Optical fiber signal transmission device for high-voltage explosion-proof frequency converter

Abstract

The utility model discloses a kind of optical fiber signal transmission devices for high-voltage explosion-proof frequency converter, including low-smoke halogen-free flame-retardant sheath, plastic-coated sheath, multistage flame-retardant protective sheath structure and reinforced support sleeve structure, the inside of the low-smoke halogen-free flame-retardant sheath is penetrated with plastic-coated sheath.The utility model low-smoke halogen-free flame-retardant sheath, plastic-coated sheath, high-silica cloth cover, calcium silicate coating cloth cover, stainless steel mesh cover and PVC sheath are cooperatively arranged, which is conducive to the cooperation of low-smoke halogen-free flame-retardant sheath, calcium silicate coating cloth cover and high-silica cloth cover during use, facilitating multistage flame-retardant explosion-proof purpose;The cooperation of calcium silicate coating cloth cover, stainless steel mesh cover, PVC sheath, high-silica cloth cover, PVC support strip, steel wire reinforced core and plastic optical fiber is conducive to the cooperation of stainless steel mesh cover and PVC support strip during use, facilitating optical fiber support purpose during use.

Description

Technical Field

[0001] This utility model belongs to the technical field of optical fiber signal transmission equipment, and in particular relates to an optical fiber signal transmission device for a high-voltage explosion-proof frequency converter. Background Technology

[0002] Fiber optic transmission refers to the transmission of data and signals using optical fibers as the medium. Optical fibers can be used not only to transmit analog and digital signals but also to meet the needs of video transmission. Fiber optic transmission typically uses optical cables, and the data transmission rate of a single optical fiber can reach several Gbps. Without repeaters, the transmission distance can reach tens of kilometers. However, existing fiber optic signal transmission devices suffer from inconveniences in fiber reinforcement and multi-stage flame retardancy during use. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a fiber optic signal transmission device for a high-voltage explosion-proof frequency converter. By setting up a multi-stage flame-retardant mechanism during use, it is convenient to carry out multi-stage flame-retardant work during use, and by setting up a support mechanism during use, it is convenient to reinforce the fiber optic cable during use.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a fiber optic signal transmission device for a high-voltage explosion-proof frequency converter, comprising a low-smoke halogen-free flame-retardant sheath, wherein a plastic-coated sheath penetrates the interior of the low-smoke halogen-free flame-retardant sheath, characterized in that the interior of the plastic-coated sheath is provided with a multi-level flame-retardant protective sleeve structure; and the interior of the multi-level flame-retardant protective sleeve structure is provided with a reinforcing support sleeve structure.

[0005] Preferably, the multi-level flame-retardant protective sleeve structure includes a calcium silicate coated fabric sleeve, the inner wall of which is bonded with a stainless steel mesh sleeve; the stainless steel mesh sleeve is bonded to the outer wall of the PVC sheath.

[0006] Preferably, the reinforceable support sleeve structure includes a high-silica fabric sleeve, and PVC support strips are inserted through the interior of the high-silica fabric sleeve; a steel wire reinforcing core is inserted through the middle position between the PVC support strips; and plastic optical fibers are sequentially arranged between the PVC support strips.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the combination of the low-smoke halogen-free flame-retardant sheath, the plastic-coated sheath, the high-silica cloth sheath, the calcium silicate-coated cloth sheath, the stainless steel mesh sheath, and the PVC sheath facilitates multi-level flame retardancy and explosion protection during use.

[0008] In this invention, the combination of the calcium silicate coated cloth sleeve, stainless steel mesh sleeve, PVC sheath, high silica cloth sleeve, PVC support strip, steel wire reinforcing core, and plastic optical fiber facilitates the support of the optical fiber during use by using the stainless steel mesh sleeve in conjunction with the PVC support strip. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the multi-level flame-retardant protective sleeve structure of this utility model.

[0011] Figure 3 This is a structural schematic diagram of the reinforced support sleeve structure of this utility model.

[0012] Figures 1 to 3 middle: 1. Low-smoke halogen-free flame-retardant sheath; 2. Plastic-coated sheath; 3. Multi-level flame-retardant protective sheath structure; 31. Calcium silicate coated cloth sheath; 32. Stainless steel mesh sheath; 33. PVC sheath; 4. Reinforced support sheath structure; 41. High-silica cloth sheath; 42. PVC support strip; 43. Steel wire reinforcing core; 44. Plastic optical fiber. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings: As attached Figure 1 and attached Figure 2 As shown, the fiber optic signal transmission device for a high-voltage explosion-proof frequency converter of this utility model includes a low-smoke halogen-free flame-retardant sheath 1, a plastic-coated sheath 2, a multi-level flame-retardant protective sleeve structure 3, and a reinforced support sleeve structure 4. The plastic-coated sheath 2 penetrates the interior of the low-smoke halogen-free flame-retardant sheath 1. The multi-level flame-retardant protective sleeve structure 3 is provided inside the plastic-coated sheath 2. The reinforced support sleeve structure 4 is provided inside the multi-level flame-retardant protective sleeve structure 3. The multi-level flame-retardant protective sleeve structure 3 includes a calcium silicate coated cloth sleeve 31, a stainless steel mesh sleeve 32, and a PVC sheath 33. The stainless steel mesh sleeve 32 is glued to the inner wall of the calcium silicate coated cloth sleeve 31. The stainless steel mesh sleeve 32 is glued to the outer wall of the PVC sheath 33. In use, the connection is made by using a connector or connecting device. During the connection process, the calcium silicate coated cloth sleeve 31 and the low-smoke halogen-free flame-retardant sheath 1 work together to achieve multi-level flame retardancy, while the stainless steel mesh sleeve 32 reinforces the cable as a whole.

[0014] In this implementation plan, in conjunction with the appendix Figure 3As shown, the reinforceable support sleeve structure 4 includes a high-silica fabric sleeve 41, PVC support strips 42, a steel wire reinforcing core 43, and a plastic optical fiber 44. The PVC support strips 42 are inserted through the interior of the high-silica fabric sleeve 41. A steel wire reinforcing core 43 is inserted through the middle of the PVC support strips 42. Plastic optical fibers 44 are sequentially arranged between the PVC support strips 42. The spacing between the PVC support strips 42 and the plastic optical fibers 44 facilitates support of the plastic optical fibers 44 during use, improving the support effect and thus enabling optical fiber transmission.

[0015] In this embodiment, specifically, the inner wall of the PVC sheath 33 is bonded with high-alumina cloth.

[0016] In this embodiment, specifically, the calcium silicate coated cloth sleeve 31 penetrates the interior of the plastic-coated sheath 2.

[0017] In this embodiment, specifically, the plastic optical fiber 44 is disposed around the steel wire reinforcing core 43; the PVC support strip 42 and the plastic optical fiber 44 are disposed at intervals.

[0018] In this embodiment, specifically, the high-silica cloth sleeve 41 penetrates the interior of the PVC sheath 33.

[0019] Working principle

[0020] In this utility model, during use, a connector or connecting device is used for connection. During the connection process, the calcium silicate coated cloth sleeve 31 and the low-smoke halogen-free flame-retardant sheath 1 work together to achieve multi-level flame retardancy. At the same time, the stainless steel mesh sleeve 32 is used to reinforce the cable as a whole. In addition, PVC support strips 42 and plastic optical fibers 44 are set at intervals to facilitate the support of the plastic optical fibers 44 during use, thereby improving the support effect of the plastic optical fibers 44 and completing the optical fiber transmission work.

[0021] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution of this utility model, falls within the protection scope of this utility model.

Claims

1. A fiber optic signal transmission device for a high-voltage explosion-proof frequency converter, comprising a low-smoke halogen-free flame-retardant sheath (1), wherein a plastic-coated sheath (2) penetrates the interior of the low-smoke halogen-free flame-retardant sheath (1); characterized in that, The fiber optic signal transmission device for the high-voltage explosion-proof frequency converter has a multi-level flame-retardant protective sleeve structure (3) inside the plastic-coated sheath (2); the multi-level flame-retardant protective sleeve structure (3) has a reinforced support sleeve structure (4) inside; the multi-level flame-retardant protective sleeve structure (3) includes a calcium silicate coated cloth sleeve (31), and a stainless steel mesh sleeve (32) is glued to the inner wall of the calcium silicate coated cloth sleeve (31); the stainless steel mesh sleeve (32) is glued to the outer wall of the PVC sheath (33); the reinforced support sleeve structure (4) includes a high-silica cloth sleeve (41), and PVC support strips (42) are respectively passed through the interior of the high-silica cloth sleeve (41); a steel wire reinforcing core (43) is passed through the middle position between the PVC support strips (42); and plastic optical fibers (44) are arranged sequentially between the PVC support strips (42).

2. The fiber optic signal transmission device for high-voltage explosion-proof frequency converters as described in claim 1, characterized in that, The calcium silicate coated cloth sleeve (31) penetrates the interior of the plastic-coated sheath (2).

3. The fiber optic signal transmission device for high-voltage explosion-proof frequency converters as described in claim 1, characterized in that, The high-silica fabric sleeve (41) penetrates the interior of the PVC sheath (33).

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