Welding-free composite load-bearing structure and ladder-type cable bridge

Abstract

The utility model relates to ladder type bridge technology field, specifically is a kind of composite force structure and ladder type cable bridge of exempt from welding, wherein the composite force structure of exempt from welding is used to realize the detachable connection between two groups of side baffle and horizontal plate, including the alignment piece of sliding setting on horizontal plate and the locking block of setting on side baffle, locking block is equipped with the locking piece, in the process of alignment piece moving towards locking block, locking piece is matched with alignment piece, can fix alignment piece in locking block;To this end, the quick assembly of horizontal plate and side baffle is realized;Alignment piece includes the extension plate of sliding setting on horizontal plate, extension plate is symmetrically provided with two groups along the length direction of horizontal plate, embedding slot is set on each group of extension plate, embedding slot is matched with the lifting structure of setting on horizontal plate, can drive two groups of extension plate along the length direction of horizontal plate and make mutually far or close movement, to freely adjust the width of cable bridge.

Description

Technical Field

[0001] This invention relates to the field of ladder-type cable tray technology, specifically a weld-free composite load-bearing structure and a ladder-type cable tray. Background Technology

[0002] Cable trays are categorized into various structures, including trough-type cable trays, tray-type cable trays, ladder-type cable trays, and mesh-type cable trays. Among these, ladder-type cable trays are used to support and protect cables, pipes, and wires, and are widely used in construction, industry, and transportation. They can be installed independently or laid on various buildings and pipe rack supports, featuring simple structure, aesthetically pleasing appearance, flexible configuration, and convenient maintenance.

[0003] The existing cable ladder-type cable tray is mainly composed of left and right baffles, crossbars and support components. The crossbars are arranged in parallel at equal intervals between the left and right baffles and are rigidly connected to the left and right baffles by welding or plugging. The cable ladder-type cable tray made by this fixed welding method is complicated to operate and takes a long time to manufacture.

[0004] Furthermore, because the spacing between the left and right baffles is constant during use, the cable tray has certain limitations and cannot be adapted to the actual installation conditions on site. Additionally, since the entire ladder-type cable tray is a solid unit, it occupies a large space, making it inconvenient for workers to carry and transport. Summary of the Invention

[0005] The purpose of this invention is to provide a weld-free composite load-bearing structure and a ladder-type cable tray to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A ladder-type cable tray includes: two sets of side baffles and a horizontal plate, wherein a weld-free composite load-bearing structure is provided between the two sets of side baffles and the horizontal plate, and the weld-free composite load-bearing structure enables a detachable connection between the two sets of side baffles and the horizontal plate.

[0008] A weld-free composite load-bearing structure for achieving a detachable connection between two sets of side baffles and a horizontal plate includes: an alignment member slidably disposed on the horizontal plate and a locking block disposed on the side baffle. The locking block is equipped with a locking element. During the movement of the alignment member toward the locking block, the locking element cooperates with the alignment member to fix the alignment member inside the locking block.

[0009] The alignment component includes an extension plate slidably disposed on the horizontal plate. Two sets of extension plates are symmetrically arranged along the length direction of the horizontal plate. Each set of extension plates is provided with a fitting groove. The fitting groove cooperates with the lifting structure disposed on the horizontal plate, which can drive the two sets of extension plates to move away from or towards each other along the length direction of the horizontal plate.

[0010] The weld-free composite load-bearing structure described above: The lifting structure includes a threaded sleeve, which is threadedly connected to a threaded rod rotatably mounted on the extension plate, and a fixing rod is provided on the threaded sleeve. Two sets of fixing rods are equidistantly arranged along the circumference of the threaded sleeve, and each set of fixing rods is provided with a sliding rod, which is slidably disposed in the fitting groove.

[0011] The weld-free composite load-bearing structure described above: the fitting groove includes inclined grooves formed on the extension plate, and multiple sets of inclined grooves are evenly distributed, with adjacent sets of inclined grooves connected by vertical grooves.

[0012] As described above, the weld-free composite load-bearing structure has multiple sets of locking blocks arranged equidistantly along the length of the side baffle. Each set of locking blocks has an installation cavity and a sliding groove. The locking element is rotatably installed in the installation cavity. As the locking block moves closer to the extension plate, the alignment post on the extension plate can slide in the sliding groove. During the sliding of the alignment post, the locking element cooperates with the alignment post to achieve a fixed connection between the extension plate and the side baffle.

[0013] The weld-free composite load-bearing structure described above: the locking component includes a wedge block rotatably mounted in the mounting cavity, an unlocking plate is provided on the rotating shaft of the wedge block, and an insertion hole is provided on the rotating shaft of the wedge block. The insertion hole cooperates with a positioning component provided on the locking block to lock the position of the wedge block.

[0014] The weld-free composite load-bearing structure described above: the positioning component includes a positioning pin, which is slidably connected to a fixing sleeve disposed on the locking block. A spring is disposed inside the fixing sleeve, with one end of the spring abutting against the positioning pin and the other end abutting against the bottom of the fixing sleeve.

[0015] The positioning pin is also provided with a lifting rod. As the locking block moves closer to the expansion plate, the lifting rod cooperates with the lifting member provided on the expansion plate to unlock the locking state of the wedge block.

[0016] The weld-free composite load-bearing structure described above: the lifting member includes a trigger block disposed on the extension plate, the trigger block is provided with a guide surface and a horizontal surface, and the trigger block is also provided with a clearance groove adapted to the lifting rod.

[0017] Compared with the prior art, the beneficial effects of this new technology are:

[0018] By setting up a weld-free composite load-bearing structure, during the movement of the alignment member on the horizontal plate toward the locking block on the side baffle, the lifting member on the alignment member can first unlock the positioning member, allowing the wedge block elastically mounted on the locking block to deflect relative to the locking block. As the alignment member continues to move, the lifting member can briefly maintain the position of the positioning member, keeping the wedge block in the unlocked state. During this process, the alignment pin on the alignment member can engage with the sliding groove on the locking block. As the alignment member continues to move, when the alignment pin slides... When the slide reaches the end of its travel, the wedge block engages with the slide to stably lock the alignment post at the end of its travel. Simultaneously, the positioning component, with the assistance of the lifting component, returns to its initial position and locks the wedge block, thus forming a stable connection between the alignment post and the locking block. This reduces the risk of the expansion plate and locking block falling off during use. Furthermore, the coordination between multiple sets of alignment components, wedge blocks, and positioning components enhances the overall structural stability and deformation resistance of the cable tray, effectively distributing the weight of the cable and optimizing load distribution.

[0019] Compared to traditional welding techniques, the alignment components, locking blocks, and locking mechanisms enable rapid assembly and easy disassembly of the horizontal and side panels, resulting in quick and convenient operation. Furthermore, the alignment components are connected to the horizontal panel via a lifting structure, which allows the symmetrically arranged alignment components on the horizontal panel to extend and retract synchronously, adjusting the overall length of the alignment components and the horizontal panel. This allows assembly personnel to adjust the width of the ladder-type cable tray according to actual usage needs, thereby enhancing its practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a ladder-type cable tray.

[0021] Figure 2 A schematic diagram of a weld-free composite load-bearing structure.

[0022] Figure 3 A schematic diagram of the alignment component and the lifting structure in a weld-free composite load-bearing structure.

[0023] Figure 4 A schematic diagram of the lifting structure in a weld-free composite load-bearing structure.

[0024] Figure 5 A schematic diagram of the extension plate in a weld-free composite load-bearing structure.

[0025] Figure 6 A schematic diagram of the locking block on the side baffle in a weld-free composite load-bearing structure.

[0026] Figure 7 A schematic diagram of the locking mechanism in a weld-free composite load-bearing structure.

[0027] Figure 8 This is a schematic diagram of the connection between the locking element and the locking block in a weld-free composite load-bearing structure.

[0028] Figure 9 A schematic diagram of the positioning component in a weld-free composite load-bearing structure.

[0029] In the diagram: 1. Side baffle; 2. Horizontal plate; 3. Extension plate; 301. Vertical groove; 302. Inclined groove; 4. Threaded rod; 5. Threaded sleeve; 6. Locking block; 601. Slide groove; 602. Mounting cavity; 603. Positioning hole; 604. Relief surface; 7. Alignment post; 8. Trigger block; 801. Guide surface; 802. Horizontal surface; 803. Relief groove; 9. Fixing rod; 901. Slide rod; 10. Wedge block; 1001. Vertical surface; 1002. Inclined surface; 1003. Insertion hole; 11. Fixing sleeve; 1101. Through groove; 12. Unlocking plate; 13. Spring piece; 14. Positioning pin; 15. Spring; 16. Lifting rod. Detailed Implementation

[0030] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0031] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0032] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0033] Please see Figure 1-9In this novel embodiment, a ladder-type cable tray includes: two sets of side baffles 1 and a horizontal plate 2. A weld-free composite load-bearing structure is provided between the two sets of side baffles 1 and the horizontal plate 2. The weld-free composite load-bearing structure enables a detachable connection between the two sets of side baffles 1 and the horizontal plate 2.

[0034] For details, please refer to Figure 1 Multiple sets of horizontal plates 2 are equidistantly arranged between the two sets of side baffles 1. Each set of horizontal plates 2 is detachably connected to the two sets of side baffles 1 through a weld-free composite load-bearing structure. With the cooperation between the composite load-bearing structure, the side baffles 1, and the horizontal plates 2, the connection stability between the horizontal plates 2 and the side baffles 1 can be improved, thereby improving the overall rigidity. At the same time, the multiple sets of horizontal plates 2 arranged at equal intervals cooperate with each other to effectively distribute the weight of the cable, thereby optimizing the load distribution.

[0035] Please see Figures 1-9 A weld-free composite load-bearing structure for achieving a detachable connection between two sets of side baffles 1 and a horizontal plate 2, comprising: an alignment member slidably disposed on the horizontal plate 2 and a locking block 6 disposed on the side baffles 1, wherein a locking member is installed on the locking block 6, and during the process of the alignment member moving toward the locking block 6, the locking member cooperates with the alignment member to fix the alignment member inside the locking block 6;

[0036] The alignment component includes an extension plate 3 slidably disposed on the horizontal plate 2. Two sets of extension plates 3 are symmetrically disposed along the length direction of the horizontal plate 2. Each set of extension plates 3 is provided with a fitting groove. The fitting groove cooperates with the lifting structure disposed on the horizontal plate 2, which can drive the two sets of extension plates 3 to move away from or towards each other along the length direction of the horizontal plate 2.

[0037] The lifting structure includes a threaded sleeve 5, which is threadedly connected to a threaded rod 4 rotatably mounted on the expansion plate 3. A fixing rod 9 is provided on the threaded sleeve 5. Two sets of fixing rods 9 are equidistantly arranged along the circumference of the threaded sleeve 5. Each set of fixing rods 9 is provided with a sliding rod 901. The sliding rod 901 is slidably disposed in the fitting groove. Due to the cooperation between the two sets of sliding rods 901 and the two sets of fitting grooves, as well as the sliding connection between the expansion plate 3 and the cross plate 2, when the threaded rod 4 rotates, it can only drive the threaded sleeve 5 to move up and down along the axial direction of the threaded rod 4, thereby driving the two sets of expansion plates 3 to move closer or further apart.

[0038] Specifically, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5The fitting groove includes an inclined groove 302 formed on the expansion plate 3. Multiple sets of inclined grooves 302 are evenly distributed, and adjacent sets of inclined grooves 302 are connected by a vertical groove 301.

[0039] Preferably, the inclined grooves 302 are arranged in three sets at equal intervals; in the initial state, the slide bar 901 is located at the end of the stroke of the uppermost inclined groove 302. At this time, the overall length of the horizontal plate 2 and the two sets of extension plates 3 is the shortest. In the current state, the fixed connection between the horizontal plate 2 and the side baffle 1 is completed, and the assembled ladder cable tray has the shortest width.

[0040] In practice, rotating the threaded rod 4 forces the threaded sleeve 5 to descend along the axial direction of the threaded rod 4. During this process, the contact compression generated by the sliding rod 901 against the inclined groove 302 forces the two sets of expansion plates 3 to move away from each other until the sliding rod 901 engages with the vertical groove 301. At this point, the expansion plates 3 extend a certain distance outward from the horizontal plate 2. Subsequently, as the threaded sleeve 5 continues to descend, the sliding rod 901 slides within the vertical groove 301, maintaining the expansion plates 3 in their current state until the sliding rod 901 engages with the next set of inclined grooves 302, and then continues to descend. Only with the cooperation of the sliding rod 901 and the inclined groove 302 can the threaded sleeve 5 continue to drive the extension plate 3 to extend outward. The cooperation between the vertical groove 301, the inclined groove 302 and the sliding rod 901 can intermittently extend the extension plate 3 so that the side baffle 1 can maintain the same length formed by multiple sets of horizontal plates 2 and extension plates 3 during the assembly process with the horizontal plate 2. This makes it convenient for the assemblers to adjust the width of the ladder cable tray according to the actual use needs, thereby improving the practicality of the ladder cable tray.

[0041] For details, please refer to Figure 1 The locking blocks 6 are arranged in multiple sets at equal intervals along the length of the side baffle 1. Each set of locking blocks 6 has an installation cavity 602 and a sliding groove 601. The locking member is rotatably installed in the installation cavity 602. As the locking block 6 moves closer to the expansion plate 3, the alignment post 7 on the expansion plate 3 can slide in the sliding groove 601. During the sliding of the alignment post 7, the locking member cooperates with the alignment post 7 to achieve a fixed connection between the expansion plate 3 and the side baffle 1.

[0042] The locking component includes a wedge block 10 rotatably mounted in the mounting cavity 602. An unlocking plate 12 is provided on the rotating shaft of the wedge block 10, and an insertion hole 1003 is provided on the rotating shaft of the wedge block 10. The insertion hole 1003 cooperates with a positioning component provided on the locking block 6 to lock the position of the wedge block 10.

[0043] Specifically, please refer to Figure 7 , Figure 8 , Figure 9 The aforementioned wedge block 10 is configured as a "right trapezoid" structure, including a vertical surface 1001 and an inclined surface 1002. The wedge block 10 and the locking block 6 are connected by a spring piece 13. In the initial state, under the drive of the spring piece 13, the wedge block 10 and the unlocking plate 12 remain parallel to the horizontal ground, and at this time the axis of the socket 1003 remains perpendicular to the horizontal ground.

[0044] The positioning component includes a positioning pin 14, which is slidably connected to a fixing sleeve 11 disposed on the locking block 6. A spring 15 is disposed inside the fixing sleeve 11, one end of which abuts against the positioning pin 14 and the other end of which abuts against the bottom of the fixing sleeve 11.

[0045] Specifically, the spring 15 is always in a compressed state, which pushes the positioning pin 14 to move toward the locking block 6, so that in the initial state, the positioning pin 14 can be inserted into the positioning hole 603 and the insertion hole 1003 opened on the locking block 6, thereby locking the position of the wedge block 10.

[0046] The positioning pin 14 is also equipped with a lifting rod 16. For details, please refer to [link / reference needed]. Figure 9 The lifting rod 16 is slidably disposed in the through groove 1101 opened on the fixed sleeve 11. With the cooperation of the through groove 1101 and the lifting rod 16, the positioning pin 14 can only slide along the axial direction of the fixed sleeve 11. As the locking block 6 moves toward the extension plate 3, the lifting rod 16 cooperates with the lifting member disposed on the extension plate 3 to unlock the locking state of the wedge block 10.

[0047] In particular, please see Figure 3 , Figure 5 The lifting component includes a trigger block 8 disposed on the extension plate 3. The trigger block 8 is configured as a "right-angled trapezoidal structure" and has a guide surface 801 and a horizontal surface 802. The trigger block 8 is also provided with a clearance groove 803 adapted to the lifting rod 16.

[0048] Please refer to [link / reference needed] for further information. Figure 8 The locking block 6 is provided with a clearance surface 604, which engages with the clearance surface 604 of the expansion plate 3 and the locking block 6 during the assembly process. This ensures that the locking block 6 remains in contact with the expansion plate 3 throughout the subsequent assembly process.

[0049] As the extension plate 3 continues to move closer to the locking block 6, the guide surface 801 of the trigger block 8 engages with the lifting rod 16 first. Subsequently, under the push of the guide surface 801, the lifting rod 16 drives the positioning pin 14 to rise until the guide surface 801 separates from the lifting rod 16, at which point the positioning pin 14 separates from the insertion hole 1003. At this time, the wedge block 10 can rotate.

[0050] As the extension plate 3 continues to move, the lifting rod 16 slides along the horizontal plane 802. Simultaneously, the alignment post 7 engages with the slide groove 601 and slides within it. During this process, the alignment post 7 first engages with the inclined surface 1002. The subsequent compression of the inclined surface 1002 by the alignment post 7 forces the wedge block 10 to deflect clockwise away from the slide groove 601 (see reference). Figure 7 (Description), and further compress the shrapnel 13;

[0051] When the alignment pin 7 moves to the end of the travel of the slide groove 601, the wedge block 10 returns to its initial state under the drive of the spring piece 13. At this time, the vertical surface 1001 of the wedge block 10 cooperates with the slide groove 601 to lock the alignment pin 7 at the end of the travel of the slide groove 601. When the alignment pin 7 moves to the end of the travel of the slide groove 601, the lifting rod 16 engages with the relief groove 803. At this time, the spring 15 releases its elastic potential energy and pushes the lifting rod 16 to slide along the relief groove 803, thereby causing the positioning pin 14 to quickly descend and return to its initial position, thus continuing to lock the wedge block 10, thereby improving the locking stability of the wedge block 10 on the alignment pin 7.

[0052] When it is necessary to disassemble the side baffle 1, first pull the lifting rod 16 to rise until the lifting rod 16 rises to the highest position, then rotate the unlocking plate 12 clockwise to drive the wedge block 10 to deflect and open the slide 601. Then, pull the extension plate 3 outward to achieve quick disassembly of the horizontal plate 2 and the side baffle 1.

[0053] The assembly method for a ladder-type cable tray with the weld-free composite load-bearing structure described above includes the following steps:

[0054] Step 1: In the initial state, the positioning pin 14 engages with the insertion hole 1003 to lock the wedge block 10;

[0055] When the side baffle 1 and the extension plate 3 are docked, the trigger block 8 first cooperates with the lifting rod 16 to push the positioning pin 14 to separate from the wedge block 10, thereby releasing the locking state of the wedge block 10.

[0056] Step 2: As the extension plate 3 continues to approach, the lifting rod 16 slides along the horizontal surface 802 of the trigger block 8. During the sliding process, the alignment post 7 contacts the slide groove 601 and slides within the slide groove 601. Subsequently, the alignment post 7 can push the wedge block 10 to deflect and reposition until the alignment post 7 moves to the end of the stroke of the slide groove 601. Then, the wedge block 10 automatically resets with the cooperation of the spring piece 13, thereby locking the alignment post 7. At the same time, the lifting rod 16 engages with the relief groove 803, and the positioning pin 14 returns to the initial position to position the wedge block 10, so that a stable connection is formed between the extension plate 3 and the side baffle 1.

[0057] Step 3: When disassembling, first pull the lifting rod 16 upward to the end of its stroke, then rotate the unlocking plate 12 to drive the wedge block 10 to deflect, and then pull the extension plate 3 outward to achieve the disassembly between the extension plate 3 and the side baffle 1.

[0058] 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.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ladder-type cable tray, characterized in that, include: Two sets of side baffles (1) and a horizontal plate (2) are provided. A non-welding composite load-bearing structure is provided between the two sets of side baffles (1) and the horizontal plate (2). The non-welding composite load-bearing structure can realize the detachable connection between the two sets of side baffles (1) and the horizontal plate (2).

2. A weld-free composite load-bearing structure for achieving a detachable connection between two sets of side baffles (1) and a cross plate (2), characterized in that, It includes an alignment member that is slidably disposed on the horizontal plate (2) and a locking block (6) disposed on the side baffle (1). A locking member is installed on the locking block (6). During the process of the alignment member moving toward the locking block (6), the locking member cooperates with the alignment member to fix the alignment member inside the locking block (6). The alignment component includes an extension plate (3) that is slidably disposed on the horizontal plate (2). Two sets of extension plates (3) are symmetrically disposed along the length direction of the horizontal plate (2). Each set of extension plates (3) is provided with a fitting groove. The fitting groove cooperates with the lifting structure disposed on the horizontal plate (2) to drive the two sets of extension plates (3) to move away from or closer to each other along the length direction of the horizontal plate (2).

3. A weldless composite load bearing structure according to claim 2, wherein, The lifting structure includes a threaded sleeve (5), which is threadedly connected to a threaded rod (4) rotatably mounted on the extension plate (3). A fixing rod (9) is provided on the threaded sleeve (5). Two sets of fixing rods (9) are equidistantly arranged along the circumference of the threaded sleeve (5). Each set of fixing rods (9) is provided with a sliding rod (901), which is slidably disposed in the fitting groove.

4. A weldless composite load bearing structure according to claim 2, wherein, The fitting groove includes inclined grooves (302) formed on the expansion plate (3). Multiple sets of inclined grooves (302) are equidistantly distributed, and adjacent sets of inclined grooves (302) are connected by vertical grooves (301).

5. The weld-free composite load-bearing structure according to claim 2, characterized in that, Multiple sets of locking blocks (6) are equidistantly arranged along the length direction of the side baffle (1). Each set of locking blocks (6) has an installation cavity (602) and a sliding groove (601). The locking member is rotatably installed in the installation cavity (602). As the locking block (6) moves toward the expansion plate (3), the alignment post (7) set on the expansion plate (3) can slide in the sliding groove (601). During the sliding of the alignment post (7), the locking member cooperates with the alignment post (7) to achieve a fixed connection between the expansion plate (3) and the side baffle (1).

6. A weldless composite load bearing structure according to claim 5, wherein, The locking component includes a wedge block (10) rotatably installed in the mounting cavity (602). An unlocking plate (12) is provided on the rotating shaft of the wedge block (10), and an insertion hole (1003) is provided on the rotating shaft of the wedge block (10). The insertion hole (1003) cooperates with the positioning component provided on the locking block (6) to lock the position of the wedge block (10).

7. The weld-free composite load-bearing structure according to claim 6, characterized in that, The positioning component includes a positioning pin (14), which is slidably connected to a fixing sleeve (11) provided on the locking block (6). A spring (15) is provided inside the fixing sleeve (11), one end of which abuts against the positioning pin (14) and the other end abuts against the bottom of the fixing sleeve (11). The positioning pin (14) is also provided with a lifting rod (16). As the locking block (6) moves toward the extension plate (3), the lifting rod (16) cooperates with the lifting member provided on the extension plate (3) to unlock the locking state of the wedge block (10).

8. The weld-free composite load-bearing structure according to claim 7, characterized in that, The lifting component includes a trigger block (8) disposed on the extension plate (3). The trigger block (8) is provided with a guide surface (801) and a horizontal surface (802), and the trigger block (8) is also provided with a relief groove (803) adapted to the lifting rod (16).

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