Blade switching operating device

Abstract

The application discloses a kind of knife switch operating device, including operating lever and the main body being arranged in one end of operating lever, main body is provided with mounting cavity and through-hole, through-hole is communicated mounting cavity and the top of main body, mounting cavity is provided with multiple operation head assemblies being spaced apart along the first direction, operation head assembly includes drive rod and the knife switch operating head being arranged in the top of drive rod, the structure of each knife switch operating head corresponds the knife switch of one specification, drive mechanism is arranged in mounting cavity, drive mechanism can be moved along the first direction, the end of each drive rod is away from knife switch operating head and is arranged one transmission mechanism, drive mechanism moves to selectively connect with any one transmission mechanism, drive mechanism drives operation head assembly to move vertically by transmission mechanism, so that knife switch operating head is extended to outside mounting cavity by through-hole. The knife switch operating device of the application is strong in universality, and can be applied to the opening and closing operation of different kinds of knife switch.

Description

Technical Field

[0001] This invention relates to the field of knife switch auxiliary device technology, and in particular to a knife switch operating device. Background Technology

[0002] During power grid maintenance, disconnectors are typically opened and closed. There are many types of disconnectors, and different operating rods are usually needed to open and close different disconnectors on site. The operating rod consists of a rod body and an operating head at one end of the rod body. The operating rod is generally made of steel and is quite heavy. Carrying multiple operating rods at once increases the difficulty of operation for the operator, and managing multiple operating rods is also troublesome and costly. Summary of the Invention

[0003] The purpose of this invention is to provide a knife switch operating device that is applicable to different types of knife switches, has a wide range of applications, is easy to operate, and is low in cost.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A knife switch operating device is provided, including an operating rod and a main body disposed at one end of the operating rod. The main body has a mounting cavity and a through hole, the through hole connecting the mounting cavity and the top of the main body. Multiple operating head assemblies are disposed within the mounting cavity, spaced apart along a first direction. Each operating head assembly includes a drive rod and a knife switch operating head disposed at the top of the drive rod. The structure of each knife switch operating head corresponds to a specific type of knife switch. A drive mechanism is disposed within the mounting cavity, and the drive mechanism is movable along the first direction. A transmission mechanism is disposed at the end of each drive rod away from the knife switch operating head. The drive mechanism moves to selectively connect with any one of the transmission mechanisms. The drive mechanism drives the operating head assembly to move vertically through the transmission mechanism, so that the knife switch operating head extends out of the mounting cavity through the through hole.

[0006] As a preferred embodiment of the knife switch operating device, the transmission mechanism includes a first lead screw, a first nut, a first mounting base, and a first drive gear. The first lead screw is connected to the inner wall of the mounting cavity through the first mounting base. The length of the first lead screw extends vertically and can rotate around its own axis. The first nut is fixed on the drive rod and threadedly connected to the first lead screw. The first drive gear is fixed on the first lead screw and rotates synchronously with the first lead screw. The first drive gear is spaced below the first nut.

[0007] The drive mechanism includes a first motor and a second drive gear disposed at the output shaft end of the first motor, wherein the second drive gear selectively meshes with any one of the first drive gears.

[0008] As a preferred embodiment of the knife switch operating device, a moving mechanism is also provided in the mounting cavity. The moving mechanism is connected to the driving mechanism to drive the driving mechanism to move along the first direction and the second direction. The first direction and the second direction are perpendicular. The moving mechanism drives the driving mechanism to move along the second direction to approach or move away from the transmission mechanism so that the second driving gear can mesh with the first driving gear.

[0009] As a preferred embodiment of the knife switch operating device, the moving mechanism includes a first slide rail, a first slider, a second slide rail, and a second slider. The first slide rail is fixed inside the mounting cavity. The first slider is slidably disposed on the first slide rail. The second slide rail is disposed on the top of the first slider. The second slider is slidably disposed on the second slide rail. The driving mechanism is disposed on the second slider. The length of the first slide rail extends along the first direction, and the length of the second slide rail extends along the second direction. The first slider is connected to the first driving member, and the second slider is connected to the second driving member.

[0010] As a preferred embodiment of the knife switch operating device, the first motor is fixed on the top of the second slider, and a through hole is provided on the second slider. The drive shaft of the first motor passes through the through hole and is connected to the second drive gear located below the second slider.

[0011] As a preferred embodiment of the switch operating device, a linear bearing is provided in the mounting cavity for each drive rod, the linear bearing is fixed on the cavity wall of the mounting cavity, and the linear bearing is sleeved on the outside of the drive rod.

[0012] As a preferred embodiment of the knife switch operating device, the top of the main body is provided with a plurality of through holes spaced apart along the first direction, and the plurality of through holes correspond one-to-one with a plurality of operating head assemblies.

[0013] As a preferred embodiment of the knife switch operating device, the main body is detachably connected to the top of the operating rod.

[0014] As a preferred embodiment of the disconnect switch operating device, a control board is installed inside the main body, and the control board is electrically connected to the drive mechanism. A power module is installed inside the operating lever, and the power module is connected to a socket via a wire. A plug is installed on the main body at a position corresponding to the socket, and the plug is connected to the socket so that the power module provides power to the control board and the drive mechanism. A wireless transmission module is also installed on the control board, and a remote control board is installed on the operating lever. The remote control board is connected to the control board through the wireless transmission module.

[0015] As a preferred embodiment of the disconnector operating device, the power module is located near the end of the operating lever away from the main body.

[0016] The beneficial effects of this invention are as follows: by setting multiple operating head assemblies in the main body, it can be applied to knife switches of different specifications. The movable drive mechanism can be selectively connected to the transmission mechanism on one side of an operating head assembly, so that only the knife switch operating head of one operating head assembly extends out of the main body at any given time, while the other operating head assemblies are hidden in the mounting cavity of the main body, thus avoiding affecting the operation of the knife switch by the extended knife switch operating head. Furthermore, the movable drive mechanism can reduce the number of drive mechanisms, thereby reducing costs and the weight of the entire knife switch operating device. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a perspective view of the knife switch operating device according to an embodiment of the present invention (when the first knife switch operating head is extended).

[0019] Figure 2 This is a perspective view of the knife switch operating device according to an embodiment of the present invention (when the second knife switch operating head is extended).

[0020] Figure 3 This is a perspective view of the knife switch operating device according to an embodiment of the present invention (when the third knife switch operating head is extended).

[0021] Figure 4 This is a cross-sectional schematic diagram of the knife switch operating device according to an embodiment of the present invention (operating lever not shown).

[0022] Figure 5 This is a schematic diagram of the assembly of the moving mechanism and the driving mechanism according to an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Operating lever; 2. Main body; 21. Mounting cavity; 22. Through hole; 23. Door body; 24. Hinge; 3. Drive lever; 4. Knife switch operating head; 5. Drive mechanism; 51. First motor; 52. Second drive gear; 6. Transmission mechanism; 61. First lead screw; 62. First nut; 63. First drive gear; 7. Moving mechanism; 71. First slide rail; 72. First slider; 73. Second slide rail; 74. Second slider; 75. Second motor; 76. Second lead screw; 77. Second nut; 78. Second mounting base; 8. Linear bearing; 9. Handle. Detailed Implementation

[0025] The advantages and features of the present invention, as well as methods of implementing them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided merely to complete the disclosure of the invention and to enable those skilled in the art to fully understand the scope of the invention, which is defined only by the scope of the claims. The same reference numerals denote the same constituent elements throughout the specification.

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] like Figures 1 to 4 As shown, the knife switch operating device of this embodiment includes an operating rod 1 and a main body 2 disposed at one end of the operating rod 1. The main body 2 is provided with a mounting cavity 21 and a through hole 22. The through hole 22 connects the mounting cavity 21 and the top of the main body 2. The mounting cavity 21 is provided with a plurality of operating head assemblies arranged at intervals along a first direction. The operating head assembly includes a drive rod 3 and a knife switch operating head 4 disposed at the top of the drive rod 3. The structure of each knife switch operating head 4 corresponds to a knife switch of a certain specification (not shown in the figure). The mounting cavity 21 is provided with a drive mechanism 5. The drive mechanism 5 can move along the first direction. Each drive rod 3 is provided with a transmission mechanism 6 at the end away from the knife switch operating head 4. The drive mechanism 5 moves to selectively connect with any one of the transmission mechanisms 6. The drive mechanism 5 drives the operating head assembly to move vertically through the transmission mechanism 6 so that the knife switch operating head 4 extends out of the mounting cavity 21 through the through hole 22. By setting multiple operating head assemblies within the main body 2, it can be adapted to knife switches of different specifications. The movable drive mechanism 5 can be selectively connected to the transmission mechanism 6 on one side of an operating head assembly, so that only the knife switch operating head 4 of one operating head assembly extends from the main body 2 at any given time, while the other operating head assemblies are hidden within the mounting cavity 21 of the main body 2, thus avoiding interference with the operation of the knife switch by the extended knife switch operating head 4. Furthermore, the movable drive mechanism 5 can reduce the number of drive mechanisms 5, thereby reducing costs and the weight of the entire knife switch operating device.

[0028] In this embodiment, the transmission mechanism 6 includes a first lead screw 61, a first nut 62, a first mounting base (not shown in the figure), and a first drive gear 63. The first lead screw 61 is connected to the inner wall of the mounting cavity 21 through the first mounting base. The length of the first lead screw 61 extends vertically and can rotate around its own axis. The first nut 62 is fixed on the drive rod 3 and threadedly connected to the first lead screw 61. The first drive gear 63 is fixed on the first lead screw 61 and rotates synchronously with the first lead screw 61. The first drive gear 63 is spaced below the first nut 62. The drive mechanism 5 includes a first motor 51 and a second drive gear 52 disposed at the output shaft end of the first motor 51. The second drive gear 52 selectively meshes with any one of the first drive gears 63. By setting up a structure in which the first lead screw 61 engages with the first drive gear 63, when the second drive gear 52 on the first motor 51 meshes with the first drive gear 63, the first motor 51 starts, driving the second drive gear 52 to rotate. The second drive gear 52 then synchronously drives the first drive gear 63 to rotate. Since the first drive gear 63 is fixedly set with the first lead screw 61, the first lead screw 61 will rotate around its own axis under the force of the rotation of the first drive gear 63. The rotating first lead screw 61 is threadedly connected to the first nut 62, which will drive the first nut 62 to move vertically on the first lead screw 61. The drive rod 3 connected to the first nut 62 will then move vertically, extending out of the main body 2 to work or retracting into the main body 2 for storage. The transmission of the lead screw, nut, and gear is relatively smooth, and the extension position of the knife switch operating head 4 can be locked by stopping the motor, eliminating the need for an additional locking mechanism to lock the position of the knife switch operating head 4, thus simplifying the structure.

[0029] Of course, it is not limited to the above-mentioned screw, nut and gear structure. Other transmission mechanisms 6 and drive mechanisms 5 can also be used. For example, a sleeve is fitted on the drive rod 3. The sleeve has an internal thread and a gear is provided on the outside of the sleeve. The second drive gear 52 of the drive mechanism 5 selectively meshes with the gear on the outside of the sleeve. A limiting seat is provided in the mounting cavity 21 to limit the position of the sleeve. The limiting seat restricts the sleeve to rotate only along the drive rod 3 and cannot move. The drive rod 3 is provided with an external thread that matches the internal thread of the sleeve. The rotating sleeve drives the drive rod 3 to move vertically.

[0030] Alternatively, a cam structure can be set to drive the drive rod 3 to move vertically. The drive mechanism 5 includes a first motor 51 and a cam set at the output shaft end of the first motor 51. A drive plate is set on the drive rod 3. After the first motor 51 moves to the corresponding drive plate, it rotates the cam. The cam rotates from the lowest point to the highest point to abut against the drive plate, so that the drive rod 3 moves vertically. At this time, a guide sleeve needs to be set. The guide sleeve is fixed on the cavity wall of the mounting cavity 21 and is sleeved on the drive rod 3, restricting the drive rod 3 to move only in the vertical direction.

[0031] In one embodiment, a moving mechanism 7 is further provided within the mounting cavity 21. The moving mechanism 7 is connected to the driving mechanism 5 to drive the driving mechanism 5 to move along a first direction and a second direction, which are perpendicular to each other. The moving mechanism 7 drives the driving mechanism 5 to move along the second direction to approach or move away from the transmission mechanism 6, so that the second driving gear 52 can mesh with the first driving gear 63. By providing the moving mechanism 7, the driving mechanism 5 can be switched to the transmission mechanism 6 corresponding to different operating head components, and the second driving gear 52 can be moved closer to or away from the first driving gear 63 to complete the meshing and disengagement actions.

[0032] In this embodiment, the first direction refers to the length direction of the main body 2, and the second direction refers to the width direction of the main body 2.

[0033] like Figure 4 and Figure 5 As shown, the moving mechanism 7 includes a first slide rail 71, a first slider 72, a second slide rail 73, and a second slider 74. The first slide rail 71 is fixed in the mounting cavity 21. The first slider 72 is slidably disposed on the first slide rail 71. The second slide rail 73 is disposed on the top of the first slider 72. The second slider 74 is slidably disposed on the second slide rail 73. The driving mechanism 5 is disposed on the second slider 74. The length of the first slide rail 71 extends along a first direction, and the length of the second slide rail 73 extends along a second direction. The first slider 72 is connected to the first driving member, and the second slider 74 is connected to the second driving member.

[0034] Specifically, the moving mechanism 7 also includes a second lead screw 76 and a second nut 77. The second nut 77 is fixed below the first slider 72. The second lead screw 76 is arranged parallel to one side of the first slide rail 71. The second nut 77 is threadedly connected to the second lead screw 76. One end of the second lead screw 76 is rotatably mounted on one of the second mounting seats 78, and the other end is rotatably mounted on another second mounting seat 78 and extends to one side of this second mounting seat 78 to connect with the first driving component, which is a second motor 75. The lead screw, motor, and slide rail together drive the first slider 72 to move, making the movement more stable.

[0035] The second driving component is a cylinder, with the piston rod end connected to the second slider 74. Driven by the cylinder, the second slider 74 can slide on the second slide rail 73, allowing the second driving gear 52 of the driving mechanism 5 to selectively mesh with the first driving gear 63. Of course, the second driving component is not limited to a cylinder; a structure combining a lead screw, nut, and motor can also be used.

[0036] Furthermore, the first motor 51 is fixed to the top of the second slider 74, and a through hole is provided on the second slider 74. The drive shaft of the first motor 51 passes through the through hole and is connected to the second drive gear 52 located below the second slider 74.

[0037] In one embodiment, a linear bearing 8 is provided in the mounting cavity 21 for each drive rod 3. The linear bearing 8 is fixed to the cavity wall of the mounting cavity 21 and sleeved on the outside of the drive rod 3. By providing the linear bearing 8, the movement of the drive rod 3 can be guided, and the influence of the linear bearing 8 on the movement of the drive rod 3 (i.e., the resistance during the movement process is small), which can effectively reduce the driving energy consumption. Moreover, since the drive rod 3 is guided by the linear bearing 8, there will be no wear, thus extending the service life of the drive rod 3.

[0038] In this embodiment, a plurality of through holes 22 are spaced apart along a first direction on the top of the main body 2, and each of the through holes 22 corresponds to a plurality of operating head assemblies. The arrangement of the plurality of through holes 22 avoids the need for large holes in the top of the main body 2, thereby increasing the strength of the main body 2. Furthermore, the one-to-one correspondence of the through holes 22 with the operating head assemblies also separates adjacent operating head assemblies, preventing interference.

[0039] In one embodiment, the main body 2 is detachably connected to the top of the operating lever 1. The detachable main body 2 and operating lever 1 allow for replacement of the main body 2 at the top of the operating lever 1 as needed, accommodating the operation of more disconnectors. That is, the operating lever 1 is universal; when operating outside, carrying one operating lever 1 and multiple main bodies 2 allows for the operation of more disconnectors. Alternatively, when the main body 2 malfunctions, it can be replaced with a new one.

[0040] In this embodiment, a control board is installed inside the main body 2, and the control board is electrically connected to the drive mechanism 5. A power module is installed inside the operating lever 1, and the power module is connected to a socket via a wire. A plug is installed on the main body 2 at the position corresponding to the socket, and the plug is connected to the socket so that the power module provides power to the control board and the drive mechanism 5. A wireless transmission module is also installed on the control board, and a remote control board is installed on the operating lever 1. The remote control board is connected to the control board via the wireless transmission module. By placing the power module inside the operating lever 1, the space occupied by the power module in the mounting cavity 21 inside the main body 2 can be reduced, allowing the main body 2 to accommodate more knife switch operating heads 4. Moreover, since the main body 2 is located at the top of the operating lever 1, placing the power module inside the operating lever 1 also prevents the top of the operating lever 1 from being too heavy and inconvenient to operate. In addition, the remote control board reduces the difficulty of operation. The operator can switch the knife switch operating heads 4 without having to lower the operating lever 1, reducing the difficulty of operation and eliminating the need for the operator to repeatedly lower and raise the operating lever 1.

[0041] More preferably, the power module is located near the end of the operating lever 1 that is furthest from the main body 2. This design can minimize the weight of the entire switch operating device, avoiding a top-heavy, bottom-light configuration.

[0042] In one embodiment, an opening is provided on one side of the main body 2 in the width direction, the opening connecting to the mounting cavity 21, and a door 23 is provided at the opening, which can be selectively opened. By providing the opening and the door 23, the structure inside the mounting cavity 21 of the main body 2 can be installed and maintained, reducing the difficulty of installation and maintenance.

[0043] In this embodiment, the lower end of the door 23 is hinged to the outer wall of the main body 2 via a hinge 24, and a handle 9 is provided on the outer side of the door 23. The upper end of the door 23 is magnetically attached and fixed inside the opening. The hinge 24 facilitates the connection between the door 23 and the main body 2, while the magnetic attachment reduces the difficulty of sealing the door 23 at the opening. The handle 9 facilitates the operation of the door 23.

[0044] Although embodiments of the invention have been described above with reference to the accompanying drawings, the invention is not limited to the above embodiments, but can be made in various forms, and those skilled in the art will understand that the invention can be implemented in other specific forms without changing the technical spirit or essential characteristics of the invention. Therefore, it should be understood that the above embodiments are exemplary in all respects and not restrictive.

Claims

1. A knife switch operating device, characterized in that, The device includes an operating lever and a main body disposed at one end of the operating lever. The main body has a mounting cavity and a through hole, the through hole connecting the mounting cavity and the top of the main body. Multiple operating head assemblies are arranged at intervals along a first direction within the mounting cavity. Each operating head assembly includes a drive rod and a knife switch operating head disposed at the top of the drive rod. The structure of each knife switch operating head corresponds to a knife switch of a specific specification. A drive mechanism is disposed within the mounting cavity, and the drive mechanism is capable of moving along the first direction. A transmission mechanism is disposed at the end of each drive rod away from the knife switch operating head. The drive mechanism moves to selectively connect with any one of the transmission mechanisms. The drive mechanism drives the operating head assembly to move vertically through the transmission mechanism, so that the knife switch operating head extends out of the mounting cavity through the through hole. The transmission mechanism includes a first lead screw, a first nut, a first mounting base, and a first drive gear. The first lead screw is connected to the inner wall of the mounting cavity through the first mounting base. The length of the first lead screw extends vertically and can rotate around its own axis. The first nut is fixed on the drive rod and threadedly connected to the first lead screw. The first drive gear is fixed on the first lead screw and rotates synchronously with the first lead screw. The first drive gear is spaced below the first nut. The drive mechanism includes a first motor and a second drive gear disposed at the output shaft end of the first motor, wherein the second drive gear selectively meshes with any one of the first drive gears; The mounting cavity is further provided with a moving mechanism, which is connected to the driving mechanism to drive the driving mechanism to move along the first direction and the second direction. The first direction and the second direction are perpendicular. The moving mechanism drives the driving mechanism to move along the second direction to move closer to or further away from the transmission mechanism so that the second driving gear can mesh with the first driving gear.

2. The disconnector operating device according to claim 1, characterized in that, The moving mechanism includes a first slide rail, a first slider, a second slide rail, and a second slider. The first slide rail is fixed inside the mounting cavity. The first slider is slidably disposed on the first slide rail. The second slide rail is disposed on the top of the first slider. The second slider is slidably disposed on the second slide rail. The driving mechanism is disposed on the second slider. The length of the first slide rail extends along the first direction, and the length of the second slide rail extends along the second direction. The first slider is connected to the first driving member, and the second slider is connected to the second driving member.

3. The disconnector operating device according to claim 2, characterized in that, The first motor is fixed to the top of the second slider, and a through hole is provided on the second slider. The drive shaft of the first motor passes through the through hole and is connected to the second drive gear located below the second slider.

4. The disconnector operating device according to any one of claims 1 to 3, characterized in that, A linear bearing is provided in the mounting cavity for each drive rod. The linear bearing is fixed to the cavity wall of the mounting cavity and is sleeved on the outside of the drive rod.

5. The disconnector operating device according to any one of claims 1 to 3, characterized in that, The top of the main body is provided with a plurality of through holes spaced apart along the first direction, and the plurality of through holes correspond one-to-one with the plurality of operating head components.

6. The disconnector operating device according to any one of claims 1 to 3, characterized in that, The main body is detachably connected to the top of the operating lever.

7. The disconnector operating device according to claim 6, characterized in that, A control board is installed inside the main body and is electrically connected to the drive mechanism. A power module is installed inside the operating lever and is connected to a socket via a wire. A plug is installed on the main body at a position corresponding to the socket and is connected to the socket so that the power module provides power to the control board and the drive mechanism. A wireless transmission module is also installed on the control board, and a remote control is installed on the operating lever. The remote control is connected to the control board via the wireless transmission module.

8. The disconnector operating device according to claim 7, characterized in that, The power module is located near the end of the operating lever that is furthest from the main body.

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