An anti-mistouch isolation switch

Abstract

The present invention belongs to the technical field of disconnectors, and specifically relates to an anti-mis-touch disconnector. It comprises a base, the base, insulating columns are fixedly installed on both sides of the top of the base, a first contact seat is fixedly installed on the top of one of the insulating columns, and a second contact seat is fixedly installed on the top of the other insulating column; a static contact is fixedly installed on the top of the first contact seat, a knife is hinged on the static contact, and a moving contact is provided at the end of the knife away from the static contact; a contact slot is fixedly installed on the top of the second contact seat; support frames are provided on both sides of the second contact seat, and the support frames are fixedly connected to the top of the insulating column; the present invention can not only prevent the knife from accidentally rotating and closing the switch through the anti-mis-touch mechanism, but also can quickly close the switch when it is needed; the present invention can effectively protect the contact slot from the external harsh environment when the disconnector is in the open and non-operating state, and can also quickly close and open the switch.

Description

Technical Field

[0001] The invention belongs to the technical field of isolating switches, and in particular relates to an isolating switch that prevents accidental touching. Background Art

[0002] The isolating switch is an important electrical equipment used in high-voltage power systems. It is mainly used to achieve electrical isolation to ensure the safety of electrical equipment during overhaul or maintenance. It is usually installed in substations or transmission lines to connect or disconnect high-voltage circuits. The isolating switch performs the closing and opening operations of the switch through a mechanical device, and uses the contact and separation of fixed contacts and movable contacts to connect and disconnect the circuit. When the movable contact contacts the fixed contact, the circuit is closed; when separated, the circuit is disconnected. It is designed to withstand high voltage to ensure safe and effective current cutting in high-voltage power systems. The main function of the isolating switch is to provide electrical isolation to ensure safety during overhaul and maintenance of electrical equipment and prevent accidental current from flowing; at the same time, it can quickly cut off the power supply when the equipment fails, protect other equipment, and enhance the flexibility and safety of the system.

[0003] The Chinese patent with application number 202410973493.0 discloses an anti-overload drive isolating switch, including a first isolating switch structure, an auxiliary cut-off structure, a support seat, a protection base, a second isolating switch structure and a third isolating switch structure. The protection base is fixedly connected with the support seat, and the support seat is fixedly connected with the auxiliary cut-off structure. The first isolating switch structure, the second isolating switch structure and the third isolating switch structure are provided on the auxiliary cut-off structure and the support seat. The first isolating switch structure, the second isolating switch structure and the third isolating switch structure are used for conducting work, and the auxiliary cut-off structure is used for telescopic adjustment to cut off the first isolating switch structure, the second isolating switch structure and the third isolating switch structure. The lower ends of the first isolating switch structure, the second isolating switch structure and the third isolating switch structure are limited with the support seat, and the support seat and the protection base are fixedly combined to support the auxiliary cut-off structure.

[0004] When operating outdoor disconnectors, external uncertainties and human errors may cause the disconnectors in the open position to be accidentally closed, increasing safety risks. In addition, when closing and opening the disconnectors, if the operation speed is too slow, excessive arcs will be generated, further increasing safety risks. At the same time, as disconnectors are used outdoors, the contact connections of the disconnectors will be affected by the outdoor environment, causing aging and unstable connections. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the present invention provides an anti-mis-touch isolating switch. The present invention not only prevents the knife from accidentally rotating to close the switch through the anti-mis-touch mechanism, but also can quickly close the switch when it is needed, thereby preventing the slow closing speed from causing unstable closing and generating excessive arcs, thereby improving the closing safety. The present invention can effectively protect the contact slot from the external harsh environment when the isolating switch is in the open and non-operating state with an n-type protective cover, and can also quickly close and open the switch. The present invention makes the connection between the moving contact and the contact slot more firm and tight, thereby improving the stability of the closing connection.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] An anti-mistouch disconnector comprises a base, wherein the base has insulating columns fixedly mounted on both sides of the top of the base, wherein a first contact seat is fixedly mounted on the top of one of the insulating columns, and a second contact seat is fixedly mounted on the top of the other insulating column; a static contact is fixedly mounted on the top of the first contact seat, a switch is hinged on the static contact, and a moving contact is mounted on the end of the switch away from the static contact; a contact notch is fixedly mounted on the top of the second contact seat;

[0008] Support frames are provided on both sides of the second contact seat, and the support frames are fixedly connected to the top of the insulating column; and an anti-mistouch mechanism is commonly connected between the two sides of the switch and the corresponding support frames.

[0009] Further, the anti-mistouch mechanism includes a slide and a connecting rod, the slide is fixedly connected to one side of the knife, and a first slide groove is provided on the slide; one end of the connecting rod is slidably connected to the first slide groove through a rotating shaft, and the other end of the connecting rod is rotatably connected to one side of the L-shaped plate through a rotating shaft; a first pull tube is fixedly provided at one end of the connecting rod close to the slide;

[0010] A first L-shaped sliding block is fixedly provided on the bottom of the L-shaped plate, an L-shaped sliding groove is provided on the support frame, and the first L-shaped sliding block is located inside the L-shaped sliding groove and is slidably connected to the L-shaped sliding groove;

[0011] The L-shaped slide grooves on the two support frames are also slidably connected with an n-shaped protective cover, one end of the n-shaped protective cover is movably abutted against the L-shaped plate, and second pull tubes are fixedly provided on both sides of the n-shaped protective cover.

[0012] Furthermore, the top of the support frame is fixedly connected to a limit plate, and a sliding rod is fixedly connected to the side of the L-shaped plate away from the connecting rod, and the sliding rod passes through the limit plate and is slidably connected to the limit plate; a limit spring is sleeved on the sliding rod, and the two ends of the limit spring are respectively fixedly connected to the L-shaped plate and the limit plate; a limit block is fixedly provided on the end of the sliding rod away from the L-shaped plate.

[0013] Furthermore, when the knife switch is in a vertical state and one end of the connecting rod is located at the upper end of the slide, the limit spring is in a compressed state, and the n-type protective cover can cover the contact notch.

[0014] Further, the first slide groove is a T-shaped slide groove, in which a T-shaped slider is slidably connected, one end of the T-shaped slider extends out of the first slide groove and is fixedly connected to a first rotating shaft, two limiting rings are fixedly provided on the first rotating shaft, a first through hole is penetrated at one end of the connecting rod, and the first rotating shaft is rotatably connected to the first through hole; the limiting ring limits both sides of the connecting rod.

[0015] Furthermore, a second rotating shaft is fixedly provided on one side of the L-shaped plate, and the end of the connecting rod away from the slide is rotatably connected to the second rotating shaft; a limiting protrusion is fixedly provided on the end of the second rotating shaft away from the L-shaped plate for limiting the connecting rod.

[0016] Furthermore, a second L-shaped slider is extended and fixedly provided at both ends of the bottom of the n-type protective cover, and the second L-shaped slider is slidably connected to the corresponding L-shaped slide groove; two sliding holes are provided on the top of the n-type protective cover, and a sliding rod is slidably connected to the sliding hole; one end of the two sliding rods is commonly fixedly connected to a pressure plate, and the other end of the two sliding rods is commonly fixedly connected to a touch plate; the pressure plate is located inside the n-type protective cover, and the touch plate is located outside the n-type protective cover; a first return spring is sleeved on the sliding rod, and the two ends of the first return spring are respectively fixedly connected to the touch plate and the top of the n-type protective cover.

[0017] Furthermore, the touch panel is provided with anti-slip grooves.

[0018] Furthermore, a limiting groove is provided at one end of the support frame away from the connecting rod, and the limiting groove is connected to the corresponding L-shaped sliding groove; a second through hole is provided on one side of the limiting groove, and a limiting mechanism is installed on the second through hole; the limiting mechanism includes a second sliding rod, and the second sliding rod is slidably connected to the second through hole; a second limiting block is fixedly provided at one end of the second sliding rod, and a stopper is fixedly connected to the other end of the second sliding rod; the stopper is located in the limiting groove, and both sides of the stopper are inclined surfaces; a second return spring is sleeved on the second sliding rod, and the two ends of the second return spring are respectively fixedly connected to the limiting groove and the stopper.

[0019] Furthermore, a first anti-slip rubber strip is fixedly provided on the outer side wall of the first pull tube, and a second anti-slip rubber strip is fixedly provided on the outer side wall of the second pull tube.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The present invention realizes the on-off isolation of the circuit by opening and closing between the static contact and the contact slot. The anti-false-touch mechanism can not only prevent the knife from accidentally rotating and closing, but also can quickly close the switch when it is needed, thereby preventing the slow closing speed from causing unstable closing and generating too many arcs, thereby improving the closing safety; specifically, when the isolating switch is in the off state, the knife is vertical, and under the limit of the connecting rod and the limit spring, the connecting rod supports the knife, thereby effectively preventing the knife from accidentally rotating and closing, and even a slight external force acting on the knife will not cause the knife to accidentally rotate and close;

[0022] When it is necessary to close the circuit breaker, the first pull tube is pulled in the closing direction by the external pull rod, and the switch knife rotates; at this time, one end of the connecting rod pushes the L-shaped plate to make the n-type protective cover slide open, and the n-type protective cover slides open to release the protection of the contact slot; when the switch knife and the connecting rod are in a vertical state, the switch knife continues to rotate and the angle between the connecting rod and the switch knife becomes an obtuse angle. At this time, under the reset force of the limit spring, one end of the connecting rod slides on the first sliding groove of the slide, and the pulling force of the external pull rod can accelerate the rotation of the switch knife, so that the closing can be carried out quickly, preventing the unstable closing from generating too many arcs, thereby improving the safety of the closing.

[0023] (2) The present invention cooperates with the anti-false-touch mechanism and the n-type protective cover, so that when the disconnector is in the open and non-operating state, the n-type protective cover can effectively protect the contact slot from the external harsh environment, and can also quickly close and open the switch; specifically, when it is necessary to close the switch, the L-shaped plate can be pulled open by the external pull rod, and then the n-type protective cover will not block the switch blade during the subsequent closing, so there is no need to remove the n-type protective cover. After the closing is completed, the n-type protective cover can be reset by pulling the second pull tube by the external pull rod; when it is necessary to open the switch, the first pull tube can be pulled horizontally by the external pull rod first, so that the n-type protective cover can be quickly pushed open and the limit spring can be compressed and stored; then the first pull tube is pushed upward to rotate the switch blade. At this time, with the reset force of the limit spring, the switch can be opened quickly, thereby reducing the generation of arcs during opening, preventing equipment aging and degradation, and further improving safety.

[0024] (3) The present invention adopts the structural design of the N-type protective cover. When the isolating switch is closed, the second pull tube is pulled to reset the N-type protective cover to protect the contact slot again. At this time, the contact plate can be pressed by the external pull rod so that the pressure plate can press down the moving contact, thereby making the connection between the moving contact and the contact slot more firmly and tightly, and improving the stability of the closing connection; after pressing, the pressure plate can be separated from the contact with the moving contact under the reset of the first reset spring, preventing the pressure plate from contacting the moving contact for a long time, which will cause the overheating life of the N-type protective cover to be reduced.

[0025] (4) The present invention can quickly replace the n-type protective cover through the structural design of the limiting mechanism. When the n-type protective cover needs to be installed or removed, the n-type protective cover is pushed so that the second L-shaped slider of the n-type protective cover abuts against the inclined surface of the stop block, thereby causing the stop block to compress the second return spring and move it away, so that the stop block can release the limit, so that the limiting mechanism can limit the n-type protective cover without affecting the rapid replacement of the n-type protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an anti-mistouch isolating switch of the present invention;

[0027] Figure 2 A schematic diagram of a dispersed structure of an anti-mistouch isolating switch according to the present invention;

[0028] Figure 3 It is a schematic diagram of a local dispersed structure of an anti-mistouch isolating switch of the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of an anti-accidental-touch mechanism of an anti-accidental-touch isolating switch of the present invention;

[0030] Figure 5 A schematic diagram of a closed state of an anti-mistouch isolating switch according to the present invention;

[0031] Figure 6 This is a schematic diagram of the dispersed structure of an n-type protective cover of an anti-mistouch isolating switch of the present invention;

[0032] Figure 7 The present invention is a schematic diagram of the local dispersed structure of a limit mechanism for preventing accidental touch of an isolating switch.

[0033] The reference numerals are as follows:

[0034] Base-100; insulating column-200; first contact seat-300; static contact-310; second contact seat-400; contact slot-410; switch-500; moving contact-510; anti-mistouch mechanism-600; slide-610; first slide slot-611; T-shaped slider-612; first rotating shaft-613; limiting ring-614; connecting rod-620; first through hole-621; first pull tube-630; first anti-slip rubber strip-631; L-shaped plate-640; first L-shaped slider-641; second rotating shaft-642; limiting protrusion-643; slide rod-6 44; limit spring-645; limit block-646; limit plate-650; support frame-700; L-shaped slide groove-710; limit groove-720; second through hole-721; n-type protective cover-800; second L-shaped slider-810; sliding hole-820; pressure plate-830; sliding rod-840; first return spring-850; touch plate-860; anti-skid pattern-861; second pull tube-870; second anti-skid rubber strip-871; limit mechanism-900; second slide rod-910; second return spring-920; block-930; second limit block-940. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0036] Although the steps in the present invention are arranged with numbers, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" used in this article involves and covers any and all possible combinations of one or more of the associated listed items. Example

[0037] like Figure 1 to Figure 7 As shown, an anti-mistouch disconnector comprises a base 100, the base 100, insulating columns 200 are fixedly installed on both sides of the top of the base 100, a first contact seat 300 is fixedly installed on the top of one insulating column 200, and a second contact seat 400 is fixedly installed on the top of the other insulating column 200; a static contact 310 is fixedly installed on the top of the first contact seat 300, a knife switch 500 is hinged on the static contact 310, and a moving contact 510 is provided at one end of the knife switch 500 away from the static contact 310; a contact notch 410 is fixedly installed on the top of the second contact seat 400;

[0038] Support frames 700 are provided on both sides of the second contact seat 400 , and the support frames 700 are fixedly connected to the top of the insulating column 200 ; and an anti-mis-touch mechanism 600 is commonly connected between both sides of the switch 500 and the corresponding support frames 700 .

[0039] The present invention realizes the on-off isolation of the circuit through the opening and closing of the static contact 310 and the contact slot 410. The anti-false touch mechanism 600 can not only prevent the switch from accidentally rotating to close the circuit, but also can quickly close the circuit when it is needed, thereby preventing the slow closing speed from causing unstable closing and generating excessive arcs, thereby improving the closing safety. A detailed description will be given later.

[0040] Further, the anti-mis-touch mechanism 600 includes a slide 610 and a connecting rod 620. The slide 610 is fixedly connected to one side of the knife 500. A first slide groove 611 is provided on the slide 610. One end of the connecting rod 620 is slidably connected to the first slide groove 611 through a rotating shaft, and the other end of the connecting rod 620 is rotatably connected to one side of the L-shaped plate 640 through a rotating shaft. A first pull tube 630 is fixedly provided at one end of the connecting rod 620 close to the slide 610.

[0041] A first L-shaped slider 641 is fixedly provided at the bottom of the L-shaped plate 640, and an L-shaped slide groove 710 is provided on the support frame 700. The first L-shaped slider 641 is located inside the L-shaped slide groove 710 and is slidably connected to the L-shaped slide groove 710.

[0042] The L-shaped slide grooves 710 on the two support frames 700 are also slidably connected with an n-shaped protective cover 800 . One end of the n-shaped protective cover 800 is movably abutted against the L-shaped plate 640 . Second pull tubes 870 are fixedly provided on both sides of the n-shaped protective cover 800 .

[0043] It is worth noting that the anti-mistaken-touch mechanism 600, the n-type protective cover 800 and related components are made of pressure-resistant insulating materials to ensure their pressure-resistant performance and service life. The specific materials can be selected in conventional settings without further limitation.

[0044] The anti-mistouch mechanism 600 on both sides of the knife switch 500 can also play a stabilizing guiding role in the closing of the knife switch 500, thereby improving the closing stability of the knife switch 500 and reducing the probability of wear and poor contact.

[0045] Furthermore, the top of the support frame 700 is fixedly connected to the limiting plate 650, and the side of the L-shaped plate 640 away from the connecting rod 620 is fixedly connected with a sliding rod 644, and the sliding rod 644 passes through the limiting plate 650 and is slidably connected to the limiting plate 650; a limiting spring 645 is sleeved on the sliding rod 644, and the two ends of the limiting spring 645 are respectively fixedly connected to the L-shaped plate 640 and the limiting plate 650; the end of the sliding rod 644 away from the L-shaped plate 640 is fixedly provided with a limiting block 646.

[0046] Furthermore, when the switch 500 is in a vertical state and one end of the connecting rod 620 is located at the upper end of the slide 610, the limit spring 645 is in a compressed state, and the n-type protective cover 800 can cover the contact slot 410. The n-type protective cover 800 can reduce the impact of the contact slot 410 and its connection under the harsh external environment, prevent the equipment from aging, and avoid poor contact caused by debris on the contact slot 410.

[0047] When the isolating switch of the present invention is in the disconnected state, the knife 500 is vertical, and under the limit of the connecting rod 620 and the limit spring 645, the connecting rod 620 supports the knife 500, thereby effectively preventing the knife from accidentally rotating and closing. When a slight external force acts on the knife 500, it will not cause the knife 500 to accidentally rotate and close.

[0048] When it is necessary to close the circuit breaker, the first pull tube 630 is pulled in the closing direction by the external pull rod, and the switch knife 500 rotates; at this time, one end of the connecting rod 620 pushes the L-shaped plate 640 to slide the n-type protective cover 800, and the n-type protective cover 800 slides away to release the protection of the contact slot 410; when the switch knife 500 and the connecting rod 620 are in a vertical state, the switch knife 500 continues to rotate, which will make the angle between the connecting rod 620 and the switch knife 500 become an obtuse angle. At this time, under the reset force of the limit spring 645, one end of the connecting rod 620 slides on the first slide groove 611 of the slide 610, and the pulling force of the external pull rod can accelerate the rotation of the switch knife 500, so that the closing can be carried out quickly, preventing the unstable closing from generating too many arcs, thereby improving the safety of the closing.

[0049] Furthermore, the first slide groove 611 is a T-shaped slide groove, and a T-shaped slider 612 is slidably connected in the first slide groove 611. One end of the T-shaped slider 612 extends out of the first slide groove 611 and is fixedly connected to a first rotating shaft 613. Two limiting rings 614 are fixedly provided on the first rotating shaft 613. A first through hole 621 is penetrated at one end of the connecting rod 620, and the first rotating shaft 613 is rotatably connected to the first through hole 621; the limiting ring 614 limits both sides of the connecting rod 620.

[0050] Furthermore, a second rotating shaft 642 is fixedly provided on one side of the L-shaped plate 640, and the end of the connecting rod 620 away from the slide 610 is rotatably connected to the second rotating shaft 642; a limiting protrusion 643 is fixedly provided on the end of the second rotating shaft 642 away from the L-shaped plate 640 for limiting the connecting rod 620.

[0051] The present invention cooperates with the anti-false-touch mechanism 600 and the n-type protective cover 800, so that when the disconnector is in the open and non-operating state, the n-type protective cover 800 can effectively protect the contact slot 410 from the external harsh environment, and can also quickly close and open the switch; specifically, when it is necessary to close the switch, the L-shaped plate 640 can be pulled by the external pull rod to push the n-type protective cover 800 away, and then in the subsequent closing, the n-type protective cover 800 will not block the switch blade 500, so there is no need to additionally remove the n-type protective cover 800, and the closing After the gate is closed, the second pull tube 870 is pulled by the external pull rod to reset the n-type protective cover 800; when the gate needs to be opened, the first pull tube 630 is first pulled horizontally by the external pull rod to quickly push open the n-type protective cover 800 and compress the limit spring 645 to accumulate force; then the first pull tube 630 is pushed upward to rotate the gate knife 500. At this time, with the reset force of the limit spring 645, the gate can be opened quickly, thereby reducing the generation of arcs during opening, preventing equipment aging and degradation, and further improving safety.

[0052] Furthermore, a second L-shaped slider 810 is extended and fixedly provided at both ends of the bottom of the n-type protective cover 800, and the second L-shaped slider 810 is slidably connected to the corresponding L-shaped slide groove 710; two sliding holes 820 are opened on the top of the n-type protective cover 800, and a sliding rod 840 is slidably connected to the sliding hole 820; one end of the two sliding rods 840 is commonly fixedly connected to a pressure plate 830, and the other end of the two sliding rods 840 is commonly fixedly connected to a touch plate 860; the pressure plate 830 is located inside the n-type protective cover 800, and the touch plate 860 is located outside the n-type protective cover 800; a first return spring 850 is sleeved on the sliding rod 840, and the two ends of the first return spring 850 are respectively fixedly connected to the touch plate 860 and the top of the n-type protective cover 800.

[0053] Through the structural design of the n-type protective cover 800 of the present invention, when the isolating switch is closed, the second pull tube 870 is pulled to reset the n-type protective cover 800 to protect the contact slot 410 again. At this time, the contact plate 860 can be pressed by an external pull rod, so that the pressure plate 830 can press down the moving contact 510, thereby making the connection between the moving contact 510 and the contact slot 410 more firmly and tightly connected, thereby improving the stability of the closing connection; after pressing, the pressure plate 830 can be separated from the contact with the moving contact 510 under the reset of the first reset spring 850, thereby preventing the pressure plate 830 from contacting the moving contact 510 for a long time, thereby reducing the overheating life of the n-type protective cover 800.

[0054] Furthermore, the touch panel 860 is provided with anti-skid patterns 861. The anti-skid patterns 861 improve the pressing stability during the pressing operation.

[0055] Furthermore, a limiting groove 720 is provided at one end of the support frame 700 away from the connecting rod 620, and the limiting groove 720 is connected to the corresponding L-shaped slide groove 710; a second through hole 721 is provided on one side of the limiting groove 720, and a limiting mechanism 900 is installed on the second through hole 721; the limiting mechanism 900 includes a second slide bar 910, and the second slide bar 910 is slidably connected to the second through hole 721; a second limiting block 940 is fixedly provided at one end of the second slide bar 910, and a stopper 930 is fixedly connected to the other end of the second slide bar 910; the stopper 930 is located in the limiting groove 720, and both sides of the stopper 930 are inclined surfaces; a second return spring 920 is sleeved on the second slide bar 910, and the two ends of the second return spring 920 are respectively fixedly connected to the limiting groove 720 and the stopper 930.

[0056] The present invention can quickly replace the n-type protective cover 800 through the structural design of the limiting mechanism 900. When the n-type protective cover 800 needs to be installed or removed, the n-type protective cover 800 is pushed to make the second L-shaped slider 810 of the n-type protective cover 800 abut against the inclined surface of the stop block 930, so that the stop block 930 compresses the second return spring 920 and moves away, and then the stop block 930 can release the limit; thereby, the limiting mechanism 900 can limit the n-type protective cover 800 without affecting the rapid replacement of the n-type protective cover 800.

[0057] Furthermore, a first anti-skid rubber strip 631 is fixedly disposed on the outer wall of the first pull tube 630, and a second anti-skid rubber strip 871 is fixedly disposed on the outer wall of the second pull tube 870. Both the first anti-skid rubber strip 631 and the second anti-skid rubber strip 871 can improve the control stability during the operation of the external pull rod.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and changes without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An anti-mistouch isolating switch, characterized in that: The invention comprises a base (100), wherein insulating columns (200) are fixedly mounted on both sides of the top of the base (100), wherein a first contact seat (300) is fixedly mounted on the top of one of the insulating columns (200), and a second contact seat (400) is fixedly mounted on the top of the other insulating column (200); a stationary contact (310) is fixedly mounted on the top of the first contact seat (300), a knife switch (500) is hingedly connected to the stationary contact (310), and a moving contact (510) is provided at one end of the knife switch (500) away from the stationary contact (310); and a contact notch (410) is fixedly mounted on the top of the second contact seat (400); Support frames (700) are provided on both sides of the second contact seat (400), and the support frames (700) are fixedly connected to the top of the insulating column (200); and an anti-mis-touch mechanism (600) is commonly connected between both sides of the switch (500) and the corresponding support frames (700); The anti-mis-touch mechanism (600) comprises a slide (610) and a connecting rod (620); the slide (610) is fixedly connected to one side of the knife gate (500); a first slide groove (611) is provided on the slide (610); one end of the connecting rod (620) is slidably connected to the first slide groove (611) via a rotating shaft, and the other end of the connecting rod (620) is rotatably connected to one side of the L-shaped plate (640) via a rotating shaft; a first pull tube (630) is fixedly provided at one end of the connecting rod (620) close to the slide (610); A first L-shaped sliding block (641) is fixedly provided on the bottom of the L-shaped plate (640), an L-shaped sliding groove (710) is provided on the support frame (700), and the first L-shaped sliding block (641) is located inside the L-shaped sliding groove (710) and is slidably connected to the L-shaped sliding groove (710); The L-shaped slide grooves (710) on the two support frames (700) are also slidably connected to an n-shaped protective cover (800), one end of the n-shaped protective cover (800) is movably abutted against the L-shaped plate (640), and second pull tubes (870) are fixedly provided on both sides of the n-shaped protective cover (800); The top of the support frame (700) is fixedly connected to a limit plate (650); a side of the L-shaped plate (640) away from the connecting rod (620) is fixedly connected to a sliding rod (644); the sliding rod (644) passes through the limit plate (650) and is slidably connected to the limit plate (650); a limit spring (645) is sleeved on the sliding rod (644); two ends of the limit spring (645) are respectively fixedly connected to the L-shaped plate (640) and the limit plate (650); and a limit block (646) is fixedly provided on one end of the sliding rod (644) away from the L-shaped plate (640); When the knife switch (500) is in a vertical state and one end of the connecting rod (620) is located at the upper end of the slide (610), the limit spring (645) is in a compressed state, and the n-type protective cover (800) can cover the contact notch (410); The first slide groove (611) is a T-shaped slide groove, and a T-shaped slider (612) is slidably connected in the first slide groove (611), one end of the T-shaped slider (612) extends out of the first slide groove (611) and is fixedly connected to a first rotating shaft (613), two limiting rings (614) are fixedly provided on the first rotating shaft (613), one end of the connecting rod (620) is penetrated by a first through hole (621), and the first rotating shaft (613) is rotatably connected to the first through hole (621); the limiting ring (614) limits the two sides of the connecting rod (620); A second rotating shaft (642) is fixedly provided on one side of the L-shaped plate (640), and one end of the connecting rod (620) away from the sliding bracket (610) is rotatably connected to the second rotating shaft (642); a limiting protrusion (643) is fixedly provided on one end of the second rotating shaft (642) away from the L-shaped plate (640) for limiting the connecting rod (620); A second L-shaped slider (810) is extended and fixedly provided at both ends of the bottom of the n-type protective cover (800), and the second L-shaped slider (810) is slidably connected to the corresponding L-shaped slide groove (710); two sliding holes (820) are provided at the top of the n-type protective cover (800), and a sliding rod (840) is slidably connected to the sliding hole (820); one end of the two sliding rods (840) is fixedly connected to a pressure plate (830), and the other end of the two sliding rods (840) is fixedly connected to a touch plate (860); the pressure plate (830) is located inside the n-type protective cover (800), and the touch plate (860) is located outside the n-type protective cover (800); a first return spring (850) is sleeved on the sliding rod (840), and the two ends of the first return spring (850) are respectively fixedly connected to the touch plate (860) and the top of the n-type protective cover (800).

2. The anti-mistouch isolating switch according to claim 1, characterized in that: The touch panel (860) is provided with anti-slip grooves (861).

3. The anti-mistouch isolating switch according to claim 1, characterized in that: A limiting groove (720) is provided at one end of the support frame (700) away from the connecting rod (620), and the limiting groove (720) is connected to the corresponding L-shaped sliding groove (710); a second through hole (721) is provided on one side of the limiting groove (720), and a limiting mechanism (900) is installed on the second through hole (721); the limiting mechanism (900) includes a second sliding rod (910), and the second sliding rod (910) is slidably connected to the second through hole (721); A second limiting block (940) is fixedly provided at one end of the second sliding rod (910), and a stopper (930) is fixedly connected to the other end of the second sliding rod (910); the stopper (930) is located in the limiting groove (720), and both sides of the stopper (930) are inclined surfaces; a second return spring (920) is sleeved on the second sliding rod (910), and both ends of the second return spring (920) are fixedly connected to the limiting groove (720) and the stopper (930), respectively.

4. The anti-mistouch isolating switch according to claim 1, characterized in that: A first anti-slip rubber strip (631) is fixedly provided on the outer side wall of the first pull tube (630), and a second anti-slip rubber strip (871) is fixedly provided on the outer side wall of the second pull tube (870).

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