Electrical support wire clamp

Abstract

The utility model discloses an electrical support wire clamp, which comprises a first wire clamp, a parallel cable and a second wire clamp, the first wire clamp is arranged on the supporting frame, and a first wire groove and a second wire groove are formed in the first wire clamp; the protection wire penetrates through the first wire slot, and the first wire clamp clamps and fixes the protection wire through the first wire slot; the parallel cable passes through the second wire duct. The number of the second wire clamps is two, and the two second wire clamps are used for fixedly connecting the two ends of the parallel cable with the protection wire. When the electrical support wire clamp provided by the utility model is used, the parallel cable is arranged on the first wire clamp, so that the parallel cable can temporarily connect the broken protection wire when the protection wire is broken due to long-time use by the clamping section of the first wire clamp, the normal work of the protection wire is ensured, and the service life of the protection wire is prolonged. In addition, the first cable clamp can support and fix the parallel cable, and the stability of the connection of the parallel cable to the protection wire is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electrified railway contact networks, in particular to an electrical support wire clamp. Background Art

[0002] Electrified railways, a key component of the modern transportation system, rely on electric locomotives as powerful traction power, revolutionizing traditional railway operations. This transformation has not only greatly increased train speeds and carrying capacity, but also significantly reduced environmental pollution, demonstrating the harmonious coexistence of technology and environmental protection. The catenary network, the "lifeline" of electrified railways, is of undeniable importance. Like an efficient blood vessel, it accurately and reliably transmits electricity from the traction substation to each electric locomotive, ensuring the continuous and stable operation of trains on the tracks. Therefore, the operating status of the catenary network and the efficiency of its command execution directly affect the transportation efficiency and safety of the entire electrified railway system.

[0003] Within the complex structure of the overhead contact network, the PW conductor (protective conductor) plays a crucial role. It's not only a crucial safeguard for electrical safety but also a "firewall" against unexpected situations like lightning strikes and short circuits. PW conductors can be secured in a variety of ways, with support clamps and shoulder bracket suspension being the most common. Support clamps, in particular, are ingeniously designed, fulfilling the dual purpose of securing and supporting the PW conductor. Their quality directly impacts the stability and durability of the protective conductor.

[0004] However, while the currently widely used single-slot support clamps meet basic needs to a certain extent, they have gradually exposed some problems during long-term operation. Although pre-twisted protective wires are added during installation to reduce the wear and tear of the clamps on the PW wires, this protective measure is inadequate when faced with complex environmental factors such as wind, vibration from passing trains, and icing in extreme weather. These external factors cause the PW wires and their supporting structures to be frequently subjected to vibration and oscillation. Over time, fatigue gradually damages the wire material, increasing wear on the individual wires and even potentially causing the internal steel core to break. Once the PW wire breaks and falls off, it could not only invade the track, posing a direct threat to high-speed trains, but could also trigger a chain reaction, affecting the operational safety of the entire railway network. The potential risks and consequences are unimaginable. Utility Model Content

[0005] In view of this, the purpose of the present invention is to overcome the deficiencies in the related art, and the present invention provides an electrical support wire clamp.

[0006] The utility model provides the following technical solutions:

[0007] An electrical support wire clamp is used to support and fix a protective wire. The electrical support wire clamp comprises a first wire clamp, a parallel cable, and a second wire clamp.

[0008] The first wire clamp is installed on the support frame, and a first wire groove and a second wire groove are opened on the first wire clamp; the protective wire passes through the first wire groove, and the first wire clamp clamps and fixes the protective wire through the first wire groove; the parallel cable passes through the second wire groove; there are two second wire clamps, and the two second wire clamps are used to fix the two ends of the parallel cable to the protective wire respectively.

[0009] As a further improvement of the above technical solution, the first wire clamp includes a first base and a first upper cover, and the opposite end faces of the first base and the first upper cover are respectively provided with grooves corresponding to the first wire trough and the second wire trough, and the first base and the first upper cover are docked and installed to enclose the first wire trough and the second wire trough, and the first base is installed on the support frame.

[0010] As a further improvement of the above technical solution, a step hole is opened on the first base, a bolt is passed through the step hole, and the bolt passes through the step hole and is threadedly connected to the support frame.

[0011] As a further improvement of the above technical solution, the second wire clamp includes a second base and a second upper cover, and grooves are respectively provided on the opposite end faces of the second base and the second upper cover. The second base and the second upper cover are docked and installed to form a first through-groove and a second through-groove corresponding to the first wire groove and the second wire groove; the protective wire is passed through the first through-groove, and the parallel cable is passed through the second through-groove.

[0012] As a further improvement of the above technical solution, the second base and the second upper cover are symmetrically arranged.

[0013] As a further improvement of the above technical solution, the first base and the first upper cover, and the second base and the second upper cover are fixedly connected by a plurality of bolts respectively.

[0014] As a further improvement of the above technical solution, the first wire trough, the second wire trough, the first through-groove, and the second through-groove are all arranged parallel to each other.

[0015] As a further improvement of the above technical solution, the first wire trough, the second wire trough, the first through-groove, and the second through-groove are all located on the same plane.

[0016] As a further improvement of the above technical solution, the distance between the first wire groove and the second wire groove is greater than the distance between the first through groove and the second through groove.

[0017] As a further improvement of the above technical solution, a bending portion is provided at the end of the parallel cable close to the second through slot.

[0018] As a further improvement of the above technical solution, a pre-twisted protective wire is sleeved on the section where the protective wire passes through the first wire trough.

[0019] As a further improvement of the above technical solution, the parallel cables, the second wire clamp and the protective wire are made of the same material.

[0020] As a further improvement of the above technical solution, the opening areas at both ends of the first wire trough and the second wire trough are respectively larger than the cross-sectional areas of their middle portions.

[0021] As a further improvement of the above technical solution, the openings at both ends of the first wire trough and the second wire trough are trumpet-shaped.

[0022] Compared with the related art, the beneficial effects of the present invention are:

[0023] During installation, the electrical support clamp provided by this utility model first requires securely mounting the first clamp on the support frame. Following this, the protective wire and parallel cable are routed through the first and second troughs, respectively, according to established procedures, ensuring a rational and compact wiring layout. Subsequently, the two second clamps are used to securely connect the two ends of the parallel cable to the protective wire. This process is not only simple and quick, but also greatly improves installation efficiency and convenience.

[0024] In practical applications, the primary clamp, as a core component, bears the heavy responsibility of providing solid support and secure fixation for the protective cable. However, the long-term service life of the protective cable in complex and changing natural environments, such as strong winds, vibrations caused by high-speed trains, and ice cover in extreme climates, often leads to frequent relative movement and subtle vibrations between the protective cable and the primary clamp. Over time, the internal material of the protective cable may gradually accumulate fatigue damage due to the constant stress, eventually leading to serious problems such as fracture. However, the parallel cable is connected to the protective cable at each end using a secondary clamp. In the unfortunate event of a protective cable fracture, the secondary clamp allows the parallel cable to quickly respond and temporarily connect the fracture. This emergency mechanism not only ensures that the protective cable can continue to maintain its essential function at critical moments, preventing power outages or system shutdowns caused by fractures, but also effectively avoids potential safety accidents caused by the fractured section accidentally falling due to lack of support, significantly improving the safety and reliability of the entire electrical system.

[0025] At the same time, the design of the first wire clamp also takes into account the support and fixation of the parallel cables, ensuring the stability of the parallel cables when connected to the protection line, avoiding connection failure caused by shaking or displacement of the parallel cables themselves, and further consolidating the overall stability and durability of the system.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic structural diagram of an electrical support wire clamp from one perspective in one embodiment of the present utility model is shown;

[0029] Figure 2 A schematic structural diagram of a first wire clamp from one perspective in one embodiment of the present utility model is shown;

[0030] Figure 3 A schematic structural diagram of a first base from one perspective in one embodiment of the present utility model is shown;

[0031] Figure 4 A structural schematic diagram of a first upper cover from one perspective in an embodiment of the present utility model is shown.

[0032] Description of main component symbols:

[0033] 110-protective wire; 120-support frame; 130-pre-twisted protective wire; 200-first wire clamp; 201-first wire trough; 202-second wire trough; 210-first base; 211-step hole; 212-bolt; 220-first top cover; 300-parallel cable; 310-bending part; 400-second wire clamp; 401-first through-slot; 402-second through-slot; 410-second base; 420-second top cover. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0037] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] Example 1

[0040] like Figure 1 As shown, this embodiment provides an electrical support clamp for supporting and fixing the protective wire 110 . The electrical support clamp includes a first clamp 200 , a parallel cable 300 , and a second clamp 400 .

[0041] The first wire clamp 200 is installed on the support frame 120, and a first wire groove 201 and a second wire groove 202 are opened on the first wire clamp 200; the protective wire 110 passes through the first wire groove 201, and the first wire clamp 200 clamps and fixes the protective wire 110 through the first wire groove 201; the parallel cable 300 passes through the second wire groove 202; two second wire clamps 400 are provided, and the two second wire clamps 400 are used to fix the two ends of the parallel cable 300 to the protective wire 110 respectively.

[0042] To install the electrical support clamp provided in this embodiment, first securely attach the first clamp 200 to the support frame 120. Then, following the established process, thread the protective wire 110 and parallel cable 300 through the first and second cable ducts 201 and 202, respectively. Next, securely connect the two ends of the parallel cable 300 to the protective wire 110 using two second clamps 400.

[0043] In actual use, the first wire clamp 200 can provide support and fixation for the protective wire 110. However, when the protective wire 110 is in service for a long time in a complex and changeable natural environment, such as strong winds, vibrations caused by high-speed trains, and adverse conditions such as icing in extreme climates, these environmental factors often cause frequent relative movement or slight vibrations between the protective wire 110 and the first wire clamp 200. Over time, the internal material of the protective wire 110 may gradually accumulate fatigue damage due to continuous stress, which may eventually lead to serious problems such as breakage. The two ends of the parallel cable 300 are connected to the protective wire 110 through the second wire clamp 400. When the protection line 110 unfortunately breaks, the parallel cable 300 can respond quickly through the setting of the second wire clamp 400 to achieve temporary connection of the broken part. This emergency mechanism not only ensures that the protection line 110 can continue to maintain its basic functions at critical moments, preventing power outages or system shutdowns caused by breakage, but also effectively avoids safety accidents that may be caused by the broken section accidentally falling due to lack of support, greatly improving the safety and reliability of the entire electrical system.

[0044] At the same time, the design of the first wire clamp 200 also takes into account the support and fixation of the parallel cable 300, ensuring the stability of the parallel cable 300 when connected to the protection line 110, and avoiding the connection failure problem caused by the shaking or displacement of the parallel cable 300 itself.

[0045] like Figure 2As shown, in some embodiments, the first wire clamp 200 includes a first base 210 and a first upper cover 220, and the opposite end surfaces of the first base 210 and the first upper cover 220 are respectively provided with grooves corresponding to the first wire trough 201 and the second wire trough 202, the first base 210 and the first upper cover 220 are docked and installed and enclosed to form the first wire trough 201 and the second wire trough 202, and the first base 210 is installed on the support frame 120; when installing the first wire clamp 200, the protective wire 110 and the parallel cable 300 can be placed in the grooves corresponding to the first base 210 first, and then the first base 210 and the first upper cover 220 can be docked and installed, which is convenient for disassembly and assembly, and facilitates the maintenance and replacement of the protective wire 110 and the parallel cable 300 in the later stage.

[0046] like Figure 3 As shown, in some embodiments, a step hole 211 is opened on the first base 210, and a bolt 212 is passed through the step hole 211, and the bolt 212 passes through the step hole 211 and is threadedly connected to the support frame 120; the first base 210 is connected to the support frame 120 through a single bolt 212, so that the first wire clamp 200 can rotate relative to the support frame 120, thereby making the protection line 110 passed through the first wire groove 201 swing when it is affected by the external environment. The clamp 200 can follow and follow, reducing the relative friction and interaction between the protective wire 110 and the inner wall of the first wire groove 201, and extending the service life of the protective wire 110; and when installing the first wire clamp 200, first connect the first base 210 to the support frame 120, and then fix the first upper cover 220 to the first base 210. The first upper cover 220 can provide protection for the bolt 212 passing through the step hole 211, ensuring a reliable connection between the first base 210 and the support seat.

[0047] In some embodiments, the second wire clamp 400 includes a second base 410 and a second upper cover 420, and grooves are respectively provided on the opposite end surfaces of the second base 410 and the second upper cover 420. The second base 410 and the second upper cover 420 are docked and installed and enclosed to form a first through-groove 401 and a second through-groove 402 corresponding to the first wire groove 201 and the second wire groove 202; the protective wire 110 is passed through the first through-groove 401, and the parallel cable 300 is passed through the second through-groove 402; when installing the second wire clamp 400, the ends of the protective wire 110 and the parallel cable 300 can be placed in the grooves corresponding to the second base 410 first, and then the second base 410 and the second upper cover 420 can be docked and installed, which is convenient for disassembly and assembly, and facilitates the maintenance and replacement of the protective wire 110 and the parallel cable 300 in the later stage.

[0048] In some embodiments, the second base 410 and the second upper cover 420 are symmetrically arranged to facilitate processing and production and reduce manufacturing costs.

[0049] In some embodiments, the first base 210 and the first upper cover 220, and the second base 410 and the second upper cover 420 are fixedly connected by multiple bolts 212, respectively, so that the installation of this embodiment is more convenient, the construction efficiency is improved, and the subsequent regular maintenance is facilitated; of course, in other embodiments of the present invention, the above-mentioned components can also be connected by structures such as snap fasteners.

[0050] In some embodiments, the first wire trough 201, the second wire trough 202, the first through-groove 401, and the second through-groove 402 are all arranged parallel to each other; when installing this embodiment, the protective wire 110 and the parallel cable 300 are kept parallel as much as possible to avoid mutual interference and influence between the protective wire 110 and the parallel cable 300 when the protective wire 110 is in normal use.

[0051] In some embodiments, the first wire groove 201, the second wire groove 202, the first through groove 401, and the second through groove 402 are all located on the same plane, so as to ensure that the forces on various parts of the first wire clamp 200 and the second wire clamp 400 are more balanced, thereby reducing the probability of reversal of the first wire clamp 200 and the second wire clamp 400.

[0052] In some embodiments, the distance between the first wire trough 201 and the second wire trough 202 is greater than the distance between the first through-groove 401 and the second through-groove 402, further reducing the probability of mutual interference between the protective wire 110 and the parallel cable 300. In addition, when the protective wire 110 breaks, the probability of the broken end of the protective wire 110 jumping and interfering with the parallel cable 300 can be effectively reduced, thereby ensuring a stable connection of the parallel cable 300.

[0053] In some embodiments, a bending portion 310 is provided at the end of the parallel cable 300 close to the second through slot 402 , which helps the parallel cable 300 to avoid the protective wire 110 in parallel.

[0054] In some embodiments, a pre-twisted protective wire 130 is sleeved on the section of the protective wire 110 passing through the first wire trough 201 to provide protection for the outer layer of the protective wire 110 and extend the service life of the protective wire 110 .

[0055] In some embodiments, the parallel cable 300 , the second wire clamp 400 , and the protection wire 110 are made of the same material, so that the parallel cable 300 can provide stable and reliable connectivity even when the protection wire 110 is broken.

[0056] like Figure 3 、 Figure 4 As shown, in some embodiments, the opening areas at both ends of the first wire trough 201 and the second wire trough 202 are respectively larger than the cross-sectional area of ​​their own middle parts; by expanding and avoiding the openings at both ends of the first wire trough 201 and the second wire trough 202, the frequency of friction between the protective wire 110 and the parallel cable 300 and the edges of the openings at both ends of the first wire trough 201 and the second wire trough 202 when affected by the outside world can be effectively reduced, thereby further extending the service life of the protective wire 110 and the parallel cable 300.

[0057] In some embodiments, both ends of the first wire groove 201 and the second wire groove 202 are trumpet-shaped for ease of processing.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electrical support clamp for supporting and fixing a protective wire (110), characterized in that: include: A first wire clamp (200) is mounted on the support frame (120), and a first wire groove (201) and a second wire groove (202) are provided on the first wire clamp (200); the protection wire (110) passes through the first wire groove (201), and the first wire clamp (200) clamps and fixes the protection wire (110) through the first wire groove (201); A parallel cable (300) is passed through the second cable duct (202); A second wire clamp (400), two second wire clamps (400) are provided, and the two second wire clamps (400) are used to respectively fix the two ends of the parallel cable (300) to the protective wire (110).

2. The electrical support clamp according to claim 1, characterized in that The first wire clamp (200) comprises a first base (210) and a first upper cover (220); grooves corresponding to the first wire groove (201) and the second wire groove (202) are respectively provided on opposite end surfaces of the first base (210) and the first upper cover (220); the first base (210) and the first upper cover (220) are docked and installed to enclose the first wire groove (201) and the second wire groove (202); the first base (210) is mounted on the support frame (120).

3. The electrical support clamp according to claim 2, characterized in that: A stepped hole (211) is provided on the first base (210), a bolt (212) is passed through the stepped hole (211), and the bolt (212) passes through the stepped hole (211) and is threadedly connected to the support frame (120).

4. The electrical support clamp according to claim 1, characterized in that The second wire clamp (400) comprises a second base (410) and a second upper cover (420); grooves are respectively provided on opposite end surfaces of the second base (410) and the second upper cover (420); the second base (410) and the second upper cover (420) are docked and installed with each other to form a first through-groove (401) and a second through-groove (402) corresponding to the first wire groove (201) and the second wire groove (202); the protective wire (110) is passed through the first through-groove (401), and the parallel cable (300) is passed through the second through-groove (402).

5. The electrical support clamp according to claim 4, characterized in that: The first wire groove (201), the second wire groove (202), the first through groove (401), and the second through groove (402) are all arranged parallel to each other.

6. The electrical support clamp according to claim 5, characterized in that: The distance between the first wire groove (201) and the second wire groove (202) is greater than the distance between the first through groove (401) and the second through groove (402).

7. The electrical support clamp according to claim 6, characterized in that: The parallel cable has a bent portion at an end portion close to the second through slot.

8. The electrical support clamp according to any one of claims 1 to 7, characterized in that: A pre-twisted protective wire (130) is sleeved on the section of the protective wire (110) passing through the first wire trough (201).

9. The electrical support clamp according to any one of claims 1 to 7, characterized in that: The parallel cable (300), the second wire clamp (400) and the protection wire (110) are made of the same material.

10. The electrical support clamp according to any one of claims 1 to 7, characterized in that The opening areas at both ends of the first wire trough (201) and the second wire trough (202) are respectively larger than the cross-sectional areas of their middle portions.

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