CN210104704U

CN210104704U - Detection apparatus for ground power sounding

Info

Publication number: CN210104704U
Application number: CN201920548596.7U
Authority: CN
Inventors: 黄莹; 李岩; 陈政; 金瑜; 杨吉甫
Original assignee: ZHEJIANG GEOTECHNICAL ENGINEERING INVESTIGATION INSTITUTE
Current assignee: ZHEJIANG GEOTECHNICAL ENGINEERING INVESTIGATION INSTITUTE
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-02-21
Anticipated expiration: 2029-04-22

Abstract

The utility model discloses a detection apparatus for ground power sounding belongs to ground basis and detects technical field. The utility model discloses a guide arm, the bottom threaded connection of guide arm has the hammer block, the bottom threaded connection of hammer block has the feeler lever, the bottom threaded connection of feeler lever has the probe, the outside cover of guide arm is equipped with the hammer that falls, hammer and guide arm sliding connection fall, the pot head on guide arm is equipped with the disc, disc and guide arm sliding connection, the bottom of disc has three landing legs along the circumference equipartition, the one end of landing leg is articulated with the disc, and the other end is connected with the chassis through the universal joint, the axial lead coincidence of guide arm, hammer block, feeler lever, probe and disc. The utility model discloses simple structure, reasonable in design, convenient operation, the straightness that hangs down of feeler lever has obtained the assurance in whole testing process, has ensured the detection precision.

Description

Detection apparatus for ground power sounding

Technical Field

The utility model belongs to the technical field of the ground basis detects, especially, relate to a detection device of ground power sounding.

Background

Dynamic Penetration Test (DPT) is a common in-situ test method for geotechnical engineering investigation and foundation detection. The method comprises the steps of driving a probe with a certain size and a certain shape into soil by utilizing a certain drop hammer mass, and judging the name and the engineering property of a soil layer according to the driving difficulty, namely the number of penetration hammers. According to the difference of the drop weight mass and the lifting height, the device is respectively called light-duty, heavy-duty and extra-heavy-duty dynamic sounding. The light dynamic sounding is suitable for cohesive soil and silt, and is commonly used for detecting the bearing capacity of shallow foundation foundations and groove inspection of foundation pits.

However, the feeler lever of the existing light dynamic sounding device is easy to incline in the hammering process, so that the measuring result is influenced, and errors are easy to occur by manual counting, so that the ground dynamic sounding detection device is improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve the technical problem that above-mentioned prior art exists, provide a detection device of ground power sounding.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a detection apparatus for ground power sounding, includes the guide arm, the bottom threaded connection of guide arm has the hammer seat, the bottom threaded connection of hammer seat has the feeler lever, the bottom threaded connection of feeler lever has the probe, the outside cover of guide arm is equipped with the hammer that falls, hammer and guide arm sliding connection fall, the pot head of upper end of guide arm is equipped with the disc, disc and guide arm sliding connection, the bottom of disc has three landing legs along the circumference equipartition, the one end and the disc of landing leg are articulated, and the other end is connected with the chassis through the universal joint, the axial lead coincidence of guide arm, hammer seat, feeler lever, probe and disc.

The utility model fixes the disc through the support legs, so that the guide rod passing through the disc is kept stable in the radial direction, thereby preventing the guide rod in the disc from inclining in the hammering process, ensuring the verticality of the same axial feeler lever and ensuring the detection precision; and the bottom of the supporting leg is additionally provided with the base plate, so that the contact area between the supporting leg and the ground is increased, the pressure of the supporting leg to the ground is reduced, and the supporting leg cannot enable the supported disc to be not in a horizontal state due to the fact that the supporting leg is inserted into a foundation.

Preferably, the periphery of disc is equipped with the air level, can judge the skew direction whether level and disc of disc through observing the air level to judge whether perpendicular to the feeler lever, and then adjust the landing leg or arrange in order ground and make it resume perpendicularly, promoted the accuracy nature that detects.

Preferably, be equipped with vibration sensor and counter on the disc, vibration sensor and counter electric connection make the disc also produce the vibration when the hammer seat is hit to the drop hammer to the transmission vibrates to vibration sensor, and the signal that vibration sensor sent passes to the counter, and the cumulative hammering number of times of counter need not the extra record of operating personnel, and is convenient more accurate.

Preferably, the bottom of the chassis is provided with an anchor which extends into the ground to enhance the fixing effect of the supporting leg, so that the device can be prevented from inclining or overturning in the hammering process.

Preferably, a positioning ring is arranged between the disc and the drop hammer on the guide rod, so that the drop distance of the drop hammer is more accurate.

Preferably, the feeler lever is provided with scales, so that the length of the feeler lever extending into the ground can be directly observed conveniently.

Preferably, two first handles are symmetrically arranged on the periphery of the drop hammer, so that the drop hammer can be conveniently lifted by a worker.

Preferably, two second handles are symmetrically arranged on the periphery of the hammer seat, so that a person can conveniently pull out the feeler lever.

Preferably, the landing leg includes first landing leg and second landing leg, the lower extreme of first landing leg and the upper end threaded connection of second landing leg are convenient for process and accomodate.

Preferably, the disc is provided with a plurality of through holes, so that the disc can be conveniently grabbed by personnel, and the assembly and the carrying are convenient.

The utility model discloses beneficial effect who has: the utility model discloses simple structure, reasonable in design, convenient operation, the straightness that hangs down of feeler lever has obtained the assurance in whole testing process, and adopts the counter count, detects the precision height.

Drawings

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

fig. 2 is a schematic top view of the structure of fig. 1.

In the figure: 1. a guide bar; 2. a hammer base; 3. a feeler lever; 4. a probe; 5. dropping a hammer; 6. a disc; 7. a support leg; 8. a universal joint; 9. a chassis; 10. a level bubble; 11. a vibration sensor; 12. a counter; 13. anchoring the bolts; 14. a positioning ring; 15. calibration; 16. a first grip; 17. a second grip; 18. a first leg; 19. a second leg; 20. and a through hole.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the utility model provides a detection apparatus for ground power sounding, as shown in fig. 1-fig. 2, includes guide arm 1, the bottom threaded connection of guide arm 1 has hammer carrier 2, the bottom threaded connection of hammer carrier 2 has feeler lever 3, the bottom threaded connection of feeler lever 3 has probe 4, the outside cover of guide arm 1 is equipped with hammer 5 that falls, hammer 5 and guide arm 1 sliding connection fall, the last pot head of guide arm 1 is equipped with disc 6, disc 6 and guide arm 1 sliding connection, the bottom of disc 6 has three landing legs 7 along the circumference equipartition, the one end of landing leg 7 is articulated with disc 6, and the other end is connected with chassis 9 through universal joint 8, the axial lead coincidence of guide arm 1, hammer carrier 2, feeler lever 3, probe 4 and disc 6.

The periphery of disc 6 is equipped with air level 10, can judge the skew direction whether level and disc 6 of disc 6 through observing air level 10 to judge whether perpendicular to feeler lever 3, and then adjust landing leg 7 or arrange in order ground and make it resume perpendicularly, promoted the accurate nature that detects.

Be equipped with vibration sensor 11 and counter 12 on the disc 6, vibration sensor 11 and counter 12 electric connection make disc 6 also produce the vibration when drop hammer 5 strikes hammer seat 2 to the transmission vibrates to vibration sensor 11, and the signal that vibration sensor 11 sent passes to counter 12, and counter 12 accumulations hammering number of times need not the extra record of operating personnel.

The bottom of the chassis 9 is provided with an anchor 13, and the anchor 13 extends into the ground to enhance the fixing effect of the supporting leg 7, so that the device can be better prevented from inclining or overturning in the hammering process.

A positioning ring 14 is arranged on the guide rod 1 and between the disc 6 and the drop hammer 5, so that the drop distance of the drop hammer 5 is more accurate.

The feeler lever 3 is provided with scales 15, so that the length of the feeler lever 3 extending into the ground can be directly observed conveniently.

Two first handles 16 are symmetrically arranged on the periphery of the drop hammer 5, so that the drop hammer can be conveniently lifted by a worker.

The two second handles 17 are symmetrically arranged on the periphery of the hammer seat 2, so that a person can conveniently pull out the feeler lever.

The supporting leg 7 comprises a first supporting leg 18 and a second supporting leg 19, and the lower end of the first supporting leg 18 is in threaded connection with the upper end of the second supporting leg 19, so that the supporting leg is convenient to process and store.

The disc 6 is provided with a plurality of through holes 20, so that the disc 6 can be conveniently grabbed by personnel, and the assembly and the carrying are convenient.

During operation, assemble each part, observe air level 10, fix landing leg 7 and make disc 6 be the horizontality, mention the drop hammer 5, until the up end of drop hammer 5 supports holding ring 14, thereby make the free fall hammering hammer holder 2 of drop hammer 5 and throw into the soil layer with probe 4, and counter 12 counts according to the signal that vibration sensor 11 returned. In the hammering process, the leveling bubble 10 is observed constantly to ensure the perpendicularity of the feeler lever 3 in the whole detection process, and the scales 15 on the feeler lever 3 are observed, so that the depth of the probe 4 extending into the soil layer is judged.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should 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 these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a detection apparatus for ground dynamic sounding, includes the guide arm, its characterized in that: the utility model discloses a probe, including the guide arm, the bottom threaded connection of guide arm has the hammer seat, the bottom threaded connection of hammer seat has the feeler lever, the bottom threaded connection of feeler lever has the probe, the outside cover of guide arm is equipped with the hammer that falls, hammer and guide arm sliding connection fall, the upper end cover of guide arm is equipped with the disc, disc and guide arm sliding connection, the bottom of disc has three landing legs along the circumference equipartition, the one end and the disc of landing leg are articulated, and the other end is connected with the chassis through the universal joint, the axial lead coincidence of guide arm, hammer seat, feeler lever, probe and disc.

2. The apparatus for detecting dynamic sounding of ground according to claim 1, wherein: and the periphery of the disc is provided with a level bubble.

3. The apparatus for detecting dynamic sounding of ground according to claim 1, wherein: and the disc is provided with a vibration sensor and a counter which are electrically connected.

4. The apparatus for detecting dynamic sounding of ground according to claim 1, wherein: the bottom of the chassis is provided with an anchor, and the anchor extends into the ground.

5. The apparatus for detecting ground-based dynamic sounding according to claim 1, 2, 3 or 4, wherein: and a positioning ring is arranged on the guide rod and positioned between the disc and the drop hammer.

6. The apparatus for detecting ground-based dynamic sounding according to claim 1, 2, 3 or 4, wherein: scales are arranged on the feeler lever.

7. The apparatus for detecting ground-based dynamic sounding according to claim 1, 2, 3 or 4, wherein: two first handles are symmetrically arranged on the periphery of the drop hammer.

8. The apparatus for detecting ground-based dynamic sounding according to claim 1, 2, 3 or 4, wherein: two second handles are symmetrically arranged on the periphery of the hammer seat.

9. The apparatus for detecting ground-based dynamic sounding according to claim 1, 2, 3 or 4, wherein: the support legs comprise a first support leg and a second support leg, and the lower end of the first support leg is in threaded connection with the upper end of the second support leg.

10. The apparatus for detecting ground-based dynamic sounding according to claim 1, 2, 3 or 4, wherein: the disc is provided with a plurality of through holes.