformation springs, and the inductive deformation springs are arranged between the limit block and the movable sliding block, one end of the inductive deformation spring is connected to the limit block, and the other end of the inductive deformation spring is connected to the movable sliding block;

[0039] An alarm sensor is respectively installed and connected to one end of the slide groove on the top surface of the movable connecting round steel plate away from the limiting circular ring hoop, and the alarm sensor is electrically connected to the operation control system of the pile driver;

[0040] When the pile driver's drill rod is tilted, the tilted end face of the pile driver's drill rod abuts against the movable steel inner casing, and the movable steel inner casing moves, driving the limiting circular ring hoop connected to the top end of the movable steel inner casing to move, thereby driving the limiting circular ring hoop on the tilted side to drive the movable slider to slide along the slide groove provided on the top end face of the movable connected round steel plate, and the movable sensing rod is driven by the movable slider to move toward one end of the alarm sensor, and the alarm sensor is triggered to start through the movement of the movable sensing rod, which is electrically connected to the pile driver's operation control system, triggering the alarm of the pile driver's operation control system to sound an alarm, reminding the construction personnel that the tilt direction and tilt degree of the pile driver's drill rod exceed the standard.

[0041] Preferably, a bottom end supporting and resisting structure is provided at one end of the guide steel cylinder away from the movable connection seat;

[0042] The bottom end support and blocking structure comprises a bottom end support and limiting steel cylinder which is arranged through the center. The bottom end support and limiting steel cylinder is arranged coaxially with the guide steel cylinder for the pile driver drill rod to pass through.

[0043] The outer wall of the guide steel cylinder is provided with a through-set fixed steel sleeve, and the top of the fixed steel sleeve is fixedly connected to the bottom of the outer wall of the guide steel cylinder;

[0044] An elastic protective member is arranged in the hollow cavity of the fixed steel sleeve, and the bottom end supporting and limiting steel cylinder is connected with the guide steel cylinder through the elastic protective member.

[0045] Preferably, the elastic protection member comprises a bottom limit protection spring, and the bottom limit protection spring is arranged in the gap between the fixed steel sleeve and the bottom support limit steel cylinder;

[0046] One end of the bottom limit protection spring is connected to the outer wall of the bottom support limit steel cylinder, and the other end of the bottom limit protection spring is connected to the outer wall of the guide steel cylinder;

[0047] The outer wall of one end of the bottom support and limit steel cylinder away from the guide steel cylinder is connected with a bottom support and limit round steel plate, and the bottom support and limit round steel plate is used to abut against the fixed steel sleeve, and the bottom support and limit steel cylinder is supported by the fixed steel sleeve.

[0048] The beneficial effects of the present invention are as follows: the purpose of the present invention is to provide a positioning device for pile foundation construction in high-altitude slope areas, the positioning device is used in high-altitude slope areas, and is used to guide and position the pile driver drill rod of the pile foundation; the positioning device is a design improvement of the existing "guiding positioning equipment" installed on the pile driver, so that it can be more automated, thereby facilitating the control of guiding and positioning the pile driver drill rod. The positioning device is provided with an active adjustment mechanism, through which different rod diameters of the drill rod of the guiding positioning pile driver can be achieved; and the active limiting mechanism provided can support and limit the inclination of the drill rod during the drilling process of the pile driver drill rod; and the "alarm" of the active limiting mechanism can be used in time to find out whether the inclination direction and inclination of the pile driver drill rod exceed the standard (beyond the design allowable range), and then timely correct the deviation and adjust to meet the quality requirements of the drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic diagram of the overall connection effect of the pile foundation construction positioning device in high-altitude slope areas of the present invention;

[0050] Figure 2 This is an exploded schematic diagram of the connection structure of the pile foundation construction positioning device in high-altitude slope areas of the present invention;

[0051] Figure 3It is a schematic diagram of the overall connection effect between the movable limiting mechanism and the guide sliding seat of the pile foundation construction positioning device in the high-altitude slope area of ​​the present invention;

[0052] Figure 4 It is an exploded schematic diagram of the connection structure of the movable limiting mechanism and the guide sliding seat of the pile foundation construction positioning device in high-altitude slope areas of the present invention;

[0053] Figure 5 This is a schematic diagram of the connection structure of the movable limiting mechanism of the pile foundation construction positioning device in high-altitude slope areas of the present invention;

[0054] Figure 6 It is an exploded schematic diagram of the connection structure of the movable limiting mechanism of the positioning device for pile foundation construction in high-altitude slope areas of the present invention;

[0055] Figure 7 This is a schematic diagram of the connection structure of the movable connection seat of the pile foundation construction positioning device in high-altitude slope areas of the present invention;

[0056] Figure 8 This is an exploded schematic diagram of the connection structure of the movable connection seat of the pile foundation construction positioning device in high-altitude slope areas of the present invention;

[0057] Fig. 9 This is a schematic diagram of the connection structure of the bottom support and resistance structure of the pile foundation construction positioning device in high-altitude slope areas of the present invention;

[0058] Fig.10 This is a schematic diagram of the explosion of the bottom support and resistance structure connection structure of the pile foundation construction positioning device in high-altitude slope areas of the present invention;

[0059] In the figure, 1-guide sliding seat, 2-guide positioning arc plate, 3-movable connecting seat, 4-limiting steel sleeve, 5-fixed steel sleeve, 6-movable connecting round steel plate, 21-driving connecting rod, 22-driving movable rod, 23-limiting sliding block, 24-hydraulic cylinder, 25-movable sleeve, 31-guide steel cylinder, 41-movable steel sleeve, 42-movable steel inner sleeve, 43-high-strength reset spring, 51-bottom support limiting steel cylinder, 52-bottom limit protection spring, 61-movable hinged rod, 62-movable sensing sliding seat, 63-movable sensing rod, 64-alarm sensor, 411-movable ball head, 421-movable pin shaft, 422-sleeve protection spring, 423-limiting circular ring hoop, 511-bottom support limiting round steel plate. DETAILED DESCRIPTION

[0060] 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.

[0061] Example 1

[0062] like Figures 1 to 10 As shown, the positioning device is used in high-altitude slope areas to guide and position the pile driver drill rod of the pile foundation; the positioning device is a design improvement of the existing "guiding and positioning equipment" installed on the pile driver, making it more automated, so as to facilitate the control of guiding and positioning the pile driver drill rod. The positioning device is provided with a movable adjustment mechanism, through which different rod diameters of the drill rod of the pile driver can be guided and positioned; and the movable limit mechanism can support and limit the inclination of the drill rod during the drilling process of the pile driver drill rod; and the "alarm" of the movable limit mechanism can be used to timely detect whether the inclination direction and inclination of the pile driver drill rod exceed the standard, that is, whether the drill hole or the drill rod exceeds the design allowable verticality range.

[0063] In an embodiment, the positioning device includes a guide sliding seat 1 installed on the pile driver for lifting and lowering, and the guide sliding seat 1 is provided with a sliding seat passage opening for the pile driver drill rod to move through; the guide sliding seat 1 is installed on the pile driver by the prior art, so that the guide sliding seat 1 can be raised and lowered by the pile driver control system, thereby adjusting the guide sliding seat 1 to a suitable position height to guide and position the pile driver drill rod. At the same time, the top of the guide sliding seat 1 is provided with an active limiting mechanism for limiting the pile driver drill rod passing through the sliding seat passage opening. By adjusting the active adjustment mechanism, different rod diameters of the drill rod of the guiding and positioning pile driver can be achieved.

[0064] Among them, Figure 7 and Figure 8 As shown, the movable adjustment mechanism includes a plurality of guiding and positioning arc plates 2, which are movably arranged around the bottom end of the sliding seat passage opening of the guiding sliding seat 1, and the plurality of guiding and positioning arc plates 2 are relatively movable, and are used to position and guide the drill rod of the pile driver; the guiding and positioning arc plates 2 are respectively connected with driving mechanisms for driving the guiding and positioning arc plates 2 to slide along the bottom end surface of the guiding sliding seat 1; by controlling the activities of each driving mechanism, the driving mechanism drives the respectively connected guiding and positioning arc plates 2 to move relatively, so that the relative "arc size" between each guiding and positioning arc plate 2 meets the size of the drill rod of the pile driver passing through the sliding seat passage opening, thereby adjusting the movable adjustment mechanism to best adapt to the specific size range of the drill rod of the pile driver.

[0065] In the embodiment, the driving mechanism includes a driving connecting rod 21 and a driving movable rod 22; one end of the driving connecting rod 21 is hinged to an end face of the guide positioning arc plate 2 away from the sliding seat passage opening through a hinge seat, and the other end of the driving connecting rod 21 is hinged to a limited sliding block 23 through a hinge seat, and the limited sliding block 23 is slidably arranged on the top surface of the movable connecting seat 3, and the movable connecting seat 3 is connected to the guide sliding seat 1 through a plurality of connecting steel pipes; the movable connecting seat 3 is provided with a connecting seat channel, and the connecting seat channel is coaxially connected with the sliding seat passage opening, and the connecting seat passage is coaxially connected with the sliding seat passage opening. The channel is used for the pile driver drill rod to pass through, and the movable connection seat 3 is installed on the pile driver through the guide rail lifting; and the middle part of the driving connecting rod 21 is hinged with one end of the driving movable rod 22 through the hinge seat, and the connecting seat channel opened by the movable connection seat 3 is provided with movable blind holes corresponding to the driving connecting rod 21, that is, the connecting seat channel of the movable connection seat 3 is provided with movable blind holes corresponding to the number of the driving connecting rod 21; the end of the driving movable rod 22 away from the driving connecting rod 21 is hinged on the power mechanism used to drive the driving connecting rod 21 to move. By controlling the movement of the power mechanism set, each driving movable rod 22 is driven to "move synchronously", and then the driving movable rod 22 drives the driving movable rod 22 to "move synchronously relative to each other" through the driving connecting rod 21 connected guide positioning arc plate 2, thereby realizing "positioning" of the center point of each guide positioning arc plate 2, so that when the pile driver drill rod passes through the movable adjustment mechanism, the pile driver drill rod is in the center position, ensuring the accuracy of the drilling position.

[0066] Example 2

[0067] On the basis of Example 1, in order to realize the relative movement of the guiding and positioning arc plate 2 that controls the movable adjusting mechanism, the power mechanism of the arrangement includes a hydraulic cylinder 24 that is arranged through the center; the bottom end of the connecting seat channel opened by the movable connecting seat 3 is connected with a guide steel cylinder 31, and the other end of the guide steel cylinder 31 passes through the through cavity of the hydraulic cylinder 24, and the outer wall of the guide steel cylinder 31 is welded and fixed to the inside of the through cavity of the hydraulic cylinder 24; the output end rod body of the hydraulic cylinder 24 is connected with a movable sleeve 25 for driving the lifting and lowering activities through the hydraulic cylinder 24, and the movable sleeve 25 is movably sleeved on the guide steel cylinder 31; and, the end of the driving movable rod 22 away from the driving connecting rod 21 is hinged to the outer wall of the movable sleeve 25 through a hinge seat. The hydraulic cylinder 24 is installed and fixed on the guide steel cylinder 31 and is coaxially arranged with the guide steel cylinder 31. By controlling the extension and retraction of the rod body of the hydraulic cylinder 24, the movable sleeve 25 connected to the end of the rod body of the hydraulic cylinder 24 and movably sleeved on the guide steel cylinder 31 is driven to "move up and down" along the guide steel cylinder 31, thereby synchronously driving the driving movable rod 22 hingedly connected to the outer wall of the movable sleeve 25 to move through the movable blind hole provided in the movable connecting seat 3, driving the limiting sliding block 23 connected to one end of the driving connecting rod 21 to "limitedly slide" along the surface of the movable connecting seat 3, thereby driving the guiding positioning arc plate 2 connected to the other end of the driving connecting rod 21 to move relative to each other between the guiding sliding seat 1 and the movable connecting seat 3, so as to adjust the relative distance between each guiding positioning arc plate 2, so as to meet the needs of drill rods with different diameters. In addition, for further stability, the guiding and positioning arc plate 2 is allowed to move relatively between the guiding sliding seat 1 and the movable connecting seat 3; the top of the guiding and positioning arc plate 2 is connected with an arc plate top sliding block, and the guiding and positioning arc plate 2 is slidably arranged with the bottom end surface of the guiding sliding seat 1 through the arc plate top sliding block; the bottom of the guiding and positioning arc plate 2 is connected with an arc plate bottom sliding block, and the guiding and positioning arc plate 2 is slidably arranged with the top end surface of the movable connecting seat 3 through the arc plate bottom sliding block. Thus, the drill rod of the pile driver is finally guided and positioned by adjusting the movable adjustment mechanism.

[0068] Example 3

[0069] In the embodiment, when the drill bit of the pile driver encounters the slope structure in the slope area, the drill bit is unevenly stressed, causing the drilling direction of the drill bit to tilt, thereby causing the drill rod to tilt. When the drill rod tilts, the upper drill rod on the slope surface tilts toward the side where the drill bit tilts. Since the pile foundation hole drilled is generally deep, even if the drill bit tilts "slightly", the drill rod on the ground will also tilt significantly. Therefore, the drill rod on the ground where the hole is drilled and the drill rod passing through the positioning device installed by the pile driver tilts toward the side where the drill bit tilts. On the side where the drill rod on the ground tilts, the upper part of the drill rod passing through the positioning device will abut against the movable limiting mechanism set at the top end of the guide sliding seat 1 of the positioning device, and the lower part of the drill rod passing through the positioning device will abut against the bottom end support and blocking structure set at the bottom end of the guide sliding seat 1 of the positioning device. Through these two "structures", the tilted drill rod is limited and supported to prevent it from tilting further.

[0070] In order to prevent the drill rod of the limited pile driver from exceeding the allowed range during drilling, that is, exceeding the designed vertical range, the top of the guide sliding seat 1 is provided with a movable limiting mechanism for limiting the drill rod of the pile driver passing through the sliding seat passage. Figures 3 to 6 As shown, the movable limiting mechanism of the arrangement includes a movable steel sleeve 41 and a movable steel inner sleeve 42 which are centrally arranged; the movable steel inner sleeve 42 is movably arranged in the movable steel sleeve 41; one end of the movable steel sleeve 41 close to the guide sliding seat 1 is connected with a movable ball head 411 which is arranged through the movable steel sleeve 41, and the movable ball head 411 is movably connected to the ball head seat, and the ball head seat is installed in the sliding seat channel opening opened in the guide sliding seat 1, and the movable ball head 411 is arranged through the sliding seat channel opening. At the same time, a number of movable pins 421 are connected around the outer wall of the movable steel inner sleeve 42, and one end of the movable pin 421 away from the movable steel inner sleeve 42 can be movably passed through the side wall of the movable steel sleeve 41; a sleeve protection spring 422 is sleeved on the movable pin 421, and the sleeve protection spring 422 is arranged between the movable steel inner sleeve 42 and the movable steel sleeve 41, one end of the sleeve protection spring 422 is connected to the outer wall of the movable steel inner sleeve 42, and the other end of the sleeve protection spring 422 is connected to the inner wall of the movable steel sleeve 41. In addition, the movable steel sleeve 41 is movably inserted into the limiting steel sleeve 4, and the bottom end of the limiting steel sleeve 4 is connected and fixed to the guide sliding seat 1; a high-strength return spring 43 is provided in the gap between the movable steel sleeve 41 and the limiting steel sleeve 4, and the high-strength return spring 43 is sleeved on the movable steel sleeve 41, one end of the high-strength return spring 43 is connected to the outer wall of the movable steel sleeve 41, and the other end of the high-strength return spring 43 is connected to the inner wall of the limiting steel sleeve 4.

[0071] Further, such as Fig. 9 and Fig.10 As shown, a bottom support and resisting structure is provided at one end of the guide steel cylinder 31 away from the movable connecting seat 3; the bottom support and resisting structure includes a bottom support and limiting steel cylinder 51 arranged through the center, and the bottom support and limiting steel cylinder 51 is arranged coaxially with the guide steel cylinder 31 for the pile driver drill rod to pass through; a fixed steel sleeve 5 is arranged through the center on the outer wall of the guide steel cylinder 31, and the top of the fixed steel sleeve 5 is fixedly connected to the bottom of the outer wall of the guide steel cylinder 31; an elastic protective member is provided in the hollow cavity of the fixed steel sleeve 5, and the bottom support and limiting steel cylinder 51 is connected to the guide steel cylinder 31 through the elastic protective member. The elastic protection component includes a bottom limit protection spring 52, which is arranged in the gap between the fixed steel sleeve 5 and the bottom support limit steel cylinder 51; one end of the bottom limit protection spring 52 is connected to the outer wall of the bottom support limit steel cylinder 51, and the other end of the bottom limit protection spring 52 is connected to the outer wall of the guide steel cylinder 31; the outer wall of one end of the bottom support limit steel cylinder 51 away from the guide steel cylinder 31 is connected with a bottom support limit round steel disk 511, and the bottom support limit round steel disk 511 is used to lean against the fixed steel sleeve 5, so as to support the bottom support limit steel cylinder 51 through the fixed steel sleeve 5.

[0072] Let's take the inclination of one side of the drill pipe as an example:

[0073] The pile driver drill rod and drill bit pass through the movable steel inner casing 42 in sequence, through the movable ball head 411 and the ball head seat, and through the sliding seat passage opening, through the guide steel cylinder 31, and then through the bottom support limit steel cylinder 51, through the ground pile foundation hole opening, and enter the pile foundation hole; when the drill bit of the drill rod encounters the "slope surface" under the stratum, the drill bit is unevenly stressed and tilted, and the drill rod part that leaks on the ground and passes through the positioning device will also tilt, and this part of the drill rod will continue to tilt toward the tilted side of the drill bit;

[0074] The upper part of the drill rod passing through the positioning device contacts the movable steel inner casing 42 under the "tilting force", thereby driving the movable steel inner casing 42 to tilt, driving the movable steel casing 41 connected to the outer wall of the movable steel inner casing 42 to tilt, and abut against the limiting steel casing 4, and the upper part of the drill rod passing through the positioning device is supported and limited by the limiting steel casing 4;

[0075] At the same time, the lower part of the drill rod of the positioning device contacts the bottom support and limit steel cylinder 51 under the "tilting force". Since the bottom support and limit steel cylinder 51 is "flexibly connected" to the guide steel cylinder 31 through the bottom limit protection spring 52, the bottom support and limit steel cylinder 51 will abut against the fixed steel sleeve 5 when it is subjected to the "tilting force" and in the "flexibly connected" state of the bottom limit protection spring 52, and the lower part of the drill rod of the positioning device is supported, resisted and limited by the fixed steel sleeve 5.

[0076] Thus, the positioning device can be used to prevent the drill rod from further tilting.

[0077] Furthermore, in the embodiment, since the movable steel inner casing 42 and the movable steel casing 41 are “elastically limited and protected” on all sides thereof by casing protection springs 422, rigid contact between the movable steel inner casing 42 and the movable steel casing 41 is avoided, thereby avoiding the consequences of the drill rod being “stuck” or damaged due to rigid contact during the drilling process of the drill rod; at the same time, the movable steel casing 41 is also “flexibly and actively connected” to the guide sliding seat 1 through a “ball joint structure”, and can well adapt to the “tilt” (tilt in different directions) of the drill rod. In addition, the bottom support and limit steel cylinder 51 and the guide steel cylinder 31 are "flexibly connected" through the bottom limit protection spring 52, which can also avoid the rigid contact between the bottom support and limit steel cylinder 51 and the fixed steel sleeve 5, thereby avoiding the drill rod being "stuck" or damaged due to the rigid contact during the drilling process; and the radius of a circle of bottom support and limit round steel disk 511 connected to the bottom outer wall of the bottom support and limit steel cylinder 51 is larger than the radius of the fixed steel sleeve 5, which can increase the relative contact area between the bottom support and limit steel cylinder 51 and the fixed steel sleeve 5, thereby stably supporting the drill rod.

[0078] Example 4

[0079] Based on Example 3, in order to enable the pile driver operator or construction worker to promptly discover that the drill rod is tilted beyond the standard (that is, the verticality exceeds the design allowable range), a limiting circular ring hoop 423 is connected to the top outer wall of the movable steel inner casing 42, and the top outer wall of the limiting steel casing 4 is connected to a movable connecting round steel plate 6. A plurality of movable sensing structures are arranged around the limiting circular ring hoop 423, and the movable sensing structures are movably installed and connected to the top surface of the movable connecting round steel plate 6.

[0080] In the embodiment, the movable sensing structure of the arrangement includes a movable hinge rod 61 and a movable sensing sliding seat 62; connecting groove openings corresponding to the movable hinge rod 61 are provided around the limiting circular ring hoop 423, one end of the movable hinge rod 61 is rotatably connected to the connecting groove opening of the limiting circular ring hoop 423 by rotating through a pin shaft, the other end of the movable hinge rod 61 is hinged to the top end of the movable sensing sliding seat 62 through a hinge seat, the bottom end of the movable sensing sliding seat 62 is connected to a movable sliding block, and a sliding groove is provided on the top surface of the movable connecting round steel plate 6, the movable sliding block is placed in the sliding groove, and is slidably adapted to the sliding groove. In addition, a movable sensing rod 63 is arranged in the chute opened on the top surface of the movable connecting round steel plate 6, one end of the movable sensing rod 63 is connected to the movable slider, and the other end of the movable sensing rod 63 is movable through the limit block, and the limit block is installed and connected in the chute opened on the top surface of the movable connecting round steel plate 6 and is away from the side of the limit ring hoop 423; the movable sensing rod 63 is respectively penetrated with an induction deformation spring, and the induction deformation spring is arranged between the limit block and the movable slider, one end of the induction deformation spring is connected to the limit block, and the other end of the induction deformation spring is connected to the movable slider; the chute opened on the top surface of the movable connecting round steel plate 6 is respectively installed and connected to one end away from the limit ring hoop 423, and the alarm sensor 64 is electrically connected to the operation control system of the pile driver. It should be noted here that the alarm sensor 64 is a prior art, and its "induction alarm" function can be realized through the existing electrical technology, so in the embodiment, it is not further elaborated in detail.

[0081] When the pile driver drill rod is tilted, the tilted end face of the pile driver drill rod abuts against the movable steel inner sleeve 42, and the movable steel inner sleeve 42 moves, driving the limiting circular ring hoop 423 connected to the top end of the movable steel inner sleeve 42 to move, thereby driving the limiting circular ring hoop 423 on the tilted side to drive the movable sensing sliding seat 62 to slide relatively on the top end face of the movable connected round steel plate 6; the movement of the movable sensing sliding seat 62 will drive the movable sliding block installed and connected to the bottom end face of the movable sensing sliding seat 62 to slide along the sliding groove provided on the top end face of the movable connected round steel plate 6, and drive the movable sensing rod 63 to move toward one end of the alarm sensor 64 through the movable sliding block, and the movable sensing rod 63 moves; when the movable sensing rod 63 moves to the appropriate position When the active sensing rod 63 is set, the alarm sensor 64 is triggered to start (the alarm sensor 64 is sensed and started), and the alarm sensor 64 is electrically connected to the operation control system of the pile driver, triggering the alarm of the operation control system of the pile driver to sound an alarm. Since a plurality of alarm sensors 64 with different "orientations" are provided, and each alarm sensor 64 is electrically connected to a plurality of alarms of the operation control system of the pile driver, respectively, different alarms indicate that the alarm sensors 64 with different orientations are "started", thereby judging the direction of the drill rod tilt, thereby reminding the construction personnel that the tilt direction and tilt degree of the pile driver drill rod exceed the standard (the vertical degree exceeds the design allowable range), and then making correction adjustments according to the tilt direction.

[0082] Thus, through the positioning device of this design, different diameters of the drill rod of the guiding positioning pile driver can be achieved through the movable adjustment mechanism; and the inclination of the drill rod during the drilling process of the pile driver drill rod can be supported and limited through the set movable limiting mechanism; and the "alarm" of the movable limiting mechanism can be used in time to detect whether the inclination direction and inclination of the pile driver drill rod exceed the standard (beyond the range allowed by the design), and then timely correction and adjustment can be made to meet the quality requirements of the drilling.

Claims

1. A positioning device for pile foundation construction in high-altitude slope areas, comprising a guide sliding seat installed on a pile driver for lifting and lowering, wherein the guide sliding seat is provided with a sliding seat passage opening for the pile driver drill rod to move through; characterized in that: The top end of the guide sliding seat is provided with a movable limiting mechanism for limiting the position of the pile driver drill rod passing through the sliding seat passage opening; The bottom end of the guide sliding seat is provided with a movable adjustment mechanism for positioning and guiding the pile driver drill rod passing through the sliding seat passage opening; The movable adjustment mechanism includes a plurality of guide positioning arc plates, which are movably arranged around the bottom end of the sliding seat passage opening of the guide sliding seat, and the plurality of guide positioning arc plates are relatively movable and used for positioning and guiding the drill rod of the slave pile driver; The guide and positioning arc plates are respectively connected with driving mechanisms for driving the guide and positioning arc plates to slide along the bottom end surface of the guide sliding seat; The driving mechanisms all include a driving connecting rod and a driving movable rod; One end of the driving connecting rod is hinged to an end face of the guiding positioning arc plate away from the sliding seat passage through a hinge seat, and the other end of the driving connecting rod is hinged to a limited sliding block through a hinge seat, and the limited sliding block is slidably arranged with the top surface of the movable connecting seat, and the movable connecting seat is connected to the guiding sliding seat through a plurality of connecting steel pipes; The movable connecting seat is provided with a connecting seat passage, the connecting seat passage is coaxially connected with the sliding seat passage opening, the connecting seat passage is used for the pile driver drill rod to pass through, and the movable connecting seat is installed on the pile driver by means of a guide rail. The middle part of the driving connecting rod is hinged to one end of the driving movable rod through a hinge seat, and a movable blind hole corresponding to the driving connecting rod is provided around the connecting seat channel provided by the movable connecting seat, and one end of the driving movable rod away from the driving connecting rod is hinged to a power mechanism for driving the driving connecting rod to move; The movable limiting mechanism comprises a movable steel sleeve and a movable steel inner sleeve which are arranged through the center; The movable steel inner sleeve is movably arranged in the movable steel sleeve; The movable steel sleeve has one end near the guide sliding seat connected to a movable ball head which is connected to the movable steel sleeve. The movable ball head is movably connected to the ball head seat. The ball head seat is installed in the sliding seat passage opening of the guide sliding seat, and the movable ball head is connected to the sliding seat passage opening. The pile driver drill rod passes through the movable steel inner casing, passes through the movable ball head and the ball head seat, and passes through the passage opening of the sliding seat; A plurality of movable pins are connected around the outer wall of the movable steel inner sleeve, and one end of the movable pin away from the movable steel inner sleeve can be movably passed through the side wall of the movable steel sleeve; The movable pin shafts are all sleeved with sleeve protection springs, and the sleeve protection springs are arranged between the movable steel inner sleeve and the movable steel sleeve, one end of the sleeve protection spring is connected to the outer wall of the movable steel inner sleeve, and the other end of the sleeve protection spring is connected to the inner wall of the movable steel sleeve; The movable steel sleeve is movably inserted into the position-limiting steel sleeve, and the bottom end of the position-limiting steel sleeve is connected and fixed to the guide sliding seat; A high-strength return spring is provided in the gap between the movable steel sleeve and the limit steel sleeve, and the high-strength return spring is sleeved on the movable steel sleeve, one end of the high-strength return spring is connected to the outer wall of the movable steel sleeve, and the other end of the high-strength return spring is connected to the inner wall of the limit steel sleeve; The top outer wall of the movable steel inner sleeve is connected to a limited circular ring hoop, the top outer wall of the limited steel sleeve is connected to a movable connecting circular steel plate, a plurality of movable sensing structures are arranged around the limited circular ring hoop, and the movable sensing structures are movably installed and connected to the top surface of the movable connecting circular steel plate; The movable sensing structures all include a movable hinge rod and a movable sensing sliding seat; The limiting circular hoop is provided with connecting grooves corresponding to the movable hinge rod around it, one end of the movable hinge rod is rotatably connected with the connecting groove provided by the limiting circular hoop through the rotation of the pin shaft, the other end of the movable hinge rod is hinged to the top end of the movable sensing sliding seat through the hinge seat, the bottom end of the movable sensing sliding seat is connected with a movable slider, the top end surface of the movable connecting round steel plate is provided with a slide groove, the movable slider is placed in the slide groove, and is slidably adapted to the slide groove; A movable sensing rod is arranged in the slide groove opened on the top surface of the movable connecting round steel plate, one end of the movable sensing rod is connected to the movable sliding block, and the other end of the movable sensing rod movably passes through the limit block, and the limit block is installed and connected in the slide groove opened on the top surface of the movable connecting round steel plate and is away from the side of the limit circular hoop; The movable sensing rods are respectively provided with inductive deformation springs, and the inductive deformation springs are arranged between the limit block and the movable sliding block, one end of the inductive deformation spring is connected to the limit block, and the other end of the inductive deformation spring is connected to the movable sliding block; An alarm sensor is respectively installed and connected to one end of the slide groove on the top surface of the movable connecting round steel plate away from the limiting circular ring hoop, and the alarm sensor is electrically connected to the operation control system of the pile driver; When the pile driver's drill rod is tilted, the tilted end face of the pile driver's drill rod abuts against the movable steel inner casing, and the movable steel inner casing moves, driving the limiting circular ring hoop connected to the top end of the movable steel inner casing to move, thereby driving the limiting circular ring hoop on the tilted side to drive the movable slider to slide along the slide groove provided on the top end face of the movable connected round steel plate, and the movable sensing rod is driven by the movable slider to move toward one end of the alarm sensor, and the alarm sensor is triggered to start through the movement of the movable sensing rod, which is electrically connected to the pile driver's operation control system, triggering the alarm of the pile driver's operation control system to sound an alarm, reminding the construction personnel that the tilt direction and tilt degree of the pile driver's drill rod exceed the standard.

2. The high-altitude slope area pile foundation construction positioning device according to claim 1 is characterized in that: The power mechanism includes a hydraulic cylinder arranged centrally; The bottom end of the connection seat passage opened by the movable connection seat is connected with a guide steel cylinder, the other end of the guide steel cylinder passes through the through-hole cavity of the hydraulic cylinder, and the outer wall of the guide steel cylinder is welded and fixed to the inside of the through-hole cavity of the hydraulic cylinder; The output end rod of the hydraulic cylinder is connected with a movable sleeve for driving the lifting movement through the hydraulic cylinder, and the movable sleeve is movably mounted on the guide steel cylinder; One end of the driving movable rod away from the driving connecting rod is hinged to the outer wall of the movable sleeve through a hinge seat.

3. The high-altitude slope area pile foundation construction positioning device according to claim 2 is characterized in that: The top of the guiding and positioning arc plate is connected to a top sliding block of the arc plate, and the guiding and positioning arc plate is slidably arranged through the top sliding block of the arc plate and the bottom end surface of the guiding sliding seat; The bottom ends of the guiding and positioning arc plates are connected with arc plate bottom end sliding blocks, and the guiding and positioning arc plates are slidably arranged through the arc plate bottom end sliding blocks and the top end surface of the movable connection seat.

4. The high-altitude slope area pile foundation construction positioning device according to claim 2 is characterized in that: The end of the guide steel cylinder away from the movable connection seat is provided with a bottom end supporting and resisting structure; The bottom end support and blocking structure comprises a bottom end support and limiting steel cylinder which is arranged through the center. The bottom end support and limiting steel cylinder is arranged coaxially with the guide steel cylinder for the pile driver drill rod to pass through. The outer wall of the guide steel cylinder is provided with a through-set fixed steel sleeve, and the top of the fixed steel sleeve is fixedly connected to the bottom of the outer wall of the guide steel cylinder; An elastic protective member is arranged in the hollow cavity of the fixed steel sleeve, and the bottom end supporting and limiting steel cylinder is connected with the guide steel cylinder through the elastic protective member.

5. The high-altitude slope area pile foundation construction positioning device according to claim 4 is characterized in that: The elastic protection member comprises a bottom limit protection spring, and the bottom limit protection spring is arranged in the gap between the fixed steel sleeve and the bottom support limit steel cylinder; One end of the bottom limit protection spring is connected to the outer wall of the bottom support limit steel cylinder, and the other end of the bottom limit protection spring is connected to the outer wall of the guide steel cylinder; The outer wall of one end of the bottom support and limit steel cylinder away from the guide steel cylinder is connected with a bottom support and limit round steel plate, and the bottom support and limit round steel plate is used to abut against the fixed steel sleeve, and the bottom support and limit steel cylinder is supported by the fixed steel sleeve.

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