Concrete anchoring glue injection device and construction method thereof

Abstract

The application discloses a concrete anchorage bar glue injection device and a construction method thereof, and belongs to the technical field of concrete structure construction. The device comprises a plugging sleeve which is movably arranged in a large-size hole in the bottom of a concrete structure, the outer diameter of the plugging sleeve is matched with the inner diameter of the large-size hole, the plugging sleeve has a closed end and an open end, the closed end is provided with a slurry outlet and is attached to the bottom of the large-size hole; a conveying hard pipe is arranged along the axial direction of the plugging sleeve, one end of the conveying hard pipe is detachably connected to the inner wall of the closed end, the port of the conveying hard pipe is communicated with the slurry outlet, the other end of the conveying hard pipe extends to the outside of the large-size hole, and the other end of the conveying hard pipe is provided with a scale line which is arranged along the length direction of the conveying hard pipe. The application solves the problem that the anchorage bar quality of the large-size hole in the bottom of the concrete structure is not controlled.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a concrete rebar injection device and its construction method. Background Technology

[0002] Currently, during building construction, situations such as post-construction reinforcement, structural abandonment, and design changes arise, making rebar reinforcement with anchoring adhesive the preferred choice for construction. Anchoring adhesive technology is mature, and its application is relatively simple, leading to its widespread use in building engineering. However, due to limitations in the grouting tube of the caulking gun, the adhesive often fails to compact completely at the bottom when anchoring deeper and larger diameter rebars, especially at the bottom of concrete structures. This makes it difficult to ensure the adhesive fills the gaps between the rebar and the hole wall completely, and it's also impossible to determine the correct amount of adhesive to inject, resulting in adhesive waste and uncontrolled rebar installation quality.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, a concrete rebar injection device and its construction method are provided to solve the problem of uncontrolled rebar quality in large-sized holes at the bottom of concrete structures.

[0005] To achieve the above objectives, a concrete rebar injection device is provided, comprising:

[0006] A sealing sleeve is used to be movably installed in a large-sized hole at the bottom of a concrete structure. The outer diameter of the sealing sleeve is adapted to the inner diameter of the large-sized hole. The sealing sleeve has a closed end and an open end. The closed end has a grout outlet and fits against the bottom of the large-sized hole.

[0007] A conveying rigid pipe is arranged along the axial direction of the sealing sleeve. One end of the conveying rigid pipe is detachably connected to the inner wall of the closed end, and the port of the conveying rigid pipe is connected to the grout outlet. The other end of the conveying rigid pipe extends to the outside of the large-size hole. The other end of the conveying rigid pipe is provided with a scale line, which is arranged along the length direction of the conveying rigid pipe. After the anchoring adhesive is injected into the conveying rigid pipe, the anchoring adhesive is injected between the closed end and the bottom of the hole through the grout outlet and pushes the sealing sleeve toward the opening of the large-size hole. The moving distance of the sealing sleeve is determined by the scale line to determine the amount of anchoring adhesive injected into the large-size hole.

[0008] Furthermore, the inner wall of the closed end is formed with a connecting flange, which is arranged in a circle along the circumference of the slurry outlet, and the conveying rigid pipe is detachably inserted into the connecting flange.

[0009] Furthermore, the connecting flange has an internal thread, the conveying rigid tube has an external thread, and the conveying rigid tube is threadedly connected to the connecting flange.

[0010] Furthermore, the conveying rigid pipe and the sealing sleeve are coaxially arranged.

[0011] Furthermore, the delivery tube is connected to the glue gun via a glue injection hose.

[0012] This invention provides a construction method for a concrete rebar injection device, comprising the following steps:

[0013] The sealing sleeve is movably installed in a large-sized hole at the bottom of the concrete structure, such that the closed end of the sealing sleeve is aligned with the bottom of the large-sized hole, and the open end of the sealing sleeve faces the opening of the large-sized hole.

[0014] Connect the glue gun to the delivery tube via the glue dispensing hose;

[0015] The glue injection gun injects the rebar adhesive through the delivery tube and the outlet of the closed end between the closed end and the bottom of the hole. The rebar adhesive injected into the bottom of the hole pushes the sealing sleeve toward the opening of the large-sized hole. The movement distance of the sealing sleeve is observed through the scale line on the delivery tube to determine the amount of rebar adhesive injected into the large-sized hole.

[0016] When the injection volume reaches the design requirements, the reinforcing bar is inserted into the large-diameter hole to compress the anchoring adhesive, so that the anchoring adhesive fills the gap between the reinforcing bar and the hole wall of the large-diameter hole.

[0017] The beneficial effects of this invention are that the concrete rebar injection device of this invention, when applied to rebar construction, makes the rebar injection adhesive fill the large-sized rebar holes more densely and prevents it from falling off. It is especially suitable for rebar injection in large-diameter, deep holes at the bottom of concrete structures, effectively preventing the adhesive from falling off, making the adhesive filling less dense and the injection volume more accurate. This not only simplifies the on-site construction process but also improves the construction quality of rebar injection. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the concrete rebar injection device according to an embodiment of the present invention.

[0020] Figure 2 This is a top view of the concrete rebar injection device according to an embodiment of the present invention.

[0021] Figures 3 to 6 This is a schematic diagram illustrating the construction steps of the concrete rebar injection device according to an embodiment of the present invention. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Reference Figures 1 to 6 As shown, the present invention provides a concrete rebar injection device, comprising: a sealing sleeve 1 and a conveying rigid pipe 2.

[0025] The sealing sleeve 1 is used to be movably installed in a large-sized hole at the bottom of the concrete structure 5. The outer diameter of the sealing sleeve 1 is adapted to the inner diameter of the large-sized hole. The sealing sleeve 1 has a closed end a and an open end b. The closed end a has a grout outlet. The closed end a is fitted to the bottom of the large-sized hole.

[0026] In this embodiment, the bottom of the large-sized hole is planar, and the end face of the corresponding closed end is planar to match the shape of the bottom of the large-sized hole.

[0027] The conveying rigid pipe 2 is arranged along the axial direction of the sealing sleeve 1. The length of the conveying rigid pipe 2 is greater than the length of the sealing sleeve. One end of the conveying rigid pipe 2 is detachably connected to the inner wall of the closed end a.

[0028] In this embodiment, the sealing sleeve is available in various sizes to accommodate large holes of different dimensions. By selecting a sealing sleeve suitable for large holes, it can be applied to various construction scenarios. One end of the conveying rigid pipe 2 is connected to the slurry outlet. The other end of the conveying rigid pipe 2 extends to the outside of the large hole. A graduation line c is provided at the other end of the conveying rigid pipe 2. The graduation line c is set along the length of the conveying rigid pipe 2.

[0029] After injecting the anchoring adhesive 7 into the conveying rigid pipe 2, the anchoring adhesive 7 is injected between the closed end a and the bottom of the hole through the grout outlet and pushes the sealing sleeve 1 toward the opening of the large-sized hole. The moving distance of the sealing sleeve 1 is judged by the scale line c to determine the amount of anchoring adhesive 7 injected into the large-sized hole.

[0030] For example, if the design requirement for the amount of adhesive injected into each large-sized hole is n, then after the adhesive is injected, the sealing sleeve is pushed out towards the opening of the large-sized hole by n, which means that the amount of adhesive injected into the large-sized hole has reached the design requirement.

[0031] In a preferred embodiment, a connecting flange is formed on the inner wall of the closed end a. The connecting flange is arranged in a ring along the circumference of the slurry outlet. The conveying rigid pipe 2 is detachably inserted into the connecting flange.

[0032] In this embodiment, the connecting flange has an internal thread. The conveying rigid tube 2 has an external thread. The conveying rigid tube 2 is threadedly connected to the connecting flange.

[0033] The delivery tube 2 is coaxially arranged with the sealing sleeve 1. The delivery tube 2 is connected to the glue gun 4 through the glue injection hose 3.

[0034] In some embodiments, the sealing sleeve is an inflatable air bladder. The inflatable air bladder is annular. The delivery tube is inserted into the inner annular hole of the inflatable air bladder.

[0035] In use, first insert the uninflated airbag into the bottom of the large-sized hole, with the airbag and the hole coaxially aligned. After the airbag is in contact with the bottom of the hole, inflate it, making its outer diameter fit the hole and its circumference fit against the hole wall. Finally, inject anchoring adhesive between the airbag and the bottom of the hole through a delivery tube. The adhesive then pushes the airbag, causing it and the delivery tube to move towards the opening of the hole.

[0036] See Figures 3 to 6 As shown, the present invention provides a construction method for a concrete rebar injection device, comprising the following steps:

[0037] S1: As Figure 3 As shown, the sealing sleeve 1 is movably installed in the large-sized hole at the bottom of the concrete structure 5, such that the closed end a of the sealing sleeve 1 is aligned with the bottom of the large-sized hole, and the open end b of the sealing sleeve 1 is positioned facing the opening of the large-sized hole.

[0038] S2: Continue reading Figure 3 As shown, the glue gun 4 is connected to the delivery tube 2 via the glue hose 3.

[0039] S3: See also Figure 4As shown, the glue gun 4 injects the anchoring adhesive 7 through the delivery hard pipe 2 and the grout outlet of the closed end a between the closed end a and the bottom of the hole. The anchoring adhesive 7 injected into the bottom of the hole pushes the sealing sleeve 1 towards the opening of the large-sized hole. The movement distance of the sealing sleeve 1 is observed by the scale line c on the delivery hard pipe 2 to determine the amount of anchoring adhesive 7 injected into the large-sized hole.

[0040] S4: See also Figure 5 and Figure 6 As shown, when the injection volume reaches the design requirements, the reinforcing bar 6 is inserted into the large-diameter hole to compress the anchoring adhesive 7, so that the anchoring adhesive 7 fills the gap between the reinforcing bar 6 and the hole wall of the large-diameter hole.

[0041] The concrete rebar injection device of the present invention is applied in rebar construction, which makes the rebar injection adhesive fill the large-sized rebar holes more densely and prevents it from falling off. It is especially suitable for rebar injection in large-diameter, deep holes at the bottom of concrete structures. It can effectively prevent the adhesive from falling off, making the adhesive filling less dense and the injection volume more accurate. It not only simplifies the on-site construction process, but also improves the construction quality of rebar injection.

[0042] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A concrete adhesive anchoring device, characterized in that, The application relates to a blocking sleeve movably arranged in a large-size hole in the bottom of a concrete structure, wherein the outer diameter of the blocking sleeve is matched with the inner diameter of the large-size hole, the blocking sleeve has a closed end and an open end, the closed end is provided with a grout outlet and is matched with the hole bottom of the large-size hole; a conveying hard tube is arranged along the axial direction of the blocking sleeve, one end of the conveying hard tube is detachably connected to the inner wall of the closed end, the port of the conveying hard tube is communicated with the grout outlet, the other end of the conveying hard tube extends to the outside of the large-size hole, the other end of the conveying hard tube is provided with a scale line arranged along the length direction of the conveying hard tube, after the anchoring adhesive is injected into the conveying hard tube, the anchoring adhesive is injected between the closed end and the hole bottom through the grout outlet and pushes the blocking sleeve to move towards the hole opening of the large-size hole, and the moving distance of the blocking sleeve is determined through the scale line to determine the injection amount of the anchoring adhesive in the large-size hole. The inner wall of the closed end is formed with a connecting flange, the connecting flange is arranged along the circumferential direction of the grout outlet, and the conveying hard tube is detachably inserted into the connecting flange. The connecting flange is formed with an internal thread, the conveying hard tube is formed with an external thread, and the conveying hard tube is threadedly connected to the connecting flange.

2. The concrete post-injection device according to claim 1, characterized in that, The conveying hard tube is coaxially arranged with the blocking sleeve.

3. The concrete post-installed adhesive injection device of claim 2, wherein, The conveying hard tube is connected to the glue injection gun through a glue injection hose.

4. The concrete post-installed adhesive injection device of claim 1, wherein, The application further relates to a method for injecting anchoring adhesive into a large-size hole in the bottom of a concrete structure, which comprises the following steps:

5. The concrete post-installed adhesive bonded anchor device of claim 1, wherein, arranging a blocking sleeve movably in a large-size hole in the bottom of a concrete structure, so that the closed end of the blocking sleeve is matched with the hole bottom of the large-size hole, and the open end of the blocking sleeve is arranged towards the hole opening of the large-size hole; 6. A method of constructing the concrete anchoring and glue injecting device according to any one of claims 1 to 5, characterized in that, connecting a glue injection gun to a conveying hard tube through a glue injection hose; injecting anchoring adhesive into the closed end and the hole bottom through the conveying hard tube and the grout outlet of the closed end by the glue injection gun, pushing the anchoring adhesive in the hole bottom to move the blocking sleeve towards the hole opening of the large-size hole, and observing the moving distance of the blocking sleeve through the scale line on the conveying hard tube to determine the injection amount of the anchoring adhesive in the large-size hole; when the injection amount reaches the design requirement, inserting a steel bar into the large-size hole to extrude the anchoring adhesive, so that the anchoring adhesive is filled in the gap between the steel bar and the hole wall of the large-size hole. ​ ​

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