CN211507485U - Closing self-locking mechanism of knife switch - Google Patents
Closing self-locking mechanism of knife switch Download PDFInfo
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- CN211507485U CN211507485U CN201921346993.2U CN201921346993U CN211507485U CN 211507485 U CN211507485 U CN 211507485U CN 201921346993 U CN201921346993 U CN 201921346993U CN 211507485 U CN211507485 U CN 211507485U
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- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 15
- 238000005034 decoration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of electrical switches, in particular to a knife switch closing self-locking mechanism; comprises a first fixed knife (1), a movable knife (2) and a second fixed knife (4); one end of the movable cutter (2) is hinged with the fixed cutter (1), and the other end of the movable cutter is provided with a round hole (3); a second fixed knife (4) is arranged at the round hole (3) when the movable knife (2) is in the horizontal position, a self-locking switch mechanism is arranged on the second fixed knife (4), and the self-locking switch mechanism and the round hole (3) when the movable knife (2) is in the horizontal position form self-locking; a hook rod (9) is arranged above the self-locking switch structure; after the self-locking anti-disengaging structure of the switch handle is installed, the installation environment of the switch is expanded from the original plane installation to vertical installation, hoisting and the like, the installation form is expanded, and the installation space of the switch is effectively saved; and through the design of switch auto-lock anticreep, guaranteed the reliability that the switch closed, enlarged the service environment of this switch.
Description
Technical Field
The utility model relates to an electrical switch technical field especially relates to a closed self-locking mechanism of sword switch.
Background
Knife switches, also known as knife switches, are generally used for ac and dc low voltage (not more than 500V) circuits that do not need to be frequently switched off and closed, and the operating current of the knife switches cannot exceed the rated value under the rated voltage. On a machine tool, a knife switch is mainly used as a power switch and is not generally used for switching on or off the working current of a motor;
the traditional knife switch is fixed by the friction between the movable knife and the fixed knife, and after vibration or long-term abrasion in the use process, the risk of automatic disconnection of the switch can exist, so that a novel knife switch structure needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a problem among the above-mentioned background of effectual solution has proposed a closed self-locking mechanism of sword switch, and concrete technical scheme is as follows:
a knife switch closing self-locking mechanism comprises a first fixed knife (1), a movable knife (2) and a second fixed knife (4); one end of the movable cutter (2) is hinged with the first fixed cutter (1), and the other end of the movable cutter is provided with a round hole (3); a second fixed knife (4) is arranged at the round hole (3) when the movable knife (2) is in the horizontal position, a self-locking switch mechanism is arranged on the second fixed knife (4), and the self-locking switch mechanism and the round hole (3) when the movable knife (2) is in the horizontal position form self-locking; a hook rod (9) is arranged above the self-locking switch structure;
the self-locking switch structure comprises a connecting rod (5) fixedly mounted on the second fixed knife (4), the side wall of the connecting rod (5) is hinged with a lock hook (6), the lower end of the lock hook (6) is provided with a rebound device, and the upper end of the lock hook is of a trapezoidal structure (7);
preferably, the rebounding device comprises a compression spring (8) arranged at the bottom of the lock hook (6);
preferably, a boss (10) matched with the round hole (3) is arranged at the end part of the hook rod (9);
the utility model has the advantages that after the self-locking anti-disengaging structure of the switch handle is installed, the installation environment of the switch is expanded from the original plane installation to vertical installation, hoisting and the like, the installation form is expanded, and the installation space of the switch is effectively saved; and through the design of switch auto-lock anticreep, guaranteed the reliability that the switch closed, enlarged the service environment of this switch.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: the device comprises a first fixed cutter 1, a movable cutter 2, a round hole 3, a second fixed cutter 4, a connecting rod 5, a lock hook 6, a trapezoidal structure 7, a pressure spring 8, a hook rod 9 and a boss 10.
Detailed Description
The technical scheme of the patent is further explained in detail by combining the specific embodiment;
a knife switch closing self-locking mechanism comprises a first fixed knife 1, a movable knife 2 and a second fixed knife 4; one end of the movable cutter 2 is hinged with the first fixed cutter 1, and the other end of the movable cutter is provided with a round hole 3; a second fixed knife 4 is arranged at the round hole 3 when the movable knife 2 is in the horizontal position, a self-locking switch mechanism is arranged on the second fixed knife 4, and the self-locking switch mechanism and the round hole 3 when the movable knife 2 is in the horizontal position form self-locking; a hook rod 9 is arranged above the self-locking switch structure; the end part of the hook rod 9 is provided with a boss 10 matched with the round hole 3;
the self-locking switch structure comprises a connecting rod 5 fixedly installed on the second fixed knife 4, the side wall of the connecting rod 5 is hinged with a locking hook 6, the lower end of the locking hook 6 is provided with a rebound device, and the upper end of the locking hook is of a trapezoidal structure 7; the rebounding device comprises a pressure spring 8 arranged at the bottom of the lock hook 6;
the specific using process is as follows:
when the movable knife needs to be opened, the hook rod is pressed into the circular hole of the movable knife, the hook is extruded through the boss on the hook rod, the hook is separated from the circular hole of the movable knife, and the movable knife is rotated out of the fixed knife through the driving of the hook rod;
after the self-locking anti-disengaging structure of the switch handle is installed, the installation environment of the switch is expanded from the original plane installation to vertical installation, hoisting and the like, the installation form is expanded, and the installation space of the switch is effectively saved; and the switch is designed to be self-locked and anti-falling, so that the switch closing reliability is ensured, and the service environment of the switch is enlarged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the invention.
Claims (3)
1. A knife switch closing self-locking mechanism is characterized by comprising a first fixed knife (1), a movable knife (2) and a second fixed knife (4); one end of the movable cutter (2) is hinged with the first fixed cutter (1), and the other end of the movable cutter is provided with a round hole (3); a second fixed knife (4) is arranged at the round hole (3) when the movable knife (2) is in the horizontal position, a self-locking switch mechanism is arranged on the second fixed knife (4), and the self-locking switch mechanism and the round hole (3) when the movable knife (2) is in the horizontal position form self-locking; a hook rod (9) is arranged above the self-locking switch structure;
the self-locking switch structure comprises a connecting rod (5) fixedly mounted on the second fixed knife (4), wherein the side wall of the connecting rod (5) is hinged with a lock hook (6), the lower end of the lock hook (6) is provided with a rebounding device, and the upper end of the lock hook is of a trapezoidal structure (7).
2. Knife switch closing self-locking mechanism according to claim 1, characterized in that the springback means comprise a compression spring (8) mounted at the bottom of the locking hook (6).
3. The knife switch closing self-locking mechanism according to claim 1, wherein a boss (10) matched with the round hole (3) is arranged at the end part of the hook rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921346993.2U CN211507485U (en) | 2019-08-19 | 2019-08-19 | Closing self-locking mechanism of knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921346993.2U CN211507485U (en) | 2019-08-19 | 2019-08-19 | Closing self-locking mechanism of knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211507485U true CN211507485U (en) | 2020-09-15 |
Family
ID=72394724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921346993.2U Active CN211507485U (en) | 2019-08-19 | 2019-08-19 | Closing self-locking mechanism of knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211507485U (en) |
-
2019
- 2019-08-19 CN CN201921346993.2U patent/CN211507485U/en active Active
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