Aluminum alloy trough type bridge with self-locking structure

Abstract

The utility model relates to the field of slot type bridge and discloses an aluminum alloy slot type bridge with self-locking structure, which comprises an upper bridge and a lower bridge, the upper bridge and the lower bridge are combined to form a bridge whole, straight sections are formed at both ends of the outer wall of the upper bridge, sliding blocks are welded at both ends of the outer wall of the lower bridge, the sliding blocks are embedded outside the straight sections and connected with the straight sections through sliding. The aluminum alloy slot type bridge with self-locking structure is provided with sliding blocks, straight sections are arranged at both ends of the upper bridge, when the sliding blocks slide to the slope sections and continue to move forward, the slope resistance will be gradually overcome and the sliding blocks will be clamped into the lock hole sections to form a stable locking structure, when external force pulls the lower bridge in the opposite direction, the structure of the anti-lock section and the lock hole section can effectively prevent the bridge assembly from loosening, so that self-locking assembly without additional connecting members such as bolts is realized, and the problem that the embedded bridge cannot be stably locked is solved.

Description

Technical Field

[0001] This utility model relates to the field of trough-type cable tray technology, specifically to an aluminum alloy trough-type cable tray with a self-locking structure. Background Technology

[0002] Cable trays are wiring support devices used for the centralized laying of power cables, control cables, signal cables, and other lines. They enable centralized management of cable wiring and provide mechanical protection and electromagnetic interference shielding for the cables.

[0003] Common cable tray types include ladder-type cable trays, tray-type cable trays, and trough-type cable trays. Among them, trough-type cable trays are suitable for automated control systems or computer network systems with high requirements for electrical environment. In the structure of trough-type cable trays, the overall closed installation is usually achieved by the interlocking of the upper and lower cable trays. That is, the upper cable tray is connected and interlocked with the slider or flange of the lower cable tray through the sliding grooves on both sides to form a continuous and sealed channel.

[0004] Existing trough-type cable trays generally have the following technical defects: Although the upper and lower cable trays form a closed structure by fitting together through grooves and sliders, they cannot be stably locked after fitting together. Screws, clips and other auxiliary fasteners are still required to fix them at the connection points. This not only increases the amount of manual operation and time cost in the installation process, but also makes the cable tray structure prone to loosening or disassembly due to loose screws, omissions or corrosion.

[0005] Therefore, there is an urgent need for an aluminum alloy trough-type cable tray with a self-locking structure to solve the above-mentioned technical defects. Utility Model Content

[0006] The purpose of this utility model is to provide an aluminum alloy channel cable tray with a self-locking structure to solve the problem mentioned in the background art that the cable tray cannot be stably locked after fitting, and still needs to be fixed with auxiliary fasteners such as screws and clips at the connection parts.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an aluminum alloy trough-type cable tray with a self-locking structure, comprising an upper cable tray and a lower cable tray, wherein the upper cable tray and the lower cable tray are combined to form an integral cable tray, both ends of the outer wall of the upper cable tray are machined with straight sections, and both ends of the outer wall of the lower cable tray are welded with sliders, the sliders being embedded in the outside of the straight sections and forming a sliding connection with the straight sections, and the end of the straight sections being machined with a self-locking structure; the self-locking structure includes a slope section communicating with the straight sections, the bottom of the slope section being machined with an anti-locking section, the end of the anti-locking section being machined with a locking hole section, and the end of the locking hole section being machined with a narrow section.

[0008] As a further technical solution of this utility model, the straight section and the anti-locking section have the same width, and the narrow section has a width smaller than the straight section and the anti-locking section.

[0009] As a further technical solution of this utility model, the lock hole section is semi-circular, and the lock hole section matches the size of the slider.

[0010] As a further technical solution of this utility model, the bottom of the lower cable tray is provided with three sets of equally spaced wire holes, and the wire holes are fitted with hole covers. The hole covers are fixedly connected to the lower cable tray by pins.

[0011] As a further technical solution of this utility model, the upper bridge frame is machined with a concave cavity, and the cavity is provided with two sets of wall grooves parallel to the length of the upper bridge frame. Multiple sets of movable blocks are embedded in the wall grooves, and the bottom end of the movable blocks is provided with a sliding groove, and two sets of coil bundles are embedded in the sliding groove.

[0012] As a further technical solution of this utility model, a wire loop is rotatably connected to the inner side of the wire loop, and a rotating groove is processed on the outer wall of the wire loop. The wire loop is rotatably connected to the wire loop through the rotating groove. A ring notch is opened at the rotating groove, and a loop notch is opened at the wire loop. The opening of the loop notch is larger than the ring notch.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the aluminum alloy trough-type cable tray with self-locking structure not only realizes self-locking assembly without the need for additional connecting parts such as bolts, and realizes quick inspection and partial maintenance of the internal wiring of the cable tray, but also realizes the firm clamping of the wire harness without the use of screws.

[0014] (1) By setting up sliders, straight sections, slope sections, anti-lock sections, lock hole sections and narrow sections, the straight sections set at both ends of the upper bridge frame and the sliders welded at both ends of the lower bridge frame form a sliding fit structure, so that the lower bridge frame can be smoothly advanced along the straight section. When the slider slides to the slope section and continues to advance, it will gradually overcome the slope resistance and be locked into the lock hole section to form a stable locking structure. When the external force pulls the lower bridge frame in the opposite direction, due to the structural anti-lock relationship between the anti-lock section and the lock hole section, it can effectively prevent the bridge frame components from loosening, thereby realizing self-locking assembly without bolts or other additional connecting parts;

[0015] (2) By setting up hole covers and wire holes, wire holes are set at equal intervals at the bottom of the lower cable tray, and hole covers are added to the outside of each group of wire holes. After the upper cable tray is fixedly installed, maintenance personnel can quickly view and perform local maintenance on the internal wiring of the cable tray by opening the hole covers in some parts without disassembling the entire lower cable tray, thus improving the operation and maintenance efficiency.

[0016] (3) By setting wall grooves, movable blocks, sliding grooves, wire harness coils, wire harness rings, rotating grooves, ring notches, and ring notches, a cavity is machined inside the upper bridge frame, and two sets of wall grooves are arranged along the length direction. Multiple sets of movable blocks are slidably installed in the wall grooves. Each set of movable blocks has a sliding groove at the bottom and an adjustable wire harness coil is embedded. By adjusting the position of the wire harness coil through the sliding groove, the front and rear direction of the wire harness can be finely adjusted. The wire harness ring is installed inside the wire harness coil. The wire harness can be inserted from the ring notch on the wire harness ring. Then, the wire harness ring is rotated until the ring notch is misaligned with it, so that the ring notch closes towards the sliding groove side. The wire harness can be firmly clamped without the use of screws. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation method of this utility model;

[0018] Figure 2 This is a bottom view schematic diagram of the lower cable tray structure of this utility model;

[0019] Figure 3 This is a top view cross-sectional structural diagram of the cavity of this utility model;

[0020] Figure 4 This is a side view of the coil structure of this utility model.

[0021] In the diagram: 1. Upper cable tray; 2. Lower cable tray; 3. Hole cover; 4. Slider; 5. Cavity; 6. Straight section; 7. Sloping section; 8. Anti-locking section; 9. Locking hole section; 10. Narrow section; 11. Wire hole; 12. Wall groove; 13. Movable block; 14. Slide groove; 15. Bundle coil; 16. Bundle ring; 17. Rotating groove; 18. Ring notch; 19. Ring notch. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4This utility model provides an embodiment of an aluminum alloy channel cable tray with a self-locking structure, comprising an upper cable tray 1 and a lower cable tray 2, which are combined to form an integral cable tray. The upper cable tray 1 has straight sections 6 machined at both ends of its outer wall, and the lower cable tray 2 has sliders 4 welded to both ends of its outer wall. The sliders 4 are embedded in the outside of the straight sections 6 and form a sliding connection with the straight sections 6. The straight sections 6 have a self-locking structure at their ends. The self-locking structure includes a slope section 7 communicating with the straight sections 6. An anti-locking section 8 is machined at the bottom of the slope section 7. A locking hole section 9 is machined at the end of the anti-locking section 8. A narrow section 10 is machined at the end of the locking hole section 9. The straight sections 6 and anti-locking section 8 have the same width, while the narrow section 10 has a width smaller than both the straight sections 6 and anti-locking section 8. The locking hole section 9 is semi-circular and its dimensions match those of the sliders 4.

[0024] Specifically, such as Figure 1 and Figure 2 As shown, the cable tray is composed of an upper cable tray 1 and a lower cable tray 2. When installing the lower cable tray 2, the operator slides the sliders 4 at both ends of the lower cable tray 1 into the straight sections 6 machined at both ends of the upper cable tray 1, so that the lower cable tray 2 can be pushed along the straight section 6 and the assembly can be completed. When the slider 4 moves to the slope section 7, a little external force is needed to overcome the frictional resistance brought by the slope, and continue to push it into the anti-lock section 8 and finally into the locking hole section 9. At this time, the slider 4 will be firmly locked in the locking hole section 9 due to the structural limit and size matching. If the lower cable tray 2 is pulled out in the opposite direction, the slider 4 will not be able to disengage due to the structural obstruction of the anti-lock section 8, thus achieving quick installation and stable self-locking.

[0025] The bottom of the lower cable tray 2 has three sets of equally spaced wire holes 11. The wire holes 11 are fitted with hole covers 3, and the hole covers 3 are fixedly connected to the lower cable tray 2 by pins.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, there are equally spaced wire holes 11 at the bottom of the lower cable tray 2, and a hole cover 3 is installed on the outside of each group of wire holes 11. After the upper cable tray 1 is fixedly installed, maintenance personnel can open the hole cover 3 locally without disassembling the entire lower cable tray 2.

[0027] The upper cable tray 1 has a concave cavity 5. The cavity 5 has two sets of wall grooves 12 parallel to the length of the upper cable tray 1. Multiple sets of movable blocks 13 are embedded in the wall grooves 12. The bottom of the movable blocks 13 has a sliding groove 14. Two sets of bundle coils 15 are embedded in the sliding groove 14. A bundle ring 16 is rotatably connected to the inner side of the bundle coil 15. The outer wall of the bundle ring 16 has a rotating groove 17. The bundle coil 15 is rotatably connected to the bundle ring 16 through the rotating groove 17. A ring notch 19 is opened at the rotating groove 17. A coil notch 18 is opened at the bundle coil 15. The opening of the coil notch 18 is larger than that of the ring notch 19.

[0028] Specifically, such as Figure 3 and Figure 4 As shown, a cavity 5 is machined inside the upper bridge 1, and two sets of wall grooves 12 are arranged along the length direction. Multiple sets of movable blocks 13 are slidably installed in the wall grooves 12. Each set of movable blocks 13 has a sliding groove 14 at the bottom and an adjustable wire harness coil 15 is embedded therein. By adjusting the position of the wire harness coil 15 through the sliding groove 14, the front and rear directions of the wire harness can be finely adjusted. A wire harness ring 16 is installed inside the wire harness coil 15. The wire harness can be inserted from the ring notch 19 opened on the wire harness ring 16. Then, the wire harness ring 16 is rotated until the ring notch 18 is misaligned with it, so that the ring notch 19 closes towards the sliding groove 14. The wire harness can be firmly clamped without the use of screws.

[0029] Working Principle: The cable tray consists of an upper cable tray 1 and a lower cable tray 2. When installing the lower cable tray 2, the operator aligns the sliders 4 at both ends with the straight sections 6 machined at both ends of the upper cable tray 1 and slides them in, allowing the lower cable tray 2 to advance along the straight sections 6 and complete the assembly. When the sliders 4 move to the slope section 7, a slight external force is applied to overcome the frictional resistance from the slope, continuing to push them into the anti-lock section 8 and finally locking them into the locking hole section 9. At this point, due to structural limitations and dimensional fit, the sliders 4 are firmly locked within the locking hole section 9. If the lower cable tray 2 is pulled out in the opposite direction, the sliders 4 will be unable to disengage due to the structural obstruction of the anti-lock section 8, thus achieving quick installation and stable self-locking, preventing the cable tray from loosening. During normal use, cables pass through the wire hole 11 at the bottom of the lower cable tray 2, and a hole cover 3 is installed to seal the hole. The hole cover 3 is fixedly connected to the cable tray by a pin. When it is necessary to inspect a section of cable, only... Observation and maintenance can be completed by opening the corresponding hole cover 3 without removing the entire cable tray. To achieve orderly arrangement of the wire harness inside the cable tray, the upper cable tray 1 has a concave cavity 5. Two sets of wall grooves 12 are set along the length of the cavity 5. Multiple sets of movable blocks 13 are embedded in the wall grooves 12. The horizontal displacement of the cable clamping unit can be achieved by sliding the movable blocks 13 in the wall grooves 12. Each set of movable blocks 13 has a sliding groove 14 at the bottom. The sliding groove 14 is embedded with a cable coil 15. The cable coil 15 can be adjusted back and forth to adapt to different cable wiring structures. After the cable is placed, the operator can insert the cable into the ring notch 19 opened on the outer wall of the cable ring 16, and then rotate the cable ring 16 so that the ring notch 19 rotates to the inside of the ring notch 18 set in the cable coil 15. Since the opening size of the ring notch 18 is larger than that of the ring notch 19, it forms a closed state after rotation, which can firmly limit the cable and prevent it from falling off.

[0030] In summary, during actual use, this cable tray, through the sliding locking structure of the upper and lower cable trays, the inspection hole cover design of the bottom cable hole, and the coordinated operation of the internal wiring limiting components, can achieve rapid installation, reliable locking, convenient maintenance, and efficient wiring of the cable tray. It is suitable for the needs of efficient, safe, and standardized management of cable systems in large-scale engineering wiring scenarios.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An aluminum alloy trough-type cable tray with a self-locking structure, comprising an upper cable tray (1) and a lower cable tray (2), characterized in that: The upper cable tray (1) and the lower cable tray (2) are combined to form a cable tray as a whole. The upper cable tray (1) has straight sections (6) processed at both ends of its outer wall. The lower cable tray (2) has sliders (4) welded at both ends of its outer wall. The sliders (4) are embedded in the outside of the straight sections (6) and form a sliding connection with the straight sections (6). The straight sections (6) have a self-locking structure processed at their ends. The self-locking structure includes a slope section (7) that communicates with the straight sections (6). The bottom of the slope section (7) has an anti-locking section (8). The end of the anti-locking section (8) has a lock hole section (9). The end of the lock hole section (9) has a narrow section (10).

2. The aluminum alloy trough-type cable tray with a self-locking structure according to claim 1, characterized in that: The straight section (6) and the anti-locking section (8) have the same width, and the narrow section (10) has a width smaller than the straight section (6) and the anti-locking section (8).

3. The aluminum alloy trough-type cable tray with a self-locking structure according to claim 1, characterized in that: The keyhole section (9) is semi-circular, and the size of the keyhole section (9) matches that of the slider (4).

4. The aluminum alloy trough-type cable tray with a self-locking structure according to claim 1, characterized in that: The bottom of the lower cable tray (2) has three sets of equally spaced wire holes (11), and the wire holes (11) are fitted with hole covers (3). The hole covers (3) are fixedly connected to the lower cable tray (2) by pins.

5. An aluminum alloy trough-type cable tray with a self-locking structure according to claim 1, characterized in that: The upper bridge frame (1) has a concave cavity (5) inside. The cavity (5) has two sets of wall grooves (12) parallel to the length of the upper bridge frame (1). The wall grooves (12) are embedded with multiple sets of movable blocks (13). The bottom end of the movable block (13) is provided with a sliding groove (14). The sliding groove (14) is embedded with two sets of coil bundles (15).

6. An aluminum alloy trough-type cable tray with a self-locking structure according to claim 5, characterized in that: The inner side of the coil (15) is rotatably connected to the wire loop (16). The outer wall of the wire loop (16) is machined with a rotating groove (17). The coil (15) is rotatably connected to the wire loop (16) through the rotating groove (17). A ring notch (19) is opened at the rotating groove (17). A coil notch (18) is opened at the coil (15). The opening of the coil notch (18) is larger than that of the ring notch (19).

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