A load switch operating handle displacement device and method of use

Abstract

This invention discloses a displacement device for a load switch operating handle and its usage method. The displacement device includes a connecting mechanism for engaging with the handle shaft on the load switch body. A steel wire rope is connected to the connecting mechanism, and a displacement seat is provided at the other end of the steel wire rope. A rotating shaft is rotatably mounted on the displacement seat, and an operating handle and a fixed seat are respectively fixedly connected to both ends of the rotating shaft. A take-up and release rod is rotatably mounted between the inner walls of the fixed seat, and the steel wire rope is wound around the outer wall of the take-up and release rod. A limit mechanism is fixedly provided on the lower side wall of the fixed seat. In this invention, the length of the steel wire rope can be adjusted according to actual needs to achieve the purpose of adjusting the position of the operating handle, thereby making the installation position of the operating handle unrestricted and the displacement range of this device wide, thus improving the practicality of this device.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, and more specifically, to a displacement device for a load switch operating handle and its usage method. Background Technology

[0002] A load switch is a switching device that falls between a circuit breaker and a disconnector. It has a simple arc-extinguishing device and can interrupt rated load current and a certain overload current, but it cannot interrupt short-circuit current. Load switches are mainly used for breaking and closing load currents. They can also be used in conjunction with high-voltage fuses to replace circuit breakers. Due to their ease of use and reasonable price, load switches are widely used in 10kV distribution network systems. The proper selection of load switches in the design is of great significance for ensuring the safe and reliable operation of the power grid. In actual installation, to make operating the load switch handle more convenient, a shifting device is used to move the handle to a position that facilitates opening and closing.

[0003] The prior art CN215221286U discloses a displacement device for the operating handle of a load switch, which solves the problems of inconvenient operation of load switches and low space utilization of distribution boxes in the prior art. By setting a linkage transmission mechanism between the operating handle and the load switch body, the operating handle can drive the load switch body to move through the linkage transmission mechanism, so as to realize the separate design of the operating handle and the load switch body, which makes it easy to adjust the position of the operating handle and the load switch body, making operation convenient, and at the same time improving the space utilization of the distribution box.

[0004] However, this device has its shortcomings. The dimensions of the fixed mounting plate and connecting rod are fixed, and during installation and use, it can only be moved within a fixed range. It is not suitable for arbitrarily adjustable positions, and the range of movement is limited, resulting in poor practicality. In view of this, we propose a displacement device for the load switch operating handle and its usage method. Summary of the Invention

[0005] To overcome a series of defects in the existing technology, the purpose of this patent is to provide a displacement device for the operating handle of a load switch, including a connecting mechanism 2 for engaging with the handle shaft on the load switch body 1. The connecting mechanism 2 is characterized by having a steel wire rope 8 connected to it, with a displacement seat 3 at the other end of the steel wire rope 8; a rotating shaft 4 is rotatably mounted on the displacement seat 3, with an operating handle 5 and a fixed seat 6 fixedly connected to both ends of the rotating shaft 4; a take-up / release rod 7 is rotatably mounted between the inner walls of the fixed seat 6, and the steel wire rope 8 is wound around the outer wall of the take-up / release rod 7; a limit mechanism 9 is fixedly mounted on the lower side wall of the fixed seat 6.

[0006] Preferably, a protective cover 301 is fixedly connected to the outer wall of the shifting seat 3 near the operating handle 5. Two positioning holes 302 are opened on the inner wall of the protective cover 301. A square groove is opened at one end of the operating handle 5 near the protective cover 301. The lower side of the square groove is connected to a limiting groove, and the upper side of the square groove is connected to a square through groove. A positioning rod 501 is slidably limited in the square groove. The outer end of the positioning rod 501 is movably inserted into the inner wall of the positioning hole 302. The inclined guide block 502 is slidably limited in the limiting groove. A pressing block is slidably limited in the square through groove. A pressure rod 504 is fixedly connected to the upper end of the pressing block. The outer wall of the inner end of the positioning rod 501 located in the square groove is fixedly connected to the inclined guide block 502. The other end of the inclined guide block 502 is fixedly connected to the inner wall of the limiting groove through a spring 503. The outer wall of the lower end of the pressing block is slidably in contact with the inclined surface of the inclined guide block 502.

[0007] Preferably, an arc-shaped groove is provided on one side of the rotating shaft 4, and an arc-shaped plate is slidably limited in the arc-shaped groove. A connecting plate is fixedly connected to the other end of the arc-shaped plate. A square through hole communicating with the arc-shaped groove is provided at the inner end of the rotating shaft 4. A limit rod 401 is slidably fitted on the inner wall of the square through hole. The outer end of the limit rod 401 is fixedly connected to the arc-shaped plate. A connecting shaft is fixedly connected to the inner end of the limit rod 401. A plurality of annular teeth 402 are fixedly sleeved on the outer wall of the middle part of the connecting shaft. A limit block is fixedly connected to the inner end of the connecting shaft.

[0008] Preferably, the retractable rod 7 has a limiting hole 701 at one end near the rotating shaft 4, which matches the limiting block and the annular tooth 402. The inner wall of the limiting hole 701 is movably engaged with the outer wall of one end of the limiting rod 401.

[0009] Preferably, the limiting mechanism 9 includes a sleeve 901, which is fixedly connected to the bottom surface of the fixed base 6. A snap-fit ​​seat is fixedly provided on the inner wall of the sleeve 901. A limiting arc-shaped groove is formed on one side of the outer wall of the snap-fit ​​seat. An arc-shaped snap-fit ​​block that matches the limiting arc-shaped groove is movably snapped onto the arc-shaped groove. The arc-shaped snap-fit ​​block is in frictional contact with the outer wall of the wire rope 8. An air injection pipe 902 is fixedly provided on one side of the outer wall of the sleeve 901. The other end of the air injection pipe 902 is connected to a connecting pipe. A piston is slidably provided in the air injection pipe 902. A compression rod 903 is fixedly connected to the inner end of the piston. The other end of the compression rod 903 slides through the air injection pipe 902 and the sleeve 901, extends into the interior of the sleeve 901, and is fixedly connected to the arc-shaped snap-fit ​​block.

[0010] Preferably, a piston chamber is provided inside the fixed seat 6 near the rotating shaft 4, and a piston plate 601 is slidably fitted on the inner wall of the piston chamber. The inner wall of one side of the piston chamber is connected to the inner wall of the air injection pipe 902 through a connecting pipe.

[0011] Preferably, a lead screw 602 is threadedly connected to the top surface of the piston plate 601. The upper end of the lead screw 602 extends through the inner wall of the piston cavity to the outer wall and is rotatably connected to it. A gear 603 is fixedly connected to the outer wall of the other end of the lead screw 602. The gear 603 meshes with the annular gear 402 for transmission.

[0012] Preferably, the connecting mechanism 2 includes a U-shaped clamp 201, the lower outer wall of the U-shaped clamp 201 is fixedly connected to one end of the wire rope 8, and an mounting base is fixedly provided on the upper outer wall of the U-shaped clamp 201, and an electric push rod 202 is connected to the mounting base.

[0013] Preferably, the upper outer wall of the U-shaped lever 201 has a through groove, the outer wall of the output end of the electric push rod 202 is rotatably connected to a hinge seat, the hinge seat is hinged to an adjusting rod 203, the other end of the adjusting rod 203 passes through the through groove and is hinged to a fixing rod 204, one end of the fixing rod 204 is hinged to the inner wall of the through groove, and the outer wall of the other end of the fixing rod 204 is in frictional contact with the outer wall of the handle shaft on the load switch body 1.

[0014] The present invention also aims to provide a method for using a shifting device for a load switch operating handle, comprising the following steps:

[0015] First, the U-shaped clamp 201 is placed on the handle of the load switch body 1. Under the action of the electric push rod 202, the adjusting rod 203 drives the fixing rod 204 to rotate, so that the fixing rod 204 presses on the handle of the load switch body 1, thereby achieving clamping and fixing between the connecting mechanism 2 and the handle of the load switch body 1.

[0016] Install the shifting seat 3 in a suitable position as needed, move the limiting rod 401 so that the limiting rod 401 is taken out from the take-up rod 7, and rotate the take-up rod 7 by moving the limiting rod 401 to wind up and tighten the wire rope 8;

[0017] When the limiting rod 401 is reinserted into the retracting rod 7, the ring tooth 402 will drive the meshing gear 603 to rotate, so that the gear 603 can drive the lead screw 602 to rotate, so that the lead screw 602 drives the threaded piston plate 601 to move down, squeezing the gas in the piston chamber into the air injection pipe 902, and then the squeezing rod 903 drives the arc-shaped locking block to move and press against the outer wall of the wire rope 8 to fix it.

[0018] When this device is needed, hold the operating handle 5 and press the pressure rod 504, so that the pressure rod 504 presses against the inclined surface of the inclined guide block 502, causing the positioning rod 501 to retract, so that the positioning rod 501 moves out of the positioning hole 302, thereby allowing the operating handle 5 to be rotated. Then, under the action of the spring 503, the positioning rod 501 will be inserted into another positioning hole 302 to fix the operating handle 5. When the operating handle 5 is rotated, the rotating shaft 4 will be rotated, and the rotating shaft 4 will drive the fixed seat 6 to rotate. At this time, the steel wire rope 8 on the fixed seat 6 will be tightened, thereby driving the handle of the connected load switch body 1 to rotate to open and close.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In this invention, the length of the wire rope can be adjusted according to actual needs to achieve the purpose of adjusting the position of the operating handle, so that the installation position of the operating handle is not restricted, and the displacement range of this device is wide, thereby improving the practicality of this device;

[0021] 2. In this invention, the connecting mechanism allows the device to be connected to the handle of a load switch body of different sizes; at the same time, the protective cover can effectively prevent accidental operation of the handle due to collision with external objects, thereby improving the safety of the device.

[0022] 3. In this invention, when it is necessary to adjust the length of the wire rope, simply remove the limiting rod from the take-up / release rod. This will cause the piston plate connected to the screw thread to move, thereby allowing the compression rod to retract, thus realizing the take-up / release of the wire rope. After the wire rope length is adjusted, when the limiting rod is inserted back into the take-up / release rod, the piston plate will compress the gas, thereby causing the compression rod to fix the wire rope in the sleeve, thus preventing the wire rope from loosening. This improves the stability of the load switch after displacement and enhances the operational accuracy of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a partial cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the connection mechanism structure of the present invention;

[0026] Figure 4 This is a partial cross-sectional view of the operating handle and other structures of the present invention.

[0027] Figure 5 This is a partial cross-sectional view of a portion of the structure of the present invention;

[0028] Figure 6This is a partial cross-sectional view of a portion of the structure of the present invention.

[0029] Figure reference numerals:

[0030] 1. Load switch body; 2. Connecting mechanism; 3. Shifting seat; 4. Rotating shaft; 5. Operating handle; 6. Fixed seat; 7. Retracting rod; 8. Wire rope; 9. Limiting mechanism;

[0031] 201. U-shaped lever; 202. Electric actuator; 203. Adjusting rod; 204. Fixing rod;

[0032] 301. Protective cover; 302. Positioning hole;

[0033] 401. Limiting rod; 402. Ring tooth;

[0034] 501. Positioning rod; 502. Angled guide block; 503. Spring; 504. Pressure rod;

[0035] 601. Piston plate; 602. Lead screw; 603. Gear;

[0036] 701, Limiting hole;

[0037] 901. Sleeve; 902. Gas injection pipe; 903. Extrusion rod. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some embodiments of this invention, but not all embodiments.

[0039] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] The embodiments and directional terms described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] In a broad embodiment of the present invention, a displacement device for a load switch operating handle includes a connecting mechanism 2 for engaging with a handle shaft on the load switch body 1. The connecting mechanism 2 is characterized by a wire rope 8 connected to it, with a displacement seat 3 at the other end of the wire rope 8. A rotating shaft 4 is rotatably mounted on the displacement seat 3, with an operating handle 5 and a fixed seat 6 fixedly connected to both ends of the rotating shaft 4. A take-up / release rod 7 is rotatably mounted between the inner walls of the fixed seat 6, and the wire rope 8 is wound around the outer wall of the take-up / release rod 7. A limit mechanism 9 is fixedly mounted on the lower side wall of the fixed seat 6.

[0042] Preferably, a protective cover 301 is fixedly connected to the outer wall of the shifting seat 3 near the operating handle 5. Two positioning holes 302 are opened on the inner wall of the protective cover 301. A square groove is opened at one end of the operating handle 5 near the protective cover 301. The lower side of the square groove is connected to a limiting groove, and the upper side of the square groove is connected to a square through groove. A positioning rod 501 is slidably limited in the square groove. The outer end of the positioning rod 501 is movably inserted into the inner wall of the positioning hole 302. The inclined guide block 502 is slidably limited in the limiting groove. A pressing block is slidably limited in the square through groove. A pressure rod 504 is fixedly connected to the upper end of the pressing block. The outer wall of the inner end of the positioning rod 501 located in the square groove is fixedly connected to the inclined guide block 502. The other end of the inclined guide block 502 is fixedly connected to the inner wall of the limiting groove through a spring 503. The outer wall of the lower end of the pressing block is slidably in contact with the inclined surface of the inclined guide block 502.

[0043] Preferably, an arc-shaped groove is provided on one side of the rotating shaft 4, and an arc-shaped plate is slidably limited in the arc-shaped groove. A connecting plate is fixedly connected to the other end of the arc-shaped plate. A square through hole communicating with the arc-shaped groove is provided at the inner end of the rotating shaft 4. A limit rod 401 is slidably fitted on the inner wall of the square through hole. The outer end of the limit rod 401 is fixedly connected to the arc-shaped plate. A connecting shaft is fixedly connected to the inner end of the limit rod 401. A plurality of annular teeth 402 are fixedly sleeved on the outer wall of the middle part of the connecting shaft. A limit block is fixedly connected to the inner end of the connecting shaft.

[0044] Preferably, the retractable rod 7 has a limiting hole 701 at one end near the rotating shaft 4, which matches the limiting block and the annular tooth 402. The inner wall of the limiting hole 701 is movably engaged with the outer wall of one end of the limiting rod 401.

[0045] Preferably, the limiting mechanism 9 includes a sleeve 901, which is fixedly connected to the bottom surface of the fixed base 6. A snap-fit ​​seat is fixedly provided on the inner wall of the sleeve 901. A limiting arc-shaped groove is formed on one side of the outer wall of the snap-fit ​​seat. An arc-shaped snap-fit ​​block that matches the limiting arc-shaped groove is movably snapped onto the arc-shaped groove. The arc-shaped snap-fit ​​block is in frictional contact with the outer wall of the wire rope 8. An air injection pipe 902 is fixedly provided on one side of the outer wall of the sleeve 901. The other end of the air injection pipe 902 is connected to a connecting pipe. A piston is slidably provided in the air injection pipe 902. A compression rod 903 is fixedly connected to the inner end of the piston. The other end of the compression rod 903 slides through the air injection pipe 902 and the sleeve 901, extends into the interior of the sleeve 901, and is fixedly connected to the arc-shaped snap-fit ​​block.

[0046] Preferably, a piston chamber is provided inside the fixed seat 6 near the rotating shaft 4, and a piston plate 601 is slidably fitted on the inner wall of the piston chamber. The inner wall of one side of the piston chamber is connected to the inner wall of the air injection pipe 902 through a connecting pipe.

[0047] Preferably, a lead screw 602 is threadedly connected to the top surface of the piston plate 601. The upper end of the lead screw 602 extends through the inner wall of the piston cavity to the outer wall and is rotatably connected to it. A gear 603 is fixedly connected to the outer wall of the other end of the lead screw 602. The gear 603 meshes with the annular gear 402 for transmission.

[0048] Preferably, the connecting mechanism 2 includes a U-shaped clamp 201, the lower outer wall of the U-shaped clamp 201 is fixedly connected to one end of the wire rope 8, and an mounting base is fixedly provided on the upper outer wall of the U-shaped clamp 201, and an electric push rod 202 is connected to the mounting base.

[0049] Preferably, the upper outer wall of the U-shaped lever 201 has a through groove, the outer wall of the output end of the electric push rod 202 is rotatably connected to a hinge seat, the hinge seat is hinged to an adjusting rod 203, the other end of the adjusting rod 203 passes through the through groove and is hinged to a fixing rod 204, one end of the fixing rod 204 is hinged to the inner wall of the through groove, and the outer wall of the other end of the fixing rod 204 is in frictional contact with the outer wall of the handle shaft on the load switch body 1.

[0050] The present invention also aims to provide a method for using a shifting device for a load switch operating handle, comprising the following steps:

[0051] First, the U-shaped clamp 201 is placed on the handle of the load switch body 1. Under the action of the electric push rod 202, the adjusting rod 203 drives the fixing rod 204 to rotate, so that the fixing rod 204 presses on the handle of the load switch body 1, thereby achieving clamping and fixing between the connecting mechanism 2 and the handle of the load switch body 1.

[0052] Install the shifting seat 3 in a suitable position as needed, move the limiting rod 401 so that the limiting rod 401 is taken out from the take-up rod 7, and rotate the take-up rod 7 by moving the limiting rod 401 to wind up and tighten the wire rope 8;

[0053] When the limiting rod 401 is reinserted into the retracting rod 7, the ring tooth 402 will drive the meshing gear 603 to rotate, so that the gear 603 can drive the lead screw 602 to rotate, so that the lead screw 602 drives the threaded piston plate 601 to move down, squeezing the gas in the piston chamber into the air injection pipe 902, and then the squeezing rod 903 drives the arc-shaped locking block to move and press against the outer wall of the wire rope 8 to fix it.

[0054] When this device is needed, hold the operating handle 5 and press the pressure rod 504, so that the pressure rod 504 presses against the inclined surface of the inclined guide block 502, causing the positioning rod 501 to retract, so that the positioning rod 501 moves out of the positioning hole 302, thereby allowing the operating handle 5 to be rotated. Then, under the action of the spring 503, the positioning rod 501 will be inserted into another positioning hole 302 to fix the operating handle 5. When the operating handle 5 is rotated, the rotating shaft 4 will be rotated, and the rotating shaft 4 will drive the fixed seat 6 to rotate. At this time, the steel wire rope 8 on the fixed seat 6 will be tightened, thereby driving the handle of the connected load switch body 1 to rotate to open and close.

[0055] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, and the present invention will be further described in detail.

[0056] Please refer to Figures 1-6. A displacement device for a load switch operating handle includes a connecting mechanism 2, which is used to engage with the handle shaft on the load switch body 1. A steel wire rope 8 is connected to the connecting mechanism 2, and a displacement seat 3 is provided at the other end of the steel wire rope 8. A rotating shaft 4 is rotatably connected to the displacement seat 3.

[0057] The operating handle 5 is fixedly connected to one end of the rotating shaft 4;

[0058] The fixed base 6 is fixedly installed at the other end of the rotating shaft 4;

[0059] The take-up and release rod 7 is rotatably connected to the fixed base 6, and the wire rope 8 is wound around the outer wall of the take-up and release rod 7. The wire rope 8 allows the device to adjust the fixed position of the shifting base 3 at will according to different needs.

[0060] The limiting mechanism 9 is fixedly installed on the lower side of the fixed base 6.

[0061] Specifically, the connecting mechanism 2 includes a U-shaped clamp 201. The lower outer wall of the U-shaped clamp 201 is fixedly connected to one end of the wire rope 8. An installation seat is fixedly installed on the upper outer wall of the U-shaped clamp 201, and an electric push rod 202 is connected to the installation seat.

[0062] Furthermore, a through groove is provided on the upper outer wall of the U-shaped lever 201, and a hinge seat is rotatably connected to the outer wall of the output end of the electric push rod 202. An adjusting rod 203 is hinged to the hinge seat, and the other end of the adjusting rod 203 passes through the through groove and is hinged to a fixing rod 204. One end of the fixing rod 204 is hinged to the inner wall of the through groove, and the outer wall of the other end of the fixing rod 204 is in frictional contact with the outer wall of the handle shaft on the load switch body 1.

[0063] In this embodiment, the connecting mechanism 2 serves to connect and fix the handle of the load switch body 1.

[0064] Furthermore, a protective cover 301 is fixedly installed on the outer wall of the shift seat 3 near the operating handle 5, and two positioning holes 302 are opened on the inner wall of the protective cover 301.

[0065] In this embodiment, the protective cover 301 can prevent external objects from colliding with the operating handle 5.

[0066] Furthermore, a square groove is provided at one end of the operating handle 5 near the protective cover 301. The lower side of the square groove is connected to a limiting groove, and the upper side of the square groove is connected to a square through groove. A positioning rod 501 is slidably limited in the square groove. The outer end of the positioning rod 501 is movably inserted into the inner wall of the positioning hole 302. The inclined guide block 502 is slidably limited in the limiting groove. A pressing block is slidably limited in the square through groove. A pressing rod 504 is fixedly connected to the upper end of the pressing block. The outer wall of the inner end of the positioning rod 501 located in the square groove is connected and fixedly set to the inclined guide block 502. The other end of the inclined guide block 502 is connected and fixedly set to the inner wall of the limiting groove through a spring 503. The outer wall of the lower end of the pressing block is slidably contacted at the inclined surface of the inclined guide block 502.

[0067] In this embodiment, the positioning rod 501 can limit the operating handle 5 in the positioning hole 302 to achieve the limiting and fixing of the operating handle 5.

[0068] Furthermore, an arc-shaped groove is provided on one side of the rotating shaft 4, and an arc-shaped plate is slidably limited in the arc-shaped groove. A connecting plate is fixedly connected to the other end of the arc-shaped plate. A square through hole communicating with the arc-shaped groove is provided at the inner end of the rotating shaft 4. A limit rod 401 is slidably fitted on the inner wall of the square through hole. The outer end of the limit rod 401 is fixedly connected to the arc-shaped plate. A connecting shaft is fixedly connected to the inner end of the limit rod 401. Multiple annular teeth 402 are fixedly sleeved on the outer wall of the middle part of the connecting shaft. A limit block is fixedly connected to the inner end of the connecting shaft.

[0069] In this embodiment, the ring tooth 402 can drive the gear 603 in all directions.

[0070] Furthermore, the retractable rod 7 has a limiting hole 701 at one end near the rotating shaft 4, which matches the limiting block and the ring tooth 402. The inner wall of the limiting hole 701 is movably engaged with the outer wall of one end of the limiting rod 401.

[0071] In this embodiment, the limiting hole 701 connects the extension / retraction rod 7 to the rotating shaft 4.

[0072] It is worth noting that the limiting mechanism 9 includes a sleeve 901, which is fixedly connected to the bottom surface of the fixed base 6. A snap-fit ​​seat is fixedly installed on the inner wall of the sleeve 901. A limiting arc groove is opened on one side of the outer wall of the snap-fit ​​seat. A matching arc-shaped snap-fit ​​block is movably snapped onto the limiting arc groove. The arc-shaped snap-fit ​​block is in frictional contact with the outer wall of the wire rope 8. An air injection pipe 902 is fixedly installed on one side of the outer wall of the sleeve 901. The other end of the air injection pipe 902 is connected to a connecting pipe. A piston is slidably installed in the air injection pipe 902. A compression rod 903 is fixedly connected to the inner end of the piston. The other end of the compression rod 903 slides through the air injection pipe 902 and the sleeve 901, extends into the interior of the sleeve 901, and is fixedly connected to the arc-shaped snap-fit ​​block.

[0073] In this embodiment, the compression rod 903 serves to limit and fix the wire rope 8.

[0074] It is worth noting that a piston chamber is provided inside the fixed seat 6 near the rotating shaft 4. A piston plate 601 is slidably fitted on the inner wall of the piston chamber. The inner wall of one side of the piston chamber is connected to the inner wall of the air injection pipe 902 through a connecting pipe.

[0075] In addition, a lead screw 602 is threaded through the top surface of the piston plate 601. The upper end of the lead screw 602 extends through the inner wall of the piston cavity to the outer wall and is rotatably connected to it. A gear 603 is fixedly connected to the outer wall of the other end of the lead screw 602. The gear 603 meshes with the ring gear 402 for transmission.

[0076] Working principle: When the load switch is installed and used, the load switch body 1 can be installed in the required position, and then the operating handle 5 can be moved to a convenient position. The shifting seat 3 is installed in a suitable position, and then the connecting mechanism 2 can be connected and fixed to the handle of the load switch body 1. The U-shaped clamp 201 is put on the handle of the load switch body 1, and then the electric push rod 202 drives the connected adjusting rod 203, so that the adjusting rod 203 can drive the fixing rod 204 to rotate, so that the fixing rod 204 presses against the handle of the load switch body 1 to achieve clamping and fixing.

[0077] Then, the wire rope 8 can be tightened using the take-up and release rod 7. First, move the limit rod 401 so that the limit rod 401 is removed from the take-up and release rod 7. At this time, the take-up and release rod 7 can be rotated to wind up and tighten the wire rope 8. Then, the limit rod 401 is reinserted into the take-up and release rod 7. At this time, the ring tooth 402 will drive the meshing gear 603 to rotate, so that the gear 603 can drive the lead screw 602 to rotate, so that the lead screw 602 drives the threaded piston plate 601 to move down, squeezing the gas in the piston chamber into the air injection pipe 902. Then, the squeezing rod 903 drives the arc-shaped locking block to move and press against the outer wall of the wire rope 8 to fix it.

[0078] Then, when the device is needed, when the operating handle 5 is held, the pressure rod 504 will be pressed, causing the pressure rod 504 to press against the inclined surface of the inclined guide block 502. Then, the positioning rod 501 connected to the inclined guide block 502 will be retracted, causing the positioning rod 501 to move out of the positioning hole 302. Thus, the operating handle 5 can be rotated. Then, under the action of the spring 503, the positioning rod 501 will be inserted into another positioning hole 302 to fix the operating handle 5.

[0079] When the operating handle 5 is turned, the rotating shaft 4 will rotate, which in turn will drive the fixed base 6 to rotate. At this time, the wire rope 8 on the fixed base 6 will tighten, thereby driving the handle of the connected load switch body 1 to rotate for opening and closing.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A displacement device for a load switch operating handle, comprising a connecting mechanism (2) for engaging with the handle shaft on the load switch body (1), characterized in that, A steel wire rope (8) is connected to the connecting mechanism (2), and a shift seat (3) is provided at the other end of the steel wire rope (8); a rotating shaft (4) is rotatably provided on the shift seat (3), and an operating handle (5) and a fixed seat (6) are fixedly connected to both ends of the rotating shaft (4), and a take-up rod (7) is rotatably provided between the inner walls of the fixed seat (6), and the steel wire rope (8) is wound around the outer wall of the take-up rod (7); a limit mechanism (9) is fixedly provided on the lower side wall of the fixed seat (6). A protective cover (301) is fixedly installed on the outer wall of the shifting seat (3) near the operating handle (5). Two positioning holes (302) are opened on the inner wall of the protective cover (301). A square groove is opened at one end of the operating handle (5) near the protective cover (301). The lower side of the square groove is connected to a limiting groove, and the upper side of the square groove is connected to a square through groove. A positioning rod (501) is slidably limited in the square groove. The outer end of the positioning rod (501) is connected to the inner wall of the positioning hole (302). The movable plug-in setting includes a sliding guide block (502) in the limiting groove and a pressing block in the square through groove. A pressing rod (504) is fixedly connected to the upper end of the pressing block. The inner end of the positioning rod (501) in the square groove is connected and fixedly set to the inclined guide block (502). The other end of the inclined guide block (502) is connected and fixedly set to the inner wall of the limiting groove through a spring (503). The lower end of the pressing block is in sliding contact with the inclined surface of the inclined guide block (502). An arc-shaped groove is provided on one side of the rotating shaft (4), and an arc-shaped plate is slidably limited in the arc-shaped groove. A connecting plate is fixedly connected to the other end of the arc-shaped plate. A square through hole communicating with the arc-shaped groove is provided at the inner end of the rotating shaft (4). A limit rod (401) is slidably provided on the inner wall of the square through hole. The outer end of the limit rod (401) is fixedly connected to the arc-shaped plate. A connecting shaft is fixedly connected to the inner end of the limit rod (401). A plurality of annular teeth (402) are fixedly sleeved on the outer wall of the middle part of the connecting shaft. A limit block is fixedly connected to the inner end of the connecting shaft. The retractable rod (7) has a limiting hole (701) at one end near the rotating shaft (4) that matches the limiting block and the ring tooth (402). The inner wall of the limiting hole (701) is movably engaged with the outer wall of one end of the limiting rod (401).

2. The displacement device for a load switch operating handle according to claim 1, characterized in that, The limiting mechanism (9) includes a sleeve (901), which is fixedly connected to the bottom surface of the fixed seat (6). A snap-fit ​​seat is fixedly provided on the inner wall of the sleeve (901). A limiting arc groove is opened on one side of the outer wall of the snap-fit ​​seat. An arc-shaped snap-fit ​​block is movably snapped onto the limiting arc groove. The arc-shaped snap-fit ​​block is in frictional contact with the outer wall of the wire rope (8). An air injection pipe (902) is fixedly provided on one side of the outer wall of the sleeve (901). A connecting pipe is connected to the other end of the air injection pipe (902). A piston is slidably provided in the air injection pipe (902). A compression rod (903) is fixedly connected to the inner end of the piston. The other end of the compression rod (903) slides through the air injection pipe (902) and the sleeve (901) and extends into the interior of the sleeve (901) and is fixedly connected to the arc-shaped snap-fit ​​block.

3. The displacement device for a load switch operating handle according to claim 2, characterized in that, The fixed seat (6) has a piston chamber inside one end near the rotating shaft (4). A piston plate (601) is slidably fitted on the inner wall of the piston chamber. The inner wall of one side of the piston chamber is connected to the inner wall of the air injection pipe (902) through a connecting pipe.

4. The displacement device for a load switch operating handle according to claim 3, characterized in that, A lead screw (602) is threaded through the top surface of the piston plate (601). The upper end of the lead screw (602) extends through the inner wall of the piston cavity to the outer wall and is rotatably connected to it. A gear (603) is fixedly connected to the outer wall of the other end of the lead screw (602). The gear (603) meshes with the ring gear (402) for transmission.

5. The displacement device for a load switch operating handle according to claim 4, characterized in that, The connecting mechanism (2) includes a U-shaped clamp (201), the lower outer wall of the U-shaped clamp (201) is fixedly connected to one end of the wire rope (8), and an mounting base is fixedly provided on the upper outer wall of the U-shaped clamp (201), and an electric push rod (202) is connected to the mounting base.

6. The displacement device for a load switch operating handle according to claim 5, characterized in that, The upper outer wall of the U-shaped lever (201) is provided with a through groove. The outer wall of the output end of the electric push rod (202) is rotatably connected to a hinge seat. The hinge seat is hinged to an adjusting rod (203). The other end of the adjusting rod (203) passes through the through groove and is hinged to a fixing rod (204). One end of the fixing rod (204) is hinged to the inner wall of the through groove, and the outer wall of the other end of the fixing rod (204) is in frictional contact with the outer wall of the handle shaft on the load switch body (1).

7. A method of using a load switch operating handle shifting device, implemented based on the load switch operating handle shifting device according to claim 6, characterized in that, Includes the following steps: First, put the U-shaped clamp (201) on the handle of the load switch body (1). Under the action of the electric push rod (202), the adjusting rod (203) drives the fixing rod (204) to rotate, so that the fixing rod (204) presses on the handle of the load switch body (1) to achieve clamping and fixing between the connecting mechanism (2) and the handle of the load switch body (1); Install the shifting seat (3) in a suitable position as needed, move the limiting rod (401) so that the limiting rod (401) is taken out from the take-up rod (7), and rotate the take-up rod (7) by moving the limiting rod (401) to wind up and tighten the wire rope (8); When the limiting rod (401) is reinserted into the retracting rod (7), the ring tooth (402) will drive the meshing gear (603) to rotate, so that the gear (603) can drive the lead screw (602) to rotate, so that the lead screw (602) drives the threaded piston plate (601) to move down, squeezing the gas in the piston chamber into the air injection pipe (902), and then the squeezing rod (903) drives the arc-shaped snap block to move and press against the outer wall of the wire rope (8) to fix it. When this device is needed, hold the operating handle (5) and press the pressure rod (504), so that the pressure rod (504) presses the inclined surface of the inclined guide block (502) and drives the positioning rod (501) to retract, so that the positioning rod (501) moves out of the positioning hole (302), thereby allowing the operating handle (5) to be rotated. Then, under the action of the spring (503), the positioning rod (501) will be inserted into another positioning hole (302) to fix the operating handle (5). When the operating handle (5) is rotated, the rotating shaft (4) will be rotated, and the rotating shaft (4) will drive the fixed seat (6) to rotate. At this time, the wire rope (8) on the fixed seat (6) will be tightened, thereby driving the handle of the connected load switch body (1) to rotate to open and close.

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