Telescopic cable trough convenient to adjust

Abstract

The utility model discloses a telescopic cable trough convenient to adjust, which relates to the technical field of cable troughs and comprises a first cable trough, a second cable trough is arranged at one end of the first cable trough, and extension mechanisms are arranged on the outer sides of the first cable trough and the second cable trough. According to the utility model, through the extension mechanism, the positions of the first cable trough and the second cable trough are automatically adjusted, so that the situation that the structures of the first cable trough and the second cable trough are deformed or damaged due to thermal expansion and cold contraction can be effectively prevented, and meanwhile, through the mutual cooperation with the first covering sleeve plate, the second covering sleeve plate and the sliding baffle plate, the cable trough can be conveniently covered. Openings at the top ends of the first cable trough and the second cable trough can be covered all the time, so that the safety of optical cables and cables is effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cable troughs, in particular to a telescopic cable trough which is convenient to adjust. Background Technique

[0002] A cable trough, also known as a cable fire trough or a cable protection trough, is a device used for installing and protecting cables and optical cables. In existing bridges where trains pass, cable troughs for protecting cables and optical cables are also installed according to the requirements of cable and optical cable wiring.

[0003] When the bridge structure changes under the influence of temperature changes, live loads, concrete shrinkage and creep, etc., the cable trough installed at the bridge expansion joint will deform with the change of the bridge. This will cause the cable trough to expand and contract due to the change of the ambient temperature, resulting in damage to the structure of the cable trough on the bridge, damage to the cables and optical cables in the cable trough, causing communication interruption, and seriously affecting the safe operation of trains. Based on this, a telescopic cable trough which is convenient to adjust is provided now, which can eliminate the drawbacks of the existing device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a telescopic cable trough which is convenient to adjust, so as to solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A telescopic cable trough which is convenient to adjust, including a first cable trough, a second cable trough is arranged at one end of the first cable trough, and an extension mechanism is arranged outside the first cable trough and the second cable trough;

[0007] The extension mechanism includes:

[0008] Support bases located outside the bottoms of the first cable trough and the second cable trough, and the outer shape of the support bases is C-shaped.

[0009] On the basis of the above technical solutions, the utility model also provides the following optional technical solutions:

[0010] In an optional solution: The extension mechanism further includes:

[0011] A connection component located outside the second cable trough, and the connection component is used for extending and supporting the second cable trough;

[0012] The connection component includes:

[0013] Two fixed pulling plates symmetrically arranged outside the second cable trough, the two fixed pulling plates are respectively located inside both sides of the support base, and are both fixedly connected to the second cable trough by bolts. One side of each of the two fixed pulling plates away from the second cable trough is rotatably connected to a moving roller through a rotating shaft. The moving roller is located inside the support base, and a linear chute for the moving roller to slide is provided on the support base;

[0014] One end of each of the two fixed pulling plates is provided with a limiting component, and the limiting component is used for limiting and guiding the movement of the fixed pulling plate.

[0015] In an alternative embodiment: The limiting component includes:

[0016] A moving pulling plate fixedly connected to the outer wall of one end of the fixed pulling plate. Two symmetrically arranged limiting rods are provided above and below the moving pulling plate, and both of the two limiting rods are fixedly connected to the fixed pulling plate. A connecting sleeve frame that contacts the outer wall of the first cable trough is slidably sleeved on the outer walls of the moving pulling plate and the limiting rods. Connecting blocks are integrally formed at both the upper and lower ends of the connecting sleeve frame, and the connecting blocks are fixedly connected to the first cable trough by bolts;

[0017] A reset component is provided on the limiting rod, and the reset component is used to drive the fixed pulling plate to slide back to its original position.

[0018] In an alternative embodiment: The reset component includes:

[0019] A limiting baffle fixedly connected to the end of the moving pulling plate away from the fixed pulling plate. The limiting baffle is fixedly connected to the two limiting rods. Springs are sleeved on the outer walls of both of the two limiting rods. One end of each spring contacts the outer wall of the limiting baffle, and the other end of each spring contacts the outer wall of the connecting sleeve frame.

[0020] In an alternative embodiment: A fixed clamping plate is integrally formed at the top of the fixed pulling plate. A second covering plate is sleeved on the outer wall of the top of the second cable trough, and the outer wall of the fixed clamping plate is sleeved by the second covering plate.

[0021] In an alternative embodiment: A sliding baffle is integrally formed at one end of the second covering plate. A first covering plate is slidably sleeved on the outer wall of the sliding baffle. The first covering plate is sleeved on the outer wall of the top of the first cable trough and also sleeved on the outer wall of one of the connecting blocks at the top of the connecting sleeve frame.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] Through the extension mechanism, the utility model can effectively prevent the deformation or damage of the first cable trough and the second cable trough due to thermal expansion and contraction by automatically adjusting the positions of the first cable trough and the second cable trough. At the same time, through the mutual cooperation with the first covering plate, the second covering plate and the sliding baffle, the openings at the tops of the first cable trough and the second cable trough can always be covered, thereby effectively protecting the safety of optical cables and cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the utility model.

[0025] Figure 2 It is a schematic sectional structural diagram of the extension mechanism of the utility model.

[0026] Figure 3 It is a schematic overall structural diagram of the extension mechanism of the utility model.

[0027] NOTES ON REFERENCE NUMERALS IN THE DRAWINGS: 1. First cable trough; 201. Support base; 202. Connecting sleeve frame; 203. Fixed clamping plate; 204. Moving roller; 205. Fixed pulling plate; 206. Connecting block; 207. Spring; 208. Moving pulling plate; 209. Limit baffle; 2010. Limit rod; 3. First covering plate; 4. Second cable trough; 5. Second covering plate; 6. Sliding baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments.

[0029] In one embodiment, as Figures 1 - 3 shown, a telescopic cable trough that is easy to adjust includes a first cable trough 1. A second cable trough 4 is provided at one end of the first cable trough 1. An extension mechanism is provided outside the first cable trough 1 and the second cable trough 4;

[0030] The extension mechanism includes: a support base 201 located outside the bottoms of the first cable trough 1 and the second cable trough 4. The outer shape of the support base 201 is C-shaped. The second cable trough 4 can be supported through the support base 201 to improve the moving effect of the first cable trough 1 and the second cable trough 4 during thermal expansion and contraction;

[0031] In this embodiment, it should be particularly noted that one end of the first cable trough 1 far from the second cable trough 4 is fixed to the cable bridge trough body on the bridge, and an elastic rubber pad is fixedly connected at the connection position between the first cable trough 1 and the cable bridge trough. Through the elastic rubber pad, the vibration generated when the train passes over the bridge can be effectively reduced, and the influence on the structures of the first cable trough 1 and the cable bridge trough can be minimized. The support base 201 is fixed at the bridge expansion joint for suspending and supporting the connection position between the first cable trough 1 and the second cable trough 4 as well as the extension mechanism.

[0032] During the use process, due to the influence of the surrounding environment, the first cable trough 1 and the second cable trough 4 may extend or contract due to thermal expansion and contraction.

[0033] When the first cable trough 1 and the second cable trough 4 extend, during this process, the second cable trough 4 is pushed by the first cable trough 1 and moves horizontally through the extension mechanism. When the first cable trough 1 and the second cable trough 4 contract, reversing the above operation can make the second cable trough 4 move back to its original position. Thus, by automatically adjusting the positions of the first cable trough 1 and the second cable trough 4, it can effectively prevent the first cable trough 1 and the second cable trough 4 from deforming or being damaged due to thermal expansion and contraction, and effectively protect the safety of the optical cables and power cables.

[0034] In one embodiment, as Figures 2 - 3 shown, the extension mechanism further includes: a connection component located outside the second cable trough 4, and the connection component is used for extending and supporting the second cable trough 4.

[0035] The connection component includes: two fixed pull plates 205 symmetrically arranged outside the second cable trough 4. The two fixed pull plates 205 are respectively located inside both sides of the support base 201 and are both fixedly connected to the second cable trough 4 by bolts. One side of each of the two fixed pull plates 205 far from the second cable trough 4 is rotatably connected to a moving roller 204 through a rotating shaft. The moving roller 204 is located inside the support base 201. A linear sliding groove for the moving roller 204 to slide is formed on the support base 201. Through the linear sliding groove, the support base 201 can guide the movement of the moving roller 204 and support the moving roller 204.

[0036] Limit components are arranged at one end of each of the two fixed pull plates 205, and the limit components are used for limiting and guiding the movement of the fixed pull plates 205.

[0037] In one embodiment, as Figures 1 - 3As shown in the figure, the limiting component includes: a moving pull plate 208 fixedly connected to the outer wall of one end of the fixed pull plate 205. There are two symmetrically arranged limiting rods 2010 above and below the moving pull plate 208. Both limiting rods 2010 are fixedly connected to the fixed pull plate 205. A connecting sleeve frame 202 that contacts the outer wall of the first cable groove 1 is slidably sleeved on the outer walls of the moving pull plate 208 and the limiting rods 2010. Connecting blocks 206 are integrally formed at both the upper and lower ends of the connecting sleeve frame 202. The connecting blocks 206 are fixedly connected to the first cable groove 1 by bolts. The moving direction of the second cable groove 4 can be limited by the moving pull plate 208 and the limiting rods 2010;

[0038] A reset component is arranged on the limiting rod 2010, and the reset component is used to drive the fixed pull plate 205 to slide back to its original position;

[0039] In one embodiment, as Figures 1 - 3 shown, the reset component includes: a limiting baffle 209 fixedly connected to the end of the moving pull plate 208 away from the fixed pull plate 205. The limiting baffle 209 is fixedly connected to the two limiting rods 2010. Springs 207 are sleeved on the outer walls of both limiting rods 2010. One end of each spring 207 contacts the outer wall of the limiting baffle 209, and the other end of each spring 207 contacts the outer wall of the connecting sleeve frame 202. When the second cable groove 4 is restored, under the elastic push of the spring 207, the moving pull plate 208 and the limiting rods 2010 can be driven by the limiting baffle 209, and the second cable groove 4 can be pulled to move along with the end face of the first cable groove 1;

[0040] In one embodiment, as Figures 1 - 2 shown, a fixed clamping plate 203 is integrally formed at the top of the fixed pull plate 205. A second covering plate 5 is sleeved on the outer wall of the top of the second cable groove 4. The second covering plate 5 sleeves the outer wall of the fixed clamping plate 203. A sliding baffle 6 is integrally formed at one end of the second covering plate 5. The first covering plate 3 is slidably sleeved on the outer wall of the sliding baffle 6. The first covering plate 3 sleeves the outer wall of the top of the first cable groove 1 and also sleeves the outer wall of one of the connecting blocks 206 at the top of the connecting sleeve frame 202. During the process of thermal expansion and contraction of the first cable groove 1 and the second cable groove 4, the openings at the tops of the first cable groove 1 and the second cable groove 4 can be always covered by the first covering plate 3, the second covering plate 5, and the sliding baffle 6, effectively avoiding damage to the optical cables and cables inside the first cable groove 1 and the second cable groove 4.

[0041] The above embodiments disclose an adjustable telescopic cable trough. During its use, due to thermal expansion and contraction under the influence of the surrounding environment, the first cable trough 1 and the second cable trough 4 extend or contract. At this time, the second covering plate 5 drives the sliding baffle 6 to move synchronously with the second cable trough 4 under the drive of the second cable trough 4. At the same time, the sliding baffle 6 slides along the inner wall of the first covering plate 3 through movement. At this time, the first covering plate 3 remains stationary with the first cable trough 1, so that the opening at the connection position of the first cable trough 1 and the second cable trough 4 can always be covered;

[0042] When the first cable trough 1 and the second cable trough 4 extend, during this process, the second cable trough 4 is pushed by the first cable trough 1 and drives the fixed pull plate 205 to move through the bolt. At the same time, the fixed pull plate 205 drives the moving roller 204 to move along the inner wall of the linear chute of the support base 201 through the rotating shaft. At this time, the second covering plate 5 drives the sliding baffle 6 to move synchronously with the second cable trough 4 under the drive of the fixed pull plate 205 through the fixed clamping plate 203. At the same time, the sliding baffle 6 slides along the inner wall of the first covering plate 3 through movement, so that the opening at the connection position of the first cable trough 1 and the second cable trough 4 can always be covered;

[0043] During the movement of the second cable trough 4, at this time, the moving pull plate 208 and the limiting rod 2010 are both driven by the fixed pull plate 205 to slide along the inner wall of the connecting sleeve frame 202. At the same time, the limiting baffle 209 squeezes the spring 207 to contract under the drive of the moving pull plate 208 and the limiting rod 2010. At this time, the connecting block 206 is fixed by the bolt, so that the connecting sleeve frame 202 and the first covering plate 3 remain unchanged;

[0044] When the first cable trough 1 and the second cable trough 4 contract, reverse the above operations at this time to make the second cable trough 4 move back to its original position, effectively preventing the first cable trough 1 and the second cable trough 4 from deforming or being damaged due to thermal expansion and contraction, and effectively protecting the safety of optical cables and cables.

[0045] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A telescopic cable trough that is easy to adjust, comprising a first cable trough (1), a second cable trough (4) being arranged at one end of the first cable trough (1), characterized in that: Extension mechanisms are provided on the outer sides of the first cable trough (1) and the second cable trough (4); The extension mechanism comprises: a support base (201) located outside the bottom ends of the first cable trough (1) and the second cable trough (4), the support base (201) having a C-shaped appearance; The extension mechanism also includes: A connecting component located outside the second cable trough (4), the connecting component being used to extend and support the second cable trough (4); The connection assembly comprises: two fixed pull plates (205) symmetrically arranged on the outside of the second cable trough (4); the two fixed pull plates (205) are respectively located inside the two sides of the support base (201) and are fixedly connected to the second cable trough (4) by bolts; the two fixed pull plates (205) are rotatably connected to a movable roller (204) via a rotating shaft on the side away from the second cable trough (4); the movable roller (204) is located inside the support base (201); and a linear slide groove for the movable roller (204) to slide is provided on the support base (201); One end of each of the two fixed pull plates (205) is provided with a limiting component, and the limiting component is used to limit and guide the movement of the fixed pull plates (205).

2. The easily adjustable telescopic cable trough according to claim 1, characterized in that: The limiting assembly comprises: a movable pull plate (208) fixedly connected to the outer wall of one end of the fixed pull plate (205); two mutually symmetrical limiting rods (2010) are arranged above and below the movable pull plate (208); the two limiting rods (2010) are fixedly connected to the fixed pull plate (205); the outer walls of the movable pull plate (208) and the limiting rods (2010) are slidably sleeved with a connecting sleeve frame (202) in contact with the outer wall of the first cable trough (1); the upper and lower ends of the connecting sleeve frame (202) are integrally formed with a connecting block (206); the connecting block (206) is fixedly connected to the first cable trough (1) by bolts; The limiting rod (2010) is provided with a reset component, and the reset component is used to drive the fixed pull plate (205) to slide and reset.

3. The easily adjustable telescopic cable trough according to claim 2, characterized in that: The reset assembly comprises: a limit baffle (209) fixedly connected to one end of the movable pull plate (208) away from the fixed pull plate (205); the limit baffle (209) is fixedly connected to two limit rods (2010); the outer walls of the two limit rods (2010) are both sleeved with springs (207); one end of the spring (207) is in contact with the outer wall of the limit baffle (209); and the other end of the spring (207) is in contact with the outer wall of the connecting sleeve frame (202).

4. The easily adjustable telescopic cable trough according to claim 1, characterized in that: A fixed card plate (203) is integrally formed at the top of the fixed pull plate (205), a second covering plate (5) is sleeved on the outer wall of the top of the second cable trough (4), and the second covering plate (5) sleeves on the outer wall of the fixed card plate (203).

5. The easily adjustable telescopic cable trough according to claim 4, characterized in that: A sliding baffle (6) is integrally formed at one end of the second covering sleeve (5), and the outer wall of the sliding baffle (6) is slidably sleeved with the first covering sleeve (3), and the first covering sleeve (3) is sleeved on the top outer wall of the first cable trough (1) and on the outer wall of a connecting block (206) on one side of the top of the connecting sleeve frame (202).

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