CN212375831U

CN212375831U - Dynamic sounding instrument

Info

Publication number: CN212375831U
Application number: CN202020989399.1U
Authority: CN
Inventors: 孙金贵
Original assignee: Cangzhou Lufeng Technology Co ltd
Current assignee: Cangzhou Lufeng Technology Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-01-19
Anticipated expiration: 2030-06-03

Abstract

The utility model provides a power sounding appearance, relates to geotechnical engineering investigation technical field, and it includes probe, feeler lever, punching hammer, fall apart from the pole, the probe setting at the lower extreme of feeler lever, the upper end of feeler lever is equipped with the hammer bolster, hammer bolster top is connected with the lower extreme of falling apart from the pole, the pole that falls apart from down up in proper order the cover be equipped with punching hammer, joint, handrail, the top of falling apart from the pole is equipped with the guide bar, guide bar slidable pegs graft in the inside of falling apart from the pole, the upper end of guide bar is equipped with the hood, the inner chamber of punching hammer be equipped with ring groove, and the joint just is held to the inner chamber of punching hammer. The upper portion of the clamping head is provided with threads connected with the handrail, the side wall of the clamping head is provided with a clamping groove, a clamping block is arranged in the clamping groove, the outer end portion and the inner end portion of the clamping block are all hemispherical, the clamping block can slide left and right relative to the clamping groove, and the outer end portion of the clamping block can incline upwards relative to the clamping groove. The utility model has the advantages of simple operation, the fall is apart from accurate, labour saving and time saving.

Description

Dynamic sounding instrument

Technical Field

The utility model relates to a geotechnical engineering reconnaissance technical field, a dynamic sounding appearance specifically says so.

Background

The sounding instrument is mainly used for detecting the bearing capacity of a foundation and mainly comprises a probe, a sounding rod and a penetrating hammer 3. In the design and construction of soft soil foundation, the light dynamic sounding can quickly judge the property of soft soil, and the method is widely applied due to the characteristics of lightness, visual inspection method and the like. The penetrometer is an in-situ test method for judging the property of soil by using a certain drop hammer energy and the difficulty (penetration) of a conical probe with a certain size hitting the soil. It is required that the probing hole should be kept vertical before penetration. The punching hammer falls freely, and the falling distance is kept consistent.

However, in the current dynamic sounding instruments on the market, the hand is loosened to enable the punching hammer to fall freely when the punching hammer is dragged to a specified height through the handle, and the reciprocating operation is carried out in such a way. Because the weight of the punching hammer is heavy, the accuracy of each falling distance cannot be ensured during each lifting. And sometimes the feeler lever is inclined when the hand is loosened, thereby affecting the measurement accuracy.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming that above-mentioned prior art exists, the utility model aims to provide a dynamic sounding appearance, the device easy operation, the drop distance is accurate, labour saving and time saving.

In order to solve the problem, the utility model adopts the following technical scheme: a dynamic sounding instrument comprises a probe, a sounding rod, a penetrating hammer and a falling distance rod, and is characterized in that the probe is arranged at the lower end of the sounding rod, a hammer pad is arranged at the upper end of the sounding rod, the upper portion of the hammer pad is connected with the lower end of the falling distance rod, the falling distance rod is sequentially sleeved with the penetrating hammer, a clamping joint and a handrail from bottom to top, a guide rod is arranged above the falling distance rod and can be slidably inserted into the falling distance rod, a top cap is arranged at the upper end of the guide rod, an annular clamping groove is formed in the inner cavity of the penetrating hammer, and the clamping joint is just accommodated in the inner cavity of the penetrating hammer,

the upper portion of the clamping head is provided with threads connected with the handrail, the side wall of the clamping head is provided with a clamping groove, a clamping block is arranged in the clamping groove, the outer end portion and the inner end portion of the clamping block are all hemispherical, the clamping block can slide left and right relative to the clamping groove, and the outer end portion of the clamping block can incline upwards relative to the clamping groove.

Further: when the clamping head is sleeved on the falling distance rod, the inner end part of the clamping block is extruded by the falling distance rod, the outer end part of the clamping block extends out of the outer wall of the clamping head, the clamping head is pressed downwards at the moment, the outer end part of the clamping block inclines upwards, the clamping head just enters the inner cavity of the piercing hammer, when the handrail is lifted by hand to drive the clamping head to lift upwards, the clamping block is just clamped on the annular clamping groove, the piercing hammer moves upwards under the action of the handrail, when the piercing hammer jacks the top cap, the end part of the falling distance rod leaves the inner cavity of the clamping head, the outer end part of the clamping block is pressed downwards by the annular clamping groove, the inner end part of the clamping block is not extruded by the falling distance rod any more, the.

The utility model has the advantages that:

1. the device is simple to operate, accurate in falling distance, time-saving and labor-saving.

2. The outer end part of the clamping block is pressed by the annular clamping groove, the inner end part of the clamping block is not extruded by the falling distance rod any more, the clamping block retracts into the clamping groove, and the piercing hammer falls freely. The structural design can ensure that the punching hammer freely falls when being lifted to a fixed height at each time, the consistency of the falling distance at each time is ensured, and the measuring precision is further ensured.

3. The top of falling apart from the pole is equipped with the guide bar, and the guide bar slidable is pegged graft in the inside of falling apart from the pole, and the upper end of guide bar is equipped with the hood. The structural design can ensure that the grab can rapidly move downwards to enable the falling distance rod to stably pass through the clamping joint when the piercing hammer freely falls off at each time, and the clamping joint is convenient to rapidly move downwards to clamp the piercing hammer again.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a schematic structural view showing the state of the piercing hammer of the bayonet coupling of the present invention;

FIG. 2 is a schematic structural view of the piercing hammer in an almost freely falling state;

fig. 3 is a schematic structural view of the free-fall hammering pad state of the piercing hammer of the present invention;

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

in the figure: 1 drop distance rod, 2 handrails, 3 joints, 4 piercing hammers, 5 hammer pads, 6 feeler levers, 7 probes, 8 clamping blocks, 9 guide rods, 10 top caps, 11 clamping grooves and 12 annular clamping grooves.

Detailed Description

As shown in fig. 1, 2, 3 and 4, a dynamic sounding instrument comprises a sounding rod 7, a sounding rod 6, a penetrating hammer 5 and a falling distance rod 1, wherein the sounding rod 7 is arranged at the lower end of the sounding rod 6, a hammer pad 5 is arranged at the upper end of the sounding rod 6, the upper end of the hammer pad 5 is connected with the lower end of the falling distance rod 1, the falling distance rod 1 is sequentially sleeved with the penetrating hammer 4, a clamping joint 3 and a handrail 2 from bottom to top, a guide rod 9 is arranged above the falling distance rod 1, the guide rod 9 can be slidably inserted into the falling distance rod 1, a top cap 10 is arranged at the upper end of the guide rod 9, an annular clamping groove 12 is arranged in an inner cavity of the penetrating hammer 4, and the clamping joint 3 is just accommodated in the inner cavity of the penetrating hammer 4.

The upper portion of joint 3 be equipped with the screw thread that is connected with handrail 2, be equipped with draw-in groove 11 on the joint 3 lateral wall, be equipped with fixture block 8 in the draw-in groove 11, the outer tip and the interior tip of fixture block 8 are the hemisphere, fixture block 8 can be relative draw-in groove 11 horizontal slip, and the outer tip of fixture block 8 can be relative draw-in groove 11 tilt up.

When the clamping head 3 is sleeved on the falling distance rod 1, the inner end part of the clamping block 8 is extruded by the falling distance rod 1, the outer end part of the clamping block 8 extends out of the outer wall of the clamping head 3, the clamping head 3 is pressed downwards at the moment, the outer end part of the clamping block 8 inclines upwards, the clamping head 3 just enters the inner cavity of the piercing hammer 4, when the handrail 2 is lifted by hands to drive the clamping head 3 to lift upwards, the clamping block 8 is just clamped on the annular clamping groove 12, the clamping head 3 drives the piercing hammer 4 to move upwards under the action of the handrail 2, when the piercing hammer 4 jacks the top cap 10, the end part of the falling distance rod 1 leaves the inner cavity of the clamping head 3, the outer end part of the clamping block 8 is pressed downwards by the annular clamping groove 12, the inner end part of the clamping block 8 is not extruded by the falling distance rod 1. Then press down joint 3 once more, make joint 3 enter into through hammer 4, fixture block 8 just blocks on ring groove 12, joint 3 drives through hammer 4 upward movement under the effect of handrail 2, so reciprocal, realize the equal drop distance measurement of many times.

The present invention is not limited to the above embodiment.

Claims

1. A dynamic sounding instrument comprises a probe, a sounding rod, a penetrating hammer and a falling distance rod, and is characterized in that the probe is arranged at the lower end of the sounding rod, a hammer pad is arranged at the upper end of the sounding rod, the upper portion of the hammer pad is connected with the lower end of the falling distance rod, the falling distance rod is sequentially sleeved with the penetrating hammer, a clamping joint and a handrail from bottom to top, a guide rod is arranged above the falling distance rod and can be slidably inserted into the falling distance rod, a top cap is arranged at the upper end of the guide rod, an annular clamping groove is formed in the inner cavity of the penetrating hammer, and the clamping joint is just accommodated in the inner cavity of the penetrating hammer,

2. The dynamic penetrometer according to claim 1, wherein when the clamp head is sleeved on the drop rod, the inner end of the clamp block is pressed by the drop rod, the outer end of the clamp block extends out of the outer wall of the clamp joint, the clamp joint is pressed downwards, the outer end of the clamp block inclines upwards, the clamp joint just enters the inner cavity of the piercing hammer, when the clamp joint is lifted upwards by a hand, the clamp block is just clamped on the annular clamping groove, the clamp joint head moves upwards under the action of the handrail, when the piercing hammer pushes the top cap, the end of the drop rod leaves the inner cavity of the clamp joint, the outer end of the clamp block is pressed downwards by the annular clamping groove, the inner end of the clamp block is not pressed by the drop rod any more, the clamp block retracts into the clamping groove, and the piercing hammer falls freely.