Expansion joint slot anti-falling type temporary passage covering device

Abstract

This utility model relates to the field of bridge construction technology and discloses a temporary passage cover device for preventing fall in expansion joint slots. It includes a load-bearing component for covering the expansion joint slot. The load-bearing component includes a load-bearing panel. An expansion joint clamping component is provided at the lower end of the load-bearing component to prevent the load-bearing panel from moving in the expansion joint slot. The load-bearing panel is designed with an inclined surface and anti-slip texture. When bearing load, the anti-slip texture increases friction and stabilizes the load. The inclined surface guides the load to be distributed to both sides. After being stressed, the force is transmitted to the first longitudinal stiffening steel plate through the welding point. Its rib structure converts the concentrated load into a linearly distributed force and then transmits it to the side. The side stiffening ribs help resist the warping of the panel edge and prevent cracking. The first longitudinal stiffening steel plate transmits the force to the L-shaped cover plate, and the load is distributed to the structural base on both sides of the expansion joint through its lateral end, thus completing the load transfer and avoiding pressure on the pre-embedded steel bars in the slot. The longitudinal stiffening steel plate and the side stiffening ribs strengthen the support from the bottom and the side, distribute the load and prevent deformation.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a temporary passage cover device for preventing falls at expansion joint grooves. Background Technology

[0002] In the construction of modern transportation infrastructure, bridges are a key component. Their construction process involves many complex steps and technical points. Expansion joints, as an important structure in bridges, are usually set between the ends of two beams, between the beam end and the abutment, or at the hinge points of the bridge. Their main function is to effectively meet the deformation requirements of the bridge deck caused by factors such as temperature changes and vehicle loads, and to ensure the stability and durability of the bridge structure. For example, in the hot summer, the bridge deck will stretch due to thermal expansion. Expansion joints can provide the necessary deformation space to prevent the bridge deck structure from being damaged by compression. In the cold winter, when the bridge deck shrinks, expansion joints can adapt to this shrinkage deformation. Because the load of the device cannot be distributed, it will concentrate pressure on the pre-embedded steel bars in the expansion joint groove and the walls or floors on both sides, which can easily lead to structural cracking and damage. In addition, the device loses its horizontal, vertical and longitudinal constraints, and is prone to displacement and warping under the vibration of traffic or external impact. This not only exposes the groove and causes the risk of falling objects and people, but also allows stones and garbage to fall into the expansion joint, affecting subsequent installation. At the same time, the device itself may also fall due to uneven stress, posing a double threat to construction and traffic safety. Therefore, those skilled in the art provide an expansion joint groove anti-fall temporary passage cover device to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this utility model is to provide a temporary passage cover device for preventing falls in expansion joint grooves, thereby solving the problems mentioned in the background art above.

[0004] This utility model provides the following technical solution: a temporary passage cover device for preventing the expansion joint groove from falling, including a load-bearing component for covering the expansion joint groove, the load-bearing component including a load-bearing panel, and an expansion joint clamping component for preventing the load-bearing panel from moving within the expansion joint groove at the lower end of the load-bearing component.

[0005] As a preferred embodiment of the above technical solution, the load-bearing component includes a load-bearing panel, the load-bearing panel is in the shape of an inclined surface, and the surface of the load-bearing panel has an anti-slip textured structure.

[0006] As a preferred embodiment of the above technical solution, a longitudinal stiffening steel plate is fixedly installed at the lower end of the load-bearing panel, and side stiffening ribs are fixedly installed on both sides of the longitudinal stiffening steel plate near the lower end of the load-bearing panel, and a plurality of side stiffening ribs are provided.

[0007] As a preferred embodiment of the above technical solution, a cover plate is fixedly installed at the lower end of the longitudinal stiffening steel plate. The cover plate is L-shaped, and the lateral end of the L-shaped cover plate has a vertical downward structure.

[0008] As a preferred embodiment of the above technical solution, the expansion joint tightening assembly includes a second longitudinal stiffening steel plate, which is fixedly installed at the center of the lower end of the cover plate near both sides, and a top stiffening steel plate is fixedly installed at the middle of the upper end of the two second longitudinal stiffening steel plates near the lower end of the cover plate.

[0009] As a preferred embodiment of the above technical solution, transverse stiffening steel plates are fixedly installed on both sides of the two longitudinal stiffening steel plates, and a plurality of transverse stiffening steel plates are provided. Expansion joint struts are inserted inside the plurality of transverse stiffening steel plates, and a plurality of expansion joint struts are provided.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model's load-bearing panel features an inclined surface with anti-slip texture. Under load, the anti-slip texture increases friction and stabilizes the load transfer. The inclined surface guides the load to both sides, and after being stressed, the force is transmitted to the longitudinal stiffening steel plate through the welded points. Its rib structure transforms the concentrated load into a linearly distributed force for lateral transmission. Side reinforcements assist in preventing panel edge warping and cracking. The longitudinal stiffening steel plate transmits the force to the L-shaped cover plate, which then distributes the load to the structural base on both sides of the expansion joint via its transverse ends, completing the load transfer and avoiding pressure on the pre-embedded reinforcing bars in the groove. The longitudinal stiffening steel plate and side reinforcements provide enhanced support from below and from the sides, distributing the load and preventing deformation. The short side of the L-shaped cover plate vertically stops the joint edge, restricting its own movement and blocking debris from entering the groove. To achieve temporary protection and ensure construction and traffic safety, the load-bearing components are supported by cover plates on both sides of the expansion joint. After bearing the traffic load, the load is transferred to the top-tightening components through the cover plates. The second longitudinal stiffening steel plate receives the load, and the top stiffening steel plate distributes the load evenly in the longitudinal direction. The transverse stiffening steel plate then transmits the force to both sides of the joint, distributing it to the wall or floor to prevent concentrated damage. The expansion joint struts, which are inserted through the transverse stiffening steel plates, tighten the structures on both sides during installation, restricting the lateral movement of the components. The second longitudinal stiffening steel plate is fixedly connected to the cover plate and each stiffening steel plate, limiting displacement in both the longitudinal and vertical directions. Each stiffening steel plate enhances the strength and rigidity of the top-tightening components, adapts to the deformation of the construction load, achieves stable coverage and protection of the groove, prevents the device from shifting and falling, and ensures safety. Attached Figure Description

[0011] Figure 1 A right-side three-dimensional structural diagram of a temporary passage cover device for preventing falls at expansion joint grooves; Figure 2 A left-side three-dimensional structural diagram of a temporary passage cover device for preventing falls at expansion joint grooves; Figure 3 This is a three-dimensional structural diagram of the load-bearing panel; Figure 4 This is a schematic diagram of the three-dimensional structure of the cover plate; Figure 5 A three-dimensional structural diagram of the expansion joint clamping assembly.

[0012] Legend: 1. Load-bearing components; 101. Load-bearing panel; 102. Longitudinal stiffening steel plate one; 103. Side stiffeners; 104. Cover plate; 2. Expansion joint clamping components; 201. Longitudinal stiffening steel plate two; 202. Top stiffening steel plate; 203. Transverse stiffening steel plate; 204. Expansion joint strut. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Please see Figures 1-5 As shown, this utility model provides a technical solution: a temporary passage cover device for preventing the expansion joint groove from falling, including a load-bearing component 1 for covering the expansion joint groove, the load-bearing component 1 including a load-bearing panel 101, and an expansion joint clamping component 2 for preventing the load-bearing panel 101 from moving in the expansion joint groove at the lower end of the load-bearing component 1.

[0015] As one implementation method in this embodiment, please refer to Figures 3-4 As shown, the load-bearing component 1 includes a load-bearing panel 101, which is inclined and has an anti-slip textured surface. A longitudinal stiffening steel plate 102 is fixedly installed at the lower end of the load-bearing panel 101. Side stiffening ribs 103 are fixedly installed on both sides of the longitudinal stiffening steel plate 102 near the lower end of the load-bearing panel 101. Several side stiffening ribs 103 are provided. A cover plate 104 is fixedly installed at the lower end of the longitudinal stiffening steel plate 102. The cover plate 104 is L-shaped and the horizontal end of the L-shaped cover plate 104 is vertically downward. Furthermore, the load-bearing panel 101 adopts an inclined surface combined with an anti-slip texture design. When bearing traffic loads, the anti-slip texture increases friction, ensuring stable load transfer. The inclined structure guides the load to be distributed to both sides. After the load-bearing panel 101 is under stress, the force is transferred to the longitudinal stiffening steel plate 102 through the welding points. Its rib structure transforms the concentrated load into a linearly distributed force, which is further transferred to both sides. At the same time, the side stiffeners 103 help resist the warping deformation of the panel edge and prevent local stress concentration from causing cracks. The longitudinal stiffening steel plate 102 transfers the load to the L-shaped cover. The cover plate 104 ultimately distributes the load to the structural base on both sides of the expansion joint through its transverse end, completing the load transfer device structure and avoiding direct pressure on the pre-embedded steel bars in the groove. Therefore, through the longitudinal stiffening steel plate 102 and several side stiffeners 103, the structural support is strengthened from below and both sides to distribute the load and prevent deformation. The L-shaped cover plate 104, with its short side vertically downward and stop at the joint edge, clamps the two sides of the expansion joint, which not only restricts its own vertical movement, but also seals the groove and prevents stones and garbage from falling in, achieving temporary covering protection and ensuring construction and traffic safety.

[0016] As one implementation method in this embodiment, please refer to Figure 5 As shown, the expansion joint tightening assembly 2 includes a longitudinal stiffening steel plate 201, which is fixedly installed at the lower center of the cover plate 104 near both sides. A top stiffening steel plate 202 is fixedly installed at the middle of the upper end of the two longitudinal stiffening steel plates 201 near the lower end of the cover plate 104. A transverse stiffening steel plate 203 is fixedly installed on both sides of the two longitudinal stiffening steel plates 201. Several transverse stiffening steel plates 203 are provided, and expansion joint struts 204 are inserted inside each of the several transverse stiffening steel plates 203. Several expansion joint struts 204 are provided. Furthermore, the load-bearing component 1 is placed on both sides of the expansion joint along the joint edge via an L-shaped cover plate 104 to bear the load of personnel, small equipment, etc. After the load is transferred to the expansion joint clamping component 2 via the cover plate 104, it is received by the longitudinal stiffening steel plate 201 and uniformly distributed longitudinally with the help of the top stiffening steel plate 202. Then, it is transferred laterally to both sides of the expansion joint via the transverse stiffening steel plate 203, ultimately distributing the load to the structural walls or floors on both sides to avoid concentrated loads damaging the structure. At the same time, several expansion joint struts 204 are inserted into the transverse stiffening steel plate 203, and during installation, they are clamped to the structures on both sides of the expansion joint at both ends to form transverse rigidity. The longitudinal stiffening steel plate 201 and the entire load-bearing component 1 are constrained and restricted from lateral movement. The fixed connection between the longitudinal stiffening steel plate 201 and the cover plate 104 and each stiffening steel plate further restricts the displacement of the component from the longitudinal and vertical directions, ensuring the stability of the device in the slot from multiple dimensions. Therefore, each stiffening steel plate simultaneously enhances the strength and rigidity of the expansion joint clamping component 2 from the longitudinal, top, and lateral directions. It not only meets the load and deformation requirements during the construction of the floor slab in the building, but also achieves continuous coverage and protection of the expansion joint slot through stable structural support and constraint, preventing the device from shifting or falling, and ensuring the safety of passage and subsequent construction.

[0017] Working principle: The inclined surface of the load-bearing panel 101 is equipped with anti-slip texture. When bearing load, it increases friction and stabilizes the load, and guides the load to be dispersed laterally. After being stressed, the force is transmitted to the longitudinal stiffening steel plate 102 through the welding point. Its rib structure transforms the concentrated load into a linearly distributed force that is transmitted laterally. The side stiffening ribs 103 assist in resisting warping and preventing cracking. The longitudinal stiffening steel plate 102 transmits the force to the L-shaped cover plate 104, and disperses the load to the side base of the joint through the transverse end. The pressure-avoiding pre-embedded steel bars, the longitudinal stiffening steel plate 102 and the side stiffening ribs 103 provide strong support from the bottom and sides, disperse the load and prevent deformation. The short side of the L-shaped cover plate 104 stops the joint edge, limits the movement of the joint side, seals the groove and blocks debris, and ensures the safety of construction and passage. The load-bearing component 1 rests on both sides of the expansion joint using the L-shaped cover plate 104. After bearing the load, it is transferred through the cover plate 104 to the expansion joint clamping component 2. The longitudinal stiffening steel plate 201 receives the load, the top stiffening steel plate 202 distributes the load longitudinally, and the transverse stiffening steel plate 203 transmits the force to both sides of the joint, ultimately distributing the load to the structural walls or floor slabs on both sides to avoid concentrated loads damaging the structure. The expansion joint strut 204 is inserted through the transverse stiffening steel plate 203 and is clamped to both sides during installation to restrict the lateral movement of the load-bearing component 1. The longitudinal stiffening steel plate 201 is fixed to the cover plate 104 and each stiffening steel plate, limiting longitudinal and vertical displacement. Each stiffening steel plate increases the strength and rigidity of the clamping component, adapts to load deformation, stabilizes the groove, prevents falls, and ensures safety.

[0018] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A stretch joint slot anti-falling type temporary access cover device, characterized in that: It includes a load-bearing component (1) for covering the expansion joint groove, the load-bearing component (1) including a load-bearing panel (101), and an expansion joint clamping component (2) for preventing the load-bearing panel (101) from moving within the expansion joint groove at the lower end of the load-bearing component (1).

2. The expansion joint pocket fall-type temporary access cover of claim 1, wherein: The load-bearing component (1) includes a load-bearing panel (101), which is in the shape of an inclined surface and has an anti-slip textured surface.

3. The expansion joint pocket fall-type temporary access cover of claim 2, wherein: A longitudinal stiffening steel plate (102) is fixedly installed at the lower end of the load-bearing panel (101). Side stiffening ribs (103) are fixedly installed on both sides of the longitudinal stiffening steel plate (102) near the lower end of the load-bearing panel (101). Several side stiffening ribs (103) are provided.

4. The expansion joint pocket fall-type temporary access covering device of claim 3, wherein: A cover plate (104) is fixedly installed at the lower end of the longitudinal stiffening steel plate (102). The cover plate (104) is L-shaped, and the horizontal end of the L-shaped cover plate (104) has a vertical downward structure.

5. The expansion joint pocket fall-type temporary access covering device of claim 4, wherein: The expansion joint tightening assembly (2) includes a longitudinal stiffening steel plate two (201), which is fixedly installed at the lower center of the cover plate (104) near both sides. A top stiffening steel plate (202) is fixedly installed at the middle of the upper end of the two longitudinal stiffening steel plates two (201) near the lower end of the cover plate (104).

6. The expansion joint pocket fall-type temporary crossover cover of claim 5, wherein: Two longitudinal stiffening steel plates (201) are fixedly installed on both sides with transverse stiffening steel plates (203). There are several transverse stiffening steel plates (203). Expansion joint struts (204) are inserted inside each of the transverse stiffening steel plates (203). There are several expansion joint struts (204).

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