CN107338956A - A kind of hole to be provided sleeve pipe and its application method - Google Patents

Abstract

The invention discloses a kind of hole to be provided sleeve pipe and its application method, its structure includes 2N pieces arc shrouds, fagging, fagging is in hub-and-spoke configuration and is configured with 2N extension, each extension in a tubular form and corresponding supports a piece of arc shrouds, it is used cooperatively with the extension of the fagging, it is each equipped with inserting the projection of extension inner chamber on the inwall of every arc shrouds, after the fagging is installed, all arc shrouds scrabble up circular tube shaped, that is every arc shrouds are to piece together 2N/mono- of rear pipe, and N here is >=1 natural number.A kind of hole to be provided sleeve pipe and its application method of the present invention compared with prior art, high recycling rate, effectively improves efficiency of construction, shortens worker and guards the time, saves material, practical, applied widely, has good application value.

Description

A bushing with reserved holes and its application method

technical field

The invention relates to the technical field of municipal construction equipment, in particular to a bushing with reserved holes and its usage method.

Background technique

In the construction of mechanical and electrical engineering in the prior art, it is necessary to reserve a large number of openings through the floor slab, especially for water supply, drainage, rainwater, and air-conditioning water systems. The quality of the openings reserved in the early stage plays a vital role in the smooth progress of the electromechanical installation in the later stage. The current conventional construction technology for reserved holes usually uses PVC and steel casings to be directly embedded or ordinary portable casings processed therefrom. For the direct buried casing, it needs to be fixed to the formwork with nails and tie wires and other accessories, and the direct buried casing and the conventional portable casing must be pulled out after the concrete is poured and reaches a certain strength. The time requirement is strict. The process of extracting the casing leaves artifacts on the concrete finish. During the pre-embedding process, it often happens that the concrete enters the casing or the casing cannot be taken out. It is necessary to take out the casing by tapping, which will not only destroy the reserved hole, but also cause damage to the casing itself, making the casing Cannot be reused. Traditional construction methods are time-consuming, labor-intensive, and consumable, which no longer meet the requirements of green construction.

Based on the above problems, the present invention proposes a bushing with reserved holes and its usage method to solve the existing technical defects.

Contents of the invention

The technical task of the present invention is to address the above deficiencies, to provide a reserved hole casing and its use method that can overcome the problems of low reuse rate, long guard time, and poor quality of reserved holes in the prior art.

A bushing with a reserved hole, its structure includes 2N arc-shaped bushings and braces, the braces are star-shaped and equipped with 2N extensions, each extension is tubular and supports a corresponding arc-shaped bushing , used in conjunction with the extension of the brace, the inner wall of each arc-shaped sleeve is equipped with a bump that can be inserted into the inner cavity of the extension. After installing the brace, all the arc-shaped casings are pieced together to form a circle Tubular, that is, each piece of arc-shaped casing is 1/2N of the round pipe after assembly, where N is a natural number ≥ 1.

Every two adjacent arc-shaped sleeves are connected by chain connectors or loose-leaf joints. When chain connectors are used, the two ends of the chain connectors are respectively fixed on two adjacent arc-shaped sleeves by bolts. shaped casing.

The two connecting surfaces used to connect with adjacent arc-shaped casings on each piece of arc-shaped casing are inclined surfaces, and the two connecting surfaces are respectively inclined surface one and inclined surface two. The surfaces can be used together, that is, the inclined surface one of each arc-shaped sleeve is connected with the inclined surface two of the adjacent arc-shaped sleeve.

All the arc-shaped sleeves are connected to the lifting mechanism placed in the assembled round tube. The lifting mechanism is composed of a central rod and a chain-shaped connector. One end of the chain-shaped connector is fixed on the inner wall of the above-mentioned arc-shaped sleeve. , and the other end is fixed on the outer wall of the central rod through an iron ring. The chain-like connectors are divided into N types in descending order of length: the first chain, the second chain...the Nth chain, and are sequentially connected between the arc sleeve and the Between the central rods, that is, the chain-like connectors connecting the arc-shaped sleeve and the central rod are respectively the first chain, the second chain...the Nth chain, the first chain, the second chain...the Nth chain.

All arc-shaped sleeves are connected to the lifting mechanism placed in the round tube after patchwork. The lifting mechanism is composed of a central rod, a central tube, and a chain connector. The central rod is sleeved in the central tube. The side welding is equipped with convex strips, and the lower side of the central tube is provided with a slideway for use with the convex strips. The length of the central tube is the same as that of the arc-shaped sleeve, and the central sleeve is placed in the round tube after assembly. , the top and bottom of which are flush with the pieced round tube; one end of the chain connector is fixed on the inner wall of the above-mentioned arc-shaped sleeve, and the other end is fixed on the outer wall of the central tube through an iron ring. The chain connectors are divided into N types in descending order of length: the first chain, the second chain...the Nth chain, and they are sequentially connected between the arc-shaped sleeve and the center tube, that is, the chain connecting the arc-shaped sleeve and the center tube The connectors are respectively the first chain, the second chain...the Nth chain, the first chain, the second chain...the Nth chain.

When the lifting mechanism is composed of a central rod and a chain-shaped connector, a notch for placing the central rod is provided on the support plate; Place the notch for the center pole.

The top of the central rod is equipped with a gripper, and the gripper cooperates with the central rod to form a "T" shape; the bottom of the central rod is equipped with a threaded drill bit, and the top and bottom of the central rod protrude out of the pieced round tube .

The top of the patched round tube is equipped with a circular cover plate, which is sleeved on the central rod and fixed by a nut. Correspondingly, the upper part of the central rod is provided with a screw thread used in conjunction with the nut. After the cover plate is fixed , and its outer circumference is flush with the outer circumference of the pieced circular tube.

The arc-shaped sleeve is provided with four pieces, and each piece of arc-shaped sleeve is a quarter of the circular tube after being pieced together. Correspondingly, the support plate is equipped with four extension sections, and the chain-like connectors of the lifting mechanism are divided into Two different lengths: the first chain and the second chain.

The present invention also provides a method for using the bushing with reserved holes, the implementation process of the method is as follows:

Consult the drawing, and determine the center position of the reserved opening according to the position of the beam or wall and the spring line.

First, determine the center position of the reserved hole by snapping the line;

After determining the center position of the reserved hole, place the pieced round pipe stably, and place the threaded drill bit under the center rod on the center position of the reserved hole;

Turn the gripper, drill the threaded drill bit under the center rod into the formwork, and then use the support plate to spread the casing after it is firmly fixed, so that the arc-shaped casing is placed at the reserved hole position;

After the arc-shaped sleeve is placed at the specified position, rotate the nut above the cover plate to press the cover plate downward, and the arc-shaped sleeve is fixed;

After the concrete is solidified, loosen the nuts, lift the cover plate, and take out the support plate;

Rotate the gripper to drill the threaded drill bit of the central rod out of the formwork;

Lift the gripper of the center rod, and lift the casing out of the concrete hole as a whole.

Compared with the prior art, a reserved hole sleeve and its application method of the present invention have the following beneficial effects:

A bushing with a reserved hole in the present invention and its use method have the characteristics of less investment, convenient installation and disassembly, convenient operation, convenient movement, and economical application. Save material; after the concrete is solidified, there is no need to beat it, it is convenient to extract, and the operation is simple, which can improve the quality of the reserved hole, does not damage the finished surface of the concrete, and prevents debris from entering the casing; it is firmly fixed to prevent the casing from shifting; this device shortens the working time , saving labor costs, reducing material waste, creating better economic benefits, strong practicability, wide application range, and good promotion and application value.

Description of drawings

Accompanying drawing 1 is the top structure diagram of the present invention.

Accompanying drawing 2 is A-A sectional view of the present invention.

Accompanying drawing 3 is B-B sectional view of the present invention.

Accompanying drawing 4 is the C sectional view of the present invention.

Accompanying drawing 5 is the schematic diagram of the brace plate of the present invention.

The marks in the accompanying drawings indicate respectively:

1. Gripper, 2. Nut, 3. Cover plate, 4. Arc sleeve, 5. Bolt, 6. Chain connector, 7. First chain, 8. Support plate, 9. Bump, 10. Center tube, 11, center rod, 12, second chain, 13, hoop, 14, raised bar, 15, slideway, 16, inclined surface one, 17, inclined surface two, 18, notch.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, and Figure 5, a sleeve with reserved holes has a structure including 2N arc-shaped sleeves 4 and braces 8, and the braces 8 are in a star-shaped structure and There are 2N extension sections, and each extension section is tubular and supports an arc-shaped sleeve 4 correspondingly. For use with the extension section of the support plate 8 , each arc-shaped sleeve 4 is equipped with a The protrusion 9 that can be placed in the inner cavity of the extension section, after installing the support plate 8, all the arc-shaped sleeves 4 are assembled into a circular tube shape, that is, each piece of arc-shaped sleeve 4 is 1/2N of the assembled round tube, here N is a natural number ≥ 1.

Every two adjacent arc-shaped sleeves 4 are movably connected by a chain connector 6 or loose-leaf. On the adjacent arc sleeve 4 of the sheet.

The two connection surfaces that are used to connect with the adjacent arc casing 4 on each piece of arc casing 4 are inclined surfaces, and the two connection surfaces are respectively inclined surface one 16 and inclined surface two 17. The two connection surfaces of the pipe 4 can be used in conjunction, that is, the inclined surface one 16 of each arc-shaped sleeve 4 is connected with the inclined surface two 17 of the adjacent arc-shaped sleeve 4 .

All the arc-shaped sleeves 4 are connected to the lifting mechanism placed in the round tube after patching together. The lifting mechanism is composed of a central rod 11 and a chain-shaped connector. One end of the chain-shaped connector is fixed on the above-mentioned arc-shaped sleeve 4 The other end is fixed on the outer wall of the central rod 11 through an iron ring 13. The chain-like connectors are divided into N types in descending order of length: the first chain, the second chain...the Nth chain, and are connected in sequence Between the arc-shaped sleeve 4 and the center rod 11, that is, the chain-like connectors connecting the arc-shaped sleeve 4 and the center rod 11 are respectively the first chain, the second chain...the Nth chain, the first chain, and the second chain ... the Nth chain.

or:

All lifting mechanisms are composed of a central rod 11, a central tube 10, and a chain connector. The central rod 11 is sleeved in the central tube 10, and a convex strip 14 is welded on the lower side of the central rod 11 to cooperate with the convex strip 14. For use, the lower side of the central tube 10 is provided with a slideway 15, and the convex strip 14 is relatively fixed with the slideway 15 and the cover plate 3 described below. The length of the central tube 10 is the same as that of the arc sleeve 4. After the center sleeve is placed in the pieced round tube, its top and bottom are flush with the pieced up round tube; one end of the chain-like connector is fixed on the inner wall of the above-mentioned arc-shaped sleeve 4, and the other end is Fixed on the outer wall of the central tube 10 by an iron ring 13, the chain-like connectors are divided into N types in descending order of length: the first chain, the second chain...the Nth chain, and are sequentially connected between the arc-shaped sleeve 4 and the center Between the pipes 10, that is to say, the chain-shaped connectors connecting the arc-shaped casing 4 and the central pipe 10 are respectively the first chain, the second chain...the Nth chain, the first chain, the second chain...the Nth chain.

When the lifting mechanism is composed of a central rod 11 and a chain connector, the support plate 8 is provided with a notch 18 for placing the central rod 11; when the lifting mechanism is composed of a central rod 11, a central tube 10 and a chain connector , The support plate 8 is provided with a notch 18 for placing the central rod 11 .

The top of the central rod 11 is equipped with a handle 1, which is in the shape of a "T" with the central rod 11; The assembled round tube is produced.

The top of the pieced round tube is equipped with a circular cover plate 3, which is sleeved on the central rod 11 and fixed by the nut 2. Correspondingly, the upper part of the central rod 11 is provided with a thread, after the cover plate 3 is fixed, its outer circumference is flush with the outer circumference of the round pipe after patching together.

Take N=2 as an example below, that is to say, the arc-shaped casing 4 in the present invention is provided with four pieces, and each piece of arc-shaped casing 4 is a quarter of the round pipe after patching together. Correspondingly, the brace The plate 8 is configured with four extensions, and the chain connectors of the lifting mechanism are divided into two types with different lengths: the first chain 7 and the second chain 12 .

The chain connector is an iron chain, the iron chain and the above-mentioned iron ring 13 are all made of steel, the arc-shaped sleeve 4 and the bolts and nuts 2 are galvanized components, and the rest are iron materials. The specific connection can be made by welding way to achieve.

For the arc sleeves 4 with the four petals and quarter arc sleeves having equal arc lengths and equal central angles, the arc lengths and edge angles of each arc sleeve 4 are all 45°.

For the iron chains and their fixing bolts between the arc casings, two fixing bolts are evenly arranged on the upper and lower sides at the central angle of 15° on both sides of the interface of each arc casing, and chain connectors are used, that is, thinner iron chains and The fixing bolts are fixed to connect the arc sleeves.

The connecting ends of the first chain 7 and the second chain 12 connected between the arc sleeve and the central pipe 10 are all on the same horizontal plane, and the fixing bolts are evenly arranged up and down. The first chain 7 drawn in Fig. 2 is slightly longer than the second chain 12 drawn in Fig. 3, and the surplus length of the first chain 7 is 1/3 of its own length, reaching the process of lifting the fixed rod, The first chain 7 in Fig. 2 is stressed first, the second chain 12 in Fig. 3 is stressed first, and the purpose of the chain-like connectors between the arc sleeves not being stressed.

For the central tube 10, the length of the central tube 10 is equal to the height of the casing, and can meet the storage space of the central rod 11, and the material is a Ø20 welded pipe. As shown in FIG. 2 , a space with a height of 4 cm and an arc angle of 90° is reserved on both sides below the central tube 10 .

For the iron ring 13, the position of the iron ring 13 is the same as the horizontal position of the fixing bolt of the arc-shaped sleeve 4, and the iron ring 13 is limited to a fixed horizontal plane by the upper and lower limit points, and the size of the iron ring 13 is larger than the diameter of the center pipe 10 by 1 No.

For the brace 8 and the bump 9, the bump 9 is located at the vertical center of each arc-shaped casing 4, and the four support points are evenly distributed, as shown in Figures 1-4, so that the brace 8 can be placed horizontally, as Fig. 5 shows the shape of the support plate 8. When the support plate 8 stretches the sleeve pipes, there is no obvious gap between the arc sleeve pipes 4 .

For the center rod 11, as shown in Figure 2 and Figure 3, a gripper 1 is set at the top, and a section of thread is provided downward for the nut 2 to limit the cover plate 3, and two limit rods are set at the bottom for lifting the center tube 10. The bottom part is a threaded drill bit, which is used to fix with the template.

For the cover plate 3, the outline of the cover plate 3 can cover the casing, and the cover plate 3 is pressed tightly with the nut 2, which not only prevents foreign matter from entering the casing, but also fixes the casing on the formwork.

Based on the above structure, the present invention also provides a method for using the bushing with a reserved hole, and the specific implementation process of the method is as follows:

Consult the drawing, and determine the center position of the reserved opening according to the position of the beam or wall and the spring line.

After determining the central position of the reserved hole, this is placed steadily, and the threaded drill bit below the central rod 11 is placed on the central position of the reserved hole.

Turn the gripper 1, drill the threaded drill bit under the central rod 11 into the formwork, and after it is firmly fixed, use the support plate 8 to spread the casing, so that the casing is placed at the reserved hole position.

After the casing is placed at the specified position, rotate the nut 2 above the cover plate 3 to press the cover plate 3 downward, and the casing is fixed.

After the concrete is solidified, loosen the nut 2, lift the cover plate 3, and take out the support plate 8.

Rotate the gripper 1 to drill the threaded drill bit of the central rod 11 out of the template.

Lift the gripper 1 of the central rod 11, and the casing is lifted out of the concrete hole as a whole.

Through the above specific implementation manners, those skilled in the technical field can easily realize the present invention. However, it should be understood that the present invention is not limited to the specific embodiments described above. On the basis of the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features, so as to realize different technical solutions.

Except for the technical features described in the instructions, all are known technologies by those skilled in the art.

Claims (10)

1. A casing with reserved holes, characterized in that its structure includes 2N arc-shaped casings and braces, the braces are star-shaped and equipped with 2N extensions, each extension is tubular and corresponds to Support a piece of arc-shaped sleeve, and use it in conjunction with the extension section of the support plate. On the inner wall of each piece of arc-shaped sleeve, there is a protrusion that can be inserted into the inner cavity of the extension section. After installing the support plate, all arcs Shaped sleeves are assembled into a circular tube shape, that is, each piece of arc-shaped sleeve is 1/2N of the assembled circular tube, where N is a natural number ≥ 1. 2. A bushing with a reserved hole according to claim 1, characterized in that every two adjacent arc-shaped bushings are movably connected by a chain connector or loose-leaf, when a chain connector is used to connect , the two ends of the chain connector are respectively fixed on two adjacent arc-shaped sleeves by bolts. 3. A bushing with reserved holes according to claim 1 or 2, characterized in that, the two connecting surfaces used to connect with adjacent arc-shaped bushings on each arc-shaped bushing are inclined surfaces, The two connecting surfaces are inclined surface one and inclined surface two respectively, and the two connecting surfaces of each arc-shaped casing can be used together, that is, the inclined surface one of each arc-shaped casing and the inclined surface two of the adjacent arc-shaped casing Mate connection. 4. A bushing with reserved holes according to claim 1, characterized in that all arc-shaped bushings are connected to a lifting mechanism placed in the round tube after patching together, and the lifting mechanism is composed of a central rod, a chain One end of the chain-shaped connector is fixed on the inner wall of the above-mentioned arc-shaped casing, and the other end is fixed on the outer wall of the central rod through an iron ring. The chain-shaped connectors are divided into N types in descending order of length: The first chain, the second chain...the Nth chain, and are sequentially connected between the arc-shaped sleeve and the central rod, that is, the chain-like connectors connecting the arc-shaped sleeve and the central rod are the first chain, the second chain... ...the Nth chain, the first chain, the second chain...the Nth chain. 5 . The bushing with a reserved hole according to claim 4 , wherein a notch for placing a central rod is opened on the support plate. 6 . 6. A bushing with reserved holes according to claim 1, characterized in that all arc-shaped bushings are connected to a lifting mechanism placed in the round tube after patching together, and the lifting mechanism consists of a central rod, a central Composed of tubes and chain-like connectors, the central rod is sleeved in the central tube, and a raised strip is welded on the lower side of the central rod. For use with the raised strip, a slideway is provided on the lower side of the central tube. The length is the same as that of the arc-shaped sleeve. After the central sleeve is placed in the round tube after assembly, its top and bottom are flush with the round tube after assembly; one end of the chain-like connector is fixed on the above-mentioned arc On the inner wall of the casing, the other end is fixed on the outer wall of the central tube through an iron ring. The chain-like connectors are divided into N types in descending order of length: the first chain, the second chain...the Nth chain, and are connected in sequence Between the arc-shaped sleeve and the center tube, that is, the chain-shaped connectors connecting the arc-shaped sleeve and the center tube are the first chain, the second chain...the Nth chain, the first chain, the second chain...the Nth chain chain. 7 . The bushing with a reserved hole according to claim 6 , wherein a notch for placing a central rod is opened on the support plate. 8 . 8. A bushing with a reserved hole according to any one of claims 4-7, characterized in that, the top of the central rod is provided with a gripper, and the gripper cooperates with the central rod to form a "T" shape; the The bottom of the center rod is equipped with a threaded drill bit, and the top and bottom of the center rod all extend out of the pieced round pipe. 9. A bushing with a reserved hole according to claim 8, characterized in that, the top of the patched round tube is provided with a circular cover plate, which is sleeved on the central rod and fixed by a nut, Correspondingly, the upper part of the central rod is provided with a screw thread used in conjunction with the nut, and after the cover plate is fixed, its outer circumference is flush with the outer circumference of the pieced circular tube. 10. A method for using a reserved hole sleeve, characterized in that, based on the reserved hole sleeve described in the above claims, its specific use process is: Consult the drawings, and determine the center position of the reserved opening according to the position of the beam or wall and the spring line; First, determine the center position of the reserved hole by snapping the line; After determining the center position of the reserved hole, place the pieced round pipe stably, and place the threaded drill bit under the center rod on the center position of the reserved hole; Turn the gripper, drill the threaded drill bit under the center rod into the formwork, and then use the support plate to spread the casing after it is firmly fixed, so that the arc-shaped casing is placed at the reserved hole position; After the arc-shaped sleeve is placed at the specified position, rotate the nut above the cover plate to press the cover plate downward, and the arc-shaped sleeve is fixed; After the concrete is solidified, loosen the nuts, lift the cover plate, and take out the support plate; Rotate the gripper to drill the threaded drill bit of the central rod out of the formwork; Lift the gripper of the center rod, and lift the casing out of the concrete hole as a whole.