Anti-misoperation interlocking structure for high-voltage switch cabinet

Abstract

The utility model relates to the technical field of high-voltage switch cabinets, in particular to an anti-misoperation interlocking structure for a high-voltage switch cabinet, which comprises an anti-misoperation interlocking structure main body and the high-voltage switch cabinet. The anti-misoperation interlocking structure main body is provided with a door interlocking panel and a positioning seat which correspond to each other in position, the back surface of the door interlocking panel is provided with a lock body shell, the other side of the lock body shell is provided with a second cable protection part and a first cable protection part which are fixed with a cabinet door, and the lock body shell is internally provided with an electromagnetic control mechanism. The electromagnetic control mechanism is connected with a lock rod through an iron core, wherein the lock rod movably penetrates through the lock body shell. According to the anti-misoperation interlocking structure for the high-voltage switch cabinet, the lock body shell and the lock rod are subjected to high-strength protection treatment, moisture invasion can be avoided, the lock body shell is accurately positioned, the overall structural strength is guaranteed, and the anti-misoperation interlocking structure can be suitable for various complex environments.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage switchgear technology, specifically to an anti-misoperation interlocking structure for high-voltage switchgear. Background Technology

[0002] The anti-misoperation interlocking structure of high-voltage switchgear is designed to ensure the safe operation of the power system and prevent electrical accidents caused by human error. This anti-misoperation interlocking structure is implemented through mechanical and electrical interlocking methods to ensure that switchgear is operated only in the correct sequence. Interlocking mechanisms include door interlocks, interlocks between circuit breakers and disconnectors, grounding switch interlocks, and program locks. When certain components inside the high-voltage switchgear are energized or in operation, this interlocking mechanism will prevent the cabinet door from being opened, avoiding direct contact with energized parts.

[0003] With the development of the times, the existing anti-misoperation interlocking structure of high-voltage switchgear has introduced more intelligent sensors and controllers, realizing real-time monitoring and automatic control of the operation process and reducing human error. However, the intelligent interlocking structure has higher requirements for the operating environment. Environmental factors such as temperature, humidity, dust and other pollutants can interfere with the processing module, sensors and controllers. The housing part is connected to the locking rod, which will affect the smoothness of the locking rod movement and make it impossible to effectively protect the locking body part. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-misoperation interlocking structure for high-voltage switchgear, in order to solve the problem mentioned in the background art that the current intelligent interlocking structures on the market have higher requirements for the operating environment. Environmental factors such as temperature, humidity, dust and other pollutants can interfere with the processing module, sensor and controller. The housing part is connected to the locking rod, which affects the smoothness of the locking rod's movement and makes it impossible to effectively protect the lock body part.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a misoperation prevention interlocking structure for high-voltage switchgear, comprising a main body of the misoperation prevention interlocking structure and a high-voltage switchgear. The high-voltage switchgear is provided with a cabinet door and a cabinet body that are hinged to each other. The main body of the misoperation prevention interlocking structure is provided with a door interlocking panel and a positioning seat that are positioned correspondingly, and the door interlocking panel and the positioning seat are fixed to the cabinet door and the cabinet body, respectively. A lock body shell is installed on the back of the door interlocking panel, and a second cable protection component and a first cable protection component fixed to the cabinet door are provided on the other side of the lock body shell. An electromagnetic control mechanism is provided inside the lock body shell, and the electromagnetic control mechanism is connected to a locking rod that movably passes through the lock body shell through an iron core. A magnetic suction plate that magnetically engages with the locking rod is installed inside the positioning seat, and a U-shaped structure that engages with the lock body shell is integrally provided on the side of the positioning seat.

[0006] Preferably, the lock body housing is provided with a return spring sleeved with the lock rod, and the lock body housing is screwed with a closing sensing element and an unlocking sensing element that cooperate with the lock rod.

[0007] Preferably, the lock body shell has an integral groove at one end near the positioning seat that engages with the positioning seat.

[0008] Preferably, an integrated circuit board is also installed inside the lock body housing, and the integrated circuit board is electrically connected to the electromagnetic control mechanism, the closing sensing element, and the unlocking sensing element.

[0009] Preferably, the integrated circuit board is also connected to a sensing cable, and the sensing cable is located inside the first cable protection component and the second cable protection component.

[0010] Preferably, the first cable protection component and the second cable protection component form an L-shaped channel structure, and the side of the second cable protection component is hinged to the first cable protection component, and the second cable protection component, the first cable protection component, and the lock body shell are all sealed together.

[0011] Preferably, the positioning seat and the locking rod are movably connected and engaged, and a sealing gasket is bonded and fixed to the inner side of the U-shaped structure of the positioning seat.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This anti-misoperation interlocking structure for high-voltage switchgear, through high-strength protective treatment of the lock body shell and locking rod, can prevent moisture intrusion and accurately position the lock body shell, ensuring overall structural strength and allowing the anti-misoperation interlocking structure to be applicable to various complex environments. This anti-misoperation interlocking structure for high-voltage switchgear integrates a U-shaped structure on the positioning seat used for fixing the magnetic plate. The positioning seat securely engages the lock body shell, reducing moisture intrusion into the moving parts of the locking rod and limiting the lock body shell's position, ensuring the stability of the relative position between the cabinet door and the cabinet body. Attached Figure Description

[0013] Figure 1 This is a top view of the anti-misoperation interlocking structure for a high-voltage switchgear according to the present invention.

[0014] Figure 2 This utility model relates to an anti-misoperation interlocking structure for high-voltage switchgear. Figure 1 Enlarged structural diagram at point A in the middle;

[0015] Figure 3 A top view of an anti-misoperation interlocking structure for a high-voltage switchgear according to this utility model;

[0016] Figure 4 This is a closed side view of an anti-misoperation interlocking structure for a high-voltage switchgear according to the present invention;

[0017] Figure 5 This is a closed rear view of a high-voltage switchgear anti-misoperation interlocking structure according to the present invention.

[0018] In the diagram: 1. Main body of the anti-misoperation interlocking structure; 2. Door interlocking panel; 3. Electromagnetic control mechanism; 4. Lock body shell; 5. Lock rod; 6. Positioning seat; 7. Magnetic suction plate; 8. Sealing gasket; 9. Integrated circuit board; 10. First cable protection component; 11. Induction cable; 12. High-voltage switchgear; 1201. Cabinet door; 1202. Cabinet body; 13. Second cable protection component; 14. Return spring; 15. Closing sensing element; 16. Unlocking sensing element. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5This utility model provides a technical solution: a misoperation prevention interlocking structure for a high-voltage switchgear, including a main body 1 and a high-voltage switchgear 12. The high-voltage switchgear 12 is provided with a hinged door 1201 and a cabinet body 1202. The main body 1 of the misoperation prevention interlocking structure is provided with a door interlocking panel 2 and a positioning seat 6 in corresponding positions, and the door interlocking panel 2 and the positioning seat 6 are respectively fixed to the door 1201 and the cabinet body 1202. A lock body shell 4 is installed on the back of the door interlocking panel 2, and an integrated circuit board 9 is installed inside the lock body shell 4. The integrated circuit board 9 is electrically connected to the electromagnetic control mechanism 3, the closing sensing element 15, and the unlocking sensing element 16. This structure is connected through a first cable protection component 10, a second cable protection component 13, and... The positioning seat 6 protects the seams of the lock body shell 4 where there are connection holes, ensuring the moisture-proof and dust-proof performance of the integrated circuit board 9. When the electromagnetic control mechanism 3 is powered on, the current passes through the coil to generate a magnetic field, attracting the iron core and locking the main body 1 of the anti-misoperation interlocking structure. When the power to the electromagnetic control mechanism 3 is cut off, the magnetic field disappears, and the reset spring 14 returns the locking rod 5 to its initial position, thus unlocking the lock. The integrated circuit board 9 is also connected to an induction cable 11, which is located inside the first cable protection component 10 and the second cable protection component 13. This structure uses the induction cable 11 to electrically interlock with the equipment inside the high-voltage switchgear 12, detecting the status of the equipment and determining whether to allow unlocking the cabinet door 12 according to preset logic. 01, and the other side of the lock body shell 4 is provided with a second cable protection component 13 and a first cable protection component 10 fixed to the cabinet door 1201. The lock body shell 4 is provided with an electromagnetic control mechanism 3, and the electromagnetic control mechanism 3 is connected to a locking rod 5 that moves through the lock body shell 4 through an iron core. The lock body shell 4 is provided with a return spring 14 sleeved with the locking rod 5, and the lock body shell 4 is fixed with screws to a closing sensing element 15 and an unlocking sensing element 16 that cooperate with the locking rod 5. In this structure, when the locking rod 5 moves, the locking rod 5 can sense the closing sensing element 15 and the unlocking sensing element 16 respectively to realize the sensing processing of unlocking and locking. The return spring 14 is used to assist the unlocking processing of the locking rod 5. The end of the lock body shell 4 near the positioning seat 6 is integrally provided with a positioning element 13 and a locking rod 16. The positioning seat 6 has a groove for engaging with the locking mechanism. This structure, by integrally forming a groove on the lock body shell 4 for engaging and positioning, allows the lock body shell 4 and the positioning seat 6 to fit tightly together, thus placing the locking rod 5 entirely within the positioning seat 6. The positioning seat 6 supports and limits the locking body shell 4, improving the closing accuracy of the anti-misoperation interlocking structure body 1. It also restricts the connection between the cabinet door 1201 and the cabinet body 1202, preventing errors in the closing of the cabinet door 1201 and ensuring the structural stability of the high-voltage switchgear 12. The positioning seat 6 has a magnetic suction plate 7 installed inside, which magnetically engages with the locking rod 5. The side of the positioning seat 6 also has an integrally formed U-shaped structure that engages with the lock body shell 4. An L-shaped channel structure is formed between the first cable protection component 10 and the second cable protection component 13.Furthermore, the second cable protection component 13 is hinged to the first cable protection component 10 on its side, and the second cable protection component 13, the first cable protection component 10, and the lock body shell 4 are all sealed together. This structure, through the first cable protection component 10 and the second cable protection component 13, positions the sensing cable 11 and strengthens the sealing of the lock body shell 4, effectively reducing moisture intrusion. The second cable protection component 13 can be opened and closed to facilitate the wiring of the sensing cable 11. The positioning seat 6 and the lock rod 5 are movably inserted together, and a sealing gasket 8 is glued and fixed to the inner side of the U-shaped structure of the positioning seat 6. This structure, through the sealing gasket 8, secures the locking part between the lock body shell 4 and the positioning seat 6, ensuring the sealing of the inner area of ​​the positioning seat 6, thereby protecting the moving parts of the lock rod 5. By providing protective performance for the anti-misoperation interlocking structure body 1, the anti-misoperation interlocking structure body 1 can be used in various complex environments.

[0021] Working principle: When using the anti-misoperation interlocking structure for this high-voltage switchgear, the high-voltage switchgear 12 first performs electromagnetic induction switching between the cabinet door 1201 and the cabinet body 1202 through the main body 1 of the anti-misoperation interlocking structure. The door interlocking panel 2 and the positioning seat 6 are bolted to the cabinet door 1201 and the cabinet body 1202 respectively. When the cabinet door 1201 is closed, the lock body shell 4 is inserted into the U-shaped structure of the positioning seat 6 and sealed and tightened by the sealing gasket 8. When the electromagnetic control mechanism 3 is powered on, the current passes through the coil to generate a magnetic field, attracting the iron core, so that the locking rod 5 is magnetically connected to the magnetic suction plate 7, locking the main body 1 of the anti-misoperation interlocking structure. When the power supply to the electromagnetic control mechanism 3 is cut off, the magnetic field disappears, and the reset spring... Spring 14 returns the locking rod 5 to its initial position, thus unlocking the device. The closing sensing element 15 and the unlocking sensing element 16 are used to monitor the position of the locking rod 5, thereby detecting the locking and unlocking. The integrated circuit board 9 is electrically interlocked with the equipment in the high-voltage switch cabinet 12 through the sensing cable 11 to detect the status of the equipment and decide whether to allow the cabinet door 1201 to be unlocked according to the preset logic. The first cable protection component 10 and the second cable protection component 13 are used for the routing and positioning of the sensing cable 11 and the sealing and strengthening treatment of the lock body shell 4, effectively reducing moisture intrusion. By improving the protection performance of the anti-misoperation interlocking structure body 1, the anti-misoperation interlocking structure body 1 can be used in various complex environments to complete a series of tasks.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A misoperation prevention interlocking structure for a high-voltage switchgear, comprising a main body (1) of the misoperation prevention interlocking structure and a high-voltage switchgear (12), wherein the high-voltage switchgear (12) is provided with a cabinet door (1201) and a cabinet body (1202) that are hinged to each other, characterized in that: The main body (1) of the anti-misoperation interlocking structure is provided with a door interlocking panel (2) and a positioning seat (6) with corresponding positions. The door interlocking panel (2) and the positioning seat (6) are fixed to the cabinet door (1201) and the cabinet body (1202) respectively. The back of the door interlocking panel (2) is equipped with a lock body shell (4). The other side of the lock body shell (4) is provided with a second cable protection component (13) and a first cable protection component (10) fixed to the cabinet door (1201). The lock body shell (4) is provided with an electromagnetic control mechanism (3). The electromagnetic control mechanism (3) is connected to a lock rod (5) that moves through the lock body shell (4) through an iron core. The positioning seat (6) is provided with a magnetic suction plate (7) that magnetically engages with the lock rod (5). The side of the positioning seat (6) is integrally provided with a U-shaped structure that engages with the lock body shell (4).

2. The anti-misoperation interlocking structure for high-voltage switchgear according to claim 1, characterized in that: The lock body housing (4) is provided with a return spring (14) sleeved with the lock rod (5), and the lock body housing (4) is screwed with a closing sensing element (15) and an unlocking sensing element (16) that cooperate with the lock rod (5).

3. The anti-misoperation interlocking structure for high-voltage switchgear according to claim 1, characterized in that: The lock body shell (4) has an integral groove at one end near the positioning seat (6) that engages with the positioning seat (6).

4. The anti-misoperation interlocking structure for a high-voltage switch cabinet according to claim 1, characterized in that: An integrated circuit board (9) is also installed inside the lock body shell (4), and the integrated circuit board (9) is electrically connected to the electromagnetic control mechanism (3), the closing sensing element (15) and the unlocking sensing element (16).

5. The anti-misoperation interlocking structure for high-voltage switchgear according to claim 4, characterized in that: The integrated circuit board (9) is also connected to a sensing cable (11), and the sensing cable (11) is located inside the first cable protection component (10) and the second cable protection component (13).

6. The anti-misoperation interlocking structure for high-voltage switchgear according to claim 5, characterized in that: The first cable protection component (10) and the second cable protection component (13) form an L-shaped channel structure, and the side of the second cable protection component (13) is hinged to the first cable protection component (10), and the second cable protection component (13), the first cable protection component (10) and the lock body shell (4) are all sealed together.

7. The anti-misoperation interlocking structure for high-voltage switchgear according to claim 1, characterized in that: The positioning seat (6) is movably inserted into the locking rod (5), and a sealing gasket (8) is glued and fixed to the inner side of the U-shaped structure of the positioning seat (6).

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