Concrete shaft adjustable support platform

Abstract

The utility model is suitable for the field of building construction equipment, provides a concrete shaft adjustable support platform, include: bearing platform, support frame is connected with bearing platform, including by the bottom surface of bearing platform downward extension's main frame and install on the height limit support body of main frame, the height limit support body can rotate and install on the main frame, and have a bottom surface, the height limit support body is positioned by a certain positioner and is positioned to angle positioning, to make the bottom surface support in the ladder mouth platform, by this, the utility model discloses through the height limit support body of can rotate, realizes the state switching between work and non - work, can: 1, not be subjected to length limit, namely can guarantee enough lateral support distance, 2, the above -mentioned component in non - work state can avoid causing damage to the surface of the concrete that has been poured.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment, and in particular to an adjustable support platform for concrete shafts. Background Technology

[0002] An adjustable support platform for concrete shafts is a temporary support system used in building construction (especially in confined spaces such as vertical shafts, elevator shafts, and ventilation shafts). It is used to construct an operating platform at a predetermined location within the shaft, making it convenient for operators to step on it.

[0003] The patent document number 202223206850.6, entitled "Standardized Lifting Elevator Shaft Operating Platform," discloses a support platform for installation inside an elevator shaft. The platform includes an elevator shaft body and multiple platforms. An operating platform 1 is located within the inner cavity of the elevator shaft body. Operating platform 2 is fitted onto the front and rear of operating platform 1, sliding on the surface of operating platform 1. Fixing rods are installed on both sides of the bottom of the front operating platform 2. A U-shaped plate (i.e., a lateral support) is installed on the opposite side of the two fixing rods. Bolt holes are provided on one side of the U-shaped plate. Support blocks are fixedly connected to the front and rear of the opposite sides of the two U-shaped plates. During operation, the U-shaped plate (i.e., the lateral support) supports the shaft opening to assist in the vertical positioning of the liftable operating platform within the reinforced concrete shaft.

[0004] However, the lateral support (i.e., the U-shaped plate mentioned above) has the following problems in restricting the displacement of the operating platform: if the lateral support is too short, the fixing effect is poor; if the lateral support is too long, it will affect the overall lifting efficiency of the operating platform and easily damage the surface of the poured concrete.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] To address the aforementioned shortcomings, the purpose of this utility model is to provide an adjustable support platform for concrete shafts, which, through a rotatable height-limiting support body, enables switching between working and non-working states, and can: 1. It is not limited by the length of the lateral support, which means that sufficient lateral support distance can be guaranteed; 2. When the above-mentioned components are not in operation, they can avoid damaging the surface of the poured concrete.

[0007] To achieve the above objectives, this utility model provides an adjustable support platform for concrete shafts, comprising: a bearing platform; and a support frame connected to the bearing platform, including a main frame extending downward from the bottom surface of the bearing platform and a height-limiting support body installed on the main frame; the height-limiting support body is rotatably installed on the main frame and has a bottom surface; the height-limiting support body is angularly positioned by a positioning element so that its bottom surface supports the ladder platform.

[0008] According to the adjustable support platform for concrete shafts of this utility model, the bottom surface of the height limiting support extends perpendicularly to the side of the ladder platform; the height limiting support can switch angles in a vertical plane.

[0009] According to the adjustable support platform for concrete shafts of this utility model, the height limiting support body is provided with a hinge part on the end point or side near the main frame, and it is installed on the main frame.

[0010] According to the adjustable support platform for concrete shaft of this utility model, the main frame is provided with a rotating shaft sleeve; the hinge part is a rotating sleeve, which is rotatably sleeved on the outside of the rotating shaft, and the rotating shaft sleeve is internally screwed with a positioning bolt; during positioning work, the bolt cap is pressed against the side end of the rotating sleeve.

[0011] According to the adjustable support platform for concrete shafts of this utility model, the height limiting support body is a tripod.

[0012] According to the adjustable support platform for concrete shaft of this utility model, the cantilever end or near the cantilever end of the height limiting support body is connected to a first strut; the other end of the first strut is connected to the main frame, and the three form a triangular structure.

[0013] According to the adjustable support platform for concrete shafts of this utility model, the main frame is provided in several groups, and each group of main frames is equipped with a height limiting support.

[0014] According to the present invention, an adjustable support platform for concrete shafts has a positioning plate that can be detachably inserted between adjacent height limiting support bodies.

[0015] This utility model provides an adjustable support platform for concrete shafts, comprising: a load-bearing platform, which is a square platform composed of four sets of movable branch platforms. The ends of adjacent branch platforms form a nested structure, allowing the load-bearing platform to be adjusted in both length and width to adapt to different lengths and widths of shaft environments. After the length and width of the load-bearing platform are adjusted, it is positioned using positioning bolts. After positioning, the side of the load-bearing platform will be in close contact with the inner wall of the shaft. During operation, the load-bearing platform is generally set perpendicular to the extension direction of the shaft, i.e., the load-bearing platform is horizontally positioned. A support frame is connected to the load-bearing platform and primarily supports it, improving the load-bearing strength of the load-bearing platform. The support frame includes a main frame extending downwards from the bottom of the load-bearing platform, an auxiliary support component for the load-bearing platform mounted on the main frame, and a height-limiting support body; its ends can be bolted or directly welded to the load-bearing platform. The auxiliary support component for the load-bearing platform includes second struts whose ends are respectively connected to the main frame and the load-bearing platform. The ends of the second struts are hinged to the main frame and the load-bearing platform, forming a triangular structure with relatively stable support strength. When not in operation, the height-limiting support is rotatable or positioned to overlap with the main frame (in this state, the height-limiting support is completely within the coverage area of ​​the carrying platform), thus avoiding interference with the movement and operation of the carrying platform due to the loss of its supporting function. This utility model, through a rotatable height-limiting support, achieves the switching between working and non-working states, and can: It is not limited by length, which means it can guarantee sufficient lateral support distance; 2. When the above-mentioned components are not in operation, they can avoid damaging the surface of the poured concrete. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the disassembled part of the structure of this utility model; Figure 2 This is a schematic diagram of the adjustment of the support platform of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a diagram of the internal structure of a nested structure; In the diagram, 1-bearing platform, 11-branch platform, 2-main frame, 20-support frame, 21-bottom surface, 3-height limiting support, 4-positioning bolt, 5-positioning plate, 6-second strut, 7-auxiliary support frame, 8-height adjustment structure, 31-cantilever end, 32-first strut. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] See Figure 1 , Figure 2 and Figure 3 This utility model provides an adjustable support platform for concrete shafts, which includes: See Figure 2 and Figure 3 The supporting platform 1 is a square platform, which is composed of four sets of movable branch platforms 11. The ends of adjacent branch platforms 11 form a nested structure, which includes an outer sleeve 110 located at the end of one of the mating parts and an inner sleeve rod 111 located inside it at the end of another mating part. Figure 4As shown in the figure, the outer casing is generally a sleeve structure, with the inner sleeve rod extending into the outer casing and positioned by positioning bolts. This allows the support platform 1 to be adjusted in length and width (as shown in the figure) to adapt to different lengths and widths of the stairwell environment. It should be explained that after the length and width of the support platform 1 are adjusted, it is positioned using positioning bolts. Specifically, the nested end of the branch platform 11 has several positioning holes along the insertion direction. The positioning bolts are selected from the corresponding positioning holes for locking and fixing. After positioning, the side of the support platform 1 will be in contact with the inner wall of the stairwell. During operation, the support platform 1 is generally set perpendicular to the extension direction of the stairwell, i.e., the support platform 1 is horizontally set.

[0022] The support frame 20 is connected to the bearing platform 1 and mainly supports it to improve the bearing strength of the bearing platform 1. The support frame 20 includes a main frame 2 extending downward from the bottom surface of the bearing platform 1 and a bearing platform auxiliary support component and a height limiting support body 3 installed on the main frame 2. The main frame 2 is made of I-beams, and its ends can be fixed to the bearing platform 1 by bolts or directly welded.

[0023] Preferably, the main frame 2 is provided with a height adjustment structure 8, which can be the nested structure described above, so that the length of the main frame 2 can be adjusted as needed, and further realize the adjustment of the height distance between the bearing platform 1 and the wellhead.

[0024] Of course, in order to improve the support strength of the support frame 20, the main frame 2 can be provided with several sets, and each set of main frame 2 is equipped with a height limiting support 3.

[0025] See Figure 1 and Figure 3 The auxiliary support assembly for the bearing platform includes second support rods 6, with their ends respectively connected to the main frame 2 and the bearing platform 1. The ends of the second support rods 6 are hinged to the main frame 2 and the bearing platform 1, forming a triangular structure with relatively stable support strength. Simultaneously, an auxiliary support frame 7 is provided near the middle of the second support rods 6 to optimize their support strength. This auxiliary support frame 7 is also a side-extendable frame structure, with an adjustable nested structure and bolted for positioning. The movement of the second support rods 6 and the adjustment of the auxiliary support frame 7 are both designed to adapt to the bearing platform 1. The auxiliary support frame 7 has an upper hinged movable sleeve, within which the second support rods 6 are fitted.

[0026] The height limiting support 3 is rotatably mounted on the main frame 2 and has a bottom surface 21; the movable height limiting support 3 allows it to switch between working and non-working states. When in operation, the height limiting support 3 is positioned at an angle by a positioning element so that its bottom surface 21 is supported on the ladder platform. When not in operation, the height limiting support 3 is in a rotatable state or positioned to coincide with the main frame 2 (in this state, the height limiting support 3 is completely within the coverage area of ​​the bearing platform 1), thus avoiding affecting the movement and operation of the bearing platform 1 due to the loss of its supporting function.

[0027] To ensure the effective support area of ​​the height limiting support 3, that is, to ensure that the bottom surface 21 and the ladder platform have sufficient support area, the bottom surface 21 of the height limiting support 3 extends perpendicularly to the side of the ladder platform; at the same time, the height limiting support 3 switches angles in the vertical plane.

[0028] The height limiting support 3 is a tripod, which ensures good support strength. A hinge is provided on the end point or side of the height limiting support 3 near the main frame 2, and it is installed on the main frame 2. The main frame 2 is provided with a rotating shaft sleeve; the hinge is a rotating sleeve that rotatably fits around the rotating shaft, and the rotating shaft sleeve is internally screwed with a positioning bolt 4.

[0029] During positioning, the bolt cap of bolt 4 presses against the side end of the rotating sleeve, and the rotating sleeve is clamped by the side wall of the main frame 2 and the bolt cap of bolt 4, achieving its rotational positioning effect. Of course, to optimize the rotation effect, bearings can be installed or lubricating oil can be applied between the interlocking parts.

[0030] The above-mentioned hinged connection method can be replaced by other connection methods, such as using a rotation damper to connect the height limiting support 3.

[0031] To ensure the positioning and support effect of the height limiting support 3 on the entire support platform, a dual positioning system can be constructed based on the aforementioned angle positioning. Specifically, a first support rod 32 is connected to the cantilever end 31 or a position near the cantilever end 31 of the height limiting support 3; the other end of the first support rod 32 is connected to the main frame 2, forming a triangular structure. Furthermore, based on the above, a positioning plate 5 can be detachably inserted between adjacent height limiting supports 3.

[0032] In summary, this utility model provides an adjustable support platform for concrete shafts, comprising: a load-bearing platform, which is a square platform composed of four sets of movable branch platforms. The ends of adjacent branch platforms form a nested structure, allowing the load-bearing platform to be adjusted in both length and width to adapt to different lengths and widths of shaft environments. After the length and width of the load-bearing platform are adjusted, it is positioned using positioning bolts. After positioning, the side of the load-bearing platform will be in contact with the inner wall of the shaft. During operation, the load-bearing platform is generally set perpendicular to the extension direction of the shaft, i.e., the load-bearing platform is horizontally positioned. A support frame connects to the load-bearing platform and primarily supports it, improving the load-bearing strength of the load-bearing platform. The support frame includes a main frame extending downwards from the bottom of the load-bearing platform, and auxiliary support components and a height-limiting support body installed on the main frame; its ends can be bolted or directly welded to the load-bearing platform. The auxiliary support components of the load-bearing platform include second struts whose ends are respectively connected to the main frame and the load-bearing platform. The ends of the second struts are hinged to the main frame and the load-bearing platform, forming a triangular structure with relatively stable support strength. When not in operation, the height-limiting support is rotatable or positioned to overlap with the main frame (in this state, the height-limiting support is completely within the coverage area of ​​the carrying platform), thus avoiding interference with the movement and operation of the carrying platform due to the loss of its supporting function. This utility model, through a rotatable height-limiting support, achieves the switching between working and non-working states, and can: It is not limited by length, which means it can guarantee sufficient lateral support distance; 2. When the above-mentioned components are not in operation, they can avoid damaging the surface of the poured concrete.

[0033] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. An adjustable support platform for a concrete shaft, characterized in that, include: Platform; A support frame, connected to a load-bearing platform, includes a main frame extending downward from the bottom of the load-bearing platform and a height-limiting support installed on the main frame; The height limiting support is rotatably mounted on the main frame and has a bottom surface; the height limiting support is positioned by a positioning element to be angularly positioned so that the bottom surface supports the ladder platform.

2. The adjustable support platform for concrete shafts according to claim 1, characterized in that, The bottom surface of the height limiting support extends perpendicularly to the side of the ladder platform. The height limiting support body can switch angles in a vertical plane.

3. The adjustable support platform for concrete shafts according to claim 1, characterized in that, The height limiting support is provided with a hinged part on the end point or side near the main frame, and it is installed on the main frame.

4. The adjustable support platform for concrete shafts according to claim 3, characterized in that, The main frame is equipped with a rotating shaft sleeve; The hinge part is a rotating sleeve, which is rotatably sleeved on the outside of the rotating shaft. The rotating shaft sleeve is internally screwed with a positioning bolt. During positioning, the bolt cap is pressed against the side end of the rotating sleeve.

5. The adjustable support platform for concrete shafts according to claim 1, characterized in that, The height limiting support is a tripod.

6. The adjustable support platform for concrete shafts according to claim 1, characterized in that, The height limiting support is connected to a first strut at or near the cantilever end; The other end of the first strut is connected to the main frame, and the three together form a triangular structure.

7. The adjustable support platform for concrete shafts according to claim 1, characterized in that, The main frame is provided in several groups, and each group of main frames is equipped with a height limiting support.

8. The adjustable support platform for concrete shafts according to claim 7, characterized in that, A positioning plate is detachably inserted between adjacent height limiting supports.

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