CN210718937U

CN210718937U - Pile hole sediment thickness measuring instrument

Info

Publication number: CN210718937U
Application number: CN201921927842.6U
Authority: CN
Inventors: 陈小华
Original assignee: Zhejiang Hecheng Engineering Management Co Ltd
Current assignee: Zhejiang Hecheng Engineering Management Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-06-09
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a pile hole sediment thickness measuring instrument, which comprises a supporting frame, a fixed cylinder is fixedly arranged on the supporting frame, a movable cylinder is arranged in the fixed cylinder, the lower end of the movable cylinder is provided with three telescopic columns, the lower ends of the three telescopic columns are respectively fixedly provided with a test rod, the side walls of the three test rods are respectively fixedly provided with scales, the upper end of the fixed cylinder is provided with a driving seat, the lower end of the driving seat is provided with a driving rod, the lower end of the driving rod penetrates through the upper end of the movable cylinder and is in rotating fit with the inner wall of the movable cylinder, the inner wall of the movable cylinder is fixedly provided with an internal thread, the side wall of the driving rod is fixedly provided with an external thread, the external thread is matched with the internal thread, the utility model has reasonable structure, the driving seat drives the driving rod to rotate, the driving rod can drive the movable cylinder to move downwards, the movable cylinder drives the telescopic columns and the test rods to move, the accuracy of the test is improved.

Description

Pile hole sediment thickness measuring instrument

Technical Field

The utility model relates to an engineering reason check out test set field, in particular to stake hole sediment thickness measurement appearance.

Background

When the pile is cast in place by drilling, a layer of sediment can be formed at the bottom of the pile hole due to the sedimentation of slurry or the collapse of the wall of the pile hole, when the thickness of the sediment is larger, the rigidity of the bottom of the pile is reduced, and the bearing capacity is allowed to be reduced, so that the measurement of the thickness of the sediment at the bottom of the hole is an indispensable part in the construction of the drilled pile. According to the regulations of the regulations, before concrete is poured, the thickness index of the sediment at the bottom of the hole is regulated, and the thickness index of the end bearing type pile is not larger than 50 mm; the friction type pile should not be larger than 100 mm. Firstly, the construction experience of the cast-in-place pile for many years is provided; second, in recent years, it has been shown from the results of pile tests with different sediment thicknesses at the pile bottom that the sediment thickness affects not only the exertion of the end resistance but also the exertion of the side resistance. This is one of the important findings of the load-bearing properties of cast-in-place piles in recent years, and the original specification is revised on the friction pile sediment thickness of 300 mm.

At present, pile hole sediment measuring instruments are generally adopted to measure the sediment thickness in pile holes. The common pile hole sediment measuring instrument only adopts a heavy measuring head, so that the heavy measuring head sinks into sediment under the action of gravity to finish the detection of the sediment thickness, however, the sediment thickness in the pile hole is not uniform, and an error exists inevitably when a single measuring head is used for detection. And the density of the sediment in the pile hole may be thicker, and the lower end of the measuring head is difficult to penetrate through the sediment to reach the bottom surface of the pile hole by the gravity of the measuring head, so that the measuring result has errors. In view of the above problems, a solution is proposed as follows.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stake hole sediment thickness measurement appearance has and can push down the measuring head through external force, makes the lower extreme of measuring head can reach the stake hole bottom really, and adopts three measuring head, can detect the sediment thickness of three positions in the stake hole to more accurate detection goes out the advantage of the downthehole sediment thickness of stake.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a pile hole sediment thickness measuring instrument comprises a support frame, wherein a fixed cylinder is fixedly arranged on the support frame, a movable cylinder is arranged inside the fixed cylinder, three telescopic columns are arranged at the lower end of the movable cylinder, the structures of the three telescopic columns are the same, a spring is arranged inside each telescopic column, the upper end of the spring is fixedly connected with the upper end inside each telescopic rod, the lower end of the spring is fixedly connected with the lower end inside each telescopic rod, test rods are fixedly arranged at the lower ends of the three telescopic columns, scales are fixedly arranged on the side walls of the three test rods, a driving seat is arranged at the upper end of each fixed cylinder, a driving rod is arranged at the lower end of each driving seat, the lower end of each driving rod penetrates through the upper end of the movable cylinder and is in running fit with the inner wall of the movable cylinder, internal threads are fixedly arranged on the inner wall of the movable cylinder, external threads are fixedly arranged on the side walls of the driving rods, the lower extreme of drive seat has set firmly the lantern ring, the upper end of actuating lever is inserted and is established in the lantern ring, and with lantern ring normal running fit, the upper end of actuating lever has set firmly the rotary trough, the turning block has set firmly on the inner wall of lantern ring, the turning block is located the lantern ring, and with lantern ring normal running fit, be equipped with a plurality of recesses on the turning block, the recess articulates there is the ejector pad, one side of ejector pad has set firmly the torsional spring, the bottom surface fixed connection of one side and recess that the ejector pad was kept away from to the torsional spring, a plurality of grooves that push away have set firmly on the lateral wall of swivel, the one end that the recess was kept away from to the ejector pad is located the push away.

By adopting the technical scheme, the support frame is moved to the position above the pile hole to be measured, the fixed cylinder is positioned right above the pile hole, the driving seat is rotated in the forward direction, the driving seat drives the lantern ring to rotate, the lantern ring drives the rotating block to rotate, so that the rotating block drives the plurality of push blocks to rotate, the push blocks can be erected under the action of the torsional spring, one end of each push block can enter the push groove, when the push blocks rotate, the push blocks can push the push grooves to rotate so as to drive the driving rod to rotate, the driving rod can drive the movable cylinder to move downwards through threads, the lower end of the movable cylinder can drive the three telescopic columns to move downwards, so that the three telescopic columns can drive the three test rods to move downwards, the lower ends of the three test rods can penetrate through sediments in the pile hole to reach the bottom surface of the pile hole, when the lower ends of the three test rods reach the bottom surface of the pile hole, the movable cylinder can compress the telescopic columns when moving downwards, so, the spring can give and remove a great resistance, make and remove a difficult lapse of removal, thereby make the push slot to the resistance grow of ejector pad, when the push slot reaches certain degree to the resistance of ejector pad, the push slot can make the ejector pad with the torsional spring compression to the resistance of ejector pad, thereby make the ejector pad rotate round articulated department, enter into the recess, the drive seat rotates this moment, can't make again and remove a lapse, confirm that the lower extreme of three test bars all has arrived stake hole bottom surface, three test bars can detect the three positions of sediment, make measuring result more accurate.

Preferably, the lower ends of the three test rods are fixedly provided with balancing weights which are conical.

By adopting the technical scheme, the balancing weight is made of metal with large mass, such as iron, the conical configuration block can conveniently penetrate through the sediments and reach the bottom of the pile hole, and the detection of the thickness of the sediments in the pile hole is facilitated.

Preferably, the inner wall of the fixed cylinder is symmetrically provided with two vertical guide grooves, the upper end of the outer wall of the movable cylinder is symmetrically and fixedly provided with two guide blocks, and the guide blocks are positioned in the guide grooves and are in sliding fit with the guide grooves.

By adopting the technical scheme, the guide block is positioned in the guide groove, so that the movable cylinder cannot be grabbed in the fixed cylinder and can only move up and down along the fixed cylinder, the telescopic column and the test rod are favorably pushed, and the test rod can better complete the detection of the thickness of the sediment.

Preferably, the support frame includes three stabilizer blades and a braced ring, three the stabilizer blade is connected with the lateral wall fixed of braced ring, the upper end of fixed section of thick bamboo outer wall has set firmly the regulation section, the diameter of regulation section is less than the diameter of fixed section of thick bamboo, the braced ring cover is established on the regulation section, and with regulation section sliding fit, three screw hole has been seted up on the lateral wall of braced ring, three all insert in the screw hole and be equipped with fastening screw, fastening screw and screw hole cooperation, fastening screw's one end is equipped with the holding block, fastening screw's one end is inserted and is established on the holding block, and with holding block normal running fit.

Adopt above-mentioned technical scheme, three stabilizer blades are the slope setting, make the fixed of support frame can be stable stand subaerial, the regulation section can reciprocate in the braced ring, realize the regulation to the canned motor height, the stake hole that the detection depth that makes the canned motor can be more convenient differs, improve the suitability of device, after the height of the canned motor has been adjusted, rotate three fastening screws, make fastening screw drive the lateral wall that the fastening block is close to the regulation section, thereby make the fastening block can hug closely the lateral wall of regulation section, the realization is exchanged the fixed of festival section.

Preferably, a fastening pad is fixedly arranged on one side, away from the fixing screw, of the fastening block, the fastening pad has elasticity, and the surface of the fastening pad is rough.

Adopt above-mentioned technical scheme, the fastening pad can increase the friction between fastening block and the regulation section lateral wall, makes the quilt that the regulation section can be better fixed.

Preferably, the inner edge of the supporting ring is fixedly provided with three hemispherical stabilizing blocks, the side wall of the adjusting section is provided with three stabilizing grooves in the vertical direction, and the stabilizing blocks are located in the stabilizing grooves and are in sliding fit with the stabilizing grooves.

By adopting the technical scheme, one end of each of the three stabilizing blocks is respectively positioned in the three stabilizing grooves, so that the adjusting section cannot rotate in the support ring, the stability of the fixing barrel is improved, and the sediment detection is facilitated.

Preferably, universal wheels are fixedly arranged at the lower ends of the three support legs.

By adopting the technical scheme, the universal wheels can facilitate the movement of the support frame, so that the support frame can be conveniently and quickly moved to the position above the pile hole to be detected.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a sectional view of the embodiment;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is a sectional view of the embodiment in another direction;

fig. 5 is an enlarged view of region B in fig. 3.

Reference numerals: 1. a support frame; 11. a support leg; 12. a branch ring; 13. a stabilizing block; 14. a universal wheel; 2. a fixed cylinder; 21. an adjustment section; 22. fastening screws; 23. a fastening block; 24. a fastening pad; 3. moving the drum; 31. a guide block; 4. a telescopic column; 41. a spring; 42. a test rod; 5. a driving seat; 51. a collar; 52. rotating the block; 53. a push block; 54. a torsion spring; 6. a drive rod; 61. and a balancing weight.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

As shown in fig. 1 to 5, the pile hole sediment thickness measuring instrument includes a support frame 1, the support frame 1 includes three support legs 11 and a support ring 12, the three support legs 11 are fixedly connected with a side wall of the support ring 12, and universal wheels 14 are fixedly arranged at lower ends of the three support legs 11. The support frame 1 can be conveniently moved through the universal wheels 14, so that the support frame 1 can be moved above a pile hole to be detected.

The support frame 1 is fixedly provided with a fixed cylinder 2, and the upper end of the outer wall of the fixed cylinder 2 is fixedly provided with an adjusting section 21. The support ring 12 is sleeved on the adjusting section 21 and is in sliding fit with the adjusting section 21. After the support frame 1 moves above the pile hole, the height of the fixed cylinder 2 is adjusted in the vertical direction along the support ring 12, so that the lower end of the fixed cylinder 2 can abut against the upper surface of the pile hole.

The inner edge of the supporting ring 12 is fixedly provided with three hemispherical stabilizing blocks 13, the side wall of the adjusting section 21 is provided with three stabilizing grooves in the vertical direction, and the stabilizing blocks 13 are positioned in the stabilizing grooves and are in sliding fit with the stabilizing grooves. The three stabilizing blocks 13 can prevent the fixed cylinder 2 from rotating in the support ring 12, so that the fixed cylinder 2 is more stable enough.

Three threaded holes are formed in the side wall of the support ring 12, fastening screws 22 are inserted into the three threaded holes, and the fastening screws 22 are matched with the threaded holes. One end of the fastening screw 22 is provided with a fastening block 23, and one end of the fastening screw 22 is inserted into the fastening block 23 and is rotatably matched with the fastening block 23. The fastening pad 24 is fixedly arranged on one side of the fastening block 23 away from the fixing screw, the fastening pad 24 has elasticity, and the surface of the fastening pad 24 is rough.

After the height of the fixed cylinder 2 is adjusted, the three fastening screws 22 are rotated, so that the three fastening screws 22 can drive the fastening blocks 23 to move, the fastening pads 24 on the three fastening blocks 23 can tightly abut against the side wall of the adjusting channel, the adjusting channel cannot move any more, the adjusting channel is fixed, and the fixed cylinder 2 is fixed.

The inside of a fixed cylinder 2 is provided with a movable cylinder 3, and the movable cylinder 3 is in sliding fit with the fixed cylinder 2. The symmetry is equipped with two vertical guide slots on the inner wall of fixed cylinder 2, and the upper end symmetry of removing 3 outer walls of a section of thick bamboo has set firmly two guide blocks 31, and guide block 31 is located the guide slot, and with guide slot sliding fit. The two guide blocks 31 are located in the two guide grooves and can slide along the two guide grooves, so that the movable cylinder 3 cannot rotate in the fixed cylinder 2 and can only move up and down along the fixed cylinder 2.

The upper end of a fixed section of thick bamboo 2 is equipped with drive seat 5, and the lower extreme of drive seat 5 is equipped with actuating lever 6, and the lower extreme of actuating lever 6 runs through the upper end of a removal section of thick bamboo 3, and the inner wall of a removal section of thick bamboo 3 has set firmly the internal thread, has set firmly the external screw thread on the lateral wall of actuating lever 6, external screw thread and interior screw-thread fit.

When the driving base 5 is rotated in the forward direction, the driving base 5 drives the driving rod 6 to rotate in the forward direction, so that the driving rod 6 drives the moving cylinder 3 to move downwards through the threads. When the driving seat 5 is rotated reversely, the driving seat 5 drives the driving rod 6 to rotate reversely, so that the driving rod 6 drives the movable barrel 3 to move upwards through threads, and the movable barrel 3 is adjusted.

The lower end of the movable cylinder 3 is provided with three telescopic columns 4, and the structures of the three telescopic columns 4 are the same. The inside of telescopic column 4 is equipped with spring 41, and the upper end of spring 41 and the inside upper end fixed connection of telescopic link. The lower end of the spring 41 is fixedly connected with the lower end of the inside of the telescopic rod. The lower extreme of three flexible posts 4 all sets firmly test bar 42, all sets firmly the scale on the lateral wall of three test bar 42, and the lower extreme of three test bar 42 all sets firmly balancing weight 61, and balancing weight 61 is conical.

When the position of the fixed cylinder 2 is fixed, the driving seat 5 is rotated in the forward direction, so that the movable cylinder 3 can move downward. The moving cylinder 3 pushes the three telescopic columns 4 to move downward, thereby allowing the three test bars 42 to move downward. The three test rods 42 can drive the balancing weight 61 to move downwards, the balancing weight 61 is made of metal with large mass and hardness, for example, iron, and the conical balancing weight 61 can easily penetrate through sediments in the pile hole to reach the bottom surface of the pile hole.

The height of three balancing weights 61 is all shorter, makes three test rod 42 also can stretch into in the sediment, and the sediment can pollute the scale on three test rod 42. When the test rod 42 is taken out from the pile hole, the worker can conveniently know the thickness of the sediments in the pile hole.

Adopt three test bars 42, can measure the three positions of the downthehole sediment of stake to make the staff can be more accurate know the downthehole sediment thickness of stake.

The lower extreme of drive seat 5 sets firmly lantern ring 51, and the upper end of drive rod 6 sets firmly the rotary trough, sets firmly on the inner wall of lantern ring 51 changes the piece 52, changes the piece 52 and is located the rotary trough normal running fit. The rotating block 52 is provided with a plurality of grooves which are hinged with pushing blocks 53. And a torsion spring 54 is fixedly arranged on one side of the pushing block 53, and one side of the torsion spring 54, which is far away from the pushing block 53, is fixedly connected with the bottom surface of the groove. The side wall of the rotary groove is fixedly provided with a plurality of push grooves, and one end of the push block 53, which is far away from the groove, is positioned in the push grooves and matched with the push grooves.

In the initial state, the push block 53 is erected under the elastic force of the torsion spring 54, so that one end of the push block 53 can enter the push groove. When the driving seat 5 is rotated, the driving seat 5 drives the sleeve ring 51 to rotate, and the sleeve ring 51 drives the rotating block 52 to rotate, so that the rotating block 52 can drive the pushing blocks 53 to rotate. One end of the push block 53, which is far away from the groove, can push the push groove to move, so that the push groove can drive the driving rod 6 to rotate.

When the three test rods 42 all reach the bottom surface of the pile hole, the driving seat 5 continues to rotate, and the driving seat 5 drives the moving cylinder 3 to move downwards, so that the moving cylinder 3 compresses the three telescopic columns 4, and the three springs 41 are compressed. The three springs 41 generate an upward elastic force on the moving cylinder 3, so that the moving cylinder 3 is subjected to a certain resistance when moving downward, and the more the three springs 41 are compressed, the greater the resistance.

The resistance of the moving cylinder 3 is transmitted to the push groove, so that the push block 53 is also subjected to larger resistance when pushing the push groove to move. When the resistance is larger than the elastic force of the torsion spring 54 to the push block 53, the push block 53 will be pressed into the groove, so that the push block 53 can not push the push groove to move any more. At this time, the moving cylinder 3 cannot be moved by continuing to rotate the driving base 5. The user will also find that the feel of rotating the driving seat 5 is different when rotating the driving seat 5, and thus will know that all three test rods 42 have reached the bottom of the stake hole.

The reverse rotation driving seat 5, when the pushing block 53 moves to the pushing groove in the reverse direction, the pushing block 53 can enter the pushing groove again under the action of the torsion spring 54, and due to the reverse rotation, the pushing block 53 can not rotate reversely around the hinged part, so that the pushing block 53 can really push the bracket to rotate reversely, the movable barrel 3 moves upwards, the three testing rods 42 are taken out from the pile hole, and the detection of the thickness of the sediment in the pile hole is completed.

Claims

1. The pile hole sediment thickness measuring instrument comprises a support frame (1) and is characterized in that a fixed cylinder (2) is fixedly arranged on the support frame (1), a movable cylinder (3) is arranged inside the fixed cylinder (2), the lower end of the movable cylinder (3) is provided with three telescopic columns (4), the structures of the three telescopic columns (4) are the same, a spring (41) is arranged inside the telescopic column (4), the upper end of the spring (41) is fixedly connected with the upper end inside the telescopic rod, the lower end of the spring (41) is fixedly connected with the lower end inside the telescopic rod, the lower ends of the three telescopic columns (4) are respectively fixedly provided with a test rod (42), scales are respectively fixedly arranged on the side wall of the three test rods (42), the upper end of the fixed cylinder (2) is provided with a driving seat (5), the lower end of the driving seat (5) is provided with a driving rod (6), the lower end of the driving rod (6) penetrates through the upper end of the movable barrel (3) and is in running fit with the inner wall of the movable barrel (3), an internal thread is fixedly arranged on the inner wall of the movable barrel (3), an external thread is fixedly arranged on the side wall of the driving rod (6), the external thread is matched with the internal thread, a lantern ring (51) is fixedly arranged at the lower end of the driving seat (5), the upper end of the driving rod (6) is inserted into the lantern ring (51) and is in running fit with the lantern ring (51), a rotating groove is fixedly arranged at the upper end of the driving rod (6), a rotating block (52) is fixedly arranged on the inner wall of the lantern ring (51), the rotating block (52) is positioned in the rotating groove and is in running fit with the rotating groove, a plurality of grooves are formed in the rotating block (52), a pushing block (53) is hinged to the grooves, a torsion spring (54) is fixedly arranged on one side of the pushing block (53), and the torsion spring (54) is fixedly connected with, the side wall of the rotary groove is fixedly provided with a plurality of push grooves, and one ends of the push blocks (53) far away from the grooves are positioned in the push grooves and matched with the push grooves.

2. The pile hole sediment thickness measuring instrument according to claim 1, wherein the lower ends of the three testing rods (42) are respectively fixedly provided with a balancing weight (61), and the balancing weights (61) are conical.

3. The pile hole sediment thickness measuring instrument according to claim 1, characterized in that two vertical guide grooves are symmetrically arranged on the inner wall of the fixed cylinder (2), two guide blocks (31) are symmetrically and fixedly arranged on the upper end of the outer wall of the movable cylinder (3), and the guide blocks (31) are positioned in the guide grooves and are in sliding fit with the guide grooves.

4. The pile hole sediment thickness measuring instrument according to claim 1, characterized in that the supporting frame (1) comprises three supporting legs (11) and a supporting ring (12), the three supporting legs (11) are fixedly connected with the side wall of the supporting ring (12), the upper end of the outer wall of the fixed cylinder (2) is fixedly provided with an adjusting section (21), the diameter of the adjusting section (21) is smaller than that of the fixed cylinder (2), the supporting ring (12) is sleeved on the adjusting section (21), and is in sliding fit with the adjusting section (21), three threaded holes are arranged on the side wall of the support ring (12), fastening screws (22) are inserted into the three threaded holes, the fastening screw (22) is matched with the threaded hole, one end of the fastening screw (22) is provided with a fastening block (23), one end of the fastening screw (22) is inserted into the fastening block (23) and is in running fit with the fastening block (23).

5. The pile hole sediment thickness measuring instrument according to claim 4, characterized in that a fastening pad (24) is fixedly arranged on one side of the fastening block (23) far away from the fixing screw, the fastening pad (24) has elasticity, and the surface of the fastening pad (24) is rough.

6. The pile hole sediment thickness measuring instrument according to claim 4, wherein three hemispherical fixing blocks (13) are fixedly arranged at the inner edge of the supporting ring (12), three fixing grooves in the vertical direction are arranged on the side wall of the adjusting section (21), and the fixing blocks (13) are positioned in the fixing grooves and are in sliding fit with the fixing grooves.

7. The pile hole sediment thickness measuring instrument according to claim 4, characterized in that universal wheels (14) are fixedly arranged at the lower ends of the three support legs (11).