One-side fixed section insulator fixing device

Abstract

A one-side fixed type section insulator fixing device is provided for use in installing section insulators in an overhead line system for urban rail transit. The system comprises a flat arm brace 1, double sleeve ears 2, stay wires 3, connecting plates 4, and insulating pipes 5. The flat arm brace has one set of double sleeve ears fixedly connected to its end and two sets to its front end, with the two sets of double sleeve ears at the front end connected to two stay wires via bolts and split pins. Furthermore, both ends of the insulating pipe are connected to two connecting plates via bolts, and one end of the connecting plate is fixed to the double sleeve ears at the center of the flat arm brace. While conventional fixing devices have issues such as structural constraints, complex construction sites, and difficulty adapting to elevated curved sections, this system has the advantage of being able to flexibly adapt to narrow or special installation environments without modifying existing civil engineering structures, while ensuring the safety of train operation.

Description

[Technical Field]

[0001] The present invention relates to the technical field of urban rail transit power supply equipment, and in particular to a one-side fixed type section insulator fixing device. [Background technology]

[0002] Section insulators are extremely important components of overhead line sections, providing electrical insulation while maintaining mechanical connection, but installation of section insulators can be inconvenient in certain special usage scenarios. For example, in the electrical section of a curved track throat before entering a covered train depot, conventional double-fixed section insulators have the disadvantage of being inconvenient to level and install. Poor section insulator leveling can lead to problems such as abnormal wear on the pantograph, and even worse, can cause the electric overhead line to break.

[0003] Publication number CN219947947U discloses a new type of section insulator, but this utility model only optimizes the structure of the section insulator itself, improving safety and pantograph passage, but does not optimize the installation of parts, making it difficult to use in certain situations.

[0004] However, section insulators must be attached to both the left and right sides using catenary wires or spreader slings. If the installation conditions are not met, anchor stay wires must be used to attach them to the civil structure, which increases the complexity of the construction and affects the reliability of the construction. Therefore, this invention provides a one-sided fixed section insulator fixing device. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Chinese Utility Model Patent CN219947947U Summary of the Invention [Problem to be solved by the invention]

[0006] The installation of section insulators in urban rail transit overhead line systems has been plagued by structural constraints, complex construction sites, and the difficulty of adapting to elevated curved sections. In particular, there was a need for a fixing device that could flexibly adapt to narrow or special installation environments without modifying the existing civil engineering structure, while also ensuring the safety of train operations. [Means for solving the problem]

[0007] In order to solve the above technical problems, one embodiment of the present invention discloses a one-sided fixed section insulator fixing device comprising a flat arm brace, double sleeve ears, stay wires, a connecting plate, and an insulating pipe, wherein the flat arm brace has one set of double sleeve ears fixedly connected to the end end and two sets of double sleeve ears fixedly connected to the front end, and the two sets of double sleeve ears are connected to two stay wires on the sides via bolts and split pins, respectively, the flat arm brace is provided with two sets of double sleeve ears, both ends of the insulating pipe are connected to two connecting plates via bolts, and one ends of the two connecting plates are each connected to two sets of double sleeve ears in the center of the flat arm brace via bolts.

[0008] Furthermore, according to one preferred embodiment, a one-sided fixed section insulator fixing device is disclosed, further comprising two sets of leveling pull rings from which two sliders, one at the front and one at the back, are suspended, the sliders and leveling pull rings are connected with bolts, each of the leveling pull rings is provided with a suspension hole, and hooks to which slings are attached are attached to the suspension holes at both ends of the leveling pull rings, and a slide card movably attached to the insulating pipe is commonly connected to the two slings.

[0009] Furthermore, according to one preferred embodiment, a one-sided fixed section insulator fixing device is disclosed, further comprising contact wires connected to two sliders, and characterized in that two insulating rods are fixedly connected between the two sliders by bolts and nuts.

[0010] Furthermore, according to one preferred embodiment, there is disclosed a one-side fixed type section insulator fixing device, characterized in that arc extinguishing rods are provided on both sides of the slider, respectively.

[0011] The one-sided fixed section insulator fixing device is disclosed, characterized in that the slider is made of a copper alloy, the insulating rod is made of a high-strength polymer material, and the arc extinguishing rod is made of austenitic stainless steel or copper with good arc extinguishing performance. [Effects of the Invention]

[0012] The advantageous effects of the present invention compared with the prior art are as follows:

[0013] (1) The one-sided fixed section insulator fixing device based on this invention enables the rapid installation of section insulators in some special construction situations without destroying the civil engineering structure, without using a chain-type suspension catenary wire, a simple spreader sling, or a special anchor stay wire.

[0014] (2) According to this invention, when installing section insulators in circuits of ultra-high curved sections, leveling by the installer is easy, which leads to ensuring the safety of train operation.

[0015] (3) This device utilizes existing overhead wiring components and has good construction compatibility and applicability. [Brief explanation of the drawings]

[0016] [Figure 1] Overall structure diagram of this invention. [Figure 2] Schematic diagram of the structure of the application scenario based on this invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] Embodiment: As shown in Figures 1 and 2, it is composed of a flat arm brace (1), a sleeve double ear (2), a stay wire (3), a connecting plate (4), and an insulating pipe (5), and one pair of sleeve double ears (2) is fixedly connected to the end of the flat arm brace (1), providing mounting conditions for the section insulator.

[0018] Two pairs of sleeve double ears (2) are fixedly connected to the front end of the flat arm brace, and the two pairs of sleeve double ears (2) are connected to two stay wires (3) on each side, which are used to increase the stability of the entire structure.

[0019] The insulating pipe (5) and the upper flat arm brace (1) are firmly connected by two connecting plates (4) and two sets of sleeve double ears (2). Two sets of leveling pull rings (9) are further provided, on which slides (11) are suspended, which are installed in a staggered manner. The two slides (11) are both connected to the contact line (13) to reinforce and fix it. The slides (11) are fixedly connected to the bottom of the leveling pull rings (9). The leveling pull rings (9) have suspension holes on both ends. Hooks (8) are connected to the suspension holes on both ends of the bearing pull ring, and the other side of the hooks (8) is connected to the sling (7) through the hooks (8). The sling (7) suspends the entire lower device through two holes at the bottom of the slide card (6). The slide card (6) can slide the insulating tube (5). The two slides (11) are made of aluminum alloy, and two insulating rods 10 are fixed between them with bolts and nuts to mechanically connect them. The bottom is kept horizontal, making it easy for the pantograph to slide smoothly.

[0020] An arc extinguishing rod (12) is provided on each side of the slider (11). The insulating rod (10) is made of a high-strength polymer material, which is lightweight and compact, has good stain resistance and water repellency, stable structure, corrosion resistance, anti-aging properties, easy maintenance, and high operational efficiency. The arc extinguishing rod (12) is made of austenitic stainless steel or copper material with good conductivity and arc extinguishing properties.

[0021] The above description is merely a few specific embodiments based on the present invention, and of course, it should not be construed as limiting the scope of the present invention. It is expressly stated that any modifications or replacements completed within the technical idea disclosed in the present invention by a person skilled in the art should be included in the scope of the present invention's registration claims. [Explanation of symbols]

[0022] 1 Flat Arm Brace 2 Sleeve Double Ear 3 Staywire 4 Connecting plate 5. Insulating tube 6 Slide Cards 7 Spreader Sling 8 Hooks 9 Leveling Pull Ring 10 insulating rods 11 Slider 12 Arc extinguishing rod 13 Contact Line

Claims

1. It is composed of a flat arm brace (1), a sleeve double ear (2), a stay wire (3), a connecting plate (4), and an insulating tube (5), The flat arm brace (1) has one pair of sleeve double ears (2) fixedly connected to its distal end and two pairs of sleeve double ears (2) fixedly connected to its front end, The two sets of sleeve double ears (2) are connected to two stay wires (3) via bolts and split pins on the sides, respectively. The insulating pipe (5) is connected to two connecting plates (4) at both ends via bolts, A one-sided fixed section insulator fixing device characterized in that one end of each of the two connecting plates (4) is connected to two sets of sleeve double ears (2) in the center of the flat arm brace (1) via bolts.

2. The apparatus further includes two sets of leveling pull rings (9) on which two sliders (11) are suspended, one at the front and one at the back, respectively; The slider (11) and the leveling pull ring (9) are connected by bolts, The one-sided fixed section insulator fixing device according to claim 1, characterized in that each of the leveling pull rings (9) is provided with a suspension hole, and a hook (8) to which a sling (7) is attached is attached to each of the suspension holes at both ends of the leveling pull ring (9), and a slide card (6) movably attached to the insulating pipe (5) is commonly connected to the two slings (7).

3. 3. The one-sided fixed section insulator fixing device according to claim 2, further comprising contact wires (13) connected to the two sliders (11), and two insulating rods (10) fixedly connected between the two sliders (11) by bolts and nuts.

4. 3. The one-side fixed type section insulator fixing device according to claim 2, wherein arc extinguishing rods (12) are provided on both sides of the slider (11).

5. 3. The one-sided fixed section insulator fixing device according to claim 2, wherein the slider (11) is made of a copper alloy, the insulating rod (10) is made of a high-strength polymer material, and the arc extinguishing rod (12) is made of austenitic stainless steel or a specific copper alloy with good arc extinguishing performance.

Images