High-strength adjustable bridge seismic support device

Abstract

The utility model relates to the technical field of bridge support, specifically relates to a kind of high-strength adjustable bridge anti-seismic support device, including bridge board, recess is set in the both sides of bridge board, the inner wall of two recesses is slidably connected with adjusting plate, the end of two adjusting plates is fixedly connected with clamping plate, the side of two clamping plates is fixedly connected with bridge pole, the top of bridge pole is fixed in wall top by bolt, placing box that can accommodate cable is placed between the top of bridge board and adjusting plate, adjusting mechanism for adjusting the spacing between two adjusting plates is arranged between the bottom of bridge board and two adjusting plates.Compared with prior art, the present application solves the problem that the overall width of the conventional bridge support structure cannot be adjusted after welding or bolt fixation, effectively improves the adaptability of the bridge structure in complex wiring environment, and enhances the flexibility and versatility of construction.

Description

Technical Field

[0001] This utility model relates to the field of cable tray support technology, and in particular to a high-strength adjustable cable tray seismic support device. Background Technology

[0002] Cable trays, as an important component of cable laying projects, are widely used in the centralized laying of power, telecommunications, and automation control lines in industrial and civil buildings. Their main functions are to support, protect, and guide cable lines, offering advantages such as simple structure, neat wiring, and convenient maintenance. Existing cable trays generally include basic components such as tray panels, side panels, and support rods, with common forms including ladder type, trough type, and tray type, to meet the installation requirements of different application scenarios.

[0003] Existing cable tray seismic support structures are fixed, and the cable tray plates are usually connected and fixed to the supports by welding or bolting. After this, the width between the cable trays cannot be adjusted according to actual needs. As a result, it is not possible to adapt to different sizes of cable trays or multiple sets of cable trays during installation. This limits the adaptability of the cable tray structure in various wiring environments. Moreover, when multiple cable trays need to be laid at the same time, the entire support structure often needs to be replaced, which makes construction complicated, wiring inflexible, and reduces construction efficiency and the versatility of the cable tray. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a high-strength adjustable cable tray seismic support device to solve the problem that the existing cable tray seismic support structure is fixed and cannot adjust the width between cable trays according to actual needs, resulting in the inability to adapt to different sizes of cable trays or multiple sets of cable trays during installation.

[0005] To achieve the above objectives, this utility model provides a high-strength adjustable cable tray seismic support device, comprising a cable tray plate, with grooves on both sides of the cable tray plate, and adjusting plates slidably connected to the inner walls of the two grooves. Clamping plates are fixedly connected to the opposite ends of the two adjusting plates, and cable tray rods are fixedly connected to the opposite sides of the two clamping plates. The top of the cable tray rods is bolted to the top of a wall. A cable storage box is placed between the top of the cable tray plate and the adjusting plates, and an adjusting mechanism for adjusting the distance between the two adjusting plates is provided between the bottom of the cable tray plate and the two adjusting plates.

[0006] Preferably, the adjustment mechanism includes a winding roller rotatably connected to the bottom of the cable tray plate. Fixing blocks are fixedly connected to the bottom sides of the cable tray plate and the bottom sides of the two adjustment plates near the cable tray plate. A first spring is fixedly connected between the fixing blocks at the bottom of the cable tray plate and the fixing blocks at the bottom of the adjustment plates. Two pull ropes are fixedly connected to the outer wall of the winding roller. The two pull ropes pass through the fixing blocks at the bottom sides of the cable tray plate and are fixedly connected to the fixing blocks at the bottom of the adjustment plates.

[0007] Preferably, a limiting ring is fixedly connected to the bottom of the cable tray plate, and the inner wall of the limiting ring is provided with a plurality of equally spaced limiting grooves. The winding roller is located inside the limiting ring, and a movable plate is slidably connected inside the winding roller. Two top posts are fixedly connected to the top of the movable plate, and two inclined plates are slidably connected to the top of the inner wall of the winding roller. The inclined plates are arranged opposite to each other, and a limiting post is fixedly connected to the side wall of each of the two inclined plates. One end of the limiting post penetrates through the outer wall of the winding roller, and a second spring is fixedly connected to the opposite side of the two inclined plates. A rotating handle for rotating the winding roller is fixedly connected to the bottom of the movable plate.

[0008] Preferably, a support plate is fixedly connected to the top of each of the two clamping plates. The support plate is in the shape of an inverted L. A movable column is inserted through the top of the support plate. A lower pressure plate is fixedly connected to the bottom of the movable column. The lower pressure plate is slidably connected to the inner wall of the support plate. A third spring is sleeved on the outer wall of the movable column. The third spring is fixedly connected between the inner wall of the support plate and the top of the lower pressure plate.

[0009] Preferably, the top ends of the two top columns are arc-shaped. When the two top columns move upward, they will squeeze the side walls of the two ramps respectively. The two ramps will move closer to each other due to the squeezing of the top columns, and drive the limiting column to retract back into the winding roller.

[0010] Preferably, the two clamping plates are L-shaped. When the winding roller rotates, it pulls the pull ropes at both ends to wind around the outer wall of the winding roller. The pull ropes pull the adjusting plate to adjust the width between the bridge plate and the adjusting plate. When the adjusting plate moves, it will drive the two clamping plates to move closer to each other and clamp them on the outer wall of the placement box.

[0011] Preferably, the end of the lower pressure plate near the placement box is arc-shaped. When the two clamping plates approach each other near the placement box, they will simultaneously drive the two support plates to move. When the two support plates move, they will drive the lower pressure plate on the inner wall to contact the side wall of the placement box. When the arc-shaped end of the lower pressure plate contacts the side wall of the placement box, it will squeeze the lower pressure plate to move upward and move to the top of the placement box. When the lower pressure plate moves upward, it will compress the third spring.

[0012] Preferably, three sides of the outer wall of the two cable tray rods are fixedly connected with anti-seismic plates, and the top of the anti-seismic plates is fixedly connected to the top of the wall by bolts.

[0013] The beneficial effects of this utility model are:

[0014] 1. This high-strength adjustable cable tray seismic support device, through the cooperation of structures such as winding rollers, pull ropes, adjusting plates, fixing blocks, rotating handles, limiting rings, and limiting grooves, realizes the flexible adjustment function of the width between the cable tray plate and the adjusting plate. The operator drives the winding rollers to rotate by rotating the handle, and pulls the pull rope fixed on the adjusting plate, so that the two adjusting plates slide towards the cable tray plate at the same time and gradually move closer. It can flexibly adjust the width of the cable tray according to different specifications or multiple sets of cable trays, which solves the drawback of the traditional cable tray support structure that requires welding or bolting to fix the overall width and cannot be adjusted. It effectively improves the adaptability of the cable tray structure in complex wiring environments and enhances the construction flexibility and versatility.

[0015] 2. This high-strength adjustable cable tray seismic support device, through the inward movement of the adjusting plate, forms a multi-directional clamping and limiting structure for the placement box together with the clamping plate, support plate, moving column, lower pressure plate, and third spring. The clamping plate drives the inverted L-shaped support plate to move, thereby causing the arc-shaped lower pressure plate to apply a continuous downward pressing force to the top of the placement box under the action of the spring. Combined with the lateral clamping effect of the two clamping plates on both sides of the placement box, it ensures that the placement box is stably fixed above the cable tray plate, avoiding displacement or falling off under vibration conditions. It also works in conjunction with three seismic plates triangularly distributed on the outside of the cable tray rod to improve the overall seismic performance and enhance the safety and reliability of the cable tray installation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the groove and adjusting plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall front view of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the fixing block and the first spring of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the top column and slope plate of this utility model;

[0022] Figure 6 This utility model Figure 3 A schematic diagram of the three-dimensional structure at point A in the middle.

[0023] The diagram is marked as follows:

[0024] 1. Cable tray plate; 2. Groove; 3. Adjusting plate; 4. Clamping plate; 5. Cable tray rod; 6. Placement box; 7. Winding roller; 8. Fixing block; 9. First spring; 10. Pull rope; 11. Limiting ring; 12. Limiting groove; 13. Moving plate; 14. Top column; 15. Inclined plate; 16. Limiting column; 17. Second spring; 18. Rotating handle; 19. Support plate; 20. Moving column; 21. Lower pressure plate; 22. Third spring; 23. Anti-vibration plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figures 1 to 6As shown, a high-strength adjustable cable tray seismic support device includes a cable tray plate 1. Grooves 2 are provided on both sides of the cable tray plate 1. Adjustment plates 3 are slidably connected to the inner walls of both grooves 2. Clamping plates 4 are fixedly connected to opposite ends of the two adjustment plates 3. The clamping plates 4 are L-shaped. When the winding roller 7 rotates, it pulls the pull ropes 10 at both ends to wind around the outer wall of the winding roller 7. The pull ropes 10 pull the adjustment plates 3 to adjust the width between the cable tray plate 1 and the adjustment plates 3. When the adjustment plates 3 move, they cause the two clamping plates 4 to move closer to each other and clamp onto the outer wall of the placement box 6. Cable tray rods 5 are fixedly connected to opposite ends of the two clamping plates 4. The top of the cable tray rods 5 is fixed to the top of the wall by bolts. A placement box 6 for accommodating cables is placed between the tops of the cable tray plate 1 and the adjustment plates 3. An adjustment mechanism for adjusting the distance between the two adjustment plates 3 is provided between the bottoms of the cable tray plate 1 and the two adjustment plates 3.

[0028] Further, see attached document. Figures 1 to 6 As shown, the adjustment mechanism includes a winding roller 7 rotatably connected to the bottom of the cable tray plate 1. Fixing blocks 8 are fixedly connected to the bottom sides of the cable tray plate 1 and the bottom sides of the two adjusting plates 3 near the cable tray plate 1. A first spring 9 is fixedly connected between the fixing blocks 8 at the bottom of the cable tray plate 1 and the fixing blocks 8 at the bottom of the adjusting plates 3. Two pull ropes 10 are fixedly connected to the outer wall of the winding roller 7. The two pull ropes 10 pass through the fixing blocks 8 on both sides of the bottom of the cable tray plate 1 and are fixedly connected to the fixing blocks 8 at the bottom of the adjusting plates 3. A limiting ring 11 is fixedly connected to the bottom of the cable tray plate 1. Multiple evenly distributed limiting grooves 12 are formed on the inner wall of the limiting ring 11. The winding roller 7 is located inside the limiting ring 11. A moving plate 13 is slidably connected inside the winding roller 7. Two top posts 14 are fixedly connected to the top of the moving plate 13. Two inclined plates 15 are slidably connected to the top of the inner wall of the winding roller 7. The inclined plates 15 are arranged opposite to each other. Limiting posts 16 are fixedly connected to the side walls of the two inclined plates 15. One end of the limiting post 16 penetrates the outer wall of the winding roller 7. A second spring 17 is fixedly connected to the opposite side of the two inclined plates 15. A rotating handle 18 for rotating the winding roller 7 is fixedly connected to the bottom of the moving plate 13. A support plate 19 is fixedly connected to the top of the two clamping plates 4. The support plate 19 is in the shape of an inverted L. A moving post 20 is passed through the top of the support plate 19. A lower pressure plate 21 is fixedly connected to the bottom end of the moving post 20. The lower pressure plate 21 is slidably connected to the inner wall of the support plate 19. A third spring 22 is sleeved on the outer wall of the moving post 20. The third spring 22 is fixedly connected between the inner wall of the support plate 19 and the top of the lower pressure plate 21.

[0029] When the adjustment mechanism is in use, the operator first holds the rotating handle 18 and then applies an upward force to the rotating handle 18. At this time, the rotating handle 18 drives the internally fixedly connected movable plate 13 to move upward in the winding roller 7. The top of the movable plate 13 is fixedly connected to two top columns 14. The top columns 14 have an arc-shaped structure. During the upward movement, they respectively press the side wall of the inclined plate 15 that is slidably set on the top of the inner wall of the winding roller 7. Since the two inclined plates 15 are arranged opposite each other and connected in the middle by the second spring 17, the inclined plates 15 will move towards the middle synchronously under the inward pressing force of the top columns 14. This causes the limiting column 16 fixed on its side wall to retract back into the interior of the winding roller 7 and exit from the limiting groove 12 on the inner wall of the limiting ring 11, releasing the limiting state of the winding roller 7 and allowing it to rotate freely.

[0030] The operator then turns the handle 18, which drives the moving plate 13 to rotate. The moving plate 13 then drives the winding roller 7 to rotate along its axis. Two pull ropes 10 are fixed on the outer wall of the winding roller 7. As the winding roller 7 rotates, the two pull ropes 10 are continuously pulled and wound on the outer wall of the winding roller 7. Since the other ends of the two pull ropes 10 pass through the fixing blocks 8 on both sides of the bottom of the cable tray plate 1 and are connected to the fixing blocks 8 at the bottom of the adjusting plate 3, the pull ropes 10 pull the adjusting plate 3 towards the cable tray plate 1 during the winding process, so that the adjusting plate 3 slides slowly inward, thereby reducing the distance between the cable tray plate 1 and the two adjusting plates 3, and thus the width of the placement box 6 when placed on top of the cable tray plate 1 can be adjusted.

[0031] During the movement of the adjusting plate 3, it will simultaneously drive the two clamping plates 4 fixedly connected to it to move closer to each other, thereby clamping and fixing the side wall of the placement box 6 located above the cable tray plate 1. In order to enhance the clamping effect, the top of the two clamping plates 4 is provided with a support plate 19. The support plate 19 is inverted L-shaped, and a movable column 20 that can slide up and down is passed through its top. The bottom end of the movable column 20 is fixedly connected with an arc-shaped lower pressure plate 21, and a third spring 22 is provided between the outer wall of the movable column 20 and the inner wall of the support plate 19. During the process of the clamping plate 4 moving inward and clamping the placement box 6, the clamping plate 4 drives the support plate 19 to move together. The movement of the support plate 19 causes the lower pressure plate 21 to gradually approach and contact the side wall of the placement box 6. After contact, due to the cooperation of the arc structure and the action of clamping force, the lower pressure plate 21 moves upward to the top of the placement box 6, and in this process, the third spring 22 is compressed, thereby applying a downward pressing force to the top of the placement box 6, further stabilizing its position and preventing displacement due to vibration during use.

[0032] In addition, three anti-vibration plates 23 arranged in a triangle are provided on the outer wall of the cable tray pole 5. These anti-vibration plates are connected to the top of the wall by bolts. They provide additional stable support and anti-vibration buffer when the overall structure of the cable tray is subjected to vibration or offset load, thereby enhancing the overall stability and anti-vibration performance of the cable tray in complex environments. The entire adjustment structure realizes the adjustment and clamping of the cable tray width, ensuring the stability and reliability of the cable tray and the placement box 6 after installation.

[0033] This adjustment mechanism, through the cooperation of structures such as the winding roller 7, pull rope 10, adjusting plate 3, fixing block 8, rotating handle 18, limiting ring 11 and limiting groove 12, realizes the flexible adjustment function of the width between the cable tray plate 1 and the adjusting plate 3. The operator drives the winding roller 7 to rotate by rotating the handle 18, and pulls the pull rope 10 fixed on the adjusting plate 3, so that the two adjusting plates 3 slide towards the cable tray plate 1 at the same time and gradually approach each other. It can flexibly adjust the width of the cable tray according to different specifications or multiple sets of cable trays, which solves the drawback of the traditional cable tray support structure that requires welding or bolt fixing and the overall width cannot be adjusted. It effectively improves the adaptability of the cable tray structure in complex wiring environments and enhances the construction flexibility and versatility.

[0034] Furthermore, during the inward movement of the adjusting plate 3, the clamping plate 4, together with the support plate 19, the moving column 20, the lower pressure plate 21, and the third spring 22, constitute a multi-directional clamping and limiting structure for the placement box 6. The clamping plate 4 drives the inverted L-shaped support plate 19 to move, thereby causing the arc-shaped lower pressure plate 21 to apply a continuous downward pressing force to the top of the placement box 6 under the action of the spring 22. Combined with the lateral clamping action of the two clamping plates 4 on both sides of the placement box 6, the placement box 6 is stably fixed above the cable tray plate 1, avoiding displacement or falling off under vibration conditions. In addition, the three anti-seismic plates 23 set on the outside of the cable tray rod 5 in a triangular distribution improve the overall seismic performance and enhance the safety and reliability of the cable tray installation.

[0035] Further, see attached document. Figure 5 As shown, the tops of the two top pillars 14 are arc-shaped. When the two top pillars 14 move upward, they will press against the sidewalls of the two ramp plates 15 respectively. The two ramp plates 15 will move closer together due to the pressure from the top pillars 14, and will cause the limiting pillar 16 to retract back into the winding roller 7. The arc shape of the tops of the top pillars 14 reduces the friction when pressing against the ramp plates 15 during the upward movement. Under the inward pressing force of the top pillars 14, the ramp plates 15 will move towards the middle synchronously, thereby causing the limiting pillar 16 fixed on its sidewall to retract back into the winding roller 7 and exit from the limiting groove 12 on the inner wall of the limiting ring 11, which facilitates the release of the limiting state of the winding roller 7.

[0036] Further, see attached document. Figure 6As shown, the end of the lower pressure plate 21 near the placement box 6 is arc-shaped. When the two clamping plates 4 approach the placement box 6, they will simultaneously drive the two support plates 19 to move. When the two support plates 19 move, they will drive the lower pressure plate 21 on the inner wall to contact the side wall of the placement box 6. When the arc-shaped end of the lower pressure plate 21 contacts the side wall of the placement box 6, it will squeeze the lower pressure plate 21 to move upward and move to the top of the placement box 6. When the lower pressure plate 21 moves upward, it will compress the third spring 22, which will cause the support plate 19 to move so that the lower pressure plate 21 gradually approaches and contacts the side wall of the placement box 6. After contact, due to the cooperation of the arc structure and the clamping force, the lower pressure plate 21 moves upward to the top of the placement box 6, thereby applying a downward pressing force to the top of the placement box 6 and further stabilizing its position.

[0037] Further, see attached document. Figure 1 As shown, three sides of the outer wall of the two cable tray rods 5 are fixedly connected with anti-seismic plates 23. The top of the anti-seismic plates 23 is fixedly connected to the top of the wall by bolts. By setting three anti-seismic plates 23 in a triangular arrangement on the outer wall of the cable tray rods 5, and these anti-seismic plates are connected to the top of the wall by bolts, additional stable support in all directions is provided when the overall structure of the cable tray is subjected to vibration or offset load, thereby enhancing the overall stability and seismic performance of the cable tray in complex environments.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength adjustable cable tray seismic support device, comprising a cable tray plate (1), characterized in that: The cable tray plate (1) has grooves (2) on both sides. Adjusting plates (3) are slidably connected to the inner walls of the two grooves (2). Clamping plates (4) are fixedly connected to the opposite ends of the two adjusting plates (3). Cable tray rods (5) are fixedly connected to the opposite sides of the two clamping plates (4). The top of the cable tray rods (5) is fixed to the top of the wall by bolts. A cable storage box (6) is placed between the top of the cable tray plate (1) and the adjusting plates (3). An adjustment mechanism for adjusting the distance between the two adjusting plates (3) is provided between the bottom of the cable tray plate (1) and the two adjusting plates (3). The adjustment mechanism includes a winding roller (7) rotatably connected to the bottom of the cable tray plate (1). Fixing blocks (8) are fixedly connected to the bottom sides of the cable tray plate (1) and the bottom sides of the two adjustment plates (3) near the cable tray plate (1). A first spring (9) is fixedly connected between the fixing blocks (8) at the bottom of the cable tray plate (1) and the fixing blocks (8) at the bottom of the adjustment plates (3). Two pull ropes (10) are fixedly connected to the outer wall of the winding roller (7). The two pull ropes (10) pass through the fixing blocks (8) at the bottom sides of the cable tray plate (1) and are fixedly connected to the fixing blocks (8) at the bottom of the adjustment plates (3).

2. The high-strength adjustable cable tray seismic support device according to claim 1, characterized in that, The bottom of the bridge plate (1) is fixedly connected to a limiting ring (11). The inner wall of the limiting ring (11) is provided with multiple equally spaced limiting grooves (12). The winding roller (7) is located inside the limiting ring (11). The inside of the winding roller (7) is slidably connected to a moving plate (13). The top of the moving plate (13) is fixedly connected to two top posts (14). The top of the inner wall of the winding roller (7) is slidably connected to two ramps (15). The ramps (15) are arranged opposite to each other. The side walls of the two ramps (15) are fixedly connected to limiting posts (16). One end of the limiting post (16) penetrates the outer wall of the winding roller (7). The opposite side of the two ramps (15) is fixedly connected to a second spring (17). The bottom of the moving plate (13) is fixedly connected to a rotating handle (18) for rotating the winding roller (7).

3. The high-strength adjustable cable tray seismic support device according to claim 1, characterized in that, The top of each of the two clamping plates (4) is fixedly connected to a support plate (19). The support plate (19) is in the shape of an inverted L. A movable column (20) is inserted through the top of the support plate (19). A lower pressure plate (21) is fixedly connected to the bottom of the movable column (20). The lower pressure plate (21) is slidably connected to the inner wall of the support plate (19). A third spring (22) is sleeved on the outer wall of the movable column (20). The third spring (22) is fixedly connected between the inner wall of the support plate (19) and the top of the lower pressure plate (21).

4. The high-strength adjustable cable tray seismic support device according to claim 2, characterized in that, The tops of the two top columns (14) are arc-shaped. When the two top columns (14) move upward, they will squeeze the sidewalls of the two ramps (15) respectively. The two ramps (15) will move closer to each other due to the squeezing of the top columns (14) and drive the limiting column (16) to retract back into the winding roller (7).

5. A high-strength adjustable cable tray seismic support device according to claim 3, characterized in that, The two clamping plates (4) are L-shaped. When the winding roller (7) rotates, it pulls the pull ropes (10) at both ends to wind around the outer wall of the winding roller (7). The pull ropes (10) pull the adjusting plate (3) to adjust the width between the bridge plate (1) and the adjusting plate (3). When the adjusting plate (3) moves, it will drive the two clamping plates (4) to move closer to each other and clamp on the outer wall of the placement box (6).

6. The high-strength adjustable cable tray seismic support device according to claim 3, characterized in that, The lower pressure plate (21) is arc-shaped at one end near the placement box (6). When the two clamping plates (4) approach each other near the placement box (6), they will simultaneously drive the two support plates (19) to move. When the two support plates (19) move, they will drive the lower pressure plate (21) on the inner wall to contact the side wall of the placement box (6). When the arc-shaped end of the lower pressure plate (21) contacts the side wall of the placement box (6), it will squeeze the lower pressure plate (21) to move upward and move to the top of the placement box (6). When the lower pressure plate (21) moves upward, it will compress the third spring (22).

7. The high-strength adjustable cable tray seismic support device according to claim 1, characterized in that, The outer walls of the two cable tray rods (5) are fixedly connected with three sides of the anti-seismic plate (23), and the top of the anti-seismic plate (23) is fixedly connected to the top of the wall by bolts.

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