Pre-grouting and post-pressing type full grouting sleeve and construction method thereof

Abstract

In order to solve the problem that related grouting work cannot be carried out in the process of inserting reinforcing steel bars into a sleeve in the prior art, the invention provides a pre-grouting and post-pressing type full grouting sleeve which comprises a sleeve body, a slurry bin A, a slurry bin B, a pair of one-way sealing sleeves, a first grouting structure and a second grouting structure. By the adoption of the structure, related grouting work can be carried out in the process of inserting the first reinforcing steel bar and the second reinforcing steel bar into the sleeve, the whole construction process saves time and labor, in addition, it can be ensured that mixed slurry composed of the grouting material A and the grouting material B is compactly filled between the first reinforcing steel bar, the second reinforcing steel bar and the sleeve, and the grouting efficiency is improved. And 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 the fabricated 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 pre-grouting and post-pressing full grouting sleeve and a construction method thereof. Background Art

[0002] The full grouting sleeve connection method refers to the method in which the steel bar joints between prefabricated components are respectively inserted into the two ends of the full grouting sleeve, and the special grouting material is filled in the gap between the sleeve and the steel bar. 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 the interior thereof, 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 realize the connection between the steel bars, the entire construction process is relatively cumbersome, and the steel bar insertion and grouting work can only be performed separately, and it is impossible to perform related grouting work during the process of inserting the steel bars into the sleeve. The entire construction process is time-consuming and labor-intensive.

[0004] In addition, the existing grouting method 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

[0005] In order to enable relevant grouting work to be carried out during the process of inserting steel bars into the sleeve, so that the entire construction process is time-saving and labor-saving, the present invention provides a pre-grouting and post-pressing full-grouting sleeve and a construction method thereof.

[0006] The technical solution of a pre-grouting and post-pressure full grouting sleeve of the present invention is as follows:

[0007] A pre-grouting and post-pressure full grouting sleeve, characterized in that it comprises

[0008] A sleeve for inserting the reinforcement of the prefabricated component into the prefabricated component to complete the connection work, wherein the sleeve is buried in the prefabricated component;

[0009] A slurry bin for containing grouting material A, wherein the slurry bin is arranged on one side of the upper wall of the sleeve and is communicated with the inner cavity of the sleeve;

[0010] A B slurry bin for containing grouting material B, wherein the B slurry bin is arranged on the other side of the upper wall of the sleeve and is communicated with the inner cavity of the sleeve;

[0011] A pair of one-way envelopes capable of sealing the mixed slurry composed of grouting material A and grouting material B poured into the sleeve inside the sleeve, and the pair of one-way envelopes are symmetrically covered at both ends of the sleeve;

[0012] a first grouting structure for pressing the grouting material A in the A grout bin into the inner cavity of the sleeve when the first steel bar to be butted is inserted from the one-way sleeve arranged on one side of the sleeve into the inner cavity of the sleeve, wherein the first grouting structure is arranged on the A grout bin;

[0013] A second grouting structure is provided on the B slurry bin, which is used to press the grouting material B in the B slurry bin into the inner cavity of the sleeve when the second steel bar to be butt-jointed is inserted into the inner cavity of the sleeve from a one-way sleeve arranged on the other side of the sleeve.

[0014] Furthermore, the first grouting structure includes

[0015] A first grouting plug, which is installed at the upper end of the A slurry bin;

[0016] A first pressure-activated one-way valve that can be opened only when the pressure in the A slurry bin is greater than a set value, wherein the first pressure-activated one-way valve is arranged at the lower end of the A slurry bin;

[0017] A first pressure rod which is L-shaped as a whole and can slide along a first slide rail arranged on the inner wall of the sleeve, and one side of the first pressure rod is slidably arranged on the first slide rail;

[0018] A first connecting steel rope, one end of which is fixed on the first grouting plug, and the other end of which passes through the first pressure-generating one-way valve and is connected to one end of the first pressure rod.

[0019] Furthermore, the second grouting structure includes

[0020] A second grouting plug, which is installed at the upper end of the B slurry bin;

[0021] A second pressure-activated one-way valve that can be opened only when the pressure in the B slurry bin is greater than a set value, wherein the second pressure-activated one-way valve is arranged at the lower end of the B slurry bin;

[0022] A second pressure rod which is L-shaped as a whole and can slide along a second slide rail arranged on the inner wall of the sleeve, and one side of the second pressure rod is slidably arranged on the second slide rail;

[0023] A second connecting steel rope, one end of which is fixed on the second grouting plug, and the other end of which passes through the second pressure-release one-way valve and is connected to one end of the second pressure rod.

[0024] Furthermore, the one-way envelope includes

[0025] A covering ring, the covering ring covers the end of the sleeve, and the inner diameter of the covering ring is the same as the outer diameter of the first steel bar and the second steel bar;

[0026] After a grouting material is poured into the sleeve through a grouting hole, its edge can be pressed on the inner surface of the cover ring and the cover soft pad can be opened when the first steel bar and the second steel bar are inserted. The upper end of the cover soft pad is connected to the cover ring.

[0027] The present invention also provides a construction method of a pre-grouting and post-pressure full grouting sleeve, which is characterized by comprising the following steps:

[0028] The first step is to make a full grouting sleeve, cover both ends of the sleeve with a one-way cover, install a first grouting structure on the A slurry bin, and then pour grouting material A into the A slurry bin. After the grouting material A is poured, the first grouting plug is pressed at the upper end of the A slurry bin;

[0029] The second step: then installing a second grouting structure on the B slurry bin, then pouring grouting material B into the B slurry bin, and after the pouring of grouting material B is completed, pressing the second grouting plug at the upper end of the B slurry bin;

[0030] Step 3: During the manufacturing process of the prefabricated component, the full grouting sleeve is embedded in the prefabricated component;

[0031] Step 4: The components are transported to the site and hoisted, and the first and second steel bars are inserted into the sleeve. During the insertion process, the grouting material A in the A slurry bin and the grouting material B in the B slurry bin will automatically be poured into the space between the first and second steel bars and the sleeve. After a period of time, a solid is formed to wrap the first and second steel bars, thereby realizing the connection between the first and second steel bars;

[0032] Step 5: Remove the support after the curing time.

[0033] The present invention discloses a pre-filled and post-pressurized full-grouting sleeve 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 realize related grouting work in the process of inserting the first steel bar and the second steel bar into the sleeve, and the whole construction process is time-saving and labor-saving. In addition, it can ensure that the mixed slurry composed of the grouting material A and the grouting material B is relatively densely filled between the first steel bar, the second steel bar and the sleeve, and the overall quality can be effectively guaranteed, which brings great convenience to the connection work of the first steel bar and the second steel bar of the prefabricated building. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of a pre-grouting and post-pressing full grouting sleeve of the present invention before the steel bars to be butted are inserted.

[0035] Figure 2 It is a structural schematic diagram of a pre-grouting and post-pressing full grouting sleeve of the present invention after the steel bars to be butted are inserted. DETAILED DESCRIPTION

[0036] 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.

[0037] Example 1

[0038] refer to Figure 1 to Figure 2 A pre-grouting and post-pressure full-grouting sleeve of this embodiment includes a sleeve 100, an A slurry bin 200, a B slurry bin 300, a pair of one-way envelopes 400, a first grouting structure 500 and a second grouting structure 600.

[0039] The sleeve 100 is used to insert the first steel bar 700 and the second steel bar 00 of the prefabricated component into the interior thereof to complete the connection work, and the sleeve 100 is buried in the prefabricated component.

[0040] The A slurry bin 200 is used to contain grouting material A900, and the A slurry bin 200 is arranged on one side of the upper wall of the sleeve 100, and the A slurry bin 200 is communicated with the inner cavity of the sleeve 100. The B slurry bin 300 is used to contain grouting material B1000, and the B slurry bin 300 is arranged on the other side of the upper wall of the sleeve 100, and the B slurry bin 300 is communicated with the inner cavity of the sleeve 100.

[0041] A pair of one-way envelopes 400 can seal the mixed slurry composed of grouting material A200 and grouting material B300 poured into the sleeve 100 inside it. A pair of single-way envelopes 400 are symmetrically covered at both ends of the sleeve 100. The pair of single-way envelopes 400 are respectively a first single-way envelope 410 and a second single-way envelope 420.

[0042] The first grouting structure 500 is used to press the grouting material A900 in the A slurry bin 200 into the inner cavity of the sleeve 100 when the first steel bar 700 to be connected is inserted into the inner cavity of the sleeve 100 from the first one-way sleeve 410 arranged on one side of the sleeve 100. The first grouting structure 500 is arranged on the A slurry bin 200.

[0043] The second grouting structure 600 is used to press the grouting material B1000 in the B slurry bin 300 into the inner cavity of the sleeve 100 when the second steel bar 800 to be connected is inserted from the second one-way sleeve 420 set in the sleeve 100 into the inner cavity of the sleeve 100. The second grouting structure 600 is set on the B slurry bin 300.

[0044] As a preferred embodiment, the first grouting structure 500 includes a first grouting plug 510, a first pressure-generated one-way valve 520, a first pressure rod 530 and a first connecting steel rope 540, and the first grouting plug 510 is pressed at the upper end of the A slurry bin 200.

[0045] The first pressure-activated one-way valve 520 can only be opened when the pressure in the A slurry bin 200 is greater than a set value. The first pressure-activated one-way valve 520 is arranged at the lower end of the A slurry bin 200. The first pressure rod 530 is L-shaped as a whole and can slide along the first slide rail arranged on the inner wall of the sleeve. One side of the first pressure rod 530 is slidably arranged on the first slide rail.

[0046] One end of the first connecting steel rope 540 is fixed on the first grouting plug 510 , and the other end of the first connecting steel rope 540 passes through the first pressure-release one-way valve 520 and is connected to one end of the first pressure rod 530 .

[0047] As a preferred embodiment, the second grouting structure 600 includes a second grouting plug 610 , a second pressure-generated one-way valve 620 , a second pressure rod 630 and a second connecting steel rope 640 , and the second grouting plug 610 is pressed at the upper end of the B slurry bin 300 .

[0048] The second pressure-activated one-way valve 620 can only be opened when the pressure in the B slurry bin 300 is greater than a set value. The second pressure-activated one-way valve 620 is arranged at the lower end of the B slurry bin 300. The second pressure rod 630 is L-shaped as a whole and can slide along the second slide rail arranged on the inner wall of the sleeve 100. One side of the second pressure rod 630 is slidably arranged on the second slide rail.

[0049] One end of the second connecting steel rope 640 is fixed on the second grouting plug 610 , and the other end of the second connecting steel rope 640 passes through the second pressure-release one-way valve 620 and is connected to one end of the second pressure rod 630 .

[0050] After the first steel bar 700 and the second steel bar 800 pass through the first single-way envelope 410 and the second single-way envelope 420 sleeves respectively, the first steel bar 700 and the second steel bar 800 touch the first pressure rod 530 and the second pressure rod 630 respectively and push them to move inward. After the first pressure rod 530 and the second pressure rod 630 move, the first grouting plug 510 and the second grouting plug 610 are pulled by the first connecting steel rope 540 and the second connecting steel rope 640 respectively, driving them to move toward the mouth of the A slurry bin 200 and the B slurry bin 300 respectively. At this time, the first pressure-release one-way valve 520 and the second pressure-release one-way valve 620 are subjected to the extrusion pressure of the first grouting plug 510 and the second grouting plug 610, and open after exceeding the set value, so that the grouting material A900 and the grouting material B1000 flow out into the sleeve 100.

[0051] As a preferred embodiment, the first one-way sleeve 410 and the second one-way sleeve 420 both include a sealing ring and a sealing soft pad. The sealing ring seals the end of the sleeve, and the inner diameter of the sealing ring is the same as the outer diameter of the first steel bar and the second steel bar.

[0052] The soft sealing pad is a sealing material which can be pressed against the inner surface of the sealing ring after the grouting material is poured into the sleeve through the grouting hole and can be opened when the first steel bar and the second steel bar are inserted. The upper end of the soft sealing pad is connected to the sealing ring.

[0053] Example 2

[0054] This embodiment provides a construction method of a pre-grouting and post-pressure full grouting sleeve as described in Embodiment 1, characterized in that it comprises the following steps:

[0055] The first step is to make a full grouting sleeve, cover both ends of the sleeve with a one-way cover, install a first grouting structure on the A slurry bin, and then pour grouting material A into the A slurry bin. After the grouting material A is poured, the first grouting plug is pressed at the upper end of the A slurry bin;

[0056] The second step: then installing a second grouting structure on the B slurry bin, then pouring grouting material B into the B slurry bin, and after the pouring of grouting material B is completed, pressing the second grouting plug at the upper end of the B slurry bin;

[0057] Step 3: During the manufacturing process of the prefabricated component, the full grouting sleeve is embedded in the prefabricated component;

[0058] Step 4: The components are transported to the site and hoisted, and the first and second steel bars are inserted into the sleeve. During the insertion process, the grouting material A in the A slurry bin and the grouting material B in the B slurry bin will automatically be poured into the space between the first and second steel bars and the sleeve. After a period of time, a solid is formed to wrap the first and second steel bars, thereby realizing the connection between the first and second steel bars;

[0059] Step 5: Remove the support after the curing time.

[0060] The present embodiment provides a pre-filled and post-pressed full-grouting sleeve 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 realize the relevant grouting work in the process of inserting the first steel bar and the second steel bar into the sleeve, and the entire construction process is time-saving and labor-saving. In addition, it can ensure that the mixed slurry composed of the grouting material A and the grouting material B is relatively densely filled between the first steel bar, the second steel bar and the sleeve, and the overall quality can be effectively guaranteed, which brings great convenience to the connection work of the first steel bar and the second steel bar of the prefabricated building.

[0061] 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 pre-grouting and post-pressure full grouting sleeve, characterized in that: include a sleeve (100) for inserting a first steel bar (700) and a second steel bar (800) of a prefabricated component into the sleeve (100) to complete the connection work, wherein the sleeve (100) is buried in the prefabricated component; an A slurry bin (200) for containing grouting material A (900), wherein the A slurry bin (200) is arranged on one side of the upper wall of the sleeve (100), and the A slurry bin (200) is communicated with the inner cavity of the sleeve (100); a B slurry bin (300) for containing grouting material B (1000), wherein the B slurry bin (300) is arranged on the other side of the upper wall of the sleeve (100), and the B slurry bin (300) is communicated with the inner cavity of the sleeve (100); A pair of one-way envelopes (400) capable of sealing a mixed slurry composed of grouting material A (900) and grouting material B (1000) poured into the sleeve (100) inside the sleeve, wherein the pair of one-way envelopes (400) are symmetrically sealed at both ends of the sleeve (100); a first grouting structure (500) for pressing the grouting material A (900) in the A grouting material bin (200) into the inner cavity of the sleeve (100) when inserting the first steel bar (700) to be butt-jointed from a one-way sleeve arranged on one side of the sleeve into the inner cavity of the sleeve (100), wherein the first grouting structure (500) is arranged on the A grouting material bin (200); A second grouting structure (600) is provided for pressing the grouting material B (1000) in the B slurry bin (300) into the inner cavity of the sleeve (100) when inserting the second steel bar (800) to be butt-jointed from a one-way sleeve arranged on the other side of the sleeve (100) into the inner cavity of the sleeve (100). The second grouting structure (600) is arranged on the B slurry bin (300).

2. The pre-grouting and post-pressure full grouting sleeve according to claim 1, characterized in that: The first grouting structure (500) comprises a first grouting plug (510), wherein the first grouting plug (510) is pressed at the upper end of the A slurry bin (200); a first pressure-activated one-way valve (520) that can be opened only when the pressure in the A slurry bin (200) is greater than a set value, wherein the first pressure-activated one-way valve (520) is arranged at the lower end of the A slurry bin (200); A first pressure rod (530) which is L-shaped as a whole and can slide along a first slide rail arranged on the inner wall of the sleeve (100), one side of the first pressure rod (530) being slidably arranged on the first slide rail; A first connecting steel rope (540), one end of which is fixed to the first grouting plug (510), and the other end of which passes through the first pressure-release one-way valve (520) and is connected to one end of the first pressure rod (530).

3. The pre-grouting and post-pressure full grouting sleeve according to claim 1, characterized in that: The second grouting structure (600) comprises a second grouting plug (610), the second grouting plug (610) being pressed at the upper end of the B slurry bin (300); a second pressure-activated one-way valve (620) that can be opened only when the pressure in the B slurry bin (300) is greater than a set value, wherein the second pressure-activated one-way valve (620) is arranged at the lower end of the B slurry bin (300); A second pressure rod (630) which is L-shaped as a whole and can slide along a second slide rail arranged on the inner wall of the sleeve (100), one side of the second pressure rod (630) being slidably arranged on the second slide rail; A second connecting steel rope (640), one end of which is fixed to the second grouting plug (610), and the other end of which passes through the second pressure-release one-way valve (620) and is connected to one end of the second pressure rod (630).

4. The pre-grouting and post-pressure full grouting sleeve according to claim 1, characterized in that: The one-way envelope (400) comprises A covering ring, the covering ring covers the end of the sleeve, and the inner diameter of the covering ring is the same as the outer diameter of the first steel bar and the second steel bar; After a grouting material is poured into the sleeve through a grouting hole, its edge can be pressed on the inner surface of the cover ring and the cover soft pad can be opened when the first steel bar and the second steel bar are inserted. The upper end of the cover soft pad is connected to the cover ring.

5. A construction method of a pre-filled and post-pressed full grouting sleeve, the construction method is based on the pre-filled and post-pressed full grouting sleeve according to any one of claims 1 to 4, characterized in that The steps include: The first step is to make a full grouting sleeve, cover both ends of the sleeve with a one-way cover, install a first grouting structure on the A slurry bin, and then pour grouting material A into the A slurry bin. After the grouting material A is poured, the first grouting plug is pressed at the upper end of the A slurry bin; The second step: then installing a second grouting structure on the B slurry bin, then pouring grouting material B into the B slurry bin, and after the pouring of grouting material B is completed, pressing the second grouting plug at the upper end of the B slurry bin; Step 3: During the manufacturing process of the prefabricated component, the full grouting sleeve is embedded in the prefabricated component; Step 4: The components are transported to the site and hoisted, and the first and second steel bars are inserted into the sleeve. During the insertion process, the grouting material A in the A slurry bin and the grouting material B in the B slurry bin will automatically be poured into the space between the first and second steel bars and the sleeve. After a period of time, a solid is formed to wrap the first and second steel bars, thereby realizing the connection between the first and second steel bars; Step 5: Remove the support after the curing time.

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