Full grouting sleeve with grouting structure and construction method thereof

Abstract

In order to solve the problem that an existing grouting sleeve cannot ensure that a grouting material is compactly filled between a steel bar and the sleeve, the full grouting sleeve with the grouting structure comprises a sleeve body, a pair of one-way sealing sleeves and a grouting plug, and the sleeve body is embedded in a prefabricated part; the grouting hole is formed in the middle of the upper side of the sleeve and communicates with an inner cavity of the sleeve. The pair of one-way sealing sleeves are symmetrically sealed and covered at two ends of the sleeve; and the grouting plug is arranged in the grouting hole. By the adoption of the structure, connection between the reinforcing steel bars can be achieved, it can be guaranteed that grouting materials are compactly filled between the reinforcing steel bars and the sleeve, the overall quality can be effectively guaranteed, and great convenience is brought to reinforcing steel bar connection work of a prefabricated building.

Description

Technical Field

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

[0002] The full grouting sleeve connection method refers to the process of inserting the steel bar joints between prefabricated components into the two ends of the full grouting sleeve respectively, and then filling the gap between the sleeve and the steel bar with special grouting material. When the grouting material solidifies, the force-transmitting steel bar connection is realized. The full 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 insert the corresponding steel bars from both ends of the sleeve into its interior, and then inject grouting material into the gap between the steel bars and the sleeve through the grouting holes. After the grouting material solidifies between the steel bars and the sleeve, it forms a solid that wraps the steel bars 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 densely filled between the steel bars 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 densely filled between the steel bars and the sleeve and to guarantee the construction quality, the present invention provides a full-grouting sleeve with a grouting structure and a construction method thereof.

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

[0006] A full grouting sleeve with a grouting structure, characterized in that it includes

[0007] a sleeve for inserting the reinforcement of the prefabricated component into the sleeve to complete the connection work, wherein the sleeve is embedded in the prefabricated component;

[0008] a grouting hole for injecting grouting material into the sleeve, wherein the grouting hole is provided at a middle position on the upper side of the sleeve and is in communication with the inner cavity of the sleeve;

[0009] A pair of one-way envelopes capable of sealing the grouting material poured into the sleeve, wherein the pair of one-way envelopes are symmetrically covered at both ends of the sleeve;

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

[0011] Furthermore, the one-way envelope includes

[0012] a covering ring, the covering ring covering the end of the sleeve, the inner diameter of the covering ring being the same as the outer diameter of the steel bar;

[0013] A soft sealing pad can be opened when a grouting material is poured into the sleeve through a grouting hole and its edge can be pressed against the inner surface of the sealing ring and when a steel bar is inserted, the upper end of the soft sealing pad is connected to the sealing ring.

[0014] 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 steel bar is inserted into the sleeve.

[0015] Furthermore, a valve is provided on the grouting plug at the discharge port of the overflow port.

[0016] Furthermore, an external thread is provided on the outer peripheral surface of the grouting plug, which matches the internal thread provided on the inner surface of the grouting hole.

[0017] The present invention also provides a construction method of a full grouting sleeve with a grouting structure, which is characterized by comprising the following steps:

[0018] Step 1: Make a fully grouting sleeve and cover both ends of the sleeve with one-way seals;

[0019] Step 2: During the prefabricated component manufacturing process, the full grouting sleeve is embedded in the prefabricated component;

[0020] Step 3: After the prefabricated components are transported to the construction site, grouting material is poured into the sleeve from the grouting hole until the grouting material fills the inner cavity of the sleeve;

[0021] Step 4: Prefabricated components are hoisted and the steel bars are inserted into the sleeve through the one-way sleeve. During the insertion of the steel bars, excess grouting material will flow out through the overflow port of the grouting plug. At this time, the valve is in the open state.

[0022] Step 5: After the steel bars are inserted, the construction workers close the valve and prevent the grouting material from flowing out through the overflow port;

[0023] Step 6: The construction workers twist the grouting plug to move the entire grouting plug downward along the axis of the grouting hole, pressing it inward to the bottom of the grouting hole, thereby tightly compacting the grouting material between the steel bar and the sleeve;

[0024] Step 7: Remove the support after the curing time.

[0025] The present invention provides a full-grouting sleeve with a grouting structure and a construction method thereof. The full-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 steel bars, but also ensure that the grouting material is more densely filled between the steel bars and the sleeve, and the overall quality can be effectively guaranteed, which brings great convenience to the steel bar connection work of prefabricated buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a full grouting sleeve with a grouting structure of the present invention before the steel bars are inserted into the butt joint.

[0027] Figure 2 This is a structural schematic diagram of a full grouting sleeve with a grouting structure of the present invention after the steel bars need to be inserted for docking. DETAILED DESCRIPTION

[0028] The present invention will be further described 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 greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0029] Example 1

[0030] refer to Figures 1 to 2 In this embodiment, a full grouting sleeve with a grouting structure includes a sleeve 100, a pair of one-way sleeves 200 and a grouting plug 300.

[0031] The sleeve 100 is used to insert the steel bar 400 of the prefabricated component into its interior to complete the connection work. The sleeve 100 is buried in the prefabricated component. The grouting hole 110 is used to pour the grouting material 500 into the sleeve 100 through it. The grouting hole 110 is set in the middle position of the upper side of the sleeve 100 and is connected to the inner cavity of the sleeve 100.

[0032] A pair of one-way sleeves 200 can seal the grouting material 500 poured into the sleeve 100 inside it, and a pair of single-way sleeves 200 are symmetrically covered at both ends of the sleeve 100. The grouting plug 300 can press the grouting material 500 tightly between the steel bar 400 and the sleeve 100 and ensure the density of the grouting material 500. The grouting plug 300 is set in the grouting hole 110.

[0033] 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 sleeve 100. The inner diameter 211 of the covering ring 210 is the same as the outer diameter of the steel bar 400, which facilitates the insertion of the steel bar 400 into the interior of the sleeve 100 through the covering ring.

[0034] After a grouting material 500 is poured into the sleeve 100 through the grouting hole 110, its edge can be pressed against the inner surface of the cover ring 210 and the cover soft pad can be opened when the steel bar 400 is inserted. The upper end of the cover soft pad is connected to the cover ring 210.

[0035] As a preferred embodiment, an overflow port 310 is provided in the middle of the grouting plug 300 along its axial direction, which can allow excess grouting material 500 to flow out from the inside when the steel bar 400 is inserted into the sleeve 100, and a valve 320 is provided on the grouting plug 300 and at the outlet of the overflow port 310.

[0036] As a preferred embodiment, an external thread is provided on the outer peripheral surface of the grouting plug 300, which cooperates with the internal thread provided on the inner surface of the grouting hole 110. Through the cooperation between the internal thread and the external thread, when the grouting plug is screwed, it can be pressed inward to the bottom of the grouting hole, thereby tightly compacting the grouting material between the steel bar 400 and the sleeve 100.

[0037] Example 2

[0038] This embodiment provides a construction method of a full grouting sleeve with a grouting structure as described in Embodiment 1, comprising the following steps:

[0039] Step 1: Make a fully grouting sleeve and cover both ends of the sleeve with one-way seals;

[0040] Step 2: During the prefabricated component manufacturing process, the full grouting sleeve is embedded in the prefabricated component;

[0041] Step 3: After the prefabricated components are transported to the construction site, grouting material is poured into the sleeve from the grouting hole until the grouting material fills the inner cavity of the sleeve;

[0042] Step 4: Prefabricated components are hoisted and the steel bars are inserted into the sleeve through the one-way sleeve. During the insertion of the steel bars, excess grouting material will flow out through the overflow port of the grouting plug. At this time, the valve is in the open state.

[0043] Step 5: After the steel bars are inserted, the construction workers close the valve and prevent the grouting material from flowing out through the overflow port;

[0044] Step 6: The construction workers twist the grouting plug to move the entire grouting plug downward along the axis of the grouting hole, pressing it inward to the bottom of the grouting hole, thereby tightly compacting the grouting material between the steel bar and the sleeve;

[0045] Step 7: Remove the support after the curing time.

[0046] The present embodiment provides a full-grouting sleeve with a grouting structure and a construction method thereof. The full-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 steel bars, but also ensure that the grouting material is more densely filled between the steel bars and the sleeve, and the overall quality can be effectively guaranteed, which brings great convenience to the steel bar connection work of prefabricated buildings.

[0047] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in this field based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A full grouting sleeve with a grouting structure, characterized in that: include A sleeve (100) for inserting the steel bars (400) of the prefabricated component into the prefabricated component to complete the connection work, wherein the sleeve (100) is buried in the prefabricated component; a grouting hole (110) for injecting grouting material (500) into the sleeve, wherein the grouting hole (110) is arranged at a middle position on the upper side of the sleeve (100) and is communicated with the inner cavity of the sleeve (100); A pair of one-way sleeves (200) capable of sealing the grouting material (500) poured into the sleeve (100) inside the sleeve, wherein the pair of one-way sleeves (200) are symmetrically sealed at both ends of the sleeve (100); A grouting plug (300) capable of tightly pressing a grouting material (500) between a steel bar (400) and a sleeve (100) and ensuring the density of the grouting material (500), wherein the grouting plug (300) is arranged in a grouting hole (110).

2. The full 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 sleeve (100), and the inner diameter (211) of the covering ring (210) is the same as the outer diameter of the steel bar (400); After a grouting material (500) is poured into the sleeve (100) through the grouting hole (110), its edge can be pressed against the inner surface of the cover ring and the cover soft pad can be opened when the steel bar (400) is inserted, and the upper end of the cover soft pad is connected to the cover ring (210).

3. The full 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, and is capable of allowing excess grouting material to flow out from the inside when the steel bar is inserted into the sleeve.

4. The full grouting sleeve with grouting structure according to claim 3 is characterized in that: A valve (320) is provided on the grouting plug (300) and at the discharge port of the overflow port (310).

5. The full grouting sleeve with grouting structure according to claim 4, 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).

6. A construction method of a full grouting sleeve with a grouting structure, the construction method is completed based on the full grouting sleeve with a grouting structure according to any one of claims 1 to 5, characterized in that: The steps include: Step 1: Make a fully grouted sleeve and cover the two ends of the sleeve with one-way sleeves; Step 2: During the manufacturing process of the prefabricated component, the full grouting sleeve is buried in the prefabricated component; The third step: after the prefabricated components are transported to the construction site, the grouting material is poured into the sleeve from the grouting hole until the grouting material fills the inner cavity of the sleeve; Step 4: Prefabricated components are hoisted and the steel bars are inserted into the sleeve through the one-way sleeve. During the insertion of the steel bars, the excess grouting material will flow out through the overflow port of the grouting plug. At this time, the valve is in the open state; Step 5: After the steel bars are inserted, 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, so that it is pressed inward to the bottom of the grouting hole, thereby tightly compacting the grouting material between the steel bar and the sleeve; Step 7: Remove the support after the curing time.

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