Electrical high-voltage cabinet shielding curtain plate

Abstract

The utility model belongs to electrical high pressure cabinet shielding curtain board in the technical field of electrical high pressure cabinet. Including installation lever (1), shielding curtain board (2) activity is installed on installation lever (1), shielding curtain board (2) side surface installs movable hinge (3) one end, movable hinge (3) includes first movable joint (4) and second movable joint (5), movable hinge (3) other end sets up push rod (6). Electrical high pressure cabinet shielding curtain board can reliably realize push control, realizes opening when circuit breaker trolley pushes in, satisfies circuit breaker trolley moving contact and electrical high pressure cabinet inside static contact cooperation, realizes closing after circuit breaker trolley pushes out, avoids dust invasion live part.

Description

Technical Field

[0001] This utility model belongs to the field of electrical high-voltage switchgear technology, and more specifically, it relates to an electrical high-voltage switchgear shielding curtain. Background Technology

[0002] The electrical high-voltage switchgear contains live components to meet its operational requirements. During operation, a circuit breaker trolley needs to be pushed in, and the moving contacts of the trolley cooperate with the stationary contacts inside the switchgear to achieve the desired operation. After the trolley is pushed out, the live components inside the switchgear are exposed and susceptible to dust intrusion.

[0003] Existing technology includes a "High-Voltage Switchgear Moving and Stationary Contact Curtain Door Opening and Closing Mechanism" with publication (announcement) number "CN104993411A". This technology relates to a high-voltage switchgear moving and stationary contact curtain door opening and closing mechanism used in high-voltage power transmission and distribution control facilities. A pushing mechanism is installed inside the switchgear cabinet to drive the trolley forward and backward. A push plate is installed on the left side of the front end of the circuit breaker trolley. A transmission mechanism consisting of a toggle plate assembly, a transmission plate, a slotted plate, an eccentric plate assembly, and several sets of sprocket transmission mechanisms is installed on the left side of the cabinet. A stationary contact cover is installed at the rear of the cabinet. When the circuit breaker trolley is pushed forward by the pushing mechanism, the toggle plate assembly, transmission plate, slotted plate, eccentric plate assembly, and several sets of sprocket transmission mechanisms transmit motion force to each other, causing the upper and lower curtain door assemblies to open synchronously in the upward and downward directions, respectively. After the curtain door opens, the transmission trolley continues to move forward, while the transmission mechanism remains stationary.

[0004] However, this technology does not address the technical issues and solutions of this application. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a simple structure that can reliably realize push control, open when the circuit breaker trolley is pushed in, satisfy the coordination between the moving contact of the circuit breaker trolley and the stationary contact in the electrical high-voltage cabinet, and close after the circuit breaker trolley is pushed out, so as to prevent dust from entering the shielding curtain of the electrical high-voltage cabinet of the live parts.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model relates to a shielding curtain for an electrical high-voltage switchgear, comprising a mounting rod, a shielding curtain movably mounted on the mounting rod, a movable hinge mounted on one side of the shielding curtain, the movable hinge comprising a first movable joint and a second movable joint, and a push rod provided at the other end of the movable hinge.

[0007] The upper and lower ends of the mounting rod are connected to the inside of the electrical high-voltage cabinet via connecting seats, and live components are installed at the rear of the electrical high-voltage cabinet.

[0008] The mounting rods include a left mounting rod and a right mounting rod. The left side of the blind curtain is movably fitted onto the left mounting rod, and the right side of the blind curtain is movably fitted onto the right mounting rod.

[0009] The movable hinge includes a left movable hinge and a right movable hinge. The left side of the curtain panel is connected to one end of the first movable joint of the left movable hinge, and the other end of the first movable joint is movably connected to one end of the second movable joint of the left movable hinge. A push rod is provided at the other end of the second movable joint.

[0010] The right side of the blind panel is connected to one end of the first movable joint of the right movable hinge, and the other end of the first movable joint is movably connected to one end of the second movable joint of the right movable hinge.

[0011] The second movable joint is provided with a positioning hole near the push rod, the inner wall of the electrical high voltage cabinet is provided with a positioning post hole, and the electrical high voltage cabinet shielding curtain also includes a positioning pin.

[0012] The left side of the shielding panel is movably connected to one end of the first movable joint of the left movable hinge via a connecting pin. The other end of the first movable joint is movably connected to one end of the second movable joint of the left movable hinge via a connecting pin. The other end of the push rod passes through the part of the second movable joint and is movably locked in the horizontal groove on the inner wall of the electrical high voltage cabinet.

[0013] The right side of the shielding curtain is movably mounted with one end of the first movable joint of the right movable hinge via a connecting pin. The other end of the first movable joint is movably connected to one end of the second movable joint of the right movable hinge via a connecting pin. The other end of the push rod passes through the part of the second movable joint and is movably locked in the horizontal groove on the inner wall of the electrical high voltage cabinet.

[0014] The left and right mounting rods are fitted with multiple blind curtains at gaps. The left side of each blind curtain is connected to one end of the first movable joint of the corresponding left movable hinge, and the other end of the first movable joint of the corresponding left movable hinge is movably connected to one end of the second movable joint of the left movable hinge. A push rod is provided at the other end of the second movable joint. The right side of each blind curtain is connected to one end of the first movable joint of the corresponding right movable hinge, and the other end of the first movable joint is movably connected to one end of the second movable joint of the right movable hinge.

[0015] The working principle and beneficial effects of this utility model are as follows: The electrical high-voltage switchgear shielding curtain of this utility model is structurally designed as follows: A shielding curtain is installed inside the electrical high-voltage switchgear. Two mounting rods are vertically installed inside the switchgear and arranged near the rear. Each mounting rod is positioned close to a corresponding side panel of the switchgear. The shielding curtain is movably fitted onto the mounting rods, thus constraining the curtain and allowing it to slide up and down along the direction of the mounting rods. To control the raising (opening) and lowering (closing) of the shielding curtain, a movable hinge is installed on the side of the curtain, connecting the curtain and a push rod. When the circuit breaker trolley is pushed into the high-voltage electrical cabinet, the trolley applies force to the push rod, causing it to move. This movement of the push rod, in turn, changes the angles of the first and second movable joints of the movable hinge. Specifically, the second movable joint pushes the shielding curtain upwards along the mounting rod, exposing the live parts of the high-voltage electrical cabinet and facilitating the engagement of the moving contacts of the circuit breaker trolley with the stationary contacts of the live parts. Conversely, when the circuit breaker trolley is pushed out of the high-voltage electrical cabinet, the external force applied to the push rod disappears. Under the weight of the shielding curtain, it changes the angles of the first and second movable joints of the movable hinge, causing the shielding curtain to move downwards along the mounting rod. This shielding curtain protects the live parts of the high-voltage electrical cabinet, effectively preventing dust from entering them. Attached Figure Description

[0016] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein: Figure 1 This is a schematic diagram of the structure of the shielding curtain plate of the electrical high-voltage cabinet described in this utility model; Figure 2 This is a partial structural schematic diagram of the shielding curtain plate of the electrical high-voltage cabinet described in this utility model; Figure 3 This is a partial structural schematic diagram of the shielding curtain plate of the electrical high-voltage cabinet described in this utility model; The labels in the attached diagram are as follows: 1. Mounting rod; 2. Shelter curtain; 3. Movable hinge; 4. First movable joint; 5. Second movable joint; 6. Push rod; 7. Left mounting rod; 8. Right mounting rod; 9. Left movable hinge; 10. Right movable hinge; 11. Positioning hole; 12. Positioning post hole; 13. Positioning pin; 14. Electrical high-voltage cabinet; 15. Horizontal groove. Detailed Implementation

[0017] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part: As attached Figure 1 -Appendix Figure 3 As shown, this utility model is a shielding curtain for an electrical high-voltage switchgear, including a mounting rod 1, a shielding curtain 2 movably mounted on the mounting rod 1, and a movable hinge 3 mounted on one side of the shielding curtain 2. The movable hinge 3 includes a first movable joint 4 and a second movable joint 5, and a push rod 6 is provided at the other end of the movable hinge 3. The upper and lower ends of the mounting rod 1 are respectively connected to the interior of the electrical high-voltage switchgear 14 via connecting seats. Live components are located at the rear of the electrical high-voltage switchgear 14. This structure addresses the shortcomings of the prior art and proposes an improved technical solution. In the structural design, an electrical high-voltage cabinet shielding curtain 2 is installed inside the electrical high-voltage cabinet. Mounting rods 1 are vertically installed inside the electrical high-voltage cabinet, positioned near the rear of the cabinet. Two mounting rods 1 are symmetrically arranged inside the electrical high-voltage cabinet, each close to a corresponding side panel. The shielding curtain 2 is movably fitted onto the mounting rods 1, thus constraining the curtain 2. The curtain 2 can slide up and down along the direction of the mounting rods 1. The shielding curtain 2 is located in front of the live components. To control the raising (opening) and lowering (closing) of the shielding curtain 2, a movable hinge 3 is installed on the side of the shielding curtain 2, connecting the curtain 2 and a push rod 6. When the circuit breaker trolley is pushed into the high-voltage electrical cabinet, the trolley applies force to the push rod 6, causing it to move. This movement of the push rod 6, in turn, changes the angle of the first movable joint 4 and the second movable joint 5 of the movable hinge 3. Specifically, the second movable joint 5 pushes the shielding curtain 2 upwards along the mounting rod 1, exposing the live parts of the high-voltage electrical cabinet and facilitating the engagement of the moving contacts of the circuit breaker trolley with the stationary contacts of the live parts. When the circuit breaker trolley is pushed out of the high-voltage electrical cabinet, the external force applied to the push rod 6 disappears. Under the weight of the shielding curtain 2, it changes the angle of the first movable joint 4 and the second movable joint 5 of the movable hinge 3, causing the shielding curtain 2 to move downwards along the mounting rod. This shielding curtain 2 protects the live parts of the high-voltage electrical cabinet, effectively preventing dust from entering them. The electrical high-voltage cabinet shielding curtain of this utility model has a simple structure and can reliably realize push control. It opens when the circuit breaker trolley is pushed in to meet the coordination between the moving contacts of the circuit breaker trolley and the stationary contacts in the electrical high-voltage cabinet. It closes after the circuit breaker trolley is pushed out to prevent dust from entering the live parts.

[0018] The mounting rod 1 includes a left mounting rod 7 and a right mounting rod 8. The left side of the blind curtain 2 is movably fitted onto the left mounting rod 7, and the right side of the blind curtain 2 is movably fitted onto the right mounting rod 8. In this structure, the left mounting rod 7 and the right mounting rod 8 are symmetrically arranged for reliably arranging the blind curtain 2, allowing the blind curtain 2 to be raised, lowered, and slid.

[0019] The movable hinge 3 includes a left movable hinge 9 and a right movable hinge 10. The left side of the blind curtain 2 is connected to one end of the first movable joint 4 of the left movable hinge 9, and the other end of the first movable joint 4 is movably connected to one end of the second movable joint 5 of the left movable hinge 9. A push rod 6 is provided at the other end of the second movable joint 5. The right side of the blind curtain 2 is connected to one end of the first movable joint 4 of the right movable hinge 10, and the other end of the first movable joint 4 is movably connected to one end of the second movable joint 5 of the right movable hinge 10. In this structure, corresponding movable hinges are installed on the outer side of the blind curtain corresponding to the rods on each side, transmitting force from both sides to the blind curtain for reliable control.

[0020] The second movable joint 5 is provided with a positioning hole 11 near the push rod 6, and the inner wall of the electrical high-voltage cabinet 14 is provided with positioning pin holes 12. The electrical high-voltage cabinet shielding curtain also includes positioning pins 13. With this structure, when maintenance of the electrical high-voltage cabinet is required, the positioning pins 13 can be inserted into the positioning pin holes 12 at different positions on the inner wall of the electrical high-voltage cabinet 14, thus reliably controlling the position of the shielding curtain 2. The shielding curtain 2 is positioned, facilitating the maintenance of the live components of the electrical high-voltage cabinet.

[0021] The left side of the shielding curtain 2 is movably connected to one end of the first movable joint 4 of the left movable hinge 9 via a connecting pin. The other end of the first movable joint 4 is movably connected to one end of the second movable joint 5 of the left movable hinge 9 via a connecting pin. The other end of the push rod 6 passes through the part of the second movable joint 5 and is movably engaged in the horizontal groove inside the electrical high-voltage cabinet. With the above structure, when the push rod moves, the push rod 6 can only slide horizontally along the position of the horizontal groove.

[0022] The right side of the shielding curtain 2 is movably mounted with one end of the first movable joint 4 of the right movable hinge 10 via a connecting pin. The other end of the first movable joint 4 is movably connected to one end of the second movable joint 5 of the right movable hinge 10 via a connecting pin. The other end of the push rod 6 passes through the part of the second movable joint 5 and is movably locked in the horizontal groove inside the electrical high-voltage cabinet. With the above structure, when the push rod moves, the push rod 6 can only slide horizontally along the position of the horizontal groove.

[0023] The left mounting rod 7 and the right mounting rod 8 are fitted with multiple blind curtain panels 2 at gaps. The left side of each blind curtain panel 2 is connected to one end of the first movable joint 4 of the corresponding left movable hinge 9, and the other end of the first movable joint 4 of the corresponding left movable hinge 9 is movably connected to one end of the second movable joint 5 of the left movable hinge 9. The other end of the second movable joint 5 is provided with a push rod 6. The right side of each blind curtain panel 2 is connected to one end of the first movable joint 4 of the corresponding right movable hinge 10, and the other end of the first movable joint 4 is movably connected to one end of the second movable joint 5 of the right movable hinge 10.

[0024] The electrical high-voltage switchgear shielding curtain of this utility model is structurally designed as follows: an electrical high-voltage switchgear shielding curtain 2 is installed inside the electrical high-voltage switchgear. Mounting rods 1 are vertically installed inside the electrical high-voltage switchgear and arranged near the rear of the switchgear. Two mounting rods 1 are symmetrically arranged inside the switchgear, each close to a corresponding side panel of the switchgear. The shielding curtain 2 is movably fitted onto the mounting rods 1, thus constraining the curtain 2 and allowing it to slide up and down along the direction of the mounting rods 1. To control the raising (opening) and lowering (closing) of the shielding curtain 2, a movable hinge 3 is installed on the side of the curtain 2, connecting the curtain 2 and a push rod 6. When the circuit breaker trolley is pushed into the high-voltage electrical cabinet, the trolley applies force to the push rod 6, causing it to move. This movement of the push rod 6, in turn, changes the angle of the first movable joint 4 and the second movable joint 5 of the movable hinge 3. Specifically, the second movable joint 5 pushes the shielding curtain 2 upwards along the mounting rod 1, exposing the live parts of the high-voltage electrical cabinet and facilitating the engagement of the moving contacts of the circuit breaker trolley with the stationary contacts of the live parts. When the circuit breaker trolley is pushed out of the high-voltage electrical cabinet, the external force applied to the push rod 6 disappears. Under the weight of the shielding curtain 2, it changes the angle of the first movable joint 4 and the second movable joint 5 of the movable hinge 3, causing the shielding curtain 2 to move downwards along the mounting rod. This shields the live parts of the high-voltage electrical cabinet, preventing dust from entering and thus effectively protecting them.

[0025] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A shielding curtain for an electrical high-voltage switchgear, characterized in that: The device includes a mounting rod (1), a curtain panel (2) that is movably mounted on the mounting rod (1), a movable hinge (3) that is mounted on the side of the curtain panel (2), the movable hinge (3) including a first movable joint (4) and a second movable joint (5), and a push rod (6) that is provided on the other end of the movable hinge (3).

2. The electrical high-voltage switchgear shielding curtain according to claim 1, characterized in that: The upper and lower ends of the mounting rod (1) are connected to the inside of the electrical high voltage cabinet (14) through connecting seats, and live parts are set at the rear of the electrical high voltage cabinet (14).

3. The electrical high-voltage switchgear shielding curtain according to claim 1 or 2, characterized in that: The mounting rod (1) includes a left mounting rod (7) and a right mounting rod (8). The left side of the curtain panel (2) is movably mounted on the left mounting rod (7), and the right side of the curtain panel (2) is movably mounted on the right mounting rod (8).

4. The electrical high-voltage switchgear shielding curtain according to claim 3, characterized in that: The movable hinge (3) includes a left movable hinge (9) and a right movable hinge (10). The left side of the curtain panel (2) is connected to one end of the first movable joint (4) of the left movable hinge (9). The other end of the first movable joint (4) is movably connected to one end of the second movable joint (5) of the left movable hinge (9). The other end of the second movable joint (5) is provided with a push rod (6).

5. The electrical high-voltage switchgear shielding curtain according to claim 4, characterized in that: The right side of the blind curtain (2) is connected to one end of the first movable joint (4) of the right movable hinge (10), and the other end of the first movable joint (4) is movably connected to one end of the second movable joint (5) of the right movable hinge (10).

6. The electrical high-voltage switchgear shielding curtain according to claim 1 or 2, characterized in that: The second movable joint (5) is provided with a positioning hole (11) near the push rod (6), the electrical high voltage cabinet (14) is provided with a positioning pin hole (12), and the electrical high voltage cabinet shielding curtain plate also includes a positioning pin (13).

7. The electrical high-voltage switchgear shielding curtain according to claim 4, characterized in that: The left side of the shielding curtain (2) is movably connected to one end of the first movable joint (4) of the left movable hinge (9) by a connecting pin. The other end of the first movable joint (4) is movably connected to one end of the second movable joint (5) of the left movable hinge (9) by a connecting pin. The other end of the push rod (6) passes through the part of the second movable joint (5) and is movably locked in the horizontal groove (15) on the inner wall of the electrical high voltage cabinet.

8. The electrical high-voltage switchgear shielding curtain according to claim 4, characterized in that: The right side of the shielding curtain (2) is movably installed with one end of the first movable joint (4) of the right movable hinge (10) via a connecting pin. The other end of the first movable joint (4) is movably connected with one end of the second movable joint (5) of the right movable hinge (10) via a connecting pin. The other end of the push rod (6) passes through the part of the second movable joint (5) and is movably locked in the horizontal groove (15) on the inner wall of the electrical high voltage cabinet.

9. The electrical high-voltage switchgear shielding curtain according to claim 4, characterized in that: The left mounting rod (7) and the right mounting rod (8) are equipped with multiple blind curtains (2) at the gaps. The left side of each blind curtain (2) is connected to one end of the first movable joint (4) of the corresponding left movable hinge (9). The other end of the first movable joint (4) of the corresponding left movable hinge (9) is movably connected to one end of the second movable joint (5) of the left movable hinge (9). The other end of the second movable joint (5) is provided with a push rod (6). The right side of each blind curtain (2) is connected to one end of the first movable joint (4) of the corresponding right movable hinge (10). The other end of the first movable joint (4) is movably connected to one end of the second movable joint (5) of the right movable hinge (10).

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