Resettable fixing device and liftable construction platform

Abstract

The utility model discloses a resettable fixing device and a liftable construction platform, which are used for fixing the construction platform on a main body structure of a building, and comprise a connecting piece vertically and fixedly arranged on the edge of a bottom plate of the construction platform; the fixing piece is transversely hinged to the connecting piece through a rotating shaft, the lower end face of the first end of the fixing piece abuts against the main body structure, and the upper end face of the first end of the fixing piece abuts against a limiting piece fixedly installed on the connecting piece; one end of the reset piece is connected with the other end of the fixing piece, and the other end of the reset piece is connected with the bottom plate so that the fixing piece can be restored to the initial position. According to the technical scheme, on the basis of fully ensuring the safety of related personnel, the problems of large steel consumption, high operation difficulty, high labor intensity and low construction efficiency are solved, the effects of reducing the labor intensity and workload of constructors, reducing the operation difficulty and improving the construction efficiency are achieved, the effects of saving manpower, material resources and financial resources can also be achieved, and the construction cost is reduced. And the purpose of improving the economic benefits of enterprises is finally achieved.

Description

Technical Field

[0001] This utility model application belongs to the technical field of construction platforms in vertical shafts, specifically relating to a resettable fixing device and a liftable construction platform. Background Technology

[0002] When constructing in vertical shaft environments such as light wells and courtyards, the construction platform at the horizontal opening is crucial.

[0003] Currently, two main methods are used for constructing platforms:

[0004] The first method: using a cantilevered scaffolding working platform.

[0005] The structure is constructed using steel pipes, fasteners, and I-beams.

[0006] The disadvantages of this method are that the construction platform needs to be continuously erected along with the progress of the main construction, and each erection cannot exceed 15 meters. Later, the steel channel holes need to be repaired, which can easily cause leakage. The construction efficiency is relatively slow, a large amount of steel pipe fasteners are required, a lot of manpower is wasted, and the connection between processes must be very timely.

[0007] The second type: uses a telescopic, liftable protective platform.

[0008] During the construction of the main structure, bolts are pre-embedded in the wall to fix the steel plate. Legs for fixing the protective platform are welded onto the steel plate. The square steel keel at the bottom of the protective platform is connected to the legs. A steel structure frame is welded on the base, and the protective platform is welded onto the steel structure frame.

[0009] The disadvantages of this method are that the supports need to be pre-embedded and raised layer by layer during the main construction, the positioning of the supports is difficult, the amount of material used in the upper steel structure frame is large, and the main nodes are welded and cannot be disassembled for reuse, which increases the amount of welding work.

[0010] Therefore, there is an urgent need to design a new platform for construction inside shafts to solve the technical problems faced by the existing construction platforms during the erection process. While ensuring the safety of relevant personnel, the platform should reduce the labor intensity and workload of construction workers, reduce the difficulty of operation, and improve construction efficiency. At the same time, it can also save manpower, material resources, and financial resources, and ultimately improve the economic benefits of enterprises. Utility Model Content

[0011] This utility model application discloses a resettable fixing device and a liftable construction platform to solve the problems existing in the prior art.

[0012] To achieve the above objectives, the first aspect of this utility model provides a resettable fixing device for fixing a construction platform to the main structure of a building, comprising: a connector, vertically fixed to the edge of the base plate of the construction platform; a fixing member, laterally hinged to the connector via a pivot, the lower end face of the first end of the fixing member abutting against the main structure, and the upper end face of the first end of the fixing member abutting against a limiting member fixed to the connector; and a reset member, one end of which is connected to the other end of the fixing member, and the other end of which is connected to the base plate, for restoring the fixing member to its initial position.

[0013] Furthermore, the fastener has a rectangular structure and a through hole for mounting the rotating shaft.

[0014] Furthermore, the connecting member is a pair of channel steels with openings facing each other, and the waist plates of the channel steels are respectively symmetrically provided with shaft holes that match the rotating shaft; the fixing member is installed between the channel steels.

[0015] Furthermore, the waist plate of the channel steel is symmetrically provided with limiting holes for inserting limiting components, and the limiting holes are located obliquely above the shaft hole.

[0016] Furthermore, the reset element is a tension spring.

[0017] The second aspect of this disclosure provides a liftable construction platform, including a base plate, a plurality of vertical keels fixedly mounted at intervals on the base plate, a platform operation board installed on the top of the vertical keels, and the aforementioned repositionable fixing devices symmetrically mounted on the base plate; a transverse keel is fixedly mounted between the base plate and the vertical keels; and the vertical keels and the platform operation board are sequentially fixedly mounted on the platform operation board.

[0018] Furthermore, the transverse keel is an I-beam, and several vertically arranged first connecting pieces are fixedly installed at intervals on the side end of the upper flange of the transverse keel for connecting with the vertical keel by bolts.

[0019] Furthermore, each of the vertical keels below the platform control panel is equipped with a second connecting piece, and the second connecting piece is connected to the top plate by bolts to the first diagonal brace tube.

[0020] Furthermore, a third connecting piece is fixedly mounted on the side of each connector, and the second connecting piece located below is connected to the third connecting piece by bolts to the second diagonal brace tube.

[0021] Furthermore, the base plate has a rectangular structure, and hinged flaps are installed on the outer edges of the base plate.

[0022] The advantages and positive effects of this utility model are:

[0023] 1. The resettable fixing device disclosed in this utility model application eliminates the need for repeated installation, disassembly, and reinstallation of a construction platform that, compared to existing technologies, requires constant reassembly and disassembly as the main structure's construction progresses, unlike cantilevered scaffolding platforms. During the lifting process, the platform automatically rotates downwards to avoid contact with the main structure, and automatically returns to its original position after completely passing over it, thus securing the platform firmly to the main structure. Furthermore, compared to telescopic liftable protective platforms, it eliminates the need for pre-embedded supports and disassembly, reducing workload and significantly lowering safety risks. Additionally, this solution reduces steel consumption by approximately 40% compared to cantilevered scaffolding, making it easier to operate and install, and ensuring safety and reliability.

[0024] In summary, this technical solution, while fully ensuring the safety of relevant personnel, solves the problems of large steel consumption, high operational difficulty, high labor intensity, and low construction efficiency. It achieves the technical effects of reducing the labor intensity and workload of construction workers, lowering operational difficulty, and improving construction efficiency. Simultaneously, it also saves manpower, material resources, and financial resources, ultimately improving the economic benefits of the enterprise. Furthermore, the structure is simple and easy to operate.

[0025] 2. The resettable fixing device disclosed in this utility model application not only limits the fixing component, ensuring that the construction platform can be stably supported at the horizontal opening, but also features a limiting hole for installing the limiting component, making the limiting component a detachable part, thus allowing the construction platform to be lowered.

[0026] 3. The lifting construction platform disclosed in this utility model application has the beneficial effects of the aforementioned resettable fixing device since it includes the above-mentioned resettable fixing device, which will not be repeated here.

[0027] 4. The height-adjustable construction platform disclosed in this utility model application uses detachable bolts to connect the horizontal and vertical keels, the platform operation panel and the vertical keel, and the second diagonal bracing pipe between the connector and the vertical keel. This allows the construction platform to be disassembled after use, facilitating subsequent project assembly and use, avoiding damage to the steel by cutting, reducing the amount of cutting work, and making it safer and more reliable.

[0028] 5. The lifting construction platform disclosed in this utility model application is equipped with a second and a third inclined support pipe, which strengthens the structural strength of the operating platform, making it more robust and further improving its safety.

[0029] 6. The liftable construction platform disclosed in this utility model application has hinged flaps on the outer edges of the base plate, which ensures the safety of on-site construction personnel and further improves safety.

[0030] 7. The technical solution disclosed in this utility model application has the advantages of simple structure, detachability, firm connection, strong sealing, stable performance, easy operation, easy manufacturing, safety and reliability, lifting capability, reusability, and saving manpower and material resources. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a repositionable fixing device provided in the first aspect of this utility model application;

[0032] Figure 2 This is a perspective view of the connectors in this device;

[0033] Figure 3 This is a three-dimensional view of the fixing components in this device;

[0034] Figure 4 This is a diagram showing the usage status of this device;

[0035] Figure 5 This is a diagram showing the state of the device during lifting;

[0036] Figure 6 A front view of a liftable construction platform provided in the second aspect of this utility model application;

[0037] Figure 7 Internal top view of this construction platform;

[0038] Figure 8 This is a schematic diagram of the connection structure between the horizontal and vertical keels of this construction platform.

[0039] Explanation of reference numerals in the attached figures

[0040] 1. Connecting component; 101. Limiting hole; 102. Shaft hole; 2. Fixing component; 201. Through hole; 3. Reset component; 4. Base plate; 5. Rotating shaft; 6. Limiting component; 7. Main structure; 8. Lifting ring; 9. Platform operation panel; 10. First diagonal brace tube; 11. Second connecting piece; 12. Vertical keel; 13. Horizontal keel; 14. Second diagonal brace tube; 15. Flip plate; 16. Third diagonal brace tube; 17. Third connecting piece; 18. First connecting piece. Detailed Implementation

[0041] The specific embodiments of this utility model application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this disclosure.

[0042] In the technical solutions disclosed in this utility model application, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" generally refer to those defined based on the drawing direction of the corresponding figures, while "inner" and "outer" refer to those inside and outside relative to the outline of the component or structure itself. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not have sequential or importance implications. Additionally, in the description with reference to the figures, the same reference numerals in different figures denote the same element.

[0043] According to the first aspect of this utility model application, a repositionable fixing device is disclosed, such as... Figure 1 , Figure 4 , Figure 5 As shown, it includes:

[0044] Connector 1 is vertically fixed to the edge of the construction platform base plate 4;

[0045] The fixing member 2 is laterally hinged to the connecting member 1 via the rotating shaft 5. The lower end face of the first end of the fixing member 2 abuts against the main structure 7, and the upper end face of the first end of the fixing member 2 abuts against the limiting member 6 fixed on the connecting member 1.

[0046] The reset component 3 has one end connected to the other end of the fixing component 2 and the other end connected to the base plate 4, and is used to restore the fixing component 2 to its initial position.

[0047] In the above technical solution, the construction platform equipped with the repositionable fixing device is placed at the horizontal opening of the main structure 7, such as... Figure 4 As shown, the fixing element 2 of this fixing device abuts against the main structure 7. After fixing and installation, construction operations can begin. After the construction of this floor is completed, there is no need to remove this repositionable fixing device; simply lift the construction platform directly. Figure 5 As shown, when the resettable fixing device is subjected to obstruction from the upper floor slab of the main structure 7 during lifting, it will deform (specifically, the outer end of the fixing member 2 will rotate and deform due to the abutment force from the lower end face of the upper floor slab) to adapt to the space of the horizontal opening, thereby effectively avoiding the obstruction of the upper floor slab and allowing the construction platform to smoothly pass through the upper horizontal opening to the next floor; after the construction platform has been completely lifted to the next floor, the resettable fixing device will automatically restore the fixing member 2 to its initial position by relying on the reset member 3, without manual operation; then the construction platform equipped with the resettable fixing device will be placed at the horizontal opening of the new floor, as shown. Figure 4As shown, the fastener 2 is abutted against the main structure 7. After the fastener is fixed, the construction operation of the new layer can be carried out. When the construction of the new layer is completed and the construction of the next layer is to be carried out, the above operation can be repeated. Among them, the rotating shaft 5 can be bolts, pins, or high-strength bolts or pins, and the limiting part 6 can be bolts, pins, square pins, or high-strength bolts or pins. No specific limitation is made here.

[0048] Compared to existing technologies, this design eliminates the need for repeated installation, disassembly, and reinstallation of cantilevered scaffolding platforms as construction progresses with the main structure 7. When the platform encounters the main structure 7 during lifting, it automatically moves downwards to avoid it. After passing the main structure 7, it automatically resets, securing the platform firmly to the main structure 7. Furthermore, compared to telescopic liftable protective platforms, it eliminates the need for pre-embedded supports and disassembly, reducing workload and significantly lowering safety risks. In addition, this design optimizes the structure, reducing steel consumption by 40% compared to traditional methods, making it easier to operate and install, and ensuring safety and reliability.

[0049] In summary, this technical solution, while fully ensuring the safety of relevant personnel, achieves the technical effects of reducing the labor intensity and workload of construction workers, lowering the operational difficulty, and improving construction efficiency. At the same time, it can also save manpower, material resources, and financial resources, ultimately achieving the goal of improving the economic benefits of enterprises.

[0050] In this embodiment, as Figure 3 , Figure 4 , Figure 5 As shown, the fastener 2 has a rectangular structure and a through hole 201 for mounting the rotating shaft 5.

[0051] In some embodiments, such as Figure 1 , Figure 2 As shown, the connecting member 1 is a pair of channel steels with openings facing each other, and the waist plates of the channel steels are respectively symmetrically provided with shaft holes 102 that match the rotating shaft 5; the fixing member 2 is installed between the channel steels.

[0052] In some specific embodiments, such as Figure 2 , Figure 4As shown, the waist plate of the channel steel is symmetrically provided with limiting holes 101 for mounting the limiting component 6. The limiting holes 101 are located diagonally above the shaft hole 102, that is, the position of the limiting holes 101 is closer to the outer side of the construction platform bottom plate 4 than the shaft hole 102, so as to ensure that the limiting component 6 can properly limit the fixing component 2 and ensure that the construction platform can be stably supported at the horizontal opening. At the same time, the limiting holes 101 are designed to make the limiting component 6 a detachable part, which also allows the construction platform to be lowered: the limiting component 6 is removed from the limiting hole 101, and the construction platform is lowered by the tower crane. This process is similar to the lifting process. When the fixing component 2 encounters the main structure 7, it will automatically avoid it by moving upward without the obstruction of the limiting component 6. After passing the main structure 7 and reaching the next level, it can be automatically reset by the reset component 3, so that the construction platform is finally fixedly supported on the platform of the next level main structure 7, and the descent operation is finally realized. After completion, the limiting component 6 can be reinstalled on the connecting component 1.

[0053] In other embodiments, such as Figure 1 , Figure 4 , Figure 5 As shown, the reset component 3 is a tension spring.

[0054] Based on the above technical solutions, this disclosure also provides a liftable construction platform, such as... Figure 6 , Figure 7 As shown, the system includes a base plate 4, on which several vertical keels 12 are fixedly mounted at intervals. A platform operation plate 9 is installed on the top of the vertical keels 12. The aforementioned repositionable fixing device is symmetrically installed on the base plate 4. A horizontal keel 13 is fixed between the base plate 4 and the vertical keels 12. The vertical keels 12 and the platform operation plate 9 are fixedly mounted on the platform operation plate 9 in sequence, forming a multi-layer operation.

[0055] Since the liftable construction platform provided in this disclosure has all the features of the aforementioned resettable fixing device, it will not be described again here to avoid repetition.

[0056] In this embodiment, as Figure 7 , Figure 8 As shown, the horizontal keel 13 is an I-beam, and several vertically arranged first connecting pieces 18 are fixedly installed at intervals on the side end of the upper flange of the horizontal keel 13 for bolt connection with the vertical keel 12. Normally, the horizontal keel 13 and the vertical keel 12 are welded together. In this design, the connection method is changed to a detachable bolt connection. This design allows the construction platform to be disassembled after use, facilitating reassembly and use in subsequent projects, avoiding damage from steel cutting, reducing cutting work, and making it safer and more reliable. Specifically, the horizontal keel 13 and the vertical keel 12 can be connected using high-strength bolts. More preferably, the vertical keel 12 is also made of I-beam, which is convenient for connection and saves space.

[0057] In other embodiments, such as Figure 6 As shown, each of the vertical keels 12 below the platform operating panel 9 is equipped with a second connecting piece 11. The second connecting piece 11 is connected to the platform operating panel 9 by bolts to the first diagonal brace tube 10. This design changes the original connection method to a detachable bolt connection, which is based on the same principle as the above embodiment. The purpose is to allow the construction platform to be disassembled after use, facilitating its reuse in subsequent projects.

[0058] Furthermore, such as Figure 6 , Figure 7 As shown, each connector 1 has a third connecting piece 17 fixedly mounted on its side. The second connecting piece 11 located below and the third connecting piece 17 are connected to the second diagonal brace tube 14 by bolts. The bolt connection method is still used here for easy reuse, which will not be described in detail.

[0059] In addition, the addition of a second diagonal brace 14 strengthens the structural integrity of the operating platform, making it more robust and further enhancing safety. Similar designs, such as... Figure 4 , Figure 6 As shown, a third diagonal brace tube 16 can also be installed between the connector 1 and the base plate 4.

[0060] In some other embodiments, such as Figure 6 , Figure 7 As shown, the base plate 4 is a rectangular structure, and flaps 15 are hinged on the outer edges of the base plate 4 to completely seal the gaps of the horizontal opening, preventing tools or workpieces from falling through the gaps during construction, thus ensuring the safety of on-site construction personnel and further improving safety.

[0061] This utility model application exemplarily describes the construction steps of the liftable construction platform as follows:

[0062] S1. Place the construction platform equipped with this repositionable fixing device at the horizontal opening of the main structure 7, so that the fixing part 2 of this repositionable fixing device abuts against the main structure 7. After fixing and installation, construction operation can begin.

[0063] S2. After the construction of this floor is completed, the construction platform is lifted directly by the tower crane. When the resettable fixing device is blocked by the upper floor slab of the main structure 7 during the lifting process, it will deform accordingly to effectively avoid the obstruction of the upper floor slab, and finally the construction platform can be successfully lifted to the next floor through the upper horizontal opening.

[0064] S3. When the construction platform is fully raised to the next level, the resettable fixing device will automatically restore the fixing part 2 to its initial position by relying on the reset part 3.

[0065] S4. Then place the construction platform equipped with this repositionable fixing device at the horizontal opening of the new floor, and abut the fixing part 2 against the main structure 7. After fixing, the construction operation can be carried out.

[0066] S5. When construction of a new layer is completed and construction of the next layer above is to be carried out, the above operation can be followed until the construction is completed.

[0067] The preferred embodiments of this utility model application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the disclosed technical concept, various simple modifications can be made to the technical solution of this utility model application, and these simple modifications all fall within the protection scope of this application. For example, such as Figure 6 As shown, a lifting ring 8 can be fixed at the top of the top plate 9 to facilitate connection with the tower crane for lifting and lowering.

[0068] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. For example, the construction platform can be designed as a three-layer structure, provided that the height restriction requirements are met, based on the construction needs of the main structure 7. To avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0069] Furthermore, various different embodiments of this utility model application can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this utility model application.

Claims

1. A repositionable fixing device for fixing a construction platform to the main structure (7) of a building, characterized in that, include: The connector (1) is vertically fixed to the edge of the construction platform base plate (4); The fixing member (2) is laterally hinged to the connecting member (1) via the rotating shaft (5). The lower end face of the first end of the fixing member (2) abuts against the main structure (7), and the upper end face of the first end of the fixing member (2) abuts against the limiting member (6) fixed on the connecting member (1). A reset component (3) is provided, one end of which is connected to the other end of the fixing component (2), and the other end of which is connected to the base plate (4), for restoring the fixing component (2) to its initial position.

2. The repositionable fixing device according to claim 1, characterized in that: The fastener (2) has a rectangular structure and a through hole (201) for mounting the rotating shaft (5).

3. The repositionable fixing device according to claim 2, characterized in that: The connecting member (1) is a pair of channel steels with openings facing each other. The waist plates of the channel steels are respectively symmetrically provided with shaft holes (102) that match the rotating shaft (5); the fixing member (2) is installed between the channel steels.

4. The repositionable fixing device according to claim 3, characterized in that: The waist plate of the channel steel is symmetrically provided with limiting holes (101) for inserting the limiting member (6), and the limiting holes (101) are located obliquely above the shaft hole (102).

5. The repositionable fixing device according to claim 1, characterized in that: The reset component (3) is a tension spring.

6. A liftable construction platform, comprising a base plate (4), wherein a plurality of vertical keels (12) are fixedly mounted on the upper part of the base plate (4) at intervals, and a platform operation board (9) is installed on the top of the vertical keels (12), characterized in that: The base plate (4) is symmetrically equipped with a repositionable fixing device as described in any one of claims 1 to 5; a transverse keel (13) is fixed between the base plate (4) and the vertical keel (12); The platform operation panel (9) is sequentially fixed with a vertical keel (12) and the platform operation panel (9).

7. The liftable construction platform according to claim 6, characterized in that: The transverse keel (13) is an I-beam, and several vertically arranged first connecting pieces (18) are fixedly installed at intervals on the side end of the upper flange of the transverse keel (13) for connecting with the vertical keel (12) by bolts.

8. The liftable construction platform according to claim 6, characterized in that: Each of the vertical keels (12) below the platform operation panel (9) is provided with a second connecting piece (11), and the second connecting piece (11) is connected to the platform operation panel (9) by a first diagonal brace pipe (10) through bolts.

9. The liftable construction platform according to claim 8, characterized in that: Each of the connectors (1) has a third connecting piece (17) fixedly mounted on its side, and the second connecting piece (11) located below is connected to the third connecting piece (17) by bolts to the second diagonal brace tube (14).

10. The liftable construction platform according to any one of claims 6 to 9, characterized in that: The base plate (4) is a rectangular structure, and flaps (15) are hinged on the outer edges of the base plate (4).

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