CN219864898U - Probe rod righting device for drilling in-situ test - Google Patents

Abstract

The utility model relates to a probe rod righting device for a drilling in-situ test, which comprises a positioning part and a righting part, wherein a first through hole through which a probe rod can pass is formed in the positioning part, the lower surface of the positioning part forms a first contact surface for contacting the ground, and the hole wall of the first through hole is perpendicular to the first contact surface; the centering part is connected below the positioning part, a first channel with two through ends is arranged in the centering part, and the inner wall of the first channel is perpendicular to the first contact surface; the first through hole is coaxially arranged and communicated with the first channel, and the hole wall of the first through hole is aligned with the inner wall of the first channel; the positioning part can be clamped on the ground, and the righting part can extend into the drilled hole. The probe rod centering device has the beneficial effects that the probe rod centering device realizes the centering of the probe rod in the vertical direction, replaces the original centering modes of hand centering, rope pulling and the like, is simple and easy to manufacture, and can acquire in-situ test data more safely and accurately.

Description

Probe rod righting device for drilling in-situ test

Technical Field

The utility model relates to the technical field of geotechnical engineering investigation, in particular to a probe rod righting device for a drilling in-situ test.

Background

The in-situ test of drilling is a method for determining the engineering characteristics of rock mass, and the physical and mechanical properties of the rock mass are measured directly in the drilling by an instrument, so that the mechanical parameters of the rock mass are obtained. The drilling in-situ test content comprises dynamic sounding static sounding, standard penetration test and the like. In-situ testing of sections 4 and 5 is performed by referring to chapter 10 of the "geotechnical engineering prospecting Specification" GB50021-2001, so that hammering eccentricity, inclination and lateral shaking of a probe rod are prevented, and in order to ensure the conditions, a manual approach to a heavy hammer is adopted, and the probe rod is held to achieve the effect of centralizing.

However, in the prior art, when in-situ test is performed, safety production accidents of injuring hands of hand-held personnel by heavy hammer injury easily occur; in addition, the hammering process can not completely ensure that the probe rod is perpendicular to the hole by adopting the existing modes of hand holding, rope pulling and the like, so that the accuracy of data obtained by an in-situ test is affected.

Therefore, a probe rod centering device suitable for in-situ drilling test needs to be developed to solve the existing technical problems.

Disclosure of Invention

First, the technical problem to be solved

In view of the above-mentioned shortcomings and disadvantages of the prior art, the utility model provides a probe rod righting device for a drilling in-situ test, which solves the problem that the safety production accident that a heavy hammer is easy to injure hands of a hand rest person during the in-situ test in the past is solved; the hammering process adopts the existing modes of hand holding, rope pulling and the like, so that the probe rod cannot be completely ensured to be perpendicular to the hole, and the technical problem of accuracy of data obtained by in-situ test is further affected.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

in a first aspect, an embodiment of the present utility model provides a probe rod centering device for a borehole in-situ test, including a positioning portion and a centering portion, where the positioning portion is provided with a first through hole through which a probe rod can pass, a first contact surface for contacting the ground is formed on a lower surface of the positioning portion, and a hole wall of the first through hole is perpendicular to the first contact surface; the centering part is connected below the positioning part, a first channel with two through ends is arranged in the centering part, and the inner wall of the first channel is perpendicular to the first contact surface; the first through hole is coaxially arranged and communicated with the first channel, and the hole wall of the first through hole is aligned with the inner wall of the first channel; the positioning part can be clamped on the ground, and the righting part can extend into the drilled hole.

Optionally, the probe rod centering device for in-situ drilling test, the centering part comprises a first centering piece and a second centering piece which are sleeved, one end of the first centering piece is connected to the outer edge of the first through hole, and the first channel is positioned in the first centering piece; the second centering component is coaxially sleeved outside the first centering component, and one end of the second centering component is connected to the first contact surface; the second centralizer can abut the inner wall of the bore.

Optionally, the probe rod righting device for drilling in-situ test, the positioning part further comprises a fixing plate, the bottom surface of the fixing plate is used as the first contact surface, the fixing plate is provided with a second through hole, and the righting part penetrates through the second through hole.

Optionally, the probe rod righting device for the in-situ test of drilling is characterized in that the fixing plate is a rubber plate or a steel plate with a convex structure on one side; when the fixing plate is a steel plate with a protruding structure on one side, the plane where the root of the protruding structure is located forms the first contact surface.

Optionally, the probe rod righting device for the in-situ test of drilling further comprises a lifting structure; the lifting structure is arranged on the upper surface of the positioning part.

Optionally, a probe rod righting device for drilling in-situ test, righting portion still includes extension structure, extension structure inside sets up the second passageway that both ends link up, extension structure connect in first righting piece or the second righting piece deviates from the one end of location portion, the second passageway with first passageway coaxial setting.

Optionally, the probe rod righting device for drilling in-situ test, the extension structure is a plurality of, and a plurality of extension structures end to end in proper order.

(III) beneficial effects

The beneficial effects of the utility model are as follows: according to the probe rod righting device for the in-situ test of the drill hole, the positioning part and the righting part which are perpendicular to each other are adopted, and the positioning part is used for fixing the whole device on the ground so as to prevent movement; meanwhile, the through hole penetrating through the positioning part is coaxially communicated with the channel penetrating through the centralizing part and is perpendicular to the ground, the probe rod for the drilling in-situ test is placed in the space which is vertical and is flush with the inner surface and is formed by the through hole and the channel, the centralizing of the probe rod in the vertical direction is realized, the centralizing modes of original hand centralizing, rope tension and the like are replaced, the probe rod centralizing device is simple and easy to manufacture, in-situ test data can be acquired more safely and accurately, parts of waste equipment can be directly utilized as parts, the cost is low, and the device has good popularization and application prospects in the drilling in-situ test.

Drawings

FIG. 1 is a schematic front view of an embodiment 1 of a probe rod centralizer for use in borehole in situ tests according to the utility model;

FIG. 2 is a schematic cross-sectional view of a probe rod centralizer for use in situ borehole testing of FIG. 1;

FIG. 3 is a schematic front view of the lengthening structure of example 1 of a probe centralizer for use in borehole in situ testing in accordance with the present utility model;

fig. 4 is a schematic front view of another structure of example 1 of a probe rod centralizer for use in situ borehole tests according to the utility model.

[ reference numerals description ]

1: a positioning part 1;11: a first through hole; 12: a first contact surface; 13: a fixing plate; 14: a rubber plate; 15: a steel plate; 16: a bump structure; 17: a second through hole; 18: a bolt structure; 2: a righting part; 21: a first channel; 22: a first centralizer; 23: a second centralizer; 24: an annular plate; 25: a lengthening structure; 26: a second channel; 27: connecting a female buckle; 28: connecting male buckles; 3: and a lifting structure.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", etc. are made to the orientation of fig. 1.

According to the probe rod centering device for the drilling in-situ test, aiming at the technical problems that when in-situ test, the probe rod is centered in modes of hand centering, rope pulling and the like, a safety production accident that a heavy hammer is used for injuring hands of hand staff easily occurs, meanwhile, the hammering process cannot completely ensure that the probe rod is perpendicular to a hole, and accuracy of data obtained in the in-situ test is affected, the positioning part and the centering part which are perpendicular to each other are adopted, and the positioning part fixes the whole device on the ground to prevent the movement; meanwhile, the through hole penetrating through the positioning part is coaxially communicated with the channel penetrating through the centralizing part and is perpendicular to the ground, the probe rod for the drilling in-situ test is placed in the space which is vertical and is flush with the inner surface and is formed by the through hole and the channel, the centralizing of the probe rod in the vertical direction is realized, the centralizing modes of original hand centralizing, rope tension and the like are replaced, the probe rod centralizing device is simple and easy to manufacture, in-situ test data can be acquired more safely and accurately, parts of waste equipment can be directly utilized as parts, the cost is low, and the device has good popularization and application prospects in the drilling in-situ test.

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

Example 1:

referring to fig. 1 and 2, an embodiment of the present utility model provides a probe rod righting device for a borehole in-situ test, including a positioning portion 1 and a righting portion 2; the positioning part 1 is used for fixing the whole device on the ground plane at the periphery of the in-situ test drilling hole to prevent the movement, and simultaneously, the contact surface (the first contact surface 12) of the positioning part 1 and the ground is kept horizontal by virtue of the horizontal supporting function of the ground, so that the probe rod can conveniently pass through, a first through hole 11 through which the probe rod can pass is formed in the positioning part 1, and the hole wall is perpendicular to the first contact surface 12, namely the first through hole 11 is formed in the vertical direction; the centering part 2 is used for centering the probe rod along the extending direction of the inner wall of the drill hole, the centering part 2 is connected below the positioning part 1, a first channel 21 with two through ends is arranged in the centering part 2, the inner wall of the first channel 21 is perpendicular to the first contact surface 12, namely, the first channel 21 is also vertically arranged, the first through hole 11 and the first channel 21 are coaxially arranged and communicated, the hole wall of the first through hole 11 is vertically aligned with the inner wall of the first channel 21, namely, the hole wall of the first through hole 11 is smoothly connected with the inner wall of the first channel 21, so that the influence of friction resistance of the inner wall on the probe rod is avoided, and the accuracy of experimental data is further ensured; when the drill rod is in operation, the centralizing part 2 stretches into a drill hole and is fixed in the drill hole under the limit of the positioning part 1, the drill hole is perpendicular to the ground plane of the periphery of the drill hole, and the first contact surface 12 below the positioning part 1 is perpendicular to the first through hole 11 and the first channel 21, so that after the probe rod enters the first channel 21 from the first through hole 11, the centralizing part 2 centralizes the probe rod even if the drill rod is parallel to the inner wall of the drill hole.

Wherein, the connection between the positioning part 1 and the righting part 2 can adopt a fixed connection mode such as welding; the shape of the positioning portion 1 is not particularly limited, and may be a plate body or other three-dimensional shape, as long as the first contact surface 12 is ensured to be a flat surface; the external shape profile of the righting segment 2 is not particularly limited, as long as it matches the drilled hole.

Referring to fig. 1 and 2, in order to reduce the weight of the centering device, simplify the manufacturing process and save the cost, the centering part 2 is arranged into a first centering piece 22 and a second centering piece 23 which are sleeved, so that the outer diameter of the centering part 2 meets the requirement of contacting the borehole wall, and the diameter of an internal channel can meet the requirement of centering the probe rod, therefore, the first centering piece 22 and the second centering piece 23 are arranged in an inner sleeve and an outer sleeve manner, and a first channel 21 is arranged in the first centering piece 22 and communicated with and connected with the first through hole 11 for directly contacting the drill rod; the second righting member 23 is sleeved outside the first righting member 22, the sleeving modes of the second righting member 23 and the first righting member 22 are various, one end of the second righting member 23 can be welded and fixed on the lower surface of the positioning part 1, or a connecting piece is arranged on the circumferential direction of the outer wall of the first righting member 22 by utilizing the supporting function of the first righting member 22, and the second righting member 23 is connected and fixed on the first righting member 22: for example, in order to better connect the first centering member 22 and the second centering member 23, to increase the stability of the centering portion 2, an annular plate 24 is disposed at the lower ends of the first centering member 22 and the second centering member 23, the inner edge of the annular plate 24 contacts the first centering member 22, the outer edge of the annular plate 24 contacts the second centering member 23, and the two centering members are fixedly connected by welding, that is, a manner in which the centering portion 2 is hollow is implemented; the outer peripheral diameter of the second centering member 23 is equal to the bore diameter of the drill hole, so that the outer wall of the second centering member 23 can abut against the inner wall of the drill hole, and the stability of the whole device during operation is further improved; the weight of the equipment is reduced as a whole, and meanwhile, the first centering component 22, the second centering component 23, the annular plate 24 and other components can be directly manufactured by adopting the parts of waste equipment, so that the material cost is reduced.

In addition, in order to facilitate the centralizing of the probe rod, the inner diameters of the first channel 21 and the first through hole 11 are slightly larger than the diameter of the probe rod, and the inner diameter is preferably 120-140% of the diameter of the probe rod.

Referring to fig. 1, 2 and 4, in order to increase the stability of the whole device with respect to the ground, the friction force between the device and the ground is increased, a fixing plate 13 is provided at the lower part of the positioning portion 1, the bottom surface of the fixing plate 13 is used as a first contact surface 12 to contact with the ground so as to adjust the friction force between the fixing plate and the ground, and meanwhile, a second through hole 17 is provided on the fixing plate 13, and the second through hole 17 is a through hole reserved for the righting portion 2. The fixing plate 13 is fixed by a bolt structure 18 on the positioning portion 1, and the material is not limited, and can be replaced or not placed according to the actual situation of the ground around the drilling hole.

Referring to fig. 2 and 4, when the hardness of the ground around the drill hole is high, the fixing plate 13 is made of a rubber plate 14 to increase the friction force, when the ground around the drill hole is relatively soft, the fixing plate 13 is made of a steel plate 15 with a protruding structure 16 at one side, the protruding structure 16 can be wedged into the ground under the action of pressure to form a gripping force to increase the friction force, and as shown in fig. 4, the protruding structure 16 is conical, the tip of the cone faces downwards, so that the protruding structure is convenient to insert into the ground.

Referring to fig. 1, in order to facilitate the placement and taking of the whole device in a drill hole, a lifting structure 3 is fixedly disposed on the upper surface of the positioning portion 1, and the lifting structure 3 may be a bracelet structure and may be symmetrically disposed or separately disposed, so as to facilitate the taking, which is not specifically limited herein.

Referring to fig. 3, in order to improve the applicability of the whole device, so as to adapt to drilling with different depths, the centralizing part 2 further comprises an extension structure 25, the extension structure 25 is used for increasing the length of the centralizing part 2, a second channel 26 with two through ends is arranged in the extension structure 25, the second channel 26 is consistent with the inner diameter of the first channel 21, the extension structure 25 is connected with one end of the extension structure through a connecting pin 28 in threaded connection with a connecting box 27 arranged in the lower end of the first centralizing piece 22, and the coaxial arrangement of the second channel 26 and the first channel 21 is completed, namely, the length of the first channel 21 is prolonged, so that the device adapts to drilling with different depths; the lengthened structures 25 set with different lengths can be arranged according to the needs, so that the lengthened structures are convenient to select; or, the lengthening structure 25 can be externally connected to the outer wall of the lower end of the second centering component 23 in a similar manner, but the inner diameter between the second channel 26 and the first channel 21 is ensured to be consistent, i.e. smooth connection of the inner wall is realized, so that the accuracy of test data is ensured not to be affected; in addition, the elongated structure 25 may be a plurality of end-to-end to achieve the desired length.

In addition, the probe rod righting device for the in-situ test of the drilling hole has the advantages that the parts can be manufactured by taking steel pipes or steel plates 15 in waste equipment, the cost is low, the structure is simple, and the practicability is good.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (7)

1. A probe rod righting device for drilling normal position test, its characterized in that:

comprises a positioning part (1) and a righting part (2),

a first through hole (11) through which the probe rod can pass is formed in the positioning part (1), a first contact surface (12) for contacting the ground is formed on the lower surface of the positioning part (1), and the hole wall of the first through hole (11) is perpendicular to the first contact surface (12);

the centering part (2) is connected below the positioning part (1), a first channel (21) with two through ends is arranged in the centering part (2), and the inner wall of the first channel (21) is perpendicular to the first contact surface (12);

the first through hole (11) is coaxially arranged and communicated with the first channel (21), and the hole wall of the first through hole (11) is aligned with the inner wall of the first channel (21);

the positioning part (1) can be clamped on the ground, and the righting part (2) can extend into a drilled hole.

2. The probe rod centralizer for in situ borehole tests of claim 1, wherein:

the righting part (2) comprises a first righting piece (22) and a second righting piece (23) which are sleeved with each other,

one end of the first centralizing piece (22) is connected to the outer edge of the first through hole (11), and the first channel (21) is positioned inside the first centralizing piece (22);

the second centering component (23) is coaxially sleeved outside the first centering component (22), and one end of the second centering component is connected to the first contact surface (12);

the second centralizer (23) is capable of abutting the inner wall of the borehole.

3. The probe rod centralizer for in situ borehole tests of claim 1, wherein:

the positioning part (1) also comprises a fixed plate (13),

the bottom surface of the fixing plate (13) is used as the first contact surface (12),

the fixing plate (13) is provided with a second through hole (17), and the righting part (2) passes through the second through hole (17).

4. A probe rod centralizer for use in borehole in situ tests as set forth in claim 3, wherein:

the fixing plate (13) is a rubber plate (14) or a steel plate (15) with a convex structure (16) at one side;

when the fixing plate (13) is a steel plate (15) with a protruding structure (16) on one side, the plane where the root of the protruding structure (16) is located forms the first contact surface (12).

5. The probe rod centralizer for in situ borehole tests of claim 1, wherein:

also comprises a lifting structure (3);

the lifting structure (3) is arranged on the upper surface of the positioning part (1).

6. The probe rod centralizer for in situ borehole tests of claim 2, wherein:

the righting part (2) also comprises an lengthening structure (25),

a second channel (26) with two through ends is arranged inside the lengthening structure (25),

the lengthening structure (25) is connected with one end of the first righting piece (22) or the second righting piece (23) which is far away from the positioning part (1),

the second channel (26) is arranged coaxially to the first channel (21).

7. The probe rod centralizer for in situ borehole tests of claim 6, wherein:

the plurality of the lengthening structures (25) are sequentially connected end to end.