CN219886966U - Detection device for detecting pile body integrity by low strain method - Google Patents

Abstract

The utility model discloses a detection device for detecting pile body integrity by a low strain method, and belongs to the field of detection devices. The utility model provides a low strain method detects detection device of pile shaft integrality, includes the round bar, still includes: the connecting plate is symmetrically and fixedly connected to the lower end of the round rod; the closing covers are symmetrically arranged on the connecting plate and are connected with the torsion springs of the connecting plate; the detecting head is arranged in the round rod; the detector is fixed on the round rod, and the detecting head is electrically connected with the detector; the driving assembly is arranged in the round rod and is used for driving the two closing covers to be opened; the utility model effectively prevents the mud from entering the closing cover to block the detecting head, and effectively solves the problem that the pile body is buried under the mud and is not beneficial to detection.

Description

Detection device for detecting pile body integrity by low strain method

Technical Field

The utility model relates to the technical field of detection devices, in particular to a detection device for detecting pile body integrity by a low strain method.

Background

The pile foundation is one of the main foundation types adopted by engineering buildings such as high-rise buildings, factory buildings, bridges, port yards and the like, belongs to the concealed engineering range, and the quality of the pile foundation are directly related to the security risk of the whole building. Because the pile foundation is buried underground hidden engineering, the quality of the pile foundation is not easy to control, and various quality problems affecting the safe use are easy to occur, so that foundation pile detection is used as an important link for checking and accepting the hidden engineering after construction and before use, and plays an important role in ensuring the safety and stability of the whole engineering building.

In the prior art, the publication number is: CN203551516U, publication date: 2014-04-16, provides a detection device for detecting pile body integrity by a low strain method, which comprises a signal acquisition instrument, a first signal receiving device, a second signal receiving device, a measuring tube, a foundation pile to be detected and a force hammer; the measuring pipe is embedded in the foundation pile to be measured, and the axis of the measuring pipe is parallel to the axis of the foundation pile to be measured; the first signal receiving device is stuck to the pile top of the foundation pile to be detected and is connected with the signal acquisition instrument through a signal wire, and stress wave signals received by the first signal receiving device are transmitted to the signal acquisition instrument; the second signal receiving device is arranged in the measuring tube, is connected with the signal acquisition instrument through a signal wire, transmits stress wave signals received by the second signal receiving device to the signal acquisition instrument, and can move back and forth in the axis direction of the measuring tube according to the length of the signal wire arranged in the measuring tube; the utility model has no strict requirement on the length of the measuring tube, and can replace the acoustic wave transmission method detection device for detecting the blockage of the measuring tube to continuously detect the integrity of the pile body.

The pile body is measured through the embedded measuring pipe in the above patent, the operation is more complex, wherein the above patent proposes a method for measuring the pile body by adopting a reflection wave method, the reflection method is simpler than the operation of the above embodiment, the pile body can be detected only by connecting a detector at the upper end of the pile body when the pile body is measured, the pile body is difficult to detect when the pile body is buried by silt, and the time and the labor are wasted and the efficiency is low if the silt on the pile body is dug out for detection.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a detection device for detecting the integrity of a pile body by a low strain method, which can overcome the problems or at least partially solve the problems.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a low strain method detects detection device of pile shaft integrality, includes the round bar, still includes: the connecting plate is symmetrically and fixedly connected to the lower end of the round rod; the closing covers are symmetrically arranged on the connecting plate and are connected with the torsion springs of the connecting plate; the detecting head is arranged in the round rod; the detector is fixed on the round rod, and the detecting head is electrically connected with the detector; the driving assembly is arranged in the round rod and is used for driving the two closing covers to be opened.

Preferably, the drive assembly includes the telescopic link of fixing in the round bar, the telescopic link's telescopic link fixedly connected with handle, the notch has been seted up on the round bar, the handle sets up in the notch, the telescopic link's telescopic link fixedly connected with boss, boss and two closing cap assorted.

In order to facilitate extrusion of the closure, preferably, a rounded corner is provided at an end of the boss adjacent to the closure.

In order to facilitate the detection of the pile body by the detection head, the detection head is preferably fixedly arranged at the telescopic end of the telescopic rod.

In order to prevent the mud from entering the closing cover to block the detection head, preferably, the telescopic end of the telescopic rod is slidably provided with a circular tube, a spring is arranged between the circular tube and the telescopic rod, and the detection head is arranged in the circular tube.

In order to facilitate the pulling out of the device after the detection is completed, preferably, an inclined table is fixedly connected to the connecting plate.

Compared with the prior art, the utility model provides a detection device for detecting the integrity of a pile body by a low strain method, which has the following beneficial effects:

1. the detection device for detecting the integrity of the pile body by the low strain method finds the center position of the pile body to be detected through the specific position of a drawing, marks the center position, then faces the closed cover to the marked position, and places the round rod in a vertical state, applies downward force to the round rod, enables the closed cover at the lower end to be inserted into sludge, stops pressing the round rod after the closed cover touches the upper end of the pile body, then pushes the handle downwards, at the moment, the handle drives the telescopic rod to move downwards, the telescopic rod drives the boss to move downwards, the boss at the lower end extrudes the closed cover, the closed cover is opened towards the two ends, the sludge is pushed away, and meanwhile, a round pipe in the closed cover is firstly contacted with the pile body, so that the sludge is effectively prevented from entering the closed cover to block the detection head.

2. The detection device for detecting the integrity of the pile body by the low strain method is extruded into the telescopic rod through the circular tube, and finally the detection head in the circular tube contacts with the pile body and detects the pile body, so that the problem that the pile body is buried under silt and is not beneficial to detection is effectively solved.

3. The device has the advantages that the non-related parts are the same as or can be realized by adopting the prior art, the mud is effectively prevented from entering the closing cover to block the detection head, and the problem that the pile body is buried under the mud and is not beneficial to detection is effectively solved.

Drawings

FIG. 1 is a schematic diagram of a device for detecting pile body integrity by a low strain method according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a device for detecting pile body integrity by a low strain method according to the present utility model;

fig. 3 is an enlarged schematic diagram of a detection device for detecting pile body integrity by a low strain method according to the present utility model at a position a in fig. 2.

In the figure, 1, a round rod; 101. closing the cover; 102. a ramp; 103. a connecting plate; 104. a notch; 2. a detector; 201. a telescopic rod; 202. a handle; 203. a probe; 204. a round tube; 205. a boss; 206. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples:

referring to fig. 1, 2 and 3, a detection apparatus for detecting pile body integrity by a low strain method includes a round bar 1, and further includes: the connecting plate 103 is symmetrically and fixedly connected to the lower end of the round rod 1; the closing cover 101 is symmetrically arranged on the connecting plate 103, and the closing cover 101 is connected with the connecting plate 103 through torsion springs; a probe 203 disposed in the round bar 1; the detector 2 is fixed on the round bar 1, and the detecting head 203 is electrically connected with the detector 2; and a driving assembly is arranged in the round rod 1 and is used for driving the two closing covers 101 to be opened.

The drive assembly includes the telescopic link 201 of fixing in round bar 1, and telescopic link 201's telescopic link fixedly connected with handle 202 has seted up notch 104 on the round bar 1, and handle 202 sets up in notch 104, and telescopic link 201's telescopic link fixedly connected with boss 205, boss 205 and two closing cap 101 assorted.

The end of the boss 205 near the lid 101 is provided with a rounded corner.

The detecting head 203 is fixedly arranged at the telescopic end of the telescopic rod 201, and the telescopic rod 201 drives the detecting head 203 to detect.

The telescopic end of the telescopic rod 201 is slidably provided with a circular tube 204, a spring 206 is arranged between the circular tube 204 and the telescopic rod 201, the detecting head 203 is arranged in the circular tube 204, and the circular tube 204 extends to the closing cover 101 as far as possible but does not contact with the closing cover.

The connecting plate 103 is fixedly connected with an inclined table 102, and the side surface of the inclined table 102 is obliquely arranged.

When the pile body is detected, the center position of the pile body to be detected is found according to the specific position of a drawing, the pile body to be detected is marked, then the closing cover 101 is opposite to the marked position, the round rod 1 is positioned in a vertical state, downward force is applied to the round rod 1, the closing cover 101 at the lower end is inserted into sludge, after the closing cover 101 touches the upper end of the pile body, the pressing of the round rod 1 is stopped, then the handle 202 is pushed downwards, at the moment, the handle 202 drives the telescopic rod 201 to move downwards, the telescopic rod 201 drives the boss 205 to move downwards, the boss 205 at the lower end presses the closing cover 101, the closing cover 101 is opened towards two ends and pushes away sludge, meanwhile, the round tube 204 in the closing cover 101 is contacted with the pile body first, so that the sludge is effectively prevented from entering the closing cover 101 to block the detecting head 203, then the round tube 204 is extruded into the telescopic rod 201, and finally the detecting head 203 in the round tube 204 is contacted with the pile body and detects the pile body, so that the problem that the pile body is not beneficial to detection under the sludge is effectively solved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. A detection device for detecting pile body integrity by a low strain method comprises: round bar (1), its characterized in that still includes:

the connecting plates (103) are symmetrically and fixedly connected to the lower ends of the round rods (1);

the closing covers (101) are symmetrically arranged on the connecting plate (103), and the closing covers (101) are connected with torsion springs of the connecting plate (103);

a probe (203) disposed within the round bar (1);

the detector (2) is fixed on the round rod (1), and the detecting head (203) is electrically connected with the detector (2);

the driving assembly is arranged in the round rod (1) and is used for driving the two closing covers (101) to be opened.

2. The device for detecting the integrity of a pile body by using a low strain method according to claim 1, wherein the driving assembly comprises a telescopic rod (201) fixed in a round rod (1), the telescopic end of the telescopic rod (201) is fixedly connected with a handle (202), the round rod (1) is provided with a notch (104), the handle (202) is arranged in the notch (104), the telescopic end of the telescopic rod (201) is fixedly connected with a boss (205), and the boss (205) is matched with two closing covers (101).

3. A device for detecting the integrity of a pile body by a low strain method according to claim 2, characterized in that the end of the boss (205) close to the closing cover (101) is provided with a rounded corner.

4. A device for detecting the integrity of a pile body by a low strain method according to claim 2, characterized in that the detecting head (203) is fixedly arranged at the telescopic end of the telescopic rod (201).

5. The device for detecting the integrity of a pile body by using a low strain method according to claim 2, wherein a circular tube (204) is slidably arranged at the telescopic end of the telescopic rod (201), a spring (206) is arranged between the circular tube (204) and the telescopic rod (201), and the probe (203) is arranged in the circular tube (204).

6. The device for detecting the integrity of a pile body by a low strain method according to claim 1, wherein the connecting plate (103) is fixedly connected with a ramp (102).