Contact line section insulator for a maintenance depot

Abstract

The utility model belongs to rail transit contact net power supply system discloses a kind of contact net sectional insulator for repair shop, including first suspension type insulator, vertical beam, suspension type insulation component, horizontal beam and conducting plate, two first suspension type insulators, along the first direction interval setting in repair shop crossbeam;Two vertical beams are connected in two contact net load bearing cable and two first suspension type insulators;Suspension type insulation component connects two vertical beams;The mounting section of two horizontal beams is connected in two vertical beams, two rigid-flexible transition sections extend along the direction of far from each other, two contact net wires are fixed on the mounting section and rigid-flexible transition section of two horizontal beams;Two conducting plates are arranged on two horizontal beams, and the bottom surface of conducting plate and the bottom surface of contact net wire are located in the same plane, and the distance between the symmetrical parts of two conducting plates and the overlapping length projected along the second direction are all greater than 330mm.The utility model can prevent the formation of conductive bridge caused by carbon powder accumulation, reduce security risk.

Description

Technical Field

[0001] This utility model relates to the technical field of power supply system for rail transit contact networks, and in particular to a contact network segment insulator used in a maintenance depot. Background Technology

[0002] With the development of high-speed railways, the daily maintenance and repair of EMU trains has become crucial to ensuring the safe and efficient operation of railways. As the core location for EMU train parking, maintenance, and preparation, the EMU depot's overhead contact system must power incoming trains, ensure low-speed movement, and assist in maintenance. Sectional insulators are the core components for achieving electrical segmentation of the overhead contact system within the depot; their performance directly affects the reliability of the overhead contact system's power supply and the safety of maintenance, and is vital to the operational efficiency and safety system of the EMU depot.

[0003] Currently, the sectional insulators widely used in the overhead contact system of various EMU depots in China are all designed with a seamless, insulated sliding track. This design is primarily based on the low operating speeds of EMUs within the depot. The insulated sliding track enables a smooth transition of the pantograph, avoiding the offline arcing problems that may occur with traditional sectional insulators with breaks during low-speed operation. Its core working principle utilizes the high-strength insulating material of the insulated sliding track to achieve electrical isolation between adjacent contact line sections while ensuring the smooth sliding of the pantograph's carbon sliding plate, thereby guaranteeing the normal movement of the EMU within the depot and meeting its power supply needs.

[0004] Although existing seamless sectional insulators are structurally designed to suit the low-speed operating environment inside the depot, they still have significant drawbacks in practical applications. When the train is running at low speed, the contact pressure between the pantograph's carbon contact plate and the insulating track is stable and the contact time is relatively long. This causes carbon powder generated from the wear of the carbon contact plate to easily adhere to the surface of the insulating track. Poor air circulation inside the depot, lacking natural wind or airflow disturbance, makes it difficult for the adhered carbon powder to detach on its own. Over time, this accumulates and forms a conductive "carbon powder bridge" on the surface of the insulating track. This conductive bridge completely destroys the electrical isolation function of the sectional insulator. When workers perform maintenance work such as de-energizing and grounding the contact network on one side of the sectional insulator, the high-voltage electricity from the contact network on the un-energized side will be conducted into the de-energized maintenance area through the conductive bridge, causing a high-voltage discharge to ground. This not only directly threatens the personal safety of personnel working on the top, posing a risk of electric shock, but also burns the insulating track itself, leading to equipment damage.

[0005] Therefore, there is an urgent need to provide a contact wire segment insulator for use in maintenance depots to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a contact network segment insulator for use in maintenance depots, which can prevent the formation of conductive bridges caused by carbon powder accumulation and reduce safety hazards.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] The contact wire section insulators used for maintenance in the depot include:

[0009] Two first suspension insulators are spaced apart along the first direction, with one end connected to the crossbeam of the maintenance depot and the other end extending along the vertical direction;

[0010] Two vertical beams, with their sidewalls connected to two contact wires in a corresponding manner, and one end of each vertical beam connected to one of the first suspension insulators in a corresponding manner along its length, and the other end extending along the vertical direction;

[0011] A suspension insulation assembly, connecting the two vertical beams along the first direction;

[0012] Two horizontal beams are symmetrically arranged along the first direction. Each horizontal beam includes a connected mounting section and a rigid-flexible transition section. The two mounting sections are connected one-to-one to the ends of the two vertical beams away from the first suspension insulator. The two rigid-flexible transition sections extend along the first direction away from each other. Two contact wires are fixed one-to-one to the mounting sections and rigid-flexible transition sections of the two horizontal beams.

[0013] Two conductive plates are disposed on opposite sides of the two horizontal beams along a second direction, with the bottom surface of the conductive plates and the bottom surface of the contact wires located on the same plane. The second direction is perpendicular to the first direction. Each conductive plate includes a connecting portion and a symmetrical portion connected to each other. The connecting portion is connected to the mounting section. The two symmetrical portions extend toward each other along the first direction. The distance between the two symmetrical portions is greater than 330 mm, and the overlap length of the projection of the two symmetrical portions along the second direction is greater than 330 mm.

[0014] Preferably, the contact wire segment insulator for use in the maintenance depot also includes a post insulator, which is located between the two vertical beams and detachably connected to the two vertical beams.

[0015] Preferably, both ends of the post insulator are provided with connectors, and the two vertical beams are provided with connecting seats on opposite sides. The connectors are provided with a first connecting hole, and the connecting seats are provided with a second connecting hole. The first connecting hole can be coaxially aligned with the second connecting hole, and the connectors and the connecting seats are connected by a connecting piece.

[0016] Preferably, the contact wire segment insulator used in the maintenance depot further includes two adjusting components. The two first suspension insulators are connected to the two adjusting components in a one-to-one correspondence. Each adjusting component includes a sleeve and two threaded rods. The two threaded rods are screwed into the sleeve from both ends. One of the threaded rods is connected to the crossbeam of the maintenance depot, and the other threaded rod is connected to the first suspension insulator.

[0017] Preferably, the suspension insulation assembly includes a second suspension insulator, an adjusting screw, and two locking nuts. One end of the second suspension insulator is connected to one of the vertical beams, and the other end is connected to the adjusting screw. The adjusting screw passes through the other vertical beam, and the two locking nuts are respectively located on both sides of the vertical beam and threadedly connected to the adjusting screw.

[0018] Preferably, the first suspension insulator is rotatably connected to the maintenance depot crossbeam, the vertical beam is rotatably connected to the first suspension insulator and the contact wire support cable, and the suspension insulation assembly is rotatably connected to the two vertical beams.

[0019] Preferably, the contact wire segment insulator used in the maintenance depot includes two suspension insulation components, which are spaced apart in the vertical direction.

[0020] Preferably, the horizontal beam is an H-beam, which is cut to form the installation section and the rigid-flexible transition section.

[0021] Preferably, the contact wire segment insulator used in the maintenance depot also includes multiple clamps, which are respectively disposed on the mounting section and the rigid-flexible transition section of the two horizontal beams, for clamping and fixing the contact wire.

[0022] Preferably, the first suspension insulator is made of silicone rubber composite material.

[0023] The beneficial effects of this utility model are:

[0024] This invention provides a contact wire segment insulator for use in maintenance depots. When the pantograph slide approaches the segment insulator from the flexible contact wire, the gradual stiffness change provided by the rigid-flexible transition section causes the contact wire to rise in a smooth curve. This stable transition characteristic effectively prevents sudden changes in the vertical acceleration of the pantograph, completely eliminating hard spots. This allows the pantograph slide to smoothly slide from one side of the contact wire onto the connection part of the conductive plate fixed to the horizontal beam. Because the symmetrical parts of the two conductive plates maintain a distance greater than 330mm, and the overlapping length of the projections of the two symmetrical parts in the second direction is also greater than 330mm, when the pantograph slides in the overlapping area formed by the symmetrical parts, it will not generate hard spots due to breaks, thus avoiding impact on the pantograph, nor will it generate arc discharge due to breaks. Furthermore, because the distance between the symmetrical parts of the two conductive plates is greater than 330mm, this air gap constitutes a physical isolation barrier, fundamentally eliminating the possibility of carbon powder forming a conductive bridge between the two conductive plates. Meanwhile, the insulation support system, composed of the first suspension insulator and suspension insulation components, provides highly reliable, anti-pollution flashover, and anti-aging electrical isolation protection, further reducing the safety hazard of high-voltage electric surge during maintenance operations. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the contact wire segment insulator used in the maintenance depot according to an embodiment of the present utility model;

[0026] Figure 2 This is a front view of the contact wire segment insulator used in the maintenance depot as described in this embodiment of the utility model;

[0027] Figure 3 This is a bottom view of the contact wire segment insulator used in the maintenance depot as described in this embodiment of the utility model;

[0028] Figure 4 This is a top view of the contact wire segment insulator used in the maintenance depot as described in this embodiment of the utility model;

[0029] Figure 5 This is a side view of the contact wire segment insulator used in the maintenance depot as described in an embodiment of this utility model.

[0030] In the picture:

[0031] 1. First suspension insulator;

[0032] 2. Vertical beam;

[0033] 3. Suspension insulation assembly; 31. Second suspension insulator; 32. Adjusting screw; 33. Locking nut;

[0034] 4. Horizontal beam; 41. Installation section; 42. Rigid-flexible transition section;

[0035] 5. Conductive plate; 51. Connecting part; 52. Symmetrical part;

[0036] 6. Post insulator; 61. Connector;

[0037] 7. Connecting base;

[0038] 8. Connectors;

[0039] 9. Adjusting assembly; 91. Sleeve; 92. Threaded rod;

[0040] 10. Wire clamp;

[0041] 100. Inspect the warehouse crossbeams;

[0042] 200. Catenary support cable;

[0043] 300. Contact wire. Detailed Implementation

[0044] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0048] like Figures 1-5 As shown, this utility model provides a contact wire segment insulator for use in a maintenance depot, including a first suspension insulator 1, vertical beams 2, a suspension insulation assembly 3, horizontal beams 4, and conductive plates 5. Two first suspension insulators 1 are spaced apart along a first direction, one end connected to a maintenance depot crossbeam 100, and the other end extending vertically. The sidewalls of two vertical beams 2 are correspondingly connected to two contact wire support cables 200, and one end of each vertical beam 2 along its length is correspondingly connected to the two first suspension insulators 1, while the other end extends vertically. The suspension insulation assembly 3 connects the two vertical beams 2 along the first direction. Two horizontal beams 4 are symmetrically arranged along the first direction, each horizontal beam 4 including a connected mounting section 41 and a rigid-flexible transition section 42. The two mounting sections 41 are correspondingly connected to the ends of the two vertical beams 2 away from the first suspension insulators 1, and the two rigid-flexible transition sections 42 extend vertically. The first direction extends in a direction away from each other. Two contact wires 300 are fixed one-to-one to the mounting section 41 and the rigid-flexible transition section 42 of the two horizontal beams 4. Two conductive plates 5 are arranged on opposite sides of the two horizontal beams 4 along a second direction, with the bottom surface of the conductive plate 5 and the bottom surface of the contact wire 300 on the same plane. The second direction is perpendicular to the first direction. The conductive plate 5 includes a connecting portion 51 and symmetrical portions 52. The connecting portion 51 is connected to the mounting section 41. The two symmetrical portions 52 extend towards each other along the first direction, with a distance greater than 330 mm between them. The overlap length of the projection of the two symmetrical portions 52 along the second direction is greater than 330 mm. (Refer to...) Figure 1 The X direction is the first direction, and the Y direction is the second direction.

[0049] As the pantograph slide approaches the segmented insulator from the flexible contact wire 300, the gradual stiffness change provided by the rigid-flexible transition section 42 creates a smooth curve for the contact wire's rise. This stable transition effectively prevents abrupt changes in the pantograph's vertical acceleration, completely eliminating hard spots. This allows the pantograph slide to smoothly slide from one side of the contact wire 300 onto the connection 51 of the conductive plate 5 fixed to the horizontal beam 4. Because the symmetrical portions 52 of the two conductive plates 5 maintain a distance greater than 330mm, and the overlapping length of the projections of the two symmetrical portions 52 in the second direction is also greater than 330mm, the pantograph slide will not experience hard spots due to breaks in the overlapping area formed by the symmetrical portions 52, thus avoiding impact on the pantograph, nor will it experience arc discharge due to breaks. Furthermore, because the distance between the symmetrical portions 52 of the two conductive plates 5 is greater than 330mm, this air gap constitutes a physical isolation barrier, fundamentally eliminating the possibility of carbon powder forming a conductive bridge between the two conductive plates 5. Meanwhile, the insulation support system, consisting of the first suspension insulator 1 and the suspension insulation assembly 3, provides highly reliable, anti-pollution flashover, and anti-aging electrical isolation protection, further reducing the safety hazard of high voltage intrusion during maintenance operations.

[0050] In this embodiment, the conductive plate 5 is made of aluminum alloy.

[0051] Specifically, such as Figure 1 and Figure 2 As shown, the first suspension insulator 1 is rotatably connected to the maintenance depot's crossbeam 100, the vertical beam 2 is rotatably connected to the first suspension insulator 1 and the contact wire support cable 200, and the suspension insulation assembly 3 is rotatably connected to the two vertical beams 2. When the contact network system experiences longitudinal displacement due to temperature changes, the rotatable connection between the first suspension insulator 1 and the maintenance depot's crossbeam 100 allows the contact network segment insulator to swing freely in the longitudinal plane; the rotatable connection between the vertical beam 2 and the first suspension insulator 1 and the contact wire support cable 200 provides additional rotational freedom; and the rotatable connection between the suspension insulation assembly 3 and the two vertical beams 2 ensures that the system maintains geometric stability under stress. This multi-rotational connection design ensures that important components such as the horizontal beam 4 and the conductive plate 5 will not deform or displace due to temperature stress. This improves the service life and operational reliability of the contact network segment insulators used in the maintenance depot.

[0052] In this embodiment, the rotational connections between all components are achieved using a standardized structure of a single lug plate, double lug plates, and a pin. For example, the lower end of the first suspension insulator 1 is provided with a single lug plate, and the upper end of the vertical beam 2 is correspondingly provided with a double lug plate. The single lug plate is precisely inserted between the two plates of the double lug plate and connected by a pin, forming a hinged joint that can rotate freely around the center line of the pin.

[0053] Specifically, such as Figure 2 As shown, the suspension insulation assembly 3 includes a second suspension insulator 31, an adjusting screw 32, and two locking nuts 33. One end of the second suspension insulator 31 is connected to one of the vertical beams 2, and the other end is connected to the adjusting screw 32. The adjusting screw 32 passes through the other vertical beam 2. The two locking nuts 33 are respectively located on both sides of the vertical beam 2 and are threadedly connected to the adjusting screw 32. By rotating the locking nuts 33, the extension length of the adjusting screw 32 relative to the vertical beam 2 can be precisely changed, thereby adjusting the distance between the two vertical beams 2, and thus precisely adjusting the spatial orientation of the conductive plate 5 fixed at the end of the vertical beam 2, ensuring that its bottom surface is strictly on the same horizontal plane as the bottom surface of the contact wire 300, preventing the generation of hard points, and laying the basic geometric conditions for the smooth transition of the pantograph.

[0054] In this embodiment, one end of the second suspension insulator 31 is rotatably connected to the vertical beam 2, and the other end is rotatably connected to the adjusting screw 32.

[0055] Specifically, the contact wire segment insulator used in the maintenance depot includes two suspended insulation components 3, which are spaced apart vertically. By independently and precisely adjusting the locking nut 33 on the adjusting screw 32 in each suspended insulation component 3, not only is precise control of the distance between the two vertical beams 2 achieved, but also the horizontal beam 4 and the conductive plate 5 assembly maintain an ideal spatial orientation under stress conditions. This further improves the long-term coplanar relationship between the bottom surface of the conductive plate 5 and the bottom surface of the contact wire 300, providing a more stable and reliable sliding track for the pantograph.

[0056] Specifically, such as Figure 1 and Figure 2 As shown, the contact wire sectional insulator used in the maintenance depot also includes a post insulator 6, which is located between two vertical beams 2 and detachably connected to them. The post insulator 6 enhances the rigidity of the entire sectional insulator, suppresses structural vibrations that may be caused by the pantograph passing or external disturbances, and ensures the stability of the relative position between the conductive plate 5 and the contact wire 300. Simultaneously, the post insulator 6 adds a reliable isolation barrier between the two vertical beams 2, providing additional safety for personnel working on the top. Furthermore, its detachable connection design facilitates routine maintenance and component replacement.

[0057] In this embodiment, the post insulator 6 is located between two suspension insulation components 3.

[0058] More specifically, each end of the post insulator 6 is provided with a connector 61, and each of the two vertical beams 2 has a connecting seat 7 on its facing side. The connector 61 has a first connecting hole, and the connecting seat 7 has a second connecting hole. The first connecting hole can be coaxially aligned with the second connecting hole, and the connector 61 and the connecting seat 7 are connected by a connecting piece 8. The cooperation between the connector 61 and the connecting seat 7, and the detachable connection achieved by the connecting piece 8, makes the disassembly and assembly of the post insulator 6 quick and easy, and maintenance personnel can complete the replacement work without special tools.

[0059] In this embodiment, the connector 8 is a bolt and nut. When the connectors 61 at both ends of the post insulator 6 mate with the connectors 7 on the vertical beam 2, and the first connecting hole and the second connecting hole are coaxially aligned, the bolt passes through the aligned hole and is then tightened with the nut.

[0060] Specifically, such as Figure 2As shown, the contact wire segment insulator used in the maintenance depot also includes two adjusting components 9. Two first suspension insulators 1 are connected one-to-one to the two adjusting components 9. Each adjusting component 9 includes a sleeve 91 and two threaded rods 92. The two threaded rods 92 are screwed into the sleeve 91 from both ends. One threaded rod 92 is connected to the maintenance depot crossbeam 100, and the other threaded rod 92 is connected to the first suspension insulator 1. By rotating the sleeve 91, the screw-in depth of the threaded rods 92 at both ends can be changed simultaneously, thereby precisely controlling the installation height of the first suspension insulator 1 relative to the maintenance depot crossbeam 100 to meet the requirements of different installation heights.

[0061] Specifically, such as Figures 1-4 As shown, the horizontal beam 4 is an H-beam, which is cut to form an installation section 41 and a rigid-flexible transition section 42. By controlling the cutting depth, angle, and gradient curve of the web and flanges of the H-beam, a gradual transition from the complete cross-section of the installation section 41 to the gradual cross-section of the rigid-flexible transition section 42 is achieved. This allows the horizontal beam 4 to achieve a smooth change in stiffness according to design requirements, ensuring a smooth transition when the pantograph passes and completely eliminating hard spots.

[0062] Specifically, the contact wire segment insulator used in the maintenance depot also includes multiple clamps 10. These clamps 10 are distributed on the mounting section 41 and the rigid-flexible transition section 42 of the two horizontal beams 4, and are used to clamp and fix the contact wire 300. The multiple clamps 10 are rationally distributed along the mounting section 41 and the rigid-flexible transition section 42, forming multi-point fixed support for the contact wire 300, ensuring uniform tension distribution on the contact wire 300. Furthermore, each clamp 10 can independently adjust and fix the contact wire 300, ensuring that the bottom surface of the contact wire 300 and the bottom surface of the conductive plate 5 are strictly kept on the same plane.

[0063] Specifically, the first suspension insulator 1 is made of silicone rubber composite material. Silicone rubber material has good weather resistance, UV resistance and corrosion resistance, and can adapt to the complex environment inside the maintenance depot, such as temperature changes, oil mist, and metal dust, for a long time, effectively delaying the material aging process and ensuring the long-term stability of insulation performance.

[0064] In this embodiment, the first suspension insulator 1, the second suspension insulator 31, and the post insulator 6 all use mature 25kV silicone rubber composite insulators. Therefore, the contact network segment insulator used in the maintenance depot has extremely high insulation reliability performance, with a power frequency wet withstand voltage of 130kV (RMS) and a standard lightning impulse withstand voltage of 165kV (peak value).

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A contact wire sectional insulator used in a maintenance depot, characterized in that, include: Two first suspension insulators (1) are spaced apart along the first direction, with one end connected to the crossbeam (100) of the maintenance depot and the other end extending along the vertical direction; Two vertical beams (2) are connected to two contact wires (200) one by one on their sidewalls. One end of each of the two vertical beams (2) is connected to one of the two first suspension insulators (1) one by one along the length direction, and the other end extends along the vertical direction. Suspension insulation assembly (3) connects the two vertical beams (2) along the first direction; Two horizontal beams (4) are symmetrically arranged along the first direction. Each horizontal beam (4) includes a connected mounting section (41) and a rigid-flexible transition section (42). The two mounting sections (41) are connected one-to-one to the ends of the two vertical beams (2) away from the first suspension insulator (1). The two rigid-flexible transition sections (42) extend along the first direction away from each other. Two contact wires (300) are fixed one-to-one to the mounting section (41) and the rigid-flexible transition section (42) of the two horizontal beams (4). Two conductive plates (5) are disposed on opposite sides of the two horizontal beams (4) along a second direction, and the bottom surface of the conductive plate (5) and the bottom surface of the contact wire (300) are located on the same plane. The second direction is perpendicular to the first direction. The conductive plate (5) includes a connecting part (51) and a symmetrical part (52) connected to each other. The connecting part (51) is connected to the mounting section (41). The two symmetrical parts (52) extend toward each other along the first direction. The distance between the two symmetrical parts (52) is greater than 330 mm. The overlap length of the projection of the two connecting parts (51) along the second direction is greater than 330 mm.

2. The contact wire segment insulator for use in a maintenance depot according to claim 1, characterized in that, The contact wire segment insulator used in the maintenance depot also includes a post insulator (6), which is located between the two vertical beams (2) and is detachably connected to the two vertical beams (2).

3. The contact wire segment insulator for use in a maintenance depot according to claim 2, characterized in that, Both ends of the post insulator (6) are provided with connectors (61), and both sides of the two vertical beams (2) are provided with connecting seats (7). The connectors (61) are provided with a first connecting hole, and the connecting seats (7) are provided with a second connecting hole. The first connecting hole can be coaxially aligned with the second connecting hole, and the connectors (61) and the connecting seats (7) are connected by a connecting piece (8).

4. The contact wire segment insulator for use in a maintenance depot according to claim 1, characterized in that, The contact wire segment insulator used in the maintenance depot also includes two adjustment components (9). The two first suspension insulators (1) are connected to the two adjustment components (9) in a one-to-one correspondence. The adjustment component (9) includes a sleeve (91) and two threaded rods (92). The two threaded rods (92) are screwed into the sleeve (91) from both ends respectively. One of the threaded rods (92) is connected to the maintenance depot crossbeam (100), and the other threaded rod (92) is connected to the first suspension insulator (1).

5. The contact wire segment insulator for use in a maintenance depot according to claim 1, characterized in that, The suspension insulation assembly (3) includes a second suspension insulator (31), an adjusting screw (32), and two locking nuts (33). One end of the second suspension insulator (31) is connected to one of the vertical beams (2), and the other end is connected to the adjusting screw (32). The adjusting screw (32) passes through the other vertical beam (2), and the two locking nuts (33) are respectively located on both sides of the vertical beam (2) and threadedly connected to the adjusting screw (32).

6. The contact wire segment insulator for use in a maintenance depot according to claim 1, characterized in that, The first suspension insulator (1) is rotatably connected to the maintenance depot crossbeam (100), the vertical beam (2) is rotatably connected to the first suspension insulator (1) and the contact wire support cable (200), and the suspension insulation assembly (3) is rotatably connected to the two vertical beams (2).

7. The contact wire segment insulator for use in a maintenance depot according to any one of claims 1-6, characterized in that, The contact wire segment insulator used in the maintenance depot includes two suspension insulation components (3), which are spaced apart in the vertical direction.

8. The contact wire sectional insulator for use in a maintenance depot according to any one of claims 1-6, characterized in that, The horizontal beam (4) is an H-beam, which is cut to form the installation section (41) and the rigid-flexible transition section (42).

9. The contact wire segment insulator for use in a maintenance depot according to any one of claims 1-6, characterized in that, The contact wire segment insulator used in the maintenance depot also includes multiple clamps (10), which are respectively disposed on the mounting section (41) and the rigid-flexible transition section (42) of the two horizontal beams (4) for clamping and fixing the contact wire (300).

10. The contact wire segment insulator for use in a maintenance depot according to any one of claims 1-6, characterized in that, The first suspension insulator (1) is made of silicone rubber composite material.

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