Embedded sleeve and embedding method thereof

Abstract

The invention discloses a pre-embedded sleeve and a pre-embedding method thereof, and belongs to the technical field of engineering construction, the structure of the pre-embedded sleeve is optimized, the mechanical occlusion between the pre-embedded sleeve and concrete is enhanced by arranging a convex part and / or a concave part, and the drawing resistance and torsion resistance of the pre-embedded sleeve are improved by arranging a plurality of positioning plates; through the combination of the through holes, the notches and the combined design, construction convenience and function expansibility of the embedded sleeve are achieved, the embedded sleeve can be widely applied to concrete structure connection scenes, and the problems that a traditional embedded sleeve is weak in bond stress with concrete, poor in positioning stability, insufficient in construction adaptability, high in cost and the like are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, in particular to a pre-buried sleeve and a pre-buried method thereof. BACKGROUND

[0002] In the field of building engineering, the pre-buried sleeve as an important embedded part directly affects the stability and safety of the entire building structure.

[0003] The traditional pre-buried sleeve is mostly cylindrical, with internal threads on the inner wall, one end is open for threaded connection with a bolt or a reinforcing bar, and the other end is closed to prevent concrete from entering. The material of the pre-buried sleeve is mostly stainless steel, Q235 carbon steel or ordinary cast steel, and the processing technology is simple, mostly cutting or casting. When used, first bind the reinforcing cage in the pre-buried component template, then fix the pre-buried sleeve at the preset position in the template, then pour concrete into the template, and after the concrete hardens, remove the template. The pre-buried sleeve has many important functions: it can be used to install subsequent components after pre-buried, transmit axial force, and compared with on-site welding, it can reduce the difficulty of on-site operation and improve the construction efficiency to a certain extent.

[0004] However, the mechanical engagement between the traditional pre-buried sleeve and the concrete is poor, which leads to insufficient gripping force between the pre-buried sleeve and the concrete, and the pre-buried sleeve is prone to slip when subjected to tension, which cannot guarantee the stability of the structure. SUMMARY

[0005] The purpose of the present application is to provide a pre-buried sleeve and a pre-buried method thereof to solve the problems existing in the prior art, increase the gripping force between the pre-buried sleeve and the concrete, improve the positioning stability and construction adaptability of the pre-buried sleeve, and reduce the construction cost.

[0006] To achieve the above purpose, the present application provides the following solutions: The present application provides a pre-buried sleeve for pre-buried in a concrete structure, and the first end of the pre-buried sleeve is exposed on the surface of the concrete structure, the end of the pre-buried sleeve away from the first end is the second end, the pre-buried sleeve is in the shape of a quadrangular prism or a cylinder, the inner wall of the pre-buried sleeve is provided with internal threads, and the outer wall of the pre-buried sleeve is provided with a protruding part and / or a recessed part.

[0007] Preferably, the shape of the protruding part is half-cylindrical, prismatic or conical, and the shape of the recessed part is half-cylindrical, prismatic or conical.

[0008] Preferably, the second end is provided with a plurality of positioning plates, one end of the positioning plate is fixedly connected with the pre-buried sleeve, and the other end is away from the pre-buried sleeve.

[0009] Preferably, the second end is closed.

[0010] Preferably, the pre-embedded sleeve is in the shape of a quadrangular prism, the pre-embedded sleeve is provided with the protrusions and the recesses on two mutually parallel side walls, the protrusions are a plurality of semicylindrical protrusions arranged uniformly, the semicylindrical protrusions are perpendicular to the axial direction of the pre-embedded sleeve, the recesses are a plurality of semicylindrical recesses arranged uniformly, the semicylindrical recesses are perpendicular to the axial direction of the pre-embedded sleeve, and the semicylindrical protrusions and the semicylindrical recesses are distributed alternately.

[0011] Preferably, the pre-embedded sleeve is provided with a through hole, the through hole is perpendicular to the axial direction of the pre-embedded sleeve, the through hole is close to the second end, one end of the through hole away from the second end is provided with an integrally formed closed end wall, the internal thread is arranged on the side of the closed end wall away from the through hole, and the through hole is used for allowing the main reinforcement of the reinforcement cage in the concrete structure to pass through.

[0012] Preferably, the cross section of the through hole is rectangular or circular.

[0013] Preferably, the pre-embedded sleeve is provided with a notch on the side wall close to the second end, the notch is not communicated with the internal thread, and the notch is used for clamping the main reinforcement of the reinforcement cage in the concrete structure.

[0014] Preferably, the pre-embedded sleeve comprises a connecting cylinder and a base, the internal thread is arranged on the inner wall of the connecting cylinder, the notch is arranged on the side wall of the base, and the connecting cylinder and the base are detachably connected.

[0015] Preferably, the detachable connection is a threaded connection.

[0016] Preferably, the outer wall of the connecting cylinder is provided with threads for enhancing the gripping force of the connecting cylinder and the concrete.

[0017] The application further provides a pre-embedding method based on the pre-embedded sleeve, before pouring concrete, before binding the reinforcement cage in the concrete structure, the main reinforcement of the reinforcement cage is allowed to pass through the through hole, the first end is abutted against the inner wall of the concrete structure, and after the mold is removed, the first end is exposed on the surface of the concrete structure.

[0018] The application further provides a pre-embedding method based on the pre-embedded sleeve, before pouring concrete, the notch is clamped with the main reinforcement of the reinforcement cage in the concrete structure, the first end is abutted against the inner wall of the concrete structure, and after the mold is removed, the first end is exposed on the surface of the concrete structure.

[0019] The application has the following technical effects relative to the prior art: The application discloses a pre-buried sleeve, optimizes the structure of a traditional pre-buried sleeve, is provided with a convex part and / or a concave part, a positioning plate, a through hole and the like structure, further provides a combined pre-buried sleeve, and has the following effects: Firstly, the convex part and / or the concave part and the positioning plate increase the contact area and mechanical engagement force of the pre-buried sleeve and the concrete, not only enhance the gripping force of the pre-buried sleeve and the concrete, avoid the slip of the pre-buried sleeve under tension, but also improve the anti-torsion performance of the pre-buried sleeve, so that the pre-buried sleeve is not prone to rotation under the torque, and the accuracy of subsequent bolt fixing is ensured. Secondly, the through hole is filled with the concrete during the concrete pouring, and after the concrete hardens, the concrete can form a small concrete block integrated with the pre-buried sleeve in the inside of the pre-buried sleeve, the pull-out resistance of the pre-buried sleeve is improved, and if the main reinforcement is passed through the through hole during the binding of the reinforcement cage, the pull-out resistance can be further improved, so that the dependence of the pre-buried sleeve on the adhesive or additional anchor reinforcement is reduced, and the construction difficulty is reduced. In addition, the design of the convex part and / or the concave part and the through hole reduces the material usage, reduces the weight of the pre-buried sleeve, and reduces the material cost. Finally, the combined pre-buried sleeve can be adaptively adjusted according to different building construction projects or different parts of the same construction project, the construction adaptability is enhanced, the pre-buried sleeve can adapt to various complex application scenarios, and the problem that the use scene of the traditional pre-buried sleeve is limited is solved. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0021] Figure 1 It is a pre-buried sleeve structure schematic view in embodiment 1; Figure 2 It is a pre-buried sleeve structure schematic view in embodiment 2; Figure 3 It is a pre-buried sleeve structure schematic view in embodiment 3; Figure 4 It is a connecting cylinder structure schematic view of the combined pre-buried sleeve; Figure 5 It is a base structure schematic view of the combined pre-buried sleeve; In the drawings: 1, semicircular cylindrical convex; 2, positioning plate; 3, through hole; 4, groove; 5, notch; 6, connecting cylinder; 7, base. DETAILED DESCRIPTION

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The purpose of this invention is to provide a pre-embedded sleeve and its pre-embedding method to solve the problems existing in the prior art, increase the bond force between the pre-embedded sleeve and the concrete, improve the positioning stability and construction adaptability of the pre-embedded sleeve, and reduce construction costs.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1 like Figure 1 As shown, the embedded sleeve provided in this embodiment has an internal thread on its inner wall. The embedded sleeve is a quadrangular prism. The first end of the embedded sleeve is exposed on the surface of the concrete structure. The end of the embedded sleeve away from the first end is the second end. The second end is closed, so that when pouring concrete, there is no need to set a sealing cloth or other protective measures for the second end to prevent concrete from entering the inner wall of the embedded sleeve. The second end is provided with several positioning plates 2. One end of the positioning plate 2 is fixedly connected to the embedded sleeve, and the other end is away from the embedded sleeve. The angle between the positioning plate 2 and the embedded sleeve is an obtuse angle. The two parallel side walls of the embedded sleeve are provided with protrusions and recesses. The protrusions are a plurality of evenly arranged semi-cylindrical protrusions 1. The axis of the semi-cylindrical protrusions 1 is perpendicular to the axis of the embedded sleeve. The recesses are a plurality of evenly arranged semi-cylindrical recesses. The axis of the semi-cylindrical recesses is perpendicular to the axis of the embedded sleeve. The semi-cylindrical protrusions 1 and the semi-cylindrical recesses are distributed alternately.

[0026] The semicylindrical protrusions 1 and the semicylindrical recesses increase the contact area between the embedded sleeve and the concrete, enhance the mechanical interlocking force between the embedded sleeve and the concrete, and tightly interlock the semicylindrical protrusions 1 and the semicylindrical recesses with the surrounding concrete. When the embedded sleeve is subjected to an outward pulling force, the semicylindrical protrusions 1 and the semicylindrical recesses will squeeze and rub the surrounding concrete, and the surrounding concrete will resist the separation of the tooth-shaped protrusions 1 and the semicylindrical recesses from the interlocking state through a counterforce, thereby firmly fixing the embedded sleeve in the original position and improving the pull-out resistance of the embedded sleeve. In addition, the traditional embedded sleeve with a smooth outer periphery is prone to relative sliding with the surrounding concrete during torsion, while the embedded sleeve provided by the application increases the contact area with the concrete and enhances the mechanical interlocking force between the embedded sleeve and the concrete, thereby improving the resistance to relative rotation with the concrete and making it more difficult for the embedded sleeve to rotate relative to the concrete, and improving the torsion performance of the embedded sleeve.

[0027] During concrete pouring, the concrete slurry can flow along the positioning plate 2 of the embedded sleeve under the action of gravity and vibration, and fill around the positioning plate 2. After the concrete hardens, the concrete around the positioning plate 2 of the embedded sleeve will completely wrap it, forming a self-locking structure with the embedded sleeve. When the embedded sleeve is subjected to an outward pulling force, the positioning plate 2 of the embedded sleeve will squeeze the surrounding hardened concrete, and the surrounding hardened concrete will firmly fix the positioning plate 2 through a counterforce, thereby preventing it from expanding outward.

[0028] Most traditional embedded sleeves are cylindrical. The embedded sleeve provided by the application can be changed to a quadrangular prism. After the concrete hardens, the traditional cylindrical embedded sleeve is prone to rotation along its axis, and the torsion resistance depends entirely on the surface roughness of the embedded sleeve. The edges and flat surfaces of the quadrangular prism embedded sleeve can directly interlock with the surrounding concrete, increasing the resistance to rotation of the quadrangular prism embedded sleeve around its axis, and thereby enhancing its torsion resistance.

[0029] Compared with traditional embedded sleeves, the embedded sleeve provided by the application has greatly improved pull-out resistance and torsion resistance, thereby reducing the dependence of the embedded sleeve on auxiliary materials for improving its pull-out resistance and torsion resistance, and greatly reducing the construction cost and construction difficulty.

[0030] Example 2 As Figure 2As shown, the pre-embedded sleeve provided by the embodiment has an inner thread on the inner wall of the sleeve, the pre-embedded sleeve is in the shape of a quadrangular prism, the first end of the pre-embedded sleeve is exposed on the surface of the concrete structure, the second end of the pre-embedded sleeve is away from the first end, the second end is closed, and the second end does not need to be protected by a sealing cloth or the like when the concrete is poured to prevent the concrete from entering the inner wall of the pre-embedded sleeve. The second end is provided with a plurality of positioning plates 2, one end of the positioning plate 2 is fixedly connected with the pre-embedded sleeve, the other end is away from the pre-embedded sleeve, and the included angle between the positioning plate 2 and the pre-embedded sleeve is obtuse. The pre-embedded sleeve is provided with a through hole 3, the axial direction of the through hole 3 is perpendicular to the axial direction of the pre-embedded sleeve, the through hole 3 is close to the second end, and one end of the through hole 3 away from the second end is provided with a plugging piece. The inner thread is arranged on the side of the plugging piece away from the through hole 3, so that the concrete does not enter the inner wall of the pre-embedded sleeve provided with the inner thread through the through hole when the concrete is poured. The through hole 3 is used for the main reinforcement of the reinforcement cage in the concrete structure to pass through. The outer wall of the pre-embedded sleeve is provided with a groove 4 distributed in the circumferential direction.

[0031] Before the reinforcement cage is bound, the main reinforcement of the reinforcement cage passes through the through hole 3 of the pre-embedded sleeve. When the concrete is poured, the concrete slurry can flow down along the through hole 3 in the pre-embedded sleeve under the action of gravity and vibration, fill the through hole 3, and have no obvious gap with the through hole 3. After the concrete hardens, the concrete can form a small concrete block integrated with the pre-embedded sleeve in the inside of the pre-embedded sleeve. The block is usually referred to as a stud. The material and density of the stud are completely consistent with those of the other concrete around the pre-embedded sleeve, and the stud and the pre-embedded sleeve form a rigid connection with the other concrete around the pre-embedded sleeve. The main reinforcement in the through hole 3 of the pre-embedded sleeve also forms an integral body with the concrete stud. Since the tensile strength of the main reinforcement is much higher than that of the concrete, the main reinforcement can better bear the tensile force transmitted by the stud. When the pre-embedded sleeve is subjected to an outward pulling force, the pre-embedded sleeve exerts pressure on the concrete stud. The concrete stud prevents the pre-embedded sleeve from being separated from the concrete under the action of the pulling force by means of a counterforce. In other words, a reinforcing piece is added to the inside of the stud, which can better improve the pull-out resistance of the pre-embedded sleeve. In addition, the weight of the pre-embedded sleeve is reduced due to the through hole 3, and the material cost of the pre-embedded sleeve as a whole is also reduced.

[0032] Embodiment 3 As Figure 3As shown, the inner wall of the pre-buried sleeve provided by the embodiment is provided with internal threads, the pre-buried sleeve is in quadrangular prism shape, the first end of the pre-buried sleeve is exposed on the surface of the concrete structure, the end of the pre-buried sleeve away from the first end is the second end, the second end is closed, so that the second end does not need to be protected by sealing cloth and the like when pouring concrete to prevent concrete from entering the inner wall of the pre-buried sleeve, the second end is provided with a plurality of positioning plates 2, one end of the positioning plate 2 is fixedly connected with the pre-buried sleeve, the other end is away from the pre-buried sleeve, and the included angle between the positioning plate 2 and the pre-buried sleeve is obtuse, the pre-buried sleeve is provided with a through hole 3, the axial direction of the through hole 3 is perpendicular to the axial direction of the pre-buried sleeve, the through hole 3 is close to the second end, and the end of the through hole 3 away from the second end is provided with a plugging piece, the internal threads are arranged on the side of the plugging piece away from the through hole 3, so that the concrete does not enter the inner wall of the pre-buried sleeve provided with internal threads through the through hole when pouring concrete, the outer wall of the pre-buried sleeve is provided with grooves 4 distributed in the circumferential direction, the grooves 4 close to the second end are provided with two notches 5 for clamping the main reinforcement of the steel reinforcement cage, the two notches 5 are not communicated with the internal threads, preventing the concrete from entering the inner wall of the pre-buried sleeve provided with internal threads through the notches 5 when pouring concrete, the length of the notch 5 in the direction parallel to the axis of the pre-buried sleeve is the width of the notch 5, the length of the notch 5 in the direction perpendicular to the axis of the pre-buried sleeve is the depth of the notch 5, and the width and the depth of the notch 5 are both greater than the diameter of the main reinforcement of the steel reinforcement cage, the pre-buried sleeve provided by the embodiment improves the combination mode of the pre-buried sleeve and the main reinforcement of the steel reinforcement cage.

[0033] Before the improvement, the main reinforcement of the steel reinforcement cage needs to be passed through the through hole 3 of the pre-buried sleeve and positioned in sequence, and then the steel reinforcement cage is bound, if the length of the main reinforcement is too long, it is difficult to pass through the through hole 3 of the pre-buried sleeve, and in addition, the position of the pre-buried sleeve needs to be adjusted repeatedly after being passed in, and if the subsequent binding of the steel reinforcement cage deviates, the pre-buried sleeve is prone to misplacement, which needs to be disassembled and reassembled, seriously affecting the construction efficiency. After the improvement, the steel reinforcement cage is bound first, and then the pre-buried sleeve is placed at a suitable point, so that the notch 5 at the through hole 3 clamps the main reinforcement of the steel reinforcement cage to form an anchoring effect, the above installation process can ignore the position of the pre-buried sleeve, the binding of the steel reinforcement cage is completed according to the specification first, and then the notch 5 of the pre-buried sleeve clamps the main reinforcement after the steel reinforcement cage is integrally formed and fixed in position, so that the main reinforcement does not need to be passed through the through hole 3 of the pre-buried sleeve, solving the problem of great construction difficulty caused by the length of the main reinforcement being too long, and if it is found that the position of the pre-buried sleeve deviates after being clamped with the steel reinforcement cage, or the pre-buried sleeve needs to be replaced, the pre-buried sleeve can be quickly taken down through the notch 5, without the need to disassemble and reassemble the steel reinforcement cage, greatly reducing the construction cost and improving the construction efficiency.

[0034] Embodiment 4 As Figure 4 and Figure 5As shown, the embodiment provides a combined embedded sleeve composed of a connecting cylinder 6 and a base 7. The inside of the connecting cylinder 6 is provided with two sets of internal threads, one set of internal threads for threaded connection with the base 7, and one set of internal threads for connection with a bolt. One end of the base 7 is provided with a cylindrical fastener threaded with the connecting cylinder 6, and the other end of the base 7 is closed, so that when pouring concrete, it is not necessary to protect the other end of the base 7 with a sealing cloth or the like to prevent concrete from entering the inner wall of the base 7. The other end of the base 7 is provided with a plurality of positioning plates 2, one end of the positioning plate 2 is fixedly connected with the base 7, the other end is away from the base 7, and the included angle between the positioning plate 2 and the base 7 is obtuse. The outer wall of the base 7 is provided with a circumferentially distributed groove 4, the groove 4 is provided with a through hole 3, the through hole 3 is provided with two notches 5 for clamping the main reinforcement of the reinforcement cage, the length of the notch 5 in the direction parallel to the axis of the base 7 is the width of the notch 5, the length of the notch 5 in the direction perpendicular to the axis of the base 7 is the depth of the notch 5, and the width and depth of the notch 5 are both greater than the diameter of the main reinforcement of the reinforcement cage.

[0035] The connecting cylinder 6 and the base 7 are processed in different molds. The base 7 can provide great pull-out resistance, and the connecting cylinder 6 can be shortened in length by cutting to meet the length requirements of the embedded sleeve in different working conditions. The outer wall of the connecting cylinder 6 is provided with an annular tooth to improve the pull-out resistance, and the internal threads of the connecting cylinder 6 for connection with the bolt can be made to different lengths as needed when the connecting cylinder 6 is manufactured. Each project has different technical requirements, and the same project also has different specification requirements. The traditional embedded sleeve is processed in a single mold, and different molds need to be replaced for processing different specifications of the embedded sleeve, which are not interchangeable. This kind of embedded sleeve can always be processed in the same mold. First, a relatively long connecting cylinder 6 is produced, and then the length of the connecting cylinder 6 is shortened by cutting to meet the requirements according to different projects and specifications. For example, the requirements for the embedded sleeve are different at different positions in the same ring of a shield pipe gallery, and this kind of embedded sleeve can meet the requirements without changing the specifications, and can cope with various complex application scenarios according to the stress conditions of different points.

[0036] Embodiment 5 The application also provides a method for embedding the embedded sleeve of embodiment 2: before pouring concrete, the main reinforcement of the reinforcement cage is passed through the through hole 3, and then the main reinforcement is bound. The completed reinforcement cage is hoisted into the mold for pouring concrete, the spatial position of the reinforcement cage is fixed by the positioning support, the first end of the embedded sleeve is fixed at the preset position of the mold for pouring concrete, and abuts against the inner wall of the mold, so that after the mold is removed, the first end of the embedded sleeve is exposed on the surface of the concrete structure. Then, pouring concrete into the mold is started, and the surrounding area of the embedded sleeve is intensively vibrated by using a vibrating device during the pouring process. After the concrete hardens, the mold is removed.

[0037] Example 6 The application also provides a pre-burying method based on the pre-burying sleeve of example 3 and example 4: before pouring concrete, according to the design drawing, the reinforcement cage is bound, then the gap 5 is connected with the main reinforcement of the reinforcement cage, the first end of the pre-burying sleeve is fixed on the preset position of the mold for pouring concrete, and is in abutment with the inner wall of the mold, so that after the mold is removed, the first end of the pre-burying sleeve is exposed on the surface of the concrete structure, then the pouring of concrete into the mold is started, the surrounding area of the pre-burying sleeve is focused on during the pouring process by using a vibrating device, and after the concrete hardens, the mold is removed.

[0038] The principles and implementation manners of the application are described by using specific examples in the application, and the above examples are only used to help understand the method of the application and its core idea; meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation manners and application ranges will be changed. In conclusion, the content of the specification should not be understood as a limitation of the application.

Claims

1. A pre-embedded sleeve, characterized by: The embedded sleeve is used for being embedded in a concrete structure, a first end of the embedded sleeve is exposed on a surface of the concrete structure, an end of the embedded sleeve away from the first end is a second end, the embedded sleeve is in a quadrangular prism shape or a cylindrical shape, an inner wall of the embedded sleeve is provided with an internal thread, and an outer wall of the embedded sleeve is provided with a protrusion and / or a recess.

2. The pre-embedded sleeve of claim 1, wherein: The protrusion is in a semi-cylindrical shape, a prismatic shape or a conical shape, and the recess is in a semi-cylindrical shape, a prismatic shape or a conical shape.

3. The pre-embedded sleeve of claim 1, wherein: The second end is provided with a plurality of positioning plates, one end of the positioning plate is fixedly connected with the embedded sleeve, and the other end is away from the embedded sleeve.

4. The pre-embedded sleeve of claim 1, wherein: The second end is closed.

5. A preformed sleeve according to claim 1, 3 or 4, characterised in that: The embedded sleeve is in a quadrangular prism shape, the embedded sleeve is provided with the protrusion and the recess on two mutually parallel side walls, the protrusion is a plurality of semi-cylindrical protrusions arranged uniformly, an axial direction of the semi-cylindrical protrusion is perpendicular to an axial direction of the embedded sleeve, the recess is a plurality of semi-cylindrical recesses arranged uniformly, an axial direction of the semi-cylindrical recess is perpendicular to the axial direction of the embedded sleeve, and the semi-cylindrical protrusions and the semi-cylindrical recesses are distributed alternately.

6. A preformed sleeve according to any one of claims 1 to 4, wherein: The embedded sleeve is provided with a through hole, an axial direction of the through hole is perpendicular to the axial direction of the embedded sleeve, the through hole is close to the second end, one end of the through hole away from the second end is provided with an integrally formed closed end wall, the internal thread is arranged on a side of the closed end wall away from the through hole, and the through hole is used for allowing a main reinforcement of a reinforcement cage in the concrete structure to pass through.

7. A preformed sleeve according to any one of claims 1 to 4, wherein: The embedded sleeve is provided with a notch on a side wall close to the second end, the notch is not communicated with the internal thread, and the notch is used for being clamped with the main reinforcement of the reinforcement cage in the concrete structure.

8. The pre-embedded sleeve of claim 7, wherein: The embedded sleeve comprises a connecting cylinder and a base, the internal thread is arranged on an inner wall of the connecting cylinder, the notch is arranged on a side wall of the base, and the connecting cylinder and the base are detachably connected.

9. A method of embedding a sleeve as claimed in claim 5, characterized in that: Before pouring concrete, before binding the reinforcement cage in the concrete structure, the main reinforcement of the reinforcement cage is caused to pass through the through hole, the first end is caused to abut against an inner wall of the concrete structure, so that after the mold is removed, the first end is exposed on the surface of the concrete structure.

10. A method of embedding a sleeve as claimed in claim 7 or 8, characterized in that: Before pouring concrete, the notch is caused to be clamped with the main reinforcement of the reinforcement cage in the concrete structure, the first end is caused to abut against the inner wall of the concrete structure, so that after the mold is removed, the first end is exposed on the surface of the concrete structure.

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