A prefabricated platform plate positioning and buffering installation device

Abstract

The utility model relates to the field of rail transit engineering construction discloses a prefabricated platform board positioning and buffer installation device, including platform base, the upper portion of platform base is installed with platform board body, the top fixed connection of platform base has multiple lower positioning cylinder, the lower portion of platform board body is installed with multiple upper positioning cylinder, buffer positioning piece is installed together between upper positioning cylinder and lower positioning cylinder, the lower portion of upper positioning cylinder is provided with upper positioning groove. In the utility model, through the cooperation of lower positioning cylinder and buffer positioning piece, platform board body can be quickly guided to install in place accurately, the installation efficiency and positioning accuracy are improved greatly, the workload of manual adjustment is reduced, the impact energy when the plate falls can be absorbed in the installation process of buffer sleeve, the damage of the rigid collision between platform board corner and base is avoided, in the use, vibration and impact from train operation or other aspects can also be buffered, it is more practical.

Description

Technical Field

[0001] This utility model relates to the field of rail transit engineering construction, and in particular to a precast platform slab positioning and buffer installation device. Background Technology

[0002] Precast concrete platform slabs are widely used in the construction of railway and subway stations. Precast platform slabs have advantages such as factory production, controllable quality, and fast construction speed.

[0003] Currently, the installation of precast platform slabs typically involves direct hoisting into place followed by bottom grouting or welding for fixation. This method has the following problems: 1. Positioning accuracy is difficult to guarantee, requiring repeated adjustments and resulting in low efficiency; 2. During installation, the precast slab is in rigid contact with the foundation, making it prone to collisions and corner damage; 3. It lacks effective buffering and deformation adaptability, making it susceptible to stress concentration and even cracking when the foundation experiences uneven settlement or thermal expansion and contraction. Therefore, an installation device that can achieve rapid and accurate positioning, provide buffering protection, and adapt to certain deformations is needed, but it is not practical enough. To address these issues, a precast platform slab positioning and buffering installation device is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a precast platform slab positioning and buffering installation device, which aims to improve the problems of existing technology where positioning accuracy is difficult to guarantee, repeated adjustments are required, efficiency is low, and during installation, the precast slab and the foundation are in rigid contact, which is prone to collision, resulting in corner damage, and lack of effective buffering and deformation adaptability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated platform slab positioning and buffer installation device, comprising a platform foundation, a platform slab installed on the upper part of the platform foundation, multiple lower positioning cylinders fixedly connected to the top of the platform foundation, multiple upper positioning cylinders installed on the lower part of the platform slab, a buffer positioning component installed between the upper and lower positioning cylinders, an upper positioning groove opened at the lower part of the upper positioning cylinder, a lower positioning groove opened at the middle part of the lower positioning cylinder, positioning conical heads provided at both the upper and lower parts of the buffer positioning component, the upper positioning conical head inserted into the upper positioning groove, the lower positioning conical head inserted into the lower positioning groove, and a buffer sleeve sleeved together on the upper part of the buffer positioning component and the outer side of the upper positioning conical head.

[0006] As a further description of the above technical solution: The upper part of the outer wall of the buffer positioning component is fixedly connected to a limiting protrusion ring, and the bottom surface of the buffer sleeve is in contact with the top surface of the limiting protrusion ring.

[0007] As a further description of the above technical solution: The outer wall of the buffer sleeve has multiple annular grooves.

[0008] As a further description of the above technical solution: The inner wall of the upper positioning cylinder is provided with a spiral exhaust groove.

[0009] As a further description of the above technical solution: The outer wall of the lower positioning cylinder is fixedly connected with multiple anchoring steel bars.

[0010] As a further description of the above technical solution: The anchoring reinforcement bars are arranged in an inverted L shape.

[0011] As a further description of the above technical solution: The top of the lower positioning cylinder is provided with an annular groove, and the limiting protrusion is movably connected to the annular groove.

[0012] As a further description of the above technical solution: The upper part of the lower positioning cylinder is threaded with a protective cover.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the cooperation between the lower positioning cylinder and the buffer positioning component can quickly guide the platform panel to be accurately installed in place, which greatly improves the installation efficiency and positioning accuracy, reduces the workload of manual adjustment, and the buffer sleeve can absorb the impact energy when the panel falls during the installation process, avoiding rigid collision between the corners of the platform panel and the foundation and causing damage. During use, it can also buffer vibrations and impacts from train operation or other sources, making it more practical.

[0014] 2. In this utility model, the platform foundation, platform slab, upper positioning cylinder, lower positioning cylinder, and buffer positioning component can all be prefabricated. The on-site installation process is simple. It only requires hoisting and alignment and inserting the buffer positioning component. The construction speed is fast. Moreover, the main components of this device are made of metal and aging-resistant elastic materials, which have a long service life, require no maintenance, and are highly practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a prefabricated platform slab positioning and buffer installation device proposed in this utility model. Figure 2 This is a three-dimensional cross-sectional structural diagram of a prefabricated platform slab positioning and buffer installation device proposed in this utility model. Figure 3This is a three-dimensional structural diagram showing the upper positioning sleeve, lower positioning sleeve, and buffer positioning component of a prefabricated platform slab positioning and buffer installation device proposed in this utility model. Figure 4 This is a three-dimensional structural diagram of the buffer positioning component of a prefabricated platform slab positioning and buffer installation device proposed in this utility model. Figure 5 This is a three-dimensional structural diagram of the prefabricated platform slab positioning and buffer installation device proposed in this utility model during the installation of the platform slab and the station foundation. Figure 6 This is a three-dimensional structural diagram of the lower positioning cylinder during the installation of a prefabricated platform slab positioning and buffer installation device proposed in this utility model. Figure 7 This is a partial three-dimensional structural diagram of the lower positioning cylinder, protective cover, and station foundation of a prefabricated platform slab positioning and buffer installation device proposed in this utility model.

[0016] Legend: 1. Upper positioning cylinder; 2. Lower positioning cylinder; 3. Buffer positioning component; 4. Platform foundation; 5. Platform slab; 6. Protective cover; 11. Upper positioning groove; 12. Spiral exhaust groove; 21. Anchoring steel bar; 22. Lower positioning groove; 23. Annular groove; 31. Positioning cone head; 32. Buffer sleeve; 33. Limiting protrusion ring; 321. Annular groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 5 - Figure 7This utility model provides an embodiment of a precast platform slab positioning and buffering installation device, including a platform foundation 4, which is cast in place. A platform slab 5, which is a precast platform slab, is installed on the upper part of the platform foundation 4. Multiple lower positioning cylinders 2 are fixedly connected to the top of the platform foundation 4. These cylinders are used to cooperate in the installation of buffer positioning components 3 and to cooperate in the positioning of upper positioning cylinders 1. They are embedded in the platform foundation 4. Multiple upper positioning cylinders 1 are installed on the lower part of the platform slab 5. These cylinders are embedded in the lower part of the platform slab 5 during its production. Buffer positioning components 3 are installed between the upper positioning cylinders 1 and the lower positioning cylinders 2. These components are used to cooperate in the positioning and buffering of the platform slab 5 during installation. A protective cover 6 is threadedly connected to the upper part of the lower positioning cylinder 2. This cover is used to protect the middle positioning groove of the lower positioning cylinder 2 when it is installed in the platform foundation 4.

[0019] like Figure 1 - Figure 3 As shown, the lower part of the upper positioning cylinder 1 is provided with an upper positioning groove 11, which is used to cooperate with the positioning of the buffer positioning component 3. The inner wall of the upper positioning cylinder 1 is provided with a spiral exhaust groove 12, which can timely exhaust the air in the upper positioning groove 11 when the buffer sleeve 32 on the upper part of the buffer positioning component 3 is installed. The middle part of the lower positioning cylinder 2 is provided with a lower positioning groove 22. The outer wall of the lower positioning cylinder 2 is fixedly connected with multiple anchoring steel bars 21. The anchoring steel bars 21 are set in an inverted L shape, which is used to cooperate with the fixing between the lower positioning cylinder 2 and the platform foundation 4. The top of the lower positioning cylinder 2 is provided with an annular groove 23, which is used to cooperate with the installation and limiting of the limiting protrusion ring 33. The limiting protrusion ring 33 is movably connected to the annular groove 23.

[0020] Please see Figure 4 The buffer positioning component 3 is provided with positioning cone heads 31 at both the upper and lower parts. The positioning cone head 31 at the upper part is inserted into the upper positioning groove 11, and the positioning cone head 31 at the lower part is inserted into the lower positioning groove 22. It is used to cooperate with the positioning during the installation of the precast platform slab. The upper part of the buffer positioning component 3 and the outer part of the positioning cone head 31 at the upper part are jointly fitted with a buffer sleeve 32, which is made of rubber or polyurethane material with good weather resistance and high strength. It is used to cooperate with the buffer during the installation of the precast platform slab. The upper part of the outer wall of the buffer positioning component 3 is fixedly connected with a limiting protrusion ring 33, which is used to cooperate with the limiting of the buffer sleeve 32. The bottom surface of the buffer sleeve 32 is in contact with the top surface of the limiting protrusion ring 33. The outer wall of the buffer sleeve 32 is provided with multiple annular grooves 321, which can provide additional deformation space under pressure.

[0021] Working principle: During installation, the lower positioning cylinder 2 is pre-embedded when pouring the platform foundation 4, ensuring the accurate position and elevation of the lower positioning cylinder 2. During the pouring process, the protective cover 6 needs to be fixed to the lower positioning cylinder 2 to protect it. When prefabricating the platform slab 5 in the factory, the upper positioning cylinder 1 is accurately pre-embedded to ensure its position matches the pre-embedded lower positioning cylinder 2. After the processed platform slab 5 is transported to the construction site, the protective cover 6 is first removed from the lower positioning cylinder 2. Then, the positioning cone head 31 at the bottom of the buffer positioning component 3 is inserted into the lower positioning groove 22 in the lower positioning cylinder 2 fixed on the platform foundation 4. Initial positioning is achieved by relying on the cone surface cooperation. Then, the platform is hoisted... The prefabricated platform slab 5 is lifted and its pre-embedded upper positioning cylinder 1 is aligned with the buffer sleeve 32 on the upper part of the buffer positioning component 3 and slowly lowered. When the upper end of the buffer sleeve 32 contacts the upper positioning groove 11 of the upper positioning cylinder 1, it will be guided to center and gradually compressed. The compression of the buffer sleeve 32 not only consumes the kinetic energy of the fall and plays an effective buffering role, avoiding rigid impact, but its elastic reaction force also provides stable support for the platform slab. Finally, the weight of the platform slab 5 is transferred to the platform foundation 4 through the buffer positioning component 3. After installation, the buffer sleeve 32 is always in a certain compressed state, which not only provides support, but also adapts to the slight deformation that may occur during use.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast platform slab positioning and buffer installation device, comprising a platform foundation (4), characterized in that: The platform foundation (4) is equipped with a platform plate (5) on its upper part. The platform foundation (4) is fixedly connected to the top of the platform plate (4) and there are multiple lower positioning cylinders (2). The platform plate (5) is equipped with multiple upper positioning cylinders (1) on its lower part. A buffer positioning component (3) is installed between the upper positioning cylinder (1) and the lower positioning cylinder (2). The lower part of the upper positioning cylinder (1) is provided with an upper positioning groove (11), and the middle part of the lower positioning cylinder (2) is provided with a lower positioning groove (22). The upper and lower parts of the buffer positioning component (3) are provided with positioning cone heads (31). The positioning cone head (31) located at the upper part is inserted into the upper positioning groove (11), and the positioning cone head (31) located at the lower part is inserted into the lower positioning groove (22). The upper part of the buffer positioning component (3) and the outer part of the positioning cone head (31) located at the upper part are fitted with a buffer sleeve (32).

2. The precast platform slab positioning and buffer installation device according to claim 1, characterized in that: The upper part of the outer wall of the buffer positioning member (3) is fixedly connected to a limiting protrusion ring (33), and the bottom surface of the buffer sleeve (32) is in contact with the top surface of the limiting protrusion ring (33).

3. The precast platform slab positioning and buffer installation device according to claim 1, characterized in that: The outer wall of the buffer sleeve (32) is provided with annular grooves (321), and there are multiple such grooves.

4. The precast platform slab positioning and buffer installation device according to claim 1, characterized in that: The inner wall of the upper positioning cylinder (1) is provided with a spiral exhaust groove (12).

5. The precast platform slab positioning and buffer installation device according to claim 1, characterized in that: The lower positioning cylinder (2) has multiple anchoring steel bars (21) fixedly connected to its outer wall.

6. The precast platform slab positioning and buffer installation device according to claim 5, characterized in that: The anchoring steel bar (21) is set in an inverted L shape.

7. The precast platform slab positioning and buffer installation device according to claim 2, characterized in that: The top of the lower positioning cylinder (2) is provided with an annular groove (23), and the limiting protrusion (33) is movably connected to the annular groove (23).

8. The precast platform slab positioning and buffer installation device according to claim 1, characterized in that: The upper part of the lower positioning cylinder (2) is threaded with a protective cover (6).

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