CN211948606U - Simple and easy detection device of pile foundation sediment thickness - Google Patents

Abstract

The utility model provides a simple and easy detection device of pile foundation sediment thickness, put mechanism and survey hammer including fixed hanging down, survey the hammer including interior conical hammer and cover are established outside outer flat hammer of interior conical hammer, the hammer block lower part of interior conical hammer is taper portion, the hammer block top of interior conical hammer is equipped with solid fixed ring, the hammer block lateral part of interior conical hammer distributes from top to bottom has the ratchet, the prong of ratchet is towards oblique top, the hammer block lateral part of interior conical hammer still is equipped with spacing lug, the hammer block cavity of outer flat hammer, its hammer block lower part outside is equipped with and hammer block vertically balanced floating plate, the inner wall of outer flat hammer is equipped with the spacing lug position with interior conical hammer and the spacing recess that the shape is unanimous, the pawl is installed through the fixed axle in the inner wall lower part of outer flat hammer, pawl cooperation ratchet is around the fixed axle swing. The utility model provides a pair of simple and easy detection device of pile foundation sediment thickness only needs to transfer the survey hammer once and can directly acquire pile foundation sediment thickness, has simplified the measurement process, has improved measurement accuracy.

Description

Simple and easy detection device of pile foundation sediment thickness

Technical Field

The utility model relates to a simple and easy detection device of pile foundation sediment thickness belongs to construction appurtenance technical field.

Background

The pile foundation is widely applied to the field of bridge construction, the quality of pile forming quality directly influences the service life of a bridge, and therefore the control of the quality of the pile foundation is important. In the construction process, the thickness of the sediment before pouring concrete directly influences the bearing capacity of the pile bottom, a secondary measurement method is generally adopted in the method for measuring the thickness of the sediment in the current construction, a flat hammer and a conical hammer are sequentially lowered to the bottom of a pile foundation, the flat hammer floats on the surface of the sediment, the conical hammer sinks to the bottom, and the lengths of measuring ropes lowered twice are subtracted to obtain the thickness of the sediment. The method has complicated measuring steps, has higher requirements on the tension and the vertical degree of the measuring rope, often cannot measure accurate numerical values, and influences subsequent procedures.

Disclosure of Invention

In order to solve the not enough of prior art, the utility model provides a simple and easy detection device of pile foundation sediment thickness only needs to transfer measuring tool once and can directly acquire pile foundation sediment thickness, has simplified the measurement process, has improved measurement accuracy.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: the utility model provides a simple and easy detection device of pile foundation sediment thickness, put mechanism and survey hammer including fixed hanging down, survey hammer includes that interior conical hammer and cover establish including the outside outer flat hammer of conical hammer, the hammer block lower part of interior conical hammer is the taper portion, the hammer block top of interior conical hammer is equipped with solid fixed ring, the hammer block lateral part of interior conical hammer distributes from top to bottom has the ratchet, the prong of ratchet is towards oblique top, the hammer block lateral part of interior conical hammer still is equipped with spacing lug, the hammer block cavity of outer flat hammer, its hammer block lower part outside is equipped with the balanced kickboard with hammer block vertically, the inner wall of outer flat hammer is equipped with the spacing recess unanimous with spacing lug position and the shape of interior conical hammer, the pawl is installed through the fixed axle in the inner wall lower part of outer flat hammer, pawl cooperation ratchet is around the fixed axle swing.

The outer wall of the inner cone hammer is provided with scales.

The conical part of the inner conical hammer is provided with a sampling hole.

The fixed vertical releasing mechanism comprises a support and a rope winder positioned on the support, and a measuring rope of the rope winder is connected with the fixed ring through a D-shaped hook.

The utility model discloses based on the beneficial effect that its technical scheme had lies in:

(1) the utility model provides a simple and easy detection device of pile foundation sediment thickness integrates traditional hammer and awl hammer, realizes through the cooperation of thorn strip that interior hammer is the unidirectional displacement relative to the external hammer, when guaranteeing to receive up after whole survey hammer measurement finishes, interior hammer and the relative position of outer hammer keep in the measured value department, make things convenient for the reading to realize that the measuring tool is transferred once and obtain pile foundation sediment thickness value, simplified the measurement procedure;

(2) compared with the traditional measuring tool, the simple detecting device for the thickness of the pile foundation sediment provided by the utility model has the advantages that the inner cone hammer is always vertical to the balance floating plate of the outer flat hammer through the tubular structure of the outer flat hammer and the arrangement of the limiting mechanism, so that the inner cone hammer is ensured to be vertical when touching the bottom, and the measuring precision is improved;

(3) because the sediment of drilling bored concrete pile presents different states under different geological conditions, only knows sediment thickness and still can influence the bored concrete pile quality, for solving this problem, the utility model provides a pair of simple and easy detection device of pile foundation sediment thickness can set up the thief hole including the taper portion of awl hammer, carries out the sediment sample when measuring thickness, conveniently carries out the soil property and confirms, can furthest satisfy the site operation quality and control, save the secondary survey hole process before filling.

Drawings

Fig. 1 is the utility model provides a simple and easy detection device of pile foundation sediment thickness's structural schematic diagram.

Fig. 2 is a schematic view of the inner cone hammer structure.

Fig. 3 is a schematic cross-sectional structure diagram of the inner cone hammer and the outer flat hammer.

Fig. 4 is a schematic view of a measurement state.

In the figure: 1-inner cone hammer, 1 a-ratchet, 1 b-limit bump, 1 c-taper, 1D-sampling hole, 2-outer flat hammer, 2 a-fixed shaft, 2 b-pawl, 2 c-balance floating plate, 3-fixed ring, 4-D-shaped hook, 5-bobbin, 6-measuring rope, 7-left baffle, 8-right baffle, 9-first bearing, 10-second bearing, 11-crank, 12-sleeve, 13-limit bolt, 14-rotating shaft, 15-left leg, 15 a-first inclined strut, 15 b-second inclined strut, 16-right leg, 16 a-third inclined strut, 16 b-fourth inclined strut, 17-base, 17 a-first straight rod, 17 b-second straight rod, 17 c-third straight rod, 17 d-a second straight rod, 18-a pouring platform and 19-a steel casing.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The utility model provides a simple detecting device for pile foundation sediment thickness, referring to fig. 1 to 4, comprising a fixed vertical placing mechanism and a measuring hammer, wherein the measuring hammer comprises an inner cone hammer 1 and an outer flat hammer 2 sleeved outside the inner cone hammer 1, the lower part of the hammer body of the inner cone hammer 1 is a cone part 1c, the top of the hammer body of the inner cone hammer 1 is provided with a fixing ring 3, the side part of the hammer body of the inner cone hammer 1 is distributed with ratchets 1a from top to bottom, the tooth tips of the ratchets face to the upper oblique direction, the side part of the hammer body of the inner cone hammer 1 is also provided with a limit lug 1b, the hammer body of the outer flat hammer 2 is hollow, a balance floating plate 2c vertical to the hammer body is arranged on the outer side of the lower portion of the hammer body, a limiting groove consistent with a limiting lug 1b of an inner conical hammer 1 in position and shape is formed in the inner wall of an outer flat hammer 2, a pawl 2b is mounted on the lower portion of the inner wall of the outer flat hammer 2 through a fixing shaft 2a, and the pawl 2b is matched with a ratchet 1a to swing around the fixing shaft.

According to the provisions of technical regulations on sediment measurement in railway bridge bored pile construction, the weight of the measuring hammer suspended by the measuring rope is 4 kg-6 kg.

The outer wall of the inner cone hammer 1 is provided with scales.

The conical part 1c of the inner conical hammer 1 is provided with a sampling hole 1 d.

The fixed vertical releasing mechanism comprises a support and a rope winder positioned on the support, and a measuring rope 6 of the rope winder is connected with the fixed ring 3 through a D-shaped hook 4.

The stand includes a left leg 15, a right leg 16 and a base 17. The base 17 is formed by sequentially welding a first straight rod 17a, a second straight rod 17b, a third straight rod 17c and a fourth straight rod 17d end to end, and the intersection angles of the straight rods are all 90 degrees. The left leg 15 is formed by welding a first inclined strut 15a and a second inclined strut 15b, and is welded on a second straight rod 17b, and the intersection angle between every two first inclined strut 15a, second inclined strut 15b and second straight rod 17b is 60 degrees. The right supporting leg 16 is formed by welding a third inclined strut 16a and a fourth inclined strut 16b, and is welded on a fourth straight rod 17d, and the intersection angle between every two third inclined strut 16a, the fourth inclined strut 16b and the fourth straight rod 17d is 60 degrees. The left supporting leg 15, the right supporting leg 16 and the base 17 are made of angle steel with the model of less than 40mm multiplied by 3 mm.

The rope winder comprises a spool 5, a measuring rope 6, a left baffle 7, a right baffle 8, a first bearing 9, a second bearing 10, a crank 11, a sleeve 12, a limiting bolt 13 and a rotating shaft 14. The first bearing 9 is mounted on top of the left leg 15 and the second bearing 10 is mounted on top of the right leg 16. A plurality of cross bars are welded on the inner side of the left baffle 7 and are circumferentially arranged, the right baffle 8 is welded on the other end of each cross bar to form the bobbin 5, and the steel measuring rope 6 is wound on the bobbin 5. A rotating shaft 14 is welded on the outer side of the left baffle 7, so that the rotating shaft 14 passes through the second bearing 10, and a crank 11 is welded on the outer side of the right baffle 8, so that the crank 11 passes through the first bearing 9. A sleeve 12 is arranged at the handle of the crank handle 11, and a limit nut 13 is arranged at the end part. The crank 11 is phi 16 round steel, the sleeve is a round steel pipe with the outer diameter of 20mm and the wall thickness of 1mm, and the specification of the limit nut 13 is M16. The diameters of the left baffle 7 and the right baffle 8 are 25cm, the left baffle and the right baffle are processed by steel plates with the thickness of 1cm, and the cross rods arranged in a circular arc shape between the two baffles are processed by smooth steel bars with the diameter of 10 mm.

The utility model provides a pair of simple and easy detection device of pile foundation sediment thickness's concrete measurement step does:

(1) after hole cleaning is finished, a pouring platform 18 placed on a steel casing 19 is used as a measuring platform, and the device is placed at an opening on a pouring platform 17;

(2) installing a D-shaped hook 4 on a measuring rope 6, and inserting an inner conical hammer 1 downwards from the top of an outer flat hammer 2 until the conical tip of the inner conical hammer 1 is flush with the bottom of the outer flat hammer;

(3) the measuring hammer is integrally suspended and placed into the hole, when the balance floating plate 2c contacts the surface of the sediment, the position of the balance floating plate 2c is fixed, and the inner conical hammer 1 continues to move downwards;

(4) the conical tip is contacted with the bottom of the pile foundation, and the measuring rope 6 is loosened to suspend the measuring rope upwards and return to the platform; in the process, under the action of the ratchet mechanism, the relative positions of the inner conical hammer and the outer flat hammer are kept at a measured value, and the direct reading after the measuring hammer is recovered is the numerical value of the thickness of the sediment.

After the measurement is finished, the D-shaped hook 4 is taken down, and the inner conical hammer is pulled out from the bottom of the outer flat hammer to prepare for the next measurement.

The utility model provides a pair of simple and easy detection device of pile foundation sediment thickness only needs to transfer measuring tool once and can directly acquire pile foundation sediment thickness, has simplified measurement procedure, has improved measurement accuracy.

Modifications and variations of the present invention will be apparent to those skilled in the art in light of the foregoing description, and all such modifications and variations are intended to be included within the scope of the present invention as defined in the appended claims.

Claims (4)

1. The utility model provides a simple and easy detection device of pile foundation sediment thickness, puts mechanism and test hammer including fixed hanging down, its characterized in that: the measuring hammer comprises an inner cone hammer (1) and an outer flat hammer (2) sleeved outside the inner cone hammer (1), the lower part of a hammer body of the inner cone hammer (1) is a conical part (1c), a fixing ring (3) is arranged at the top of the hammer body of the inner cone hammer (1), ratchets (1a) are distributed on the side part of the hammer body of the inner cone hammer (1) from top to bottom, the tooth tips of the ratchets face obliquely upwards, a limiting lug (1b) is further arranged on the side part of the hammer body of the inner cone hammer (1), the hammer body of the outer flat hammer (2) is hollow, a balance floating plate (2c) vertical to the hammer body is arranged on the outer side of the lower portion of the hammer body, a limit groove in the position and shape consistent with that of a limit bump (1b) of an inner conical hammer (1) is arranged on the inner wall of an outer flat hammer (2), a pawl (2b) is installed on the lower portion of the inner wall of the outer flat hammer (2) through a fixed shaft (2a), and the pawl (2b) is matched with a ratchet (1a) to swing around the fixed shaft.

2. The simple and easy detection device of pile foundation sediment thickness of claim 1 characterized in that: the outer wall of the inner conical hammer (1) is provided with scales.

3. The simple and easy detection device of pile foundation sediment thickness of claim 1 characterized in that: the conical part (1c) of the inner conical hammer (1) is provided with a sampling hole (1 d).

4. The simple and easy detection device of pile foundation sediment thickness of claim 1 characterized in that: the fixed vertical releasing mechanism comprises a support and a rope winder positioned on the support, and a measuring rope (6) of the rope winder is connected with the fixing ring (3) through a D-shaped hook (4).

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