CN219808413U - Device capable of measuring distance of large-diameter concrete pile sounding pipe across obstacle - Google Patents

Abstract

The utility model relates to a measuring device for crossing an obstacle, in particular to a device capable of measuring the distance of a large-diameter concrete pile acoustic pipe crossing the obstacle, which comprises a left telescopic arm, a right telescopic arm and a horizontal rule which have identical structures; the top ends of the left outermost section rod of the left telescopic arm and the right outermost section rod of the right telescopic arm are hinged through a hinge; the tail end of the innermost section bar is respectively provided with a magnet; the tail end of the left outermost section rod is rotatably connected with one end of the level bar, the tail end of the right outermost section rod is provided with a guide limiting block, and the other end of the level bar movably penetrates through a guide hole of the guide limiting block so that the left outermost section rod, the right outermost section rod and the level bar form an isosceles triangle. The utility model solves the problems of difficult direct measurement and inaccurate data of the sound tube crossing the obstacle in the prior art, has simple structure, convenient operation, convenient carrying, wide application range, rapidness and accuracy, improves the working efficiency and has good practicability.

Description

Device capable of measuring distance of large-diameter concrete pile sounding pipe across obstacle

Technical Field

The utility model relates to a measuring device for crossing an obstacle, in particular to a device capable of measuring the distance of a large-diameter concrete pile acoustic pipe crossing the obstacle.

Background

Reliable-quality buildings are not separated from solid foundations, and with the rapid development of economy in China, various buildings are pulled up, and the quality of foundation foundations becomes the root of building safety. The pile foundation is the most widely used type in the current engineering construction, especially the rigid foundation such as concrete piles, and the application is very wide from high-rise buildings to roads and bridges. The pile body integrity evaluation is used as one of important indexes for evaluating the pile foundation quality, and plays a role in the field of engineering detection. The pile body integrity detection method comprises a core drilling method, a low strain method, a high strain method, an acoustic wave transmission method and the like.

The large-diameter ultra-long concrete pile is required to detect the integrity of the pile body by adopting an acoustic wave transmission method. The principle of detecting pile body integrity by using the acoustic wave transmission method is as follows: the quotient of the two acoustic tube distances and the wave propagation time is equal to the wave propagation speed. The net distance between the outer walls of the actually buried metal sounding pipes is accurately measured at the pile top before detection and is used as an important parameter for sounding calculation. The accuracy of distance measurement directly influences the wave speed, thereby influencing the judgment of pile body quality. Especially, there are other structures in the middle of the stake, it can keep off between the sounding pipes, and the clear distance between sounding pipe outer wall can't directly measure with the ruler, and the measuring tool that the detection tool that is used still does not have can stride across the barrier yet, appears influencing the circumstances of calculation of wave velocity because of measuring the distance inaccuracy.

Referring to fig. 1 and 2, c is a foundation pit surface, a lattice column d in the construction of a foundation pit is a reinforced concrete filling pile b (hereinafter referred to as pile or pile foundation), the pile diameter is 1.2 meters, four sounding pipes a are uniformly buried, the top surface of the pile foundation b is provided with a lattice column d (serving as an obstacle) formed by welding equilateral angle steel and a lacing plate, and the section size is 500mm multiplied by 500mm. The bottom end of the lattice column d is embedded in the pile foundation b, and because of the blocking of the lattice column d, when the pipe distance of the adjacent sounding pipes a is measured, a measuring ruler is required to pass through the gap of the lattice column d for measurement or is required to be arranged on the outer side of the lattice column d for estimating the pipe distance through naked eye observation.

And the sound wave transmission method is used for detecting the pile body integrity of the concrete filling pile, and the clear distance between the outer walls of each sound measurement pipe is required to be measured at the pile top, so that the accurate wave propagation speed and the pile body integrity category are obtained.

Disclosure of Invention

The utility model provides a device capable of measuring the distance between sound measuring pipes of a large-diameter concrete pile across an obstacle, and capable of rapidly and accurately measuring the clear distance between the outer walls of each sound measuring pipe in a pile foundation, and provides a guarantee for obtaining a test result scientifically and accurately by utilizing the proportional characteristic of corresponding sides of similar triangles.

The utility model is realized by the following technical scheme: a device capable of measuring the distance of a large-diameter concrete pile sounding pipe across an obstacle comprises a left telescopic arm, a right telescopic arm and a level bar which have identical structures; the left telescopic arm and the right telescopic arm are formed by sequentially nested multi-stage joint rods, and the top ends of the left outermost joint rod of the left telescopic arm and the right outermost joint rod of the right telescopic arm are rotationally connected through a hinge; the tail ends of the innermost section bars of the left telescopic arm and the right telescopic arm are respectively provided with a magnet; the tail end of the left outermost section rod is rotationally connected with one end of a level bar, the tail end of the right outermost section rod is provided with a guide limiting block, and the other end of the level bar movably passes through a guide hole of the guide limiting block so that the left outermost section rod, the right outermost section rod and the level bar form an isosceles triangle; the level bar is provided with a level bubble, and the level bar is provided with scales.

In actual operation, the left outermost section bar of the left telescopic arm and the right outermost section bar of the right telescopic arm are rotated and separated through loosening the hinging piece arranged at the top end, the left telescopic arm and the right telescopic arm are not contacted with the barrier, the multi-stage section bars of the left telescopic arm and the right telescopic arm are respectively extended, the number of the extended section bars of the left telescopic arm and the right telescopic arm is ensured to be the same, and the magnet at the tail end of the innermost section bar is respectively fixed on the pipe walls of two sound measuring pipes to be measured; the level bar moves horizontally in the guiding limiting block, the level bubble arranged on the level bar is observed, the height of the left telescopic arm and the right telescopic arm is adjusted, when the level bubble is centered, the level bar is in a horizontal state, namely, the left telescopic arm and the right telescopic arm connected with the level bar also reach the horizontal state, the reading of the level bar at the position of the guiding limiting block is read, namely, the bottom edge length of the isosceles triangle, the joint at the top ends of the left outermost section bar and the right outermost section bar is the common vertex angle of the two triangles, the lengths of the left telescopic arm and the right telescopic arm are equal, the two isosceles triangles with the same vertex angle can be obtained to be similar triangles, then according to the principle that the corresponding edges of the similar triangles are in proportion, the total waist edge length of the left outermost section bar/the total waist edge length of the left telescopic arm after the left telescopic arm extends out of the section bar = the distance between the bottom edge length of the two sound measuring tubes, the waist edge length of the left telescopic arm after the left telescopic arm extends out of the section bar = the distance between two sound measuring tubes, the waist edge length of the left telescopic arm and the right outermost section bar is known, and the length of the left telescopic arm and the right telescopic arm after the left telescopic arm extends out of the waist edge length of the section bar, and the left telescopic arm extends out of the left telescopic arm can be respectively, and the distance between two outer side rods can be obtained. After the work is accomplished, the multistage festival pole of flexible arm about will shrink in proper order, and accessible rotary hinge makes two flexible arms parallel after the flexible arm shrink finishes, and the level bar is also followed rotatoryly afterwards, and the level bar is parallel with flexible arm, and this device of furthest shrink conveniently carries.

Specifically, the number of the multi-stage section bars is set to five stages, and the length and the number of the section bars can be automatically adjusted according to actual conditions.

Further preferably, a hook is arranged at the end part of the other end of the level bar. The tail end of the level bar can be fixed with the telescopic arm through the hook, so that the level bar can be prevented from falling off.

Further preferably, in the left telescopic arm and the right telescopic arm, the extending lengths of the middle section bar and the innermost section bar of each stage are equal to the waist side length of the isosceles triangle, so that the calculation difficulty is further reduced, and after reading the reading of the level ruler, the reading is directly multiplied by five (five is the number of stages of the actually arranged section bars) according to the total waist side length=1:5 (namely the length of each stage of section bar) of the left outermost section bar after the left telescopic arm extends out of the section bar, so that the distance between the two magnets at the tail end of the innermost section bar, namely the distance between the outer walls of two objects, can be obtained.

Further preferably, in the left telescopic arm and the right telescopic arm, a magnet is arranged at the tail end of each stage of middle section rod. During actual operation, the number of the joints of the actual extending joint rod can be determined according to the requirement, and the magnet at the tail end of the corresponding joint rod is fixed on the outer wall of the sounding pipe, so that all the joint rods do not need to extend, and the actual requirement is met.

Those skilled in the art can know that there are many kinds of flexible realization modes of flexible arm, for example set up the slide that runs through end to end at the outer wall of the next section pole, and the next section pole stretches into in the preceding section pole, and the preceding section pole inner wall sets up the slider with slide looks adaptation, and the slider can slide on the slide, so the next section pole can slide at the inner chamber of the preceding section pole to set up solid fixed ring in two section pole junctions, rotate on the solid fixed ring and set up the driving lever, compress tightly the briquetting through the driving lever and compress tightly the section pole outer wall and make flexible arm no longer flexible. The telescopic arm can be telescopic in other ways according to the specific situation.

The device for measuring the distance of the large-diameter concrete pile acoustic pipe across the obstacle has the following advantages:

1. the structure is simple, the operation is convenient, the shrinkage and folding can be realized, and the carrying is convenient;

2. the design is reasonable, simple and practical, and the user can see the product;

3. the direct distance measurement between two objects with obstacles is realized;

4. the application range is wide, and the length and the number of the section bars can be adjusted according to actual conditions;

5. the requirement on operators is low, the level bubble centering of the level ruler is ensured during operation, the measurement is finished, the calculation is simple, and when the extending lengths of the section bars of each stage are equal according to the principle that the corresponding sides of similar triangles are proportional, the distance can be obtained by multiplying the reading of the level ruler by the extending number of the section bars;

6. the precision of the graduated scale can be set to be a scale conforming to the test standard, so that the scientific accuracy of the subsequent test data is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a cast-in-place reinforced concrete pile and an obstacle;

FIG. 2 is a top view of a field construction reinforced concrete bored concrete pile and an obstacle;

FIG. 3 is a schematic diagram of the overall structure of the present utility model;

fig. 4 is a schematic view of a partial structure of the present utility model.

In the figure: a-a sound tube; b-reinforced concrete filling piles; c-basal pit surfaces; d-lattice columns; 1-left outermost pitch lever; 2-right outermost pitch lever; 3-level bar; 4-hinges; 5-innermost pitch bars; 6-magnet; 7-leveling bubble; 8-guiding limited blocks; 9, hooking; 10-middle section bar.

Detailed Description

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "inner", "outer", "left", "right", etc., are directions or positional relationships based on those shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model, and furthermore, unless otherwise explicitly specified and defined, terms "mounted", "connected", "arranged" should be construed broadly, and may be either fixedly connected, or detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 3 and 4, the utility model provides an embodiment of a device capable of measuring the distance of a large-diameter concrete pile acoustic pipe across an obstacle, comprising a left telescopic arm, a right telescopic arm and a level bar 3 which are identical in structure; the left telescopic arm and the right telescopic arm are respectively formed by sequentially nested five-stage joint rods, and the top end parts of a left outermost joint rod 1 of the left telescopic arm and a right outermost joint rod 2 of the right telescopic arm are rotationally connected through a hinge piece 4; the middle section bar 10 of the left telescopic arm and the right telescopic arm and the tail end part of the innermost section bar 5 are respectively provided with a magnet 6; the tail end of the left outermost section bar 1 is rotationally connected with one end of the horizontal ruler 3, the tail end of the right outermost section bar 2 is provided with a guide limiting block 8, and the other end of the horizontal ruler 3 movably penetrates through a guide hole of the guide limiting block 8, so that the left outermost section bar 1, the right outermost section bar 2 and the horizontal ruler 3 form an isosceles triangle; the end part of the other end of the level bar 3 is provided with a hook 9, the level bar 3 is provided with a level bubble 7, and the level bar 3 is provided with scales; and in the left telescopic arm and the right telescopic arm, the extending length of the middle section bar 10 and the innermost section bar 5 of each stage is equal to the length of the waist edge of the isosceles triangle.

When the distance measurement is needed to be carried out on the reserved sounding pipes a in the reinforced concrete bored concrete pile b, as an obstacle (particularly a lattice column d arranged at the upper part of the reinforced concrete bored concrete pile) is arranged between the two sounding pipes a, the hinge 4 arranged at the top ends of the left telescopic arm and the right telescopic arm of the utility model is loosened, so that the two telescopic arms are separated in a rotating way (particularly, the left telescopic arm and the right telescopic arm are made of aluminum alloy materials, the materials are light, and the influence on test data is small); the telescopic structure of the left telescopic arm and the right telescopic arm is that springs are arranged on the side walls of the top ends of the middle section rod 10 and the innermost section rod 5, clamping bosses are connected to the other ends of the springs, clamping holes matched with the clamping bosses are formed in the tail ends of the left outermost section rod 1, the right outermost section rod 2 and the middle section rod 10, and clamping holes matched with the clamping bosses are formed in the top ends of the middle section rod 10 and the innermost section rod 5. Then the needed number of the section bars are extended and sequentially extended, the same number of the section bars extended by the left and right telescopic arms is ensured, and the two magnets 6 at the tail parts of the corresponding middle section bars 10 or the innermost section bars 5 are respectively fixed on the outer walls of the two sounding pipes to be measured; observing the level bubble 7 arranged on the level bar 3 and adjusting the height of the level bar of the telescopic arm, when the level bubble 7 is centered, indicating that the level bar 3 is in a horizontal state, namely, the left telescopic arm and the right telescopic arm connected with the level bar 3 are also in a horizontal state, specifically, the level bar 3 is made of stainless steel, the measuring range of the level bar 3 is 40cm, the precision is 1mm, and the precision meets the test requirement; the maximum distance that the device can measure is 40cm 5 knots=2m (the scale of the level 3 can be adjusted correspondingly according to the need); at this time, the reading of the distance between the guide limiting blocks 8 on the horizontal ruler 3 from the left telescopic arm 1 to the right telescopic arm 2 is read, the distance between the outer walls of the two sounding pipes can be obtained by multiplying the reading by the number of the actually-stretched joint rods, and the propagation speed of actual waves can be obtained correspondingly according to the principle that the integrity of the pile body is detected by using a sound wave transmission method, so that the integrity of the pile body is evaluated, and the follow-up work is facilitated.

The utility model can directly measure the obstacle when the obstacle exists between two objects, solves the problems existing in the prior art, and has reasonable design and simple structure; the whole device can be telescopic and rotatable, so that the device is portable and small after being contracted, and is convenient to carry; the application range is wide, and the length of the telescopic arm can be increased according to actual conditions; the working efficiency is improved, data can be obtained quickly and accurately, guarantees are provided for subsequent tests, and the next working is convenient to carry out smoothly.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (5)

1. Device that can stride across barrier measurement major diameter concrete pile sound survey pipe distance, its characterized in that: comprises a left telescopic arm, a right telescopic arm and a horizontal ruler (3) which have the same structure; the left telescopic arm and the right telescopic arm are formed by sequentially nested multi-stage joint rods, and the top ends of the left outermost joint rod (1) of the left telescopic arm and the right outermost joint rod (2) of the right telescopic arm are rotationally connected through a hinge (4); the tail ends of the innermost section bars (5) of the left telescopic arm and the right telescopic arm are respectively provided with a magnet (6); the tail end of the left outermost section bar (1) is rotationally connected with one end of the horizontal ruler (3), the tail end of the right outermost section bar (2) is provided with a guide limiting block (8), and the other end of the horizontal ruler (3) movably penetrates through a guide hole of the guide limiting block (8) so that the left outermost section bar (1), the right outermost section bar (2) and the horizontal ruler (3) form an isosceles triangle; the level bar (3) is provided with a level bubble (7), and the level bar (3) is provided with scales.

2. The apparatus for measuring the distance of a large-diameter concrete pile acoustic pipe across an obstacle according to claim 1, wherein: the number of the multi-stage pitch bars is set to five stages.

3. The apparatus for measuring the distance of a large-diameter concrete pile acoustic pipe across an obstacle according to claim 1, wherein: the end part of the other end of the horizontal ruler (3) is provided with a hook (9).

4. The apparatus for measuring the distance of a large-diameter concrete pile acoustic pipe across an obstacle according to claim 1, wherein: in the left telescopic arm and the right telescopic arm, the extending length of the middle section rod (10) and the innermost section rod (5) of each stage is equal to the length of the waist edge of the isosceles triangle.

5. The apparatus for measuring the distance of a large diameter concrete pile acoustic pipe across an obstacle according to any one of claims 1 to 4, wherein: in the left telescopic arm and the right telescopic arm, the tail end of each stage of middle section rod (10) is provided with a magnet (6).