Lightweight telescopic cable bridge

Abstract

The invention relates to a light telescopic cable bridge which comprises an outer shell and an inner shell, the inner shell is telescopically arranged in the outer shell through a sliding block, a pushing device is arranged on the outer shell and comprises a sliding rail, a rotating part, a pushing rod and a grip, and the inner shell and a telescopic part are driven to stretch out and draw back through relative movement of the pushing rod and the sliding rail. The flexible adjustment of the cable bridge is ensured, the push rod is a hollow cylinder, a telescopic piece is arranged in the push rod, a first push rod is arranged at one end of the telescopic piece, the telescopic piece is connected with a fixing part through a flexible push rod, the fixing part is fixed to the inner shell, and through the relative movement of the structure, fixation between the outer shell and the inner shell of the two bridges is achieved.

Description

Technical Field

[0001] The invention relates to a lightweight and retractable cable bridge. Background Art

[0002] In modern industry, cable trays, as an important device for laying power, communication and control cables, are widely used in buildings, industrial facilities, data centers, power systems and other fields. Cable trays not only need to meet the physical support and protection of cables, but also need to adapt to different installation environments and wiring requirements during use. However, with the increasing requirements for building and equipment space, traditional cable trays need to be upgraded in weight.

[0003] Most of the existing cable tray systems are single structures, which require a lot of time to fix during installation. The trays need to be installed one by one and then fixed, and the nuts and other installation structures make the overall structure of the tray heavier.

[0004] Therefore, there is a need for a lightweight retractable cable tray that can solve the problem that the fixing structures between existing cable trays require additional fixing structures, resulting in increased weight. Summary of the invention

[0005] The purpose of the present invention is to solve the deficiencies of the above prior art and provide a lightweight retractable cable tray. The cable tray is fixed by a retractable structure, eliminating the need for additional fixing devices, making installation easy and lighter after installation. The following is a specific solution:

[0006] A lightweight retractable cable tray comprises an outer shell and an inner shell, the inner shell being retractably arranged in the outer shell through a slider, the outer shell being provided with a pushing device, the pushing device comprising a slide rail, a rotating part, a pushing rod and a handle, the pushing rod being a hollow cylinder, one end of the pushing rod being connected to the outer shell through a rotating part, the slide rail being passed through the pushing rod, a telescopic part being arranged in the pushing rod, the slide rail being passed through the telescopic part, one end of the telescopic part being provided with a first push rod, one end of the first push rod being connected to a flexible push rod, one end of the flexible push rod being connected to a fixed part, the fixed part being fixed on the inner shell, the telescopic part being able to push the first push rod along the extension direction of the pushing rod through the relative movement of the pushing rod and the slide rail, a first clamping part being provided on the left side of the outer shell, a second clamping part being provided on the right side of the inner shell, the first clamping part and the second clamping part being able to cooperate and fix with each other.

[0007] Furthermore, the telescopic member includes a connecting rod, a fixed block and a friction block, the fixed block is fixed to the inner wall of the push rod, the friction block is movably mounted on the slide rail, the fixed block and the friction block are respectively connected to a connecting rod, and the connecting rods are connected to each other.

[0008] Furthermore, the slide rail is arranged at the center of the push rod, utilizing the lever principle to save effort.

[0009] Furthermore, a handle is provided at one end of the push rod.

[0010] Furthermore, the first clamping member is a protrusion with a slope facing left, three of the first clamping members are provided, and gaps are provided between the first clamping members, three of the second clamping members are provided, and the slope of the third clamping member faces right, and gaps are provided between the third clamping members. This clamping structure utilizes the ductility of metal, is easy to install, and is not easy to fall off, and the gaps can be better injected with fixing glue.

[0011] Furthermore, through holes are provided at the spaced positions of the first clamping member, and the through holes are used for injecting fixing glue.

[0012] Furthermore, the through hole can be injected with fixing glue, and the fixing glue is epoxy resin curing glue or polyurethane glue. The epoxy resin curing glue has excellent bonding strength, and can firmly fix the card between the inner and outer shells to ensure that the cable tray is stable and not loose during the telescopic operation; the polyurethane glue has excellent elasticity and shock resistance, and can effectively absorb external shocks and vibrations, and prevent the cable tray from being damaged or loosened by external forces during use.

[0013] Furthermore, the friction block is made of glass fiber, which has excellent mechanical strength and wear resistance, and can withstand frequent friction between the push rod and the slide rail, thereby reducing wear and extending the service life.

[0014] Furthermore, the material of the sliding blocks is polytetrafluoroethylene, which is more wear-resistant.

[0015] Furthermore, the inner shell is made of aluminum alloy, and the structure is lighter.

[0016] Beneficial effect: The present invention adopts a retractable inner and outer double-layer shell design, so that the installation between the bridge frame shells is no longer limited to external fixing devices. Due to the contact surface and strength reasons, the external fixing devices often use stronger and heavier steel. The fixing method of the present invention is more convenient, and at the same time eliminates the external structure, the overall structure is lighter, and it is easier to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view schematic diagram of a lightweight retractable cable tray;

[0018] Figure 2 It is a cross-sectional view diagram of a lightweight retractable cable tray after installation;

[0019] Figure 3 It is a schematic diagram of a lightweight retractable cable tray from a top view;

[0020] In the figure: 100, outer shell, 110, first clamping member, 120, through hole, 200, inner shell, 210, second clamping member, 220, slider, 300, pushing device, 310, pushing rod, 320, handle, 330, connecting rod, 340, slide rail, 350, first push rod, 360, flexible push rod, 370, fixing part, 380, rotating part, 390, friction block, 391, fixing block, 392, telescopic member. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0022] Please see Figure 1-Figure 3 A lightweight retractable cable tray includes an outer shell 100 and an inner shell 200. The inner shell 200 is retractably arranged in the outer shell 100 through a slider 220. The outer shell 100 is provided with a pushing device 300. The pushing device 300 includes a slide rail 340, a rotating part 380, a pushing rod 310 and a handle 320. The pushing rod 310 is a hollow cylinder. One end of the pushing rod 310 is connected to the outer shell 100 through the rotating part 380. The slide rail 340 is passed through the pushing rod 310. A telescopic member 392 is provided in the pushing rod 310. The slide rail 340 is passed through the telescopic member 392. A first push rod 350 is provided at one end of the telescopic member 392, one end of the first push rod 350 is connected to the flexible push rod 360, one end of the flexible push rod 360 is connected to the fixing part 370, and the fixing part 370 is fixed on the inner shell 200. Through the relative movement of the push rod 310 and the slide rail 340, the telescopic member 392 can push the first push rod 350 along the extension direction of the push rod 310. A first clamp 110 is provided on the left side of the outer shell 100, and a second clamp 210 is provided on the right side of the inner shell 200. The first clamp 110 and the second clamp 210 can cooperate and fix with each other.

[0023] The telescopic member 392 includes a connecting rod 330, a fixed block 391 and a friction block 390. The fixed block 391 is fixed to the inner wall of the push rod 310. The friction block 390 is movably mounted on the slide rail 340. The fixed block 391 and the friction block 390 are respectively connected to a connecting rod 330, and the connecting rods 330 are connected to each other. The slide rail 340 is arranged at the center of the push rod 310. A handle 320 is arranged at one end of the push rod 310. The first clamp 110 is a convex block with a slope facing left. There are three first clamps 110, and there are intervals between the first clamps 110. There are three second clamps 210, and the slope of the third clamp is right, and there are intervals between the third clamps. A through hole 120 is arranged at the interval of the first clamp 110, and the through hole 120 can be injected with fixing glue. The fixing glue is epoxy resin curing glue or polyurethane glue. The material of the friction block 390 is glass fiber, and the material of the slider 220 is polytetrafluoroethylene. The material of the inner shell 200 is aluminum alloy.

[0024] Implementation example: During installation, first connect the inner shell 200 to another outer shell 100. At this time, the first clamp 110 and the second clamp 210 are in contact with each other, but have not been fixed. At this time, hold the handle 320 and push the push rod 310 downward. Under the action of the lever principle, the friction between the friction block 390 and the slide rail 340 can be used more effortlessly. Under the action of the friction force, the connecting rod 330 forms a downward force along the extension direction of the axis of the pushing device 300, pushing the first push rod 350 and the flexible push rod 360, pushing the fixing part 370 to move to the right, and pushing the inner shell 200 to move to the right. When the first clamp 110 and the second clamp 210 are clamped under the thrust, the gap between the two coincides, and then the fixing glue is injected into the gap to complete the fixation. After fixation, the pushing device 300 is removed. The slide rail 340 can also be used as a force-bearing bracket when fixing the bridge frame.

[0025] The present invention adopts a double-layer telescopic shell with a solid glue fixing structure, which is lighter in weight after fixing and is easy to install.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A lightweight retractable cable tray, characterized in that: The invention comprises an outer shell and an inner shell, wherein the inner shell is telescopically arranged in the outer shell through a sliding block, the outer shell is provided with a pushing device, the pushing device comprises a slide rail, a rotating part, a pushing rod and a handle, the pushing rod is a hollow cylinder, one end of the pushing rod is connected to the outer shell through a rotating part, the slide rail is passed through the pushing rod, a telescopic part is arranged in the pushing rod, the slide rail is passed through the telescopic part, one end of the telescopic part is provided with a first pushing rod, one end of the first pushing rod is connected to a flexible pushing rod, one end of the flexible pushing rod is connected to a fixing part, the fixing part is fixed on the inner shell, through the relative movement of the pushing rod and the slide rail, the telescopic part can push the first pushing rod along the extension direction of the pushing rod, a first clamping part is provided on the left side of the outer shell, and a second clamping part is provided on the right side of the inner shell, the first clamping part and the second clamping part can be fixed to each other in coordination.

2. A lightweight retractable cable tray according to claim 1, characterized in that: The telescopic member comprises a connecting rod, a fixed block and a friction block, wherein the fixed block is fixed to the inner wall of the push rod, the friction block is movably sleeved on the slide rail, the fixed block and the friction block are respectively connected to a connecting rod, and the connecting rods are connected to each other.

3. The lightweight retractable cable tray according to claim 1, characterized in that: The slide rail is arranged at the center position of the push rod.

4. The lightweight retractable cable tray according to claim 1, characterized in that: A handle is provided at one end of the push rod.

5. The lightweight retractable cable tray according to claim 1, characterized in that: The first clamping member is a protrusion with a slope facing leftwards, three first clamping members are provided, and intervals are provided between the first clamping members, three second clamping members are provided, and the slope of the third clamping member faces rightwards, and intervals are provided between the third clamping members.

6. A lightweight retractable cable tray according to claim 5, characterized in that: Through holes are provided at the spaced positions of the first clamping member.

7. A lightweight retractable cable tray according to claim 6, characterized in that: The through hole can be injected with fixing glue, and the fixing glue is epoxy resin curing glue or polyurethane glue.

8. The lightweight retractable cable tray according to claim 1, characterized in that: The friction block is made of glass fiber.

9. The lightweight retractable cable tray according to claim 1, characterized in that: The material of the sliding blocks is polytetrafluoroethylene.

10. The lightweight retractable cable tray according to claim 1, characterized in that: The material of the inner shell is aluminum alloy.

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