A composite rubber plug for a grouting fullness detection main machine

Abstract

The present invention discloses a composite rubber plug for a grouting fullness detection host, belonging to the technical field of building quality inspection. It includes a rubber plug. A through hole is axially provided in the rubber plug. A support sleeve with both ends open is coaxially provided in the through hole. The interior of the support sleeve is hollow and a measuring rod is passed through it. The measuring rod can move axially along the support sleeve. An elastic diaphragm is provided at the left end of the rubber plug. When the measuring rod moves, it can flatten the elastic diaphragm so that the elastic diaphragm is parallel to the left end face of the support sleeve. The composite rubber plug for the grouting fullness detection host provided by the present invention is simple to install, convenient to use, improves the detection efficiency, and reduces the detection cost.

Description

Technical Field

[0001] The invention belongs to the technical field of building quality detection, and more specifically, relates to a composite rubber plug for a grouting fullness detection host. Background Art

[0002] Prefabricated buildings have been increasingly widely used. The prefabricated panels of prefabricated buildings are connected by steel sleeves. When connecting, the steel sleeves need to be filled with grouting material. After the grouting material solidifies, the two prefabricated panels can be connected. The quality of grouting will directly affect the quality of prefabricated buildings. In the field of construction, the fullness of the grouting inside the sleeve can be reflected by grouting pressure.

[0003] In the prior art, there are many methods for detecting the fullness of the grouting connection of the sleeve of the assembled concrete precast panel, mainly including the embedded steel wire pulling method, the embedded sensor method, the endoscope method, the ultrasonic method, the X-ray method, the industrial CT technology, etc., all of which are specially designed detection devices to directly or indirectly measure the fullness of the sleeve grouting. However, the production cost of the detection device is relatively high, and it is not easy to install, and it is impossible to detect sleeves of different shapes. Therefore, the present invention designs a composite rubber plug for measuring the grouting fullness detection host. Through the split design, a handheld measurement host can correspond to rubber plugs of different shapes, and can measure the grouting fullness of sleeves of different shapes. At the same time, the sleeve overflow buckle can be sealed, which is easy to install, improves the measurement efficiency and reduces the measurement cost. Summary of the invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a composite rubber plug for a grouting fullness detection host, aiming to solve the problems of high cost, difficult installation and low detection efficiency of the sleeve grouting fullness detection device in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides a composite rubber plug for a grouting fullness detection host, comprising a rubber plug, the rubber plug is axially provided with a through hole, a support sleeve with openings at both ends is coaxially provided in the through hole, the support sleeve is hollow inside and a measuring rod is passed through, the measuring rod can move axially along the support sleeve, an elastic diaphragm is provided at the left end of the rubber plug, and the measuring rod can flatten the elastic diaphragm when moving, so that the elastic diaphragm and the left end face of the support sleeve are parallel.

[0006] Furthermore, one end of the measuring rod is provided with a limit end for flattening the side wall of the elastic diaphragm, and the support sleeve is provided with a limit step corresponding to the limit end; the other end of the measuring rod is provided with a measuring end for contacting with a handheld measuring host for detection.

[0007] Furthermore, the gap between the outer wall of the measuring rod and the inner wall of the supporting sleeve is 0.5mm-1mm.

[0008] Further, the rubber stopper is cylindrical, conical or irregular in shape.

[0009] Further, the material of the support sleeve has a greater hardness than that of the rubber stopper, and the support sleeve is made of a hard material.

[0010] Further, the limiting end and the measuring end are both disc-shaped.

[0011] Further, the maximum deformation of the elastic diaphragm is greater than or equal to 5 mm.

[0012] Further, the composite rubber stopper plug is a disposable product.

[0013] Generally speaking, compared with the prior art by the above technical solution conceived by the present invention, the following beneficial effects are obtained:

[0014] (1) The composite rubber stopper plug for the grouting fullness detection main machine provided by the present invention can block the slurry overflow port of the sleeve during the grouting process, and a support sleeve is coaxially arranged inside the rubber stopper, and a measuring rod is arranged inside the support sleeve. The slurry pressure inside the sleeve is transmitted to the external hand-held measuring main machine through the measuring rod. Among them, the support sleeve can isolate the pressure generated by the deformation of the rubber stopper, so that the measuring rod can move freely, reducing the measurement error; because the contact area between the front end of the measuring rod and the elastic diaphragm is certain, the slurry pressure inside the grouting sleeve can be indirectly calculated through the pressure data measured by the hand-held measuring main machine. The structure is simple and the calculation is convenient; at the same time, the shape of the rubber stopper can be designed accordingly according to the slurry overflow port of the sleeve, and the detection can be carried out through the hand-held measuring main machine only by replacing the rubber stopper plug. The operation is simple and the detection efficiency is improved; a single hand-held measuring main machine can complete the grouting fullness detection in different sleeves, greatly reducing the detection cost. Description of the Drawings

[0015] Figure 1 is the composite rubber stopper plug for the grouting fullness detection main machine provided by the present invention;

[0016] Figure 2 is a reference diagram of the use of the composite rubber stopper plug for the grouting fullness detection main machine provided by the present invention.

[0017] The structures corresponding to the respective numerical markings in the drawings are: 1 - sleeve, 2 - rubber stopper, 3 - sleeve slurry overflow port, 4 - limiting structure, 5 - measuring rod, 6 - support sleeve, 7 - elastic diaphragm, 8 - hand-held measuring main machine. Detailed Embodiments

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] Referring to Figures 1 to 2 , the present invention provides a composite rubber plug for a grouting fullness detection host, which is installed in the sleeve overflow port 3 of the sleeve 1, can block the sleeve overflow port 3 during the grouting process, and cooperate with the detection host to measure the grouting fullness of the sleeve 1. For convenient use, the composite rubber plug is a disposable item, installed in the sleeve overflow port 3 without the need for disassembly, saving detection time. In the present invention, the detection host is a handheld measurement host 8, as Figure 2 shown, where P and the arrow in the figure represent the direction of slurry pressure transmission in the sleeve 1.

[0020] As Figure 1 shown, the composite rubber plug includes a rubber plug 2. The rubber plug 2 is cylindrical, conical or irregular in shape and can be synchronously designed according to the shape of the sleeve overflow port 3. The rubber plug 2 is axially provided with a through hole, and a support sleeve 6 with both ends open is coaxially arranged in the through hole. The support sleeve 6 is hollow inside and a measuring rod 5 is inserted through it. The measuring rod 5 can move axially along the support sleeve 6. In this embodiment, in order to make the measuring rod 5 move more smoothly during the movement, the gap between the outer wall of the measuring rod 5 and the inner wall of the support sleeve 6 is 0.5 mm - 1 mm. An elastic diaphragm 7 is provided at the left end of the rubber plug 2. When the measuring rod 5 moves, it can flatten the elastic diaphragm 7 to make the elastic diaphragm 7 parallel to the left end face of the support sleeve 6. Among them, the support sleeve 6 can isolate the pressure generated on the measuring rod 5 when the rubber plug 2 is installed and deformed, improving the measurement accuracy. Therefore, the material hardness of the support sleeve 6 is greater than that of the rubber plug 2, and the support sleeve 6 is made of a hard material, such as materials like steel, aluminum alloy or epoxy resin.

[0021] Specifically, as Figure 2 shown, one end of the measuring rod 5 is provided with a limiting end for flattening the side wall of the elastic diaphragm 7, and a limiting step corresponding to the limiting end 7 is provided in the support sleeve 6; the other end of the measuring rod 5 is provided with a measuring end for contacting the handheld measurement host for detection. Specifically, when measuring the grouting fullness, the measuring end contacts the pressure sensing module on the handheld measurement host 8, as Figure 2 shown; further, in this embodiment, the shapes of the limiting end and the measuring end are both disc-shaped.

[0022] When it is necessary to detect the grouting saturation inside the grouting sleeve, first use a composite rubber plug to block the slurry overflow port 3 of the sleeve. Under the action of the internal slurry pressure, the slurry generates a thrust on the measuring rod 5 through the elastic diaphragm 7. To avoid damage to the elastic diaphragm 7 due to excessive slurry pressure, in this embodiment, the maximum deformation of the elastic diaphragm 7 under the action of the slurry pressure is greater than or equal to 5 mm. The measuring rod 5 moves axially outward along the slurry overflow port 3 of the sleeve until it is blocked by the limit step of the support sleeve 6. At a construction site, the construction worker holds the handheld measuring host 8 in hand, makes the measuring end contact the pressure sensing module on the handheld measuring host 8, and pushes the measuring rod 5 to move axially inward along the slurry overflow port 3 of the sleeve. The handheld measuring host 8 moves until the limit structure 4 is blocked by the outer wall of the slurry overflow port 3 of the sleeve. At this time, the measuring rod 5 just flattens the elastic diaphragm 7, and records the measurement data of the handheld measuring host at this time. Since the area of the front end of the measuring rod 5 is constant, the slurry pressure inside the sleeve can be calculated, and the operation is simple and convenient.

[0023] Those skilled in the art can easily understand that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite rubber plug for a grouting fullness detection main machine, characterized in that: It includes a rubber stopper (2). The rubber stopper (2) is axially provided with a through hole, and a support sleeve (6) with both ends open is coaxially arranged in the through hole. The inside of the support sleeve (6) is hollow and a measuring rod (5) is inserted therein. The measuring rod (5) can move axially along the support sleeve (6). An elastic diaphragm (7) is provided at the left end of the rubber stopper (2). When the measuring rod (5) moves, it can flatten the elastic diaphragm (7) so that the elastic diaphragm (7) is parallel to the left end face of the support sleeve (6). One end of the measuring rod (5) is provided with a limiting end for flattening the side wall of the elastic diaphragm (7), and a limiting step corresponding to the limiting end is arranged in the support sleeve (6); the other end of the measuring rod (5) is provided with a measuring end for contacting with a handheld measuring host for detection. The rubber stopper (2) is cylindrical, conical or irregular in shape.

2. The composite rubber plug for the grouting fullness detection main machine according to claim 1, characterized in that: The gap between the outer wall of the measuring rod (5) and the inner wall of the support sleeve (6) is 0.5 mm - 1 mm.

3. The composite rubber plug for the grouting fullness detection main machine according to claim 1, characterized in that: The material hardness of the support sleeve (6) is greater than that of the rubber stopper (2), and the support sleeve (6) is made of a hard material.

4. The composite rubber plug for the grouting fullness detection host according to claim 1, characterized in that: The shapes of both the limiting end and the measuring end are disc-shaped.

5. The composite rubber plug for the grouting fullness detection main machine according to claim 1, characterized in that: The maximum deformation of the elastic diaphragm (7) is greater than or equal to 5 mm.

6. The composite rubber plug for the grouting fullness detection main machine according to claim 1, characterized in that: The composite rubber stopper plug is a disposable item.

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