Underwater concrete detection device

Abstract

The utility model discloses an underwater concrete probing device which comprises a main rod body, a hand stopper is arranged at the top end of the main rod body, a stone fishing hopper is arranged at the bottom end of the main rod body, the stone fishing hopper is of a hollow triangular pyramid or cone structure with the tip facing downwards, and the stone fishing hopper and the main rod body are fixedly connected through a plurality of evenly-distributed connecting rods. And a graduated scale is arranged on the main rod body. According to the design of the conical tip, laitance and sediments can penetrate through the conical tip to reach the position of a normal concrete entity containing broken stones; due to the design of the hopper body at the end, broken stones in concrete can be fished, and the insertion depth is verified; and then the actual depth of the concrete can be fully detected through the scales of the rod body, so that the control precision is greatly improved, the measurement deviation is reduced, and the construction quality of underwater concrete such as a pile body is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of underwater concrete construction, in particular to an underwater concrete probing device. Background Art

[0002] There is usually a design elevation requirement for the top surface of underwater concrete such as cast-in-place piles and ground-anchored walls. If it is lower than the design elevation, it is considered an unqualified product; if it is higher than the design elevation, it will cause a waste of concrete materials and a huge waste of manpower, machines, and energy used in the concrete pouring process and in the next process to chisel out the concrete that exceeds the design elevation.

[0003] like Figure 2 As shown in the figure, during the long-term rise of underwater concrete, concrete slurry and mud residue sediments mixed in the slurry will gradually accumulate on the top layer. When the concrete reaches the design elevation, thick slurry and sediments have accumulated. The measuring rope or electronic detection equipment currently used can only detect the surface of the top of the concrete, but cannot really detect the concrete entity, resulting in the measured value being higher than the concrete elevation; and for the use of a probe rod with a high hardness and sharp tip, it is also difficult to accurately judge whether it has reached the concrete entity by hand, which can easily cause the probe rod to be inserted too much into the concrete entity, resulting in the measured value being lower than the concrete elevation.

[0004] In order to solve the problem that the underwater concrete elevation cannot be accurately measured and controlled, we proposed an underwater concrete detection device. Utility Model Content

[0005] The utility model aims to provide an underwater concrete detection device with high control accuracy and small measurement deviation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an underwater concrete detection device includes a main rod body, a hand stop is arranged at the top end of the main rod body, a stone scoop is arranged at the bottom end of the main rod body, the stone scoop is a hollow triangular pyramid or cone structure with the tip facing downward, and the stone scoop is fixedly connected to the main rod body by a plurality of evenly distributed connecting rods; a scale is formed on the main rod body.

[0007] Preferably, a water leakage hole is provided at the bottom of the stone scoop.

[0008] Preferably, the diameter of the water leakage hole is 0.5-2 cm.

[0009] Preferably, when the stone scoop adopts a hollow triangular pyramid structure, the apex angle of the triangular pyramid is 15-30°.

[0010] Preferably, when the stone scoop adopts a hollow cone structure, the cone angle is 15-30°.

[0011] Preferably, the main rod body is made of a round steel tube or a square steel tube, and the length of the main rod body is 1.5-5m.

[0012] Preferably, the length calculation formula of the main rod body is: ground elevation-pile body design elevation+(0.15-2m).

[0013] Preferably, the thickness of the hand guard is 3-8 mm, and the outer diameter of the hand guard is 5-20 mm larger than the outer diameter of the main rod.

[0014] Preferably, a marking band is also provided on the main rod body.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the conical tip design of the utility model can penetrate the slurry and sediment to reach the normal concrete entity position containing gravel; the bucket design at the end can salvage the gravel in the concrete and verify the insertion depth; then the actual depth of the concrete can be fully detected through the scale of the rod body, which greatly improves the control accuracy, reduces the measurement deviation, and ensures the construction quality of underwater concrete such as piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of underwater concrete;

[0018] In the figure: 1. hand stop; 2. main rod body; 3. scale; 4. stone scoop; 5. connecting rod; 6. marking hoop; 11. concrete slurry; 12. concrete body. DETAILED DESCRIPTION

[0019] A preferred embodiment of the present invention will be described below in conjunction with the accompanying drawings to clearly and completely describe the technical solution in a preferred embodiment of the present invention.

[0020] See also Figure 1 , the utility model includes:

[0021] The main rod body 2 is made of round steel pipe or square steel pipe, and the length of the main rod body 2 is 1.5-5m. In actual application, the length calculation formula of the main rod body 2 is: ground elevation-pile design elevation+(0.15-2m).

[0022] The hand stopper 1 is arranged at the top end of the main rod body 2 and is made of a steel plate with a thickness of 3-8 mm. Its outer diameter is 5-20 mm larger than the outer diameter of the main rod body 2 and is welded to the main rod body 2 to prevent the hand from slipping out during use.

[0023] The stone scoop 4 is arranged at the bottom end of the main rod body 2. The stone scoop 4 is a hollow triangular pyramid or cone structure with the tip facing downward. The stone scoop 4 is fixedly connected to the main rod body 2 by a plurality of evenly distributed connecting rods 5.

[0024] In this embodiment, a scale 3 is formed on the main rod body 2, the scale is in mm, and "0" is counted from the top of the stone scoop.

[0025] In this embodiment, a water leakage hole is provided at the bottom of the stone scoop 4, and the hole diameter of the water leakage hole is 0.5-2 cm. During use, it is convenient to filter out water and leave gravel, and it is convenient to clean after use.

[0026] In this embodiment, a marking band is also provided on the main rod body 2 for clearly marking the designed elevation height.

[0027] When the stone scoop 4 adopts a hollow triangular pyramid structure, the triangular pyramid vertex angle is 15-30°; when the stone scoop 4 adopts a hollow cone structure, the cone angle is 15-30°. If the tip angle of the stone scoop 4 is too large, it will cause excessive resistance, making it difficult for the detection device to touch the underwater concrete solid layer; if the tip angle is too small, the front end will be too sharp and penetrate the concrete solid layer, resulting in a high test value.

[0028] The utility model is provided with a hollow triangular pyramid or cone structured stone scoop 4 with a downwardly pointed tip, so that it has a certain force to penetrate the concrete slurry 11 and a certain forward resistance. The conical tip design can penetrate the slurry and sediment to reach the position of the concrete entity 12 containing gravel. When the stone scoop 4 reaches the surface of the concrete entity 12, due to the resistance generated by the front cone surface, the friction between the stone scoop 4 and the gravel on the surface of the concrete entity 12 will make a "rustling" sound when advancing forward. Therefore, when using the probing device, the probing rod is manually inserted downward. When obvious resistance is felt and a "rustling" vibration is transmitted from the hand, the height of the underwater concrete entity 12 is determined according to the scale, and at the same time, the rod body is lifted to check whether there is gravel inside the stone scoop 4. The hand feeling is mainly used, and the gravel in the stone scoop 4 is used as an auxiliary to verify that the front end of the rod body has reached the surface of the concrete entity.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater concrete detection device, comprising a main rod body (2), characterized in that: The top end of the main rod body (2) is provided with a hand stopper (1), the bottom end of the main rod body (2) is provided with a stone scooping bucket (4), the stone scooping bucket (4) is a hollow triangular pyramid or cone structure with the tip facing downward, and the stone scooping bucket (4) is fixedly connected to the main rod body (2) via a plurality of evenly distributed connecting rods (5); a scale (3) is formed on the main rod body (2).

2. The underwater concrete detection device according to claim 1, characterized in that: The bottom of the stone scoop (4) is provided with a water leakage hole.

3. The underwater concrete detection device according to claim 2 is characterized in that: The aperture of the water leakage hole is 0.5-2cm.

4. The underwater concrete detection device according to claim 1, characterized in that: When the stone scoop (4) adopts a hollow triangular pyramid structure, the apex angle of the triangular pyramid is 15-30°.

5. The underwater concrete detection device according to claim 1, characterized in that: When the stone scoop (4) adopts a hollow cone structure, the cone angle is 15-30°.

6. The underwater concrete detection device according to claim 1, characterized in that: The main rod body (2) is made of a round steel pipe or a square steel pipe, and the length of the main rod body (2) is 1.5-5m.

7. The underwater concrete detection device according to claim 6, characterized in that: The length calculation formula of the main rod body (2) is: ground elevation-pile body design elevation+(0.15-2m).

8. The underwater concrete detection device according to claim 1, characterized in that: The thickness of the hand stopper (1) is 3-8 mm, and the outer diameter of the hand stopper (1) is 5-20 mm greater than the outer diameter of the main rod body (2).

9. The underwater concrete detection device according to claim 1, characterized in that: The main rod body (2) is also provided with a marking band (6).

Images