CN209216876U - A kind of fixation device of shielding cylinder and ceramic cartridge - Google Patents
A kind of fixation device of shielding cylinder and ceramic cartridge Download PDFInfo
- Publication number
- CN209216876U CN209216876U CN201920095769.4U CN201920095769U CN209216876U CN 209216876 U CN209216876 U CN 209216876U CN 201920095769 U CN201920095769 U CN 201920095769U CN 209216876 U CN209216876 U CN 209216876U
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- China
- Prior art keywords
- shielding cylinder
- ceramic cartridge
- fixation device
- ceramic
- compression bar
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Abstract
The utility model discloses the fixation devices of a kind of shielding cylinder and ceramic cartridge, it is related to technical field of electric equipment, including ceramic cartridge, shielding cylinder and fixed mechanism are equipped in the ceramic cartridge, the contact of the shielding cylinder lower end connection vacuum interrupter, fixed mechanism is contradicted above the shielding cylinder, the utility model structure is simple, it is convenient to operate, by the way that fixed mechanism is arranged, the fixation of shielding cylinder and ceramic cartridge may be implemented, simultaneously, due to without soldering between shielding cylinder and ceramic cartridge, so that ceramic cartridge does not have stress of sealing, reduce the probability of high-voltage breakdown, it is suitable for large batch of in, it is used in low-voltage vacuum arc-extinguishing chamber, improve dependable with function.
Description
Technical field
The utility model relates to technical field of electric equipment, and in particular to a kind of fixed dress of shielding cylinder and ceramic cartridge
It sets.
Background technique
In the vacuum switch tube of ceramic structure, there are many shielding cylinder and ceramic cartridge fixing means, and have their own advantages and
Disadvantage, when using soldering, shielding cylinder is fixed on on the middle sealing ring of two section ceramic joinings, and Welding, structure is simple, can
Lean on, but when using method for welding due to the coefficient of expansion of the shielding cylinder material therefor coefficient of expansion at high temperature and ceramics not
Together, in order to reliable, often between shielding cylinder and ceramics added with transition material to reduce stress of sealing, make structure and work in this way
Skill becomes complicated, also increases cost.
Chinese Patent Application No. be CN105845493A disclose a kind of shielding cylinder and ceramic cartridge fixation device and its
Installation method, including shielding cylinder and ceramic cartridge, the inner wall of ceramic cartridge are equipped with one and enclose interior step, and interior step is equipped with several
With the consistent longitudinal notch in ceramic cartridge direction, interior step lower part is radially additionally provided with several grooves, the shielding cylinder it is outer
Wall is equipped with a circle convex ribs, and the bottom surface of convex ribs and the top surface of interior step cooperate, be additionally provided with and the groove on the outer wall of shielding cylinder
The advantages of quantity of the stud of cooperation, groove and stud is identical, the device is, avoids vacuum interrupter because shielding cylinder falls off
The failure of appearance, improves reliability and stability, and shielding cylinder and ceramic cartridge are fixed up although above-mentioned apparatus plays
Effect, but dismantle inconvenient, and often due to stuck cause damage parts when Rig up error, therefore can be further improved.
Utility model content
The purpose of this utility model is to provide the fixation devices of a kind of shielding cylinder and ceramic cartridge, to solve the prior art
In caused above-mentioned defects.
A kind of fixation device of shielding cylinder and ceramic cartridge, including ceramic cartridge, the ceramic cartridge is interior to be equipped with shielding cylinder
And fixed mechanism, the contact of the shielding cylinder lower end connection vacuum interrupter, the shielding cylinder top contradicts fixed mechanism, described
Fixed mechanism includes compression bar, and described compression bar one end is equipped with screw thread and is threadedly coupled connector, and the connector lower end is fixedly connected
The identical metal plate of several structures, one end of the sheetmetal side articulated linkage, the other end hinge contact pressure head of the connecting rod,
It is fixedly connected with spring between the adjacent links, V-shaped groove is provided among the contact pressure head, the V-shaped groove angle of release is 45 °,
The V-shaped groove is parallel to each other along the axis of compression bar and the axis of compression bar, and the compression bar top passes through ceramic cartridge upper end and passes through
Threaded cap fastening.
Preferably, the outer wall top of the shielding cylinder is equipped with a circle step.
Preferably, the inner wall of the ceramic cartridge upper end is equipped with several limited blocks arranged in a ring along its axis.
Preferably, the limited block lower end is equipped with transition circle cambered surface.
Preferably, the distance between described limited block is less than the numerical value of ceramic cartridge upper end diameter.
Preferably, the metal plate there are four and it is adjacent between metal plate be in 90 ° of angles.
Utility model has the advantages that structure is simple, it is convenient to operate, and by the way that fixed mechanism is arranged, may be implemented to shield
Cylinder and the fixation of ceramic cartridge, meanwhile, due to without being brazed between shielding cylinder and ceramic cartridge, so that ceramic cartridge does not seal
Scoop out power, reduce the probability of high-voltage breakdown, be suitable for it is large batch of used in, in low-voltage vacuum arc-extinguishing chamber, improve reliability
And practicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the fixed mechanism in the utility model with threaded cap.
Fig. 3 is the structural schematic diagram of fixed mechanism in the utility model.
Wherein, 1- ceramic cartridge, 2- shielding cylinder, 3- fixed mechanism, 4- compression bar, 5- connector, 6- metal plate, 7- connecting rod,
8- contacts pressure head, 9- spring, 10-V shape slot, 11- threaded cap, 12- step, 13- limited block, 14- transition circle cambered surface.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
As shown in Figure 1 to Figure 3, the fixation device of a kind of shielding cylinder and ceramic cartridge, including ceramic cartridge 1, the ceramics
Shielding cylinder 2 and fixed mechanism 3, the contact of 2 lower end of the shielding cylinder connection vacuum interrupter, the shielding cylinder 2 are equipped in shell 1
Top contradicts fixed mechanism 3, and the fixed mechanism 3 includes compression bar 4, and described 4 one end of compression bar is equipped with screw thread and is threadedly coupled connection
Part 5,5 lower end of connector are fixedly connected with the identical metal plate 6 of several structures, and the metal plate 6 is hinged at the one of connecting rod 7
It holds, the other end hinge contact pressure head 8 of the connecting rod 7, is fixedly connected with spring 9, the contact pressure head between the adjacent links 7
V-shaped groove 10 is provided among 8,10 angle of release of V-shaped groove is 45 °, and the V-shaped groove 10 is along the axis of compression bar 4 and the axis phase of compression bar 4
Mutually parallel, 4 top of compression bar passes through 1 upper end of ceramic cartridge and is fastened by threaded cap 11.
In the present embodiment, the outer wall top of the shielding cylinder 2 is equipped with a circle step 12.1 upper end of ceramic cartridge
Inner wall is equipped with several limited blocks 13 arranged in a ring along its axis.13 lower end of limited block is equipped with transition circle cambered surface 14.
In addition, the distance between described limited block 13 is less than the numerical value of 1 upper end diameter of ceramic cartridge.The metal plate 6 has
Four and it is adjacent between metal plate 6 be in 90 ° of angles.
The course of work and principle: when practical the utility model, by being rotated down compression bar 4, so that connecting rod 7 drives contact pressure
First 8 compress shielding cylinder 2, then tighten threaded cap 11, thus achieve the purpose that fixed ceramic cartridge 1 and shielding cylinder 2, and ceramic tube
Step 12 on the limited block 13 of 1 inner wall of shell, shielding cylinder 2 is avoided when dismantling part, and ceramic cartridge 1 is encountered in the rising of shielding cylinder 2
Damage parts are caused in upper end, between shielding cylinder 2 and ceramic cartridge 1 due to without soldering so that ceramic cartridge 1 is answered without sealing-in
Power reduces the probability of high-voltage breakdown, be suitable for it is large batch of used in, in low-voltage vacuum arc-extinguishing chamber, improve reliability, and tear open
It unloads conveniently, part convenient for safeguarding, the metal that contact generates during protecting ceramic cartridge 1 to avoid the arcing because of vacuum interrupter
Steam is scattered to 1 inner wall of ceramic shell, causes the reduction of 1 dielectric strength of ceramic cartridge, extends the service life of device, V-shaped groove
10 design so that contact pressure head 8 and the contact point of shielding cylinder 2 increase, improve stability, the design of spring 9, so that ceramic
Shell 2 and shielding cylinder 1 also have the space slightly loosened while having relatively fixed, are unlikely to because connection tension leads to part
It destroys.
Based on above-mentioned, the utility model structure is simple, and it is convenient to operate, and by the way that fixed mechanism 3 is arranged, shielding cylinder may be implemented
2 with the fixation of ceramic cartridge 1, meanwhile, due to without soldering between shielding cylinder 2 and ceramic cartridge 1, so that ceramic cartridge 1 does not have
Have stress of sealing, reduce the probability of high-voltage breakdown, be suitable for it is large batch of used in, in low-voltage vacuum arc-extinguishing chamber, improving can
By property and practicability.
As known by the technical knowledge, the utility model can pass through other essence without departing from its spirit or the reality of essential feature
Scheme is applied to realize.Therefore, embodiment disclosed above, in all respects are merely illustrative, and are not only
's.All changes that come within the scope of the invention or equivalents of the invention are by the utility model packet
Contain.
Claims (6)
1. the fixation device of a kind of shielding cylinder and ceramic cartridge, which is characterized in that including ceramic cartridge (1), the ceramic cartridge
(1) shielding cylinder (2) and fixed mechanism (3), the contact of shielding cylinder (2) the lower end connection vacuum interrupter, the screen are equipped in
It covers and contradicts fixed mechanism (3) above cylinder (2), the fixed mechanism (3) includes compression bar (4), and described compression bar (4) one end is equipped with screw thread
And connector (5) are threadedly coupled, connector (5) lower end is fixedly connected with the identical metal plate of several structures (6), the metal
Plate (6) is hinged at one end of connecting rod (7), the other end hinge contact pressure head (8) of the connecting rod (7), the adjacent links (7)
Between be fixedly connected with spring (9), is provided with V-shaped groove (10) among the contact pressure head (8), V-shaped groove (10) angle of release is 45 °,
The V-shaped groove (10) is parallel to each other along the axis of the axis and compression bar (4) of compression bar (4), and compression bar (4) top passes through ceramic tube
Shell (1) upper end is simultaneously fastened by threaded cap (11).
2. the fixation device of a kind of shielding cylinder according to claim 1 and ceramic cartridge, it is characterised in that: the shielding cylinder
(2) outer wall top is equipped with circle step (12).
3. the fixation device of a kind of shielding cylinder according to claim 2 and ceramic cartridge, it is characterised in that: the ceramic tube
The inner wall of shell (1) upper end is equipped with several limited blocks (13) arranged in a ring along its axis.
4. the fixation device of a kind of shielding cylinder according to claim 3 and ceramic cartridge, it is characterised in that: the limited block
(13) lower end is equipped with transition circle cambered surface (14).
5. the fixation device of a kind of shielding cylinder according to claim 4 and ceramic cartridge, it is characterised in that: the limited block
The distance between (13) it is less than the numerical value of ceramic cartridge (1) upper end diameter.
6. the fixation device of a kind of shielding cylinder according to claim 5 and ceramic cartridge, it is characterised in that: the metal plate
(6) there are four and it is adjacent between metal plate (6) be in 90 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920095769.4U CN209216876U (en) | 2019-01-21 | 2019-01-21 | A kind of fixation device of shielding cylinder and ceramic cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920095769.4U CN209216876U (en) | 2019-01-21 | 2019-01-21 | A kind of fixation device of shielding cylinder and ceramic cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209216876U true CN209216876U (en) | 2019-08-06 |
Family
ID=67467459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920095769.4U Active CN209216876U (en) | 2019-01-21 | 2019-01-21 | A kind of fixation device of shielding cylinder and ceramic cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209216876U (en) |
-
2019
- 2019-01-21 CN CN201920095769.4U patent/CN209216876U/en active Active
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