Stair pouring supporting structure

Abstract

The utility model discloses a stair pouring supporting structure which comprises a plurality of sets of supporting vertical rods, combined top heads arranged on the supporting vertical rods, main keels and auxiliary keels arranged on the combined top heads, stair formworks arranged on the auxiliary keels and transverse pull rods arranged between any two adjacent supporting vertical rods. And the diagonal draw bar is arranged on any supporting vertical rod and is matched with the combined top head on the previous group of supporting vertical rods. According to the stair pouring supporting structure, structural design capable of being safely and early disassembled and angle adjustment are specially carried out on the stair supporting structure, the building difficulty of a stair inclined running supporting structure is greatly reduced, dependence on the technician technology is reduced, the building efficiency and use stability of an inclined running supporting frame body are improved, and the construction cost is reduced. If safe early dismantling is carried out, 67% of main keels and 50% or more of secondary keels and inclined running templates of the inclined running plate of the staircase can be reduced, the construction cost of the staircase is reduced, and meanwhile the progress of the construction technology of the staircase is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of materials and equipment for formwork engineering in building construction, and in particular to a stair casting support structure. Background Art

[0002] In the construction of concrete stairs, it is necessary to build a supporting structure first, and then install the staircase inclined run formwork on the supporting structure. There are generally two commonly used supporting structures. One is to directly insert a U-shaped top support on the vertical supporting pole. This method results in the secondary keel supporting the inclined run board being built and the main keel being placed on the U-shaped top support. It is not suitable for the inclined run angle. Therefore, the rear end (the high part of the inclined run) of the two main keels (usually Φ48 round steel pipes) placed side by side on the U-shaped top support can only be padded with a wooden board with a thickness of about 32.4mm under the main keel, and the two main keels are tied with iron wire, and then the wooden squares and other secondary keels are placed in turn. Place the main keel of the inclined run on it, and finally use iron wire to tie and fix the secondary keel to the main keel of the inclined run to prevent the secondary keel from sliding down. Another support method is to use Φ48 steel pipe and movable fasteners as connecting horizontal tie rods, tilt the supporting vertical poles about 340 degrees, which is consistent with the slope of the inclined run. There must be no less than 2 such horizontal tie rods, and then insert a U-shaped top bracket into the top of the supporting vertical pole. After placing the main keel of the inclined runner board on the U-shaped top bracket, and then place the secondary keels such as the inclined runner wooden squares, tie and fix the secondary keel with iron wire to prevent it from sliding down.

[0003] Since the above method is relatively difficult, it requires experienced technicians to lead mid-level workers to build the stairs. In addition, this support method also has safety hazards, slow installation speed, and cannot be safely dismantled early. This results in a large amount of inclined running secondary purlins and inclined running formwork, causing the cost of stair construction to remain high. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present application provides a stair casting support structure, which is specially designed for the stair support structure to be safely dismantled early and has an angle adjustment, which greatly reduces the difficulty of building the stair inclined run support structure, reduces the dependence on technicians' technology, and improves the building efficiency and use stability of the inclined run support frame. If it is safely dismantled early, the main keel of the stair inclined run board can be reduced by 67%, and the secondary keel and the inclined run formwork can be reduced by more than 50%, which greatly improves the progress of the stair construction technology while reducing the construction cost of the stairs.

[0005] A stair casting support structure comprises a plurality of groups of support posts, combined headers arranged on the support posts, primary purlins and secondary purlins arranged on the combined headers, a stair formwork arranged on the secondary purlins, a transverse tie rod arranged between any two adjacent support posts, and a diagonal tie rod arranged on any support post and matched with the combined headers on the previous group of support posts.

[0006] Preferably, several groups of the supporting vertical rods are arranged in descending order from high to low, and the lengths of the supporting vertical rods in the same group are the same; the supporting vertical rod is composed of a rod body, a base arranged at the bottom of the rod body, and at least one buckle plate arranged on the outer side wall of the rod body.

[0007] Preferably, the combined top head is composed of an upper top head and a lower top head sleeved outside the upper top head.

[0008] Furthermore, the upper top head is composed of a threaded rod, a lower support spiral seat sleeved on the threaded rod and integrally fixed with the threaded rod by welding, an upper support spiral seat sleeved on the threaded rod and located above the lower support spiral seat, a secondary keel support seat obliquely arranged at the top end of the threaded rod, and an upper top head reinforcing piece fixed to both the secondary keel support seat and the threaded rod at the same time.

[0009] Preferably, the outer diameter of the threaded rod is smaller than the inner hole diameter of the rod body.

[0010] Preferably, a fixing groove that penetrates through the secondary keel support seat obliquely from front to back and has an opening at the upper part is arranged on the secondary keel support seat, and at least two groups of secondary keel fixing holes that horizontally penetrate through the fixing groove are also arranged on the secondary keel support seat; the inclination angle of the secondary keel support seat is 33° - 36°.

[0011] Still further, the lower top head is arranged above the upper support spiral seat, and the lower top head is composed of an obliquely arranged top support plate, a sleeve vertically arranged below the top support plate and having a middle hole penetrating through the top support plate, a front reinforcing piece arranged in front of the sleeve and integrally fixed with both the sleeve and the top support plate, a rear reinforcing piece arranged behind the sleeve and integrally fixed with both the sleeve and the top support plate, a fitting hole arranged on the rear reinforcing piece, and two groups of limiting baffles arranged on the upper side surface of the top support plate and located in front of and behind the sleeve respectively.

[0012] Preferably, the two groups of limiting baffles are arranged in parallel, and each group of limiting baffles is composed of two parallel limiting baffles; a main keel fixing hole of the plate is also arranged on the limiting baffle; the inclination angle of the top support plate is 33° - 36°.

[0013] Preferably, the horizontal cross bar is horizontally arranged on two buckle plates at the same height on two adjacent supporting vertical rods; one end of the inclined pull rod is fixed on the fitting hole, and the other end is fixed on a buckle plate of a supporting vertical rod located behind the fitting hole and having a height lower than that of the fitting hole.

[0014] In addition, fixing pins that respectively cooperate with the secondary keel fixing holes and the main keel fixing holes of the plate are respectively arranged on the upper top head and the lower top head.

[0015] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0016] The utility model is specifically designed for the stair support structure with a structure design and angle adjustment that allows for safe early disassembly, greatly reducing the construction difficulty of the inclined running support structure of the stairs, reducing the dependence on the skills of technicians, improving the construction efficiency and use stability of the inclined running support frame. If safe early disassembly is carried out, 67% of the main keels of the inclined running board of the stairs and more than 50% of the secondary keels and inclined running templates can be reduced, while reducing the construction cost of the stairs, greatly improving the progress of the construction technology of the stairs.

[0017] Some additional features of this application can be described below. Through the inspection of the following description and the corresponding drawings, or the understanding of the production or operation of the embodiments, some additional features of this application are obvious to those skilled in the art. The features disclosed in this application can be realized and achieved through the practice or use of various methods, means and combinations of the specific embodiments described below. Description of the Drawings

[0018] The drawings described herein are used to provide a further understanding of this application, form a part of this application, and the schematic embodiments and descriptions thereof are used to explain this application, and do not constitute a limitation to this application. In each figure, the same reference numerals represent the same components. Among them,

[0019] Figure 1 is a three-dimensional view of the utility model Figure 1 .

[0020] Figure 2 is a three-dimensional view of the utility model Figure 2 .

[0021] Figure 3 is a front view of the combined top head of the utility model.

[0022] Figure 4 is a three-dimensional view of the combined top head of the utility model.

[0023] Figure 5 is a three-dimensional view of the upper top head of the utility model.

[0024] Figure 6 is a front view of the lower top head of the utility model.

[0025] Figure 7 is a three-dimensional view of the lower top head of the utility model.

[0026] Figure 8 is a schematic structural view of the utility model with nail holes.

[0027] Description of reference numerals: 100, supporting vertical pole; 200, upper head; 201, threaded rod; 202, lower support screw base; 203, upper support screw base; 204, secondary keel support base; 205, upper head reinforcement piece; 206, secondary keel fixing hole; 300, lower head; 301, jacking plate; 302, front reinforcement piece; 303, sleeve; 304, rear reinforcement piece; 305, mating hole; 306, limit baffle; 307, main keel fixing hole for plate; 400, staircase formwork; 500, secondary keel; 600, main keel; 700, fixing bolt; 800, diagonal tie rod; 900, cross tie rod. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0029] It should be noted that if the terms "first", "second", etc. are involved in the description and claims of this application and the above-mentioned drawings, they are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so as to implement the embodiments of this application described here. In addition, if the terms "include" and "have" and any variations thereof are involved, the intention is to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] In this application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are involved, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation or be constructed and operated in a specific orientation.

[0031] Moreover, in addition to being used to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0032] In addition, in this application, terms such as "installation", "setting", "provided with", "connection", "connected", "socketed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will detail this application with reference to the drawings and in combination with the embodiments.

[0034] Embodiment 1

[0035] As Figure 1 、 2 shown, a stair-casting support structure includes several groups of support vertical poles 100, a combined top head arranged on the support vertical poles 100, a main keel 600 and a secondary keel 500 arranged on the combined top head, a stair formwork 400 arranged on the secondary keel 500, a cross tie rod 900 arranged between any two adjacent support vertical poles 100, and an inclined tie rod 800 arranged on any support vertical pole 100 and cooperating with the combined top head on the previous group of support vertical poles 100.

[0036] The main keel, the secondary keel, and the stair formwork can all use the existing technologies in the art. During actual use, the stair formwork is fixed on the secondary keel, and the main keel supports and reinforces the secondary keel below. The secondary keel and the main keel are arranged perpendicular to each other. Those skilled in the art can complete the setting and use of the above components without creative labor, so details will not be elaborated here.

[0037] Several groups of the support vertical poles 100 are arranged in order from high to low in groups, and the lengths of the support vertical poles 100 in the same group are the same; the support vertical pole 100 consists of a pole body, a base arranged at the bottom of the pole body, and at least one buckle plate arranged on the outer side wall of the pole body.

[0038] The pole body is a hollow tubular structure, the buckle plate is fixed at the corresponding position of the pole body by welding, and the heights of the buckle plates arranged on different pole bodies are fixed values.

[0039] As Figure 3 , 4 shown, the combined plug consists of an upper plug 200 and a lower plug sleeved outside the upper plug 200.

[0040] As Figure 5 shown, the upper plug 200 is composed of a threaded rod 201, a lower support screw base 202 sleeved on the threaded rod 201 and integrally fixed to the threaded rod 201 by welding, an upper support screw base 203 sleeved on the threaded rod 201 and located above the lower support screw base 202, a secondary keel support base 204 obliquely arranged at the top end of the threaded rod 201, and an upper plug reinforcement piece 205 fixed to both the secondary keel support base 204 and the threaded rod 201.

[0041] The upper support screw base and the lower support screw base can adjust their positions on the threaded rod by rotation. The function of the upper support screw base is to support the lower plug. When the position of the upper support screw base changes, the lower plug will also move with the upper support screw base. Therefore, the supporting force of the main keel fixed on the lower plug to the secondary keel can be adjusted by adjusting the position of the upper support screw base.

[0042] The outer diameter of the threaded rod 201 is smaller than the inner hole diameter of the rod body.

[0043] Since the outer diameter of the threaded rod is smaller than the inner hole diameter of the rod body, the threaded rod can be directly inserted into the rod body. By adjusting the position of the lower support screw base on the threaded rod, the purpose of adjusting the length of the threaded rod extending out of the rod body can be achieved.

[0044] A fixing groove that penetrates through the secondary keel support base 204 obliquely from front to back and has an opening at the upper part is provided on the secondary keel support base 204, and at least two groups of secondary keel fixing holes 206 that horizontally penetrate the fixing groove are also provided on the secondary keel support base 204; the inclination angle of the secondary keel support base 204 is 34.17°.

[0045] During use, the secondary keel is placed in the fixing groove and fixed to the secondary keel support base as a whole by a fixing pin.

[0046] As Figure 6 , 7, the lower top head 300 is arranged above the upper support screw base 203. The lower top head 300 is composed of an inclined support plate 301, a sleeve 303 vertically arranged below the support plate 301 and with a central hole penetrating through the support plate 301, a front reinforcing piece 302 arranged in front of the sleeve 303 and integrally fixed with both the sleeve 303 and the support plate 301, a rear reinforcing piece 304 arranged behind the sleeve 303 and integrally fixed with both the sleeve 303 and the support plate 301, a mating hole 305 arranged on the rear reinforcing piece 304, and two groups of limit baffles 306 arranged on the upper side of the support plate 301 and located in front of and behind the sleeve 303 respectively.

[0047] The two groups of limit baffles 306 are arranged in parallel, and each group of limit baffles 306 is composed of two parallel limit baffles 306; a main keel fixing hole 307 is also arranged on the limit baffle 306; the inclination angle of the support plate 301 is 33°.

[0048] During use, the main keel is placed into the grouped limit baffles and the secondary keel is integrally fixed with the limit baffles through a fixing pin.

[0049] The cross tie rod 900 is horizontally arranged on two buckle plates at the same height on two adjacent support vertical rods 100; one end of the inclined tie rod 800 is fixed on the mating hole 305, and the other end is fixed on a buckle plate of the support vertical rod 100 behind the mating hole 305 and at a height lower than the mating hole 305.

[0050] Fixing pins 700 respectively matching with the secondary keel fixing holes 304 and the main keel fixing holes 307 are arranged on the upper top head 200 and the lower top head 300.

[0051] Embodiment 2

[0052] The difference between this embodiment and Embodiment 1 is that the inclination angle of the secondary keel support seat 204 is 34.16°.

[0053] The inclination angle of the support plate 301 is 34.16°.

[0054] Embodiment 3

[0055] The difference between this embodiment and Embodiment 1 is that the inclination angle of the secondary keel support seat 204 is 36°.

[0056] The inclination angle of the support plate 301 is 36°.

[0057] Embodiment 4

[0058] As Figure 8As shown in the figure, the difference between this embodiment and Embodiment 1 is that at least two groups of iron nail holes penetrating the fixing groove horizontally are further provided on the secondary keel support seat. The purpose of setting the iron nail holes is that when the construction site uses wooden square timbers as the secondary keels, the product can still be effectively fixed to the secondary keels made of wooden square timbers. In order to enable it to be used in cooperation with the steel formwork with wooden strips, the distance between the central axis of the iron nail holes and the bottom of the fixing groove is set to 30 mm.

[0059] In addition, iron nail holes are also provided on the limit baffle. The purpose of setting them is that when the construction site uses wooden square timbers as the main keels, the product can still be effectively fixed to the main keels made of wooden square timbers. The distance between the central axis of the iron nail holes and the upper side of the top support plate is set to 30 mm.

[0060] It should be noted that all the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0061] In addition, the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosed content of the present invention, and these solutions also fall within the scope of the disclosure of the present invention and within the protection scope of the present invention. Those skilled in the art should understand that the description and drawings of the present invention are illustrative and do not constitute a limitation on the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stair-casting support structure, characterized in that, Including several groups of supporting vertical poles (100), a combined top head arranged on the supporting vertical poles (100), a main keel (600) and a secondary keel (500) arranged on the combined top head, a staircase formwork (400) arranged on the secondary keel (500), a cross tie rod (900) arranged between any two adjacent supporting vertical poles (100), and an inclined tie rod (800) arranged on any supporting vertical pole (100) and cooperating with the combined top head on the previous group of supporting vertical poles (100).

2. The staircase pouring support structure according to claim 1, characterized in that, Several groups of the described supporting vertical poles (100) are arranged in order from high to low by group, and the lengths of the supporting vertical poles (100) in the same group are the same; the supporting vertical poles (100) are composed of a rod body, a base arranged at the bottom of the rod body, and at least one buckle plate arranged on the outer side wall of the rod body.

3. The staircase pouring support structure according to claim 2, characterized in that, The combined top head is composed of an upper top head (200) and a lower top head (300) sleeved outside the upper top head (200).

4. A staircase pouring support structure according to claim 3, characterized in that, The upper top head (200) is composed of a threaded rod (201), a lower support spiral seat (202) sleeved on the threaded rod (201) and fixed to the threaded rod (201) by welding, an upper support spiral seat (203) sleeved on the threaded rod (201) and located above the lower support spiral seat (202), a secondary keel support seat (204) inclinedly arranged at the top end of the threaded rod (201), and an upper top head reinforcing plate (205) fixed to both the secondary keel support seat (204) and the threaded rod (201) at the same time.

5. A staircase pouring support structure according to claim 4, characterized in that, The outer diameter of the threaded rod (201) is smaller than the inner hole diameter of the rod body.

6. A staircase pouring support structure according to claim 5, characterized in that, A fixing groove is arranged on the secondary keel support seat (204), which penetrates through the secondary keel support seat (204) obliquely from front to back and has an opening at the upper part, and at least two groups of secondary keel fixing holes (206) horizontally penetrating the fixing groove are also arranged on the secondary keel support seat (204); the inclination angle of the secondary keel support seat (204) is 33° - 36°.

7. A staircase pouring support structure according to claim 6, characterized in that, The lower top head (300) is arranged above the upper support spiral seat (203), and the lower top head (300) is composed of an inclined top support plate (301), a sleeve (303) vertically arranged below the top support plate (301) and having a through hole in the middle, a front reinforcing plate (302) arranged in front of the sleeve (303) and fixed to both the sleeve (303) and the top support plate (301) at the same time, a rear reinforcing plate (304) arranged behind the sleeve (303) and fixed to both the sleeve (303) and the top support plate (301) at the same time, a mating hole (305) arranged on the rear reinforcing plate (304), and two groups of limiting baffles (306) arranged on the upper side surface of the top support plate (301) and located in front of and behind the sleeve (303) respectively.

8. A staircase pouring support structure according to claim 7, characterized in that, The two groups of limiting baffles (306) are arranged in parallel, and each group of limiting baffles (306) is composed of two mutually parallel limiting baffles (306); a main keel fixing hole (307) is also arranged on the limiting baffle (306); the inclination angle of the top support plate (301) is 33° - 36°.

9. A staircase pouring support structure according to claim 8, characterized in that, The horizontal tie rod (900) is horizontally arranged on two buckle plates at the same height on two adjacent support vertical rods (100); one end of the inclined tie rod (800) is fixed on the mating hole (305), and the other end is fixed on a buckle plate of the support vertical rod (100) behind the mating hole (305) and at a height lower than the mating hole (305).

10. A staircase pouring support structure according to claim 9, characterized in that, Fixing pins (700) are respectively arranged on the upper top head (200) and the lower top head (300) and are respectively matched with the secondary keel fixing holes (206) and the main plate keel fixing holes (307).

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