Cable bridge connecting structure

Abstract

The utility model discloses a cable bridge connecting structure which comprises a connecting area at the splicing position of bridges and connecting pieces correspondingly attached to the connecting area, and the two connecting pieces clamp the splicing position of the bridges through screwing fit of bolts and nuts. Sliding grooves are formed in the connecting area and the connecting piece in an aligned mode, the sliding grooves of the connecting area and the connecting piece are arranged in a relatively orthogonal mode, sliding blocks are arranged in the sliding grooves in a sliding mode in the groove direction, and assembling holes allowing the bolts to penetrate through are formed in the centers of the sliding blocks. Elastic pieces are clamped in gaps between the two sides of the sliding block and the sliding grooves. The utility model solves the problem that the connecting part of the cable bridge is easy to loosen under the vibration action of external force.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridges, in particular to a cable bridge connection structure. Background Art

[0002] Cable trays are used to suspend, secure, and protect cables. They are typically composed of multiple sections connected together. A common connection method involves directly bolting two sections together using nuts and bolts. External vibrations at the joints can cause wear and tear between the sections, and over time, the connections can become loose. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a cable tray connection structure to solve the problem that the cable tray connection part is easily loosened due to external force vibration, thereby extending the service life of the connection structure.

[0004] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a cable tray connection structure, including a connection area at the bridge splicing point, and a connecting piece corresponding to the connection area, and the two connecting pieces are tightened and matched with bolts and nuts to clamp the bridge splicing point; the connection area and the connecting piece are aligned with a slide groove, and the two slide grooves are relatively orthogonal, and a slider is provided in the slide groove for sliding along the groove, and an assembly hole for the bolt to pass through is provided in the center of the slider; an elastic piece is provided in the gap between the two sides of the slider and the slide groove.

[0005] Furthermore, the slide groove on the connecting plate is a first slide groove, the slider in the first slide groove is a first slider, and the groove direction of the first slide groove is set along the approaching direction of the bridge frame splicing; the slide groove in the connecting area is a second slide groove, the slider in the second slide groove is a second slider, and the groove direction of the second slide groove is set perpendicular to the groove direction of the first slide groove.

[0006] Furthermore, the connecting member includes a connecting plate, and an elastic pad is sandwiched between the connecting plate and the bridge.

[0007] Furthermore, the elastic pad and the elastic member are integrally provided.

[0008] Furthermore, the slider includes a sliding part in the middle that cooperates with the slide groove, and limiting parts are provided on both sides of the sliding part. The limiting parts are arranged to fit the end faces of the notches on both sides of the slide groove, and the elastic pad is provided with limiting holes that are adapted to the limiting parts.

[0009] Furthermore, the positions of the slide grooves on the two bridge frames spliced together are symmetrically arranged about the splicing seam, and the positions of the multiple slide grooves on the bridge frame on one side are triangularly arranged.

[0010] Beneficial effect: The cable tray connection structure of the utility model avoids direct contact between two mutually spliced trays and between the two trays and bolts by arranging elastic parts and elastic pads, thereby weakening external forces, thereby reducing wear and effectively extending the service life of the tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an exploded schematic diagram of the overall structure of an embodiment of the utility model;

[0012] Figure 2 This is a structural diagram of the matching portion of the slide groove and the slider in one embodiment of the utility model;

[0013] Figure 3 The figure is a schematic cross-sectional view of the tightening part of the bolt and nut according to an embodiment of the present invention. DETAILED DESCRIPTION

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

[0015] As attached Figure 1-3 The cable tray connection structure described herein includes a connection area 2 at the joint of the bridge 1, and a connecting piece 3 corresponding to the connection area 2, and the two connecting pieces 3 are tightened and matched with bolts 4 and nuts 5 to clamp the joint of the bridge 1; a slide groove is arranged on the connection area 2 and the connecting piece 3, and the slide grooves of the two are relatively orthogonal, and a slider is arranged in the slide groove to slide along the groove, and an assembly hole 7 for the bolt 4 to pass through is arranged in the center of the slider; an elastic piece 8 is provided in the gap between the two sides of the slider and the slide groove, and the elastic pieces 8 on both sides squeeze and limit the slider to the center position of the slide groove.

[0016] This solution clamps the joint of the cable bridge by connecting pieces on both sides, and uses bolts and nuts to lock and connect the two connecting pieces with the cable bridge, thereby achieving the effect of fixing and connecting the two sections of cable bridge. The mounting holes for the bolts on the connecting piece and the cable bridge are set as strip-shaped slides, and sliders are used as matching media. By sleeves of corresponding multiple sliders on the same bolt and locking them with nuts, a complete connecting shaft is formed. The connecting shaft is slidably matched with multiple corresponding slides at the same time, and the corresponding sliders are elastically limited to the center position of the slides by elastic pieces. When the connection is subjected to external force vibration in any direction, so that there is a relative movement trend between the connecting piece and the cable bridge, the movement trend can be decomposed into two slide direction movements, and the elastic pieces in each slide are used to offset them, achieving the effect of shock absorption, thereby reducing the mutual displacement amplitude between the connection surfaces, thereby reducing the wear, avoiding the problem of loose connection caused by the increase of gap due to excessive wear, and effectively extending the service life of the connection structure.

[0017] The sliding groove on the connecting plate 33 is the first sliding groove 31, and the slider in the first sliding groove 31 is the first slider 32. The groove direction of the first sliding groove 31 is set along the direction of the cable tray 1 splicing and approaching. The sliding groove in the connecting area 2 is the second sliding groove 21, and the slider in the second sliding groove 21 is the second slider 22. The groove direction of the second sliding groove 21 is set perpendicular to the groove direction of the first sliding groove 31. This can meet the requirements of external force decomposition and shock absorption when two connected cable tray sections have a tendency to move away from or towards each other, and when the splicing surfaces have a tendency to move relative to each other.

[0018] The connector 3 includes a connecting plate 33, with an elastic pad 6 sandwiched between the connecting plate 33 and the bridge 1. When the elastic member is used for shock absorption, the slider in the slide groove will produce a certain displacement along the groove toward either end, thereby inevitably causing a certain relative misalignment and translation between the bridge and the connecting plate. By adding the elastic pad, the static friction between the elastic pad and the metal surface after being squeezed is greater than the static friction when the metal surface is in direct contact. Therefore, the sliding friction generated by the relative displacement movement is converted into internal elastic deformation of the elastic pad, thereby reducing wear on the surface of the metal structure. Moreover, due to the shock absorption effect of the elastic member, the relative displacement is small, and the stress and torsion loss on the elastic pad is also small, effectively ensuring the service life of the connection structure.

[0019] The elastic pad 6 and the elastic member 8 are integrally formed, enhancing the overall strength of the elastic shock-absorbing portion. By integrally forming the elastic member from the same material, the shock-absorbing effect of the elastic member is transferred to the elastic pad, resulting in a more effective shock absorption effect. The entire structure can be made of highly wear-resistant rubber or other composite elastic and wear-resistant materials, further extending the service life of the connection structure.

[0020] The slider includes a sliding portion in the middle that cooperates with the chute, with limiting portions provided on either side of the sliding portion. The limiting portions are arranged to fit in the end faces of the notches on either side of the chute, and the elastic pad 6 is provided with limiting holes adapted to fit in the limiting portions. The limiting portions on either side can be configured as disc structures, so that the mating surfaces between them and the elastic pads are smooth cylindrical surfaces. The limiting portions are wrapped around the limiting holes, and the elastic pads achieve omnidirectional elastic limiting of the two mutually engaged sliders in the circumferential direction, thereby further achieving an all-round shock absorption effect. The limiting portions also constrain the relative motion between the slider and the chute, ensuring that the slider slides only along the groove direction, preventing the slider from shaking relative to the ends of the chute, and ensuring the stability of the connection.

[0021] The positions of the slide grooves on the two bridge frames 1 spliced together are symmetrically arranged about the splicing seam, which is conducive to producing a relatively symmetrical shock-absorbing effect to offset external forces. The multiple slide groove positions on the bridge frame 1 on one side are arranged in a triangular pattern, and the stability of the triangular distribution is used to resist the relative torsional force between the cable bridge and the connecting plate.

[0022] 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 cable tray connection structure, characterized in that: It comprises a connection area (2) at the splicing point of the bridge frame (1), and a connection piece (3) corresponding to and fitted with the connection area (2), wherein the two connection pieces (3) are fastened together by bolts (4) and nuts (5) to clamp the splicing point of the bridge frame (1); The connecting area (2) and the connecting member (3) are aligned with each other and are provided with a sliding groove, and the sliding grooves of the two are relatively orthogonal; a slider is provided in the sliding groove to slide along the groove, and an assembly hole (7) for the bolt (4) to pass through is provided at the center of the slider, and an elastic member (8) is provided in the gap between the two sides of the slider and the sliding groove.

2. A cable tray connection structure according to claim 1, characterized in that: The connecting member (3) includes a connecting plate (33), the sliding groove on the connecting plate (33) is a first sliding groove (31), the sliding block in the first sliding groove (31) is a first sliding block (32), and the groove direction of the first sliding groove (31) is arranged along the splicing direction of the bridge frame (1); The sliding groove of the connecting area (2) is a second sliding groove (21), the slider in the second sliding groove (21) is a second slider (22), and the groove direction of the second sliding groove (21) is arranged perpendicular to the groove direction of the first sliding groove (31).

3. A cable tray connection structure according to claim 2, characterized in that: An elastic pad (6) is sandwiched between the connecting plate (33) and the bridge frame (1).

4. A cable tray connection structure according to claim 3, characterized in that: The elastic pad (6) and the elastic member (8) are integrally arranged.

5. A cable tray connection structure according to claim 4, characterized in that: The slider comprises a sliding portion in the middle portion which cooperates with the slide groove, and limiting portions are provided on both sides of the sliding portion. The limiting portions are arranged to fit with the end faces of the notches on both sides of the slide groove, and the elastic pad (6) is provided with a limiting hole adapted to the limiting portion.

6. A cable tray connection structure according to claim 5, characterized in that: The positions of the slide grooves on the two mutually spliced bridge frames (1) are symmetrically arranged about the splicing seam, and the positions of the multiple slide grooves on one side of the bridge frame (1) are triangularly arranged.

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