Cast-in-place pile drilling perpendicularity detection device

Abstract

The invention relates to the technical field of cast-in-situ bored piles, in particular to a cast-in-situ pile drilling perpendicularity detection device which comprises a rotating sleeve and a measuring main rod rotationally arranged in the rotating sleeve. The measuring mechanism is vertically and movably arranged on the measuring main rod and is used for detecting the perpendicularity of the pile hole; the fixing mechanism comprises an upper supporting frame and a lower supporting frame which are arranged outside the rotating sleeve, three positioning arc frames which are arranged between the upper supporting frame and the lower supporting frame in a sliding mode, and an adjusting assembly which is arranged on the rotating sleeve and used for adjusting the positions of the positioning arc frames. According to the invention, through cooperative use of the measuring main rod and the measuring mechanism, fixed-height verticality detection can be carried out at different depths in a pile hole, and horizontal deviation data of the verticality of the pile hole is obtained through reading on the measuring mechanism, so that a verticality detection result is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of bored cast-in-place piles, and in particular to a device for detecting the verticality of bored pile holes. Background Art

[0002] Bored piles are made by directly drilling holes at the pile position, hoisting the steel cage skeleton into the hole, and then pouring concrete into the hole. Its construction process is simple, can adapt to changes in the stratum, and does not require pile connection. The steel cage and concrete can be processed and distributed centrally or processed on site. It is easy to operate, has low noise and vibration during construction, and can build piles with a much larger diameter than prefabricated piles. It can be used on various foundations. It does not require large equipment during construction, has fast progress, mature technology, and is safe and reliable. Bored piles have been widely used in the foundations of structural engineering such as roads, railways, and bridges due to their mature construction technology, high bearing capacity, and wide range of applications.

[0003] At present, the verticality of bored piles is directly related to the overall operation of the construction process. Even if the pile hole is slightly tilted, the steel cage and the conduit will be subject to a large blocking force when they are inserted into the pile hole. In order to ensure the bearing capacity of the pile foundation, the verticality of the pile hole must meet the design requirements. Therefore, before starting construction, the verticality of the pile hole needs to be tested, but the existing verticality detection device is heavy, expensive and not easy to carry.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings and provide a device for detecting the verticality of bored pile holes.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a bored pile drilling verticality detection device, comprising a rotating sleeve and a measuring main rod rotatably arranged in the rotating sleeve;

[0007] A measuring mechanism is vertically movably arranged on the measuring main rod and is used to detect the verticality of the pile hole;

[0008] The fixing mechanism comprises an upper support frame and a lower support frame arranged outside the rotating sleeve, three positioning arc frames slidably arranged between the upper support frame and the lower support frame, and an adjusting component arranged on the rotating sleeve and used for adjusting the position of the positioning arc frames.

[0009] Furthermore, the adjustment component includes a toothed disc disposed on the lower support frame and fixed to the outer wall of the rotating sleeve, and a driven gear meshed with and vertically disposed on the toothed disc, and a screw rod adapted to the positioning arc frame is disposed on the driven gear.

[0010] Furthermore, a mounting ring is rotatably provided on one end of the screw rod passing through the driven gear;

[0011] The mounting ring is movably arranged outside the rotating sleeve.

[0012] Furthermore, the measuring mechanism comprises a mobile frame arranged on the measuring main rod, an outer support ring arranged coaxially with the mobile frame, two straight guide grooves at right angles are arranged between the mobile frame and the outer support ring, and a graduated measuring plate passing through the outer support ring and used to measure the vertical deviation length in the pile hole is arranged on the side guide of the straight guide groove;

[0013] A buzzer is arranged at the outer end of the scale measuring plate.

[0014] Furthermore, a rack is provided on one side of the scale measuring plate, a first gear is meshed on the rack, a second gear is coaxially provided on the first gear, an inner gear ring rotatably provided on the outer support ring is meshed on the second gear, an outer gear ring is provided outside the inner gear ring, and a power gear driven by a motor is meshed on one side of the outer gear ring.

[0015] Furthermore, the three circumferential end plates on the movable frame are all provided with vertical limiting guide rods, and the upper ends of the guide rods are correspondingly provided with first connecting frames;

[0016] The first connecting frame is arranged on the lower end surface of the lower supporting frame.

[0017] Furthermore, a lower support ring for the measurement main rod to pass through is provided at the lower portion of the guide rod, and a second connecting frame is provided on the lower support ring corresponding to the lower end portion of the guide rod.

[0018] Furthermore, a support sleeve sleeved outside the rotating sleeve is provided on the upper portion of the upper support frame, and a limit plate horizontally fixed on the pile hole foundation is slidably provided in a groove on the support sleeve.

[0019] Furthermore, a mounting seat for fixing the driving motor is provided at the top end of the measuring main rod.

[0020] Furthermore, the shaft ends of the two groups of coaxially arranged first gears and second gears are provided with supporting arc plates for fixing on the moving frame.

[0021] Compared with the prior art, the present invention has the following beneficial effects: the present invention can perform fixed-height verticality detection at different depths in the pile hole through the coordinated use of the set measuring main rod and the measuring mechanism, and obtain the horizontal deviation data of the verticality of the pile hole through the readings on the measuring mechanism, thereby obtaining the verticality detection result; and the set fixing mechanism can also support and fix the device at the upper part of the pile hole, so that the device can be adjusted according to the diameter of the pile hole to meet the use of pile holes with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 A three-dimensional structural diagram of an overall perspective of an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the front plan structure of a support structure according to an embodiment of the present invention;

[0025] Figure 3 A three-dimensional structural diagram of a measuring mechanism assembled on a measuring main rod according to an embodiment of the present invention from one viewing angle;

[0026] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0027] Figure 5 A three-dimensional structural diagram of a measuring mechanism mounted on a measuring main rod according to an embodiment of the present invention from another perspective;

[0028] Figure 6 for Figure 5 The enlarged structural diagram at B in the middle;

[0029] Figure 7 A three-dimensional structural diagram of a fixing mechanism assembled on a rotating sleeve according to an embodiment of the present invention from one perspective;

[0030] Figure 8 for Figure 7 The enlarged structural diagram at C in the middle;

[0031] Fig. 9 A three-dimensional structural diagram of a fixing mechanism assembled on a rotating sleeve according to an embodiment of the present invention from another perspective;

[0032] Fig.10 for Fig. 9 Enlarged structural diagram at D in the middle.

[0033] In the figure: 1. rotating sleeve; 2. measuring main rod; 3. measuring mechanism; 300. supporting arc plate; 31. moving frame; 32. outer supporting ring; 33. straight guide groove; 34. scale measuring plate; 35. rack; 36. first gear; 37. second gear; 38. inner gear ring; 39. outer gear ring; 310. power gear; 3101. motor; 4. fixing mechanism; 41. upper supporting frame; 42. adjusting assembly; 421. mounting ring; 422. lead screw; 423. driven gear; 424. toothed disc; 43. lower supporting frame; 431. first connecting frame; 44. positioning arc frame; 5. guide rod; 6. lower supporting ring; 61. second connecting frame; 7. supporting sleeve; 8. limiting plate; 9. mounting seat. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] like Figure 1-10 As shown, a bored pile drilling verticality detection device of the present invention comprises a rotating sleeve 1 and a measuring main rod 2 rotatably arranged in the rotating sleeve 1;

[0038] A measuring mechanism 3 is vertically movable and arranged on the measuring main rod 2, and is used to detect the verticality of the pile hole;

[0039] The fixing mechanism 4 includes an upper support frame 41 and a lower support frame 43 arranged outside the rotating sleeve 1, three positioning arc frames 44 slidably arranged between the upper support frame 41 and the lower support frame 43, and an adjusting component 42 arranged on the rotating sleeve 1 and used to adjust the position of the positioning arc frames 44.

[0040] In a specific implementation, by rotating the sleeved rotating sleeve 1 and the measuring main rod 2, operating the adjusting component 42 welded and fixed on the rotating sleeve 1, and laterally adjusting the position of the positioning arc frame 44 between the upper support frame 41 and the lower support frame 43 through the adjusting component 42, the device can be fixed at the upper limit position in pile holes of different diameters, and then the measuring mechanism 3 installed at the lower proximal end of the fixing mechanism 4 is operated to obtain the horizontal distance from the center of the upper part of the pile hole to the pile wall and record it, and then restore the measuring mechanism 3 to the initial state, and then operate the measuring main rod 2 to drive the overall structure of the measuring mechanism 3 to move down to a certain depth, and then operate the measuring mechanism 3 again to obtain the horizontal distance from the center to the pile wall at this point and compare it with the recorded data. If the deviation does not exceed 1% of the pile hole depth, it is qualified.

[0041] It should be noted that for most common pile foundation construction, the deviation control standard for the verticality of the pile hole shall generally not exceed ±1% of the pile hole depth. However, in some standards, the deviation may be appropriately relaxed and is usually required not to exceed ±1.5% of the pile hole depth. The specific requirements depend on the construction standards and design requirements.

[0042] It should be noted that both the upper support frame 41 and the adjustment assembly 42 are machined with observation ports, so that the deviation data can be observed without affecting other functions of the device.

[0043] In one embodiment, the adjustment assembly 42 includes a toothed disc 424 disposed on the lower support frame 43 and fixed to the outer wall of the rotating sleeve 1, a driven gear 423 meshing and vertically disposed on the toothed disc 424, and a screw rod 422 adapted to the positioning arc frame 44 is disposed on the driven gear 423. With this design, the toothed disc 424 welded on the outer wall of the rotating sleeve 1 is operated to drive the toothed disc 424 welded thereon to rotate, and the rotation of the toothed disc 424 can drive the three driven gears 423 on the toothed disc 424 in a circular shape to rotate, thereby realizing the rotation of the screw rod 422 sleeved on the end of the driven gear 423, and driving the positioning arc frame 44 slotted and sliding between the upper support frame 41 and the lower support frame 43 to perform a linear movement of outward expansion, so as to achieve the effect of supporting and fixing the device at the upper part of the pile hole, and meet the installation and use of pile holes of different diameters.

[0044] In one embodiment, a mounting ring 421 is rotatably provided on one end of the screw rod 422 passing through the driven gear 423;

[0045] The mounting ring 421 is movably arranged outside the rotating sleeve 1. With such a design, the mounting ring 421, which is rotatably connected at one end of the screw rod 422 and rotatably mounted on the toothed disc 424, does not rotate with the toothed disc 424 on the one hand, and can support the three circumferential driven gears 423 meshing on the toothed disc 424 and the screw rod 422 sleeved on the driven gears 423 on the other hand.

[0046] In one embodiment, the measuring mechanism 3 comprises a mobile frame 31 arranged on the measuring main rod 2, an outer support ring 32 arranged coaxially with the mobile frame 31, two straight guide grooves 33 at right angles are arranged between the mobile frame 31 and the outer support ring 32, and a graduated measuring plate 34 passing through the outer support ring 32 and used to measure the vertical deviation length in the pile hole is arranged on the side guide of the straight guide groove 33;

[0047] A buzzer is provided at the outer end of the scale measuring plate 34. In this design, by machining a threaded section on the measuring main rod 2, and rotating the threaded section on the measuring main rod 2 to fit the movable frame 31, and the outer support ring 32 coaxially sleeved and installed on the measuring main rod 2 with the movable frame 31, on the one hand, the scale measuring plate 34 installed on the two straight guide grooves 33 at right angles between the movable frame 31 and the outer support ring 32 can be horizontally supported, so that the linear movement of the scale measuring plate 34 can be achieved, and the distance from the center of the pile hole to the pile wall can be measured; on the other hand, the measuring mechanism 3 can be driven by the measuring main rod 2 to move vertically, so that the verticality detection of the fixed height can be achieved.

[0048] It should be noted that the buzzer of the present invention is used in conjunction with a pressure sensor, where the pressure sensor sends a mechanical signal of physical pressure to a corresponding controller, which then sends an electrical signal to start the buzzer, thereby achieving a warning effect of measurement termination.

[0049] It should be noted that the data reading section of the scale measuring plate 34 is from the outer end of the scale measuring plate 34 to the end of the scale measuring plate 34 overlapping with the outer support ring 32 .

[0050] In one embodiment, a rack 35 is provided on one side of the scale measuring plate 34, a first gear 36 is meshed on the rack 35, a second gear 37 is coaxially provided on the first gear 36, an inner gear ring 38 rotatably provided on the outer support ring 32 is meshed on the second gear 37, an outer gear ring 39 is provided outside the inner gear ring 38, and a power gear 310 driven by a motor 3101 is meshed on one side of the outer gear ring 39. In this design, through the rack 35 integrally formed on one side of the scale measuring plate 34, the first gear 36 meshing on the rack 35, the second gear 37 coaxially installed with the first gear 36, and the inner gear ring 38 meshing with the second gear 37 and the outer gear ring 39 welded on the outer sleeve of the inner gear ring 38, when the motor 3101 connected to the power shaft coupling on the power gear 310 meshing with the outer gear ring 39 is started, the generated rotational force will be transmitted to the coaxially installed first gear 36 and second gear 37 through the sleeve welded inner gear ring 38 and outer gear ring 39, and then drive the rack 35 meshing on the side of the first gear 36 and the scale measuring plate 34 integrally formed and assembled on the rack 35 to perform linear motion in the horizontal plane under the limitation of the straight guide groove 33 until the buzzer installed near the outer end of the scale measuring plate 34 sounds, and the power supply of the motor 3101 is stopped and disconnected.

[0051] In one embodiment, three circumferential end plates on the mobile frame 31 are all provided with vertically limited guide rods 5, and the upper ends of the guide rods 5 are correspondingly provided with first connecting frames 431;

[0052] The first connecting frame 431 is arranged on the lower end surface of the lower supporting frame 43. In this design, the guide grooves penetrating from top to bottom are machined on the three circumferential end plates of the moving frame 31, which are used to guide and limit the installation of a corresponding number of guide rods 5. When the measuring mechanism 3 is driven by the measuring main rod 2 to perform vertical linear motion, the cooperation between the guide rod 5 and the guide groove provides a linear limit for the rotation of the measuring mechanism 3.

[0053] The guide rod 5 and the first connecting frame 431 can be separated by the first connecting frame 431 detachably installed on the upper end of the guide rod 5 and welded to the lower end surface of the lower support frame 43. The guide rod 5 of corresponding length can be selected according to the depth of the pile hole, which is suitable for pile holes of various specifications.

[0054] In one embodiment, a lower support ring 6 for the measuring main rod 2 to pass through is provided at the lower portion of the guide rod 5, and a second connecting frame 61 is provided on the lower support ring 6 corresponding to the lower end of the guide rod 5. In this design, the second connecting frame 61 detachably mounted at the lower end of the guide rod 5 and the second connecting frame 61 welded at the upper end of the lower support ring 6 can not only fix and support the upper and lower ends of the guide rod 5, but also the guide rod 5 of corresponding specifications can be replaced in the actual pile hole construction scene, and the operation is simple.

[0055] In one embodiment, the upper portion of the upper support frame 41 is provided with a support sleeve 7 sleeved outside the rotating sleeve 1, and a limit plate 8 horizontally fixed on the foundation of the pile hole is slidably provided in a groove on the support sleeve 7. With this design, the device can be supported on the foundation of the pile hole by the support sleeve 7 welded on the upper portion of the upper support frame 41 and sleeved outside the rotating sleeve 1, and the limit plate 8 is vertically slidably installed in a groove on the outer wall of the support sleeve 7;

[0056] And through the limit plate 8 slidably installed on the support sleeve 7, the distance between the limit plate 8 and the upper support frame 41 can be adjusted according to the on-site construction requirements to meet the construction requirements in multiple scenarios.

[0057] In one embodiment, a mounting seat 9 for fixing a driving motor is provided at the top of the measuring main rod 2. In this design, by sleeve-welding the mounting seat 9 on the portion of the measuring main rod 2 that is longer than the rotating sleeve 1, and bolting the driving motor connected to the coupling at the top of the measuring main rod 2 on the mounting seat 9, the driving motor is started, and the power generated can drive the measuring main rod 2 to rotate, so that the measuring mechanism 3 with the screw section on the measuring main rod 2 rotatingly cooperates to perform vertical linear motion under the limit of the guide rod 5, and the verticality measurement of the pile hole can be performed at a fixed height.

[0058] In one embodiment, the shaft ends of the two sets of coaxially arranged first gears 36 and second gears 37 are provided with support arc plates 300 for fixing to the mobile frame 31. With this design, the first gear 36 and the second gear 37 can be supported for rotation of the external structure by installing the support arc plates 300 on the same shaft ends of the coaxially arranged first gears 36 and second gears 37, and the support arc plates 300 are welded and fixed to the mobile frame 31.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A device for detecting the verticality of bored pile holes, characterized in that: It comprises a rotating sleeve (1) and a measuring main rod (2) rotatably arranged in the rotating sleeve (1); A measuring mechanism (3) is vertically movable and arranged on the measuring main rod (2) and is used to detect the verticality of the pile hole; The fixing mechanism (4) comprises an upper support frame (41) and a lower support frame (43) arranged outside the rotating sleeve (1), three positioning arc frames (44) slidably arranged between the upper support frame (41) and the lower support frame (43), and an adjusting component (42) arranged on the rotating sleeve (1) and used for adjusting the position of the positioning arc frames (44).

2. A bored pile drilling verticality detection device according to claim 1, characterized in that: The adjustment assembly (42) comprises a toothed disc (424) disposed on the lower support frame (43) and fixed to the outer wall of the rotating sleeve (1), and a driven gear (423) meshed with and vertically disposed on the toothed disc (424), wherein the driven gear (423) is provided with a screw rod (422) adapted to the positioning arc frame (44).

3. A bored pile drilling verticality detection device according to claim 2, characterized in that: A mounting ring (421) is rotatably provided on one end of the screw rod (422) passing through the driven gear (423); The mounting ring (421) is movably arranged outside the rotating sleeve (1).

4. A bored pile drilling verticality detection device according to any one of claims 1 to 3, characterized in that: The measuring mechanism (3) comprises a moving frame (31) arranged on the measuring main rod (2) in cooperation with the moving frame (31), and an outer support ring (32) arranged coaxially with the moving frame (31); two straight guide grooves (33) at right angles are arranged between the moving frame (31) and the outer support ring (32); a graduated measuring plate (34) passing through the outer support ring (32) and used for measuring the vertical deviation length in the pile hole is arranged on the side guide of the straight guide groove (33); A buzzer is arranged at the outer end of the scale measuring plate (34).

5. A bored pile drilling verticality detection device according to claim 4, characterized in that: A rack (35) is arranged on one side of the scale measuring plate (34), a first gear (36) is meshed on the rack (35), a second gear (37) is coaxially arranged on the first gear (36), an inner gear ring (38) rotatably arranged on the outer support ring (32) is meshed on the second gear (37), an outer gear ring (39) is arranged outside the inner gear ring (38), and a power gear (310) driven by a motor (3101) is meshed on one side of the outer gear ring (39).

6. A bored pile drilling verticality detection device according to claim 4, characterized in that: The three circumferential end plates on the movable frame (31) are all provided with vertically limited guide rods (5), and the upper ends of the guide rods (5) are correspondingly provided with first connecting frames (431); The first connecting frame (431) is arranged on the lower end surface of the lower supporting frame (43).

7. A bored pile drilling verticality detection device according to claim 6, characterized in that: A lower support ring (6) for the measuring main rod (2) to pass through is provided at the lower portion of the guide rod (5), and a second connecting frame (61) is provided on the lower support ring (6) corresponding to the lower end of the guide rod (5).

8. The device for detecting verticality of bored pile holes according to claim 1, characterized in that: The upper part of the upper support frame (41) is provided with a support sleeve (7) sleeved outside the rotating sleeve (1), and a limit plate (8) horizontally fixed on the pile hole foundation is slidably provided in a groove on the support sleeve (7).

9. A bored pile drilling verticality detection device according to claim 1, characterized in that: The top end of the measuring main rod (2) is provided with a mounting seat (9) for fixing the driving motor.

10. A bored pile drilling verticality detection device according to claim 5, characterized in that: The shaft ends of the two sets of coaxially arranged first gears (36) and second gears (37) are provided with supporting arc plates (300) for fixing on the moving frame (31).

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