Auxiliary device for filling flue hole and use method thereof

Abstract

An auxiliary device for patching a flue hole and a method for using the same, the auxiliary device comprising: a matching right-angle fixing piece of a snap-fit ​​tooth, a glue plate and a bent steel bar; the right-angle fixing piece of a snap-fit ​​tooth is composed of a screw, a right-angle flat iron, a nut and a hinge; the screw is divided into a No. 1 screw and a No. 2 screw; the right-angle flat iron is divided into a No. 1 flat iron, a No. 2 flat iron and a No. 3 flat iron, nuts are welded on both outer sides of the No. 1 flat iron, the No. 2 flat iron is hinged to the end of the No. 1 screw through a hinge, and the No. 3 flat iron is hinged to the end of the No. 2 screw through a hinge; the No. 1 screw and the No. 2 screw are cross-lapped, and a No. 1 flat iron is arranged at an intersection angle between them; the glue plate is arranged at the top of the outer wall of the flue; the right-angle fixing piece of a snap-fit ​​tooth is arranged below the glue plate and is horizontally fixed on the outer wall of the flue; the bent end of the bent steel bar is inserted into the gap between the glue plate and the right-angle fixing piece of a snap-fit ​​tooth. The invention is simple to manufacture, and the template is easy to install and disassemble, and can be used in a turnover manner, reducing the installation cost.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering construction, and specifically relates to an auxiliary device for filling a flue hole and a use method thereof, which is used for installation of secondary casting templates for flues in construction projects. Background Art

[0002] At present, the method of patching the flue hole is generally to use plywood to match the mold and install it. First, clean, roughen and moisten the reserved pipe hole; then match the mold according to the size of the reserved hole around the flue, use an 8# drill pistol drill to drill holes on both sides of the 50×80 wooden square in the center of the template, use 14# iron wire to pass through one end of the drilled hole, and then pass through from the other end to form a U shape, and then insert the wooden square from the U shape to fit the bottom of the plywood, and the bottom template is assembled. A short wooden square of suitable size of 50×80 is used on the upper part of the board to form a 45° angle with the board surface, one end is fixed on the board surface, and the other end is fixed on the flue, and then the assembled template is close to the bottom of the board, and the U-shaped 14# iron wire is passed through the reserved hole to the top of the short wooden square formed at 45° on the board surface, and then the upper mouth of the U-shaped 14# iron wire is closed, and tightened with iron pliers, and the bottom template is considered to be reinforced.

[0003] The above method is more complicated to assemble, and the template is unevenly stressed, because after the template is installed, the 14# iron wire needs to be tightened to reinforce the template. The tightening force will cause the template side against one end of the flue pipe to move up and down, so that the template in contact with the original concrete at the other end will also move, so the joint is prone to misalignment, and it is also more complicated to remove the template after the concrete is poured. The 14# iron wire needs to be cut off, and then the template needs to be removed by using pliers to pull the wire out of the concrete, which is more laborious and time-consuming. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides an auxiliary device for patching a flue hole and a method for using the same.

[0005] The present invention is achieved through the following technical solutions:

[0006] An auxiliary device for patching flue holes, comprising: a matching bite-tooth right-angle fixing piece, a glue plate and a bent steel bar; the bite-tooth right-angle fixing piece is composed of a screw, a right-angle flat iron, a nut and a hinge;

[0007] The screw rod is divided into a No. 1 screw rod and a No. 2 screw rod; the right-angle flat iron is divided into a No. 1 flat iron, a No. 2 flat iron and a No. 3 flat iron, both outer sides of the No. 1 flat iron are welded with nuts, the No. 2 flat iron is hinged to the end of the No. 1 screw rod through a hinge, and the No. 3 flat iron is hinged to the end of the No. 2 screw rod through a hinge; the other ends of the No. 1 screw rod and the No. 2 screw rod are welded with a handle rod;

[0008] The first screw rod and the second screw rod are cross-jointed, and the first flat iron is arranged at an intersection angle between them; the first screw rod and the second screw rod are connected to the first flat iron through nuts;

[0009] The plywood is an L-shaped structure and is arranged on the top of the outer wall of the flue; the bite-tooth right-angle fixing piece is arranged below the plywood and is horizontally fixed on the outer wall of the flue; the bent end of the bent steel bar is inserted into the gap between the plywood and the bite-tooth right-angle fixing piece, and the other end is fixed on the outer wall of the flue.

[0010] Preferably, the gap between the plywood and the right-angle fixing piece of the bite tooth is greater than or equal to 10 mm.

[0011] Preferably, the thickness of the plywood is 15-16 mm.

[0012] Preferably, a rubber pad is provided at the edge of the plywood.

[0013] Preferably, the bent steel bar is a φ10 steel bar with a total length of 900 mm, a bent end length of 150 mm, and a bending angle of 45-60°.

[0014] Preferably, the number of bent steel bars is not less than two.

[0015] The present invention also discloses a method for using an auxiliary device for patching a flue hole, and the method is as follows:

[0016] 1) Clean, roughen and moisten the reserved pipe opening;

[0017] 2) Install the right-angle fixing piece of the occlusal teeth, and leave space between the upper opening of the right-angle fixing piece of the occlusal teeth and the top plate;

[0018] 3) The plywood is placed in the corresponding position above the right-angle fixing of the bite teeth through the reserved space;

[0019] 4) Insert the bent end of the bent steel bar obliquely into the gap between the glue plate and the right-angle fixing piece of the bite tooth;

[0020] 5) Adjust the bent steel bar to make it perpendicular to the plywood, and fix the other end of the bent steel bar on the outer wall of the flue;

[0021] 6) Use micro-expansive concrete with a strength one grade higher than that of the floor slab to fill the flue hole until it reaches 1 / 2 of the floor slab thickness;

[0022] 7) After the initial setting of the micro-expansion concrete, apply a layer of water to prevent the concrete from leaking;

[0023] 8) Continue pouring micro-expansion concrete until it is 10mm lower than the slab surface;

[0024] 9) After the concrete strength reaches the design strength, remove the bent steel bars, bite-tooth right-angle fixings and plywood to complete the flue hole filling process.

[0025] Preferably, a layer of polymer waterproof coating is applied when pouring to 1 / 2 of the floor slab thickness to meet the waterproofing requirements for subsequent hole filling.

[0026] Preferably, the reserved space between the upper opening of the right-angle fixing piece of the occlusal teeth and the top plate is 26-28 mm.

[0027] The device of the present invention is simple to manufacture and convenient to obtain materials; the square characteristics of the flue are utilized to combine the reinforcement materials, and the template is easy to install and disassemble; the reinforcement of the flue hole filling template has better force, the casting and molding effect is significant, there is no misalignment at the joint, and there is no leakage at the edge of the template; the present invention can be used in a turnover manner, does not cause material waste, and reduces installation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a usage state diagram of the present invention;

[0029] Figure 2 A side view of the present invention when in use;

[0030] Figure 3 It is a schematic diagram of the structure of the right-angle fixing member of the occlusal teeth;

[0031] Figure 4 This is the installation location diagram of the plywood;

[0032] In the figure, 1-screw, 2-right angle flat iron, 3-nut, 4-hinge, 5-plywood, 6-bent steel bar, 7-floor slab, 8-flue. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are now described with reference to the accompanying drawings. It will be appreciated by those skilled in the art that the following embodiments are only used to illustrate the present invention and should not be considered as limiting the scope of the present invention. If no specific technology, connection relationship or condition is indicated in the embodiments, the technology, connection relationship, condition described in the literature in this field or the product specification is used. If the manufacturer of the materials, instruments or equipment used is not indicated, they are all conventional products that can be purchased.

[0034] The structure of the present invention is described below in conjunction with the accompanying drawings.

[0035] Combination Figure 1-4 As shown, an auxiliary device for filling a flue hole comprises: a matching right-angle fixing member with a bite tooth, a glue plate 5 and a bent steel bar 6; the right-angle fixing member with a bite tooth is composed of a screw 1, a right-angle flat iron 2, a nut 3 and a hinge 4;

[0036] The screw rod 1 is divided into a No. 1 screw rod 11 and a No. 2 screw rod 12; the right-angle flat iron 2 is divided into a No. 1 flat iron 21, a No. 2 flat iron 22 and a No. 3 flat iron 23, both outer sides of the No. 1 flat iron 21 are welded with nuts 3, the No. 2 flat iron 22 is hinged to the end of the No. 1 screw rod 11 through a hinge 4, and the No. 3 flat iron 23 is hinged to the end of the No. 2 screw rod 12 through a hinge 4; the other ends of the No. 1 screw rod 11 and the No. 2 screw rod 12 are welded with a grip rod 13; the top surfaces of the No. 1 flat iron 21, the No. 2 flat iron 22 and the No. 3 flat iron 23 on the right-angle fixing piece of the bite tooth are on the same plane;

[0037] The No. 1 screw rod 11 and the No. 2 screw rod 12 are cross-lapped, and the No. 1 flat iron 21 is set at an intersection angle between them; the No. 1 screw rod 11 and the No. 2 screw rod 12 are connected to the No. 1 flat iron 21 through the nut 3; in the present invention, the size of the occlusal tooth right-angle fixing piece is adjusted by screwing the screw rod in or out of the nut.

[0038] The plywood 5 is an L-shaped structure with a thickness of 15mm. A rubber pad is added at its edge to prevent leakage. The plywood 5 is arranged on the top of the outer wall of the flue. The bite-tooth right-angle fixing piece is arranged below the plywood 5 and is horizontally fixed on the outer wall of the flue. The bent end of the bent steel bar 6 is inserted into the gap between the plywood 5 and the bite-tooth right-angle fixing piece, and the other end is fixed on the outer wall of the flue. At this time, the bent steel bar has bending tensile stress; the gap between the plywood 5 and the bite-tooth right-angle fixing piece is greater than or equal to 10mm.

[0039] Specifically, the bent steel bar 6 is a φ10 steel bar with a total length of 900 mm, a bent end length of 150 mm, a bending angle of 45-60°, and serves as a member for template reinforcement support. In the present invention, the number of bent steel bars 6 is not less than two, and at least one bent steel bar is correspondingly arranged on each screw rod.

[0040] The present invention also discloses a method for using an auxiliary device for patching a flue hole, and the method is as follows:

[0041] 1) Clean, roughen and moisten the reserved pipe opening;

[0042] 2) Install the right-angle fixing piece of the occlusal tooth, and leave a space of 26 mm between the upper opening of the right-angle fixing piece of the occlusal tooth and the top plate;

[0043] 3) The glue board 5 is placed in the corresponding position above the right-angle fixing piece of the bite tooth through the reserved space;

[0044] 4) Insert the bent end of the bent steel bar 6 obliquely into the gap between the glue plate 5 and the right-angle fixing piece of the bite tooth;

[0045] 5) Correct the bent steel bar 6 to make it perpendicular to the plywood 5, and fix the other end of the bent steel bar 6 on the outer wall of the flue; at this time, the bent end is in contact with the bottom surface of the plywood 5, fixing and supporting the plywood 5;

[0046] 6) Use micro-expansive concrete with a strength one grade higher than that of the floor slab concrete to fill the flue hole until it is poured to 1 / 2 of the floor slab thickness; because the flue hole is a post-fill hole, the concrete is not poured and formed in one go. In order to prevent leakage after the post-poured micro-expansive concrete is formed, a polymer waterproof coating layer is applied when it is poured to 1 / 2 of the floor slab thickness to meet the waterproof requirements of the post-fill hole;

[0047] 7) After the initial setting of the micro-expansion concrete, apply a layer of water to prevent the concrete from leaking;

[0048] 8) Continue pouring micro-expansion concrete until it is 10mm lower than the slab surface;

[0049] 9) After the concrete strength reaches the design strength, remove the bent steel bars 6, the bite-tooth right-angle fixings and the plywood 5 to complete the flue hole filling process.

[0050] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary device for filling a flue hole, characterized in that: include: A matching right-angle fixing member for occlusal teeth, a plywood (5) and a bent steel bar (6); the right-angle fixing member for occlusal teeth is composed of a screw (1), a right-angle flat iron (2), a nut (3) and a hinge (4); wherein: The screw rod (1) is divided into a No. 1 screw rod (11) and a No. 2 screw rod (12); the right-angle flat iron (2) is divided into a No. 1 flat iron (21), a No. 2 flat iron (22) and a No. 3 flat iron (23); nuts (3) are welded to both outer sides of the No. 1 flat iron (21); the No. 2 flat iron (22) is hinged to the end of the No. 1 screw rod (11) through a hinge (4); the No. 3 flat iron (23) is hinged to the end of the No. 2 screw rod (12) through a hinge (4); the other ends of the No. 1 screw rod (11) and the No. 2 screw rod (12) are welded with a handle rod (13); The first screw rod (11) and the second screw rod (12) are cross-jointed, and the first flat iron (21) is arranged at an intersection angle between them; the first screw rod (11) and the second screw rod (12) are connected to the first flat iron (21) through a nut (3); The plywood (5) is an L-shaped structure and is arranged on the top of the outer wall of the flue; the snap-tooth right-angle fixing piece is arranged below the plywood (5) and is horizontally fixed on the outer wall of the flue; the bent end of the bent steel bar (6) is inserted into the gap between the plywood (5) and the snap-tooth right-angle fixing piece, and the other end is fixed on the outer wall of the flue.

2. The auxiliary device for filling a flue hole according to claim 1, characterized in that: The gap between the glue plate (5) and the right-angle fixing piece of the bite teeth is greater than or equal to 10 mm.

3. The auxiliary device for filling a flue hole according to claim 2, characterized in that: The thickness of the plywood (5) is 15-16 mm.

4. The auxiliary device for filling a flue hole according to claim 3, characterized in that: A rubber pad is provided at the edge of the plywood (5).

5. The auxiliary device for filling a flue hole according to claim 1, characterized in that: The bent steel bar (6) is a φ10 steel bar with a total length of 900 mm, a bent end length of 150 mm, and a bending angle of 45-60°.

6. An auxiliary device for filling a flue hole according to claim 1, 2, 3, 4 or 5, characterized in that: The number of the bent steel bars (6) is not less than two.

7. A method for using the auxiliary device for filling a flue hole according to claim 1, 2, 3, 4 or 5, characterized in that: The method is as follows: 1) Clean, roughen and moisten the reserved pipe opening; 2) Install the right-angle fixing piece of the occlusal teeth, and leave space between the upper opening of the right-angle fixing piece of the occlusal teeth and the top plate; 3) The plywood (5) is placed in the corresponding position above the right-angle fixing piece of the bite teeth through the reserved space; 4) inserting the bent end of the bent steel bar (6) obliquely into the gap between the plywood (5) and the right-angle fixing piece of the bite tooth; 5) Adjust the bent steel bar (6) to make it perpendicular to the plywood (5), and fix the other end of the bent steel bar (6) on the outer wall of the flue; 6) Use micro-expansive concrete with a strength one grade higher than that of the floor slab concrete to fill the flue hole until it reaches 1 / 2 of the floor slab thickness; 7) After the initial setting of the micro-expansion concrete, apply a layer of water to prevent the concrete from leaking; 8) Continue pouring micro-expansion concrete until it is 10mm lower than the slab surface; 9) After the concrete strength reaches the designed strength, the bent steel bars (6), the bite-tooth right-angle fixings and the plywood (5) are removed to complete the flue hole filling process.

8. The method for using the auxiliary device for filling a flue hole according to claim 7, characterized in that: Apply a layer of polymer waterproof coating when pouring to 1 / 2 of the floor slab thickness.

9. The method for using the auxiliary device for filling a flue hole according to claim 7, characterized in that: The reserved space between the upper opening of the right-angle fixing of the occlusal tooth and the top plate is 26-28 mm.

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