CN212336120U - High strain detection device of prestressed foundation pile - Google Patents

Abstract

The utility model belongs to the technical field of prestressed foundation pile detection, and discloses a prestressed foundation pile high strain detection device, which comprises a guide frame, wherein the guide frame is sequentially provided with a clamping device, a heavy hammer, an automatic tripping device and a lifting device for clamping a prestressed foundation pile from bottom to top, the heavy hammer is detachably connected with the automatic tripping device, the upper end of the automatic tripping device is connected with the lifting device arranged at the upper end of the guide frame, the vertical central line of the clamping device and the vertical central line of the heavy hammer are on the same straight line, the upper end of the guide frame is provided with at least three first spherical hinging seats, each first spherical hinging seat is not arranged on the same straight line, the ball head of each first spherical hinging seat is connected with a first telescopic piece with adjustable length, one end of the first telescopic piece is connected with the ball head of the first spherical hinging seat, and the other end of the first telescopic piece is connected with the ball head of a second spherical hinging seat, the spherical articulated seat of second can be dismantled with the embedded anchor of prestressing force foundation pile and be connected, has solved the eccentric hammering that current high strain detection device exists and has emptyd easily after the weight whereabouts and have the problem of great potential safety hazard.

Description

High strain detection device of prestressed foundation pile

Technical Field

The utility model belongs to the technical field of prestressed foundation pile detects, concretely relates to prestressed foundation pile height detection device that meets an emergency.

Background

The high strain detection is a detection method for judging the vertical compression bearing capacity and the integrity of a single pile body, a heavy hammer (the weight is 1% -1.5% of the estimated single pile limit bearing capacity) is used for impacting a pile top in an experiment, so that the prestressed foundation pile can generate enough penetration, the response of the mass point stress and the acceleration of the pile body generated by the actual measurement is carried out, and the vertical bearing capacity and the integrity of the pile body of the single pile are judged through fluctuation theoretical analysis. The top of the pile is impacted by a heavy hammer to generate enough relative displacement between the pile and the soil so as to fully excite the soil resistance around the pile and the bearing force at the pile end. At present, the main detection methods of the high strain of the prestressed foundation pile mainly comprise a Keys method (Case), a CAPWAPC method, a waveform fitting method, a wave equation method and the like.

The invention discloses a prestressed foundation pile high-strain detection vehicle mainly comprising a tripod (or a quadruped) lifting and a crane (or a vehicle) lifting, for example, the invention patent with the application number of 201811116398.X discloses a prestressed foundation pile high-strain detection vehicle, which comprises a vehicle body, a heavy hammer, a spring acceleration device and a winch, wherein a rectangular opening is arranged at the tail end of a chassis of the vehicle body, rectangular guide frames are arranged at the left end and the right end of the rectangular opening, each guide frame comprises a cross beam and two vertically arranged support columns, an electrohydraulic telescopic rod is arranged at the top end of each support column, the electrohydraulic telescopic rods are connected with two ends of the cross beam of the guide frame, a vertically downward round rod is arranged at the center of the cross beam, the spring acceleration device comprises an upper spring seat, a lower spring seat, a telescopic upright post and a spring, first round through hole is arranged at the centers of the upper spring seat and the lower spring seat, the, the upper spring seat and the lower spring seat are fixedly connected in parallel in the horizontal direction through a plurality of telescopic stand columns, a first circular through hole of the upper spring seat and a first circular through hole of the lower spring seat are in the same straight line in the same vertical direction, a plurality of springs are connected between the upper spring seat and the lower spring seat, and a first circular through hole of the spring accelerating device is sleeved on the round rod and is installed on the bottom surface of the cross beam.

For example, utility model patent application No. 201520897072.0 discloses a prestressing force foundation pile height meets an emergency and detects isolated plant, including pile head fixing device, the vertical leading truck that sets up on pile head fixing device, it has direction drop hammer rolling device to be located the leading truck in proper order, the combination formula tup, automatic unhook device and electric hoist device, electric hoist device sets up the top at the leading truck, be connected with automatic unhook device between direction drop hammer rolling device and the automatic unhook device, the combination formula tup is built-in the leading truck, by a plurality of steel sheets, hammer bottom plate and hammer top plate are constituteed, the steel sheet is laid on the hammer bottom plate, be located the round hole that every steel sheet and hammer bottom plate surface have the same position, the round hole inserts on the connecting rod, the tip of connecting rod enlarges and is connected with the round hole zonulae occludens of hammer bottom plate, the afterbody of connecting rod spreads into the.

The utility model patent with application number 201420873649.X discloses a high strain detection hammering device for a prestressed foundation pile, which comprises a guide frame, a hammer body arranged in the guide frame and a hook mechanism connected with the hammer body, wherein the guide frame comprises a hollow cone platform and a support frame extending along the vertical direction of the hollow cone platform, and the cross sectional area of the top end of the hollow cone platform is equal to that of the bottom end of the support frame; the hammer body moves up and down in the guide frame under the traction of the hook mechanism; the hook mechanism is connected with a first steel wire rope and a second steel wire rope respectively, wherein the first steel wire rope is connected with the crane, and the second steel wire rope is connected with an adjusting mechanism used for triggering unhooking of the hook machine head.

However, the conventional detection device has the following problems in use:

1. the problem of eccentric hammering is easily caused by hoisting by using a crane or a crane, so that the data difference detected by the sensors at the left side and the right side of the prestressed foundation piles at the two sides is large;

2. the lifting height of the heavy hammer in the prior art is generally 20-50cm, which causes that the prestressed foundation pile is difficult to be driven, so that the penetration degree of the prestressed foundation pile is insufficient, the height of the heavy hammer has to be increased in order to achieve sufficient hammering force, however, the falling and falling of the heavy hammer are easy to cause the falling and falling of the guide frame (or also called foot rest, support frame and fixed frame) along with the lifting of the height of the heavy hammer, and great potential safety hazards are brought to workers and instruments.

Disclosure of Invention

The utility model provides a prestressed foundation pile high strain detection device, which can ensure that the eccentric hammering problem does not occur in the hammering process, so that the sensor data on two sides of the prestressed foundation pile are more real, and the accuracy of the data is improved; meanwhile, the falling of the heavy hammer can be prevented, and the falling of the heavy hammer can not cause the falling of the guide frame (or also called a foot rest, a support frame and a fixed frame), so that the safety of workers and related instruments and equipment can be guaranteed.

For solving the technical problem, the utility model discloses the technical scheme who adopts is:

a prestressed foundation pile high-strain detection device comprises a guide frame and is characterized in that the guide frame is sequentially provided with a clamping device, a heavy hammer, an automatic tripping device and a lifting device for clamping a prestressed foundation pile from bottom to top, the heavy hammer is detachably connected with the automatic tripping device, the upper end of the automatic tripping device is connected with the lifting device arranged at the upper end of the guide frame, the vertical central line of the clamping device and the vertical central line of the heavy hammer are on the same straight line, the upper end of the guide frame is provided with at least three first spherical hinge seats, each first spherical hinge seat is not arranged on the same straight line, the ball head of each first spherical hinge seat is connected with a first telescopic piece with adjustable length, one end of each first telescopic piece is connected with the ball head of each first spherical hinge seat, and the other end of each first telescopic piece is connected with the ball head of a second spherical hinge seat, the spherical articulated seat of second can dismantle with the embedded anchor of prestressing force foundation pile and be connected.

In some embodiments, the lower end of the guide frame is provided with at least three third spherical hinge seats, each third spherical hinge seat is not installed on the same straight line, and the third spherical hinge seats are detachably connected with the first telescopic piece or the second spherical hinge seat through a second telescopic piece with adjustable length.

In some embodiments, at least two guiding devices are disposed on the periphery of the weight, and a guiding groove which is matched with the guiding device and is disposed along the vertical direction is disposed inside the guiding frame, and the guiding device extends into the guiding groove.

In some embodiments, the guide means is a guide pulley or block that extends into the guide slot.

In some embodiments, the guide frame is provided with a sliding groove, a sliding block is arranged in the sliding groove, the sliding block can slide in the sliding groove and can be locked in the sliding groove, and a baffle or a stop bar for contacting with a handle of the automatic unhooking device so as to trigger the heavy hammer to be detached from the automatic unhooking device is mounted on the sliding block.

In some embodiments, the upper end and the lower end of the guide frame are respectively provided with a fixed plate, the fixed plate is provided with a sliding groove, the sliding groove is provided with a sliding block, the sliding block can slide in the sliding groove and can be locked in the sliding groove, and the first spherical hinge seat and the third spherical hinge seat are respectively fixedly arranged on the sliding block at the upper end of the guide frame and the sliding block at the lower end of the guide frame.

In some embodiments, the first and second telescopic parts each include a first connecting rod and a second connecting rod, the first and second connecting rods are connected with the adjusting cylinder, the first and second connecting rods are both connected with the adjusting cylinder through threads, and the length of the first and second connecting rods extending into the adjusting cylinder is adjusted through threads.

In some embodiments, the adjusting cylinder includes a cylinder body, the cylinder body is provided with a through hole for accommodating the first connecting rod and the second connecting rod, two sections of first thread section and second thread section with opposite spiral directions are processed in the through hole, the first connecting rod is in threaded connection with the first thread section, and the second connecting rod is in threaded connection with the second thread section.

In some embodiments, the adjusting cylinder comprises a cylinder body, the cylinder body is provided with a through hole for accommodating the first connecting rod and the second connecting rod, two ends of the cylinder body are respectively connected with an end cover in a rotating manner, and the end cover is provided with a threaded hole in threaded connection with the first connecting rod and the second connecting rod.

In some embodiments, the adjusting cylinder includes a cylinder body, the cylinder body is provided with a through hole for accommodating the first connecting rod and the second connecting rod, two ends of the cylinder body are respectively and fixedly connected with an end cover, the first connecting rod and the second connecting rod respectively penetrate through the end cover and extend into the cylinder body and are respectively provided with a first adjusting nut and a second adjusting nut, and the cylinder body is provided with a movable space for rotating the first adjusting nut and the second adjusting nut.

Compared with the prior art, the utility model discloses following beneficial effect has:

when the high strain detection device for the prestressed foundation pile is used, the guide frame is fixed on the prestressed foundation pile (the prestressed foundation pile for high strain detection) through the clamping device, so that the axle center of the prestressed pipe pile and the axle center of the free falling weight are on the same straight line, the first spherical hinge seat at the upper end of the guide frame is connected with the first telescopic piece, the first telescopic piece is further connected with the adjacent prestress, the first spherical hinge seat at the upper end of the guide frame is connected with the first telescopic piece, the first telescopic piece is further connected with the second spherical hinge seat arranged on the rest prestressed foundation piles (the prestressed foundation pile for high strain detection is not carried out), so that the upper end of the guide frame is fixed along different positions, the third spherical hinge seat at the lower end of the guide frame is finally connected with the second telescopic piece, the second telescopic piece is further connected with the second spherical hinge seat arranged on the rest prestressed foundation pile or is further connected with the first telescopic piece, the length of adjusting first extensible member and second extensible member for first extensible member and second extensible member tensioning, thereby stabilize the leading truck, prevent that the emergence of empting from appearing in the leading truck, ensured staff and instrument and equipment's safety. The utility model discloses the current prestressing force foundation pile of make full use of (engineering pile) is fixed the leading truck, has solved the problem that the leading truck can't stabilize and have great potential safety hazard when field construction.

And the utility model discloses a leading truck passes through the periphery of clamping device centre gripping at the prestressing force foundation pile, and clamping device's vertical central line and the vertical central line of weight are on same straight line, thereby guaranteed that the weight can the hammering put at the central point of prestressing force foundation pile after freely falling, prevent eccentric hammering, thereby make the numerical value of prestressing force foundation pile both sides sensor very close (even the same), thereby be convenient for carry out the fitting analysis to the speed curve and the power signal curve of gathering, the limit bearing capacity and the pile body integrality of foundation pile are detected out to the accuracy, the improvement detects the degree of accuracy of bearing capacity and pile body integrality to the prestressing force foundation pile.

The utility model discloses a set up guider in the outside of weight, set up the guide way on the leading truck, can in time correct when the weight falls the in-process and appears inclining to further prevent the condition of eccentric hammering.

The utility model discloses be provided with the sliding tray on the leading truck, set up the sliding block in the sliding tray, the sliding block can slide in the sliding tray and can lock in the sliding tray, install on the sliding block and be used for contacting each other with the handle of automatic unhooking device thereby triggering the weight and break away from the baffle or the shelves strip of automatic unhooking device, thereby can be according to the condition of prestressing force foundation pile at first adjusted the position of sliding block in the sliding tray (confirm the height that the weight falls promptly), when hoisting device drives automatic unhooking device and weight and rises, when the handle of automatic unhooking device contacts with baffle or shelves strip, push down the handle under the effect of baffle or shelves strip and make weight separate from each other from automatic unhooking device, reach the mesh of controlling the weight and rising height, the utility model discloses a structural design of baffle (shelves strip), can realize that the weight breaks away from the whereabouts automatically on appointed altitude position, compared with the prior art, the novel multifunctional electric wrench has the advantages that the manual pulling or knocking mode is adopted, the manual pulling or knocking handle of a worker is not needed, the labor intensity of the worker is reduced, and meanwhile the potential safety hazard of the worker is also reduced.

The utility model discloses an upper end and the lower extreme at the leading truck set up the fixed plate, be provided with the spout on the fixed plate, the spout has set the slider, first spherical articulated seat is installed on the slider of leading truck upper end, the articulated seat of third sphere is installed on the slider of leading truck lower extreme, make the articulated seat of first spherical articulated seat and third spherical articulated seat can adjust in the position of leading truck, so that adjust in a flexible way according to the fixed position of prestressing force foundation pile (the prestressing force foundation pile that does not carry out high strain detection) distribution condition to the leading truck, thereby improve the fixed flexibility of high strain detection device.

The utility model discloses an adjustable change of length is realized through the regulation between a regulation section of thick bamboo and first connecting rod, the second connecting rod to first extensible member and second extensible member to be convenient for according to the reasonable regulation of job site prestressing force foundation pile (the prestressing force foundation pile that does not carry out high strain detection) distribution, improve the utility model discloses an use flexibility, satisfy detection device's under the different conditions firm.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic enlarged view of a portion B of FIG. 1;

fig. 4 is an installation diagram of an embodiment of the automatic unhooking device of the present invention;

fig. 5 is a schematic connection diagram of an embodiment of the first pull rod, the second pull rod and the adjusting cylinder of the present invention;

fig. 6 is a schematic connection diagram of an embodiment of the first pull rod, the second pull rod and the adjusting cylinder of the present invention;

FIG. 7 is a schematic view of the connection between the end cap and the snap ring of FIG. 6;

fig. 8 is a schematic connection diagram of an embodiment of the first pull rod, the second pull rod and the adjusting cylinder of the present invention;

fig. 9 is a schematic structural diagram of an embodiment of the first and second connecting rods according to the present invention;

fig. 10 is a schematic structural diagram of an embodiment of the first and second connecting rods according to the present invention;

fig. 11 is a schematic structural view of an embodiment of the clamping device of the present invention;

fig. 12 is a schematic structural view of an embodiment of the clamping device of the present invention;

fig. 13 is a schematic structural view of an embodiment of the clamping device of the present invention;

the labels in the figure are: 1. guide frame, 2, clamping device, 21, left arc-shaped block, 22, right arc-shaped block, 23, adjusting screw, 24, fixing ring, 25, adjusting end cover, 26, through hole, 3, weight, 4, automatic unhooking device, 41, lifting lug, 42, hanging plate, 43, handle, 44, wedge-shaped press block, 45, pin shaft, 46, left clamping block, 47, right clamping block, 48, clamping groove, 5, lifting device, 51, winding machine, 52, steel rope, 6, first spherical hinge seat, 61, fixing plate, 62, sliding groove, 63, sliding block, 64, strip-shaped groove, 65, fastening bolt, 7, first telescopic piece, 71, first connecting rod, 711, first connecting section, 712, second connecting section, 713, connecting rope, 72, adjusting cylinder, 721, cylinder body, 722, through hole, 723, first thread section, 724, second thread section, 725, end cover, 726, snap ring, 727, clamping groove, 728, clamping groove, 728, and clamping groove, First adjusting nut, 729, second adjusting nut, 7210, activity space, 73, second connecting rod, 8, the articulated seat of second sphere, 9, the articulated seat of third sphere, 10, the second extensible member, 11, baffle or blend stop, 1101, mounting panel, 1102, sliding tray, 1103, sliding block, 1104, guide way.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplified description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to fig. 1, the high strain detection device for prestressed foundation piles of the present invention comprises a guiding frame 1 (or referred to as a fixed frame, a supporting frame), wherein the guiding frame 1 is sequentially provided with a clamping device 2, a heavy hammer 3, an automatic tripping device 4 and a lifting device 5 for clamping the prestressed foundation pile from bottom to top, the heavy hammer 3 is detachably connected with the automatic tripping device 4, the upper end of the automatic tripping device 4 is connected with the lifting device 5 installed at the upper end of the guiding frame 1, the vertical center line of the clamping device 2 and the vertical center line of the heavy hammer 3 are on the same straight line, the upper end of the guiding frame 1 is provided with at least three first spherical hinge seats 6, each first spherical hinge seat 6 is not installed on the same straight line, the ball head of each first spherical hinge seat 6 is connected with a first extensible member 7 with adjustable length, one end of the first extensible member 7 is connected with the ball head of the first spherical hinge seat 6, the other end of first extensible member 7 is connected with the bulb of the spherical articulated seat 8 of second, the spherical articulated seat 8 of second can be dismantled with the embedded anchor of prestressing force foundation pile and be connected.

The utility model discloses a column structure that leading truck 1 can adopt angle steel welding or threaded connection to form, and leading truck 1 can be the cuboid form, perhaps hexagonal prism, eight prism or by the limit number be greater than 8 and by the polygon prism that the even number limit is constituteed. In some embodiments, one or more first spherical hinge seats 6 are installed at the upper end of each side of the guide frame, for example, when the guide frame has a hexagonal prism shape, at least one first spherical hinge seat 6 is installed at each of six faces of the guide frame, and when the guide frame has a rectangular parallelepiped shape, at least one first spherical hinge seat 6 is installed at each of four faces of the guide frame, thereby fixing from various directions of the guide frame 1. In order to reduce the manufacturing cost of the guide frame 1 during the construction, the guide frame is preferably designed to be rectangular parallelepiped so that the guide frame 1 capable of accommodating the weight 3, the clamping device 2, and the like can be manufactured using a small amount of material.

As the utility model relates to a preferred mode installs three first spherical articulated seat 6 on the leading truck 1 at least to three first spherical articulated seat 6 is no longer on the same straight line, makes three first spherical articulated seat 6 form a triangle-shaped, and stabilizes on the prestressing force foundation pile on the different positions along the direction of difference respectively through first spherical handing-over seat 6, first extensible member 7 and the spherical handing-over seat 8 of second, ensures the steadiness of leading truck 1 installation.

What need to explain here, the utility model discloses a clamping device 2 is used for the centre gripping to carry out the prestressing force foundation pile that high strain detected immediately, and the spherical articulated seat 8 of second installs on all the other prestressing force foundation piles, because in a construction site, the quantity of prestressing force foundation pile all is many arranges, consequently, installs the spherical articulated seat 8 of second on prestressing force foundation pile, and the condition that can make full use of job site fixes leading truck 1.

The utility model discloses a hoisting device 5 that says can adopt hoist engine 51 and steel cable 52's structure, installs the hoist engine in the upper end of leading truck 1 promptly, and the tip of winding steel cable 52 is connected with automatic unhooking device 4 on hoist engine 51, and automatic unhooking device 4 is connected with weight 3 again to realize the promotion to the weight through hoist engine 51, so that carry out the high strain detection to the prestressing force foundation pile.

The utility model discloses a hoisting device 5 also can adopt the pneumatic cylinder to drive automatic unhook device 4 and the lift of weight 3, no longer gives details here. Preferably, in order to adapt to the severe construction environment in the field, the hoisting device 5 preferably adopts a winch with simple structure and reliable performance.

In some embodiments, the lower end of the guiding frame 1 is provided with at least three third spherical hinge seats 9, each third spherical hinge seat 9 is not installed on the same straight line, the third spherical hinge seat 9 is detachably connected with the first telescopic part 7 or the second spherical hinge seat 8 through a second telescopic part 10 with adjustable length, that is, one end of the second telescopic part can be connected to the first telescopic part, the other end of the second telescopic part can be connected to the second spherical hinge seat, and the installation stability of the guiding frame 1 can be further improved through the third spherical hinge seats 9 and the second telescopic part 10. Wherein the spherical hinge seats (including the first spherical hinge seat 6, the second spherical hinge seat 8 and the third spherical hinge seat 9) belong to the prior art products, and can be understood and understood by those skilled in the art, and are not described herein.

The third spherical cross-connecting seat 9 is installed in the same way as the first spherical hinge seat 6, and at least one third spherical hinge seat can be installed on each surface of the lower end of the guide frame. The third spherical hinge seat 9 may be installed directly below the first spherical hinge seat 6, and the installation position of the third spherical hinge seat 9 and the installation position of the first spherical hinge seat 6 may have a distance therebetween.

When the high strain detection device for the prestressed foundation pile is used, the guide frame is fixed on the prestressed foundation pile (the prestressed foundation pile for high strain detection) through the clamping device, so that the axle center of the prestressed pipe pile and the axle center of the free falling weight are on the same straight line, the first spherical hinge seat at the upper end of the guide frame is connected with the first telescopic piece, the first telescopic piece is further connected with the adjacent prestress, the first spherical hinge seat at the upper end of the guide frame is connected with the first telescopic piece, the first telescopic piece is further connected with the second spherical hinge seat arranged on the rest prestressed foundation piles (the prestressed foundation pile for high strain detection is not carried out), so that the upper end of the guide frame is fixed along different positions, the third spherical hinge seat at the lower end of the guide frame is finally connected with the second telescopic piece, the second telescopic piece is further connected with the second spherical hinge seat arranged on the rest prestressed foundation pile or is further connected with the first telescopic piece, the length of adjusting first extensible member and second extensible member for first extensible member and second extensible member tensioning, thereby stabilize the leading truck, prevent that the emergence of empting from appearing in the leading truck, ensured staff and instrument and equipment's safety. The utility model discloses the current prestressing force foundation pile of make full use of (engineering pile) is fixed the leading truck, has solved the problem that the leading truck can't stabilize and have great potential safety hazard when field construction.

And the utility model discloses a leading truck passes through the periphery of clamping device centre gripping at the prestressing force foundation pile, and clamping device's vertical central line and the vertical central line of weight are on same straight line, thereby guaranteed that the weight can the hammering put at the central point of prestressing force foundation pile after freely falling, prevent eccentric hammering, thereby make the numerical value of prestressing force foundation pile both sides sensor very close (even the same), thereby be convenient for carry out the fitting analysis to the speed curve and the power signal curve of gathering, the limit bearing capacity and the pile body integrality of foundation pile are detected out to the accuracy, the improvement detects the degree of accuracy of bearing capacity and pile body integrality to the prestressing force foundation pile.

Referring to fig. 2, in some embodiments, the upper end and the lower end of the guide frame 1 are respectively provided with a fixed plate 61, the fixed plate 61 is provided with a sliding groove 62, the sliding groove 62 is provided with a sliding block 63, the sliding block 63 can slide in the sliding groove 62 and can be locked in the sliding groove 62, and the first spherical hinge seat 6 and the third spherical hinge seat 9 are respectively fixedly arranged on the sliding block 63 at the upper end of the guide frame 1 and the sliding block 63 at the lower end of the guide frame 1. Make first spherical articulated seat and third spherical articulated seat can adjust in the position of leading truck to adjust in a flexible way the fixed position of leading truck according to prestressing force foundation pile (the prestressing force foundation pile that does not carry out high strain detection) distribution condition, thereby improve the fixed flexibility of high strain detection device.

In some embodiments, the fixing plates 61 on both sides of the sliding groove 62 are provided with strip-shaped grooves 64, the upper end surface of the sliding groove 63 covers a section of the strip-shaped groove 64, when locking is required, the locking screw sequentially penetrates through the strip-shaped grooves 64 and the sliding block 63 and is provided with a locking nut, and the sliding block 63 is fixed on the sliding groove 62 through the locking screw and the locking nut.

In some embodiments, the fixing plate 61 on both sides of the sliding groove 62 may also be provided with a plurality of through holes, and the locking screw sequentially passes through the through holes and the sliding block 63 and is provided with a locking nut, so that the position of the sliding block 63 on the sliding groove 62 is fixed by the locking screw and the locking nut.

In some embodiments, to improve the stability of the connection between the sliding block 63 and the sliding groove 62, the sliding groove 62 is designed as a dovetail groove, thereby ensuring the stable connection of the sliding block 63.

In some embodiments, the guiding frame 1 is provided with a sliding groove, and a sliding block is arranged in the sliding groove, the sliding block can slide in the sliding groove and can be locked in the sliding groove, and a baffle or a stop bar 11 is arranged on the sliding block and is used for contacting with a handle of the automatic unhooking device 4 so as to trigger the heavy hammer to be detached from the automatic unhooking device 4.

Referring to fig. 3, in some embodiments, a mounting plate 1101 is mounted on the guiding frame 1, a sliding groove 1102 is vertically formed on the mounting plate 1101, a sliding block 1103 is matched with the sliding groove 1102, and the baffle or stop bar 11 is mounted on the sliding block 1103, so as to adjust the height position of the baffle or stop bar 11. The utility model discloses be provided with the sliding tray on the leading truck, set up the sliding block in the sliding tray, the sliding block can slide in the sliding tray and can lock in the sliding tray, install on the sliding block and be used for contacting each other with the handle of automatic unhooking device thereby triggering the weight and break away from the baffle or the shelves strip of automatic unhooking device, thereby can be according to the condition of prestressing force foundation pile at first adjusted the position of sliding block in the sliding tray (confirm the height that the weight falls promptly), when hoisting device drives automatic unhooking device and weight and rises, when the handle of automatic unhooking device contacts with baffle or shelves strip, push down the handle under the effect of baffle or shelves strip and make weight separate from each other from automatic unhooking device, reach the mesh of controlling the weight and rising height, the utility model discloses a structural design of baffle (shelves strip), can realize that the weight breaks away from the whereabouts automatically on appointed altitude position, compared with the prior art, the novel multifunctional electric wrench has the advantages that the manual pulling or knocking mode is adopted, the manual pulling or knocking handle of a worker is not needed, the labor intensity of the worker is reduced, and meanwhile the potential safety hazard of the worker is also reduced.

In some embodiments, the mounting plate 1101 may be provided with a plurality of through holes or bar-shaped holes, and the sliding block is provided with a locking screw and a locking nut, the locking screw passes through the through holes or bar-shaped holes of the mounting plate 1101 in sequence and is fastened with the locking nut, so as to fasten the sliding block 1103 on the sliding groove 1102.

Referring to fig. 4, in some embodiments, at least two guiding devices are disposed on the periphery of the weight 3, and a guiding slot 1104 is disposed inside the guiding frame, wherein the guiding slot 1104 is vertically disposed and is engaged with the guiding devices, and the guiding devices extend into the guiding slot 1104. When the weight inclines during falling, the inclination can be corrected in time through the interaction of the guide device and the guide groove 1104, so that the eccentric hammering condition is further prevented.

In some embodiments, the guide device is a guide pulley 31 or a guide block, and the guide pulley 31 or the guide block extends into the guide groove 1104. The guide slot 1104 is formed in the mounting plate 1101, and the length of the guide slot 1104 is adapted to the drop height of the weight.

The width of the guide groove 1104 should be larger than the width of the guide pulley 31 so that the guide pulley 31 does not contact with the side wall of the guide groove 1104, and the guide pulley 31 may or may not contact with the bottom surface of the guide groove 1104.

In some embodiments, the guiding device can also be a guiding block, which is not in contact with the side wall and the bottom surface of the guiding slot 1104 when the weight is free to fall vertically, and is in contact with the guiding slot only when the weight is tilted to adjust and correct the weight.

In some embodiments, the upper and lower ends of the two sides of the weight are provided with guide pulleys or guide blocks, or the two sides of the upper end of the weight 3 are provided with guide pulleys and guide blocks.

In some embodiments, a plurality of guide pulleys or guide blocks may be disposed inside the guide frame 1, that is, the guide pulleys or guide blocks are mounted on the mounting plate 1101, and the guide grooves 1104 are opened on the outer circumference of the weight.

In some embodiments, the guiding device may also be a guiding hole formed on the weight 3, and the guiding frame 1 is provided with a guiding rod which is vertically installed in cooperation with the through hole, that is, the guiding hole and the guiding rod together form the guiding device; or a guide rod is arranged on the heavy hammer, a guide block is arranged on the guide frame 1, and a guide hole matched with the guide rod is formed in the guide block. Wherein the number of the guide holes is the same as the number of the guide rods.

The utility model discloses an automatic unhook device belongs to prior art product, and technical personnel in this field can both understand and understand. With reference to fig. 4, a schematic structural diagram of an automatic unhooking device 4 is shown, where the automatic unhooking device 4 includes a lifting lug 41, an upper end of the lifting lug 41 is connected to a hoisting device 5, and when the hoisting device 5 is a winch 51, a steel rope 52 wound on the winch 51 is fixedly connected to the lifting lug 41; the lower extreme fixedly connected with hanger plate 42 of lug 41, the lower extreme of hanger plate is connected with left grip block 46 and right grip block 47 respectively through round pin axle 45, the lower extreme of left grip block 46 and right grip block 47 is formed with and is used for centre gripping groove 48, the upper end of weight 3 is through the cable or couple centre gripping in centre gripping groove 48, it has handle 43 to go up still to sell hub connection on hanger plate 42 above left grip block 46 and the right grip block 47, it has wedge briquetting 44 to articulate on the handle, wedge briquetting 44 is located the perpendicular bisector between left grip block 46 and the right grip block 47 with the tie point of handle 43. The working process of the automatic unhooking device 4 is as follows: during the lifting process of the lifting device 5, the left clamping block 46 and the right clamping block 47 cannot rotate due to the action of the wedge-shaped pressing block 44, so that the heavy hammer is only clamped and driven to lift through the clamping groove 48; when the handle 43 of the automatic unhooking device 4 moves to the baffle or the stop bar 11, due to the blocking effect of the baffle or the stop bar 11, the handle 43 rotates, the wedge-shaped pressing block 44 continues to be pressed downwards, the wedge-shaped pressing block 44 enters the accommodating cavity formed between the left clamping block 46 and the right clamping block 47, the wedge-shaped pressing block 44 does not extrude the left clamping block and the right clamping block any more, under the self-weight action of the heavy hammer, the left clamping block 46 and the right clamping block 47 automatically rotate along the pin shaft 45, so that the clamping groove 48 is opened, and the heavy hammer is separated from the clamping groove 48 to move in a free falling mode.

The automatic unhooking device itself is known in the art, and the working process and principle thereof will be understood and appreciated by those skilled in the art, for example, the automatic unhooking device may also adopt the structure of the unhooking device disclosed in application No. 201720853355.4, and the structure of the automatic unhooking device will not be described herein.

In some embodiments, each of the first telescopic member 7 and the second telescopic member 10 includes a first connecting rod 71 and a second connecting rod 73, the first connecting rod 71 and the second connecting rod 72 are connected with an adjusting cylinder 72, the first connecting rod 71 and the second connecting rod 73 are both connected with the adjusting cylinder 72 in a threaded manner, and the length of the first connecting rod 71 and the length of the second connecting rod 73 extending into the adjusting cylinder 72 are adjusted through threads, so as to adjust the length of the first telescopic member 7 and the second telescopic member 10. The utility model discloses an adjustable change of length is realized through the regulation between a regulation section of thick bamboo and first connecting rod, the second connecting rod to first extensible member and second extensible member to be convenient for according to the reasonable regulation of job site prestressing force foundation pile (the prestressing force foundation pile that does not carry out high strain detection) distribution, improve the utility model discloses an use flexibility, satisfy detection device's under the different conditions firm.

With reference to fig. 5, in some embodiments, the adjusting cylinder 72 includes a cylinder body 721, the cylinder body 721 is provided with a through hole 722 for accommodating the first connecting rod 71 and the second connecting rod 73, two sections of first thread sections 723 and second thread sections 724 with opposite spiral directions are processed in the through hole 722, the first connecting rod 71 is in threaded connection with the first thread sections 723, and the second connecting rod 73 is in threaded connection with the second thread sections 724. In this embodiment, by directly providing two sections of threads with opposite spiral directions, when the cylinder 721 is rotated in one direction, the lengths of the first connecting rod 71 and the second connecting rod 73 extending into the cylinder 721 can be adjusted, for example, when the first connecting rod moves towards the inside of the cylinder, the second connecting rod also moves towards the inside of the cylinder; when the first connecting rod moves in the direction far away from the cylinder body, the second connecting rod also moves in the direction far away from the cylinder body, so that the length of the first telescopic part 7 and the length of the second telescopic part 10 are adjusted; so that the embodiment has the characteristic of convenient adjustment.

Referring to fig. 6, in some embodiments, the adjusting cylinder 72 includes a cylinder body 721, the cylinder body 721 is opened with a through hole 722 for accommodating the first connecting rod 71 and the second connecting rod 73, two ends of the cylinder body 721 are respectively connected with an end cap 725 in a rotating manner, and the end cap 725 is provided with a threaded hole for threaded connection with the first connecting rod 71 and the second connecting rod 731. In this embodiment, the end caps 725 are rotatably connected to both sides of the cylinder 721, so that the lengths of the first connecting rod 71 and the second connecting rod 73 extending into the cylinder 721 can be respectively adjusted by rotating the end caps 725 at both ends of the cylinder 721, thereby adjusting the lengths of the first telescopic member 7 and the second telescopic member 10.

Referring to fig. 7, in this embodiment, two ends of the cylinder 721 may be provided with snap rings 726, a snap groove 727 is formed between the snap rings 726 and the cylinder 721, and a part of the end cap is clamped in the snap groove 727, so as to limit the end cap 725. When the device is installed, the end cover is firstly placed at the end part of the cylinder body 721, then the snap ring 726 is buckled, and the snap ring 726 is connected with the cylinder body 721 through bolts, so that the end cover 725 can rotate and can limit under the action of the cylinder body and the snap ring.

Referring to fig. 8, in some embodiments, the adjusting cylinder 72 includes a cylinder body 721, the cylinder body 721 is provided with a through hole 722 for accommodating the first connecting rod 71 and the second connecting rod 73, two ends of the cylinder body 721 are respectively and fixedly connected with an end cap 725, the first connecting rod 71 and the second connecting rod 73 respectively penetrate through the end cap 725 and extend into the cylinder body 721 and are respectively provided with a first adjusting nut 728 and a second adjusting nut 729, and the cylinder body 721 is provided with a movable space 7210 for rotating the first adjusting nut 728 and the second adjusting nut 729.

In the use process of the adjusting cylinder 72 in this embodiment, first, the first connecting rod and the second connecting rod are respectively in threaded connection with the first adjusting nut 728 and the second adjusting nut 729, then extend into the movable space 7210 in the cylinder body 721, then the end cover 725 and the cylinder body 721 are fastened and connected through bolts, and when the length of the first connecting rod and the length of the second connecting rod extending into the cylinder body need to be adjusted, the first adjusting nut 728 and the second adjusting nut 729 are rotated, so that the length adjustment of the first telescopic piece 7 and the length adjustment of the second telescopic piece are realized.

Referring to fig. 9, in some embodiments, the first connecting rod 71 and the second connecting rod 73 may be a long rod, one end of the long rod is fixedly connected to the ball heads of the spherical hinge seats (the first spherical hinge seat, the second spherical hinge seat and the third spherical hinge seat) by rivets, screws or welding, and the other end of the long rod is provided with a threaded section for threaded connection with the adjusting cylinder 72.

Referring to fig. 10, in some embodiments, each of the first link 71 and the second link 73 may include a first connecting section 711 and a second connecting section 712, and a connecting rope 713 is connected between the first connecting section 711 and the second connecting section 712, wherein the first connecting section 711 is configured to be fixedly connected to a ball head of the spherical hinge seat (the first spherical hinge seat, the second spherical hinge seat, and the third spherical hinge seat) by a rivet, a screw, or welding, and the second connecting section 712 is configured to be screwed to the adjusting cylinder 72. The structure of this embodiment can realize the regulation of length by adjusting the length that second linkage segment 712 stretches into regulation section of thick bamboo 72, can realize the regulation of length by adjusting the length of connecting rope 713 again, is convenient for simultaneously transport and accomodate.

In some embodiments, the first telescopic element 7 and the second telescopic element 10 can also adopt structures such as an electric telescopic rod, a hydraulic cylinder and the like to realize the length adjustment of the first telescopic element and the second telescopic element.

With reference to fig. 11, in some embodiments, clamping device 2 includes left arc piece 21 and right arc piece 22, the circular arc radius of left arc piece 21 and right arc piece 22 and the mutual adaptation of external diameter of prestressing force foundation pile, left arc piece 21 and right arc piece 22 form a whole circle and carry out the cladding centre gripping with prestressing force foundation pile, left arc piece 21 and right arc piece 22 all are connected with adjusting screw 23, solid fixed ring 24 is installed to the inboard of leading truck 1, gu seted up on the fixed ring 24 and held the chamber, the one end of adjusting end cover 25 is arranged solid fixed ring and is held the chamber and can rotate in holding the chamber, the screw thread through-hole with adjusting screw 23 mutual adaptation is seted up at the middle part of adjusting end cover 25. The clamping device of this embodiment is when using, at first place clamping device in prestressing force foundation pile's periphery, then rotate gradually and adjust end cover 25, thereby make left arc piece 21 and right arc piece 22 move towards prestressing force foundation pile, only the centre gripping with prestressing force foundation pile is up to left arc piece 21 and right arc piece 22, at last rethread bolt and nut, the buckle realizes dismantling between left arc piece 21 and the right arc piece 22 and is connected, thereby realize the firm of leading truck and prestressing force foundation pile through clamping device.

The utility model discloses a set up clamping device 2, can enough improve the steadiness of leading truck 1 installation, simultaneously because clamping device's vertical central line and the vertical central line of weight are on same straight line to prevent eccentric hammering.

In some embodiments, the guiding frame 1 is provided with a through hole 26 for moving the adjusting screw 23, so as to satisfy the moving space required by the adjusting screw 23 to move towards the prestressed foundation pile or away from the prestressed foundation pile.

This embodiment differs from the embodiment illustrated in fig. 11 with reference to fig. 12 in that: the left arc-shaped block 21 and the right arc-shaped block 22 cannot form a whole circle, and the left arc-shaped block 21 and the right arc-shaped block 22 can only clamp one part of the prestressed foundation pile. In this embodiment, the circular arc radius of left arc piece 21 and right arc piece 22 can be greater than the external diameter of prestressing force foundation pile to in can carry out the centre gripping to not unidimensional prestressing force foundation pile, improve the utility model discloses a practicality.

This embodiment differs from the embodiment illustrated in fig. 11 with reference to fig. 13 in that: the left arc-shaped block 21 is fixedly connected with the guide frame 1, only the right arc-shaped block 22 is connected with the adjusting screw 23, the device can ensure that the vertical central line of the clamping device and the vertical central line of the heavy hammer are on the same straight line by taking the left arc-shaped block 21 as a positioning block, and the device has the characteristic of convenience in installation and positioning.

Above, without any formal and essential limitations of the invention, it should be pointed out that, for a person skilled in the art, without departing from the method of the invention, several improvements and additions will be possible, which shall also be considered as the scope of protection of the invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent to the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.

Claims (10)

1. A prestressed foundation pile high-strain detection device comprises a guide frame and is characterized in that the guide frame is sequentially provided with a clamping device, a heavy hammer, an automatic tripping device and a lifting device for clamping a prestressed foundation pile from bottom to top, the heavy hammer is detachably connected with the automatic tripping device, the upper end of the automatic tripping device is connected with the lifting device arranged at the upper end of the guide frame, the vertical central line of the clamping device and the vertical central line of the heavy hammer are on the same straight line, the upper end of the guide frame is provided with at least three first spherical hinge seats, each first spherical hinge seat is not arranged on the same straight line, the ball head of each first spherical hinge seat is connected with a first telescopic piece with adjustable length, one end of each first telescopic piece is connected with the ball head of each first spherical hinge seat, and the other end of each first telescopic piece is connected with the ball head of a second spherical hinge seat, the spherical articulated seat of second can dismantle with the embedded anchor of prestressing force foundation pile and be connected.

2. The prestressed foundation pile high-strain detection device as claimed in claim 1, wherein the lower end of the guide frame is provided with at least three third spherical hinge seats, each third spherical hinge seat is not installed on the same line, and the third spherical hinge seats are detachably connected with the first telescopic member or the second spherical hinge seat through a second telescopic member with adjustable length.

3. The prestressed foundation pile high-strain detecting device as claimed in claim 1, wherein said weight is provided at its periphery with at least two guide means, and said guide frame is provided at its inside with a guide groove engaged with the guide means and arranged in a vertical direction, said guide means extending into the guide groove.

4. The prestressed foundation pile high strain detecting device as claimed in claim 3, wherein said guide means is a guide pulley or a guide block, said guide pulley or guide block extending into a guide groove.

5. The prestressed foundation pile high-strain detecting device as claimed in any one of claims 1-4, wherein a sliding groove is provided on the guiding frame, a sliding block is provided in the sliding groove, the sliding block can slide in the sliding groove and can be locked in the sliding groove, and a baffle or a bar for contacting with a handle of the automatic unhooking device to trigger the heavy hammer to be detached from the automatic unhooking device is mounted on the sliding block.

6. The prestressed foundation pile high-strain detection device as claimed in any one of claims 1-4, wherein the upper end and the lower end of the guide frame are respectively provided with a fixed plate, the fixed plate is provided with a sliding groove, the sliding groove is provided with a sliding block, the sliding block can slide in the sliding groove and can be locked in the sliding groove, and the first spherical hinge seat and the third spherical hinge seat are respectively fixedly arranged on the sliding block at the upper end of the guide frame and the sliding block at the lower end of the guide frame.

7. The prestressed foundation pile high-strain detection device according to claim 1, wherein the first and second telescopic members each comprise a first connecting rod and a second connecting rod, the first and second connecting rods are connected with an adjusting cylinder, the first and second connecting rods are each in threaded connection with the adjusting cylinder, and the length of the first and second connecting rods extending into the adjusting cylinder is adjusted by threads.

8. The prestressed foundation pile high-strain detection device according to claim 7, wherein the adjustment barrel comprises a barrel body, a through hole for accommodating the first connecting rod and the second connecting rod is formed in the barrel body, a first threaded section and a second threaded section with opposite spiral directions are machined in the through hole, the first connecting rod is in threaded connection with the first threaded section, and the second connecting rod is in threaded connection with the second threaded section.

9. The prestressed foundation pile high-strain detection device according to claim 7, wherein the adjustment cylinder comprises a cylinder body, the cylinder body is provided with a through hole for accommodating the first connecting rod and the second connecting rod, two ends of the cylinder body are respectively and rotatably connected with an end cover, and the end cover is provided with a threaded hole in threaded connection with the first connecting rod and the second connecting rod.

10. The prestressed foundation pile high-strain detection device according to claim 7, wherein the adjustment cylinder comprises a cylinder body, the cylinder body is provided with a through hole for accommodating the first connecting rod and the second connecting rod, two ends of the cylinder body are respectively and fixedly connected with end covers, the first connecting rod and the second connecting rod respectively penetrate through the end covers and extend into the cylinder body and are respectively provided with a first adjustment nut and a second adjustment nut, and the cylinder body is provided with a movable space for rotating the first adjustment nut and the second adjustment nut.

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