Ladder type cable bridge with self-adaptive splicing gap

Abstract

The utility model discloses a ladder type cable bridge with self-adaptive splicing gaps, which comprises two side baffle plates and a plurality of cross beams transversely erected between the two side baffle plates, and the end parts of the cross beams are fixedly connected with the inner wall surfaces of the side baffle plates through fastening structures; the cross beam is fixedly connected with the bottom sides of the side baffles, and a top cover is arranged at the top ends of the two side baffles in a buckled mode. The fastening structure comprises a limiting groove formed in the inner side of the side baffle, the end of the cross beam is correspondingly inserted into the limiting groove, a connecting piece is arranged at the end of the cross beam, and the connecting piece is attached to and fixedly connected with the inner groove wall of the limiting groove. An elastic piece set is arranged between the end face of the cross beam and the inner groove wall of the limiting groove. The utility model solves the problem that the ladder-type bridge is easy to loosen after long-time use to influence the structural stability.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridges, in particular to a ladder-type cable bridge with self-adaptive splicing gaps. Background Art

[0002] Cable trays are commonly used protective devices for laying and guiding cables, and their structural stability is crucial. Ladder-type cable trays are a common type of cable tray structure, consisting of side panels connected to several beams. Common connection methods include welding and screwing. Regardless of the method, certain connection strength requirements are required between the side panels and the beams. After long-term use, welds may become loose due to desoldering, and screws may become loose due to thread wear. When there is a looseness at a local connection point in the overall cable tray structure, a splicing gap will be generated, increasing the vibration amplitude of the side panels when subjected to external forces, thereby affecting the stability of the cable tray structure. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a ladder-type cable tray with an adaptive splicing gap, which solves the problem that the ladder-type cable tray becomes loose after long-term use and affects the structural stability.

[0004] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a ladder-type cable tray with adaptive splicing gap, comprising two side baffles and a plurality of crossbeams horizontally arranged between the two side baffles, the ends of the crossbeams being fixedly connected to the inner wall surfaces of the side baffles by a fastening structure; the crossbeams are fixedly connected to the bottom sides of the side baffles, and the top ends of the two side baffles are buckled with top covers; the fastening structure comprises a limiting groove arranged on the inner side of the side baffles, the ends of the crossbeams are correspondingly inserted into the limiting grooves, the ends of the crossbeams are provided with connecting plates, the connecting plates are adhered to and fixedly connected to the inner groove wall of the limiting groove, and an elastic plate group is provided between the end face of the crossbeam and the inner groove wall of the limiting groove.

[0005] Furthermore, the limit groove is extended along the length direction of the side baffle, and the ends of multiple beams are fixedly connected in the limit groove at equal intervals along the groove direction, and the upper and lower inner groove surfaces of the limit groove are respectively fitted with the upper and lower end surfaces of the beam.

[0006] Furthermore, the connecting pieces are symmetrically arranged on both sides of the end portion of the crossbeam.

[0007] Furthermore, the elastic sheet group includes two symmetrically arranged elastic sheets, the elastic sheet includes a swinging part and a limiting part, the swinging part is fixedly connected to the end of the beam, the limiting part is located at the end of the swinging part away from the beam connected thereto, and when the connecting sheet is fitted with the limiting groove, the limiting parts of the two elastic sheets are fitted with each other.

[0008] Furthermore, the crossbeam adopts a square tube structure, and the connecting piece and the elastic piece group are both an integral structure with the crossbeam; the connecting piece is folded outward relative to the tube walls on both sides of the crossbeam, and the elastic piece group is folded inward relative to the upper and lower tube walls of the crossbeam.

[0009] Furthermore, the top cover is provided with an inward-locking flange, and the flanges on both sides are respectively fitted to the top outer side surfaces of the two side baffles.

[0010] Beneficial effect: The utility model is a ladder-type cable tray with adaptive splicing gap, which realizes the fixed connection between the end of the beam and the side baffle through a unique fastening structure, ensuring the firm connection between the two. After long-term use, even if a certain amount of looseness occurs, the adaptive gap support of the fastening structure ensures that the beam and the side baffle always maintain a close support effect, avoiding the occurrence of looseness caused by the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the overall structural diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of a vertical cross-section structure of a fastening structure according to an embodiment of the present utility model;

[0013] Figure 3 This is a schematic diagram of the horizontal cross-section structure of the fastening structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] As attached Figure 1-3 The ladder-type cable tray with adaptive splicing gap comprises two side baffles 1 and a plurality of beams 2 horizontally arranged between the two side baffles 1, the ends of the beams 2 are fixedly connected to the inner wall surfaces of the side baffles 1 by fastening structures 3; the beams 2 are fixedly connected to the bottom sides of the side baffles 1, and the top ends of the two side baffles 1 are buckled with top covers 4; the fastening structure 3 comprises a limiting groove 31 arranged on the inner side of the side baffle 1, and the ends of the beams 2 are correspondingly inserted into the limiting grooves 31, and the ends of the beams 2 are provided with connecting plates 5, which are adhered to and fixedly connected to the inner groove walls of the limiting grooves 31, and an elastic plate group 6 is provided between the end faces of the beams 2 and the inner groove walls of the limiting grooves 31.

[0016] This solution uses a fastening structure to achieve a fixed connection between the crossbeam and the bottom of the two side baffles, and constrains the top of the two side baffles through the top cover, thereby forming a cable layout space around the two side baffles, the crossbeam and the top cover. The crossbeam generates a lateral outward push force to keep the two side baffles in a relatively parallel position, and the top cover provides an inward restraining force to prevent the two side panels from opening to both sides when they become loose. In the fastening structure, the limit groove is used to constrain the positional relationship between the end of the crossbeam and the side baffle. When the end of the crossbeam is stuck in the groove, the crossbeam can only move in a single direction. By setting a connecting piece as the main connecting part, the connecting piece fits with the inner groove surface of the limit groove, that is, fits with the inner surface of the side baffle, and is fixed by welding or screwing to ensure that the two are always fit and fixed. The elastic plate group is used to provide an outward elastic thrust to the side baffle. When the connecting plate is fixed and constrained in the limit groove by bolts, the elastic plate group is constrained by the side baffle and is located in the groove in a retracted state, and partially rests on the side baffle. When a gap is generated between the end of the beam and the side baffle, the elastic plate group will slowly open from the retracted state and form a stable triangular space structure with the side baffle, thereby avoiding looseness caused by the existence of local gaps, thereby achieving the purpose of reducing the vibration amplitude of the side baffle after the gap is generated, and maintaining the stability of the overall bridge structure.

[0017] The limiting groove 31 extends along the length of the side guard 1. The ends of the plurality of crossbeams 2 are fixedly connected to the limiting groove 31 at equal intervals along the groove direction. The upper and lower inner groove surfaces of the limiting groove 31 are respectively aligned with the upper and lower end surfaces of the crossbeam 2. This constrains the vertical relative displacement between the ends of the crossbeam and the side guard. The connecting pieces 5 are symmetrically arranged on both sides of the ends of the crossbeam 2. This constrains the horizontal relative displacement between the ends of the crossbeam and the side guard. This ensures that when the locking bolts are worn, the crossbeam will not become loose due to relative misalignment and slippage with the side guard.

[0018] The elastic sheet group 6 includes two symmetrically arranged elastic sheets, each of which includes a swinging portion 61 and a limiting portion 62. The swinging portion 61 is fixedly connected to the end of the beam 2, and the limiting portion 62 is located at the end of the swinging portion 61 away from the beam to which it is connected. When the connecting sheet is in contact with the limiting groove 31, the limiting portions 62 of the two elastic sheets are in contact with each other. The swinging portion is used to provide elastic deformation force. It is constrained by external forces and deflects to a certain degree, thereby accumulating a certain amount of elastic potential energy, but it cannot escape the locking force of the locking screw. As the gap is generated, the elastic potential energy will gradually be released, causing the swinging portion to gradually reset, that is, the end of the beam extends outward, thereby ensuring that the end of the beam is always in contact with the inner surface of the side baffle, thereby avoiding the generation of gaps and achieving the purpose of preventing loosening. During regular maintenance, replacing the bolts at the extended beam can maintain the stability of the bridge structure for a long time.

[0019] Preferably, the crossbeam 2 is constructed of a square tube structure, and the connecting piece 5 and the elastic piece group 6 are integrally formed with the crossbeam 2. The connecting piece 5 is folded outward relative to the tube walls on both sides of the crossbeam 2, and the elastic piece group 6 is folded inward relative to the upper and lower tube walls of the crossbeam 2. The aforementioned functions and effects are achieved by utilizing the inherent strength and toughness of the metal tube. Furthermore, the integrally formed structure provides increased strength and improved integrity. This ensures the stability of the overall bridge structure and prevents the spread of loosening in the event of localized screws or welds.

[0020] The top cover 4 is provided with an inward-bending flange 41, with the flanges 41 respectively attached to the top outer surfaces of the two side panels 1. The inward-bending flanges provide an inward restraining force to maintain the relative parallel position of the two side panels. They also provide a certain elastic range, so that when a local gap occurs, the distance between the two side panels can be appropriately expanded to maintain the stability of the overall structure.

[0021] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A ladder-type cable tray with adaptive splicing gap, characterized by: The invention comprises two side baffles (1) and a plurality of crossbeams (2) horizontally arranged between the two side baffles (1), wherein the ends of the crossbeams (2) are fixedly connected to the inner wall surfaces of the side baffles (1) via fastening structures (3); the crossbeams (2) are fixedly connected to the bottom sides of the side baffles (1), and top covers (4) are buckled on the top ends of the two side baffles (1); the fastening structures (3) comprise limiting grooves (31) arranged on the inner sides of the side baffles (1), the ends of the crossbeams (2) are correspondingly inserted into the limiting grooves (31), the ends of the crossbeams (2) are provided with connecting pieces (5), the connecting pieces (5) are attached to and fixedly connected to the inner groove walls of the limiting grooves (31), and an elastic piece group (6) is provided between the end faces of the crossbeams (2) and the inner groove walls of the limiting grooves (31).

2. The ladder-type cable tray with adaptive splicing gap according to claim 1, characterized in that: The limiting groove (31) is extended along the length direction of the side baffle (1), and the ends of the plurality of cross beams (2) are fixedly connected in the limiting groove (31) at equal intervals along the groove direction, and the upper and lower inner groove surfaces of the limiting groove (31) are respectively fitted with the upper and lower end surfaces of the cross beam (2).

3. The ladder-type cable tray with adaptive splicing gap according to claim 2, characterized in that: The connecting pieces (5) are symmetrically arranged on both sides of the end of the crossbeam (2).

4. The ladder-type cable tray with adaptive splicing gap according to claim 3, characterized in that: The elastic sheet group (6) includes two symmetrically arranged elastic sheets, each of which includes a swinging portion (61) and a limiting portion (62). The swinging portion (61) is fixedly connected to the end of the crossbeam (2), and the limiting portion (62) is located at an end of the swinging portion (61) away from the crossbeam to which it is connected. When the connecting sheet is in contact with the limiting groove (31), the limiting portions (62) of the two elastic sheets are in contact with each other.

5. The ladder-type cable tray with adaptive splicing gap according to claim 4, characterized in that: The crossbeam (2) adopts a square tube structure, and the connecting piece (5) and the elastic piece group (6) are both integrally formed with the crossbeam (2); the connecting piece (5) is folded outward relative to the tube walls on both sides of the crossbeam (2), and the elastic piece group (6) is folded inward relative to the upper and lower tube walls of the crossbeam (2).

6. The ladder-type cable tray with adaptive splicing gap according to claim 5, characterized in that: The top cover (4) is provided with an inward-buckling flange (41), and the flanges (41) on both sides are respectively fitted to the top outer side surfaces of the two side baffles (1).

Images