A quick connection device for cable trays

Abstract

The present invention relates to the technical field of connection devices, and discloses a quick connection device for cable trays, including a number of tray bodies, a first connecting plate and a second connecting plate. The first connecting plate is arranged between two tray bodies. A plurality of grooves are provided on both sides of the tray body, and a plugging hole is provided between two grooves. A plurality of through holes are provided on one side of the first connecting plate, and a plugging block is fixedly connected to the inner wall of one side of the through hole. The plugging block is plugged with the plugging hole, and the plugging block is of a wavy structure. Tray mounting holes are provided on both sides of the tray body and one side of the first connecting plate, and a connecting screw is plugged between two tray mounting holes. A fixing nut is threadedly sleeved at one end of the connecting screw. A plurality of clamping holes are provided at the bottom of the tray body. The present invention can quickly complete the connection between two tray bodies, and can also make the connection between two tray bodies firmer, improving the stability of the tray connection.

Description

Technical Field

[0001] The present invention relates to the technical field of connection devices, and particularly to a quick connection device for cable trays. Background Art

[0002] A cable tray is a tool for facilitating the management of lines and sorting out some pipelines, enabling numerous lines in a building to be arranged neatly and orderly, and also playing a role in supporting a large number of lines, making the appearance of a large number of cumbersome lines more beautiful. A quick connection device for cable trays is a device used for connecting cable trays. During the use of the quick connection device for cable trays, it is found that it still cannot meet the actual requirements.

[0003] Currently, most of the existing quick connection devices for cable trays have the following deficiencies: during the connection and fixation of cable trays, the assembly operation is complex, the cable trays cannot be quickly connected, the stability is poor, affecting the connection efficiency and service effect of cable trays. In summary, most of the existing quick connection devices for cable trays still cannot well meet the actual needs. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a quick connection device for cable trays, mainly to solve the problems that during the connection and fixation of cable trays, the assembly operation is complex, the cable trays cannot be quickly connected, the stability is poor, affecting the connection efficiency and service effect of cable trays.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A quick connection device for cable trays includes a plurality of cable tray bodies, a first connecting plate, and a second connecting plate. The first connecting plate is arranged between two cable tray bodies. A plurality of grooves are provided on both sides of the cable tray body, and an insertion hole is provided between two grooves. A plurality of through holes are provided on one side of the first connecting plate, and an insertion block is fixedly connected to the inner wall of one side of the through hole. The insertion block is inserted into the insertion hole, and the insertion block is of a wavy structure. Cable tray mounting holes are provided on both sides of the cable tray body and one side of the first connecting plate. A connecting screw is inserted between two cable tray mounting holes, and a fixing nut is threadedly sleeved on one end of the connecting screw. A plurality of clamping holes are provided at the bottom of the cable tray body. A plurality of clamping plates are integrally formed on the top of the second connecting plate. The clamping plates are clamped with the clamping holes. A convex block is integrally formed on both sides of the second connecting plate. A clamping groove is provided at the bottom of the second connecting plate, and inclined grooves are provided on both sides of the clamping groove.

[0009] Further, grounding connection holes are provided on both sides of the bridge body, and a plurality of heat dissipation holes are provided on both sides of the bridge body.

[0010] On the basis of the foregoing solution, flame retardant plates are fixedly connected to the inner walls on both sides of the bridge body.

[0011] As a further solution of the present invention, a plurality of reinforcing ribs are fixedly connected to the connection between the bottom inner wall and the side inner wall of the bridge body.

[0012] Further, a dust-proof plate is provided on the top of the bridge body, and fixing card holes are provided on the top of the bridge body.

[0013] On the basis of the foregoing solution, two buckles are integrally formed at the bottom of the dust-proof plate, and the buckles are clamped with the top of the bridge body.

[0014] As a further solution of the present invention, two rectangular holes are provided on the top of the dust-proof plate, an insertion shaft is inserted into the rectangular holes, a rotary clamping block is fixedly connected to the bottom end of the insertion shaft, the rotary clamping block passes through the fixing card hole and is clamped with the top of the bridge body, a spring is sleeved on the outer wall of the insertion shaft, a fixed retaining ring is fixedly connected to the bottom end of the spring, and the fixed retaining ring is in contact with the top of the dust-proof plate.

[0015] Further, a knob is fixed to the top end of the insertion shaft.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a cable bridge quick connection device, which has the following beneficial effects:

[0018] 1. In the present invention, the insertion block is inserted into the groove, then the first connecting plate is pushed to one side so that the insertion block is inserted into the insertion hole, and then, the connecting screw is passed through the bridge installation holes of the bridge body and the first connecting plate, and the fixing nut is tightened, so that the connection between the two bridge bodies can be quickly completed, and this detachable design can be reused, saving costs, and moreover, this connection method is not only applicable to bridge connection, but also applicable to the connection of various building joints, and the application range is relatively large.

[0019] 2. In the present invention, the buckle of the second connecting plate is snapped into the card hole, and then the second connecting plate is pushed to one side so that the convex block is snapped into the card slot along the inclined surface groove, so as to fix the second connecting plate at the bottom of the connection between the two bridge bodies, thereby making the connection between the two bridge bodies more firm and improving the stability of the bridge connection.

[0020] 3. In the present invention, the setting of the flame retardant plate can delay the spread speed of the fire, reduce the length of cable damage, and at the same time, win time for the arrival of rescue personnel and reduce the damage degree of the fire.

[0021] 4. In the present invention, the insertion shaft is inserted into the rectangular hole, so that the fixed retaining ring blocks the top of the dust-proof plate, and then the spring contracts. Then, under the elastic action of the spring, the rotating clamping block passes through the rectangular hole and the fixed clamping hole, and then the knob is rotated so that the rotating clamping block is clamped with the top of the cable tray body, thereby firmly covering the dust-proof plate on the top of the cable tray body, and further playing a dust-proof role. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 7 is a schematic perspective view of Embodiment 1 of a quick connection device for a cable tray proposed by the present invention;

[0023] Figure 2 FIG. 11 is an exploded schematic view of Embodiment 1 of a quick connection device for a cable tray proposed by the present invention;

[0024] Figure 3 FIG. 15 is a schematic bottom view of Embodiment 1 of a quick connection device for a cable tray proposed by the present invention;

[0025] Figure 4 FIG. 19 is a schematic perspective view of Embodiment 2 of a quick connection device for a cable tray proposed by the present invention;

[0026] Figure 5 FIG. 23 is an exploded schematic view of Embodiment 2 of a quick connection device for a cable tray proposed by the present invention.

[0027] In the figure: 1, cable tray body; 2, groove; 3, insertion hole; 4, first connecting plate; 5, through hole; 6, insertion block; 7, cable tray installation hole; 8, connecting screw; 9, fixed nut; 10, clamping hole; 11, second connecting plate; 12, clamping plate; 13, convex block; 14, clamping groove; 15, inclined plane groove; 16, grounding connection hole; 17, flame retardant plate; 18, heat dissipation hole; 19, reinforcing rib; 20, fixed clamping hole; 21, dust-proof plate; 22, buckle; 23, rectangular hole; 24, rotating clamping block; 25, insertion shaft; 26, knob; 27, spring; 28, fixed retaining ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] Refer to Figures 1 - 3, A quick connection device for cable trays, comprising a number of tray bodies 1, a first connecting plate 4 and a second connecting plate 11. The first connecting plate 4 is arranged between two tray bodies 1. A plurality of grooves 2 are provided on both sides of the tray body 1, and a plugging hole 3 is provided between two grooves 2. A plurality of through holes 5 are provided on one side of the first connecting plate 4, and a plugging block 6 is welded to the inner wall of one side of the through hole 5. The plugging block 6 is plugged into the plugging hole 3, and the plugging block 6 is of a wavy structure, so that the connection between the plugging block 6 and the plugging hole 3 is firmer and not easy to loosen. Tray mounting holes 7 are provided on both sides of the tray body 1 and one side of the first connecting plate 4. A connecting screw 8 is plugged between two tray mounting holes 7, and a stable triangular structure is formed by every two plugging blocks 6 and the connecting screw 8, further enhancing the stability of the connection. A fixing nut 9 is threadedly sleeved at one end of the connecting screw 8. The two tray bodies 1 are butted together. Then, the plugging block 6 is inserted into the groove 2, and then the first connecting plate 4 is pushed to one side so that the plugging block 6 is plugged into the plugging hole 3. Next, the connecting screw 8 is passed through the tray mounting holes 7 of the tray body 1 and the first connecting plate 4, and the fixing nut 9 is tightened, thus completing the connection between the two tray bodies 1. A plurality of clamping holes 10 are provided at the bottom of the tray body 1, and a plurality of clamping plates 12 are integrally formed at the top of the second connecting plate 11. The clamping plates 12 are clamped with the clamping holes 10. Convex blocks 13 are integrally formed on both sides of the second connecting plate 11, and a clamping groove 14 is provided at the bottom of the second connecting plate 11. Inclined groove 15 are provided on both sides of the clamping groove 14. The buckle 22 of the second connecting plate 11 is clamped into the clamping hole 10, and then the second connecting plate 11 is pushed to one side so that the convex block 13 is clamped into the clamping groove 14 along the inclined groove 15, thereby fixing the second connecting plate 11 at the bottom of the connection between the two tray bodies 1, and further making the connection between the two tray bodies 1 more firm.

[0031] Ground connection holes 16 are provided on both sides of the tray body 1, which facilitate the passing out of the ground wire from the tray body 1. A plurality of heat dissipation holes 18 are provided on both sides of the tray body 1, which facilitate the heat dissipation when the cable is working. Flame retardant plates 17 are bonded to the inner walls on both sides of the tray body 1. When a fire is caused by a cable short circuit, the flame retardant plates 17 can slow down the spread speed of the fire. A plurality of reinforcing ribs 19 are welded at the connection between the bottom inner wall and the side inner wall of the tray body 1.

[0032] Working principle of this embodiment: When in use, first, dock two bridge frame bodies 1 together. Then, insert the insertion block 6 into the groove 2, and then push the first connecting plate 4 to one side so that the insertion block 6 is inserted into the insertion hole 3. Next, pass the connecting screw 8 through the bridge installation hole 7 of the bridge frame body 1 and the first connecting plate 4, and tighten the fixing nut 9 to complete the connection between the two bridge frame bodies 1. Then, snap the buckle 22 of the second connecting plate 11 into the clamping hole 10, and then push the second connecting plate 11 to one side so that the convex block 13 is snapped into the card slot 14 along the inclined surface groove 15, thereby fixing the second connecting plate 11 at the bottom of the connection between the two bridge frame bodies 1, and further making the connection between the two bridge frame bodies 1 more firm. The heat dissipation holes 18 facilitate the heat dissipation of the cable during operation. When a fire is caused by a cable short circuit, the flame retardant plate 17 can delay the spread speed of the fire, reduce the damaged length of the cable, and at the same time, win time for the arrival of rescue personnel.

[0033] Embodiment 2

[0034] Refer to Figures 4 - 5 , a quick connection device for a cable tray, including a dust-proof plate 21 provided on the top of the bridge frame body 1 for dust-proofing, a fixed clamping hole 20 provided on the top of the bridge frame body 1, two buckles 22 integrally formed at the bottom of the dust-proof plate 21, the buckles 22 being clamped with the top of the bridge frame body 1, two rectangular holes 23 provided on the top of the dust-proof plate 21, an insertion shaft 25 inserted into the rectangular holes 23, a rotating clamping block 24 welded to the bottom end of the insertion shaft 25, the rotating clamping block 24 passing through the fixed clamping hole 20 and being clamped with the top of the bridge frame body 1, a spring 27 sleeved on the outer wall of the insertion shaft 25, a fixed retaining ring 28 welded to the bottom end of the spring 27, the fixed retaining ring 28 being in contact with the top of the dust-proof plate 21, a knob 26 fixed to the top end of the insertion shaft 25. Press the dust-proof plate 21 downward to deform the buckle 22, so that the buckle 22 is clamped with the top of the bridge frame body 1. Then, insert the insertion shaft 25 into the rectangular hole 23, so that the fixed retaining ring 28 blocks the top of the dust-proof plate 21, and further causes the spring 27 to contract. Then, under the elastic action of the spring 27, the rotating clamping block 24 passes through the rectangular hole 23 and the fixed clamping hole 20, and then rotate the knob 26 so that the rotating clamping block 24 is clamped with the top of the bridge frame body 1, thereby firmly covering the dust-proof plate 21 on the top of the bridge frame body 1.

[0035] Working principle of this embodiment: When in use, first, cover the dust-proof plate 21 on the top of the bridge body 1. Then, press down the dust-proof plate 21 to deform the buckle 22, so that the buckle 22 is clamped with the top of the bridge body 1. Next, insert the insertion shaft 25 into the rectangular hole 23, so that the fixed retaining ring 28 blocks on the top of the dust-proof plate 21, and then the spring 27 contracts. Then, under the elastic action of the spring 27, the rotating block 24 passes through the rectangular hole 23 and the fixed clamping hole 20, and then rotate the knob 26 to make the rotating block 24 clamped with the top of the bridge body 1, so as to firmly cover the dust-proof plate 21 on the top of the bridge body 1.

[0036] All the electrical components mentioned in this article are electrically connected to the external main controller and 220V mains, and the main controller can be a conventional known device such as a computer for control.

[0037] In the description of this article, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] In the description of this article, it should be noted that relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid connection device for cable trays, comprising a number of tray bodies (1), a first connecting plate (4) and a second connecting plate (11). Characterized in that, The first connecting plate (4) is arranged between two tray bodies (1). A plurality of grooves (2) are provided on both sides of the tray body (1). An insertion hole (3) is provided between two grooves (2). A plurality of through holes (5) are provided on one side of the first connecting plate (4). An insertion block (6) is fixedly connected to the inner wall of one side of the through hole (5). The insertion block (6) is inserted into the insertion hole (3), and the insertion block (6) is of a wavy structure. Tray mounting holes (7) are provided on both sides of the tray body (1) and one side of the first connecting plate (4). A connecting screw (8) is inserted between two tray mounting holes (7). A fixing nut (9) is threadedly sleeved on one end of the connecting screw (8). A plurality of clamping holes (10) are provided at the bottom of the tray body (1). A plurality of clamping plates (12) are integrally formed at the top of the second connecting plate (11). The clamping plates (12) are clamped with the clamping holes (10). A convex block (13) is integrally formed on both sides of the second connecting plate (11). A clamping groove (14) is provided at the bottom of the second connecting plate (11). Inclined grooves (15) are provided on both sides of the clamping groove (14).

2. The rapid connection device for cable trays according to claim 1, Characterized in that, Earthing connection holes (16) are provided on both sides of the tray body (1). A plurality of heat dissipation holes (18) are provided on both sides of the tray body (1).

3. The rapid connection device for cable trays according to claim 1, Characterized in that, Flame retardant plates (17) are fixedly connected to the inner walls on both sides of the tray body (1).

4. The rapid connection device for cable trays according to claim 1, Characterized in that, A plurality of reinforcing ribs (19) are fixedly connected to the connection part between the inner wall of the bottom and the inner wall of the side of the tray body (1).

5. The rapid connection device for cable trays according to claim 1, Characterized in that, A dust-proof plate (21) is provided at the top of the tray body (1). Fixing clamping holes (20) are provided at the top of the tray body (1).

6. The rapid connection device for cable trays according to claim 5, Characterized in that, Two clamping buckles (22) are integrally formed at the bottom of the dust-proof plate (21). The clamping buckles (22) are clamped with the top of the tray body (1).

7. The rapid connection device for cable trays according to claim 6, Characterized in that, Two rectangular holes (23) are provided at the top of the dust-proof plate (21). An insertion shaft (25) is inserted into the rectangular holes (23). A rotating clamping block (24) is fixedly connected to the bottom end of the insertion shaft (25). The rotating clamping block (24) passes through the fixing clamping hole (20) and is clamped with the top of the tray body (1). A spring (27) is sleeved on the outer wall of the insertion shaft (25). A fixing retaining ring (28) is fixedly connected to the bottom end of the spring (27). The fixing retaining ring (28) contacts the top of the dust-proof plate (21).

8. The rapid connection device for cable trays according to claim 7, Characterized in that, A knob (26) is fixed to the top end of the insertion shaft (25).

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