Top formwork supporting structure for long and narrow hole

Abstract

The utility model discloses a top formwork supporting structure for a long and narrow hole, which comprises a top formwork to be poured above the long and narrow hole, a formwork supporting pipe is arranged at the lower end of the top formwork to be poured, and a plurality of pairs of supporting bases are oppositely arranged on two sides of the long and narrow hole. Supporting bases are oppositely arranged on the two sides of the long and narrow hole, horizontal supporting steel pipes are inserted in the two horizontal through holes in a mode of crossing the long and narrow hole, and at least one supporting base is arranged on the horizontal supporting steel pipes between each pair of supporting bases and is sleeved with the two horizontal steel pipes from one side of the long and narrow hole to be located in the middle of the long and narrow hole in a suspended mode. The top layer formwork supporting pipe is sleeved with the positioning rod to be supported on the top of the supporting base. The steel pipe supporting base is arranged around the long and narrow hole and sleeved with the horizontal steel pipe to be positioned in the middle of the long and narrow hole in a suspended mode, supporting of the top structure of the long and narrow hole is effectively achieved, and the steel pipe supporting base is easy and convenient to manufacture, simple in supporting operation and convenient to apply and popularize in engineering.

Description

Technical Field

[0001] The utility model belongs to the field of construction and relates to a top template supporting structure for narrow and long openings. Background Art

[0002] There are floor openings in structural construction and decoration construction, such as stair openings. There are openings on the upper and lower floors. When it comes to the top floor, it is necessary to cast the floor slab. Therefore, it is necessary to set up a frame support formwork or provide protection. Conventional construction uses steel as the force support foundation at the bottom of the top floor slab formwork, but some openings are not large (within 2-3m). If steel is used as the frame support force support, it is necessary to bring in steel separately and cut the steel, which makes construction difficult and costly. If these openings use frame pipes as support frames, they need to pass through the openings and support them to the bottom. The long steel pipe support cannot meet the requirements of force and safety. Therefore, the construction of the top structure of small and medium-sized openings has always been a problem for construction units. The use of traditional materials for construction cannot meet the requirements of force and safety. The use of steel for construction has a certain difficulty in bringing in materials due to the small amount of materials used. The heavy weight of steel is inconvenient to operate. At the same time, the construction cost of steel is high after processing. Therefore, a new structure that can use ordinary materials on site to meet the force foundation of the construction frame of the top structure of small and medium-sized openings is needed. Summary of the invention

[0003] The purpose of the utility model is to provide a top-level formwork support structure for narrow and long openings. By surrounding the narrow and long openings and arranging a steel pipe support base in the middle of the narrow and long openings through horizontal steel pipes, the support of the top structure of small and medium-sized openings is effectively solved, the construction is simple, and safety is guaranteed.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A top-layer formwork support structure for a narrow and long opening, including a top-layer formwork to be cast above the narrow and long opening, a formwork support tube is arranged at the lower end of the top-layer formwork to be cast, and multiple pairs of support bases are arranged oppositely on both sides of the narrow and long opening, and the support bases are vertically provided with two horizontal through holes at intervals up and down, and horizontal support steel tubes are respectively inserted into the two horizontal through holes of the support bases oppositely arranged on both sides of the narrow and long opening, spanning the narrow and long opening, and at least one support base is on the horizontal support steel tube between each pair of support bases, and the two horizontal steel tubes are inserted from one side of the narrow and long opening and are suspended and positioned in the middle of the narrow and long opening, and a positioning rod is arranged on the top of the support base, and the top-layer formwork support tube is inserted into the positioning rod and supported on the top of the support base.

[0006] The solution is further as follows: the support base includes an upper support block and a lower support block, the upper support block and the lower support block are connected and fixed by a height adjustment mechanism, two horizontal through holes are respectively on the upper support block and the lower support block, and the positioning rod is arranged on the top of the upper support block.

[0007] The solution is further as follows: the height adjustment mechanism includes at least three bolts, the upper ends of the three bolts are welded and fixed to the lower end surface of the upper support block, blind holes are provided on the upper end surface of the lower support block downwardly corresponding to the three bolts, the lower ends of the three bolts are inserted into the blind holes, and adjusting nuts are respectively provided on the three bolts. After the lower ends of the three bolts are inserted into the blind holes, the adjusting nuts are pressed against the upper end surface of the lower support block, and the three adjusting nuts are rotated to control the length of the three bolts extending out of the blind holes and the distance between the upper support block and the lower support block, thereby adjusting the height of the support base.

[0008] The solution is further as follows: a groove is provided on the side of the lower support block, the groove is connected to the blind hole, and after the lower end of the bolt is inserted into the blind hole, a fixed end nut is screwed into the groove, and the end nut is used to limit and prevent the lower end of the bolt from escaping from the blind hole.

[0009] A further solution is that a spring is sleeved between the end nut and the blind hole outlet of the bolt in the groove, and the spring is used to reduce the shaking of the bolt.

[0010] The beneficial effects of the utility model are as follows: by setting a steel pipe support base around the narrow and long hole, setting a transverse perforation on the steel pipe support base, inserting a horizontal steel pipe into the perforation, and simultaneously inserting the horizontal steel pipe into the steel pipe support base to position it in the middle of the narrow and long hole, inserting the top template support pipe on the steel pipe support base, the support of the top structure of the narrow and long hole is effectively solved, and the suspended middle support pipe conducts the vertical force downward to both sides through the horizontal steel pipe, the construction is simple, safety is guaranteed, the steel pipe support base is easy to obtain materials, the construction material cost and labor cost are low, and good economic and social benefits can be achieved. The steel pipe support base is easy to make, the support operation is simple, and it is easy to promote and apply in engineering.

[0011] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic plan view of the narrow and long hole of the utility model;

[0014] Figure 3 This is a schematic diagram of the support base structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the distribution of three bolts of the support base of the utility model. Figure 3 A- A view. DETAILED DESCRIPTION

[0016] A top formwork support structure for narrow and long openings, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the top-level formwork support structure includes a top-level formwork 1 to be cast above the narrow and long opening, a formwork support tube 2 is arranged at the lower end of the top-level formwork to be cast, and a plurality of pairs of support bases 4 are arranged oppositely on both sides of the narrow and long opening 3, and the support base 4 is provided with two horizontal through holes 401 vertically spaced apart from each other on the upper and lower sides of the narrow and long opening 3, and horizontal support steel pipes 5 are respectively inserted into the two horizontal through holes 401 of the support base 4 oppositely arranged on both sides of the narrow and long opening 3 across the narrow and long opening 3, and at least one of the horizontal support steel pipes 5 between each pair of support bases is provided. The two horizontal steel pipes 5 are inserted from one side of the narrow and long opening 3 into the support base 4, and are suspended and positioned in the middle of the narrow and long opening, and a positioning rod 402 is arranged on the top of the support base, and the top-level formwork support tube 2 is inserted into the positioning rod 402 and supported on the top of the support base 4. In the embodiment, the horizontal support steel pipes 5 are respectively inserted through the upper and lower horizontal through holes 401, thereby ensuring the stability of the horizontal support steel pipe 5 suspended in the middle of the narrow and long opening.

[0017] In order to adjust the height of the top template support pipe 2, the support base 4 is divided into two parts, such as Figure 3 As shown: the support base 4 includes an upper support block 403 and a lower support block 404, the upper support block and the lower support block are connected and fixed by a height adjustment mechanism, two horizontal through holes 401 are respectively on the upper support block 403 and the lower support block 404, and the positioning rod 402 is arranged on the top of the upper support block 403.

[0018] In the embodiment: Figure 3 and Figure 4 As shown, the height adjustment mechanism includes at least three bolts 6, the upper ends of the three bolts 6 are screwed into the lower end surface of the upper support block 403 and welded and fixed, and blind holes are provided on the upper end surface of the lower support block 404 downwardly corresponding to the three bolts 6, and the lower ends of the three bolts 6 are inserted into the blind holes, and adjusting nuts 7 are respectively provided on the three bolts. After the lower ends of the three bolts are inserted into the blind holes, the adjusting nuts 7 are pressed against the upper end surface of the lower support block, and rotating the three adjusting nuts 7 to control the length of the three bolts extending out of the blind holes is equivalent to adjusting the distance between the upper support block 403 and the lower support block 404, thereby adjusting the height of the support base.

[0019] In order to prevent the three bolts 6 from falling off the support block 404 after being inserted, they form a component with the lower support block 404: a groove 404-1 is set on the side of the lower support block 404, and the groove 404-1 is connected to the blind hole. After the lower end of the bolt 6 is inserted into the blind hole, the fixed end nut 601 is screwed into the groove, and the end nut is used to limit and prevent the lower end of the bolt from falling out of the blind hole; and, the bolt in the groove is provided with a spring 8 between the end nut and the blind hole outlet, and the spring is used to support the distance between the end nut 601 and the upper blind hole to reduce the shaking of the bolt 6.

[0020] The above-mentioned top-level formwork support structure embodiment for the narrow and long opening effectively solves the support problem of the top structure of the narrow and long opening by arranging a steel pipe support base around the narrow and long opening and inserting a horizontal steel pipe into the steel pipe support base and positioning it in the middle of the narrow and long opening. The suspended middle support pipe transmits the vertical force to both sides downward through the horizontal steel pipe. The steel pipe support base is easy to manufacture and the support operation is simple, which is convenient for promotion and application in engineering projects.

Claims

1. A top formwork support structure for a narrow and long hole, comprising a top formwork to be poured above the narrow and long hole, and a formwork support pipe is arranged at the lower end of the top formwork to be poured, characterized in that: A plurality of pairs of support bases are arranged opposite to each other on both sides of the narrow and long opening, and the support bases are provided with two horizontal through holes spaced vertically up and down, and horizontal support steel pipes are respectively inserted into the two horizontal through holes of the support bases arranged opposite to each other on both sides of the narrow and long opening, spanning the narrow and long opening, and at least one support base is on the horizontal support steel pipe between each pair of support bases, and the two horizontal steel pipes are inserted from one side of the narrow and long opening and are suspended and positioned in the middle position of the narrow and long opening, and a positioning rod is arranged on the top of the support base, and the top template support pipe is inserted into the positioning rod and supported on the top of the support base.

2. The top formwork support structure of the narrow and long opening according to claim 1 is characterized in that: The support base includes an upper support block and a lower support block, which are connected and fixed by a height adjustment mechanism, and two horizontal through holes are respectively provided on the upper support block and the lower support block, and the positioning rod is arranged on the top of the upper support block.

3. The top formwork support structure of the narrow and long opening according to claim 2 is characterized in that: The height adjustment mechanism includes at least three bolts, the upper ends of the three bolts are welded and fixed to the lower end surface of the upper support block, and blind holes are arranged downwardly on the upper end surface of the lower support block corresponding to the three bolts. The lower ends of the three bolts are inserted into the blind holes, and adjusting nuts are respectively arranged on the three bolts. After the lower ends of the three bolts are inserted into the blind holes, the adjusting nuts are pressed against the upper end surface of the lower support block. The three adjusting nuts are rotated to control the length of the three bolts extending out of the blind holes and the distance between the upper support block and the lower support block, thereby adjusting the height of the support base.

4. The top formwork support structure of the narrow and long opening according to claim 3, characterized in that: A groove is arranged on the side of the lower support block, and the groove is connected with the blind hole. After the lower end of the bolt is inserted into the blind hole, a fixed end nut is screwed into the groove, and the end nut is used for limiting and preventing the lower end of the bolt from falling out of the blind hole.

5. The top formwork support structure of the narrow and long opening according to claim 4, characterized in that: The bolt in the groove is sleeved with a spring between the end nut and the blind hole outlet, and the spring is used to reduce the shaking of the bolt.

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