Semi-grouting sleeve with grouting structure and construction method of semi-grouting sleeve

Abstract

In order to solve the problem that an existing semi-grouting sleeve cannot ensure that a grouting material is compactly filled between a second steel bar and the sleeve, the semi-grouting sleeve with the grouting structure comprises a sleeve body, a one-way sealing sleeve and a grouting plug, the sleeve body is embedded in a prefabricated part, and the one-way sealing sleeve is embedded in the sleeve body. A partition plate perpendicular to the axis of an inner cavity of the sleeve is arranged in the middle of the inner cavity of the sleeve and divides the inner cavity of the sleeve into a first cavity and a second cavity which are independent. By the adoption of the structure, connection between the first reinforcing steel bar and the second reinforcing steel bar can be achieved, it can be guaranteed that the space between the second reinforcing steel bar and the sleeve is compactly filled with grouting materials, the overall quality can be effectively guaranteed, and great convenience is brought to connection work of the first reinforcing steel bar and the second reinforcing steel bar of a prefabricated building.

Description

Technical Field

[0001] The invention belongs to the technical field of prefabricated component steel bar butt joint construction, and particularly relates to a semi-grouting sleeve with a grouting structure and a construction method thereof. Background Art

[0002] The semi-grouting sleeve connection method refers to the method in which one end of one of the two steel bars that need to be connected between prefabricated components is threadedly connected to one end of the sleeve, and then one end of the other steel bar is inserted into the other end of the sleeve. Subsequently, the special grouting material is filled in the gap between the sleeve and the other steel bar. When the grouting material solidifies, the force-transmitting steel bar connection is realized. The semi-grouting sleeve is one of the commonly used steel bar connection methods in my country's prefabricated buildings.

[0003] At present, when construction workers are connecting the steel bars between prefabricated components, they first connect one end of one of the two steel bars that need to be connected to one end of the sleeve through a thread, and then insert one end of the other steel bar into the other end of the sleeve, and then fill the gap between the sleeve and the other steel bar with special grouting material. After the grouting material solidifies between the other steel bar and the sleeve, it forms a solid that wraps the steel bar to be connected, thereby realizing the steel bar connection. Although this method can achieve the connection between the steel bars, it cannot ensure that the grouting material is filled more densely between the other steel bar and the sleeve, and the overall quality is difficult to be effectively guaranteed, which brings great inconvenience to the steel bar connection work of prefabricated buildings. Summary of the invention

[0004] In order to ensure that the grouting material is relatively densely filled between the second steel bar and the sleeve and to guarantee the construction quality, the present invention provides a semi-grouting sleeve with a grouting structure and a construction method thereof.

[0005] The technical solution of a semi-grouting sleeve with a grouting structure of the present invention is as follows:

[0006] A semi-grouting sleeve with a grouting structure, characterized in that it comprises

[0007] A sleeve capable of butting two steel bars of a prefabricated component together, the sleeve being embedded in the prefabricated component, and a partition perpendicular to the axis of the sleeve being provided in the middle of the sleeve inner cavity, the partition dividing the sleeve inner cavity into two independent first cavities and a second cavity;

[0008] a grouting hole for injecting grouting material into the second cavity of the sleeve, wherein the grouting hole is arranged at a middle position of the upper side of the sleeve and is connected to the second cavity;

[0009] a one-way seal capable of sealing the grouting material poured into the second cavity of the sleeve, wherein the one-way seal is sealed on the end of the second cavity of the sleeve;

[0010] A grouting plug capable of tightly pressing the grouting material between the second steel bar inserted into the second cavity and the sleeve and ensuring the density of the grouting material is provided in the grouting hole.

[0011] Furthermore, a first internal thread is provided on the inner circumferential surface of the first cavity, and a first external thread matching the first internal thread is provided at the end of the first steel bar inserted therein, and is fixed to the steel bar inserted therein by a threaded connection.

[0012] Furthermore, the one-way envelope includes

[0013] A covering ring, the covering ring covers the end of the second cavity of the sleeve, and the inner diameter of the covering ring is the same as the outer diameter of the steel bar inserted into the second cavity;

[0014] After a grouting material is poured into the second cavity of the sleeve through the grouting hole, its edge can be pressed on the inner surface of the sealing ring and the sealing soft pad can be opened when the second steel bar in the second cavity is inserted, and the upper end of the sealing soft pad is connected to the sealing ring.

[0015] Furthermore, an overflow port is provided in the middle of the grouting plug along its axial direction, which can allow excess grouting material to flow out from the inside when the second steel bar is inserted into the second cavity of the sleeve.

[0016] Furthermore, a valve is provided on the grouting plug at the discharge port of the overflow port.

[0017] Furthermore, an external thread matching the internal thread arranged on the inner surface of the grouting hole is provided on the outer peripheral surface of the grouting plug.

[0018] The present invention also provides a construction method of a semi-grouting sleeve with a grouting structure, which is characterized by comprising the following steps:

[0019] The first step is to make a semi-grouting sleeve and cover the end of the second cavity of the sleeve with a one-way sleeve;

[0020] Step 2: During the manufacturing process of the prefabricated component, the semi-grouting sleeve is buried in the prefabricated component;

[0021] Step 3: After the prefabricated component is transported to the construction site, grouting material is poured into the second cavity of the sleeve from the grouting hole until the grouting material fills the second cavity of the sleeve;

[0022] Step 4: hoisting the prefabricated component, connecting and fixing the first steel bar to be butted in the first cavity by threaded connection, and then inserting the second steel bar into the second cavity of the sleeve through the one-way sleeve. During the insertion of the second steel bar into the second cavity, the excess grouting material will flow out through the overflow port of the grouting plug, and the valve is in the open state at this time;

[0023] Step 5: After the second steel bar is inserted into the second cavity, the construction personnel close the valve and prevent the grouting material from flowing out through the overflow port;

[0024] Step 6: The construction personnel twist the grouting plug to move the grouting plug downward along the axis of the grouting hole as a whole, so that it is pressed inward to the bottom of the grouting hole, thereby tightly compacting the grouting material between the second steel bar and the sleeve inserted in the second cavity;

[0025] Step 7: Remove the support after the curing time.

[0026] The present invention provides a semi-grouting sleeve with a grouting structure and a construction method thereof. The semi-grouting sleeve has a reasonable overall design, a simple structure, and is easy to construct. The above structure can not only achieve the connection between the first steel bar and the second steel bar, but also ensure that the grouting material is more densely filled between the second steel bar and the sleeve, and the overall quality can be effectively guaranteed, which brings great convenience to the connection work between the first steel bar and the second steel bar of the prefabricated building. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a semi-grouting sleeve with a grouting structure of the present invention before the steel bars are inserted into the butt joint.

[0028] Figure 2 It is a structural schematic diagram of a semi-grouting sleeve with a grouting structure of the present invention after the steel bars to be butted are inserted. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are all in very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0030] Example 1

[0031] refer to Figure 1 to Figure 2 A semi-grouting sleeve with a grouting structure in this embodiment includes a sleeve 100, a one-way sleeve 200 and a grouting plug 300.

[0032] The sleeve 100 enables the first steel bar 400 and the second steel bar 500 of the prefabricated component to complete the docking work. The sleeve 100 is buried in the prefabricated component. A partition 700 perpendicular to its axis is provided in the middle of the inner cavity of the sleeve 100. The partition 700 divides the inner cavity of the sleeve 100 into two independent first cavities 110 and second cavities 120.

[0033] The grouting hole 130 is used to pour the grouting material 600 into the second cavity 120 of the sleeve 100. The grouting hole 130 is arranged in the middle position of the upper side of the sleeve 100 and is connected to the second cavity 120. This structure can effectively pour the grouting material 600 into the second cavity 120 of the sleeve 100 through the grouting hole 130.

[0034] The one-way sleeve 200 can seal the grouting material 600 poured into the second cavity 120 of the sleeve. The one-way sleeve 200 is sealed on the end of the second cavity 120 of the sleeve 100. The one-way sleeve 200 can seal the grouting material 600 poured into the second cavity 120.

[0035] The grouting plug 300 can press the grouting material 600 tightly between the second steel bar 500 inserted into the second cavity 120 and the sleeve 100 and ensure the density of the grouting material 600 . The grouting plug 300 is disposed in the grouting hole 130 .

[0036] As a preferred embodiment, a first internal thread 111 is provided on the inner circumferential surface of the first cavity 110, and a first external thread 410 matching the first internal thread 111 is provided at the end of the first steel bar 400 inserted therein, and is fixed to the second steel bar 400 inserted therein by a threaded connection.

[0037] As a preferred embodiment, the one-way sleeve 200 includes a covering ring 210 and a covering soft pad. The covering ring 210 covers the end of the second cavity 120 of the sleeve. The inner diameter 211 of the covering ring 210 is the same as the outer diameter of the second steel bar 500 inserted into the second cavity 120. In this way, the second steel bar 500 can be more conveniently inserted into the second cavity 120 of the sleeve 100.

[0038] As a preferred embodiment, the soft covering pad is a grouting material 600 that is poured into the second cavity 120 of the sleeve 100 through the grouting hole, and its edge can be pressed against the inner surface of the covering ring 210 and can be opened when the second steel bar 500 inserted into the second cavity 120 is inserted, and the upper end of the soft covering pad is connected to the covering ring 210.

[0039] As a preferred embodiment, an overflow port 310 is provided in the middle portion of the grouting plug 300 along its axial direction so that excess grouting material can flow out from the inside when the second steel bar 500 is inserted into the second cavity 120 of the sleeve 100. A valve 320 is provided on the grouting plug 300 and at the outlet of the overflow port 310. When the valve 320 is opened, the grouting material can flow out from the overflow port 310. When the valve 320 is closed, the grouting material can no longer flow out from the overflow port 310.

[0040] As a preferred embodiment, an external thread matching the internal thread arranged on the inner surface of the grouting hole is provided on the outer peripheral surface of the grouting plug 300, and the grouting plug 300 is connected to the grouting hole 130 by a threaded connection, so that the grouting plug can be twisted to compact the grouting material.

[0041] Example 2

[0042] This embodiment provides a construction method of a semi-grouting sleeve with a grouting structure as described in Embodiment 1, comprising the following steps:

[0043] The first step is to make a semi-grouting sleeve and cover the end of the second cavity of the sleeve with a one-way sleeve;

[0044] Step 2: During the manufacturing process of the prefabricated component, the semi-grouting sleeve is buried in the prefabricated component;

[0045] Step 3: After the prefabricated component is transported to the construction site, grouting material is poured into the second cavity of the sleeve from the grouting hole until the grouting material fills the second cavity of the sleeve;

[0046] Step 4: hoisting the prefabricated component, connecting and fixing the first steel bar to be butted in the first cavity by threaded connection, and then inserting the second steel bar into the second cavity of the sleeve through the one-way sleeve. During the insertion of the second steel bar into the second cavity, the excess grouting material will flow out through the overflow port of the grouting plug, and the valve is in the open state at this time;

[0047] Step 5: After the second steel bar is inserted into the second cavity, the construction personnel close the valve and prevent the grouting material from flowing out through the overflow port;

[0048] Step 6: The construction personnel twist the grouting plug to move the grouting plug downward along the axis of the grouting hole as a whole, so that it is pressed inward to the bottom of the grouting hole, thereby tightly compacting the grouting material between the second steel bar and the sleeve inserted in the second cavity;

[0049] Step 7: Remove the support after the curing time.

[0050] The present embodiment provides a semi-grouting sleeve with a grouting structure and a construction method thereof. The semi-grouting sleeve has a reasonable overall design, a simple structure, and is easy to construct. The above structure can not only achieve the connection between the first steel bar and the second steel bar, but also ensure that the grouting material is more densely filled between the second steel bar and the sleeve, and the overall quality can be effectively guaranteed, which brings great convenience to the connection work between the first steel bar and the second steel bar of the prefabricated building.

[0051] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A semi-grouting sleeve with a grouting structure, characterized in that: include A sleeve (100) capable of docking a first steel bar (400) and a second steel bar (500) of a prefabricated component, wherein the sleeve (100) is buried in the prefabricated component, and a partition (700) perpendicular to the axis of the sleeve (100) is provided in the middle of the inner cavity of the sleeve (100), wherein the partition (700) divides the inner cavity of the sleeve (100) into two independent first cavities (110) and second cavities (120); a grouting hole (130) for injecting grouting material into the second cavity of the sleeve, wherein the grouting hole (130) is arranged at a middle position on the upper side of the sleeve (100) and is connected to the second cavity (120); A one-way sleeve (200) capable of sealing the grouting material poured into the second cavity (120) of the sleeve inside the one-way sleeve (200), wherein the one-way sleeve (200) is sealed on the end of the second cavity (120) of the sleeve (100); A grouting plug (300) capable of tightly pressing grouting material between a second steel bar (500) inserted into a second cavity (400) and a sleeve (100) and ensuring the density of the grouting material, wherein the grouting plug (300) is arranged in a grouting hole (130).

2. The semi-grouting sleeve with grouting structure according to claim 1, characterized in that: A first internal thread (111) is provided on the inner circumferential surface of the first cavity (110), and a first external thread (410) matching the first internal thread (111) is provided at the end of the first steel bar (400) inserted therein, and is fixed to the first steel bar (400) inserted therein by means of a threaded connection.

3. The semi-grouting sleeve with grouting structure according to claim 1, characterized in that: The one-way envelope (200) comprises A covering ring (210), the covering ring (210) covers the end of the second cavity (120) of the sleeve, and the inner diameter (211) of the covering ring (210) is the same as the outer diameter of the steel bar (500) inserted into the second cavity (120); After a grouting material (600) is poured into the second cavity (120) of the sleeve (100) through the grouting hole (130), its edge can be pressed against the inner surface of the sealing ring and the second steel bar (500) inserted into the second cavity (120) can be inserted to open the soft sealing pad, and the upper end of the soft sealing pad is connected to the sealing ring.

4. The semi-grouting sleeve with grouting structure according to claim 1, characterized in that: An overflow port (310) is provided in the middle of the grouting plug (300) along its axial direction, which allows excess grouting material to flow out from the inside when the second steel bar (500) is inserted into the second cavity (120) of the sleeve (100).

5. The semi-grouting sleeve with grouting structure according to claim 4, characterized in that: A valve (320) is provided on the grouting plug (300) and at the discharge port of the overflow port (310).

6. The semi-grouting sleeve with grouting structure according to claim 5, characterized in that: An external thread matching the internal thread arranged on the inner surface of the grouting hole is arranged on the outer peripheral surface of the grouting plug (300).

7. A construction method of a semi-grouting sleeve with a grouting structure, the construction method is completed based on the semi-grouting sleeve with a grouting structure according to any one of claims 1 to 6, characterized in that: The steps include: The first step is to make a semi-grouting sleeve and cover the end of the second cavity of the sleeve with a one-way sleeve; Step 2: During the manufacturing process of the prefabricated component, the semi-grouting sleeve is buried in the prefabricated component; Step 3: After the prefabricated component is transported to the construction site, grouting material is poured into the second cavity of the sleeve from the grouting hole until the grouting material fills the second cavity of the sleeve; Step 4: hoisting the prefabricated component, connecting and fixing the first steel bar to be butted in the first cavity by threaded connection, and then inserting the second steel bar into the second cavity of the sleeve through the one-way sleeve. During the insertion of the second steel bar into the second cavity, the excess grouting material will flow out through the overflow port of the grouting plug, and the valve is in the open state at this time; Step 5: After the second steel bar is inserted into the second cavity, the construction personnel close the valve and prevent the grouting material from flowing out through the overflow port; Step 6: The construction personnel twist the grouting plug to move the grouting plug downward along the axis of the grouting hole as a whole, so that it is pressed inward to the bottom of the grouting hole, thereby tightly compacting the grouting material between the second steel bar and the sleeve inserted in the second cavity; Step 7: Remove the support after the curing time.

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