CN114563286A - Bearing capacity detection device for building pile foundation detection and application method thereof - Google Patents

Bearing capacity detection device for building pile foundation detection and application method thereof Download PDF

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Publication number
CN114563286A
CN114563286A CN202210199699.3A CN202210199699A CN114563286A CN 114563286 A CN114563286 A CN 114563286A CN 202210199699 A CN202210199699 A CN 202210199699A CN 114563286 A CN114563286 A CN 114563286A
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rod
rotating
pile foundation
fixedly connected
bevel gear
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邢乐
赵志豪
安京龙
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China Coal Guanghua Geological Engineering Co ltd
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China Coal Guanghua Geological Engineering Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D33/00—Testing foundations or foundation structures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/06—Special adaptations of indicating or recording means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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Abstract

The utility model belongs to the field of detection devices, in particular to a bearing capacity detection device for detecting a building pile foundation and a use method thereof, aiming at the problems that the prior detection device needs to use a plurality of motors to realize the impact force detection of the pile foundation, the operation is inconvenient, and the potential energy of the impact force can not be adjusted according to the required condition, so that the detection data is single, the utility model provides the following scheme, which comprises a base, wherein the top of the base is rotatably provided with a placing plate, the top of the base is fixedly connected with two supporting columns, the top ends of the two supporting columns are fixedly connected with a same top plate, and one side of the two supporting columns, which is close to each other, is fixedly connected with a same fixing plate. So that more abundant detection data can be obtained.

Description

Bearing capacity detection device for building pile foundation detection and application method thereof
Technical Field
The utility model relates to the technical field of detection devices, in particular to a bearing capacity detection device for detecting a building pile foundation and a using method thereof.
Background
Deep foundations consisting of piles and pile caps connected to the tops of the piles or single-pile foundations consisting of columns connected to pile foundations, referred to as pile foundations for short. If the pile body is completely buried in the soil, the bottom surface of the bearing platform is in contact with the soil body, the pile body is called a low bearing platform pile foundation, if the upper part of the pile body is exposed out of the ground and the bottom of the bearing platform is positioned above the ground, the pile body is called a high bearing platform pile foundation, the building pile foundation is usually a low bearing platform pile foundation, and the pile foundation is widely applied in high-rise buildings;
the patent document with the publication number of CN215812164U discloses a bearing capacity detection device for building pile foundation detection, and discloses a bearing capacity detection device for building pile foundation detection, which comprises a base, a detection support, an impact driving device and an adjusting assembly, wherein the detection support is arranged on the base, the impact driving device is arranged on the detection support, a placing disc is rotatably arranged on the base, the adjusting assembly is arranged in the base, the impact driving device comprises a supporting plate, a toothed bar, an impact block, a driving wheel, a driven gear, a connecting belt and a motor I, the supporting plate is arranged on the detection support, the toothed bar is slidably arranged on the supporting plate, and the impact block is arranged at the bottom of the toothed bar; the utility model belongs to the field of bearing capacity detection, and particularly relates to bearing capacity detection for building pile foundation detection, which can carry out impact type detection on a pile foundation through an impact driving device or carry out gradual pressurization type detection through a hydraulic rod, and can carry out detection on different positions of the pile foundation through the arrangement of an adjusting assembly;
however, in the above patent document, the impact force detection is performed on the pile foundation by using a plurality of motors, which is inconvenient to operate, and the impact force is caused by the free fall of the impact block due to the dead weight, so that the potential energy of the impact force is relatively constant, and the potential energy of the impact force is adjusted according to the requirement, so that different detection data are obtained.
Disclosure of Invention
The utility model aims to solve the defects that in the detection device in the prior art, a plurality of motors are needed to detect the impact force of a pile foundation, the operation is inconvenient, and the potential energy of the impact force cannot be adjusted according to the required condition, so that the detection data is single, and the bearing capacity detection device for detecting the building pile foundation is provided.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a bearing capacity detection device for building pile foundation detection comprises a base, wherein a placing plate is rotatably arranged at the top of the base, two support columns are fixedly connected to the top of the base, the top ends of the two support columns are fixedly connected with a same top plate, one side, close to each other, of the two support columns is fixedly connected with a same fixed plate, one side of the fixed plate is provided with a first chute, a first sliding block is slidably arranged in the first chute, one side of the first sliding block is fixedly connected with a detection rod, the bottom end of the detection rod is fixedly connected with an impact block, the top of the top plate is fixedly provided with a hydraulic cylinder, an output shaft of the hydraulic cylinder is welded with a telescopic rod, the telescopic rod is matched with the detection rod, one side of the fixed plate is provided with a lifting mechanism, the lifting mechanism is matched with the detection rod, a rotary adjusting mechanism is arranged in the base, the other side of the fixed plate is fixedly provided with a motor, the motor is matched with the lifting mechanism and the rotary adjusting mechanism, a pressure sensor is arranged on the placing plate, and a display screen is arranged on the base.
Preferably, be provided with the slide bar in the first spout, seted up the slide opening on the first slider, slide bar slidable mounting is in the slide opening, and the outside cover of slide bar is equipped with reset spring, and the outside slip cover of slide bar is equipped with the limiting plate, and reset spring's one end and the bottom fixed connection of limiting plate, reset spring's the other end and the top fixed connection of first slider, reset spring can be with the deformation when resumeing the energy indirect transmission that produces to the impact block on.
Preferably, a second chute has been seted up on the inner wall of one side of first chute, and slidable mounting has the second slider in the second chute, and the threaded rod is installed to the second chute internal rotation, and the top of threaded rod extends to the outside and the fixedly connected with knob of fixed plate, set up threaded hole on the second slider, and threaded rod thread mounting is in the threaded hole, one side and limiting plate fixed connection of second slider, and the threaded rod can drive the displacement of second slider through the screw hole.
Preferably, hoist mechanism is including rotating the first rotary rod on the fixed plate, the first half gear of one end fixedly connected with of first rotary rod, fixedly connected with rack on the measuring pole, first half gear cooperatees with the rack, the welding has the rotation axis on the output shaft of motor, the fixed cover in the outside of rotation axis is equipped with first bevel gear, the one end fixedly connected with second bevel gear of first rotary rod, second bevel gear meshes with first bevel gear mutually, first half gear can intermittent type nature drive rack displacement.
Preferably, rotatory adjustment mechanism is including offering the transmission chamber in the base, and second rotary rod and third rotary rod are installed in the rotation of transmission intracavity, and the top of second rotary rod extends to the outside of base and with place the board and be connected, and the fixed cover in the outside of second rotary rod is equipped with second half gear, and the fixed cover in the outside of third rotary rod is equipped with rotatory gear, and rotatory gear cooperatees with second half gear, and second half gear can intermittent type nature drive rotatory gear rotation.
Preferably, rotatory adjustment mechanism still include with rotation axis fixed connection's belt lace wheel, the rotatory through-hole that switches on mutually with the transmission chamber is seted up in the outside of base, the fourth rotary rod is installed to the rotatory through-hole internal rotation, the big belt pulley of one end fixedly connected with of fourth rotary rod, the outside cover of big belt pulley and belt lace wheel is equipped with same belt, the other end fixedly connected with third bevel gear of fourth rotary rod, the fixed cover in the outside of second rotary rod is equipped with fourth bevel gear, fourth bevel gear meshes with third bevel gear mutually, the belt lace wheel can drive big belt pulley through the belt and rotate and reduce rate.
Preferably, the top symmetry of placing the board is provided with two fixture, and fixture includes fixed mounting in the fixed curb plate of placing the board top, rotates on the curb plate and installs fastening bolt, and fastening bolt's one end fixedly connected with grip block, fastening bolt can drive the grip block displacement, and then fixes the pile foundation centre gripping through two grip blocks.
The utility model also provides a use method of the bearing capacity detection device for detecting the building pile foundation, which comprises the following steps:
s1: when in use, the pile foundation is firstly placed on the placing plate, then the fastening bolt is rotated to enable the clamping blocks at two sides to fix the pile foundation on the top of the placing plate, the displacement or deviation generated during the impact force detection of the pile foundation is avoided, then the motor is started, the output shaft of the motor drives the rotating shaft to rotate, the rotating shaft synchronously drives the first bevel gear and the belt pulley to rotate, the first bevel gear can drive the second bevel gear to rotate, the second bevel gear can drive the first half gear to rotate through the first rotating rod, the rack can be intermittently driven to displace during the rotation of the first half gear, so that the rack drives the detection rod to displace, the detection rod drives the impact block to displace, the detection rod drives the first sliding block to displace and enable the reset spring to deform, and then when the first half gear is separated from the rack, the impact block is downwards beaten under the self-weight and the restoring deformation acting force of the reset spring, the impact block can intermittently impact the pile foundation, and the detected data is displayed through the display screen;
s2: in addition, the small belt pulley can drive the large belt pulley to rotate through a belt and reduce the speed, the large belt pulley can drive the third bevel gear to rotate through the fourth rotating rod, the third bevel gear can drive the fourth bevel gear to rotate, the fourth bevel gear can drive the second half gear to rotate through the second rotating rod, the second half gear can intermittently drive the rotating gear to rotate, the rotating gear can drive the placing plate to rotate through the third rotating rod, the placing plate intermittently rotates for a certain angle, the aim of comprehensively detecting the pile foundation can be fulfilled by matching with the upper intermittently falling impact block, and the placing plate always rotates for a certain angle when the impact block moves upwards;
s3: when the potential energy generated by the impact block during impact needs to be increased, the potential energy can be adjusted by rotating the rotary button, the rotary button can drive the threaded rod to rotate, the threaded rod can drive the second slider to move downwards through the threaded hole when rotating, the second slider can drive the limiting plate to move downwards, so that the deformation space of the reset spring is compressed, the first slider can enable the reset spring to accumulate larger deformation recovery potential energy within the same displacement distance, the potential energy generated by the impact block during downward displacement is increased, and richer detection data are obtained;
s4: when first half gear and rack are separated, and when second half gear and rotatory gear separated, can start the pneumatic cylinder this moment, it is the pneumatic cylinder drive test rod displacement, indirectly makes the impact block exert pressure to the pile foundation, can realize the detection mode of progressively increasing pressure.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the scheme, the first half gear is matched with the rack, and the first sliding block and the limiting plate are matched with the reset spring, so that the detection rod and the impact block can intermittently move up and down, and the impact force detection on the pile foundation is realized;
2. according to the scheme, the first belt pulley and the belt are matched with the second belt pulley, the second half gear is matched with the rotary gear, the placing plate can intermittently rotate for a certain angle, and the impact force detection on the pile foundation can be comprehensively realized by matching with the intermittently falling impact block;
3. according to the scheme, the threaded rod is matched with the second sliding block, the second sliding block is matched with the limiting plate, and the limiting plate can be indirectly driven to displace by rotating the threaded rod, so that the deformation space of the reset spring is effectively adjusted, the potential energy of downward impact of the impact block is indirectly adjusted and changed, and more impact force detection data can be obtained;
the utility model can carry out comprehensive impact force detection on the pile foundation in a simple and convenient mode, is very convenient to operate, and can adjust the potential energy of the impact force according to the requirement, thereby obtaining richer detection data.
Drawings
Fig. 1 is a schematic structural diagram of a bearing capacity detection device for detecting a building pile foundation according to the present invention;
fig. 2 is a schematic rear view of a bearing capacity detection device for detecting a building pile foundation according to the present invention;
fig. 3 is a schematic structural view of a cross section of a fixing plate of the bearing capacity detecting device for detecting the building pile foundation, provided by the utility model;
fig. 4 is a schematic structural diagram of a base of the bearing capacity detection device for detecting the building pile foundation provided by the utility model;
fig. 5 is a schematic perspective view of a limiting plate of the bearing capacity detection device for detecting the building pile foundation provided by the utility model.
In the figure: 1 base, 2 placing plates, 3 supporting columns, 4 top plates, 5 fixing plates, 6 first sliding blocks, 7 detecting rods, 8 impact blocks, 9 hydraulic cylinders, 10 telescopic rods, 11 motors, 12 sliding rods, 13 return springs, 14 limiting plates, 15 second sliding blocks, 16 threaded rods, 17 first rotating rods, 18 first half gears, 19 racks, 20 rotating shafts, 21 first bevel gears, 22 second bevel gears, 23 second rotating rods, 24 third rotating rods, 25 rotating gears, 26 small belt pulleys, 27 fourth rotating rods, 28 large belt pulleys, 29 belts, 30 third bevel gears, 31 fourth bevel gears, 32 side plates, 33 fastening bolts and 34 second half gears.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-5, a bearing capacity detecting device for building pile foundation detection, comprising a base 1, a placing plate 2 is rotatably installed on the top of the base 1, the top of the base 1 is fixedly connected with two supporting columns 3 by welding, the top ends of the two supporting columns 3 are fixedly connected with a same top plate 4 by welding, one side of the two supporting columns 3 close to each other is fixedly connected with a same fixing plate 5 by welding, one side of the fixing plate 5 is provided with a first chute, a first sliding block 6 is slidably installed in the first chute, one side of the first sliding block 6 is fixedly connected with a detection rod 7 by welding, the bottom end of the detection rod 7 is fixedly connected with an impact block 8 by welding, the top of the top plate 4 is fixedly installed with a hydraulic cylinder 9 by bolts, an output shaft of the hydraulic cylinder 9 is welded with a telescopic rod 10, the telescopic rod 10 is matched with the detection rod 7, one side of the fixing plate 5 is provided with a lifting mechanism, lifting mechanism and detection pole 7 cooperate, are provided with the rotation regulation mechanism in the base 1, and there is motor 11 at the opposite side of fixed plate 5 through bolt fixed mounting, and motor 11 cooperatees with lifting mechanism and rotation regulation mechanism, places and is provided with pressure sensor on the board 2, is provided with the display screen on the base 1.
In this embodiment, a sliding rod 12 is arranged in the first sliding groove, a sliding hole is formed in the first sliding block 6, the sliding rod 12 is slidably mounted in the sliding hole, a return spring 13 is sleeved on the outer side of the sliding rod 12, a limiting plate 14 is sleeved on the outer side of the sliding rod 12 in a sliding manner, one end of the return spring 13 is fixedly connected with the bottom of the limiting plate 14 in a welding manner, the other end of the return spring 13 is fixedly connected with the top of the first sliding block 6 in a welding manner, and the return spring 13 can indirectly transmit energy generated when the deformation is recovered to the impact block 8.
In this embodiment, the second spout has been seted up on one side inner wall of first spout, slidable mounting has second slider 15 in the second spout, and the second spout internal rotation installs threaded rod 16, threaded rod 16's top extends to the outside of fixed plate 5 and is connected with the knob through welded fastening, set up threaded hole on the second slider 15, threaded rod 16 threaded mounting is in the threaded hole, one side and the limiting plate 14 of second slider 15 pass through welded fastening and are connected, threaded rod 16 can drive 15 displacements of second slider through the screw hole.
In this embodiment, the lifting mechanism includes rotating the first rotary rod 17 on fixed plate 5, the one end of first rotary rod 17 is connected with first half gear 18 through welding fixedly, be connected with rack 19 through welding fixedly on the measuring rod 7, first half gear 18 cooperatees with rack 19, the welding has rotation axis 20 on the output shaft of motor 11, the outside of rotation axis is equipped with first bevel gear 21 through the fixed cover of welding, welding fixedly connected with second bevel gear 22 is passed through to the one end of first rotary rod 17, second bevel gear 22 meshes with first bevel gear 21 mutually, first half gear 18 can drive rack 19 displacement by intermittent type nature.
In this embodiment, rotatory adjustment mechanism is including seting up the transmission chamber in base 1, second rotary rod 23 and third rotary rod 24 are installed in the transmission intracavity rotation, the top of second rotary rod 23 extends to the outside of base 1 and is connected with placing board 2, the outside of second rotary rod 23 is equipped with second half gear 34 through welded fastening cover, the outside of third rotary rod 24 is equipped with swing gear 25 through welded fastening cover, swing gear 25 cooperatees with second half gear 34, second half gear 34 can drive swing gear 25 with intermittent type nature and rotate.
In this embodiment, rotatory adjustment mechanism still includes the belt lace wheel 26 that passes through welded fastening connection with rotation axis 20, the rotatory through-hole that switches on mutually with the transmission chamber is seted up in the outside of base 1, rotatory through-hole internal rotation is installed with fourth rotary rod 27, the big belt pulley 28 of welded fastening connection is passed through to the one end of fourth rotary rod 27, big belt pulley 28 is equipped with same belt 29 with the outside cover of belt lace wheel 26, the other end of fourth rotary rod 27 passes through welded fastening connection and has third bevel gear 30, the outside of second rotary rod 23 is equipped with fourth bevel gear 31 through the fixed cover of welded fastening, fourth bevel gear 31 meshes with third bevel gear 30 mutually, belt lace wheel 26 can drive big belt pulley 28 through belt 29 and rotate and reduce rate.
In this embodiment, the top symmetry of placing board 2 is provided with two fixture, and fixture includes fixed mounting in the fixed curb plate 32 of placing board 2 top, rotates on curb plate 32 and installs fastening bolt 33, and the one end of fastening bolt 33 is through welded fastening connection with the grip block, and fastening bolt 33 can drive the grip block displacement, and then fixes the pile foundation centre gripping through two grip blocks.
Example two
The embodiment also provides a use method of the bearing capacity detection device for detecting the building pile foundation, which comprises the following steps:
s1: when the pile foundation detection device is used, firstly, the pile foundation is placed on the placing plate 2, then the fastening bolts 33 are rotated, the pile foundation is fixed on the top of the placing plate 2 through the clamping blocks on two sides, the displacement or deviation generated during the impact force detection of the pile foundation is avoided, then the motor 11 is started, the output shaft of the motor 11 drives the rotating shaft 20 to rotate, the rotating shaft 20 synchronously drives the first bevel gear 21 and the small belt pulley 26 to rotate, the first bevel gear 21 can drive the second bevel gear 22 to rotate, the second bevel gear 22 can drive the first half gear 18 to rotate through the first rotating rod 17, the rack 19 can be intermittently driven to displace when the first half gear 18 rotates, the rack 19 drives the detection rod 7 to displace, the detection rod 7 drives the impact block 8 to displace, the detection rod 7 drives the first sliding block 6 to displace and the reset spring 13 to deform, and then when the first half gear 18 is separated from the rack 19, the impact block 8 is hammered downwards under the self-weight and the deformation recovery acting force of the reset spring 13, and the impact block 8 can intermittently impact the pile foundation and display detected data through a display screen;
s2: in addition, the small belt pulley 26 can drive the large belt pulley 28 to rotate through the belt 29 and reduce the speed, the large belt pulley 28 can drive the third bevel gear 30 to rotate through the fourth rotating rod 27, the third bevel gear 30 can drive the fourth bevel gear 31 to rotate, the fourth bevel gear 31 can drive the second half gear 34 to rotate through the second rotating rod 23, the second half gear 34 can intermittently drive the rotating gear 25 to rotate, the rotating gear 25 can drive the placing plate 2 to rotate through the third rotating rod 24, the placing plate 2 intermittently rotates by a certain angle and is matched with the impact block 8 intermittently falling above, the purpose of comprehensively detecting the pile foundation can be achieved, and the placing plate 2 always rotates by a certain angle when the impact block 8 upwards displaces;
s3: when the potential energy generated by the impact block 8 during impact needs to be increased, the potential energy can be adjusted by rotating the rotary knob, the rotary knob can drive the threaded rod 16 to rotate, the threaded rod 16 can drive the second slider 15 to displace downwards through the threaded hole when rotating, the second slider 15 can drive the limiting plate 14 to displace downwards, so that the deformation space of the reset spring 13 is compressed, the reset spring 13 can accumulate larger deformation recovery potential energy within the same displacement distance by the first slider 13, the potential energy generated by the impact block 8 during downward displacement is increased, and more abundant detection data are obtained;
s4: when the first half gear 18 is separated from the rack 19 and the second half gear 34 is separated from the rotating gear 25, the hydraulic cylinder 9 can be started at the moment, the hydraulic cylinder 9 drives the detection rod 7 to displace, the impact block 8 is indirectly enabled to apply pressure to the pile foundation, and a detection mode of gradually pressurizing can be realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The bearing capacity detection device for building pile foundation detection comprises a base (1) and is characterized in that a placing plate (2) is rotatably installed at the top of the base (1), two supporting columns (3) are fixedly connected to the top of the base (1), the top ends of the two supporting columns (3) are fixedly connected with a same top plate (4), one side, close to each other, of each supporting column (3) is fixedly connected with a same fixing plate (5), one side of each fixing plate (5) is provided with a first sliding groove, a first sliding block (6) is slidably installed in each first sliding groove, one side of each first sliding block (6) is fixedly connected with a detection rod (7), the bottom end of each detection rod (7) is fixedly connected with an impact block (8), the top of each top plate (4) is fixedly provided with a hydraulic cylinder (9), an output shaft of each hydraulic cylinder (9) is welded with a telescopic rod (10), and the telescopic rods (10) are matched with the detection rods (7), one side of fixed plate (5) is provided with hoist mechanism, and hoist mechanism cooperatees with measuring pole (7), is provided with rotation regulation mechanism in base (1), and the opposite side fixed mounting of fixed plate (5) has motor (11), and motor (11) cooperate with hoist mechanism and rotation regulation mechanism, place and be provided with pressure sensor on board (2), are provided with the display screen on base (1).
2. The bearing capacity detection device for detecting the building pile foundation according to claim 1, wherein a sliding rod (12) is arranged in the first sliding groove, a sliding hole is formed in the first sliding block (6), the sliding rod (12) is slidably mounted in the sliding hole, a return spring (13) is sleeved on the outer side of the sliding rod (12), a limiting plate (14) is sleeved on the outer side of the sliding rod (12) in a sliding manner, one end of the return spring (13) is fixedly connected with the bottom of the limiting plate (14), and the other end of the return spring (13) is fixedly connected with the top of the first sliding block (6).
3. The bearing capacity detection device for detecting the building pile foundation according to claim 1, wherein a second sliding groove is formed in an inner wall of one side of the first sliding groove, a second sliding block (15) is slidably mounted in the second sliding groove, a threaded rod (16) is rotatably mounted in the second sliding groove, the top end of the threaded rod (16) extends to the outer side of the fixing plate (5) and is fixedly connected with a rotating button, a threaded hole is formed in the second sliding block (15), the threaded rod (16) is threadedly mounted in the threaded hole, and one side of the second sliding block (15) is fixedly connected with the limiting plate (14).
4. The bearing capacity detection device for detecting the building pile foundation as claimed in claim 1, wherein the lifting mechanism comprises a first rotating rod (17) rotating on the fixing plate (5), one end of the first rotating rod (17) is fixedly connected with a first half gear (18), a rack (19) is fixedly connected to the detecting rod (7), the first half gear (18) is matched with the rack (19), a rotating shaft (20) is welded to an output shaft of the motor (11), a first bevel gear (21) is fixedly sleeved on the outer side of the rotating shaft, a second bevel gear (22) is fixedly connected to one end of the first rotating rod (17), and the second bevel gear (22) is meshed with the first bevel gear (21).
5. The bearing capacity detection device for detecting the building pile foundation according to claim 1, wherein the rotation adjustment mechanism comprises a transmission cavity arranged in the base (1), a second rotating rod (23) and a third rotating rod (24) are rotatably arranged in the transmission cavity, the top end of the second rotating rod (23) extends to the outer side of the base (1) and is connected with the placing plate (2), a second half gear (34) is fixedly sleeved on the outer side of the second rotating rod (23), a rotating gear (25) is fixedly sleeved on the outer side of the third rotating rod (24), and the rotating gear (25) is matched with the second half gear (34).
6. The bearing capacity detection device for detecting the building pile foundation as claimed in claim 1, wherein the rotation adjustment mechanism further comprises a small belt pulley (26) fixedly connected with the rotation shaft (20), a rotation through hole communicated with the transmission cavity is formed in the outer side of the base (1), a fourth rotation rod (27) is installed in the rotation through hole in a rotating mode, a large belt pulley (28) is fixedly connected with one end of the fourth rotation rod (27), the large belt pulley (28) and the small belt pulley (26) are sleeved with the same belt (29), a third bevel gear (30) is fixedly connected with the other end of the fourth rotation rod (27), a fourth bevel gear (31) is fixedly sleeved on the outer side of the second rotation rod (23), and the fourth bevel gear (31) is meshed with the third bevel gear (30).
7. The bearing capacity detection device for detecting the building pile foundation as claimed in claim 1, wherein two clamping mechanisms are symmetrically arranged on the top of the placing plate (2), each clamping mechanism comprises a fixed side plate (32) fixedly mounted on the top of the placing plate (2), a fastening bolt (33) is rotatably mounted on each side plate (32), and a clamping block is fixedly connected to one end of each fastening bolt (33).
8. The use method of the bearing capacity detection device for detecting the building pile foundation, which is provided by the claims 1-7, is characterized by comprising the following steps:
s1: when the device is used, the pile foundation is placed on the placing plate (2), then the clamping blocks on two sides fix the pile foundation on the top of the placing plate (2) by rotating the fastening bolts (33), so that displacement or deviation is avoided when impact force detection is carried out on the pile foundation, then the motor (11) is started, an output shaft of the motor (11) drives the rotating shaft (20) to rotate, the rotating shaft (20) synchronously drives the first bevel gear (21) and the small belt pulley (26) to rotate, the first bevel gear (21) can drive the second bevel gear (22) to rotate, the second bevel gear (22) can drive the first half gear (18) to rotate through the first rotating rod (17), the first half gear (18) can intermittently drive the rack (19) to displace when rotating, so that the rack (19) drives the detecting rod (7) to displace, the detecting rod (7) drives the impact block (8) to displace, and the detecting rod (7) drives the first sliding block (6) to displace and the reset spring (13) to deform, when the first half gear (18) is separated from the rack (19), the impact block (8) is hammered downwards under the self weight and the deformation recovery acting force of the return spring (13), and the impact block (8) can intermittently impact a pile foundation and display detected data through a display screen;
s2: in addition, the small belt pulley (26) can drive the large belt pulley (28) to rotate through the belt (29) and reduce the speed, the large belt pulley (28) can drive the third bevel gear (30) to rotate through the fourth rotating rod (27), the third bevel gear (30) can drive the fourth bevel gear (31) to rotate, the fourth bevel gear (31) can drive the second half gear (34) to rotate through the second rotating rod (23), the second half gear (34) can intermittently drive the rotating gear (25) to rotate, the rotating gear (25) can drive the placing plate (2) to rotate through the third rotating rod (24), the placing plate (2) intermittently rotates for a certain angle and is matched with an upper intermittently falling impact block (8), the purpose of comprehensively detecting the pile foundation can be achieved, and the placing plate (2) always rotates for a certain angle when the impact block (8) moves upwards;
s3: when the potential energy generated by the impact block (8) during impact needs to be increased, the potential energy can be adjusted by rotating the rotary knob, the rotary knob can drive the threaded rod (16) to rotate, the threaded rod (16) can drive the second slider (15) to displace downwards through the threaded hole during rotation, the second slider (15) can drive the limiting plate (14) to displace downwards, so that the deformation space of the reset spring (13) is compressed, the first slider (13) can enable the reset spring (13) to accumulate larger deformation recovery potential energy within the same displacement distance, the potential energy generated by the impact block (8) during downward displacement is increased, and more abundant detection data are obtained;
s4: when the first half gear (18) is separated from the rack (19) and the second half gear (34) is separated from the rotating gear (25), the hydraulic cylinder (9) can be started at the moment, the hydraulic cylinder (9) drives the detection rod (7) to displace, the impact block (8) is indirectly enabled to apply pressure to the pile foundation, and a detection mode of gradually increasing the pressure can be realized.
CN202210199699.3A 2022-03-02 2022-03-02 Bearing capacity detection device for building pile foundation detection and application method thereof Pending CN114563286A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115166837A (en) * 2022-08-16 2022-10-11 山东省煤田地质局第三勘探队 Portable hydrogeology intelligent measuring instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115166837A (en) * 2022-08-16 2022-10-11 山东省煤田地质局第三勘探队 Portable hydrogeology intelligent measuring instrument

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