Device for detecting grouting fullness of sleeve

Abstract

The utility model provides a device for detecting grouting fullness of a sleeve. The device comprises an outer protective shell, an observation window, a pull rope and a measuring ball, the outer protective shell is in a cylindrical shape; the observation windows are located on the two sides of the outer protection shell and connected with the outer protection shell. The pull rope is located in the center of the outer protective shell and penetrates through the whole outer protective shell. And the measuring ball is positioned at one end of the pull rope and is fixedly connected with the pull rope. According to the device for detecting the grouting fullness of the sleeve provided by the utility model, the device extends to the grout outlet of the grouting sleeve by utilizing the cylindrical outer protective shell, then the measuring ball is released to descend to the top of a grouting material, and at the moment, the scale numerical value of the starting line on the pull rope is read, so that the grouting fullness of the sleeve is detected. The grouting saturation can be calculated by a formula according to the measured length, so that the measurement operation is simple and convenient, the device is simple in structure, the measurement cost is effectively reduced, and the economic benefit is improved.

Description

Technical Field

[0001] The utility model relates to a device for detecting the grouting fullness of a sleeve. Background Art

[0002] An assembled monolithic concrete structure is an assembled concrete structure formed by connecting precast concrete components through reliable connection methods and integrating with cast-in-place concrete and cement-based grouting materials on site. The "reliable connection method" connects precast components into a whole to meet the design requirements of "equivalent to cast-in-place". The representative key connection parts mainly include: sleeve grouting connection, slurry anchor lap joint, bottom joint of vertical precast components, cast-in-place concrete joint surface, etc. The detection of sleeve grouting fullness is a very important detection item.

[0003] At present, there are mainly the following four methods for detecting sleeve grouting fullness: endoscope method, X-ray method, embedded wire pulling method, and embedded sensor method.

[0004] The existing detection of sleeve grouting fullness has the following problems:

[0005] 1) Both the embedded wire pulling method and the embedded sensor method need to be pre-embedded in advance, and damage to the embedded parts frequently occurs at the construction site during actual application.

[0006] 2) Both the embedded wire pulling method and the embedded sensor method can only be qualitative and cannot perform quantitative detection.

[0007] 3) The X-ray method is likely to cause harm to the human body.

[0008] 4) The equipment of both the endoscope method and the X-ray method is relatively expensive, and the efficiency is not very high during actual application.

[0009] 5) When the endoscope method is used to detect with a downward-looking probe in actual engineering, it is easily restricted by the space inside the sleeve. Content of the Utility Model

[0010] The technical problem to be solved by the utility model is: to provide a device for detecting the grouting fullness of a sleeve, aiming to perform rapid and simple detection by using the structure of the device, reducing the equipment cost for detection, being convenient to operate, and being easy to use under various working conditions.

[0011] To solve the above technical problem, the technical solution of the utility model is: a device for detecting the grouting fullness of a sleeve, including an outer protective shell, an observation window, a pull rope, and a measuring ball; the outer protective shell has a cylindrical shape; the observation window is located on both sides of the outer protective shell and is connected to the outer protective shell; the pull rope is located at the center of the outer protective shell and penetrates through the entire outer protective shell; the measuring ball is located at one end of the pull rope and is fixedly connected to the pull rope.

[0012] Further, the outer protective shell is provided as an upper shell and a lower shell, and the upper shell and the lower shell are symmetrical to each other and are distributed at the upper and lower ends of the observation window.

[0013] Further, the observation window is made of transparent glass and is located in the middle of the outer protective shell for observing the position of the pulling rope inside the outer protective shell.

[0014] Further, a starting line is provided on the pulling rope, and the position of the starting line is at the initial position of the measuring ball. When the measuring ball moves, it drives the pulling rope to move, and further drives the starting line to move inside the outer protective shell.

[0015] Further, a measuring hole is provided at the center of the observation window, and the measuring hole is matched with the pulling rope to provide a moving space for the pulling rope.

[0016] Further, scales are provided on the side surface of the outer protective shell, and the scale at the starting position of the measuring ball is zero.

[0017] Further, an extension rod extends out from the outer protective shell near the side of the measuring ball. The extension rod extends outward along one end of the outer protective shell to support the measuring ball to reach the measuring position.

[0018] Compared with the prior art, a device for detecting the grouting fullness of a grouting sleeve provided by the present utility model uses a cylindrical outer protective shell to extend the device to the slurry outlet of the grouting sleeve, and then releases the measuring ball to make it drop to the top of the grouting material. At this time, the scale value where the starting line on the pulling rope is located is read, and the grouting saturation can be calculated by using a formula through the measured length. In this way, the measurement operation is simple, the device structure is simple, the measurement cost is effectively reduced, and the economic benefit is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The front view of the present utility model is shown.

[0020] Figure 2 The left view of the present utility model is shown.

[0021] Figure 3 The working schematic diagram of the present utility model is shown.

[0022] Wherein: 1. Outer protective shell, 2. Observation window, 3. Pulling rope, 4. Measuring ball, 5. Upper shell, 6. Lower shell, 7. Starting line, 8. Measuring hole, 9. Scale, 10. Extension rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] As shown in the figure, a device for detecting the fullness of sleeve grouting includes an outer protective shell 1, an observation window 2, a pull rope 3, and a measuring ball 4; the outer protective shell 1 has a cylindrical shape; the observation window 2 is located on both sides of the outer protective shell 1 and is connected to the outer protective shell 1; the pull rope 3 is located at the center of the outer protective shell 1 and runs through the entire outer protective shell 1; the measuring ball 4 is located at one end of the pull rope 3 and is fixedly connected to the pull rope 3.

[0024] Further, the outer protective shell 1 is provided with an upper shell 5 and a lower shell 6, and the upper shell 5 and the lower shell 6 are symmetric with each other and are distributed at the upper and lower ends of the observation window 2.

[0025] Further, the observation window 2 is made of transparent glass and is located in the middle of the outer protective shell 1 for observing the position of the pull rope 3 inside the outer protective shell 1.

[0026] Further, a starting line 7 is provided on the pull rope 3, and the position of the starting line 7 is at the initial position of the measuring ball 4. When the measuring ball 4 moves, it drives the pull rope 3 to move, and then drives the starting line 7 to move inside the outer protective shell 1.

[0027] Further, a measuring hole 8 is provided at the center of the observation window 2, and the measuring hole 8 cooperates with the pull rope 3 to provide a moving space for the pull rope 3.

[0028] Further, a scale 9 is provided on the side surface of the outer protective shell 1, and the scale 9 is zero at the starting position of the measuring ball 4.

[0029] Further, an extension rod 10 extends out from the outer protective shell 1 near the side of the measuring ball 4, and the extension rod 10 extends outward along one end of the outer protective shell 1 to support the measuring ball 4 to reach the measuring position.

[0030] During operation, first use an electric drill to clean the grouting material in the grout outlet hole and remove impurities and ash layers inside the hole. Tighten the pull rope 3 and observe whether the starting line 7 is at the zero scale. If not, replace the parts or repair and then recalibrate until it is correct before using; tighten the pull rope 3 and insert the outer protective shell 1 against the lower edge of the grout outlet until the measuring ball 4 touches the steel bar. Slowly loosen the pull, so that the measuring ball 4 drops down until the measuring ball 4 reaches the top surface of the grouting material. At this time, read the scale as L1. Given that the diameter of the outer protective shell 1 is D, the diameter of the measuring ball 4 is d, the distance between the lower edge of the sleeve grout outlet and the limiter is L, and the designed anchorage length is L0. Sleeve grouting fullness

[0031] F = (L - (L1 + d - D / 2)) / L0 × 100%.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than restrictive technical solutions. Those of ordinary skill in the art should understand that any modifications or equivalent replacements made to the technical solutions of the present utility model without departing from the purpose and scope of the technical solutions should be covered within the scope of the claims of the present utility model.

Claims

1. A device for detecting the fullness of sleeve grouting, characterized in that: It includes an outer protective shell, an observation window, a pull rope and a measuring ball; the outer protective shell is cylindrical in shape; the observation window is located on both sides of the outer protective shell and is connected to the outer protective shell; the pull rope is located at the center of the outer protective shell and runs through the entire outer protective shell; the measuring ball is located at one end of the pull rope and is fixedly connected to the pull rope.

2. A device for detecting the fullness of sleeve grouting according to claim 1, characterized in that: The outer protective shell is configured as an upper shell and a lower shell, and the upper shell and the lower shell are symmetrical to each other and are distributed at the upper and lower ends of the observation window.

3. A device for detecting the fullness of sleeve grouting according to claim 1, characterized in that: The observation window is made of transparent glass, is located in the middle of the outer protective shell, and is used to observe the position of the drawstring in the outer protective shell.

4. A device for detecting the fullness of sleeve grouting according to claim 1, characterized in that: A starting line is arranged on the pull rope, and the starting line is located at the initial position of the measuring ball. When the measuring ball moves, the pull rope is driven to move, and then the starting line is driven to move in the outer protective shell.

5. A device for detecting the fullness of sleeve grouting according to claim 3, characterized in that: A measuring hole is arranged at the center of the observation window, and the measuring hole cooperates with the pull rope to provide a moving space for the pull rope.

6. A device for detecting sleeve grouting fullness according to claim 1, characterized in that: The side surface of the outer protective shell is provided with a scale, and the scale is zero at the starting position of the measuring ball.

7. A device for detecting sleeve grouting fullness according to claim 1, characterized in that: An extension rod extends from one side of the outer protective shell close to the measuring ball, and the extension rod extends outward along one end of the outer protective shell to support the measuring ball to reach the measuring position.

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