CN206874276U - A kind of inclination angle type opening size test device - Google Patents

Abstract

The utility model discloses a kind of inclination angle type opening size test device.Device includes center-pole, extends radially out beam, stretches out beam adjustable section, bolt, the adaptive bar in aperture, pulley, torsionspring；It is symmetrically fixed with some to extending radially out beam on described center-pole, each pair extends radially out beam and is distributed in the both sides of center-pole and is located along the same line, and roll sensor is carried inside center-pole；Every extends radially out beam and one end of center-pole is provided with stretching beam adjustable section, and the adaptive bar in aperture is articulated with stretching beam adjustable section and hinge point is provided with torsionspring, applies for device to hole diameter adaptive bar and extends out power；Incline sensor and end of survey is carried on the adaptive bar in aperture pulley is set.The device structure is simple, is easy to carry out waterproof sealing, can realize the durable use of equipment, have good equipment dependability.Equipment operation is easy, and own vol is little, and extends radially out beam and can adjust, and has suitable engineering adaptability and promotional value.

Description

A tilt-type aperture testing device

technical field

The utility model belongs to the field of construction methods, and in particular relates to an inclination-type aperture testing device, which can realize the detection of the aperture size along the depth direction of rotary excavation, drilling and impact hole-forming piles, and provides support for the analysis of hole-forming quality.

Background technique

With the continuous development of pile foundation construction technology, more and more attention has been paid to the quality control of pile foundation piles. At present, the bored piles are widely used in actual engineering, and the quality control of the pile body mainly includes the quality control of the hole and the quality control of the pile. Among them, the method of pile body quality control and the quality inspection technology after pile formation have made great progress, and have obtained quite a lot of engineering practice tests, while the control and detection methods of hole quality are relatively insignificant. Complete.

From the perspective of pile-forming technology, the quality of pile foundation holes formed by construction techniques such as rotary excavation, drilling, and impact will greatly affect the final pile-forming quality. In actual engineering, the common indicators of hole formation detection are hole diameter, hole depth, verticality and sediment thickness. Among them, for the test of the hole diameter, the current main test method is to make a steel cage on the spot to test the hole quality by using its passability.

Although the above method is easy to operate and has low equipment requirements, it has been widely used in actual engineering, but due to its low precision and insufficient information feedback on possible problems, it is not necessary for some holes and piles to meet the quality requirements. A higher hole formation to be tested shows a lack of reliability.

Utility model content

Considering that the current hole diameter testing device is not perfect, the purpose of this utility model is to provide a hole forming hole diameter testing device, which can adapt to various hole forming types, such as rotary drilling, drilling and impact forming, while ensuring sufficient test accuracy. At the same time, it can have good equipment durability and reliability, and simplify operation, and has good promotion value and engineering application prospect.

The concrete technical scheme adopted by the utility model to solve technical problems is:

An inclination-type aperture testing device includes a central rod, a radially extending beam, an adjustable section of the extending beam, a positioning bolt, an aperture adaptive rod, a pulley, and a torsion spring; several pairs of radially extending beams are symmetrically fixed on the central rod. Out of the beam, each pair of radially extending beams is distributed on both sides of the central rod and on the same straight line, and the center rod is equipped with a roll sensor; each radially extending beam is provided with an adjustable extending beam at the end away from the central rod section, the aperture adaptive rod is hinged on the adjustable section of the protruding beam, and the hinged part is provided with a torsion spring, which is used to apply external expansion force to the aperture adaptive rod; the aperture adaptive rod is equipped with an inclination sensor and a pulley is set at the end.

Preferably, a diagonal brace is provided between the radially extending beam and the central rod.

As a preference, the adjustable section of the extended beam and the radially extended beam are provided with a plurality of positioning holes along the extending direction, and the distance between the end of the adjustable section of the extended beam and the central rod is adjusted through the cooperation of the positioning bolts and the positioning holes. .

Preferably, the center rod is hollow inside, and the lower part is a tip.

Preferably, the center of gravity of the entire testing device is located on the central axis of the central rod.

The beneficial effects of the utility model are as follows:

1. The equipment has a simple structure and is easy to be waterproof and sealed, which can realize the durable use of the equipment and enhance the reliability of the equipment;

2. The equipment is easy to operate, its own volume is small, and the radial extension beam can be adjusted, which has considerable engineering adaptability and promotion value;

3. It can be combined with testing equipment such as hole depth, hole inclination, and sediment, and has the development potential of comprehensive hole formation testing.

Description of drawings

Figure 1 is a schematic cross-sectional view of an inclination-type aperture testing device.

Figure 2 is a top view of the tilt-type aperture testing device.

In the figure: central rod 1, radially protruding beam 2, protruding beam adjustable section 3, positioning bolt 4, diagonal brace 5, aperture adaptive rod 6, pulley 7, torsion spring 8.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

As shown in Figures 1 and 2, it is an inclination-type aperture testing device, which is used for detecting the aperture size along the depth direction of rotary excavation, drilling and impact hole piles. The test device includes a central rod 1, a radially extending beam 2, an adjustable section 3 of the extending beam, a positioning bolt 4, an aperture adaptive rod 6, a pulley 7, and a torsion spring 8. The central pole 1 is used as the suspension structure of the whole device, and its top can be connected with a suspension rope. The interior is hollow as the installation position of electrical components such as roll sensors and circuits. The waterproof function can be realized after the cavity is sealed. The bottom of the central rod 1 is set as a tip, and when the device sinks to the bottom of the hole, the bottom sediment can be inserted to realize the measurement of the bottom hole diameter.

Several pairs of radially protruding beams 2 are symmetrically fixed on the central rod 1 circumferentially. Two pairs are shown in Fig. 2, but more can be provided according to actual conditions. Two beam bodies in each pair of radially protruding beams 2 are installed on both sides of the central rod 1 respectively, and the two beams are kept on the same straight line. One end of each radially extending beam 2 away from the central rod 1 is provided with an adjustable section 3 of the extending beam, and the adjustable section 3 of the extending beam and the beam body of the radially extending beam 2 are provided with multiple positioning holes. The positions of the two can be adjusted, and the distance between the end of the adjustable section 3 of the protruding beam and the central rod 1 can be adjusted through the cooperation of the positioning bolt 4 and the positioning hole. The aperture adaptive rod 6 is a straight rod hinged on the end of the adjustable section 3 of the protruding beam, and a torsion spring 8 is arranged at the joint between the two. The aperture adaptive rod 6 is equipped with an inclination sensor and a pulley 7 is arranged at the end. The pre-tightening force on the torsion spring 8 makes the aperture self-adaptive rod 6 apply an outward expansion force when it rotates in the vertical direction, so that the whole device keeps the pulley type in the process of sliding up and down in the hole and is close to the hole wall. Thus, according to the geometric length between the rods, combined with the angle of the aperture adaptive rod 6 and the central rod 1 measured by the inclinometer, the diameter of the hole can be calculated.

In order to improve the structural strength of the radially extending beam 2 , a diagonal brace 5 can be arranged between it and the central rod 1 . The center of gravity of the whole testing device is located on the central axis of the center pole 1, and the sling is installed on the central axis to keep the device in the process of moving up and down, and the radially extending beam 2 and the adjustable section 3 of the extending beam remain horizontal as possible.

The method for carrying out hole-forming aperture test based on above-mentioned device, comprises the steps:

Step 1: Adjust the adjustable section 3 of the protruding beam to keep a certain distance between the end and the wall of the hole, and fix it with the positioning bolt 4, so that the pulley 7 always rests on the wall of the hole during the sliding process in the hole .

Step 2: Lower the hole diameter testing device vertically to the bottom of the hole through the sling, at this time, the bottom of the central rod 1 is generally inserted into the scum layer at the bottom of the hole.

Step 3: When reaching the bottom of the hole, lift the aperture testing device through the sling and try to keep the radially protruding beams 2 of the aperture testing device in a horizontal state during the lifting process; during the lifting process, record the different depths The inclination values of the position aperture adaptive rod 6 and the center rod 1 are obtained through geometric relationship conversion to obtain aperture data. In this process, the data measured by the tilt sensor can be stored corresponding to the depth of the device, and then converted later. The data can also be transmitted to the ground in real time through wireless or wired communication, and recorded and displayed in real time by the data processing device.

Step 4: After the test is completed, lift the test device into the hole, and clean and maintain it for the next use.

The above-mentioned embodiment is only a preferred solution of the present utility model, but it is not intended to limit the present utility model. Various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present utility model.

Claims (5)

1. an inclination type aperture testing device, is characterized in that, comprises central rod (1), radially protruding beam (2), protruding beam adjustable section (3), aperture self-adapting rod (6), pulley ( 7), torsion spring (8); said central rod (1) is symmetrically fixed with several pairs of radially protruding beams (2), and each pair of radially protruding beams (2) is distributed on the center rod (1) On both sides and on the same straight line, the center rod (1) is equipped with a roll sensor inside; the end of each radially extending beam (2) away from the center rod (1) is provided with an adjustable section (3) of the extending beam, and the aperture The self-adaptive rod (6) is hinged on the adjustable section (3) of the protruding beam, and a torsion spring (8) is arranged at the hinged part, which is used to apply an external expansion force to the aperture self-adaptive rod (6); the aperture self-adaptive rod (6) ) is equipped with an inclination sensor and a pulley (7) is set at the end. 2. The inclined-angle aperture testing device according to claim 1, characterized in that, a diagonal brace (5) is arranged between the radially protruding beam (2) and the central rod (1). 3. The inclination-type aperture testing device according to claim 1, characterized in that, the adjustable section (3) of the extended beam (3) and the radially extended beam (2) are provided with a plurality of positioning points along the extending direction. hole, adjust the distance between the end of the adjustable section (3) of the protruding beam and the central rod (1) through the cooperation of the positioning bolt (4) and the positioning hole. 4. The inclination type aperture testing device according to claim 1, characterized in that, the center rod (1) is hollow inside, and the lower part is a pointed end. 5. The inclined-angle aperture testing device according to claim 1, characterized in that, the center of gravity of the entire testing device is located on the central axis of the central rod (1).