An electrical switchgear tripping circuit safety disconnect device

Abstract

This invention discloses a safety tripping device for an electrical control panel tripping circuit, integrated inside a housing. The top of a push-rod button extends from the housing and its bottom connects to the top of a first push-rod. The bottom of the first push-rod engages with a second push-rod auxiliary component of a second press-and-return mechanism. A button auxiliary component is machined on the inner wall of the housing, acting on the push-rod button to allow the first push-rod to advance laterally and return to its original position. The second push-rod is perpendicular to the first push-rod and extends out of the housing; its auxiliary component acts on the second push-rod to allow it to advance longitudinally and return to its original position. A support bearing assembly engages with one end of a one-way safety switch button, the other end of which extends out of the housing. A drive assembly is fixedly connected to the support bearing assembly and is installed in conjunction with the second push-rod auxiliary component.

Description

Technical Field

[0001] This disclosure relates to a safety tripping device for an electrical control panel tripping circuit, which belongs to the field of mechanical related technology. Background Technology

[0002] All electrical operations must be performed with safety as the primary consideration. Emergency mechanical tripping is a passive operation based on the complete failure of the electrical control tripping circuit and the electrical control circuit being in a non-operational state. Furthermore, since the emergency mechanical tripping button is located on the switch cabinet body, the safe operating distance for personnel does not meet the requirements, and personal safety cannot be guaranteed.

[0003] Other loads on the bus section where the 10kV electrical control panel is located are important loads. When the electrical control trip coil of the 10kV electrical control panel burns out or the circuit fails, the bus cannot be shut down and the branch can only be tripped through emergency mechanical tripping.

[0004] To address the aforementioned scenarios, existing devices sometimes only have a telescopic switch mechanism, suitable for single-operation safety tripping. Some 10kV electrical control panel trip circuit switches have a rotary locking device and a trip button; the tripping function only activates after the rotary locking device is opened. Existing devices cannot simultaneously achieve rotary unlocking, position locking, and push-to-open functions. Furthermore, existing devices are electrically controlled, requiring a drive motor and mechanism, resulting in large and heavy devices that are inconvenient to operate. Additionally, current devices require direct contact with the safety tripping mechanism during operation, which could easily cause personal injury in the event of an accident. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this disclosure provides a safety tripping device for electrical control panel circuit breakers, which enables safe operation of electrical control panel circuit breakers, effectively prevents electrical accidents, and to a certain extent avoids the expansion of power outage areas.

[0006] Specifically, the first aspect of this disclosure provides a safety tripping device for an electrical control panel tripping circuit, comprising: a first press-and-push return mechanism, the first press-and-push return mechanism being integrated inside a housing, including a push button, a first push rod, and a push button auxiliary assembly; wherein, the top of the push button extends from the housing and the bottom is connected to the top of the first push rod, and the bottom of the first push rod cooperates with the second push rod auxiliary assembly of the second press-and-push return mechanism; the button auxiliary assembly is processed on the inner wall of the housing, and the push button auxiliary assembly acts on the push button to enable the first push rod to be laterally advanced and reset; The second press-and-return mechanism is integrated inside the housing and includes a second push rod and a second push rod auxiliary assembly. The second push rod is perpendicular to the first push rod and extends out of the housing to press the externally mounted trip button. The second push rod auxiliary assembly is machined on the inner wall of the housing and acts on the second push rod to enable it to advance longitudinally and return to its original position. A one-way rotary drive mechanism, integrated inside the housing, includes a one-way safety switch button, a support bearing assembly, and a drive assembly. The support bearing assembly is fixed to the inner wall of the housing and mates with one end of the one-way safety switch button, rotatably supporting the button. The other end of the one-way safety switch button extends out of the housing and is adapted to an external panel locking knob. The drive assembly is fixedly connected to the support bearing assembly and is installed in conjunction with the second push rod straight rod auxiliary assembly.

[0007] In some embodiments, the push button auxiliary assembly includes a push button reset slide, a reset rod, a push button reset spring, a push button reset wedge block, and a push button sliding boss; The inner wall of the outer casing is machined with the push rod button reset slide, and the push rod button reset slide is perpendicular to the push rod button. The reset rod is embedded in the reset slide of the push rod button, and the reset spring of the push rod button is sleeved on the outside of the reset rod placed outside the reset slide of the push rod button. The top of the push button reset wedge block is fixedly connected to the bottom of the reset rod, and the inclined surface of the push button reset wedge block faces the reset direction of the push button; The sliding boss of the push rod button is sleeved on the push rod button and can slide on the push rod button. The inclined surface of the sliding boss of the push rod button faces the reset direction of the push rod button.

[0008] In some embodiments, the push rod button auxiliary assembly further includes a push rod button fixing boss, wherein the push rod button fixing boss is integrally formed with the bottom of the push rod button, and the push rod button fixing boss contacts the top of the first push rod rod.

[0009] In some embodiments, the push button auxiliary assembly further includes a push button limiting plate, wherein the push button limiting plate is fixed to the lower middle part of the push button and is farther from the first push rod than the push button sliding boss, for limiting the maximum extension distance of the push button.

[0010] In some embodiments, the second push rod straight rod auxiliary assembly includes a push rod straight rod wedge block, a push rod straight rod first slide rail, and a push rod straight rod return first spring; The push rod wedge block is integrally formed with the bottom of the first push rod, the bottom of the push rod wedge block is equipped with the first slide rail of the push rod, the sliding end of the second push rod is embedded in the first slide rail of the push rod, and the inclined surface of the push rod wedge block faces the pushing direction of the push button; The push rod return spring is a horizontally placed compression spring, with one end fixed to the push rod wedge block and the other end fixed to the inner wall of the housing.

[0011] In some embodiments, the second push rod straight rod auxiliary assembly further includes a push rod straight rod limiting plate, a push rod straight rod return second spring, and a push rod straight rod second slide rail; wherein, the push rod straight rod limiting plate is fixedly installed on the second push rod straight rod, the push rod straight rod return second spring is sleeved on the second push rod straight rod, and one end of the push rod straight rod return second spring is fixed to the lower end of the push rod straight rod limiting plate, the second push rod straight rod is embedded in the push rod straight rod second slide rail, the push rod straight rod second slide rail is integrally formed with the drive assembly, and the drive assembly is sleeved on the push rod straight rod return second spring.

[0012] In some embodiments, the drive assembly includes a one-way rotating drive wheel, the wheel body of which is fixedly connected to the inner ring of the support bearing assembly, and the upper side of the one-way rotating drive wheel corresponds to the bottom of the first push rod straight rod; at the same time, a portion of the one-way rotating drive wheel is integrally formed with the second slide rail of the push rod straight rod, and another portion of the one-way rotating drive wheel is sleeved on the second return spring of the push rod straight rod, and the radial dimension of the portion sleeved on the second return spring of the push rod straight rod is greater than the radial dimension of the portion integrally formed with the second slide rail of the push rod straight rod.

[0013] In some embodiments, the drive assembly further includes a drive wheel return spring; wherein the drive wheel return spring is a torsion spring, and one end of the drive wheel return spring is fixed to the shaft diameter of the unidirectional rotating drive wheel, and the other end is fixed to the inner sidewall of the housing.

[0014] In some embodiments, the support bearing assembly includes a first support bearing, a second support bearing, and a third support bearing; The first, second, and third support bearings are installed longitudinally from top to bottom, and are respectively fixed laterally and symmetrically to the inner wall of the housing. The inner rings of the first and second support bearings cooperate with the drive assembly, allowing the drive assembly to rotate freely around its own axis. The inner ring of the third support bearing cooperates with one end of the shaft diameter of the one-way safety switch knob, providing rotational support for the one-way safety switch knob.

[0015] In some embodiments, the electrical panel trip circuit safety tripping device further includes: a plurality of fixed suction cups are evenly distributed on the outer side wall of the outer casing near the external panel, and the suction surface of the fixed suction cups is in contact with the side wall of the external panel.

[0016] The electrical control panel trip circuit safety tripping device with the above configuration can be applied to scenarios where the electrical control panel trip circuit cannot be effectively disconnected and the tripping coil is burned out, realizing practical operation of safe tripping. It can also realize safe tripping of the control panel even when the electrical control circuit has failed, and can be operated from a certain safe distance on the side of the control panel to avoid direct contact and direct operation between personnel and equipment, thereby ensuring the safety of personnel operation. It also has the functions of rotation unlocking, position locking and press tripping, effectively solving the safety locking problem that the tripping button of the control panel safety tripping switch can only take effect after the rotation locking device is turned open.

[0017] The safety tripping device for the electrical control panel tripping circuit of this disclosure has been described in general terms above. The details described below with reference to the accompanying drawings will make it easier to understand. Attached Figure Description

[0018] The accompanying drawings are provided to better understand the invention and are not intended to unduly limit the scope of the invention. Wherein: Figure 1 This is a schematic diagram of the safety tripping device for the electrical panel tripping circuit according to an embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of the safety tripping device for the electrical panel tripping circuit according to an embodiment of the present invention. Detailed Implementation

[0019] The technical solution of the present invention will be described more clearly below by referring to the accompanying drawings and specific embodiments.

[0020] It should be noted that the accompanying drawings of this invention are merely schematic diagrams for clearly illustrating the parts related to the present invention, and do not show some unnecessary parts. Therefore, these drawings should not be construed as limiting the invention, and may differ from the actual structure in use. Furthermore, it should be understood that the terms "up," "down," "left," "right," "front," and "rear," etc., indicating orientation or position, may appear in the following description for ease of explanation and are not restrictive. In this disclosure, "up," "down," "left," "right," "front," and "rear" all represent conventional vehicle directions, i.e., the front of the vehicle is "front," the rear is "rear," the roof is "up," the bottom is "down," and left and right when facing forward are "left" and "right." Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0021] As an embodiment of the present invention Figure 1 A schematic diagram of the safety tripping device for the tripping circuit of the electrical control panel according to an embodiment of the present invention is shown. Figure 1 A cross-sectional schematic diagram of the safety tripping device for the electrical panel circuit breaker according to an embodiment of the present invention is shown.

[0022] In this embodiment, the electrical panel trip circuit safety tripping device uses insulating material to make components that come into direct contact with the human body and the panel switch, thus meeting the insulation requirements for electrical operation and improving operational safety. Specifically, it may include a first press-push-return mechanism, a second press-push-return mechanism, and a one-way rotation drive mechanism integrated within the housing 1. The housing 1 is L-shaped for force transmission, enabling safe operation of the external electrical panel by pressing the knob to trip from the side.

[0023] In a specific embodiment, the first press-and-push return mechanism can be a non-metallic insulating component to prevent high-voltage conduction. The first press-and-push return mechanism includes a push rod button 3, a first push rod straight rod 2, and a push rod button auxiliary assembly. The top of the push rod button 3 extends out of the housing 1. For example, a through hole is provided at the lateral top of the housing 1, through which the top of the push rod button 3 extends out of the housing 1, thus facilitating pressing.

[0024] Furthermore, the bottom of the push button 3 is connected to the top of the first push rod 2. Preferably, the push button 3 can be a columnar structure, and the bottom of the push button 3 is vertically connected to the first push rod 2. It should be noted that the push button 3 and the push rod 2 can be fixedly connected, for example, by welding, threading, etc.

[0025] Furthermore, the bottom of the first push rod straight rod 2 cooperates with the second push rod straight rod auxiliary component of the second pressing and pushing return mechanism. For example, the first push rod straight rod 2 is a long strip metal rod or a long strip high-strength insulating rod. In a preferred embodiment, the bottom of the first push rod straight rod 2 can be fixedly installed with the push rod straight rod first slide rail 11 of the second push rod straight rod auxiliary component, or in a preferred embodiment, the bottom of the first push rod straight rod 2 is provided with a push rod straight rod wedge block 10, and the push rod straight rod wedge block 10 can be fixedly installed with the push rod straight rod first slide rail 11.

[0026] The button auxiliary component is machined on the inner wall of the housing 1, and the push rod button auxiliary component acts on the push rod button 3 so that the first push rod straight rod 2 can be pushed laterally and reset.

[0027] Furthermore, the second press-and-push return mechanism includes a second push rod 9 and a second push rod auxiliary assembly. The second push rod 9 is perpendicular to the first push rod 2, and the second push rod 9 extends out of the outer casing 1 to press the trip button of the external electrical panel. For example, the second push rod 9 is a long rod-shaped structure, perpendicular to the first push rod 2. The second push rod 9 and the first push rod 2 are arranged in an L-shape to achieve L-shaped transmission from "lateral force to longitudinal force", ultimately driving the trip action.

[0028] Furthermore, the inner wall of the outer casing 1 is processed with the second push rod straight rod auxiliary component, and the second push rod straight rod auxiliary component can act on the second push rod straight rod 9 so that the second push rod straight rod 9 can be longitudinally advanced and reset. Thus, by reciprocatingly pressing the push rod button 3, an L-shaped driving force is transmitted, and the first push rod straight rod 2 drives the reciprocating operation of the extended end of the second push rod straight rod 9, thereby performing the push-button switch opening and closing operation on the side of the panel safety trip switch.

[0029] Furthermore, the one-way rotation drive mechanism includes a one-way safety switch button 17, a support bearing assembly, and a drive assembly. The support bearing assembly is fixed to the inner wall of the housing 1 and engages with one end of the one-way safety switch button 17 (for example, the one-way safety switch knob 17 is a cylindrical knob structure), thereby enabling rotational support of the one-way safety switch button 17. The other end of the one-way safety switch button 17 extends out of the housing 1 and is adapted to the locking knob of the external control panel to achieve unlocking operation.

[0030] Meanwhile, the drive assembly is fixedly connected to the support bearing assembly and is installed in conjunction with the second push rod straight rod auxiliary assembly, thereby realizing the rotational support and the coordination of the pressing action. For example, the clockwise rotation of the safety switch one-way knob 13 is achieved by reciprocating the rotation of the housing 1, thereby realizing the rotational unlocking of the panel cabinet safety trip switch locking knob, and then the lateral trip operation is achieved by reciprocating the pressing of the push rod button 3.

[0031] As can be seen, the electrical panel trip circuit safety tripping device simultaneously possesses rotation unlocking, position locking, and press-to-open functions, and can be operated from the switch side of the external electrical panel. It specifically solves the safety locking problem where the tripping button only activates after the rotation locking device is opened, enabling safe tripping operations from a safe distance, quickly cutting off the circuit and preventing larger faults or accidents. The electrical panel trip circuit safety tripping device uses insulated components and has no direct contact with the metal parts of the panel, preventing high-voltage electricity from being conducted to the operator. All components of the electrical panel trip circuit safety tripping device are designed to have axes that are perpendicular or parallel to each other, ensuring that force transmission is not offset.

[0032] As another embodiment of the present invention, the electrical panel trip circuit safety tripping device further includes a safety device that can position and improve operational stability and convenience. Specifically, multiple fixed suction cups 26 are evenly distributed on the outer side wall of the outer casing 1 near the external panel. The adsorption surface of the fixed suction cups 26 is in contact with the side wall of the external panel to ensure that the device does not shift during operation. For example, the outer casing 1 is a rectangular or square shell, and the fixed suction cups 26 are fixedly connected to the outer casing 1, for example, by bolt connection or integral molding. Multiple fixed suction cups 26 are evenly distributed on the outer side wall of the outer casing 1 near the panel. For example, the fixed suction cups 26 are vacuum suction cups or magnetic suction cups, etc. The adsorption surface of the fixed suction cups 26 is in contact with the side wall of the panel. The electrical panel trip circuit safety tripping device is fixed to the panel by negative pressure or magnetic force, preventing the device from shifting during operation and facilitating disassembly. Of course, it can be applied to the general operation of different panels.

[0033] As a further embodiment, the push button auxiliary assembly includes a push button reset slide 4, a reset rod, a push button reset spring 5, a push button reset wedge block 6, and a push button sliding boss 7.

[0034] The inner wall of the outer casing 1 is machined with the push button reset slide 4, and the push button reset slide 4 is perpendicularly corresponding to the push button 3. For example, the inner wall of the outer casing 1 has a pre-reserved groove, and the push button reset slide 4 is a longitudinal strip groove structure, providing a guide path.

[0035] The reset rod is embedded in the push rod button reset slide 4, and the push rod button reset spring 5 is sleeved on the outside of the reset rod, which is located outside the push rod button reset slide 4.

[0036] The top of the push button reset wedge block 6 is fixedly connected to the bottom of the reset rod, and the inclined surface of the push button reset wedge block 6 faces the reset direction of the push button. The push button sliding boss 7 is sleeved on the push button 3 and can slide on the push button 3, and the inclined surface of the push button sliding boss 7 faces the reset direction of the push button 3.

[0037] As a further embodiment, the push-button auxiliary assembly further includes a push-button fixing boss 9, wherein the push-button fixing boss 9 is integrally formed with the bottom of the push-button 3, and the push-button fixing boss 9 contacts the top of the first push-button rod 2. For example, the bottom of the push-button 3 is integrally formed with a push-button fixing boss 9, which is cylindrical or rectangular, restricting the movement of the push-button 3 and preventing rotational offset.

[0038] As a further embodiment, the push button auxiliary assembly also includes a push button limiting plate 8, wherein the push button limiting plate 8 is fixed to the lower middle part of the push button 3 and is farther from the first push rod 2 than the push button sliding boss 7, for limiting the maximum extension distance of the push button 3. For example, the push button limiting plate 8 can be an annular or rectangular baffle, fixed to the lower middle part of the push button 3 and located inside the housing 1, and the outer diameter of the push button limiting plate 8 is larger than the button through hole size at the top of the housing 1, for limiting the maximum extension distance of the push button 3 and preventing the push button 3 from falling out of the housing 1.

[0039] As a further embodiment, the second push rod straight rod auxiliary assembly includes a push rod straight rod wedge block 10, a push rod straight rod first slide rail 11, and a push rod straight rod return first spring 12.

[0040] The push rod wedge block 10 is integrally formed with the bottom of the first push rod 2. The bottom of the push rod wedge block 10 is equipped with the first slide rail 11 of the push rod. The sliding end of the second push rod 3 is embedded in the first slide rail 11 of the push rod. The inclined surface of the push rod wedge block 10 faces the pushing direction of the push rod button 3.

[0041] The push rod return spring 12 is a horizontally placed compression spring, with one end fixed to the push rod wedge block 10 and the other end fixed to the inner wall of the outer casing 1. Thus, when the first push rod 2 moves laterally, the push rod return spring 12 is compressed and stores energy. When the push rod button 3 resets, the spring force of the push rod return spring 12 pushes the push rod 2 back to its initial lateral position, completing the reset.

[0042] Example: The top of the first push rod 2 is fixedly connected to the bottom of the push rod button 3 coaxially. The bottom of the first push rod 2 is integrally formed with a push rod wedge block 10. The push rod wedge block 10 can be a right-angled triangle structure, a trapezoidal structure, etc. When the push rod button 3 is pressed, it drives the first push rod 2 to move in the horizontal direction. The bottom of the first push rod 2 is equipped with the push rod wedge block 10. The first slide rail 11 of the push rod is installed on the inclined surface of the push rod wedge block 10. The sliding end 13 of the second push rod is embedded in the first slide rail 11 of the push rod. The push rod return spring 12 restricts the horizontal reciprocating motion.

[0043] As a further embodiment, the second push rod straight rod auxiliary assembly also includes a push rod straight rod limiting plate 14, a push rod straight rod return second spring 15, and a push rod straight rod second slide rail 16. The push rod straight rod limiting plate 14 is fixedly mounted on the second push rod straight rod 9. The push rod straight rod return second spring 15 is sleeved on the second push rod straight rod 9, with one end of the push rod straight rod return second spring 15 fixed to the lower end of the push rod straight rod limiting plate 14. The second push rod straight rod 9 is embedded in the push rod straight rod second slide rail 16. The push rod straight rod second slide rail 16 is integrally formed with the drive assembly, and the drive assembly is sleeved on the push rod straight rod return second spring 15.

[0044] For example: the sliding end 13 of the second push rod is embedded in the first slide rail 11 of the push rod, and the middle part of the second push rod 9 is embedded in the second slide rail 16 of the push rod, so that the second push rod 9 can reciprocate along the slide rail in a longitudinal direction and perpendicular to the first push rod 2. The second push rod 9 is fixed with a push rod limiting plate 14 (for example: the push rod limiting plate 14 can be a ring or rectangular baffle, etc.) to limit the maximum movement distance and prevent it from falling out of the slide rail; the protruding housing 1 of the second push rod 9 is directly opposite the "opening button" of the 10kV switchgear. When the second push rod 9 moves longitudinally, the opening button can be pressed directly to realize the opening operation. Furthermore, the push rod straight rod reset second spring 15 is sleeved on the outside of the second push rod straight rod 9, with one end fixed to the push rod straight rod limiting plate 14. When the second push rod straight rod 9 is driven to move longitudinally by the lateral driving force of the first push rod straight rod 2, the push rod straight rod reset second spring 15 is compressed. When the first push rod straight rod 2 is reset, the push rod straight rod reset second spring 15 pushes the second push rod straight rod 9 back to the initial position, so that the extended end of the second push rod straight rod 9 is separated from the trip button, thus completing the closing reset.

[0045] As a further embodiment, the support bearing assembly includes a first support bearing 19, a second support bearing 20, and a third support bearing 21. Specifically, the first support bearing 19, the second support bearing 20, and the third support bearing 21 are installed longitudinally from top to bottom, and are respectively fixed laterally and symmetrically to the inner wall of the housing 1. The inner rings of the first support bearing 19 and the second support bearing 20 cooperate with the drive assembly, allowing the drive assembly to rotate freely around its own axis. The inner ring of the third support bearing 21 cooperates with one end of the shaft diameter of the one-way safety switch knob 17, providing rotational support for the one-way safety switch knob 17. For example, the first support bearing 19, the second support bearing 20, and the third support bearing 21 are all rolling bearings.

[0046] As a further embodiment, the drive assembly includes a one-way rotating drive wheel 22. Specifically, the wheel body of the one-way rotating drive wheel 22 is fixedly connected to the inner ring of the first support bearing 19 and the inner ring of the second support bearing 20, respectively. The upper side of the one-way rotating drive wheel 22 corresponds to the bottom of the first push rod straight rod 2. At the same time, a part of the one-way rotating drive wheel 22 is integrally formed with the second slide rail 16 of the push rod straight rod, and the other part of the one-way rotating drive wheel 22 is sleeved on the push rod straight rod return second spring 15. The radial dimension of the part sleeved on the push rod straight rod return second spring 15 is greater than the radial dimension of the part integrally formed with the second slide rail 16 of the push rod straight rod.

[0047] Preferably, the one-way rotating drive wheel 22 includes the one-way rotating driven tooth 24 and the one-way rotating drive tooth 23. The outer ring of the one-way rotating drive wheel 22 is machined with the one-way rotating drive tooth 23. The one-way rotating drive tooth 23 meshes with the one-way rotating driven tooth 24, and meshes only on one side. The one-way rotating driven tooth 24 is machined on the outer side of the middle part of the one-way safety switch knob 17.

[0048] For example: One end of the safety switch one-way knob 17 is fixedly connected to the inner ring of the third support bearing 21, and the other end of the safety switch one-way knob 17 (i.e. the safety switch one-way knob protruding end 18) protrudes from the side wall of the outer casing 1 and is adapted to the "rotation locking device knob" of the 10KV panel (for example: inner hole fitting or slot connection, etc.), which can drive the panel locking knob to rotate. The outer side of the middle part of the one-way safety switch knob 17 is machined with a one-way rotating driven tooth 24 (the one-way rotating driven tooth 24 is a tooth structure that matches the one-way rotating drive tooth 22, and only meshes on one side). When the one-way rotating drive wheel 22 rotates clockwise, the one-way rotating drive tooth 23 meshes with the one-way rotating driven tooth 24, driving the one-way safety switch knob 17 to rotate clockwise synchronously, thereby unlocking the panel locking device. If the one-way rotating drive tooth 23 rotates counterclockwise, the one-way rotating drive tooth 23 and the one-way rotating driven tooth 24 cannot mesh due to the one-way structure, and the knob remains stationary.

[0049] As a further embodiment, the drive assembly also includes a drive wheel return spring 25. Specifically, the drive wheel return spring 25 is a torsion spring, and one end of the drive wheel return spring 25 is fixed to the shaft diameter of the unidirectional rotating drive wheel 22, and the other end is fixed to the inner sidewall of the housing 1.

[0050] Preferably, the first support bearing 19 and the second support bearing 20 are interference-fitted or transition-fitted with the unidirectional rotating drive wheel 22.

[0051] Example: The unidirectional rotary drive wheel 22 has a circular gear disk structure, with unidirectional rotary drive teeth 23 machined on the outer ring. The unidirectional rotary drive teeth 23 have teeth on only one side, with the other side being a smooth arc surface, thus achieving unidirectional drive function. The middle part of the unidirectional rotary drive wheel 22 is fixedly connected to the inner rings of the first support bearing 19 and the second support bearing 20, allowing it to rotate around the bearing axis. When the first push rod 2 moves laterally, it pushes the rim of the unidirectional rotary drive wheel 22, causing it to rotate clockwise. When the unidirectional rotary drive wheel 22 rotates clockwise under the push of the first push rod 2, the drive wheel return spring 25 is twisted and stores energy. When the first push rod 2 returns to its original position, the elastic force of the drive wheel return spring 25 causes the unidirectional rotary drive wheel 22 to rotate counterclockwise to reset, preparing for the next drive.

[0052] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A safety tripping device for an electrical control panel trip circuit, characterized in that, include: A first press-and-push return mechanism, integrated inside the housing, includes a push button, a first push rod, and a push button auxiliary assembly. The top of the push button extends from the housing and its bottom connects to the top of the first push rod. The bottom of the first push rod engages with the second push rod auxiliary assembly of the second press-and-push return mechanism. The button auxiliary assembly is machined on the inner wall of the housing, and it acts on the push button to allow the first push rod to be pushed laterally and reset. The second press-and-return mechanism is integrated inside the housing and includes a second push rod and a second push rod auxiliary assembly. The second push rod is perpendicular to the first push rod and extends out of the housing to press the externally mounted trip button. The second push rod auxiliary assembly is machined on the inner wall of the housing and acts on the second push rod to enable it to advance longitudinally and return to its original position. A one-way rotary drive mechanism, integrated inside the housing, includes a one-way safety switch button, a support bearing assembly, and a drive assembly. The support bearing assembly is fixed to the inner wall of the housing and mates with one end of the one-way safety switch button, rotatably supporting the button. The other end of the one-way safety switch button extends out of the housing and is adapted to an external panel locking knob. The drive assembly is fixedly connected to the support bearing assembly and is installed in conjunction with the second push rod straight rod auxiliary assembly.

2. The electrical control panel trip circuit safety tripping device according to claim 1, characterized in that, The push button auxiliary assembly includes a push button reset slide, a reset rod, a push button reset spring, a push button reset wedge block, and a push button sliding boss; The inner wall of the outer casing is machined with the push rod button reset slide, and the push rod button reset slide is perpendicular to the push rod button. The reset rod is embedded in the reset slide of the push rod button, and the reset spring of the push rod button is sleeved on the outside of the reset rod placed outside the reset slide of the push rod button. The top of the push button reset wedge block is fixedly connected to the bottom of the reset rod, and the inclined surface of the push button reset wedge block faces the reset direction of the push button; The sliding boss of the push rod button is sleeved on the push rod button and can slide on the push rod button. The inclined surface of the sliding boss of the push rod button faces the reset direction of the push rod button.

3. The electrical control panel trip circuit safety tripping device according to claim 2, characterized in that, The push rod button auxiliary assembly also includes a push rod button fixing boss, wherein the push rod button fixing boss is integrally formed with the bottom of the push rod button, and the push rod button fixing boss contacts the top of the first push rod rod.

4. The electrical control panel trip circuit safety tripping device according to claim 2, characterized in that, The push rod button auxiliary assembly also includes a push rod button limiting plate, wherein the push rod button limiting plate is fixed to the lower middle part of the push rod button and is farther away from the first push rod straight rod than the push rod button sliding boss, and is used to limit the maximum extension distance of the push rod button.

5. The electrical control panel trip circuit safety tripping device according to claim 1, characterized in that, The second push rod straight rod auxiliary assembly includes a push rod straight rod wedge block, a push rod straight rod first slide rail, and a push rod straight rod return first spring; The push rod wedge block is integrally formed with the bottom of the first push rod, the bottom of the push rod wedge block is equipped with the first slide rail of the push rod, the sliding end of the second push rod is embedded in the first slide rail of the push rod, and the inclined surface of the push rod wedge block faces the pushing direction of the push button; The push rod return spring is a horizontally placed compression spring, with one end fixed to the push rod wedge block and the other end fixed to the inner wall of the housing.

6. The electrical control panel trip circuit safety tripping device according to claim 5, characterized in that, The second push rod straight rod auxiliary assembly further includes a push rod straight rod limiting plate, a push rod straight rod return second spring, and a push rod straight rod second slide rail; wherein, the push rod straight rod limiting plate is fixedly installed on the second push rod straight rod, the push rod straight rod return second spring is sleeved on the second push rod straight rod, and one end of the push rod straight rod return second spring is fixed to the lower end of the push rod straight rod limiting plate, the second push rod straight rod is embedded in the push rod straight rod second slide rail, the push rod straight rod second slide rail is integrally formed with the drive assembly, and the drive assembly is sleeved on the push rod straight rod return second spring.

7. The electrical control panel trip circuit safety tripping device according to claim 6, characterized in that, The drive assembly includes a one-way rotating drive wheel. The wheel body of the one-way rotating drive wheel is fixedly connected to the inner ring of the support bearing assembly. The upper side of the one-way rotating drive wheel corresponds to the bottom of the first push rod straight rod. At the same time, a part of the one-way rotating drive wheel is integrally formed with the second slide rail of the push rod straight rod, and the other part of the one-way rotating drive wheel is sleeved on the second return spring of the push rod straight rod. The radial dimension of the part sleeved on the second return spring of the push rod straight rod is greater than the radial dimension of the part integrally formed with the second slide rail of the push rod straight rod.

8. The electrical control panel trip circuit safety tripping device according to claim 7, characterized in that, The drive assembly further includes a drive wheel return spring; wherein the drive wheel return spring is a torsion spring, and one end of the drive wheel return spring is fixed to the shaft diameter of the unidirectional rotating drive wheel, and the other end is fixed to the inner sidewall of the housing.

9. The electrical control panel trip circuit safety tripping device according to claim 1, characterized in that, The support bearing assembly includes a first support bearing, a second support bearing, and a third support bearing; The first, second, and third support bearings are installed longitudinally from top to bottom, and are respectively fixed laterally and symmetrically to the inner wall of the housing. The inner rings of the first and second support bearings cooperate with the drive assembly, allowing the drive assembly to rotate freely around its own axis. The inner ring of the third support bearing cooperates with one end of the shaft diameter of the one-way safety switch knob, providing rotational support for the one-way safety switch knob.

10. The electrical control panel trip circuit safety tripping device according to any one of claims 1-9, characterized in that, Also includes: The outer casing has multiple fixed suction cups evenly distributed on the outer side wall near the external panel cabinet, and the suction surface of the fixed suction cups is in contact with the side wall of the external panel cabinet.

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