CN220651854U - Error-preventing mechanical locking device for ice melting knife switch - Google Patents
Error-preventing mechanical locking device for ice melting knife switch Download PDFInfo
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- CN220651854U CN220651854U CN202321898407.1U CN202321898407U CN220651854U CN 220651854 U CN220651854 U CN 220651854U CN 202321898407 U CN202321898407 U CN 202321898407U CN 220651854 U CN220651854 U CN 220651854U
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- locking device
- movable block
- connecting rod
- cam
- ice
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- 238000002844 melting Methods 0.000 title claims abstract description 17
- 230000008018 melting Effects 0.000 title claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to the technical field of electricity safety, and provides an error-preventing mechanical locking device of an ice melting knife switch. Through the movable block capable of sliding vertically and the two-end limiting concave through holes arranged on the movable block, the transmission connecting rod in the closing and opening states is locked, so that the mechanical locking requirements of closing and opening of the disconnecting link are met, and misoperation accidents are effectively avoided.
Description
Technical Field
The utility model relates to the technical field of electricity safety, in particular to an anti-misoperation mechanical locking device of an ice melting knife switch.
Background
The utility model provides a melt ice blade switch is a circuit breaker that is commonly used on the power transmission line, is equipped with electric blocking device on the melt ice blade switch generally, but lacks reliable mechanical blocking device, can't guarantee electric power system's safe and stable operation, and general mechanical blocking device can only realize the state locking of closing or separating brake, if the publication number is: CN218769167U, which discloses a protection device for preventing on-load knife switch from locking, through the connection and cooperation of a lock pin and a lock hole, the exciting coil is electrified to realize the mechanical locking requirement, so as to prevent the knife switch from on-load switch-off, but the protection of mechanical locking is not carried out on switch-on, thus easily causing misoperation accidents.
Disclosure of Invention
The utility model aims to provide an error-proof mechanical locking device for an ice melting knife switch, which is used for locking a transmission connecting rod of the ice melting knife switch by virtue of a movable block capable of sliding vertically and two end limiting concave through holes arranged on the movable block, so as to realize the foolproof and error-proof functions.
The embodiment of the utility model is realized by the following technical scheme: the utility model provides a mechanical locking device of ice-melt switch mistake prevention, the switch includes base, main shaft and transmission connecting rod, and this locking device is fixed in base below and main shaft coaxial coupling, but has the perpendicular movable block that slides in the locking device, and the movable block is equipped with the spacing concave type through-hole in both ends, transmission connecting rod sliding connection in concave type through-hole.
Further, the locking device also comprises a cam and a spring, wherein the cam is abutted between the top of the inner wall of the locking device and the movable block, and the spring is uniformly distributed between the bottom of the inner wall of the locking device and the movable block.
Further, the locking device also comprises a brake connecting rod for controlling the cam to rotate, the brake connecting rod comprises a rotating shaft, a connecting rod and an operating rod, one end of the rotating shaft penetrates into the locking device to be fixed with the cam, and the other end of the rotating shaft is rotationally connected with the operating rod through the connecting rod.
Further, the pushing distance of the cam is larger than or equal to the thickness of the transmission connecting rod, and the maximum drift diameter of the cam is larger than the maximum gap between the top end of the inner wall of the locking device and the movable block.
Further, the periphery of the movable block is in sliding fit with the inner wall of the locking device.
Further, the locking device is made of insulating materials.
The utility model has at least the following advantages and beneficial effects: the transmission connecting rod in the closing and opening states is locked through the movable block capable of sliding vertically and the two-end limiting concave through holes arranged on the movable block, so that the mechanical locking requirements of closing and opening of the disconnecting link are met, and misoperation accidents are effectively avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a mechanical locking device for preventing error of an ice-melting knife switch;
FIG. 2 is a top view of an anti-false mechanical locking device for an ice-melting knife switch;
FIG. 3 is a schematic view of the cross-sectional structure of the A-A in FIG. 2 according to the present utility model;
FIG. 4 is a schematic diagram of a brake link of a device in error-proof mechanical locking of an ice-melting knife switch;
FIG. 5 is a top view of a lockout device in an ice-melting knife switch anti-mismachine lockout device provided by the utility model;
FIG. 6 is a schematic view of the cross-sectional structure B-B of FIG. 5 according to the present utility model;
icon: 1-knife switch, 11-base, 12-main shaft, 13-transmission connecting rod, 2-locking device, 21-movable block, 210-concave through hole, 22-cam, 23-spring, 24-brake connecting rod, 241-rotation axis, 242-connecting rod, 243-operation rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
As shown in fig. 1-3, the embodiment mainly discloses an anti-misoperation locking device of an ice melting knife valve, which is used for realizing the mechanical locking requirements of opening and closing of the ice melting knife valve, and has the advantages of simple operation, high reliability and convenient installation. The locking device 2 is coaxially connected with the main shaft 12 of the knife switch 1, is fixedly arranged below the base 11 of the knife switch 1 through screw installation, a movable block 21 capable of vertically sliding is arranged in the locking device 2, and a concave through hole 210 with two limiting ends is formed in the movable block 21, so that the transmission connecting rod 13 of the knife switch 1 can slide in the concave through hole 210 and can be locked at two ends of the concave through hole 210. It should be noted that, it should be ensured that the transmission link 13 can just correspond to the closing state of the knife switch 1 at one side of the concave through hole 210.
Further, as shown in fig. 3, the locking device 2 further includes a cam 22 and a spring 23, the cam 22 is abutted between the top of the inner wall of the locking device 2 and the movable block 21, and the spring 23 is uniformly distributed between the bottom of the inner wall of the locking device 2 and the movable block 21, so that the rotating cam 22 can enable the movable block 21 to slide vertically up and down, thereby controlling whether the transmission link 13 can rotate or not, and further controlling locking and unlocking of the knife switch 1.
As shown in fig. 4-6, the locking device 2 further includes a brake link 24 for controlling the rotation of the cam 22, where the brake link 24 includes a rotation shaft 241, a connection rod 242 and an operation rod 243, one end of the rotation shaft 241 penetrates into the locking device 2 to be fixed with the cam 22, and the other end is rotationally connected with the operation rod 243 through the connection rod 242, when the knife switch 1 is in a switch-on or switch-off state, due to the elastic force, the transmission link 13 is limited at one end of the concave through hole 210, so as to prevent the transmission link 13 from rotating, and the operation rod 243 is pulled down to drive the connection rod 242 to rotate so as to realize the rotation of the cam 22 fixed with the rotation shaft 241, and further the movable block 21 is pushed down, so that the rotation operation of the transmission link 13 can be performed, thereby realizing the fool-proof and error-proof functions, and effectively avoiding the safety risks caused by error operation.
It should be noted that the pushing distance of the cam 22 is greater than or equal to the thickness of the transmission link 13, that is, the range of up-down movement of the movable block 21 caused by the rotation of the cam 22 should be greater than or equal to the thickness of the transmission link 13, so as to ensure that the transmission link 13 can be completely locked at the end of the concave through hole 210. In addition, the maximum diameter of the cam 22 is larger than the maximum gap between the top end of the inner wall of the locking device 2 and the movable block 21, so that the cam 22 is prevented from rotating excessively, that is, the cam 22 rotates to press the movable block 21 downwards, so that the transmission connecting rod 13 can freely rotate, and the movable block 21 cannot move downwards further due to the compression limit of the spring 23, at the moment, the distance between the top end of the inner wall of the locking device 2 and the movable block 21 is the maximum gap, and the diameter of the cam 22 needs to be larger than the maximum gap, so that the cam 22 can be prevented from rotating excessively.
In addition, the periphery of the movable block 21 is in sliding fit with the inner wall of the locking device 2, so that the collision between the movable block 21 and the inner wall of the locking device 2 can be effectively reduced, the relative transverse displacement of the movable block 21 in the locking device 2 is reduced, the abrasion structure is prevented, and the service life of the device is prolonged.
The locking device 2 is made of insulating materials, can realize the function of isolation protection, and improves the safety of operation.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a mechanical locking device is prevented to ice-melt switch, switch (1) include base (11), main shaft (12) and transmission connecting rod (13), its characterized in that, locking device (2) are fixed in base (11) below with main shaft (12) coaxial coupling, but have perpendicular gliding movable block (21) in locking device (2), movable block (21) are equipped with the spacing concave through-hole (210) in both ends, transmission connecting rod (13) sliding connection in concave through-hole (210).
2. The mechanical locking device for the ice-melting disconnecting link according to claim 1, wherein the locking device (2) further comprises a cam (22) and a spring (23), the cam (22) is abutted between the top of the inner wall of the locking device (2) and the movable block (21), and the spring (23) is uniformly distributed between the bottom of the inner wall of the locking device (2) and the movable block (21).
3. An ice-melting knife switch anti-misoperation mechanical locking device as claimed in claim 2, wherein the locking device (2) further comprises a brake connecting rod (24) for controlling the rotation of the cam (22), the brake connecting rod (24) comprises a rotating shaft (241), a connecting rod (242) and an operating rod (243), one end of the rotating shaft (241) penetrates into the locking device (2) to be fixed with the cam (22), and the other end is rotationally connected with the operating rod (243) through the connecting rod (242).
4. The mechanical locking device for the ice melting knife switch, as claimed in claim 2, wherein the pushing distance of the cam (22) is larger than or equal to the thickness of the transmission connecting rod (13), and the maximum drift diameter of the cam (22) is larger than the maximum gap between the top end of the inner wall of the locking device (2) and the movable block (21).
5. An ice-melting knife switch anti-misoperation mechanical locking device as claimed in claim 1, wherein the periphery of the movable block (21) is in sliding fit with the inner wall of the locking device (2).
6. An ice-melting knife switch anti-misoperation mechanical locking device as claimed in claim 1, characterized in that the locking device (2) is made of an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321898407.1U CN220651854U (en) | 2023-07-18 | 2023-07-18 | Error-preventing mechanical locking device for ice melting knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321898407.1U CN220651854U (en) | 2023-07-18 | 2023-07-18 | Error-preventing mechanical locking device for ice melting knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220651854U true CN220651854U (en) | 2024-03-22 |
Family
ID=90291876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321898407.1U Active CN220651854U (en) | 2023-07-18 | 2023-07-18 | Error-preventing mechanical locking device for ice melting knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220651854U (en) |
-
2023
- 2023-07-18 CN CN202321898407.1U patent/CN220651854U/en active Active
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