A guard device and a catenary isolating switch comprising the same

Abstract

This application discloses a protective device for contact network disconnect switches and a disconnect switch incorporating the device, aiming to solve the problem of birds building nests on the base channel steel and transmission components. The protective device includes a smooth plate, which may be integrally formed or a combination of multiple unit plates. The plate has several through holes for the contact network disconnect switch insulator base and / or rotating support components to pass through. This device effectively prevents birds from building nests on the disconnect switch base and transmission components, reducing the risk of tripping and improving equipment operational reliability. It is suitable for bird-proofing retrofitting of newly built and existing contact network disconnect switches.

Description

Technical Field

[0001] This application belongs to the field of bird nest prevention and control of overhead contact line electrical equipment, specifically involving a protective device and an overhead contact line disconnect switch including the protective device. Background Technology

[0002] Existing bird-repelling measures for overhead contact line disconnectors include odor repellents, ultrasonic bird repellents, bird spikes, and sound and light bird repellents. Odor repellents use a chemical odorant that birds like magpies dislike, placed at the bottom of the disconnector to repel birds. However, this method has drawbacks such as the disconnector being outdoors, low odor concentration, and the influence of wind direction in northwest regions, resulting in a short effective period and the development of bird tolerance. Ultrasonic and sound and light bird repellents use sound and light interference principles to repel birds. They consist of a sound-generating device, a battery, and a solar panel. However, they have disadvantages such as using infrared triggers, small bird size, uncertain flight and landing locations that may trigger the infrared switch, prolonged triggering, insufficient power during cloudy or rainy weather or at night, birds developing desensitization to sound, and initial delays in nest building, leading to poor subsequent effectiveness. Bird spikes are used by fixing steel spikes to the base of the disconnector. However, after birds build nests on a few branches, the spikes can act as support points for the branches, providing a convenient place for nest building. Furthermore, the metal protrusions can easily cause the overhead contact line equipment to trip when birds spread their wings.

[0003] Bird control measures for disconnecting switches include the management of the base channel steel and related transmission components, as well as the management of the upper conductive parts. This application mainly addresses the management of the base channel steel and related transmission components. Utility Model Content

[0004] Technical Problem: Bird control for disconnecting switches includes controlling the channel steel of the disconnecting switch base and related transmission components, as well as controlling the upper conductive part. This application mainly addresses the control of the channel steel of the base and related transmission components. To solve this technical problem, this application provides a new technical solution, as follows:

[0005] Technical Solution: To solve this technical problem, this application provides a new technical solution, as follows:

[0006] A protective device includes a smooth plate, where "smooth" means having a certain degree of hardness, suitable for outdoor climatic conditions, and its surface has no holes or protrusions for inserting or attaching branches needed for bird nests, except for the required artificial openings. The plate is integrally formed or a combination of multiple unit plates, wherein the unit plates may be the same or different sizes; the plate has several through holes for the contact wire disconnecting switch insulator base and / or rotating support to pass through.

[0007] The one-piece molded panel is suitable for use in both of the above situations.

[0008] 1. After the integral plate is formed, the hole is opened. This protective device needs to be installed before assembling the insulator and rotating support of the disconnect switch;

[0009] 2. Since the plate needs to use high-voltage insulation materials, it is necessary to select an integral molding method based on the processing of the plate material being able to be integrally molded.

[0010] Combining and splicing multiple unit panels is suitable for any of the following situations.

[0011] 1. When installing protective devices on disconnect switches that have already been assembled and put into use, the insulators are no longer easy to disassemble. Therefore, a semi-circular end face is set on the splicing end face, and a through hole is formed after splicing to allow the fixed insulator base to pass through.

[0012] 2. The material properties of the plate do not provide a basis for bending processes. Therefore, it is necessary to set protrusions for splicing or to set protrusions for use with disconnect switches that are already in use.

[0013] Furthermore, a protrusion is provided in the middle of the panel. The panel covers the bottom of the disconnect switch. Since the disconnect switch is horizontally set, the protrusion can play a certain role in drainage and can also greatly reduce the possibility of birds building nests.

[0014] Furthermore, the protrusion is a V-shaped protrusion, which is suitable when the sheet material lacks the ability to form a plastic shape. The V-shaped protrusion is formed by cutting and splicing the corner at the end face.

[0015] Furthermore, the panel is composed of several unit panels spliced ​​together sequentially, with through holes at the seams for the insulator base to pass through. As mentioned above, this configuration is suitable for adding protection to disconnecting switches already in use.

[0016] Furthermore, the base plate is composed of 3-12 unit plates spliced ​​together, with insulator base mounting holes provided at the joints. The unit plates corresponding to the rotating support are also provided with through holes for the rotating support to pass through. The rotating support is detachable from the fixed insulator, so holes can be directly drilled. In applications where disassembly is difficult, through holes or slots can be cut off on both sides of the mounting half. It should be noted that the rotation path of the rotating arm of the disconnecting switch is fan-shaped, so it is advisable to open through slots.

[0017] Furthermore, the joints on at least one side of the mounting hole are connected by bolts using an overlap plate. Since the mounting hole faces discontinuities due to adhesive bonding or other connection processes, an overlap plate-bolt connection can be used for more reliable connection. Specifically, connection holes are made on both sides of the joint within the covering surface of the overlap plate, and corresponding mating holes are made on the overlap plate. The plates on both sides of the joint are connected to the two sides of the overlap plate with bolts. If necessary, double nuts can be used for tightening. Round cap bolts are used for the overlap bolts to increase smoothness.

[0018] Furthermore, overlapping plates are symmetrically installed on both sides of the mounting hole and connected with bolts. Hanging ropes are attached to the bolts on both sides, and these ropes are looped around the mounting bracket of the contact wire disconnect switch for secure binding.

[0019] Furthermore, the plate is made of insulating material.

[0020] This application also provides a contact wire disconnector switch, which is equipped with the aforementioned protective device, which is used for bird protection of the base of the contact wire disconnector switch.

[0021] The disconnecting switch includes fixed insulators on both sides and a supporting insulator in the middle. The supporting insulator is used to support the strip contact at the top of the fixed insulator hinged to one side, and a rotating arm is hinged to the bottom of the supporting insulator.

[0022] Mounting holes are made at the base of the fixed insulator on both sides, and are set at the rotating part of the rotating arm through the holes.

[0023] The beneficial effects of this application are as follows:

[0024] 1. The smooth board design is free of holes, and the V-shaped protrusions further prevent birds from building nests, significantly reducing the risk of power outages caused by bird nests.

[0025] 2. Supports one-piece molding and splicing of multiple unit boards, suitable for newly built and already in use disconnect switches, and the semi-circular hole splicing forms a through hole for easy installation.

[0026] 3. The joints are connected with bolts using overlapping plates and secured with hanging ropes to improve structural stability and durability.

[0027] 4. The V-shaped protrusion design facilitates drainage and adapts to harsh outdoor weather conditions.

[0028] 5. High-voltage insulation materials are used to ensure electrical safety and are suitable for overhead contact line environments.

[0029] 6. Modular design facilitates installation and maintenance, reduces modification costs, and improves equipment operational reliability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of Embodiment 1 of this application;

[0031] Figure 2 This is a front view of Embodiment 2 of this application;

[0032] Figure 3 This is a side view and a partial enlarged view of Embodiment 2 of this application;

[0033] Figure 4 This is a three-dimensional schematic diagram of Embodiment 2 of this application;

[0034] Figure 5 This is a schematic diagram of the lap joint connection in Embodiment 2 of this application;

[0035] Figure 6 This is a schematic diagram of the disconnecting switch section and the connection diagram of the channel steel mounting frame in Embodiment 3 of this application. The diagram shows the disconnected state.

[0036] Figure 7 This is a front view schematic diagram of Embodiment 3 of this application;

[0037] Figure 8 for Figure 7 The left view;

[0038] Figure 9 This is a perspective view of Embodiment 3 of this application;

[0039] Figure 10 This is a schematic diagram of the rotating arm extending through a through hole (slot) after the switch is turned off in Embodiment 3 of this application;

[0040] Figure 11 This is a schematic diagram of Embodiment 4 of this application.

[0041] In the diagram: 1. Unit plate; 2. Mounting hole; 3. Fixed insulator #1; 4. Fixed insulator #2; 5. Fixed insulator #3; 6. Fixed insulator #4; 7. Through slot; 8. Lap plate; 9. Bolt; 10. Support channel steel; 11. Mounting base; 12. Rotating shaft; 13. Rotating arm; 14. Support insulator; 15. Contact; 16. Reinforcing cable; 17. Contact head. Detailed Implementation

[0042] Example 1:

[0043] A protective device, such as Figure 1 As shown, the protective device is made up of three bendable insulating unit boards 1 spliced ​​together. The three unit boards 1 are board a, board b and board c. All three unit boards 1 are provided with V-shaped protrusions. The middle board b is longer than the two side boards a and c.

[0044] The splicing end faces on both sides of the V-shaped protrusion of the a / c plate have semi-circular notches in the middle of the flat plate surface. The corresponding semi-circular notches are also made on the corresponding positions on both sides of the b plate. After splicing, four mounting holes 2 are formed for the roots of the disconnecting switch insulators to pass through.

[0045] Example 2:

[0046] like Figure 2-5 As shown, a protective device is provided. In this embodiment, the unit plate 1 is made of non-bendable epoxy resin material. In order to install it at the root of the insulator / set the middle protrusion, a total of 12 unit plates 1 (d-o plates) are used in this embodiment.

[0047] Reference Figure 2 The plates are spliced ​​in the order of d plate → o plate, 4 (rows) × 3 (columns). Semicircular cuts are made at corresponding positions on the right end face of d plate and m plate; both end faces of e plate and n plate; and the left end face of f plate and o plate. After splicing, mounting holes 2 for fixed insulator 1# 3, fixed insulator 2# 4, fixed insulator 3# 5, and fixed insulator 4# 6 are formed. Through slots 7 are opened in the middle of e plate and n plate. The purpose of through slots 7 will be explained more intuitively below.

[0048] Reference Figure 3 To create the V-shaped protrusion in the middle, chamfers need to be set on the top and bottom sides of the second and third row unit plates 1, the bottom side of the first row unit plate 1, and the top of the fourth row unit plate 1. See the diagram for chamfer locations and example angles. Figure 3 A magnified view of a portion of the image.

[0049] Reference Figure 4 For example, the upper and lower sides of the mounting hole 2 on plate d and plate e are connected by overlapping plate 8 and bolt 9, and bolt 9 is a round cap bolt 9;

[0050] Reference Figure 5 The overlapping plate 8 is long and narrow, with assembly holes on both sides, and is connected to the corresponding connection holes on the unit plates 1 on both sides of the overlap by bolts 9.

[0051] Example 3:

[0052] A disconnect switch equipped with a protective device,

[0053] like Figure 6-10 As shown, this embodiment only describes the structure of the installation point where the disconnecting switch is mounted against the bottom channel steel. Therefore, Figure 6 The diagram only shows a partial structure of the disconnector and a brief schematic of its connection with the support channel steel 10;

[0054] Reference Figure 6 The disconnecting switch described in this embodiment includes two support channel steels 10 located at the bottom, and two insulator mounting seats 11 disposed on the channel steels. The mounting seats 11 are long, straight, rectangular plates with connecting plates extending from both sides to connect with the support channel steels 10.

[0055] Two mounting bases 11 are respectively provided with a #1 fixed insulator 3, a #3 fixed insulator 5, a #2 fixed insulator 4, and a #4 fixed insulator 6 on their front and rear sides. A through hole is provided on the left side wall of the mounting base 11, and a rotating shaft 12 is provided in the through hole. Two rotating arms 13 are radially provided below the two mounting bases 11. The end of each rotating arm 13 is hinged to the lower end of a support insulator 14. The upper end of the support insulator 14 is hinged to the middle left side of a contact 17. The left ends of the two contacts are respectively hinged to the #1 fixed insulator 3 and the #2 fixed insulator 4. The corresponding contact points 15 are provided on the opposite #3 fixed insulator 5 and the #4 fixed insulator 6.

[0056] The drive arm in the middle of the shaft is connected to the drive rod to drive the shaft to rotate, which in turn drives the support rotating arm 13 to control the opening and closing of the disconnect switch.

[0057] Reference Figure 7-9 The diagram shows the closed state of the disconnecting switch. The protective device is installed at the base of the insulator and covers the bottom of the disconnecting switch.

[0058] Reference Figure 10 The diagram shows the disconnected state of the switch. At this time, the rotating arm 13 rotates upward to drive the supporting insulator 14, so it needs to pass through the through slot 7 opened on the corresponding unit plate 1.

[0059] Example 4:

[0060] A disconnect switch equipped with a protective device,

[0061] Reference Figure 11 The structure of Embodiment 4 is largely the same as that of Embodiment 3. Compared with Embodiment 3, a reinforcing cable 16 is added to the protective device and tied to the support channel steel 10. In this embodiment, the two ends of the reinforcing cable 16 are respectively connected to the bolts 9 of the protective device. The figure shows an example of a cross-wound cable. Those skilled in the art can also perform multiple composite cross-wounds, straight (connecting the two ends of the reinforcing cable 16 to the bolts 9 on both sides of the same overlapping plate 8, and bypassing the support channel steel 10 below) single / composite cross-wounds.

Claims

1. A protective device comprising a smooth plate, characterized in that, The plate is integrally formed or a combination of multiple unit plates (1); The plate has several through holes for the contact wire disconnector switch insulator base and / or rotating support to pass through.

2. The protective device as described in claim 1, characterized in that, A protrusion is provided in the middle of the plate.

3. A protective device as described in claim 2, characterized in that, The protrusion is a V-shaped protrusion.

4. A protective device as described in claim 3, characterized in that, The plate is composed of several unit plates (1) spliced ​​together in sequence, and through holes for the insulator base to pass through are provided at the splice joints.

5. A protective device as described in claim 4, characterized in that, The plate is assembled from 3-24 unit plates (1), and an insulator base mounting hole (2) is provided at the joint. The unit plate (1) at the corresponding position of the rotating support is also provided with a through hole for the rotating support to pass through.

6. A protective device as described in claim 5, characterized in that, The joint on at least one side of the mounting hole (2) is connected by bolts (9) through the overlapping plate (8).

7. A protective device as described in claim 6, characterized in that, The mounting hole (2) has symmetrically arranged overlapping plates (8) on both sides and connected by bolts (9). The bolts (9) on both sides are provided with hanging ropes, which are routed around the mounting bracket of the contact wire disconnect switch.

8. A protective device as described in claim 7, characterized in that, The plate is made of insulating material.

9. A contact wire disconnector switch, characterized in that, The disconnecting switch is equipped with the protective device as described in claim 8, which is used for bird protection of the base of the contact wire disconnecting switch.

10. A contact wire disconnector as described in claim 9, characterized in that, The disconnecting switch includes fixed insulators on both sides and a supporting insulator (14) in the middle, with a rotating arm (13) hinged to the bottom of the supporting insulator (14). The mounting holes (2) are opened at the base of the fixed insulators on both sides, and the through holes are set at the rotation point of the rotating arm (13).

Images