A warning device for circuit breaker closing

Abstract

The present application provides a signboard warning device for air switch anti-closing, including a warning signboard, a back plate and a clamping spring. The clamping spring is elastic, and a C-shaped handle is provided at one end of the clamping spring. The C-shaped handle is connected to the warning signboard. The warning signboard cooperates with the back plate to press the C-shaped handle. The back plate is provided on the side close to the air switch. A warning mark is provided on the warning signboard. The open end of the C-shaped handle is respectively provided with a first arm and a second arm that are gradually opened. The first arm and the second arm are each provided with a bending arm. The end of the bending arm is provided with a pin structure, and the pin structure is used to be inserted into the socket of the air switch. An extension part is provided on the end of the warning signboard away from the clamping spring, and a weighted base is provided on the end of the extension part away from the clamping spring, which solves the problem that the traditional hanging signboard of the air switch is easy to fall off during power maintenance.

Description

Technical Field

[0001] The invention relates to the field of power plant maintenance, and in particular to an anti-tipping type hanging device for preventing accidental closing of an air breaker. Background Art

[0002] A large number of small air switches are installed in the electrical control cabinets of power plants (substations). When the loads corresponding to these switches require maintenance, safety measures must be implemented: disconnect these switches and hang a "Do not close the switch, someone is working" sign on the switch operating handle to prevent accidental closing of the switch, which could send power to the maintenance site and pose a safety threat to operators or equipment.

[0003] However, the "Do not close the switch, someone is working" sign is usually hung with a hanging rope. Since the operating handle of a small air switch is generally small, the hanging rope of the sign has no fulcrum and can only be hung up with the extremely small protrusion on the surface of the operating handle. The sign hung in this way is very easy to fall off (fall off at the slightest touch), causing the safety measure to fail, which is not allowed by the electrical safety work regulations; moreover, these small air switches are usually installed in rows and compactly, with almost no space between the operating handles of adjacent small air switches. As a result, when operating a certain switch, there is a high possibility of accidentally touching the adjacent small air switch and causing misoperation, which has an adverse effect on the running electrical equipment, which is also not allowed to happen in power production.

[0004] Small circuit breakers usually have anti-closing sockets on the ear structures on both sides of the handle, but the holes are small. If a horizontal thin pin is used, it is difficult to plug and unplug, and the circuit breaker in the middle is difficult to operate the pin.

[0005] In summary, it is necessary to optimize and improve traditional signs to ensure that on-site safety measures are reliable and effective and to prevent personal injury and misoperation. Summary of the Invention

[0006] The invention provides an anti-tipping type hanging sign device for preventing accidental closing of a circuit breaker, which solves the problem that a traditional hanging sign of the circuit breaker is easily detached during power maintenance.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a signboard warning device for air switch anti-closing, including a warning signboard, a back plate and a clamping spring, the clamping spring is elastic, a C-shaped handle is provided at one end of the clamping spring, the C-shaped handle is connected to the warning signboard, the warning signboard cooperates with the back plate to press the C-shaped handle, the back plate is provided on the side close to the air switch, a warning mark is provided on the warning signboard, the open end of the C-shaped handle is respectively provided with a first arm and a second arm that are gradually opened, the first arm and the second arm are each provided with a bending arm, and a pin structure is provided at the end of the bending arm, which is used to be inserted into the socket of the air switch, and an extension part is provided at the end of the warning sign away from the clamping spring, and a weighted base is provided at the end of the extension part away from the clamping spring.

[0008] In a preferred solution, a sink groove is provided at one end of the warning sign, a C-shaped handle is provided in the sink groove, a boss is provided in the middle of the sink groove to form a C-shaped groove structure, and the C-shaped handle is stuck in the C-shaped groove structure.

[0009] In the preferred solution, the warning sign is provided with a slide groove, and flanges are provided on both sides of the back plate. The flanges are inserted into the warning sign along the slide groove so that the back plate presses the C-shaped handle. A card slot is provided at one end of the slide groove, and a card platform is provided at one end of the flange, and the card platform is stuck in the card slot.

[0010] In a preferred solution, both the card platform and the card slot are provided with an inclined surface structure, the end of the inclined surface structure of the card slot is provided with a narrow groove, and a deformable retaining edge is provided on the side of the narrow groove away from the inclined surface structure.

[0011] In a preferred solution, a battery, a switch device and an audible and visual alarm device are provided in the warning sign. The audible and visual alarm device is electrically connected to the battery through the switch device. The warning sign is tilted to turn on the switch device.

[0012] In the preferred solution, the weighted base is provided with an insulating plate, the insulating plate is provided with a guide rod, the guide rod is sleeved with a spring, the switch device includes a floating touch plate and a contact seat, the floating touch plate is slidably sleeved on the guide rod, the lower end of the spring abuts against the insulating plate, the upper end of the spring abuts against the floating touch plate, and a ball is provided on the upper surface of the floating touch plate. The inclination angle of the warning sign causes the ball to separate from the floating touch plate, so that the floating touch plate contacts the contact seat.

[0013] In the preferred solution, the contact seat is a C-shaped structure, the floating touch plate is arranged in the contact seat, and connecting rods are respectively provided on both sides of the upper end surface of the contact seat, the connecting rods are slidably connected to the warning sign, and the side of the connecting rod is provided with a toggle portion that extends outward from the warning sign, and the upper end of the connecting rod is provided with a concave card, each concave card respectively abuts against the outer side of the first arm and the second arm, and the toggle portion moves upward to cause the concave card to squeeze the first arm and the second arm inward, and cause the contact seat to move upward to contact the floating touch plate.

[0014] In the preferred solution, a V-shaped groove is provided in the middle of the floating touch plate, guide vertical plates are provided on both sides of the V-shaped groove, and receiving blocks are provided on the other two sides of the V-shaped groove. The lower end of the receiving block is connected to the insulating plate, and the warning sign is tilted to allow the ball to roll from the contact seat to the receiving block.

[0015] In a preferred solution, a sloped surface is provided on the top of the receiving block, and the sloped surface is lower at one end close to the V-shaped groove. A pull rod is provided at the lower end of the floating touch plate, and the pull rod passes through the insulating plate and the weighted base.

[0016] In a preferred solution, a hollow portion is provided at the lower end of the contact seat, and a detachable contact screw is provided on the side of the floating contact plate, and the contact screw is used to contact the contact seat.

[0017] The beneficial effects of the present invention are as follows: the snap-on installation method makes the installation of the sign very convenient, firm and reliable, and completely solves the original problem of "falling off at the touch"; at the same time, due to the limiting effect of the sign's clip spring, the operating handle of the air switch in the open state cannot move in the closing direction, thereby playing a locking function to prevent accidental closing, effectively ensuring the safety of people and equipment; the use of an assembled structure makes it easy to replace a single component, the processing technology of the components is simple, the cost is low, and the difficulty of assembly is low; the use of an extended and weighted design The design makes it more difficult to force the switch on when the warning sign is not inserted, reducing the possibility of accidental dialing; the tilt alarm design prevents unauthorized personnel from accidentally flipping the warning sign; the toggle part drives the concave card to squeeze the connecting spring to complete the installation and removal of the warning sign. The toggle part, concave card and connecting rod are made of insulating materials to avoid hand contact with the connecting spring, making the installation and removal of the warning sign more labor-saving and safer; the sound and light alarm is triggered when the toggle part moves, which can promptly warn the toggle part and remind nearby maintenance personnel that the sign has been removed, further improving the reliability of anti-closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and examples.

[0019] Figure 1 It is a schematic diagram of the application of the present invention.

[0020] Figure 2 It is a disassembled schematic diagram of the present invention.

[0021] Figure 3 It is a structural diagram of the clamping spring of the present invention.

[0022] Figure 4 It is a lengthened and weighted schematic diagram of the present invention.

[0023] Figure 5 It is an internal schematic diagram of the present invention.

[0024] Figure 6 It is a schematic diagram of an internal top view of the present invention.

[0025] Figure 7 It is an internal cross-sectional view of the present invention.

[0026] Figure 8 It is a partial structural diagram of the present invention.

[0027] Figure 9 It is a schematic diagram of the contact seat of the present invention.

[0028] Figure 10 It is a state diagram of the extruded clamping spring of the present invention.

[0029] Figure 11 It is a cross-sectional view of the tilt state of the present invention.

[0030] Figure 12 It is an oblique view of the inclination state of the present invention.

[0031] Figure 13 It is a system connection diagram of the present invention.

[0032] In the figure: warning sign 1; sink 101; card slot 102; slide 103; boss 104; blocking edge 105; extension part 106; back plate 2; card platform 201; flange 202; snap spring 3; latch structure 301; bending arm 302; C-shaped handle 303; first arm 304; second arm 305; air switch 4; jack 401; dial handle 402; ear seat 403; weighted base 5; insulating plate 501; guide rod 502; receiving block 503; sealing plate 6; battery 7; buzzer 8; switch device 9; floating contact plate 901; contact seat 902; spring 903; ball 904; connecting rod 905; recessed card 906; toggle part 907; guide vertical plate 908; V-shaped groove 909; pull rod 910; contact screw 911; warning light 10; circuit board 11. DETAILED DESCRIPTION

[0033] Example 1:

[0034] like Figure 1-13 In the invention, a warning device for preventing air switch from closing includes a warning sign 1, a back plate 2 and a clamping spring 3. A sinking groove 101 is provided at one end of the warning sign 1. The clamping spring 3 is elastic. A C-shaped handle 303 is provided at one end of the clamping spring 3. The C-shaped handle 303 is arranged in the sinking groove 101. The warning sign 1 is provided with a slide groove 103. Flanges 202 are provided on both sides of the back plate 2. The flanges 202 are inserted into the warning sign 1 along the slide groove 103 so that the back plate 2 presses the C-shaped handle 303. The back plate 2 is arranged near the air switch 4. On one side, a warning sign is provided on the warning sign 1, and the open ends of the C-shaped handle 303 are respectively provided with a first arm 304 and a second arm 305 that are gradually opened. The first arm 304 and the second arm 305 are each provided with a bending arm 302, and the end of the bending arm 302 is provided with a latch structure 301, which is used to be inserted into the socket 401 of the air switch 4. The end of the warning sign 1 away from the clamping spring 3 is provided with an extension portion 106, and the end of the extension portion 106 away from the clamping spring 3 is provided with a weighted base 5.

[0035] A typical small air switch housing is provided with ear seats 403 on both sides close to the dial handle 402 , and the ear seats 403 are provided with a socket 401 .

[0036] The snap spring 3 can be made of bent spring steel. To ensure the safety and reliability of the warning sign, the snap spring should be made of non-metallic insulating flame-retardant material, or outsourced with insulating material to prevent the installer from accidentally dropping it and causing grounding or short circuit to other circuits. After assembling the warning sign 1, back plate 2 and snap spring 3, pinch the first arm 304 and the second arm 305 with your hand to make them move relative to each other and retract. Align the two pin structures 301 with the socket 401, release the first arm 304 and the second arm 305, and the elastic force causes the pin structure 301 to be inserted into the socket 401, and the bent arm 302 rests on the dial handle 402. At this time, the first arm 304 and the second arm 305 are vertical, the warning sign 1 is hung at the smallest end, and a warning slogan is printed on the warning sign 1.

[0037] When the sign is hung on the air switch 4, the extended portion 106 lengthens the warning sign 1 and extends downward for a distance, and a heavier weighted base 5 is installed at the lower end of the extended portion 106. After installing the weighted base 5, the overall weight of the sign increases, which increases the pressing force on the dial handle 402, making it more difficult to dial the dial handle 402 upward. Since the force point of the clamping spring 3 is at the bending arm 302 when the dial handle 402 is dialed upward, lengthening the lower end of the warning sign 1 is equivalent to increasing the force arm of the resistance torque. The combination of the two greatly increases the force required to dial the handle 402 upward, effectively preventing the operation of the adjacent air switch from easily causing the dial handle 402 or the warning sign 1 to flip over.

[0038] The sealing plate 6 is used to seal the extended portion 106 .

[0039] In a preferred embodiment, a boss 104 is provided in the middle of the sink 101 to form a C-shaped groove structure, and the C-shaped handle 303 is clamped in the C-shaped groove structure.

[0040] The boss 104 blocks the C-shaped handle 303 to prevent the C-shaped handle 303 from narrowing and falling out of the opening of the recess 101 when the clamping spring 3 is deformed.

[0041] In a preferred solution, a clamping slot 102 is provided at one end of the slide groove 103 , and a clamping platform 201 is provided at one end of the flange 202 , and the clamping platform 201 is clamped in the clamping slot 102 .

[0042] In a preferred solution, both the card platform 201 and the card slot 102 are provided with an inclined surface structure. The end of the inclined surface structure of the card slot 102 is provided with a narrow groove, and a deformable retaining edge 105 is provided on the side of the narrow groove away from the inclined surface structure.

[0043] When the warning sign 1 and back panel 2 are closed, the inclined surface of the retaining plate 201 aligns with the inclined surface of the retaining slot 102, and the tip of the inclined surface of the retaining plate 201 is locked in the narrow slot, thus securing the position. Both the warning sign 1 and back panel 2 can be made of plastic. To slide the back panel 2 out, the retaining edge 105 at the narrow slot is bent upward to deform it, allowing the back panel 2 to slide out.

[0044] In a preferred embodiment, a battery 7, a switch device 9 and an audible and visual alarm device are provided in the warning sign 1. The audible and visual alarm device is electrically connected to the battery 7 via the switch device 9. The warning sign 1 is tilted to turn on the switch device 9.

[0045] The sound and light alarm device includes a buzzer 8 and a warning light 10. The warning light 10 can be a light-emitting diode, and the battery 7 can be a button battery. The buzzer 8 and the warning light 10 are connected in series. A circuit board 11 is also provided. The circuit board 11 is provided with necessary electrical components. The buzzer 8 supplies power to the circuit board 11, the buzzer 8 and the warning light 10.

[0046] In the preferred embodiment, the weighted base 5 is provided with an insulating plate 501, a guide rod 502 is provided on the insulating plate 501, a spring 903 is sleeved on the guide rod 502, the switch device 9 includes a floating touch plate 901 and a contact seat 902, the floating touch plate 901 is slidably sleeved with the guide rod 502, the lower end of the spring 903 abuts against the insulating plate 501, the upper end of the spring 903 abuts against the floating touch plate 901, and a ball 904 is provided on the upper end surface of the floating touch plate 901. The warning sign 1 is tilted so that the ball 904 is separated from the floating touch plate 901, so that the floating touch plate 901 contacts the contact seat 902.

[0047] When the ball 904 is on the floating touch plate 901, gravity compresses the floating touch plate 901, causing the spring 903 to be compressed. At this time, the floating touch plate 901 is separated from the contact seat 902. When the warning sign 1 touches and flips to a certain angle or the handle 402 flips and drives the warning sign 1 to flip, the ball 904 slides from the side of the floating touch plate 901, causing the total weight of the floating touch plate 901 to be reduced. Under the action of the spring 903, the floating touch plate 901 moves up and touches the contact seat 902.

[0048] The positive and negative poles of the battery 7 are electrically connected to the floating contact plate 901 and the contact seat 902 respectively. When the floating contact plate 901 contacts the contact seat 902, the buzzer 8 and the warning light 10 connected in series in the circuit are energized and work, emitting a buzzer and flashing, indicating that the warning sign 1 has been touched and flipped to a certain angle.

[0049] In the preferred embodiment, the contact seat 902 is a C-shaped structure, and the floating touch plate 901 is arranged in the contact seat 902. Connecting rods 905 are respectively provided on both sides of the upper end surface of the contact seat 902. The connecting rod 905 is slidably connected to the warning sign 1. The side of the connecting rod 905 is provided with a toggle portion 907 that extends outward from the warning sign 1. The upper end of the connecting rod 905 is provided with a concave card 906. Each concave card 906 respectively abuts against the outside of the first arm 304 and the second arm 305. The toggle portion 907 moves upward to allow the concave card 906 to squeeze the first arm 304 and the second arm 305 inward, and to cause the contact seat 902 to move upward to contact the floating touch plate 901.

[0050] Warning sign 1 has a slot on its side, into which a toggle 907 slides. By pinching the two toggle members 907 with two fingers, the connecting rod 905 is moved upward. The two recessed latches 906 press the first and second arms 304, 305 inward, narrowing the distance between the two latch structures 301 and allowing them to be released from the socket 401. Simultaneously, as the connecting rod 905 moves the contact holder 902 upward, the lower end surface of the C-shaped structure of the contact holder 902 contacts the floating contact plate 901, completing the circuit and activating the buzzer 8 and warning light 10 to alert maintenance personnel.

[0051] In general, no matter the warning sign 1 is turned over or removed, the sound and light alarm device will be activated to alert the maintenance personnel, which greatly improves the safety factor during maintenance.

[0052] A delayed shutdown circuit can be set in the circuit board 11. After the sound and light alarm device is triggered, even if the warning sign 1 is reset or the shape of the clamping spring 3 is restored, the buzzer 8 and the warning light 10 will still work for a certain period of time to ensure that the warning message can be received by the maintenance personnel.

[0053] In the preferred solution, a V-shaped groove 909 is provided in the middle of the floating touch plate 901, and guide vertical plates 908 are provided on both sides of the V-shaped groove 909. A receiving block 503 is provided on the other two sides of the V-shaped groove 909. The lower end of the receiving block 503 is connected to the insulating plate 501, and the warning sign 1 is tilted so that the ball 904 rolls from the contact seat 902 to the receiving block 503.

[0054] A channel is provided in the middle of the guide vertical plates 908 on both sides to allow the ball 904 to pass through. The slope of the V-shaped groove 909 is along the moving direction of the channel. Therefore, when the warning sign 1 is tilted at a small angle, the ball 904 can be stable in the middle of the V-shaped groove 909. When the tilt angle is large, the ball 904 flips over the slope of the V-shaped groove 909 and falls onto the receiving block 503, thereby reducing the total weight of the floating touch plate 901.

[0055] In a preferred solution, a sloped surface is provided on the top of the receiving block 503 , and the sloped surface is lower at the end close to the V-shaped groove 909 . A pull rod 910 is provided at the lower end of the floating contact plate 901 , and the pull rod 910 passes through the insulating plate 501 and the weighted base 5 .

[0056] After the ball 904 falls onto the receiving block 503, when the warning sign 1 returns to vertical, since the end of the slope surface close to the V-shaped groove 909 is lower and the height of the V-shaped groove 909 is higher than the receiving block 503, the ball 904 will rest against the side wall of the V-shaped groove 909. At this time, it is necessary to pull the pull rod 910 to make the V-shaped groove 909 drop, and the ball 904 falls back to the center of the V-shaped groove 909. The sign device is reset, and the alarm is released after a delay.

[0057] In a preferred solution, a hollow portion is provided at the lower end of the contact seat 902 , and a detachable contact screw 911 is provided on the side of the floating contact plate 901 , and the contact screw 911 is used to contact the contact seat 902 .

[0058] The outline of the square hollow portion at the lower end of the contact seat 902 is larger than the outer outline of the floating touch plate 901, which facilitates the floating touch plate 901 to enter the contact seat 902. In order to facilitate the contact between the floating touch plate 901 and the contact seat 902 when the contact seat 902 moves upward, a contact screw 911 is installed on the side of the floating touch plate 901. When the contact seat 902 moves upward, it can be stopped by the contact screw 911 to form contact.

[0059] Example 2:

[0060] The sign consists of three components: a base, a back plate, and a clamp.

[0061] In accordance with the relevant requirements of the safety work regulations of the power industry, the three components of the signboard are all made of PVC flame retardant material.

[0062] The base of the sign has two details: one is to dig a groove inside to install the fixed end of the sign clamp, and the other is to hollow out the openings on the base corresponding to the front ends of the clamp to ensure the operational flexibility of the clamp (eliminating the stiffness) and prevent the clamp from deformation and loss of elasticity.

[0063] The back panel of the sign is embedded in the base in a slot manner, so that the base and the clamping part fit tightly together, and it is convenient to replace the clamping part.

[0064] The clamping piece of the sign has good elasticity, and the protruding buckles at both ends of its front can be embedded in the small holes on both sides of the operating handle of the small air switch.

[0065] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A signboard warning device for circuit breaker anti-closing, characterized by: The device comprises a warning sign (1), a back plate (2) and a clamping spring (3), wherein the clamping spring (3) is elastic, a C-shaped handle (303) is provided at one end of the clamping spring (3), the C-shaped handle (303) is connected to the warning sign (1), the warning sign (1) cooperates with the back plate (2) to press the C-shaped handle (303), the back plate (2) is provided on a side close to the air switch (4), a warning mark is provided on the warning sign (1), and the open ends of the C-shaped handle (303) are respectively provided with first arms that gradually open. (304) and a second arm (305), the first arm (304) and the second arm (305) are each provided with a bending arm (302), the end of the bending arm (302) is provided with a latch structure (301), the latch structure (301) is used to be inserted into the socket (401) of the air switch (4), the end of the warning sign (1) away from the clamping spring (3) is provided with an extension portion (106), and the end of the extension portion (106) away from the clamping spring (3) is provided with a weighted base (5); A battery (7), a switch device (9) and an audible and visual alarm device are provided in the warning sign (1); the audible and visual alarm device is electrically connected to the battery (7) via the switch device (9); the warning sign (1) is tilted to turn on the switch device (9); The weighted base (5) is provided with an insulating plate (501), a guide rod (502) is provided on the insulating plate (501), a spring (903) is sleeved on the guide rod (502), the switch device (9) includes a floating touch plate (901) and a contact seat (902), the floating touch plate (901) and the guide rod (502) are slidably sleeved, the lower end of the spring (903) abuts against the insulating plate (501), the upper end of the spring (903) abuts against the floating touch plate (901), a ball (904) is provided on the upper end surface of the floating touch plate (901), and the warning sign (1) is tilted so that the ball (904) is separated from the floating touch plate (901), so that the floating touch plate (901) contacts the contact seat (902); The positive and negative electrodes of the battery (7) are electrically connected to the floating contact plate (901) and the contact seat (902) respectively.

2. The sign-post warning device for circuit breaker anti-closing according to claim 1 is characterized by: A sink groove (101) is provided at one end of the warning sign (1), a C-shaped handle (303) is provided in the sink groove (101), a boss (104) is provided in the middle of the sink groove (101) to form a C-shaped groove structure, and the C-shaped handle (303) is stuck in the C-shaped groove structure.

3. The sign-post warning device for circuit breaker anti-closing according to claim 1 is characterized by: The warning sign (1) is provided with a slide groove (103), and flanges (202) are provided on both sides of the back plate (2). The flanges (202) are inserted into the warning sign (1) along the slide groove (103) so that the back plate (2) presses the C-shaped handle (303). One end of the slide groove (103) is provided with a card slot (102), and one end of the flange (202) is provided with a card platform (201), and the card platform (201) is stuck in the card slot (102).

4. The signboard warning device for circuit breaker anti-closing according to claim 3 is characterized in that: Both the card platform (201) and the card slot (102) are provided with an inclined surface structure. The end of the inclined surface structure of the card slot (102) is provided with a narrow groove, and a deformable retaining edge (105) is provided on a side of the narrow groove away from the inclined surface structure.

5. The sign-post warning device for circuit breaker anti-closing according to claim 1 is characterized by: The contact seat (902) is a C-shaped structure. The floating touch plate (901) is arranged in the contact seat (902). Connecting rods (905) are respectively provided on both sides of the upper end surface of the contact seat (902). The connecting rod (905) is slidably connected to the warning sign (1). A toggle portion (907) extending outward from the warning sign (1) is provided on the side of the connecting rod (905). A concave card (906) is provided on the upper end of the connecting rod (905). Each concave card (906) abuts against the outer side of the first support arm (304) and the second support arm (305). The toggle portion (907) moves upward to cause the concave card (906) to press the first support arm (304) and the second support arm (305) inward, and causes the contact seat (902) to move upward to contact the floating touch plate (901).

6. The sign-post warning device for circuit breaker anti-closing according to claim 1 is characterized by: A V-shaped groove (909) is provided in the middle of the floating touch plate (901), guide vertical plates (908) are provided on both sides of the V-shaped groove (909), and receiving blocks (503) are provided on the other two sides of the V-shaped groove (909). The lower end of the receiving block (503) is connected to the insulating plate (501), and the warning sign (1) is tilted so that the ball (904) rolls from the contact seat (902) to the receiving block (503).

7. The sign-post warning device for circuit breaker anti-closing according to claim 6 is characterized by: The top of the receiving block (503) is provided with a sloped surface, and the end of the sloped surface close to the V-shaped groove (909) is lower. The lower end of the floating touch plate (901) is provided with a pull rod (910), and the pull rod (910) passes through the insulating plate (501) and the weighted base (5).

8. The sign-post warning device for circuit breaker anti-closing according to claim 1 is characterized by: A hollow portion is provided at the lower end of the contact seat (902), and a detachable contact screw (911) is provided on the side of the floating contact plate (901), wherein the contact screw (911) is used to contact the contact seat (902).

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