An intelligent high voltage load switch

Abstract

The present invention relates to the technical field of load switches, and specifically to an intelligent high-voltage load switch, wherein an operating mechanism is connected to both sides of a load switch body, the operating mechanism comprising an operating mechanism seat, a limit mechanism is telescopically connected on the operating mechanism seat, and when the limit mechanism is in an extended state, it is used to abut an operating rod and limit the operating rod from rotating to open and close the switch, and an airbag structure is connected to the rear side of the limit mechanism. When operating on either side of the load switch body, a compressed air ball on the operating rod on that side is held and pressed, and air is blown into the airbag structure through a first compressed air pipe to push the limit mechanism into a retracted state. If the load switch body itself disconnects the circuit and opens the switch for the purpose of protecting the circuit, air is blown into the airbag structure through one end of a compressed air piston cylinder through a second compressed air pipe to push the limit mechanism into a retracted state, thereby playing the same unlocking function and being easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of load switches, and in particular to an intelligent high-voltage load switch. Background Art

[0002] A load switch is a switching device between a circuit breaker and an isolating switch. A common type of load switch is a compressed air load switch, which is used in combination with a fuse and is suitable for use in a three-phase power distribution system as a control and protection for power equipment such as transformers, cables, and overhead lines. Existing load switches, such as a wall-mounted compressed air load switch disclosed in CN218585824U and a wall-mounted compressed air load switch disclosed in CN202650884U, all support manual operation, and are mostly operated on one side, which is inconvenient to use. In addition, considering that the operating opening and closing action of the load switch has a significant impact on the entire power distribution system, there are also certain safety hazards. However, most of the existing manually operated compressed air load switches are not designed with corresponding safety limit mechanisms to prevent accidental touch, so as to avoid accidental or erroneous operation of the operating lever. In particular, for load switches that require a double-sided operation mode, there is still a certain distance between the operating levers on both sides. Even if a safety limit mechanism is provided, there is still a problem in how to simultaneously unlock the safety limit mechanisms on both sides when operating on one side, which leads to the existing load switches. There is still room for further optimization and improvement. Summary of the invention

[0003] In view of this, the purpose of the present invention is to propose an intelligent high-voltage load switch to solve the problem that the existing high-voltage load switch lacks sufficient safety limit function to prevent accidental touch and is inconvenient to use, especially when double-sided operation is required.

[0004] Based on the above purpose, the present invention provides an intelligent high-voltage load switch, including a load switch body, and operating mechanisms are connected to both sides of the load switch body for manually operating the opening and closing of the switch:

[0005] The operating mechanism includes an operating mechanism seat, an operating shaft is rotatably connected to the operating mechanism seat, an operating rod is connected to the outer side of the operating shaft, a vertical connecting rod is transmission-connected to the operating shaft, a top end of the vertical connecting rod is transmission-connected to a horizontal connecting rod, and one end of the horizontal connecting rod is rotatably connected to both sides of the load switch body;

[0006] A limit mechanism is provided on the telescopic connection of the operating mechanism seat. When the limit mechanism is in the extended state, it is used to abut the operating rod and limit the operating rod from rotating to open and close the switch. When the limit mechanism is in the retracted state, the operating rod is separated from the limit mechanism.

[0007] An airbag structure is connected to the rear side of the limiting mechanism, and a pressure ball is provided on the operating rod. One end of the pressure ball is connected to a first pressure air pipe, and one end of the first pressure air pipe is connected to the airbag structure. When the pressure ball is pressed, air is blown into the airbag structure through the first pressure air pipe to push the limiting mechanism into a retracted state. One end of the pressure piston cylinder of the load switch body is connected to a second pressure air pipe, and one end of the second pressure air pipe is connected to the airbag structure. A one-way valve for unidirectional air intake into the airbag structure is provided on the second pressure air pipe. When the load switch body is opened, air is blown into the airbag structure through the second pressure air pipe to push the limiting mechanism into a retracted state.

[0008] Preferably, the vertical connecting rod and the transverse connecting rod are designed as telescopic structures, and a rod bearing seat is provided on the transverse connecting rod.

[0009] Preferably, the operating rod is located on the side of the operating shaft away from the load switch body as a long rod section, the operating rod is located on the side of the operating shaft close to the load switch body as a short rod section, the air bag is located on the long rod section, the first air bag structure is laid along the length direction of the long rod section and is connected to the side of the air bag structure away from the load switch body, and the second air bag structure is connected to the side of the air bag structure close to the load switch body.

[0010] Preferably, the limiting mechanism includes a ball seat slidably inserted in a plane direction perpendicular to the operating mechanism seat, and a ball member rollingly connected to the ball seat. When the operating rod is operated to open or close the switch, it abuts against the ball member on one side.

[0011] Preferably, the rear side of the operating mechanism seat is connected to a shell member, the rear side of the shell member is connected to an elastic member, the front end of the elastic member is connected to a cross bar, the two ends of the cross bar are respectively connected to the ball seats on both sides, the airbag structure is connected to the middle front side of the cross bar, and includes a telescopic channel, the two sides of the telescopic channel are respectively connected to a first airbag connected to the first compressed air pipe, and a second airbag connected to the second compressed air pipe.

[0012] Preferably, the telescopic channel includes a fixed cylinder fixedly connected to the inner front side of the shell member, and a movable cylinder telescopically connected to the rear side of the fixed cylinder. The movable cylinder is connected to the cross bar. When the first airbag or the second airbag is inflated, the cross bar is pushed backward and the elastic member is compressed.

[0013] Preferably, a pressure-limiting relief valve is provided on the second compressed air pipe. When the second compressed air pipe inflates air into the airbag structure, the pressure ball is pressed to make the first airbag compress the second airbag, and exhaust air to the outside through the pressure-limiting relief valve until the pressure ball is released, and the elastic part pushes the limiting mechanism to extend and reset.

[0014] Preferably, a limiting plate is fixedly provided in the shell at a rear side of the cross bar, and air is inflated in the first airbag or the second airbag so that when the limiting mechanism is in a retracted state, the cross bar abuts against the limiting plate.

[0015] Preferably, an air replenishing pump for replenishing air to the first airbag and the second airbag is provided on the operating rod, so that when the limiting mechanism is in the retracted state, the operating rod is completely separated from the limiting mechanism.

[0016] Preferably, a hollow handle is sleeved on the operating rod, and the end of the hollow handle facing the ball pressure ball is open, and the end of the hollow handle facing away from the ball pressure ball is slidably connected to the operating rod, and the open end of the hollow handle is slidably sleeved on the outside of the ball pressure ball to push the limit mechanism into a retracted state.

[0017] The beneficial effects of the present invention are as follows: an operating mechanism is connected to both sides of the load switch body, the operating mechanism includes an operating mechanism seat, a limit mechanism is telescopically connected on the operating mechanism seat, when the limit mechanism is in an extended state, it is used to abut the operating rod and limit the operating rod from rotating to open and close the switch, when the limit mechanism is in a retracted state, the operating rod is separated from the limit mechanism, an airbag structure is connected to the rear side of the limit mechanism, a pressure ball is provided on the operating rod, one end of the pressure ball is connected to a first pressure air pipe, one end of the first pressure air pipe is connected to the airbag structure, when operating on either side of the load switch body, the pressure ball on the operating rod on that side is held When the compressed air ball on that side is pressed hard, air is blown into the airbag structure through the first compressed air pipe to push the limit mechanism into a retracted state. If the load switch body itself automatically disconnects the circuit for the purpose of protecting the circuit, a second compressed air pipe is connected to one end of the compressed air piston cylinder, and one end of the second compressed air pipe is connected to the airbag structure. A one-way valve for one-way air intake into the airbag structure is provided on the second compressed air pipe. Therefore, when the load switch body automatically opens the circuit, part of the compressed air can be blown into the airbag structure through the second compressed air pipe to push the limit mechanism into a retracted state, which has the same unlocking function and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the load switch of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the load switch of the present invention when it starts to open;

[0021] Figure 3 It is a schematic structural diagram of the hollow handle of the present invention;

[0022] Figure 4It is a structural schematic diagram of the operating lever of the present invention when it is rotated down to the right position;

[0023] Figure 5 It is a schematic diagram of the structure when the hollow handle of the present invention is sleeved on the outside of the pressure ball;

[0024] Figure 6 It is a schematic diagram of the structure of the first airbag and the second airbag in the initial state of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the first airbag of the present invention when it is inflated;

[0026] Figure 8 It is a structural schematic diagram of the telescopic channel of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the second airbag of the present invention when it is inflated;

[0028] Fig.10 It is a structural schematic diagram of the pressure-limiting relief valve of the present invention;

[0029] Fig.11 It is a schematic structural diagram of the first airbag of the present invention when the second airbag is gradually compressed.

[0030] The markings in the figure are:

[0031] 100. Load switch body; 1. Operating mechanism seat; 2. Operating shaft; 3. Operating rod; 31. Long rod section; 32. Short rod section; 4. Vertical connecting rod; 5. Horizontal connecting rod; 50. Rod bearing seat; 6. Limiting mechanism; 61. Ball seat; 62. Ball member; 7. Air bag structure; 70. Telescopic channel; 701. Fixed cylinder; 702. Movable cylinder; 71. First air bag; 72. Second air bag; 8. Compressed air ball; 9. First compressed air pipe; 10. Second compressed air pipe; 11. One-way valve; 12. Shell member; 13. Elastic member; 14. Cross bar; 15. Pressure limiting relief valve; 16. Limiting plate; 17. Air supply pump; 18. Hollow handle. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, an intelligent high-voltage load switch includes a load switch body 100, and operating mechanisms are connected on both sides of the load switch body 100 for manually operating the opening and closing of the switch. The operating mechanism includes an operating mechanism seat 1, an operating shaft 2 is rotatably connected to the operating mechanism seat 1, an operating rod 3 is connected to the outer side of the operating shaft 2, a vertical connecting rod 4 is transmission-connected to the operating shaft 2, and a horizontal connecting rod 5 is transmission-connected to the top of the vertical connecting rod 4, and one end of the horizontal connecting rod 5 is rotationally connected to both sides of the load switch body 100. A limit mechanism 6 is telescopically connected on the operating mechanism seat 1. When the limit mechanism 6 is in an extended state, it is used to abut the operating rod 3 and limit the operating rod 3 from rotating the opening and closing of the switch. When the limit mechanism 6 is in a retracted state, the operating rod 3 is separated from the limit mechanism 6. An airbag structure 7 is connected to the rear side of the limiting mechanism 6, and a pressure ball 8 is provided on the operating rod 3. One end of the pressure ball 8 is connected to a first compressed air pipe 9, and one end of the first compressed air pipe 9 is connected to the airbag structure 7. When the pressure ball 8 is pressed, air is blown into the airbag structure 7 through the first compressed air pipe 9 to push the limiting mechanism 6 into a retracted state. One end of the compressed air piston cylinder of the load switch body 100 is connected to a second compressed air pipe 10, and one end of the second compressed air pipe 10 is connected to the airbag structure 7. A one-way valve 11 for one-way air intake into the airbag structure 7 is provided on the second compressed air pipe 10. When the load switch body 100 is opened, air is blown into the airbag structure 7 through the second compressed air pipe 10 to push the limiting mechanism 6 into a retracted state.

[0035] The present invention is based on the basic structure of the existing conventional high-voltage load switch, including a load switch body 100, especially for the common compressed air load switch, the two sides of the load switch body 100 are connected with an operating mechanism for manual operation of opening and closing, and are designed as a double-sided operation mode, which is more convenient to operate. The operating mechanism includes an operating mechanism seat 1, the operating mechanism seat 1 is used for fixed use, the operating mechanism seat 1 is rotatably connected with an operating shaft 2, the outer side of the operating shaft 2 is connected with an operating rod 3, the operating shaft 2 is transmission-connected with a vertical connecting rod 4, the top of the vertical connecting rod 4 is transmission-connected with a horizontal connecting rod 5, one end of the horizontal connecting rod 5 is rotationally connected to the load switch body 100, and the load switch body 100 is connected to the load switch body 100. The load switch body 100 is connected to both sides of the load switch body 100, so that the load switch body 100 can be manually operated to open and close by rotating the operating rod 3 up and down. Specifically, the operating shaft 2 is rotatably connected to a lower crank arm, one end of the lower crank arm is rotatably connected to a vertical connecting rod 4, the top of the vertical connecting rod 4 is connected to an upper crank arm, and one end of the upper crank arm is rotatably connected to a horizontal connecting rod 5 to realize the rotation of the transmission horizontal connecting rod 5. More preferably, the vertical connecting rod 4 and the horizontal connecting rod 5 are designed as a telescopic structure, such as an existing telescopic rod. The horizontal connecting rod 5 is provided with a rod bearing seat 50, and the rod bearing seat 50 is fixedly arranged, which is conducive to the efficient and stable rotation of the horizontal connecting rod 5;

[0036] The operating mechanism seat 1 is telescopically connected with a limit mechanism 6. When the limit mechanism 6 is in the extended state, Figure 1 As shown, it is used to abut the operating rod 3 and limit the operating rod 3 from rotating to open and close the switch, playing a safety limit role to prevent accidental touch. When the limit mechanism 6 is in the retracted state, as shown in FIG. Figure 2As shown, the operating rod 3 is separated from the limiting mechanism 6 to allow the operating rod 3 to perform normal opening and closing operations. The rear side of the limiting mechanism 6 is connected to an airbag structure 7, and a pressure ball 8 is provided on the operating rod 3. One end of the pressure ball 8 is connected to a first compressed air pipe 9, and one end of the first compressed air pipe 9 is connected to the airbag structure 7. Therefore, when operating on either side of the load switch body 100, when holding the pressure ball 8 on the operating rod 3 on that side and pressing the pressure ball 8 on that side, air is inflated into the airbag structure 7 through the first compressed air pipe 9 to push the limiting mechanism 6 into a retracted state, thereby pushing the operating rod 3 on that side to close the switch, and under the transmission effect of the main shaft of the opening and closing switch in the load switch body 100, the operating rod 3 on the other side will also rotate synchronously. If the load switch body 100 When the load switch body 100 opens the circuit by itself for the purpose of protecting the circuit, the compressed air piston cylinder of the compressed air load switch body 100 will compress the air to blow out the arc through the nozzle, thereby playing a simple arc extinguishing role. A second compressed air pipe 10 is connected to one end of the compressed air piston cylinder, and one end of the second compressed air pipe 10 is connected to the airbag structure 7. The second compressed air pipe 10 is provided with a one-way valve 11 for one-way air intake to the airbag structure 7. Therefore, when the load switch body 100 opens the circuit by itself, part of the compressed air can be blown into the airbag structure 7 through the second compressed air pipe 10 to push the limit mechanism 6 into a retracted state. If the load switch body 100 is manually operated to open the circuit, it can also be done by pressing the compressed air ball 8 on one side, which plays the same unlocking function and is easy to operate.

[0037] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 6 As shown, the operating rod 3 is located on the side of the operating shaft 2 away from the load switch body 100 as a long rod section 31, the operating rod 3 is located on the side of the operating shaft 2 close to the load switch body 100 as a short rod section 32, the air bag 8 is located on the long rod section 31, the first compressed air pipe 9 is laid along the length direction of the long rod section 31, and is connected to the side of the air bag structure 7 away from the load switch body 100, and the second compressed air pipe 10 is connected to the side of the air bag structure 7 close to the load switch body 100.

[0038] In an embodiment of the present invention, Figure 1 , Figure 2 As shown, the limiting mechanism 6 includes a ball seat 61 which is slidably inserted in a plane direction perpendicular to the operating mechanism seat 1, and a ball member 62 which is rollingly connected to the ball seat 61. When the operating rod 3 is operated to open or close the switch, it abuts against the ball member 62 on one side. The rolling resistance of the ball member 62 is small, which is conducive to efficient separation from the operating rod 3.

[0039] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, the rear side of the operating mechanism seat 1 is connected to a shell member 12, and the rear side of the shell member 12 is connected to an elastic member 13, and the front end of the elastic member 13 is connected to a cross bar 14, and the two ends of the cross bar 14 are respectively connected to the ball seats 61 on both sides. Specifically, the elastic member 13 can adopt existing conventional elastic components such as springs, and the two ends of the cross bar 14 can be connected to the ball seats 61 on both sides through vertically connected connecting rods. The side end of the shell member 12 is provided with a through groove for the cross bar 14 to move horizontally, and a through groove for the first compressed air pipe 9 and the second compressed air pipe 10 is passed through, the airbag structure 7 is connected to the middle front side of the cross bar 14, and includes a telescopic channel 70. The telescopic channel 70 includes a fixed cylinder 701 fixedly connected to the inner front side of the shell member 12, and a movable cylinder 702 telescopically connected to the rear side of the fixed cylinder 701. The movable cylinder 702 is connected to the cross bar 14, similar to the existing common telescopic cylinder structure. The two sides of the telescopic channel 70 are respectively connected to a first airbag 71 connected to the first compressed air pipe 9, and a second airbag 72 connected to the second compressed air pipe 10.

[0040] Preferably, the first airbag 71 and the second airbag 72 can both adopt the existing conventional elastic airbag structure, and the first compressed air pipe 9 and the second compressed air pipe 10 can adopt the existing conventional hard pipe structure. Figure 6 As shown, the first airbag 71 and the second airbag 72 occupy the left and right halves of the space in the telescopic channel 70 respectively, and the middle side wall where the first airbag 71 and the second airbag 72 contact each other can be designed as a hard tube wall, and except for the hard tube wall and the part connected to the compressed air pipe, they are all stretchable elastic airbag wall structures. The first airbag 71, the second airbag 72 and the compressed air ball 8, the first compressed air pipe 9, and the second compressed air pipe 10 are filled with gaseous media such as air, but they are not enough to push the compression elastic member 13 to drive the limit mechanism 6 to retract. Only when the compressed air ball 8 is pressed, as shown in FIG. Figure 7 As shown, the first airbag 71 is inflated and the pressure increases, forcing the first airbag 71 to expand, push the crossbar 14 backward, and compress the elastic member 13, driving the limit mechanism 6 to retract, or when the load switch body 100 itself actively opens, as shown in FIG. Fig. 9 As shown, air is inflated into the airbag structure 7 through the second compressed air pipe 10, and the pressure in the second airbag 72 increases, forcing the second airbag 72 to extend, push the cross bar 14 backward, and compress the elastic member 13, driving the limit mechanism 6 to retract, and after the airbag is deployed, it pushes the middle position of the cross bar 14, which is conducive to efficient and stable movement.

[0041] In an embodiment of the present invention, Fig.10 , Fig.11As shown, the second compressed air pipe 10 is provided with a pressure-limiting overflow valve 15. When the second compressed air pipe 10 inflates air into the airbag structure 7, as shown in FIG. Fig.10 As shown, the limiting mechanism 6 is retracted, but since the second airbag 72 cannot release air to reset, the limiting mechanism 6 remains in the retracted state and cannot play a subsequent limiting role. At this time, the balloon 8 can be pressed hard, such as Fig.11 As shown, the first airbag 71 gradually compresses the second airbag 72 and exhausts the air outward through the pressure-limiting relief valve 15 until the airbag 8 is released, and the elastic member 13 pushes the limiting mechanism 6 to extend and reset. If the limiting mechanism 6 is still not sufficient to reset, it means that the air pressure in the second airbag 72 is still too high. At this time, the airbag 8 can be further pressed.

[0042] In an embodiment of the present invention, Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 As shown, a limit plate 16 is fixedly provided at the rear side position of the cross bar 14 in the shell member 12, and a hole is opened in the middle position of the limit plate 16 for the elastic member 13 to pass through. When the first air bag 71 or the second air bag 72 is inflated so that when the limit mechanism 6 is in a retracted state, the cross bar 14 abuts against the limit plate 16 to avoid over-compression of the elastic member 13, and when the second air bag 72 needs to be reset, it is only necessary to press the air ball 8 until it can no longer be pressed. At this time, the air pressure in the second air bag 72 will just return to its initial state.

[0043] In an embodiment of the present invention, Fig.10 , Fig.11 As shown, an air replenishing pump 17 for replenishing air to the first airbag 71 and the second airbag 72 is provided on the operating rod 3. If the airbag structure 7 leaks to a certain extent after long-term use, the possibility of complete deflation is extremely small. For example, when the load switch body 100 itself actively opens the gate, a small amount of air leaks from the second airbag 72 is not enough to push the limiting mechanism 6 to fully retract, that is, the ball member 62 is not completely separated from the operating rod 3. At this time, although the operating rod 3 is turned down to complete the opening action, it is not turned down to the right position. In order to avoid further leakage and failure, at this time, air is replenished into the second airbag 72 through the air replenishing pump 17 to completely separate the operating rod 3 from the ball member 62. Similarly, when the operating rod 3 is turned up to close the gate, if a small amount of air leaks from the first airbag 71, it is not enough to push the limiting mechanism 6 to fully retract, that is, the ball member 62 is not completely separated from the operating rod 3. At this time, the action of pushing up to close the gate cannot be completed, and air needs to be replenished into the first airbag 71 through the air replenishing pump 17 to completely separate the operating rod 3 from the ball member 62.

[0044] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a hollow handle 18 is sleeved on the operating rod 3, and the end of the hollow handle 18 facing the balloon 8 is open, and the end of the hollow handle 18 facing away from the balloon 8 is slidably connected to the operating rod 3. Specifically, a through hole is provided at the end of the hollow handle 18 facing away from the balloon 8, and the operating rod 3 is slidably connected through the through hole. A limit pin may also be provided on the operating rod 3 for abutting against the outside of the through hole. Preferably, the end of the hollow handle 18 facing the balloon 8 is open. In normal use, Figure 2 As shown, the hollow handle 18 does not contact the pressure ball 8. If the limiting mechanism 6 is not required to function, the hollow handle 18 can be slidably moved. Figure 5 As shown, the open end of the hollow handle 18 is sleeved on the outside of the pressure ball 8. At this time, the pressure ball 8 is in a normally pressed state, that is, the limiting mechanism 6 remains in a retracted state. At this time, the pressure ball 8 elastically presses against the inner side of the hollow handle 18, which is also conducive to the positioning of the hollow handle 18.

[0045] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

Claims

1. An intelligent high-voltage load switch, comprising a load switch body (100), wherein both sides of the load switch body (100) are connected with operating mechanisms for manually operating the switch opening and closing, characterized in that: The operating mechanism comprises an operating mechanism seat (1), an operating shaft (2) is rotatably connected to the operating mechanism seat (1), an operating rod (3) is connected to the outer side of the operating shaft (2), a vertical connecting rod (4) is transmission-connected to the operating shaft (2), a top end of the vertical connecting rod (4) is transmission-connected to a horizontal connecting rod (5), and one end of the horizontal connecting rod (5) is rotatably connected to two sides of the load switch body (100); A limiting mechanism (6) is telescopically connected to the operating mechanism seat (1); when the limiting mechanism (6) is in an extended state, it is used to abut against the operating rod (3) and limit the operating rod (3) from rotating to open and close the switch; when the limiting mechanism (6) is in a retracted state, the operating rod (3) is separated from the limiting mechanism (6); The rear side of the limiting mechanism (6) is connected to an airbag structure (7), and the operating rod (3) is provided with a compressed air ball (8). One end of the compressed air ball (8) is connected to a first compressed air pipe (9), and one end of the first compressed air pipe (9) is connected to the airbag structure (7). When the compressed air ball (8) is pressed, air is blown into the airbag structure (7) through the first compressed air pipe (9) to push the limiting mechanism (6) into a retracted state. One end of the compressed air piston cylinder of the load switch body (100) is connected to a second compressed air pipe (10), and one end of the second compressed air pipe (10) is connected to the airbag structure (7). A one-way valve (11) for one-way air intake into the airbag structure (7) is provided on the second compressed air pipe (10). When the load switch body (100) is opened, air is blown into the airbag structure (7) through the second compressed air pipe (10) to push the limiting mechanism (6) into a retracted state.

2. The intelligent high-voltage load switch according to claim 1, characterized in that: The vertical connecting rod (4) and the horizontal connecting rod (5) are designed as telescopic structures, and a rod bearing seat (50) is provided on the horizontal connecting rod (5).

3. The intelligent high-voltage load switch according to claim 1, characterized in that: The operating rod (3) is located on the side of the operating shaft (2) away from the load switch body (100) as a long rod section (31), and the operating rod (3) is located on the side of the operating shaft (2) close to the load switch body (100) as a short rod section (32). The air-compression ball (8) is located on the long rod section (31), and the first air-compression air pipe (9) is laid along the length direction of the long rod section (31) and is connected to the side of the air-bag structure (7) away from the load switch body (100), and the second air-compression air pipe (10) is connected to the side of the air-bag structure (7) close to the load switch body (100).

4. The intelligent high-voltage load switch according to claim 1, characterized in that: The limiting mechanism (6) comprises a ball seat (61) which is slidably inserted in a plane direction perpendicular to the operating mechanism seat (1), and a ball member (62) which is rollingly connected to the ball seat (61); when the operating rod (3) is operated to open or close the switch, it abuts against the ball member (62) on one side.

5. The intelligent high-voltage load switch according to claim 4, characterized in that: The rear side of the operating mechanism seat (1) is connected to a shell member (12), the rear side of the shell member (12) is connected to an elastic member (13), the front end of the elastic member (13) is connected to a cross bar (14), the two ends of the cross bar (14) are respectively connected to ball seats (61) on both sides, the air bag structure (7) is connected to the middle front side of the cross bar (14), and includes a telescopic channel (70), the two sides of the telescopic channel (70) are respectively connected to a first air bag (71) connected to a first compressed air pipe (9), and a second air bag (72) connected to a second compressed air pipe (10).

6. The intelligent high-voltage load switch according to claim 5, characterized in that: The telescopic channel (70) includes a fixed cylinder (701) fixedly connected to the inner front side of the shell member (12), and a movable cylinder (702) telescopically connected to the rear side of the fixed cylinder (701). The movable cylinder (702) is connected to the cross bar (14). When the first air bag (71) or the second air bag (72) is inflated, the cross bar (14) is pushed backward and the elastic member (13) is compressed.

7. The intelligent high-voltage load switch according to claim 5, characterized in that: The second compressed air pipe (10) is provided with a pressure-limiting relief valve (15). When the second compressed air pipe (10) inflates air into the airbag structure (7), the pressure ball (8) is pressed so that the first airbag (71) compresses the second airbag (72), and exhausts air to the outside through the pressure-limiting relief valve (15), until the pressure ball (8) is released, and the elastic member (13) pushes the limiting mechanism (6) to extend and reset.

8. The intelligent high-voltage load switch according to claim 7, characterized in that: A limiting plate (16) is fixedly provided in the shell member (12) at a rear side position of the cross bar (14), and air is inflated in the first air bag (71) or the second air bag (72) so that when the limiting mechanism (6) is in a retracted state, the cross bar (14) abuts against the limiting plate (16).

9. The intelligent high-voltage load switch according to claim 5, characterized in that: The operating rod (3) is provided with an air replenishing pump (17) for replenishing air to the first airbag (71) and the second airbag (72), so that when the limiting mechanism (6) is in a retracted state, the operating rod (3) and the limiting mechanism (6) are completely separated.

10. The intelligent high-voltage load switch according to claim 5, characterized in that: The operating rod (3) is sleeved with a hollow handle (18), and the end of the hollow handle (18) facing the pressure ball (8) is designed to be open. The end of the hollow handle (18) facing away from the pressure ball (8) is slidably connected to the operating rod (3), and the open end of the hollow handle (18) is slidably sleeved outside the pressure ball (8) to push the limiting mechanism (6) into a retracted state.

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