CN111549831B

CN111549831B - Multi-angle pile foundation resistance to plucking performance detection device

Info

Publication number: CN111549831B
Application number: CN202010352155.7A
Authority: CN
Inventors: 乔圣民
Original assignee: Nantong Kechuang Construction Engineering Testing Co ltd
Current assignee: Nantong Kechuang Construction Engineering Testing Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-06-29
Anticipated expiration: 2040-04-28
Also published as: CN111549831A

Abstract

The invention discloses a multi-angle pile foundation uplift performance detection device, relates to the technical field of pile foundation performance detection equipment, and aims to solve the technical problem that the uplift performance of a pile foundation can only be detected in the vertical direction in the prior art.

Description

Multi-angle pile foundation resistance to plucking performance detection device

Technical Field

The invention relates to the technical field of pile foundation performance detection equipment, in particular to a multi-angle pile foundation uplift resistance detection device.

Background

With the rapid development of projects such as buildings, bridges and the like in China, pile foundations are increasingly widely applied, and in actual projects, the detection of the uplift resistance of the pile foundations is one of important steps of construction project design and project acceptance.

The traditional Chinese patent with the publication number of CN208280192U provides a pile foundation uplift resistance detection device, which comprises a clamping device and a support, wherein a liquid crystal display, a controller and a power supply are installed above the support, a control button is installed below the liquid crystal display, a slide way is arranged inside the clamping device, a left clamping jaw and a right clamping jaw are arranged below the clamping device, anti-skid teeth are arranged on the inner side surfaces of the left clamping jaw and the right clamping jaw, one ends of the left clamping jaw and the right clamping jaw penetrate through a slide groove to be connected with the slide way, a horizontal support plate is installed above the clamping device and is connected with the support in a welding manner, a jack is installed above the middle of the horizontal support plate, a balance plate is arranged above the jack and abuts against the balance plate, a pressure sensor is installed at the bottom of; when needs detect pile foundation resistance to plucking performance, at first place detection device in the pile foundation top make clamping device be in the pile foundation directly over, then reduce clamping device's height through the jack, after the height adjustment is good, thereby change the distance between left clamping jaw and the right clamping jaw through rotatory swiveling wheel and until pressing from both sides tightly, then make clamping device rise through the jack, the pressure that rises in-process pressure sensor and received increases gradually, show data through liquid crystal display simultaneously, and take notes.

However, the horizontal support plate and the support of the device for detecting the uplift resistance of the pile foundation are perpendicular to each other, and the jack is always in the vertical direction, so that the device can only apply tension to the pile foundation in the vertical direction, the tension direction and angle of the pile foundation cannot be adjusted, and the stress analysis of the pile foundation under the inclined load tension cannot be tested, so that the improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a multi-angle pile foundation uplift resistance detection device which has the advantage of testing the uplift resistance of a pile foundation at multiple angles.

In order to achieve the purpose, the invention provides the following technical scheme:

a multi-angle pile foundation uplift resistance detection device comprises a group of symmetrically arranged supports, wherein a testing device is arranged on each support, a cross frame is arranged between the two supports, a clamping device is arranged on each cross frame, a jack is fixedly arranged above the middle of each cross frame, the top end of each jack is fixedly connected with a balance plate, and the balance plates are mutually connected with the clamping devices; the transverse frame is rotatably arranged between the two supports, a driving shaft is fixedly arranged on the end wall of the transverse frame and positioned in the center of the transverse frame, the driving shaft penetrates through one of the supports and is fixedly connected with a turbine, a worm meshed with the turbine is rotatably arranged on the outer side wall of the support, and the length direction of the worm is arranged along the width direction of the support.

Through adopting the above technical scheme, the drive worm rotates, it rotates to drive the turbine, the drive shaft rotates along its axis direction this moment, thereby the crossbearer can rotate along its axis direction between two supports, change the angle between jack and the ground on the crossbearer, it is connected with the pile foundation to recycle clamping device this moment, the jack drives the balance plate and moves to keeping away from the ground direction, utilize testing arrangement to obtain the compressive property data of pile foundation, it tests the resistance to plucking performance of pile foundation to have realized a plurality of angles, multiple construction environment has been satisfied, the operation is thus simple, the suitability of equipment is greatly improved.

Further, both ends of the worm are connected with bearings, and the bearings are fixedly mounted on the outer side wall of the support through bearing seats.

Further, the end of the worm is fixedly connected with a driving rod.

Through adopting above-mentioned technical scheme, the bearing has reduced the frictional force that receives when the worm rotates, rotates the worm through the actuating lever, and the labour that has significantly reduced has reached laborsaving advantage.

Further, the fixed ring piece that is provided with in one side of turbine towards the support direction, the length direction of ring piece sets up along the circumferencial direction of turbine, offer on the lateral wall of support and supply the ring piece to insert and establish and gliding annular, the lateral wall of ring piece laminates with the inside wall of annular each other.

Through adopting above-mentioned technical scheme, the turbine is when rotating along the axis direction of drive shaft, and the ring piece rotates along its length direction in the annular, and ring piece surface and annular inner wall are laminated each other simultaneously, have played certain guide effect to the turbine, and the turbine is more stable when rotating, has improved the stability of equipment.

Furthermore, scale marks are arranged on one side, away from the direction of the support, of the turbine.

Through adopting above-mentioned technical scheme, the staff of being convenient for knows the turned angle of turbine constantly, improves the precision of test.

Further, the bottom of support has just been located and has seted up the support groove along its width direction on its end wall, it is provided with the supporting shoe to support the inslot cunning, the diapire of supporting shoe and support flushes each other, the top of supporting shoe is provided with the dovetail block along its length direction an organic whole, be provided with the dovetail that supplies the dovetail block to slide along its length direction on the end wall of support groove.

Through adopting above-mentioned technical scheme, after jack and clamping device rotated certain angle, the staff can drive the supporting shoe and slide to keeping away from the support direction in supporting the inslot, and the dovetail piece slides in the dovetail this moment, and the supporting shoe has increased the length of support bottom for equipment is when the function, and the support is more stable, and the support is difficult for taking place to rock, and the back of finishing using can retrieve the supporting shoe to supporting in the inslot, and then is convenient for carry equipment.

Furthermore, one end of the dovetail block, which is far away from the direction of the support, is fixedly connected with a pull ring.

Through adopting above-mentioned technical scheme, through drive pull ring drive dovetail block, the staff of being convenient for is a job operation.

Further, clamping device includes mounting panel, arm-tie, pull rod and embraces the ring, mounting panel and balance plate interconnect, the arm-tie is fixed to be provided with two in the bottom and the symmetry of mounting panel, the arm-tie is provided with two and rotates on the opposite face that is provided with two arm-ties, the pull rod is fixed to be set up between two arm-ties and the symmetry is provided with two, embrace the ring be provided with two and two pull rod between sliding connection, two embrace and pass through bolt interconnect between the ring.

Through adopting the above-mentioned technical scheme, when clamping device and pile foundation interconnect need be utilized, set up two embracing rings in the both sides of pile foundation, utilize the bolt screw rod to carry out reciprocal anchorage between two embracing rings, will embrace the ring and fix in the both sides of pile foundation, the jack drives the mounting panel and stimulates the arm-tie this moment, and the head rotates and sets up between two pull rods, make the embracing ring be in the horizontally state all the time, the embracing ring can not take place the slope along with the arm-tie, and then drive the embracing ring and stimulate, it is not only swift to set up like this, fixed effectual between clamping device and the pile foundation, make clamping device adapt to the pile foundation of different big small calibers simultaneously, the suitability of equipment is further improved.

Furthermore, anti-skidding teeth are arranged on the opposite surfaces of the embracing rings.

Through adopting above-mentioned technical scheme, increased the frictional force on embracing the ring surface, when embracing the ring and supporting each other tightly with the pile foundation lateral wall, it is difficult for and pile foundation break away from each other to embrace the ring.

In conclusion, the invention has the following beneficial effects:

1. the worm is driven to rotate by rotating the driving rod, the worm wheel is driven to rotate, the driving shaft rotates along the axis direction of the driving shaft at the moment, so that the cross frame can rotate along the axis direction of the cross frame between the two supports, the angle between the jack on the cross frame and the ground is changed, the clamping device is connected with the pile foundation at the moment, the jack drives the balance plate to move in the direction away from the ground, the compression resistance data of the pile foundation is obtained by using the testing device, the anti-pulling performance of the pile foundation can be tested at multiple angles, multiple construction environments are met, the operation is simple, and the applicability of the equipment is greatly improved;

2. the supporting block is driven to slide in the supporting groove in the direction away from the support, the dovetail block slides in the dovetail groove at the moment, and the supporting block increases the length of the bottom of the support, so that the support is more stable when the equipment is operated, and the support is not easy to shake;

3. through setting up two embracing rings in the both sides of pile foundation, utilize the bolt screw rod to carry out reciprocal anchorage between two embracing rings, will embrace and fix in the both sides of pile foundation, the jack drives the mounting panel and stimulates the arm-tie this moment, and the head rotates and sets up between two pull rods, make embracing ring be in the horizontally state all the time, the armring can not take place the slope along with the arm-tie, and then drive embracing ring and stimulate, set up like this and not only convenient operation is swift, fixed effectual between clamping device and the pile foundation, make clamping device adapt to the pile foundation of different big small calibers simultaneously, the suitability of equipment has further been improved.

Drawings

FIG. 1 is a schematic structural diagram of a multi-angle pile foundation uplift resistance detection device in an embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an exploded view of the connection between the turbine and the support in the embodiment;

FIG. 4 is an enlarged view of portion B of FIG. 1;

fig. 5 is an enlarged view of a portion C in fig. 1.

In the figure: 1. a support; 11. a support groove; 111. a dovetail groove; 12. a support block; 121. a dovetail block; 122. a pull ring; 2. a testing device; 21. a liquid crystal display screen; 3. a cross frame; 4. a clamping device; 41. mounting a plate; 42. pulling a plate; 43. pulling the disc; 44. a pull rod; 45. encircling; 451. anti-slip teeth; 5. a balance plate; 51. a guide bar; 6. a jack; 7. a drive shaft; 71. a turbine; 8. a worm; 81. a bearing; 82. a drive rod; 9. a ring block; 91. a ring groove; 10. scale lines are marked.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings, wherein the end of the worm is fixedly connected with a driving rod.

Example (b):

a multi-angle pile foundation uplift resistance detection device, refer to FIG. 1, it includes a set of supports 1 that are set up symmetrically, install the testing device 2 on the support 1, the testing device 2 includes the liquid crystal display 21, the controller (not shown in the figure), the pressure sensor (not shown in the figure) and power, it is used for revealing the measured data and taking notes, rotate through the pivot between two supports 1 and set up the crossbearer 3, the lower side of the crossbearer 3 installs the clamping device 4 used for connecting with the pile foundation, the crossbearer 3 can rotate along its axial direction, thus make the angle of the clamping device 4 and ground pile foundation change, fix with the jack 6 through the bolt on the crossbearer 3 and locating in its middle place, the end of the jack 6 connects with the balance plate 5, the pressure sensor locates between balance plate 5 and jack 6, and fix on the bottom of the balance plate 5, liquid crystal display 21, jack 6 and pressure sensor electric connection controller, controller electric connection power, 6 drive balance plate 5 of jack are kept away from or are close to crossbearer 3, balance plate 5 passes through guide bar 51 and 4 interconnect of clamping device, guide bar 51 runs through crossbearer 3, balance plate 5 drives clamping device 4 and removes when removing, guide bar 51 has played certain guide effect this moment, jack 6 drives clamping device 4 and stimulates the pile foundation, the pulling force that pressure sensor received increases gradually simultaneously, and show data through liquid crystal display 21.

Referring to fig. 1 and 2, a driving shaft 7 is fixedly arranged on the end wall of the cross frame 3 and at the center of the end wall, the driving shaft 7 is connected with a worm wheel 71 through one bracket 1 key, a worm 8 meshed with the worm wheel 71 is rotatably arranged on the outer side wall of the bracket 1, the length direction of the worm 8 is arranged along the width direction of the bracket 1, two ends of the worm 8 are connected with bearings 81, the bearings 81 are fixedly arranged on the outer side wall of the bracket 1 through bearings 81, and the bearings 81 reduce the friction force applied when the worm 8 rotates; the end part of the worm 8 is fixedly connected with a driving rod 82, the driving rod 82 drives the worm 8 to rotate, and then the worm wheel 71 is driven to rotate, so that the cross frame 3 rotates between the two brackets 1 along the axis direction, and the angle between the jack 6 and the clamping device 4 and the ground is changed.

Referring to fig. 2 and 3, a ring block 9 is fixedly welded on one side of the turbine 71 facing the direction of the support 1, the ring block 9 is arranged along the circumferential direction of the turbine 71 in the length direction, a ring groove 91 for the ring block 9 to be inserted and slide is formed in the outer side wall of the support 1, and the outer side wall of the ring block 9 is attached to the inner side wall of the ring groove 91; when the turbine 71 rotates along the axial direction of the driving shaft 7, the ring block 9 rotates in the ring groove 91 along the length direction thereof, and the ring block 9 plays a role of guiding, so that the turbine 71 is more stable when rotating.

Referring to fig. 2, scale marks 10 are arranged on one side of the turbine 71 away from the support 1, and the scale marks 10 facilitate the workers to know the rotation angle of the turbine 71, so as to improve the accuracy of the test.

Referring to fig. 1 and 4, a group of supporting grooves 11 are symmetrically formed in the bottom of the bracket 1 and on the end wall of the bracket 1 along the width direction of the bracket, supporting blocks 12 are arranged in the supporting grooves 11 in a sliding manner in a matching manner, the bottom walls of the supporting blocks 12 are flush with the bottom wall of the bracket 1, a dovetail block 121 is integrally arranged at the top of the supporting blocks 12 along the length direction of the supporting blocks, a dovetail groove 111 for sliding the dovetail block 121 is formed in the end wall of the supporting grooves 11 along the length direction of the supporting blocks, and a pull ring 122 is fixedly connected to one end, far away from the bracket; when the equipment is tested, the staff can pull the pull ring 122 to slide the supporting block 12 in the supporting groove 11 towards the direction far away from the support 1, the supporting block 12 increases the length of the bottom of the support 1, so that the support 1 is more stable when the equipment is operated, and meanwhile, the supporting block 12 is contracted into the supporting groove 11, so that the equipment is convenient to move.

Referring to fig. 1 and 5, the clamping device 4 includes a mounting plate 41, pulling plates 42, pulling disks 43, pulling rods 44 and hooping rings 45, the mounting plate 41 is disposed along the length direction of the cross frame 3 and is connected with the balance plate 5, the pulling plates 42 are disposed at the bottom of the mounting plate 41 by welding and fixing and are symmetrically disposed two, the pulling disks 43 are rotatably disposed on the opposite surfaces of the two pulling plates 42 by a rotating shaft, the pulling rods 44 are fixedly welded and disposed between the two pulling disks 43 along the length direction of the cross frame 3 and are symmetrically disposed two, the hooping rings 45 are in the prior art and are arc-shaped in length, the pulling rods 44 penetrate through the hooping rings 45, the hooping rings 45 are disposed with two and are slidably connected with the two pulling rods 44 and are used for contacting with the outer side wall of the pile foundation, and the hooping; when clamping device and pile foundation interconnect need be utilized, set up two embracing rings 45 in the both sides of pile foundation, utilize the bolt screw rod to carry out reciprocal anchorage between two embracing rings 45, thereby will embrace rings 45 and fix in the both sides of pile foundation, embrace rings 45 supports tightly the pile foundation surface, make embracing rings 45 and pile foundation lateral wall fully contact, jack 6 is when carrying out the butt with balance plate 5, balance plate 5 drives mounting panel 41 and stimulates arm-tie 42, and because arm-tie 42 rotates and is provided with between two arm-tie 42, thereby the staff can rotate the arm-tie 43 and make two embracing rings 45 be in the horizontally state all the time, when utilizing bolt screw rod to embrace rings 45 and pile foundation interconnect like this, clamping device's fixed effectual, and convenient operation is succinct, make clamping device adapt to the pile foundation of different big small calibers.

Referring to fig. 5, the anti-slip teeth 451 are integrally arranged on the opposite surface of the embracing ring 45, the anti-slip teeth 451 increase the friction force on the surface of the embracing ring 45, and when the embracing ring 45 is tightly abutted against the side wall of the pile foundation, the embracing ring 45 is not easy to be separated from the pile foundation.

The working principle is as follows:

when the compressive property of pile foundation under different angles is detected to needs, at first place detection device make clamping device 4 be in the pile foundation directly over in the pile foundation top, reduce clamping device 4's height through jack 6, treat that altitude mixture control finishes the back, through will embrace ring 45 and slide on pull rod 44, make the surface of embracing ring 45 and pile foundation contact each other, then carry out fixed connection between two embracing ring 45 through the bolt screw, will embrace ring 45 and pile foundation's surface counterbalance, rethread jack 6 drives balance plate 5 and rises this moment, balance plate 5 drives clamping device and rises, the pressure that rises in-process pressure sensor and receives increases gradually, show data through liquid crystal display 21 simultaneously, and the record.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A multi-angle pile foundation uplift resistance detection device comprises a group of symmetrically arranged supports (1), wherein a testing device (2) is installed on each support (1), a cross frame (3) is arranged between every two supports (1), a clamping device (4) is installed on each cross frame (3), a jack (6) is fixedly installed above the middle of each cross frame (3), a balance plate (5) is fixedly connected to the end of each jack (6), and each balance plate (5) is connected with each clamping device (4); the method is characterized in that: the balance plate (5) is connected with the clamping device (4) through a guide rod (51), the guide rod (51) penetrates through the transverse frame (3) and slides up and down, and the clamping device (4) is fixedly connected to the tail end of the guide rod (51); the transverse frame (3) is rotatably arranged between the two supports (1), the centers of the end walls at the two ends of the transverse frame (3) are fixedly provided with driving shafts (7), the driving shafts (7) penetrate through one of the supports (1) and then are fixedly connected with a turbine (71), the outer side wall of the support (1) is rotatably provided with a worm (8) which is meshed with the turbine (71), and the length direction of the worm (8) is arranged along the width direction of the support (1); clamping device (4) include mounting panel (41), arm-tie (42), drawing disk (43), pull rod (44) and embrace ring (45), mounting panel (41) and balance plate (5) interconnect, arm-tie (42) are fixed to be set up in the bottom of mounting panel (41) and the symmetry is provided with two, drawing disk (43) are provided with two and rotate on being provided with the opposite face of two arm-tie (42), pull rod (44) are fixed to be set up between two drawing disks (43) and the symmetry is provided with two, embrace ring (45) be provided with two and with two between pull rod (44) sliding connection, two embrace through bolt interconnect between ring (45).

2. The device for detecting the uplift resistance of the multi-angle pile foundation according to claim 1, wherein: both ends of worm (8) all are connected with bearing (81), bearing (81) pass through bearing frame fixed mounting on the lateral wall of support (1).

3. The device for detecting the uplift resistance of the multi-angle pile foundation according to claim 2, wherein: the end part of the worm (8) is fixedly connected with a driving rod (82).

4. The device for detecting the uplift resistance of the multi-angle pile foundation according to claim 1, wherein: turbine (71) are provided with ring piece (9) towards one side of support (1) direction is fixed, the length direction of ring piece (9) sets up along the circumferencial direction of turbine (71), offer on the lateral wall of support (1) and supply ring piece (9) to insert and establish and gliding annular (91), the lateral wall of ring piece (9) and the inside wall of annular (91) are laminated each other.

5. The device of claim 4, wherein the device comprises: and scale marks (10) are arranged on one side of the turbine (71) far away from the support (1).

6. The device for detecting the uplift resistance of the multi-angle pile foundation according to claim 1, wherein: support groove (11) have been seted up along its width direction on the bottom of support (1) and being located its end wall, it is provided with supporting shoe (12) to support inslot (11) internal slipping, the diapire of supporting shoe (12) diapire and support (1) flushes each other, the top of supporting shoe (12) is provided with dovetail (121) along its length direction an organic whole, be provided with dovetail (111) that supply dovetail (121) to slide along its length direction on the end wall of support groove (11).

7. The device of claim 6, wherein the device comprises: one end of the dovetail block (121) far away from the direction of the bracket (1) is fixedly connected with a pull ring (122).

8. The device for detecting the uplift resistance of the multi-angle pile foundation according to claim 1, wherein: anti-skid teeth (451) are arranged on the opposite surfaces of the embracing rings (45).