Opening and closing nine ratio frame

Abstract

The utility model discloses open and close type nine ratio frame relates to the support structure of frame, including the first support bar and second support bar of hinged connection, the first support bar hinged installation has first connecting part, the second support bar hinged installation has second connecting part, still be equipped with the support part between first connecting part and second connecting part, and the support part is connected with first connecting part and second connecting part threadedly simultaneously. The utility model has realized the angle adjustment between two support bars in nine ratio frame, has provided effective support for the mould of the construction vertical part is inverted trapezoidal shape structure, has played the key role to the convenient stripping of prefabricated part.

Description

Technical Field

[0001] This utility model relates to a support structure for a frame, and more specifically, to a folding nine-section frame. Background Technology

[0002] In the construction of precast reinforced concrete molds, the nine-ply bracket is a commonly used positioning and fastening component. Referring to publicly available document CN108442693A, the nine-ply bracket is primarily a right-angled triangular stable structure composed of two support rods and one diagonal brace. One support rod has a fixing screw hole for securing the nine-ply bracket to the mold, while the other support rod is vertically arranged to support the vertical portion of the mold. All three components are welded together. Figure 1 The diagram illustrates a common mold construction method for precast reinforced concrete components. As seen in the diagram, the vertical portion of the mold, built on a nine-ratio scaffold, is perpendicular to the surface of the slab, meaning the vertical portion of the cast precast component is perpendicular to the slab surface. During the actual demolding process, it is crucial to ensure that the demolding direction remains vertical throughout. Furthermore, because the mold is constantly in contact with the precast component, frictional resistance exists between the mold and the component, making demolding relatively difficult. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing an openable nine-section frame, which enables the adjustment of the angle between the two support rods and provides effective support for constructing a mold with an inverted trapezoidal vertical structure.

[0004] The opening and closing nine-part frame of this utility model includes a first support rod and a second support rod that are hinged together. A first connecting part is hingedly installed in the first support rod, and a second connecting part is hingedly installed in the second support rod. A support part is also provided between the first connecting part and the second connecting part, and the support part is threadedly connected to both the first connecting part and the second connecting part.

[0005] Preferably, the first connecting part includes a first sleeve and a first screw, the first sleeve and the first screw are fixedly connected, the first screw is screwed to one end of the support part, and the first sleeve is hinged to the first support rod through a hinge shaft.

[0006] Preferably, the second connecting part includes a second sleeve and a second screw, the second sleeve and the second screw are fixedly connected, the second screw is screwed to the other end of the support part, and the second sleeve is hinged to the second support rod through a hinge shaft.

[0007] Preferably, the support part consists of a support steel pipe and first nuts welded to both ends thereon, and the two first nuts are respectively threadedly connected to the first screw and the second screw in a one-to-one correspondence.

[0008] Preferably, the supporting steel pipe has an operating hole.

[0009] Preferably, the hinge shaft includes a bolt and a second nut screwed to its end, and a through hole is provided on the side wall of the support rod, and the bolt is inserted into the through hole and the sleeve in sequence.

[0010] Preferably, multiple through holes are provided on the side walls of both support rods.

[0011] Preferably, both the first support rod and the second support rod are made of channel steel, and the length of the first support rod is greater than the length of the second support rod.

[0012] Preferably, the first support rod and the second support rod have the same structure, and both the first support rod and the second support rod have a rounded corner structure at the end away from their hinge end.

[0013] Preferably, the bottom of both the first support rod and the second support rod is provided with multiple fixing screw holes.

[0014] Beneficial effects The advantages of this invention are as follows: Both support rods of the nine-part frame and the connection between the support rods and the support portion are hinged. Simultaneously, the support portion and the connecting portion are designed with a threaded connection, ensuring that the connecting portions at both ends of the support portion screw in to the same depth simultaneously when the support portion rotates. This allows for adjustment of the angle between the two support rods, resulting in a trapezoidal shape (narrower at the bottom and wider at the top) for the vertical portion of the mold constructed using this nine-part frame. This not only avoids the problem of frictional resistance between the mold and the preform in traditional demolding methods but also allows for a certain offset in the vertical lifting direction, significantly reducing demolding difficulty. Therefore, this nine-part frame plays a crucial role in facilitating the demolding of preforms. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the application of a traditional nine-section frame in precast component molds. Figure 2 This is a schematic diagram illustrating the application of the nine-ratio frame of this utility model in a precast component mold; Figure 3 This is a schematic diagram illustrating the application of the nine-ratio frame of this utility model at the cantilever stop in the mold of a cantilever beam precast component. Figure 4 This is a schematic diagram of the main structure of the nine-frame of this utility model; Figure 5 This is a top view of the second support rod of this utility model; Figure 6 This is a schematic diagram of the structure of the first connecting part of this utility model.

[0016] Wherein: 1-first support rod, 2-second support rod, 3-hinged shaft, 4-first connecting part, 5-support part, 6-second connecting part, 11-through hole, 12-fixing screw hole, 13-auxiliary hole, 41-first sleeve, 42-first screw, 51-support steel pipe, 52-first nut, 53-operating hole, 61-second sleeve, 62-second screw. Detailed Implementation

[0017] The present invention will be further described below with reference to embodiments, but this does not constitute any limitation on the present invention. Any limited modifications made by any person within the scope of the claims of the present invention are still within the scope of the claims of the present invention. See Figures 4-6 This utility model discloses a hinged nine-section frame, comprising a first support rod 1 and a second support rod 2, both hinged at one end using a semi-threaded bolt and nut structure. This design facilitates easy assembly and disassembly of the two support rods. Both support rods 1 and 2 are made of channel steel, which is easy to process and possesses high strength, meeting the support requirements for use as a template. One of the support rods is narrower than the other; more specifically, one of the channel steels can be housed within the groove of the other, facilitating the overall storage of the nine-section frame. Multiple fixing screw holes 12 are provided at the bottom of both support rods for fixing to an external foundation with screws. Auxiliary holes 13 are also provided on one side of the fixing screw holes 12, primarily for installing stators. In situations where screws cannot be inserted into the fixing screw holes 12, such as when screws are too large or the fixing screw holes 12 are blocked, steel nails can be driven into the template through the auxiliary holes 13 to secure the nine-section frame. Furthermore, the two support rods are of different lengths, specifically, the first support rod 1 is longer than the second support rod 2. This design allows the length of the nine-ply frame to be flexibly switched to suit different scenarios. Both the first support rod 1 and the second support rod 2 have rounded corners at the ends away from the hinge to prevent sharp edges from scratching operators.

[0018] In this embodiment, a first connecting part 4 is hingedly installed in the first support rod 1, and a second connecting part 6 is hingedly installed in the second support rod 2. A support part 5 is also provided between the first connecting part 4 and the second connecting part 6, and the support part 5 is threadedly connected to both the first connecting part 4 and the second connecting part 6. The hinged connections between the two connecting parts and their corresponding support rods, as well as the hinged connections between the first support rod 1 and the second support rod 2, provide the prerequisite for the rotation of the support part 5. When the support part 5 rotates, the connecting parts at both ends of the support part 5 will synchronously screw into the support part 5 to the same depth, thereby realizing the adjustment of the angle between the two support rods.

[0019] like Figure 1The image shows a common mold construction method for precast reinforced concrete components. In this method, the vertical portion of the cast precast component is completely vertical, perpendicular to the slab surface. During subsequent demolding, not only must the demolding direction remain vertical throughout, but the constant contact between the mold and the precast component creates frictional resistance, making demolding quite difficult.

[0020] like Figure 2 The diagram illustrates an application scenario of the nine-ply frame based on this invention. Because the angle between the two support rods of the redesigned nine-ply frame is adjustable, when building the mold, the vertical support rods in the nine-ply frame can be adjusted to an outward tilt angle, such as 2° (but not limited to this angle), and the template on one side of the nine-ply frame can be built at this angle. The resulting vertical section has an inverted trapezoidal shape, narrower at the bottom and wider at the top. That is, the shape of the precast part formed after casting remains unchanged compared to the shape formed by traditional mold casting, but its vertical section has an inverted trapezoidal shape. During demolding, when the precast part is lifted, its inverted trapezoidal shape creates a gap between the vertical section and the corresponding part in the mold. This gap increases as the precast part is lifted, thus avoiding the problem of constant frictional resistance between the mold and the precast part in traditional demolding methods. It also allows for a certain offset in the vertical lifting direction, greatly reducing the difficulty of demolding.

[0021] pass Figure 1 and Figure 2 The comparison shows that the key to the difficulty in demolding precast reinforced concrete components lies in the construction of the vertical slope, and the key to constructing this slope lies in the main supporting component, namely the nine-ratio frame. Therefore, the redesigned nine-ratio frame in this utility model is particularly important for the convenient demolding of precast components. After using this nine-ratio frame in the mold of precast reinforced concrete components, other parts of the mold do not need to be redesigned. During installation, other parts only need to be adapted to the inclination angle of the nine-ratio frame, which greatly reduces the difficulty and cost of mold modification.

[0022] like Figure 3 The diagram shows the application of the nine-ratio frame of this utility model at the cantilever stop in the mold of the cantilever beam precast component. In the mold of the cantilever beam precast component, the side adjacent to the nine-ratio frame can also be set with an inclination to the left in the figure, which is beneficial to the demolding of the precast component.

[0023] It should be noted that, compared with the traditional precast component mold structure, the precast component prefabricated using the nine-ratio frame mold based on this utility model has an inverted trapezoidal structure in its vertical part. However, because its tilt angle is small and does not affect the overall structure of the precast component, the precast component produced in this way also meets its usage requirements.

[0024] Regarding the specific structure of the first connecting part 4: The first connecting part 4 includes a first sleeve 41 and a first screw 42. The first sleeve 41 and the first screw 42 are fixedly connected by welding. The first screw 42 is screwed onto one end of the support part 5. The first sleeve 41 is located in the groove of the first support rod 1 and is hinged to the first support rod 1 through the hinge shaft 3, thus realizing the hinged installation of the first connecting part 4.

[0025] The second connecting part 6 includes a second sleeve 61 and a second screw 62. The second sleeve 61 and the second screw 62 are welded and fixed. The second screw 62 is screwed to the other end of the support part 5. The second sleeve 61 is located in the groove of the second support rod 2 and is hinged to the second support rod 2 through the hinge shaft 3, thus realizing the hinged installation of the second connecting part 6.

[0026] In this embodiment, the hinge shafts 3 used in the two connecting parts have the same structure, both including bolts and a second nut screwed to their ends. A through hole 11 is provided on the side wall of the support rod, and the bolt is inserted into the through hole 11 and the sleeve in sequence. The bolt can be a semi-threaded bolt.

[0027] Preferably, multiple through holes 11 are provided on the side walls of both support rods to make the installation of the support part 5 more flexible.

[0028] Regarding the structure of the support part 5, in this embodiment, the support part 5 consists of a support steel pipe 51 and nuts 52 welded to both ends thereon. A first screw 42 is threadedly connected to the nut 52 at one end of the support part 5, and a second screw 62 is threadedly connected to the nut 52 at the other end of the support part 5. During installation, the first screw 42 and the second screw 62 are respectively screwed into the nuts 52 at both ends of the support part 5, and then the connecting part is assembled onto the support rod. By rotating the support steel pipe 51, the screwing depth of the two screws can be adjusted simultaneously, thereby changing the support angle of the nine-ply frame support surface, which improves the foundation for changing the angle of the vertical part of the mold and achieving better demolding.

[0029] Preferably, an operating hole 53 is provided in the middle of the supporting steel pipe 51. When rotating the supporting part 5, the tool can be inserted into the operating hole 53 to facilitate the rotation operation of the supporting part 5. Alternatively, the rotation operation of the supporting part 5 can be achieved by the wrench engaging the nut 52.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A hinged nine-section frame, characterized in that, The first support rod (1) and the second support rod (2) are hinged together. The first support rod (1) is hingedly fitted with a first connecting part (4), and the second support rod (2) is hingedly fitted with a second connecting part (6). A support part (5) is also provided between the first connecting part (4) and the second connecting part (6). The support part (5) is threadedly connected to both the first connecting part (4) and the second connecting part (6) so that the vertical support rod in the nine-ply frame can be adjusted to an outward tilt angle so that the vertical part of the mold is narrow at the bottom and wide at the top, forming an inverted trapezoidal shape. The bottom of the first support rod (1) and the second support rod (2) are provided with multiple fixing screw holes (12), and an auxiliary hole (13) is provided on one side of each fixing screw hole (12).

2. The opening and closing nine-section frame according to claim 1, characterized in that, The first connecting part (4) includes a first sleeve (41) and a first screw (42). The first sleeve (41) and the first screw (42) are fixedly connected. The first screw (42) is screwed onto one end of the support part (5). The first sleeve (41) is hinged to the first support rod (1) through the hinge shaft (3).

3. The opening and closing nine-section frame according to claim 1, characterized in that, The second connecting part (6) includes a second sleeve (61) and a second screw (62). The second sleeve (61) and the second screw (62) are fixedly connected. The second screw (62) is screwed to the other end of the support part (5). The second sleeve (61) is hinged to the second support rod (2) through the hinge shaft (3).

4. The opening and closing nine-section frame according to claim 3, characterized in that, The support part (5) consists of a support steel pipe (51) and first nuts (52) welded to its two ends. The two first nuts (52) are respectively threadedly connected to the first screw (42) and the second screw (62).

5. The opening and closing nine-section frame according to claim 4, characterized in that, An operating hole (53) is provided in the supporting steel pipe (51).

6. The folding nine-section frame according to claim 2 or 3, characterized in that, The hinge shaft (3) includes a bolt and a second nut screwed to its end. A through hole (11) is provided on the side wall of the support rod. The bolt is inserted into the through hole (11) and the sleeve in sequence.

7. The opening and closing nine-section frame according to claim 6, characterized in that, Multiple through holes (11) are provided on the side walls of both support rods.

8. The opening and closing nine-section frame according to claim 1, characterized in that, Both the first support rod (1) and the second support rod (2) are made of channel steel, and the length of the first support rod (1) is greater than the length of the second support rod (2).

9. The opening and closing nine-section frame according to claim 1, characterized in that, Both the first support rod (1) and the second support rod (2) have rounded corners at the ends away from their hinge ends.

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