Double-layer shielding polyvinyl fluoride insulated cable
By designing a multi-layered protective structure and electromagnetic shielding layer for double-shielded polyvinyl fluoride insulated cables, the problem of cable outer layer being eroded is solved, achieving mechanical protection and electromagnetic interference resistance for the cables, and ensuring the reliability of the cables when used underground.
Patent Information
- Application Number
- CN202422641597.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When existing insulated cables are used underground, the outer layer lacks a protective sheath, making them susceptible to being chewed by animals and causing breakage.
A double-shielded polyvinyl fluoride insulated cable was designed, comprising an outer structural sheath, an inner core, a support assembly, and a protective assembly. By utilizing the first and second protective shells, hinges, abutment pads, and connecting components, and secured by screws and nuts, a multi-layer protective structure is formed to prevent erosion. At the same time, the inner and outer shielding layers and the insulation layer enhance the electromagnetic interference resistance.
It effectively protects the outer layer of the cable from being chewed by animals, enhances the mechanical properties and electromagnetic shielding effect of the cable, and ensures that the cable can be used normally in harsh environments.
Smart Images
Figure CN223486721U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, and in particular to a double-shielded polyvinyl fluoride insulated cable. Background Technology
[0002] Insulated cables are wires or cables covered with insulating materials, used to transmit electrical energy or signals while ensuring that current or signals do not leak into the external environment or become interfered with during transmission. Depending on the insulating materials, structure, application, and performance, insulated cables can be classified into various types, such as plastic insulated cables, rubber insulated cables, and mineral insulated cables.
[0003] Existing patent CN219267326U describes an insulated cable comprising an inner core structure and an outer layer structure. A support frame is installed on the outer side of the inner core structure, and the outer layer structure is installed on the outer side of the support frame. In this invention, the support frame provides better support, effectively preventing the cable from being flattened and reducing the probability of cable insulation damage and leakage.
[0004] However, when using existing patented insulated cables, since the cables are buried underground and lack a protective sheath, the outer layer of the cable is easily gnawed by animals such as rats, which can cause the cable to break and affect its use. Utility Model Content
[0005] The purpose of this utility model is to provide a double-shielded polyvinyl fluoride insulated cable, which solves the problem mentioned above that when using insulated cables, since the cables are buried underground and the outer layer of the cable is not protected, the outer layer of the cable is easily chewed by animals such as rats, which can cause the cable to break and affect its use.
[0006] To achieve the above objectives, this utility model provides a double-shielded polyvinyl fluoride insulated cable, comprising an outer structural sleeve, an inner core, a support assembly, and a protective assembly. The inner core is fixedly installed inside the outer structural sleeve, the support assembly is installed inside the outer structural sleeve, and the protective assembly comprises a first protective shell, a hinge, a second protective shell, an abutment pad, and a connecting member. The first protective shell is fixedly installed on the outer structural sleeve, the hinge is fixedly installed on the first protective shell, the second protective shell is installed on the hinge, the second protective shell is rotatably connected to the hinge, the abutment pad is fixedly installed on the second protective shell, and the connecting member is installed on the first protective shell.
[0007] The connecting component includes a first horizontal piece, a second horizontal piece, and a fixing component. The first horizontal piece is fixedly installed on the first protective shell, the second horizontal piece is fixedly installed on the second protective shell, and the fixing component is installed on the second horizontal piece.
[0008] The fixing component includes a screw and a nut. The screw is mounted on the second cross plate, passes through the second cross plate, and is located on the first cross plate. The nut is mounted on the screw and is threadedly connected to the screw.
[0009] The support assembly includes a support frame and an insulating component. The support frame is fixedly installed inside the outer structural sleeve, and the insulating component is installed on the inner core.
[0010] The insulating component includes an inner shielding layer, an insulating layer, and an outer shielding layer. The inner shielding layer is fixedly installed on the inner core, the insulating layer is fixedly installed on the inner shielding layer, and the outer shielding layer is fixedly installed on the insulating layer.
[0011] This utility model discloses a double-layer shielded polyvinyl fluoride insulated cable. A first protective shell is fixedly mounted on the outer structural sleeve, a hinge is fixedly mounted on the first protective shell, a second protective shell is mounted on the hinge, and an abutment pad is fixedly mounted on the second protective shell. In use, the inner core has an inner shielding layer and an outer shielding layer, with an insulating layer installed between the inner and outer shielding layers to effectively resist electromagnetic interference. A support frame supports the interior of the outer structural sleeve. The second protective shell is flipped upwards, causing it to rotate on the hinge, allowing the abutment pad to abut against the top of the outer structural sleeve, placing the second cross plate on the first cross plate. Then, a screw is threaded onto the second cross plate, penetrating the first cross plate. A nut is then used to reinforce the screw's fixation on the second cross plate, securing the second cross plate to the first cross plate. The second protective shell is fixed to the first protective shell, thus strengthening the protection of the outer structural sleeve and preventing it from being chewed by animals such as rats, thereby protecting the cable. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the overall structure of the double-shielded polyvinyl fluoride insulated cable of this utility model.
[0014] Figure 2 This is a three-dimensional diagram of the double-shielded polyvinyl fluoride insulated cable of this utility model.
[0015] Figure 3 This is a right view of the double-shielded polyvinyl fluoride insulated cable of this utility model.
[0016] In the diagram: 101-outer structural sleeve, 102-inner core, 103-first protective shell, 104-hinge, 105-second protective shell, 106-abutment pad, 107-first horizontal piece, 108-second horizontal piece, 109-screw, 110-nut, 111-support frame, 112-inner shielding layer, 113-insulation layer, 114-outer shielding layer. Detailed Implementation
[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0018] Please see Figures 1 to 3 ,in Figure 1 This is a schematic diagram of the overall structure of the double-shielded polyvinyl fluoride insulated cable of this utility model; Figure 2 This is a three-dimensional drawing of the double-shielded polyvinyl fluoride insulated cable of this utility model; Figure 3 This is a right view of the double-shielded polyvinyl fluoride insulated cable of this utility model.
[0019] This utility model provides a double-shielded polyvinyl fluoride insulated cable, comprising an outer structural sleeve 101, an inner core 102, a support assembly, and a protective assembly. The protective assembly includes a first protective shell 103, a hinge 104, a second protective shell 105, an abutment pad 106, and a connecting member. The connecting member includes a first horizontal piece 107, a second horizontal piece 108, and a fixing component. The fixing component includes a screw 109 and a nut 110. The support assembly includes a support frame 111 and an insulating component. The insulating component includes an inner shielding layer 112, an insulating layer 113, and an outer shielding layer 114. This solution addresses the problem that, when using insulated cables buried underground, the lack of a protective sleeve makes the outer layer susceptible to damage from rodents and other animals, leading to cable breakage and affecting usability. It is understood that this solution can be used in communication data transmission scenarios.
[0020] In this embodiment, the inner core 102 is fixedly installed inside the outer structural sleeve 101, the support assembly is installed inside the outer structural sleeve 101, and the protective assembly is installed on the outer structural sleeve 101, thereby preventing the outer structural sleeve 101 from being chewed by animals such as rats and protecting the cable. The inner core 102 serves to transmit current; the support assembly supports the interior of the outer structural sleeve 101 and provides insulation, preventing the outer structural sleeve 101 from being crushed by external forces.
[0021] The first protective shell 103 is fixedly installed on the outer structural sleeve 101, the hinge 104 is fixedly installed on the first protective shell 103, the second protective shell 105 is installed on the hinge 104 and is rotatably connected to the hinge 104, the abutment pad 106 is fixedly installed on the second protective shell 105, and the connecting member is installed on the first protective shell 103. The first protective shell 103 is welded to the outer structural sleeve 101, protecting the lower half of the outer structural sleeve 101 and supporting the hinge 104 and the second protective shell 105. The hinge 104 is welded to the first protective shell 103, supporting the second protective shell 105 to rotate. The second protective shell 105 protects the upper half of the outer structural sleeve 101, rotating on the hinge 104 and cooperating with the first protective shell 103 to protect the entire outer structural sleeve 101. The abutment pad 106 is located inside the second protective shell 105, and when the second protective shell 105 rotates and abuts against the first protective shell 103... During contact, the contact pad 106 abuts against the top of the outer structural sleeve 101, increasing the friction between the second protective shell 105 and the outer structural sleeve 101; the connecting member brings the second protective shell 105 into contact with the first protective shell 103; in use, the second protective shell 105 is flipped upwards, causing it to rotate on the hinge 104, so that the contact pad 106 abuts against the top of the outer structural sleeve 101, and the second protective shell 105 is connected to the first protective shell 103 through the connecting member. This strengthens the protection of the outer structural sleeve 101 by the second protective shell 105 and the first protective shell 103, thereby preventing the outer structural sleeve 101 from being chewed by animals such as rats and protecting the cable.
[0022] Secondly, the first horizontal piece 107 is fixedly installed on the first protective shell 103, the second horizontal piece 108 is fixedly installed on the second protective shell 105, and the fixing component is installed on the second horizontal piece 108. The first horizontal piece 107 is welded onto the first protective shell 103, and the first horizontal piece 107 supports the second horizontal piece 108. The second horizontal piece 108 is welded onto the second protective shell 105, and the second horizontal piece 108 corresponds to the first horizontal piece 107. When the second protective shell 105 is flipped, the second horizontal piece 108 is positioned on the first horizontal piece 107, connecting the second horizontal piece 108 and the first horizontal piece 107 together. The fixing component fixes the second horizontal piece 108 onto the first horizontal piece 107. After the second protective shell 105 is flipped onto the outer structural sleeve 101, the second horizontal piece 108 abuts against the first horizontal piece 107, and the fixing component fixes the second horizontal piece 108 onto the first horizontal piece 107, thereby fixing the second protective shell 105 onto the first protective shell 103.
[0023] Furthermore, the screw 109 is mounted on the second horizontal plate 108 and passes through the second horizontal plate 108, and is located on the first horizontal plate 107. The nut 110 is mounted on the screw 109 and is threadedly connected to the screw 109. The screw 109 rotates threadedly on the second horizontal piece 108 and passes through the second horizontal piece 108 and the first horizontal piece 107, so that the second horizontal piece 108 is connected to the first horizontal piece 107; the nut 110 rotates on the screw 109 until it abuts against the second horizontal piece 108, so that the second horizontal piece 108 is fixed on the first horizontal piece 107, and at the same time, it also strengthens the fixation of the screw 109; after the second horizontal piece 108 abuts against the first horizontal piece 107, the screw 109 is placed on the second horizontal piece 108, and the screw 109 is rotated, so that the screw 109 rotates on the second horizontal piece 108 and passes through the first horizontal piece 107, and then the nut 110 is used to rotate on the screw 109 to strengthen the fixation of the screw 109, so that the second horizontal piece 108 is fixed on the first horizontal piece 107.
[0024] Therefore, the support frame 111 is fixedly installed inside the outer structural sleeve 101, and the insulating member is installed on the inner core 102. The support frame 111 is located inside the outer structural sleeve 101, and the support frame 111 supports the interior of the outer structural sleeve 101 to prevent the outer structural sleeve 101 from being crushed by force; the insulating member covers the inner core 102 and plays a role in electrical insulation.
[0025] Then, the inner shielding layer 112 is fixedly installed on the inner core 102, the insulating layer 113 is fixedly installed on the inner shielding layer 112, and the outer shielding layer 114 is fixedly installed on the insulating layer 113. The inner shielding layer 112 and the outer shielding layer 114 form a double-layer shield. The inner shielding layer 112 is used to reduce electromagnetic interference inside the inner core 102, while the outer shielding layer 114 is used to resist interference from external electromagnetic waves. The cooperation between the inner shielding layer 112 and the outer shielding layer 114 improves the overall shielding effect. The insulating layer 113 is located between the inner shielding layer 112 and the outer shielding layer 114. The insulating layer 113 is made of polyvinyl fluoride, which has excellent insulation properties, chemical corrosion resistance, and high temperature resistance, enabling the inner core 102 to maintain good electrical and mechanical properties even in harsh environments.
[0026] In this embodiment, a double-shielded polyvinyl fluoride insulated cable, when in use, has an inner core 102 with an inner shielding layer 112 and an outer shielding layer 114, and an insulation layer 113 installed between the inner shielding layer 112 and the outer shielding layer 114, which can effectively resist electromagnetic interference. The support frame 111 supports the interior of the outer structural sleeve 101. The second protective shell 105 is flipped upward, causing it to rotate on the hinge 104, so that the abutment pad 106 abuts against the top of the outer structural sleeve 101, thus... The second horizontal piece 108 is located on the first horizontal piece 107. Then, the screw 109 is threaded onto the second horizontal piece 108 and passes through the first horizontal piece 107. The nut 110 is then used to strengthen the fixation of the screw 109 on the second horizontal piece 108, so that the second horizontal piece 108 is fixed on the first horizontal piece 107. The second protective shell 105 is fixed on the first protective shell 103, which strengthens the protection of the outer structural sleeve 101, thereby preventing the outer structural sleeve 101 from being chewed by animals such as rats, and protecting the cable.
[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A double-shielded polyvinyl fluoride insulated cable, comprising an outer sheath, an inner core, and a support assembly, wherein the inner core is fixedly installed within the outer sheath, and the support assembly is installed within the outer sheath, characterized in that, It also includes protection components; The protective assembly includes a first protective shell, a hinge, a second protective shell, an abutment pad, and a connecting member. The first protective shell is fixedly installed on the outer structural sleeve, the hinge is fixedly installed on the first protective shell, the second protective shell is installed on the hinge, the second protective shell is rotatably connected to the hinge, the abutment pad is fixedly installed on the second protective shell, and the connecting member is installed on the first protective shell.
2. The double-shielded polyvinyl fluoride insulated cable as described in claim 1, characterized in that, The connecting component includes a first horizontal piece, a second horizontal piece, and a fixing component. The first horizontal piece is fixedly installed on the first protective shell, the second horizontal piece is fixedly installed on the second protective shell, and the fixing component is installed on the second horizontal piece.
3. The double-shielded polyvinyl fluoride insulated cable as described in claim 2, characterized in that, The fixing component includes a screw and a nut. The screw is mounted on the second cross plate, passes through the second cross plate, and is located on the first cross plate. The nut is mounted on the screw and is threadedly connected to the screw.
4. The double-shielded polyvinyl fluoride insulated cable as described in claim 1, characterized in that, The support assembly includes a support frame and an insulating component. The support frame is fixedly installed inside the outer structural sleeve, and the insulating component is installed on the inner core.
5. The double-shielded polyvinyl fluoride insulated cable as described in claim 4, characterized in that, The insulating component includes an inner shielding layer, an insulating layer, and an outer shielding layer. The inner shielding layer is fixedly installed on the inner core, the insulating layer is fixedly installed on the inner shielding layer, and the outer shielding layer is fixedly installed on the insulating layer.