CN210378782U - Contact mechanism for earthing switch - Google Patents
Contact mechanism for earthing switch Download PDFInfo
- Publication number
- CN210378782U CN210378782U CN201921434057.7U CN201921434057U CN210378782U CN 210378782 U CN210378782 U CN 210378782U CN 201921434057 U CN201921434057 U CN 201921434057U CN 210378782 U CN210378782 U CN 210378782U
- Authority
- CN
- China
- Prior art keywords
- contact
- fixed seat
- fixing base
- movable contact
- adjusting bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a contact mechanism for earthing switch, including fixing base, connecting plate, clamp plate and movable contact, on the fixing base stationary contact, the fixing base is box type structure, is provided with the opening above the fixing base of box type structure, and the connecting plate setting is in the bottom of fixing base, is provided with the screw hole on the relative both sides side of fixing base, and adjusting bolt and screw hole cooperate, and adjusting bolt's one end extends to in the fixing base, and the part that adjusting bolt extends to in the fixing base is provided with the extrusion spring; the movable contact disect insertion is to two clamp plates between, and the clamp plate extrudes the movable contact under extrusion spring's effect, therefore the contact that can be fine between movable contact and the clamp plate can not appear contacting the not good condition, and the fixing base is connected with the stationary contact moreover, just so makes to contact well between movable contact and the stationary contact, satisfies the operation requirement that can be fine, simple structure makes convenient to use moreover.
Description
Technical Field
The utility model relates to an earthing switch technical field, in particular to contact mechanism for earthing switch.
Background
An earthing switch is a mechanical switch for the earthing part of a circuit, which can carry current under abnormal conditions (for example short-circuit current) for a certain time, but is not required to carry current under normal circuit conditions. The movable contact and the fixed contact of the existing grounding switch are two mutually contacted plates, the movable contact and the fixed contact are combined together through a pressing mechanism arranged on the grounding switch, and the movable contact and the fixed contact cannot be well contacted after being used for a period of time in the contact mode of the movable contact and the fixed contact, so that the use requirement cannot be well met.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a contact mechanism for earthing switch that movable contact and stationary contact are good, can satisfy operation requirement.
In order to solve the technical problem, the utility model discloses a technical scheme does: the utility model provides a contact mechanism for earthing switch, which comprises a fixed base, the connecting plate, clamp plate and movable contact, on the fixing base stationary contact, the fixing base is box type structure, be provided with the opening above the fixing base of box type structure, the connecting plate sets up the bottom at the fixing base, be provided with the screw hole on the relative both sides side of fixing base, adjusting bolt and screw hole cooperation, adjusting bolt's one end extends to in the fixing base, the part that adjusting bolt extended to in the fixing base is provided with the extrusion spring, the tip of the part that adjusting bolt extended to in the fixing base is provided with the extruded article, the one end and the extruded article of extrusion spring offset, the other end and the fixing base lateral wall side of extrusion spring offset, the clamp plate sets up two, the lower extreme of clamp plate is fixed on the connecting plate, the movable contact is located.
In a preferred embodiment, the connecting plate is fixed on the fixing seat through bolts.
As a preferred embodiment, the extrusion piece is a cylinder with a blind hole.
As a preferred embodiment, the end of the pressure plate remote from the connection plate is provided with a flare.
As a preferred embodiment, the fixed seat is welded on the static contact.
Adopt above-mentioned technical scheme the utility model discloses the beneficial effect who obtains does: the movable contact disect insertion is to two clamp plates between, and the clamp plate extrudes the movable contact under extrusion spring's effect, therefore the contact that can be fine between movable contact and the clamp plate can not appear contacting the not good condition, and the fixing base is connected with the stationary contact moreover, just so makes to contact well between movable contact and the stationary contact, satisfies the operation requirement that can be fine, simple structure makes convenient to use moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a fixed seat; 2-connecting plates; 3, pressing a plate; 4-moving contact; 5-adjusting the bolt; 6-extruding a spring; 7-extrusion; 8-flaring part.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The utility model is further described with the attached drawings, which makes the technical personnel better implement the utility model, the embodiment of the utility model is a contact mechanism for the grounding switch, which comprises a fixed seat 1, a connecting plate 2, a pressing plate 3 and a movable contact 4, the fixed seat 1 is arranged on a fixed seat 1 stationary contact, the fixed seat 1 is in a box structure, the upper surface of the fixed seat 1 of the box structure is provided with an opening, the connecting plate 2 is arranged at the bottom of the fixed seat 1 and is fixed on the fixed seat 1 through a bolt, the two opposite side surfaces of the fixed seat 1 are provided with a threaded hole, an adjusting bolt 5 is matched with the threaded hole, one end of the adjusting bolt 5 extends into the fixed seat 1, the part of the adjusting bolt 5 extending into the fixed seat 1 is provided with an extrusion spring 6, the end part of the adjusting bolt 5 extending into the fixed seat 1 is provided with an extrusion piece 7, the blind hole end is sleeved on the adjusting bolt 5, one end of the extrusion spring 6 is abutted against the extrusion part 7, the other end of the extrusion spring 6 is abutted against the side face of the side wall of the fixed seat 1, the two pressing plates 3 are arranged, the lower ends of the pressing plates 3 are fixed on the connecting plate 2, the movable contact 4 is positioned between the two pressing plates 3, and one side, far away from the movable contact 4, of each pressing plate 3 is abutted against the extrusion part 7.
In order to conveniently insert the movable contact 4 between the two pressing plates 3, one end of the pressing plate 3, which is far away from the connecting plate 2, is provided with an opening part 8, and the opening of the opening part 8 is larger, so that the movable contact 4 can easily enter between the two pressing plates 3; in order to ensure that the electric conductivity between the fixed seat 1 and the stationary contact is good, the fixed seat 1 is welded on the stationary contact.
The embodiment of the utility model provides a movable contact 4 disect insertion is between two clamp plates 3, and clamp plate 3 extrudes movable contact 4 under extrusion spring 6's effect, consequently contact that can be fine between movable contact 4 and the clamp plate 3, the not good condition of contact can not appear, and fixing base 1 is connected with the stationary contact moreover, just so makes contact well between movable contact 4 and the stationary contact, and satisfying operation requirement that can be fine, simple structure makes convenient to use moreover.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. A contact mechanism for a ground switch, characterized in that: the novel movable contact pressing device comprises a fixed seat, a connecting plate, clamp plates and a movable contact, the fixed seat is fixed on a stationary contact of the fixed seat, the fixed seat is of a box type structure, an opening is formed in the upper face of the fixed seat of the box type structure, the connecting plate is arranged at the bottom of the fixed seat, threaded holes are formed in the side faces of the two opposite sides of the fixed seat, an adjusting bolt is matched with the threaded holes, one end of the adjusting bolt extends into the fixed seat, an extrusion spring is arranged on the portion, extending to the fixed seat, of the adjusting bolt, an extrusion piece is arranged at the end of the portion, extending to the fixed seat, of the adjusting bolt, one end of the extrusion spring abuts against the extrusion piece, the other end of the extrusion spring abuts against the side face of the side.
2. The contact point contact mechanism for an earthing switch according to claim 1, characterized in that: the connecting plate is fixed on the fixed seat through a bolt.
3. The contact point contact mechanism for an earthing switch according to claim 1, characterized in that: the extrusion piece is a cylinder provided with a blind hole.
4. The contact point contact mechanism for an earthing switch according to claim 1, characterized in that: one end of the pressing plate, which is far away from the connecting plate, is provided with an opening part.
5. The contact point contact mechanism for an earthing switch according to claim 4, characterized in that: the fixing seat is connected to the static contact in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921434057.7U CN210378782U (en) | 2019-08-30 | 2019-08-30 | Contact mechanism for earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921434057.7U CN210378782U (en) | 2019-08-30 | 2019-08-30 | Contact mechanism for earthing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210378782U true CN210378782U (en) | 2020-04-21 |
Family
ID=70253461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921434057.7U Expired - Fee Related CN210378782U (en) | 2019-08-30 | 2019-08-30 | Contact mechanism for earthing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210378782U (en) |
-
2019
- 2019-08-30 CN CN201921434057.7U patent/CN210378782U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 Termination date: 20210830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |