CN218957601U - Knife switch - Google Patents
Knife switch Download PDFInfo
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- CN218957601U CN218957601U CN202223101613.3U CN202223101613U CN218957601U CN 218957601 U CN218957601 U CN 218957601U CN 202223101613 U CN202223101613 U CN 202223101613U CN 218957601 U CN218957601 U CN 218957601U
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- insulating
- contact
- disconnecting link
- slide
- knife switch
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Abstract
The utility model relates to the field of electrical testing, in particular to a disconnecting link switch, which comprises a disconnecting link part and an insulating slideway, wherein the disconnecting link part is arranged on the insulating slideway in a sliding way and is hinged with the insulating slideway, and further comprises a contact assembly, the contact assembly comprises a first contact part and a second contact part which are arranged at intervals, the first contact part is connected with a power input end, the second contact part is connected with a power output end, and the disconnecting link part is configured to be capable of rotating to be communicated with the first contact part and the second contact part; the contact assembly is in a normally open state when not in contact with the disconnecting link, and the disconnecting link part is arranged on the insulating slideway, so that the disconnecting link part can slide along the insulating slideway until the single contact assembly can be communicated, and the rest contact assemblies are in a disconnection state, so that the disconnecting link and the leakage protection switch which are connected in series are correspondingly conducted on the single contact assembly, the conduction effect on a single power socket is realized, and the frequent replacement of a test power box is avoided.
Description
Technical Field
The utility model relates to the field of electrical testing, in particular to a disconnecting link switch.
Background
For safety reasons, the national grid company requires that the on-site power supply for testing be strictly "one machine one brake one protection", i.e. that a single disconnecting link and a single leakage protection switch, which are required to be connected in series, be used only in correspondence to a single power jack.
The existing alternating current power supply box comprises a box body and a supporting plate provided with a control part, wherein a disconnecting link is fixedly arranged on the supporting plate and connected with a leakage protector in series and then connected with a plurality of jacks in series, but the structure cannot meet the power consumption requirement of a test power supply with 'one machine one brake one protection'. The existing solution is to replace the multi-hole socket with a single-hole socket to meet the use requirement, but in the actual use process, the socket needs to be plugged and unplugged frequently, is extremely easy to damage and poor in durability, so that at least one set of standby alternating current power supply box needs to be prepared for each test, and a great amount of time is wasted on carrying equipment.
Therefore, a technical scheme is needed at present to solve the technical problem that the single-jack alternating current power box is poor in durability.
Disclosure of Invention
The utility model aims at: aiming at the technical problem that the single-jack alternating current power box is poor in durability, the disconnecting link switch is provided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a disconnecting link switch, includes disconnecting link portion and insulating slide, disconnecting link portion slide set up in insulating slide and with insulating slide articulates and connects, still includes the contact subassembly, the contact subassembly is including the first contact portion and the second contact portion that the interval set up, first contact portion connects the power input, the second contact portion connects the power output, disconnecting link portion is constructed and can rotate to the intercommunication first contact portion with the second contacts portion.
According to the disconnecting link switch disclosed by the utility model, when the contact assembly is not in contact with the disconnecting link, the normally open state is realized, and the disconnecting link part is arranged on the insulating slideway, so that the disconnecting link part can slide along the insulating slideway until the single contact assembly can be communicated, and the rest contact assemblies are in the disconnection state, so that the disconnecting link and the leakage protection switch which are connected in series correspondingly conduct the single contact assembly, the conduction effect on a single power socket is realized, and the frequent replacement of a test power box is avoided.
As a preferable mode of the utility model, the insulation slideway comprises a linear slideway, and the second contact parts are arranged at two end parts of the extension direction of the insulation slideway. The movement direction of the knife switch part is single, and the knife switch part slides smoothly along a straight line; by arranging the second contact part at the end part of the linear slideway, the knife switch can be connected with the contact component at any end, and the contact component at the other end is in an off state.
As a preferred scheme of the utility model, the insulation slideway comprises an arc slideway or an annular slideway, and the contact assembly is arranged on the arc outer side of the insulation slideway. The knife switch part can be connected with one group of contact assemblies simultaneously by arranging the contact assemblies at the outer sides of the arcs.
As a preferable scheme of the utility model, the knife switch part comprises a knife switch blade and an insulating push rod, one end of the knife switch blade is fixedly connected with the insulating push rod, the other end of the knife switch blade is provided with a connecting part, the connecting part is connected with the insulating slideway, and the connecting part is hinged with the knife switch blade. The specific structure of the knife switch part.
As a preferable scheme of the utility model, the number of the knife blades is two or three. The three-phase three-wire circuit uses three knife blades.
As a preferable mode of the present utility model, an insulating connecting rod is provided between adjacent connecting portions. The arrangement of the insulating connecting rod ensures that the knife switch blades of the knife switch part are connected stably, realizes synchronous movement of a plurality of knife switch blades, ensures that the whole structure of the knife switch part is firmer, and improves the durability.
As a preferable scheme of the utility model, the insulating slideway is provided with a limiting piece, and the limiting piece is used for limiting the moving range of the disconnecting link part on the insulating slideway. The limiting piece can limit the moving range of the knife switch part, so that safety is guaranteed.
As a preferable mode of the present utility model, the insulating slideway, the first contact portion and the second contact portion are all fixedly arranged on an insulating base. The insulating base is connected with the current conventional backup pad, provides the whole fixed of switch.
As a preferable scheme of the utility model, an insulating shell is arranged on the insulating base, the insulating shell covers the connection part of the disconnecting link part and the insulating slideway, the insulating shell covers the contact assembly, the insulating shell is connected with the insulating base through bolts, a strip-shaped hole for the disconnecting link part to rotate is arranged on the insulating shell, the disconnecting link part penetrates through the strip-shaped hole, one end of the disconnecting link part is arranged in the insulating shell, and the other end of the disconnecting link part is arranged outside the insulating shell. The insulating shell is arranged to provide safety protection, and the strip-shaped holes are arranged to prevent the disconnecting link from rotating to be blocked.
As a preferred embodiment of the present utility model, the second contact portion is connected to a socket. The single socket is connected for output, so that the single disconnecting link and the single drain protection switch which are connected in series are ensured to be used only corresponding to the single power jack.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the disconnecting link switch disclosed by the utility model, when the contact assembly is not in contact with the disconnecting link, the normally open state is realized, and the disconnecting link part is arranged on the insulating slideway, so that the disconnecting link part can slide along the insulating slideway until the single contact assembly can be communicated, and the rest contact assemblies are in the disconnection state, so that the disconnecting link and the leakage protection switch which are connected in series correspondingly conduct the single contact assembly, the conduction effect on a single power socket is realized, and the frequent replacement of a test power box is avoided.
2. The disconnecting link switch disclosed by the utility model is simple in structure and easy to manufacture, solves the technical problem that a single disconnecting link and a single leakage protection switch which are connected in series are used only corresponding to a single power socket, improves the usability of a testing device, shortens the preparation time of current testing, and has good economic value.
Drawings
FIG. 1 is a schematic diagram of a knife switch according to embodiment 1;
fig. 2 is a schematic structural diagram of a knife switch according to embodiment 3.
Icon:
the device comprises a 1-disconnecting link part, a 2-insulating slideway, a 3-first contact part, a 4-second contact part, a 5-insulating push rod, a 6-disconnecting link piece, a 7-connecting part, an 8-insulating connecting rod and a 9-insulating base.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The utility model provides a knife switch as shown in fig. 1, includes knife switch portion 1 and insulating slide 2, knife switch portion 1 slide set up in insulating slide 2 and with insulating slide 2 articulates and connects, still includes the contact subassembly, the contact subassembly is including the first contact portion 3 and the second contact portion 4 that the interval set up, the power input is connected to first contact portion 3, the power output is connected to second contact portion 4, knife switch portion 1 is constructed to rotate to the intercommunication first contact portion 3 with second contact portion 4.
Specifically, the insulation slide way 2 includes a linear slide way, and both end portions of the extension direction of the insulation slide way 2 are provided with the second contact portion 4.
Specifically, the knife switch part 1 comprises a knife switch sheet 6 and an insulating push rod 5, one end of the knife switch sheet 6 is fixedly connected with the insulating push rod 5, a connecting part 7 is arranged at the other end of the knife switch sheet, the connecting part 7 is connected with the insulating slideway 2, and the connecting part 7 is hinged with the knife switch sheet 6.
Specifically, the number of the knife blades 6 is two, and two lines are adopted for connection.
Specifically, an insulating connecting rod 8 is disposed between the adjacent connecting portions 7.
Specifically, a limiting piece is arranged on the linear slideway, and the limiting piece is used for limiting the moving range of the knife switch part 1 on the linear slideway.
Specifically, the locating part sets up on the body of sharp slide, the locating part is protruding structure, and when the switch portion slides to protruding structure position along the equidirectional, protruding structure hinders switch portion to continue the motion to play limiting displacement.
Specifically, the insulating slideway 2, the first contact portion 3 and the second contact portion 4 are all fixedly disposed on the insulating base 9.
Specifically, set up insulating housing on the insulating base 9, insulating housing cover establishes switch portion 1 with insulating slide 2's junction, insulating housing cover establishes touch the subassembly, insulating housing with insulating base 9 bolted connection, be provided with on the insulating housing and be used for supplying switch portion 1 pivoted strip hole, switch portion 1 passes the strip hole, switch portion 1's one end set up in the insulating housing, the other end set up in outside the insulating housing.
Specifically, the strip-shaped hole is used for the knife switch blade 6 to penetrate through, so that the connection part of the knife switch part 1 and the insulation slide way 2 and the contact assembly are both positioned in the insulation shell, and the insulation push rod 5 is arranged outside the insulation shell, thereby not only ensuring the safety of personnel, but also not influencing the rotation of the knife switch part.
Specifically, the second contact portion 4 is connected to the socket.
Specifically, the test power supply box comprises a box body, a power supply inlet wire end and a power supply outlet wire end, wherein the power supply inlet wire end is embedded in the box body, the second contact portion 4 is connected with the power supply inlet wire end through a circuit, the first contact portion 3 is connected with the power supply outlet wire end through a circuit, and the disconnecting link switch is fixedly arranged on the supporting plate.
When the disconnecting link switch is used, the disconnecting link part 1 arranged on the insulating slideway 2 is moved, so that the disconnecting link part 1 can be selectively connected with any one of the contact components at two ends of the insulating slideway 2, and the socket is connected with the second contact part 4 of the contact component, thereby realizing the safety power utilization requirement of 'one machine one brake one protection', solving the technical problems of poor durability and easy damage of a single disconnecting link switch and a single socket which are independently connected on a test power box, and avoiding the technical problem of frequently replacing the power box by switching between different contact components through the disconnecting link part 1.
Example 2
The structure of the knife switch of this embodiment is the same as that of embodiment 1, and is different from embodiment 1 in that three knife blades 6 are provided, and correspondingly, three second contact portions 4/first contact portions 3 are provided.
Example 3
The structure of a knife switch shown in fig. 2 is the same as that of embodiment 1, and is different from embodiment 1 in that the insulating slideway 2 is an annular slideway, and the contact assembly is disposed outside the annular slideway.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides a knife switch, its characterized in that, includes knife switch portion (1) and insulating slide (2), knife switch portion (1) slide set up in insulating slide (2) and with insulating slide (2) articulated connection still includes the contact subassembly, contact subassembly including first contact portion (3) and the second contact portion (4) that the interval set up, first contact portion (3) connect the power input, second contact portion (4) connect the power output, knife switch portion (1) are constructed to rotate to communicate first contact portion (3) with second contact portion (4).
2. A knife switch according to claim 1, characterized in that the insulating slide (2) comprises a rectilinear slide, both ends of the insulating slide (2) in the direction of extension being provided with the second contact portions (4).
3. A knife switch according to claim 1, wherein the insulating slide (2) comprises an arc-shaped slide or an annular slide, and the contact assembly is arranged outside the arc-shape of the insulating slide (2).
4. A knife switch according to claim 1, wherein the knife switch part (1) comprises a knife blade (6) and an insulating push rod (5), one end of the knife blade (6) is fixedly connected with the insulating push rod (5), the other end is provided with a connecting part (7), the connecting part (7) is connected with the insulating slideway (2), and the connecting part (7) is hinged with the knife blade (6).
5. A knife switch according to claim 4, characterized in that the knife blades (6) are arranged in two or three.
6. A knife switch according to claim 5, characterised in that an insulating connecting rod (8) is arranged between adjacent said connecting portions (7).
7. A knife switch according to claim 1, characterized in that the insulating slide (2) is provided with a limiting member for limiting the range of movement of the knife gate (1) on the insulating slide (2).
8. A knife switch according to claim 1, characterized in that the insulating slideway (2), the first contact part (3) and the second contact part (4) are all fixedly arranged on an insulating base (9).
9. A disconnecting switch according to claim 8, wherein an insulating housing is arranged on the insulating base (9), the insulating housing covers the connection part of the disconnecting link part (1) and the insulating slideway (2), the insulating housing covers the contact assembly, the insulating housing is in bolted connection with the insulating base (9), a strip-shaped hole for the disconnecting link part (1) to rotate is arranged on the insulating housing, the disconnecting link part (1) passes through the strip-shaped hole, one end of the disconnecting link part (1) is arranged in the insulating housing, and the other end of the disconnecting link part is arranged outside the insulating housing.
10. A knife switch according to claim 1, characterized in that the second contact part (4) is connected to a socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223101613.3U CN218957601U (en) | 2022-11-22 | 2022-11-22 | Knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223101613.3U CN218957601U (en) | 2022-11-22 | 2022-11-22 | Knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218957601U true CN218957601U (en) | 2023-05-02 |
Family
ID=86108149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223101613.3U Active CN218957601U (en) | 2022-11-22 | 2022-11-22 | Knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218957601U (en) |
-
2022
- 2022-11-22 CN CN202223101613.3U patent/CN218957601U/en active Active
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