A seismic-resistant cable tray

Abstract

The utility model discloses an earthquake-resistant cable tray, which relates to the technical field of cable tray installation, including a stud, the lower end of the outer wall of the stud is connected with a connecting block and a support rod, the support rod limits the lower end face of the cable tray, the outer wall of the connecting block is connected with three bracket assemblies, the bracket assemblies and the studs form three triangular structures; the number of the connecting blocks is two, and the two connecting blocks are respectively connected to the two studs and are symmetrically arranged; an upper clamping assembly is rotatably connected between the two connecting blocks. The utility model sets an upper clamping assembly, and the rotating plate and the clamping plate are in an L-shaped structure. When the upper clamping assembly is rotated to the lowest point, the top of the cable tray can be effectively limited. When the top cover of the cable tray needs to be opened, the upper clamping assembly can be rotated upward by releasing the limit of the upper clamping assembly by the limiting unit, thereby facilitating the opening of the upper end cover of the cable tray.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridge installation, in particular to an earthquake-resistant cable bridge. Background Art

[0002] When fixing the cable tray, use the hanger to fix it, and then install the corresponding seismic hanger according to the seismic design specifications of the building mechanical and electrical engineering. The triangular stable structure between the seismic hanger and the screw rod can comprehensively bear the longitudinal and lateral forces during the earthquake, changing the dynamic characteristics of the cable tray system from soft to rigid.

[0003] In the prior art, two cross bars in contact with the cable tray limit the upper and lower surfaces of the cable tray. However, in actual use, it is found that if the cables in the cable tray need to be inspected and maintained, the top cover of the cable tray cannot be opened due to the limitation of the upper cross bar, and the anti-seismic hanger needs to be disassembled, or the upper cross bar needs to be adjusted upward, which is not convenient enough. Utility Model Content

[0004] The purpose of the utility model is to provide a seismic-resistant cable tray in order to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an earthquake-resistant cable tray, comprising a stud, a connection block and a support rod are connected to the lower end of the outer wall of the stud, the support rod limits the lower end surface of the cable tray, the outer wall of the connection block is connected to three bracket assemblies, and the bracket assemblies and the stud form three triangular structures;

[0006] The number of the connecting blocks is two, and the two connecting blocks are respectively connected to the two studs and are symmetrically arranged;

[0007] An upper clamping assembly is rotatably connected between the two connecting blocks, and the upper clamping assembly rotated downward to the lowest position is used to clamp and limit the top surface of the cable tray, and the upper clamping assembly rotated upward to the lowest position is separated from the top of the cable tray;

[0008] The connecting block is connected to the upper clamping assembly rotated to the lowest point via a limiting unit, and the limiting unit is used to limit the upper clamping assembly at the lowest point.

[0009] As a further solution of the utility model: the bracket assembly includes a rotating seat on three surfaces of one end of the connecting block, the inner side of the upper end of the rotating seat is rotatably connected to a connecting frame, and the top of the connecting frame is connected to a fixed seat connected to the top wall;

[0010] The connecting frame and the fixing seat are detachably connected via a bolt assembly.

[0011] As a further solution of the utility model: the upper clamping assembly includes a connecting shaft rotatably connected between the two connecting blocks, the outer wall of the connecting shaft is fixedly connected to a rotating plate, and the bottom of one end of the rotating plate is integrally formed with an extrusion plate protruding downward, and the cross-section of the connecting shaft and the extrusion plate is an "L"-shaped structure.

[0012] As a further solution of the utility model: the limiting unit includes a mounting plate connected to the connecting block, a through hole is provided on the mounting plate, and a No. 1 screw hole is provided on the rotating plate. The rotating plate rotated to the lowest point drives the No. 1 screw hole to align with the through hole, and the No. 1 screw hole is threadedly connected to a limiting bolt.

[0013] As a further solution of the utility model: the outer wall of the stud is sleeved on the reinforcement sleeve, the inner wall of the reinforcement sleeve is fixedly connected with a fixing block, the fixing block is provided with a No. 2 screw hole, the inner wall of the No. 2 screw hole is connected with a locking bolt, and the locking bolt in a tightened state abuts against the outer wall of the stud.

[0014] As a further solution of the utility model: circular holes are provided at the connection positions of the connecting frame and the fixing seat, and fixing bolts pass through the circular holes and are connected with nuts.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting up an upper clamping assembly, the rotating plate and the clamping plate form an L-shaped structure. When the upper clamping assembly is rotated to the lowest point, the top of the cable tray can be effectively limited. When the top cover of the cable tray needs to be opened, the upper clamping assembly can be rotated upward by releasing the limit of the limiting unit on the upper clamping assembly, thereby facilitating the opening of the upper end cover of the cable tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 For the utility model Figure 1 A partial enlarged view of the middle part;

[0019] Figure 3 This is a structural schematic diagram of another viewing angle of the utility model;

[0020] Figure 4 It is a partial enlarged view of point B in 3 of the present utility model.

[0021] In the figure: 1. stud; 2. reinforcement sleeve; 3. fixing block; 4. locking bolt; 5. connecting block; 6. support rod; 7. rotating seat; 8. connecting frame; 9. fixing seat; 10. cable tray; 11. rotating plate; 12. connecting shaft; 13. extrusion plate; 14. mounting plate; 15. limiting bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 to Figure 4 In the embodiment of the utility model, a seismic-resistant cable tray comprises a stud 1, the lower end of the outer wall of the stud 1 is connected with a connecting block 5 and a supporting rod 6, the supporting rod 6 limits the lower end surface of the cable tray 10, the outer wall of the connecting block 5 is connected with three bracket assemblies, and the bracket assemblies and the stud 1 form three triangular structures; the number of connecting blocks 5 is two, and the two connecting blocks 5 are respectively connected to the two studs 1, and are symmetrically arranged; an upper clamping assembly is rotatably connected between the two connecting blocks 5, and the upper clamping assembly rotated downward to the lowest position is used to clamp and limit the top surface of the cable tray 10, and the upper clamping assembly rotated upward to the lowest position is separated from the top end of the cable tray 10; the connecting block 5 is connected to the upper clamping assembly rotated to the lowest point through a limiting unit, and the limiting unit is used to limit the upper clamping assembly at the lowest point position.

[0024] In this embodiment: when in use, the stud 1 is first fixed to the top wall by an expansion bolt, and then the support rod 6 is fixed to the outer wall of the stud 1 by a nut. At this time, the support rod 6 supports the bottom end of the cable tray 10, and at the same time, the height of the connecting block 5 is adjusted by rotating the nut until the bottom end of the connecting block 5 is flush with the top surface of the cable tray 10, and then the upper clamping assembly is rotated. When the upper clamping assembly is rotated to the lowest point, it contacts the top surface of the cable tray 10 to form a limit, and then the limiting unit is used to limit the upper clamping assembly.

[0025] Please refer to Figure 1 and Figure 3 The bracket assembly includes a rotating seat 7 on three surfaces of one end of the connecting block 5, a connecting frame 8 is rotatably connected to the inner side of the upper end of the rotating seat 7, and the top of the connecting frame 8 is connected to a fixing seat 9 connected to the top wall; the connecting frame 8 and the fixing seat 9 are detachably connected by a bolt assembly, and circular holes are opened at the connecting positions of the connecting frame 8 and the fixing seat 9, and the fixing bolts pass through the circular holes and are connected to the nuts.

[0026] In this embodiment: first, the fixing seat 9 is fixedly connected to a preset position, and fixedly connected to the top wall by expansion bolts, and then the connecting frame 8 is rotated so that one end of the connecting frame 8 contacts the inner side of the fixing seat 9. At this time, a fixing bolt is passed through the round hole, and a nut is used to limit one end of the bolt to complete the fixation. At this time, a triangular structure is formed between the connecting frame 8, the stud 1 and the top wall, which comprehensively bears the longitudinal force and the lateral force during the earthquake, and changes the dynamic characteristics of the cable tray 10 system from soft to rigid.

[0027] Please refer to Figure 1 , Figure 2 and Figure 3 The upper clamping assembly includes a connecting shaft 12 rotatably connected between the two connecting blocks 5, the outer wall of the connecting shaft 12 is fixedly connected to a rotating plate 11, and a downwardly protruding extrusion plate 13 is integrally formed at the bottom of one end of the rotating plate 11, and the cross-section of the connecting shaft 12 and the extrusion plate 13 is an "L"-shaped structure.

[0028] In the present embodiment: during the use of the cable tray 10, when the cable joints in the cable tray 10 have poor contact or other problems, it is necessary to open the top cover of the cable tray 10 for inspection and maintenance. At this time, the contact limiting unit first limits the upper clamping assembly, and then drives the rotating plate 11 and the extrusion plate 13 to rotate upward. At this time, the extrusion plate 13 no longer limits the top cover of the cable tray 10. At the same time, there is a certain gap between the rotating plate 11 and the cable tray 10, so that the top cover of the cable tray 10 can be opened conveniently, thereby achieving the purpose of easy maintenance.

[0029] Please refer to Figure 4 The limiting unit includes a mounting plate 14 connected to the connecting block 5, a through hole is provided on the mounting plate 14, a No. 1 screw hole is provided on the rotating plate 11, and the rotating plate 11 rotated to the lowest point drives the No. 1 screw hole to align with the through hole, and the No. 1 screw hole is threadedly connected to a limiting bolt 15.

[0030] In this embodiment: the rotating plate 11 and the extrusion plate 13 rotated to the lowest point drive the No. 1 screw hole to align with the through hole, and then the limiting bolt 15 passes through the through hole and connects with the No. 1 screw hole to complete the limiting of the upper clamping assembly.

[0031] Please refer to Figure 1 and Figure 3 The outer wall of the stud 1 is sleeved on the reinforcing sleeve 2, and the inner wall of the reinforcing sleeve 2 is fixedly connected with a fixing block 3. A No. 2 screw hole is opened on the fixing block 3, and a locking bolt 4 is connected to the inner wall of the No. 2 screw hole. The locking bolt 4 in the tightened state abuts against the outer wall of the stud 1.

[0032] In this embodiment: the locking bolt 4 is connected to the No. 2 screw hole and tightened. When tightening, the end of the locking bolt 4 presses the outer wall of the stud 1, thereby quickly connecting the reinforcing sleeve 2 to the outer wall of the stud 1, thereby enhancing the rigidity of the stud 1.

[0033] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A seismic-resistant cable tray, comprising a stud (1), wherein the lower end of the outer wall of the stud (1) is connected to a connecting block (5) and a supporting rod (6), characterized in that: The support rod (6) limits the lower end surface of the cable tray (10); the outer wall of the connection block (5) is connected to three bracket assemblies, and the bracket assemblies and the studs (1) form three triangular structures; The number of the connecting blocks (5) is two, and the two connecting blocks (5) are respectively connected to the two studs (1) and are symmetrically arranged; An upper clamping assembly is rotatably connected between the two connecting blocks (5); the upper clamping assembly rotated downward to the lowest position is used to clamp and limit the top surface of the cable tray (10); and the upper clamping assembly rotated upward to the lowest position is separated from the top of the cable tray (10); The connection block (5) is connected to the upper clamping assembly rotated to the lowest point via a limiting unit, and the limiting unit is used to limit the upper clamping assembly to the lowest point position.

2. The earthquake-resistant cable tray according to claim 1, characterized in that: The support assembly comprises a rotating seat (7) on three surfaces of one end of the connecting block (5), a connecting frame (8) is rotatably connected to the inner side of the upper end of the rotating seat (7), and the top of the connecting frame (8) is connected to a fixed seat (9) connected to the top wall; The connecting frame (8) and the fixing seat (9) are detachably connected via a bolt assembly.

3. The earthquake-resistant cable tray according to claim 2, characterized in that: The upper clamping assembly comprises a connecting shaft (12) rotatably connected between the two connecting blocks (5); the outer wall of the connecting shaft (12) is fixedly connected to a rotating plate (11); a downwardly protruding extrusion plate (13) is integrally formed at the bottom of one end of the rotating plate (11); and the cross-section of the connecting shaft (12) and the extrusion plate (13) is in an "L"-shaped structure.

4. The earthquake-resistant cable tray according to claim 3, characterized in that: The limiting unit comprises a mounting plate (14) connected to the connecting block (5), the mounting plate (14) being provided with a through hole, the rotating plate (11) being provided with a No. 1 screw hole, the rotating plate (11) rotating to the lowest point drives the No. 1 screw hole to align with the through hole, and the No. 1 screw hole is threadedly connected to a limiting bolt (15).

5. The earthquake-resistant cable tray according to claim 1, characterized in that: The outer wall of the stud (1) is sleeved on the reinforcing sleeve (2), the inner wall of the reinforcing sleeve (2) is fixedly connected with a fixing block (3), a No. 2 screw hole is provided on the fixing block (3), a locking bolt (4) is connected to the inner wall of the No. 2 screw hole, and the locking bolt (4) in a tightened state abuts against the outer wall of the stud (1).

6. The earthquake-resistant cable tray according to claim 2, characterized in that: A circular hole is provided at the connection position between the connecting frame (8) and the fixing seat (9), and a fixing bolt passes through the circular hole and is connected to a nut.

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