CN211428059U - Vacuum interrupter draws apart from frock - Google Patents
Vacuum interrupter draws apart from frock Download PDFInfo
- Publication number
- CN211428059U CN211428059U CN202020240769.1U CN202020240769U CN211428059U CN 211428059 U CN211428059 U CN 211428059U CN 202020240769 U CN202020240769 U CN 202020240769U CN 211428059 U CN211428059 U CN 211428059U
- Authority
- CN
- China
- Prior art keywords
- pull rod
- vacuum interrupter
- rod
- pulling
- thick bamboo
- 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.)
- Active
Links
Images
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a vacuum interrupter pulls open apart from frock belongs to vacuum interrupter technical field. This vacuum interrupter pulls open apart from frock, including being used for placing a support section of thick bamboo and one end on moving the end cover board be used for with move the pull rod that the conducting rod can dismantle and be connected, the pull rod is worn to establish in supporting a section of thick bamboo, the pulling pull rod can drive and move the conducting rod and remove, and support a section of thick bamboo and can restrict the pull rod and rotate along the axial. The utility model discloses a vacuum interrupter draws back apart from frock, the one end of pull rod is connected with the movable conducting rod, draws the pull rod and drives the movable conducting rod to move, realizes drawing back vacuum interrupter moving contact and static contact to certain open distance, produces torsion to the bellows when avoiding drawing the movable conducting rod through the screw thread closes soon; wear to establish in supporting a section of thick bamboo through the pull rod, and support a section of thick bamboo and can restrict the pull rod and rotate, further inject the rotational motion of pull rod, realized preventing turning round of bellows, improved the life of bellows, and then improved the stability of vacuum interrupter quality.
Description
Technical Field
The utility model relates to a vacuum interrupter technical field especially relates to a vacuum interrupter pulls open apart from frock.
Background
Before the vacuum arc-extinguishing chamber leaves a factory, tests such as high-voltage aging, vacuum degree test, voltage-withstanding detection and the like need to be carried out to ensure the quality of products. When the tests are carried out, the moving contact and the fixed contact of the vacuum arc extinguish chamber need to be pulled apart to a certain distance. The existing opening distance pulling tool comprises a support cylinder and a connector, wherein the support cylinder is generally supported on a movable end cover plate of an arc extinguish chamber, the connector is connected with a movable conducting rod of the arc extinguish chamber through threads, and when the opening distance pulling tool is used, the connector is rotated to pull a movable contact and a fixed contact to a certain opening distance through thread screwing; however, the following problems exist in the pull-apart tool: the connector can produce torsion to moving the conducting rod through the screw thread closure in-process, sprain the bellows easily, lead to bellows gas leakage or reduce the bellows life-span.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vacuum interrupter draws apart from frock avoids the bellows to produce torsion, improves the life of bellows, and then improves the stability of vacuum interrupter quality.
In order to realize the purpose, the utility model adopts the following technical scheme:
the utility model provides a vacuum interrupter draws back apart from frock, vacuum interrupter is including moving the conducting rod and moving the end cover board, draws back apart from frock including being used for placing a support section of thick bamboo and one end on moving the end cover board and be used for and move the pull rod that the conducting rod can dismantle and be connected, and the pull rod is worn to establish in supporting a section of thick bamboo, and the pulling pull rod can drive and move the conducting rod and remove, and supports a section of thick bamboo and can restrict the pull rod and rotate along the axial.
Optionally, a first plane is arranged on the circumferential direction of the pull rod, a second plane corresponding to the first plane is arranged on the inner hole wall of the supporting cylinder, and the first plane is attached to the second plane.
Optionally, a positioning hole is formed in the support cylinder, a positioning shaft is arranged on the pull rod, the positioning shaft is sleeved in the positioning hole, the first plane is arranged on the periphery of the positioning shaft, and the second plane is arranged on the inner wall of the positioning hole.
Optionally, two first planes are symmetrically arranged on the positioning shaft, and two second planes corresponding to the two first planes are arranged on the inner wall of the positioning hole.
Optionally, the vacuum interrupter pulls open apart from frock still including the connector of connecting at the other end of pull rod to the connector can the butt at the terminal surface of supporting a section of thick bamboo, and the pulling connector can drive the pull rod and remove.
Optionally, the pull rod is a screw rod, and the connector is in threaded connection with the screw rod.
Optionally, a gasket is connected to an end of the pull rod, and the gasket is disposed between the pull rod and the movable conductive rod.
Optionally, the end of the pull rod is provided with a mounting hole, and the gasket is mounted in the mounting hole.
Optionally, the movable end cover plate is connected with the support cylinder in a sealing manner through a sealing ring.
Optionally, the bottom of the support cylinder is provided with a sealing groove for mounting the sealing ring.
The utility model has the advantages that:
the utility model provides a vacuum interrupter draws apart from frock, one end of pull rod is connected with the movable conducting rod, draws the pull rod and drives the movable conducting rod to move, realizes drawing vacuum interrupter moving contact and static contact to certain open distance, avoids drawing the movable conducting rod through the screw thread closure soon, has avoided producing torsion to the bellows when the pull rod rotates; the supporting cylinder is placed on the movable end cover plate, and the supporting cylinder and the pull rod respectively apply force to the movable end cover plate and the movable conducting rod, so that the pull rod can pull the movable conducting rod; wear to establish in supporting a section of thick bamboo through the pull rod, and support a section of thick bamboo and can restrict the pull rod and rotate, further inject the rotational motion of pull rod, realized preventing turning round of bellows, improved the life of bellows, and then improved the stability of vacuum interrupter quality.
Drawings
Fig. 1 is a cross-sectional view of a vacuum interrupter pull-apart distance tool according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a support cylinder provided in accordance with an embodiment of the present invention;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a cross-sectional view of a drawbar in accordance with an embodiment of the present invention;
fig. 5 is a top view of fig. 4.
In the figure:
1-sealing ring; 2-a support cylinder; 21-positioning holes; 22-a seal groove; 23-a first inner bore; 24-a second bore; 211-a second plane; 3-a gasket; 4-a pull rod; 41-positioning shaft; 42-mounting holes; 411-a first plane; 5-connecting head.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The vacuum arc extinguish chamber comprises a moving contact, a fixed contact, a moving conducting rod, a static conducting rod, a corrugated pipe, a static end cover plate and a moving end cover plate. Before leaving factory, high-pressure aging, vacuum degree test, pressure resistance test and other tests need to be carried out to ensure the quality of products. When the tests are carried out, the moving contact and the fixed contact of the vacuum arc extinguish chamber need to be pulled apart to a certain distance. At present, the existing pulling distance tool comprises a thread and an arc extinguish chamber movable conducting rod for connection, the movable and fixed contacts are pulled to a certain distance through the thread screwing, however, the movable conducting rod can generate torsion in the screwing process, the corrugated pipe is easily twisted, and the air leakage of the corrugated pipe or the service life of the corrugated pipe is shortened.
For solving the above-mentioned problem, this embodiment provides a vacuum interrupter draws apart from frock, as shown in fig. 1, including being used for placing support section of thick bamboo 2 and one end on moving the end cover board be used for with move the conducting rod can dismantle the pull rod 4 of being connected, pull rod 4 wears to establish in supporting section of thick bamboo 2, pulling pull rod 4 can drive and move the conducting rod and remove, and support section of thick bamboo 2 can restrict pull rod 4 and rotate along the axial. The supporting cylinder 2 is placed on the movable cover plate, one end of the pull rod 4 is connected with the movable conducting rod, the pull rod 4 is pulled to drive the movable conducting rod to move, the movable contact and the static contact of the vacuum arc extinguish chamber are pulled to a certain distance, the movable conducting rod is prevented from being pulled by screwing of threads, and the situation that the pull rod 4 rotates to generate torsion on the corrugated pipe is avoided; wear to establish in supporting section of thick bamboo 2 through pull rod 4, and support section of thick bamboo 2 and can restrict pull rod 4 and rotate, further inject the rotational motion of pull rod 4, realized preventing of bellows and turned round, improved the life of bellows, and then improved the stability of vacuum interrupter quality.
With the improvement and continuous perfection of the research and development manufacturing technology of the high-voltage circuit breaker, the voltage grade and the breaking capacity of the circuit breaker are also continuously improved, so that the circuit breaker has stricter requirements on the quality. In order to ensure the product quality, the factory inspection of the matched product is very important, especially key components. The vacuum arc-extinguishing chamber is a core component of the circuit breaker, so that the in-plant inspection, particularly the voltage-resistant detection, is very important, and the pull-apart distance tool provided by the embodiment can also be applied to the in-plant inspection so as to prolong the service life of the corrugated pipe.
As shown in fig. 2 to 5, in order to realize that the support cylinder 2 limits the rotation of the pull rod 4, optionally, a first plane 411 is arranged on the circumferential direction of the pull rod 4, a second plane 211 corresponding to the first plane 411 is arranged on the inner hole wall of the support cylinder 2, the first plane 411 is attached to the second plane 211, and the rotation of the positioning shaft 41 in the positioning hole 21 is limited by the cooperation of the first plane and the second plane 211, so that the pull rod 4 moves along the axial direction of the support cylinder 2; optionally, a positioning hole 21 is formed in the support cylinder 2, a positioning shaft 41 is arranged on the pull rod 4, the positioning shaft 41 is sleeved in the positioning hole 21, the first plane 411 is arranged on the periphery of the positioning shaft 41, and the second plane 211 is arranged on the inner wall of the positioning hole 21; because the planes are in contact and move relatively, the processing precision of the planes is high, the pull rod 4 and the support cylinder 2 are limited only at the positions of the positioning shaft 41 and the positioning hole 21, and the processing difficulty is reduced.
Optionally, two or more positioning planes may be respectively and correspondingly disposed on the positioning shaft 41 and the positioning hole 21, so as to ensure better fitting between the positioning shaft 41 and the positioning hole 21; in this embodiment, the symmetry is provided with two first planes 411 on the location axle 41, sets up two second planes 211 that correspond with two first planes 411 on the inner wall of locating hole 21, and two locating planes that the symmetry set up can reduce the processing and assemble the degree of difficulty, can strengthen the cooperation effect simultaneously. In other embodiments, a sliding table may be axially disposed on the positioning shaft 41, and a sliding groove matched with the sliding table is formed in the positioning hole 21, so as to facilitate the movement of the pull rod 4 in the support cylinder 2 and prevent the pull rod 4 from rotating in the support cylinder 2.
Optionally, with continued reference to fig. 2, a first inner hole 23 and a second inner hole 24 are formed in the support cylinder 2, wherein the size of the hole of the first inner hole 23 is determined according to the diameter of the movable end cover plate; the aperture size of the second inner hole 24 is designed according to the outer diameter size of the movable conducting rod.
Optionally, the vacuum arc extinguish chamber distance-pulling tool further comprises a connector 5 connected to the other end of the pull rod 4, the pull rod 4 can be driven to move by pulling the connector 5, the connector 5 can abut against the end face of the support cylinder 2, and the position of the connector 5 can be set to be a zero position; when the connector 5 is pulled to move, the distance between the movable contact and the fixed contact can be obtained by measuring the distance between the connector 5 and the supporting cylinder 2, so that the movable contact and the fixed contact can be pulled to a certain distance according to actual test requirements, and the test accuracy of the vacuum arc-extinguishing chamber is further ensured; alternatively, the distance may be measured directly with a caliper.
In the prior art, a thread is arranged on the movable conducting rod, and the pull rod 4 is connected with the movable conducting rod through the thread. In the embodiment, the pull rod 4 is a screw, the connector 5 is in threaded connection with the screw, and the pulling distance size is calculated by the thread pitch of the connector 5 and the number of turns of screwing, so that the measurement error is avoided; alternatively, the connector may be a lock nut; further optionally, lock nut is hexagon nut, when the number of revolutions is not the integer circle, more conveniently runs through and calculates the number of revolutions of nut, more conveniently calculates and draws apart from the size. Optionally, the use steps of the vacuum interrupter pull-apart distance tool are as follows:
firstly, screwing a screw rod into the thread of the movable conducting rod; secondly, the supporting cylinder 2 is placed on the movable end cover plate of the vacuum arc-extinguishing chamber, and at the moment, the positioning shaft 41 of the screw rod penetrates through the positioning hole 21 of the supporting cylinder 2 and is matched with the same; thirdly, screwing the connector 5 onto the screw threads until the connector 5 just contacts with the top of the support cylinder 2, and then enabling the connector 5 to reach a zero position; fourthly, the screwing connector 5 drives the screw rod to move, so that the movable contact and the fixed contact of the vacuum arc extinguish chamber are pulled to a certain distance, and the movable conducting rod and the fixed conducting rod of the vacuum arc extinguish chamber are pulled to a certain distance; optionally, the support cylinder 2 is fixed to prevent the pull rod 4 from moving as a whole when pulled, thereby ensuring the effect of pulling the distance apart.
In the use process of the tool, the movable conducting rod is connected with the pull rod 4, optionally, the end part of the pull rod 4 is connected with the gasket 3, and the gasket 3 is arranged between the pull rod 4 and the movable conducting rod so as to prevent the pull rod 4 from colliding with the movable conducting rod of the vacuum arc extinguish chamber in the use process. In this embodiment, the end of the pull rod 4 is provided with a mounting hole 42, and the gasket 3 is mounted in the mounting hole 42, so that the structure is compact. Optionally, the gasket 3 includes nylon or other plastic material to play a role of buffer between the pull rod 4 and the movable conductive rod.
For example, when a vacuum interrupter is subjected to high-voltage aging, high voltage higher than rated voltage needs to be applied to two ends of a movable contact and a static contact of the vacuum interrupter, and the vacuum interrupter is prone to external breakdown in an atmospheric environment, so that a medium with better insulating property needs to be used for realizing external insulation protection of the vacuum interrupter. Generally, at home and abroad, an insulating medium such as insulating liquid, transformer oil or sulfur hexafluoride gas is used more and more, and a vacuum arc-extinguishing chamber to be aged is filled in a sealed tank filled with the insulating medium. In order to avoid insulating medium to enter into the vacuum arc extinguishing chamber, optionally, move end cover plate and support cylinder 2 sealing connection, avoid insulating medium to enter into the vacuum arc extinguishing chamber and cause the influence to the bellows, and then influence product quality, optionally, realize moving end cover plate and support cylinder 2 sealing connection through sealing washer 1, simple structure is reliable, and sealed effectual. In this embodiment, a seal groove 22 for installing seal ring 1 is opened at the bottom of support cylinder 2, and seal ring 1 is installed in seal groove 22, simple structure, and is convenient for processing and assembling.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a vacuum interrupter draws back apart from frock, vacuum interrupter is including moving the conducting rod and moving the end cover board, a serial communication port, draw apart from frock including being used for placing move support section of thick bamboo (2) and one end on the end cover board be used for with move pull rod (4) that the conducting rod can dismantle the connection, pull rod (4) are worn to establish support section of thick bamboo (2) in, the pulling pull rod (4) can drive move the conducting rod and remove, just support section of thick bamboo (2) can restrict pull rod (4) are followed the axial and are rotated.
2. The vacuum arc-extinguishing chamber distance-separating tool according to claim 1, characterized in that a first plane (411) is arranged on the circumference of the pull rod (4), a second plane (211) corresponding to the first plane (411) is arranged on the inner hole wall of the support cylinder (2), and the first plane (411) is attached to the second plane (211).
3. The vacuum arc-extinguishing chamber distance-pulling tool according to claim 2, wherein a positioning hole (21) is formed in the supporting cylinder (2), a positioning shaft (41) is arranged on the pull rod (4), the positioning shaft (41) is sleeved in the positioning hole (21), the first plane (411) is arranged on the periphery of the positioning shaft (41), and the second plane (211) is arranged on the inner wall of the positioning hole (21).
4. The vacuum interrupter pulling distance tool according to claim 3, wherein the positioning shaft (41) is symmetrically provided with two first planes (411), and the inner wall of the positioning hole (21) is provided with two second planes (211) corresponding to the two first planes (411).
5. The vacuum arc-extinguishing chamber distance-pulling tool according to claim 1, further comprising a connector (5) connected to the other end of the pull rod (4), wherein the connector (5) can abut against the end face of the support cylinder (2), and the pull rod (4) can be driven to move by pulling the connector (5).
6. The vacuum interrupter draws back apart from frock according to claim 5, characterized in that, pull rod (4) is the screw rod, connector (5) with the screw rod passes through threaded connection.
7. The vacuum interrupter pulling distance tool according to claim 1, wherein a gasket (3) is connected to an end of the pull rod (4), and the gasket (3) is disposed between the pull rod (4) and the movable conducting rod.
8. The vacuum arc extinguish chamber distance-pulling tool according to claim 7, wherein the end of the pull rod (4) is provided with a mounting hole (42), and the gasket (3) is mounted in the mounting hole (42).
9. The vacuum interrupter pulling distance tool according to claim 1, wherein the movable end cover plate is connected with the support cylinder (2) in a sealing manner through a sealing ring (1).
10. The vacuum interrupter pulling distance tool according to claim 9, wherein a sealing groove (22) for mounting the sealing ring (1) is formed at the bottom of the supporting cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020240769.1U CN211428059U (en) | 2020-03-02 | 2020-03-02 | Vacuum interrupter draws apart from frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020240769.1U CN211428059U (en) | 2020-03-02 | 2020-03-02 | Vacuum interrupter draws apart from frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211428059U true CN211428059U (en) | 2020-09-04 |
Family
ID=72245192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020240769.1U Active CN211428059U (en) | 2020-03-02 | 2020-03-02 | Vacuum interrupter draws apart from frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211428059U (en) |
-
2020
- 2020-03-02 CN CN202020240769.1U patent/CN211428059U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2476074A (en) | Plug | |
| CN1013994B (en) | Apparatus of electromagnetic flowmeter eleotrode | |
| CN211428059U (en) | Vacuum interrupter draws apart from frock | |
| US2698363A (en) | Pipe line indicator for scrapers | |
| CN103680834B (en) | A kind of transformer oil storage of piston structure | |
| CN202599713U (en) | Combined needle-shaped oil extraction valve for on-line monitoring of transformer oil | |
| CN209878936U (en) | Experimental device for be used for studying cable insulation damage cumulative effect | |
| CN209293787U (en) | A kind of underground electrical equipment connection sealing structure and pressure measuring unit | |
| CN106644557B (en) | Testing device for transformer insulating material under same condition aging stage sampling | |
| US5663859A (en) | Disconnector switch for disconnecting a high-voltage arrester from ground | |
| CN203631250U (en) | Transformer oil conservator of piston structure | |
| CN212868427U (en) | Sealing device of inflating cabinet | |
| CN101355242A (en) | Reactive movable sealing piece for pneumatic compartment straightly-moving type circuit breaker | |
| CN205282762U (en) | Sealed plug of capacitive sensor lead wire suitable for under vacuum, high voltage ring border | |
| CN220084960U (en) | Electroscope capable of realizing angle conversion and self-locking positioning | |
| CN207834096U (en) | A kind of novel bushing shell for transformer head seal structure | |
| CN213455654U (en) | Ultrasonic gas meter | |
| Feng et al. | Analysis and Research on Influence of Temperature on Dielectric Loss of Epoxy Impregnated Paper Capacitive Bushings | |
| RU138399U1 (en) | MEASURING OUTPUT OF HIGH VOLTAGE INPUT INSULATION PARAMETERS | |
| CN220509800U (en) | Temperature and pressure limiter | |
| CN214304042U (en) | Sealing device of turbocharger | |
| CN214743454U (en) | Gas insulated electrical equipment and valve body assembly thereof | |
| CN110005809B (en) | Device for sealing vacuum electronic device | |
| CN220040488U (en) | Circuit breaker mechanical property test cover plate | |
| CN218094572U (en) | Natural gas valve with gas leakage protection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |