An assembled underground station emergency repair splicing device

Abstract

The utility model relates to the field of building construction equipment, a kind of assembly underground station emergency repair splicing device, including sleeve and fixed part;Sleeve includes the clamping part of fan ring, first clamping part and second clamping part;The radius of clamping part is less than or equal to the radius of its clamping reinforcement;Fixed part is used to tighten first clamping part and second clamping part, prevent sleeve from sliding in the axial direction in the reinforcement outer layer.It is simple to operate, and emergency repair speed is fast, and it can respond quickly subway operation passage.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment, and in particular to a prefabricated underground station emergency repair and splicing device. Background Technology

[0002] Dual carbon refers to the goals of peak carbon emissions and carbon neutrality. In September 2020, China explicitly proposed the targets of "peak carbon emissions" by 2030 and "carbon neutrality" by 2060. On July 16, 2021, the national carbon market officially opened. With the introduction of the dual carbon strategy, the application of prefabricated structures in the construction industry has become increasingly widespread, and the prefabrication rate of underground railway stations has grown rapidly. The application of prefabricated underground railway stations in my country is still in its early stages. Current research on prefabricated underground railway stations mainly focuses on the stress analysis of prefabricated components and on-site construction methods for prefabricated components.

[0003] The splicing joints of prefabricated components are often connected using steel and bolts, followed by welding the internal reinforcing bars to the steel. First, complex and variable geological conditions, as well as various potential risks faced during the long-term operation of underground stations, can damage the prefabricated components of prefabricated underground stations. Second, the high temperatures generated during welding create a heat-affected zone near the weld, making the steel brittle and increasing the likelihood of failure. Third, improper welding practices and insufficient welding skills can easily lead to defects such as undercut, weld beads, and incomplete welds, reducing the strength of the welded joints, causing stress concentration, affecting connectivity, and even potentially causing the welded joints to break apart when the component fails. In short, numerous objective and subjective factors can cause damage to prefabricated components, leading to cracks or fractures in the welds between the internal reinforcing bars and steel. Currently, there is no research on rapid emergency repair of prefabricated components in prefabricated underground stations, so there is no specific technical solution for rapid emergency repair of these components. If the prefabricated components of a prefabricated underground station fail, the cessation of subway operation will significantly impact people's travel.

[0004] Therefore, it is necessary to provide a prefabricated emergency repair and splicing device for underground stations to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the challenge of rapid emergency repair and timely resumption of subway operations when the steel and reinforcing bars at the joints of prefabricated components are damaged due to various reasons, this invention provides an emergency repair and splicing device for prefabricated underground stations.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solutions:

[0007] An emergency repair and splicing device for prefabricated underground stations includes a sleeve and a fastener; the sleeve includes a fan-shaped clamping part, a first clamping part, and a second clamping part; the radius of the clamping part is less than or equal to the radius of the clamping steel bar; the fastener is used to tighten the first clamping part and the second clamping part to prevent the sleeve from sliding axially on the outer layer of the steel bar.

[0008] As a further embodiment of this utility model: the first clamping part and the second clamping part are respectively provided with a first through hole and a second through hole on the same axis; the fixing member includes a nut and a bolt.

[0009] As a further embodiment of this utility model: an anti-slip part is provided on the inner wall of the clamp part to increase friction and prevent the sleeve from sliding axially on the outer layer of the reinforcing bar.

[0010] As a further embodiment of this utility model: a first arc-shaped bending portion is further connected between the clamping portion and the first clamping portion; a second arc-shaped bending portion is further connected between the clamping portion and the second clamping portion; the first arc-shaped bending portion and the second arc-shaped bending portion are provided to improve the performance of the sleeve and extend its service life.

[0011] As a further embodiment of this utility model: the clamp part includes a left clamp part and a right clamp part that are hinged together by a shaft.

[0012] The beneficial effects of the prefabricated underground station emergency repair and splicing device involved in this utility model are as follows:

[0013] Because it incorporates a sleeve and fasteners, the sleeve includes a clamping part, a first clamping part, and a second clamping part. The sleeve is placed over the outer layer of the reinforcing bar, and then the fasteners are used to tightly clamp the sleeve to the outer layer of the reinforcing bar. This is equivalent to thickening the outer reinforcing bar, preventing the steel from sliding under stress, and achieving the same effect as secondary welding. The operation is simple, emergency repairs are fast, and it can quickly respond to subway operations. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural view of the first embodiment of the prefabricated underground station emergency repair and splicing device of this utility model;

[0015] Figure 2 This is a front view of the first embodiment of the prefabricated underground station emergency repair and splicing device of this utility model;

[0016] Figure 3 This is a perspective view of the sleeve structure of the first embodiment of the prefabricated underground station emergency repair and splicing device of this utility model;

[0017] Figure 4 This is a schematic diagram of the first embodiment of the prefabricated underground station emergency repair and splicing device of this utility model;

[0018] Figure 5 This is the front view of the second embodiment of the prefabricated underground station emergency repair and splicing device of this utility model.

[0019] In the diagram: 100 - Prefabricated underground station emergency repair splicing device, 110 - Sleeve, 111 - First clamping part, 111a - First through hole, 112 - First arc-shaped bend, 113 - Clamping part, 1131 - Anti-slip part, 1132 - Left clamping part, 1133 - Right clamping part, 114 - Second arc-shaped bend, 115 - Second clamping part, 115a - Second through hole, 120 - Fastener, 121 - Nut, 122 - Bolt, 130 - Shaft, 200 - Reinforcing bar, 300 - Steel material. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a prefabricated underground station emergency repair and splicing device, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] First Embodiment

[0024] like Figure 1 , Figure 2As shown, a prefabricated underground station emergency repair splicing device 100 includes a sleeve 110 and a fastener 120. The sleeve 110 includes a first clamping part 111, a first arc-shaped bending part 112, a fan-shaped clamping part 113, a second arc-shaped bending part 114, and a second clamping part 115, which are integrally formed sequentially. The radius R1 of the clamping part 113 is less than or equal to the radius of the reinforcing bar 200 it clamps. At the same time, a certain distance L is provided between the first clamping part 111 and the second clamping part 115 to ensure that the fastener 120 has room to function when the clamping part 113 clamps the reinforcing bar 200. The first arc-shaped bending part 112 and the second arc-shaped bending part 114 are provided to improve the performance of the sleeve 110 and extend its service life. The fastener 120 is used to tighten the first clamping part 111 and the second clamping part 115 to prevent the sleeve 110 from sliding axially on the outer layer of the reinforcing bar 200.

[0025] Specifically, the first arc-shaped bending portion 112 bends outward, the clamping portion 113 is in the shape of a semi-circle, and the first clamping portion 111 and the first arc-shaped bending portion 112 are axially symmetrical with the second clamping portion 115 and the second arc-shaped bending portion 114.

[0026] like Figure 4 As shown, during the assembly process, the reinforcing bar 200 is inserted into the steel member 300, and the two are welded together for fixation. When various objective or subjective reasons cause damage to the prefabricated component, and cracks or breaks appear in the weld between the reinforcing bar 200 and the steel member 300, the steel member 300 is compressed under force, causing it to slide outwards, similar to the reinforcing bar 200 being pulled inwards, thus causing the reinforcing bar 200 to lose its original supporting and connecting function. Once the prefabricated components of the prefabricated underground station are damaged, the subway operation must be stopped. Given the characteristic that the subway cannot be shut down for an extended period of time, it is necessary to provide this invention for rapid emergency repair, enabling the subway to resume operation in a timely manner.

[0027] Because of the sleeve 110 and the fixing member 120, the sleeve 110 includes the clamping part 113, the first clamping part 111, and the second clamping part 115. In use, the clamping part 113 is placed on the outer layer of the reinforcing bar 200, and then the fixing member 120 is used to tightly clamp the sleeve 110 on the outer layer of the reinforcing bar 200, which is equivalent to thickening the outer reinforcing bar 200, so that the steel 300 cannot continue to slide outward after being subjected to force, and the effect is equivalent to secondary welding. If conditions permit, the steel 300 can also be pushed to reset before tightening the fixing member 120. The operation is simple, the emergency repair speed is fast, and it can quickly respond to subway operation and passage.

[0028] like Figure 1 , Figure 2 , Figure 3As shown, the first clamping part 111 and the second clamping part 115 are respectively provided with a first through hole 111a and a second through hole 115a on the same axis; the fastener 120 includes a nut 121 and a bolt 122.

[0029] In use, the clamp 113 is fitted over the outer layer of the reinforcing bar 200, and then the bolt 122 is inserted into the first through hole 111a and the second through hole 115a. The nut 121 is then tightened to prevent the steel 300 from continuing to slide outward with the reinforcing bar 200 after being subjected to force.

[0030] like Figure 1 , Figure 3 As shown, an anti-slip part 1131 is provided on the inner wall of the clamp part 113. The anti-slip part 1131 can be a plurality of radial protrusions or a plurality of diamonds spaced apart. The anti-slip part 1131 can increase the friction to prevent the sleeve 110 from sliding axially on the outer layer of the reinforcing bar 200.

[0031] Second Embodiment

[0032] like Figure 5 As shown, the only difference between the second embodiment and the first embodiment is that the clamping part 113 in the second embodiment includes a left clamping part 1132 and a right clamping part 1133 hinged together by a shaft 130. This configuration makes operation simpler and allows for a wider range of applications.

[0033] The above description of the utility model is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A prefabricated underground station emergency repair and splicing device (100), characterized in that, It includes a sleeve (110) and a fastener (120); the sleeve (110) includes a fan-shaped clamping part (113), a first clamping part (111) and a second clamping part (115); the radius of the clamping part (113) is less than or equal to the radius of the clamping steel bar (200); the fastener (120) is used to tighten the first clamping part (111) and the second clamping part (115) to prevent the sleeve (110) from sliding axially on the outer layer of the steel bar (200).

2. The prefabricated underground station emergency repair and splicing device (100) according to claim 1, characterized in that, The first clamping part (111) and the second clamping part (115) are respectively provided with a first through hole (111a) and a second through hole (115a) on the same axis; the fastener (120) includes a nut (121) and a bolt (122).

3. The prefabricated underground station emergency repair and splicing device (100) according to claim 2, characterized in that, The inner wall of the clamp (113) is provided with an anti-slip part (1131) to increase friction and prevent the sleeve (110) from sliding axially on the outer layer of the reinforcing bar (200).

4. The prefabricated underground station emergency repair and splicing device (100) according to claim 3, characterized in that, A first arc-shaped bend (112) is also connected between the clamping part (113) and the first clamping part (111); a second arc-shaped bend (114) is also connected between the clamping part (113) and the second clamping part (115); the first arc-shaped bend (112) and the second arc-shaped bend (114) are provided to improve the performance of the sleeve (110) and extend its service life.

5. The prefabricated underground station emergency repair and splicing device (100) according to any one of claims 1 to 4, characterized in that, The clamping part (113) includes a left clamping part (1132) and a right clamping part (1133) that are hinged together by a shaft (130).

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