CN208580644U - A kind of built-in type of respiration metal expander - Google Patents
A kind of built-in type of respiration metal expander Download PDFInfo
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- CN208580644U CN208580644U CN201821325241.3U CN201821325241U CN208580644U CN 208580644 U CN208580644 U CN 208580644U CN 201821325241 U CN201821325241 U CN 201821325241U CN 208580644 U CN208580644 U CN 208580644U
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- ring flange
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- flanged pipe
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Abstract
The utility model relates to power high voltage equipment fields, a kind of built-in type of respiration metal expander, including ring flange, flanged pipe, sealing ring, expander main body and bolt, the expander main body is fixed on ring flange bottom surface, the flanged pipe perpendicular to flange side surface is equipped at the ring flange axle center, ring flange top surface is equipped with the threaded hole of several circular flanged pipe settings, the threaded hole and position of positioning hole correspond to one by one, in the flanged pipe inserting to mounting hole and make ring flange top surface and tank cover bottom surface opposite, the sealing ring is between ring flange top surface and tank cover bottom surface and is sleeved on the outside of flanged pipe, the bolt passes through location hole and connect with threaded hole, so that sealing ring is compressed between ring flange and tank cover, and it realizes and is sealed between fuel tank internal and the external world.
Description
Technical field
The utility model relates to power high voltage equipment field, what especially a kind of power high voltage interiors of products used has interior
Set type of respiration metal expander.
Background technique
Metallic bellow expander is widely used in high voltage oil immersion power equipment, and usage mode is divided into external and built-in
Formula, novel built-in type of respiration metal expander is to improve connector, respiratory siphon in original basis, keeps product more reliable, more
Stable operation.
Former type of respiration metal expander is cooperated using respiratory siphon external screw thread and nut, and expander taboo is fastened on fuel tank upper cover
On plate, stripped thread phenomenon is easy to appear because of Torque Control existing defects, when screwing.It is more demanding to device security.
Therefore designing one kind and being stably connected with expander respiratory siphon and seal the sealing structure of respiratory siphon position is industry
Interior urgent need.
Utility model content
To solve the above problems, the utility model provides a kind of built-in type of respiration metal expander, expansion of metal tool
There is respiratory siphon position seals effect good, the characteristics of stable structure is not easy stripped thread.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of built-in type of respiration metal expander is arranged in oil for electric power case, which has tank cover,
The tank cover is equipped with for mounting hole and is fitted around several location holes in hole；The built-in type of respiration metal expander
Including ring flange, flanged pipe, sealing ring, expander main body and bolt, the expander main body is fixed on ring flange bottom surface, described
The flanged pipe perpendicular to flange side surface is equipped at ring flange axle center, ring flange top surface is equipped with the spiral shell of several circular flanged pipe settings
Pit, the threaded hole and position of positioning hole correspond to one by one, in flanged pipe inserting to mounting hole and make ring flange top surface and
Tank cover bottom surface is opposite, and the sealing ring is between ring flange top surface and tank cover bottom surface and is sleeved on the outer of flanged pipe
Portion, the bolt passes through location hole and connect with threaded hole, so that sealing ring is compressed between ring flange and tank cover, and real
It is sealed between existing fuel tank internal and the external world.
Preferably, the flanged pipe extends to one direction above ring flange.
Preferably, the seal ring set is mounted in the outside of bolt, so that sealing is realized in the gap of bolt and location hole.
Preferably, the location hole is threaded hole, the bolt and location hole are threadedly coupled.
Preferably, the location hole is distributed at equal intervals around mounting hole.
Preferably, the top of the ring flange has annular groove, the sealing ring is mounted in groove.
Preferably, the top surface of tank cover is stretched out on the top of the flanged pipe, and the top section of the flanged pipe is external
Equipped with external screw thread.
Preferably, the flanged pipe and ring flange are integrally formed.
Preferably, the ring flange is connected with tank cover reinforcement of weld.
Using the beneficial effects of the utility model are:
Ring flange is fixed on fuel tank top cover bottom surface by bolt by this metal expander, by screwing bolts by sealing ring pressure
System realizes fuel tank internal and extraneous sealing between ring flange and fuel tank top cover, which can guarantee fuel tank and expansion
It is connected reliably between device, and can ensure sealing effect, while the design of this structure is simple, the implementation cost is low, and structure is reliable, has
Good promotion effect and economic benefit.
Detailed description of the invention
Fig. 1 is the built-in type of respiration metal expander structural schematic diagram of the utility model.
Fig. 2 is the portion A partial enlarged view in Fig. 1.
Appended drawing reference includes:
1- lower cover, 2- expander, 3- upper end cover, 4- flanged pipe, 5- ring flange, 6- bolt, 7- sealing ring, 8- screw rod,
9- nut, 10- tank cover.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing.
As shown in Figure 1 and Figure 2, the present embodiment provides a kind of built-in type of respiration metal expanders, are arranged in oil for electric power case
Interior, which has tank cover 10, and tank cover 10 is equipped with for mounting hole and is fitted around several location holes in hole；
Built-in type of respiration metal expander: including ring flange 5, flanged pipe 4, sealing ring 7,2 main body of expander and bolt 6, expander 2
Main body is fixed on 5 bottom surface of ring flange, and the flanged pipe 4 perpendicular to 5 end face of ring flange, 5 top surface of ring flange are equipped at 5 axle center of ring flange
Equipped with the threaded hole that several circular flanged pipes 4 are arranged, the threaded hole and position of positioning hole correspond to one by one, the inserting of flanged pipe 4 to peace
In dress hole and make 5 top surface of ring flange and 10 bottom surface of tank cover opposite, sealing ring 7 is located at 5 top surface of ring flange and tank cover
Between 10 bottom surfaces and it is sleeved on the outside of flanged pipe 4, bolt 6 passes through location hole and connect with threaded hole, so that sealing ring 7 is pressed
Between ring flange 5 and tank cover 10, and realizes and sealed between fuel tank internal and the external world.
As shown in Figure 1, in the present embodiment, 2 main body of expander includes lower cover 1, upper end cover 3 and is located at lower cover 1, upper end
The wavy metal tube portion of expander 2 between lid 3, lower cover 1 and 3 centre of upper end cover are equipped with through-hole, pass through screw rod 8
The mode cooperated with nut 9, so that the position of 2 main body of the direction of metal bellows portion retracts and expander is fixed.
Preferably, the top of ring flange 5 has annular groove, sealing ring 7 is mounted in groove.The effect of groove is
Avoid sealing ring 7 slide laterally or portion reversion
In the present embodiment, sealing ring 7 is put into groove first, a mounting hole is processed on tank cover 10,
Around mounting hole process four threaded holes, while will around flanged pipe 4 process four threaded holes, to flanged pipe 4 by down toward
On inserting to mounting hole after, rotary flange disk 5, by four threaded holes around the threaded hole and mounting hole on ring flange 5 by
One is opposite, then the threaded hole screwed on threaded hole and ring flange 5 on tank cover 10 by screw from top to bottom.
As shown in Fig. 2, by being compressed between ring flange 5 and tank cover 10 tightly, sealing ring 7 rises sealing ring 7 at this time
To leakproof fuel cell inside and extraneous effect.
In the present embodiment, flanged pipe 4 extends to 5 top one direction of ring flange.
Preferably, sealing ring 7 is sleeved on the outside of bolt 6, so that sealing is realized in the gap of bolt 6 and location hole.
Location hole is threaded hole, and bolt 6 and location hole are threadedly coupled, and the link position of bolt 6 and tank cover 10 is same
Reliably, and certain sealing effect is realized.
Location hole is distributed at equal intervals around mounting hole, so that the extruding force that sealing ring 7 receives is uniform, sealing effect
It is more preferably reliable.
The top surface of tank cover 10 is stretched out on the top of flanged pipe 4, and the top section of flanged pipe 4 is external equipped with external screw thread.It is convenient
Nut is clamped outside flanged pipe 4, sundries in transportational process is avoided to fall into expander 2.
In order to enable 2 sound construction of this expander, flanged pipe 4 and ring flange 5 are integrally formed.Ring flange 5 and tank cover
The connection of 10 reinforcement of welds.
Expander 2 is by upper end cover 3 and flanged joint, and flange groove arrangement sealing ring 7, flanged pipe 4 passes through flange welding
On upper end cover 3, flange is used with fuel tank upper cover plate equipped with 4-M6 countersunk head internal screw thread and is threadedly coupled.
The utility model equally uses flange and fuel tank screw connection structure, realization will be communicated with the atmosphere inside expander 2
Expander 2 is run under normal pressure state, greatly improves the security performance of product, overcomes the product leakage occurred by stripped thread
Oily phenomenon, has the characteristics that safety and environmental protection.
Ring flange 5 is fixed on fuel tank top cover bottom surface by bolt 6 by this metal expander 2, will be sealed by screwing bolts 6
Ring 7 is compressed between ring flange 5 and fuel tank top cover, realizes fuel tank internal and extraneous sealing, which can guarantee fuel tank
It is connected reliably between expander 2, and can ensure sealing effect, while the design of this structure is simple, the implementation cost is low, and structure can
It leans on, there is good promotion effect and economic benefit.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
It, in specific embodiments and applications can be with many changes may be made, as long as these variations are without departing from this with novel thought
The design of utility model, belongs to the protection scope of the utility model.
Claims (9)
1. a kind of built-in type of respiration metal expander is arranged in oil for electric power case, it is characterised in that: the top of oil-tank has
Tank cover, the tank cover are equipped with for mounting hole and are fitted around several location holes in hole；The built-in type of respiration
Metal expander includes ring flange, flanged pipe, sealing ring, expander main body and bolt, and the expander main body is fixed on flange
It tries to get to the heart of a matter face, the flanged pipe perpendicular to flange side surface is equipped at the ring flange axle center, ring flange top surface is equipped with several ring methods
The threaded hole of blue pipe setting, the threaded hole and position of positioning hole correspond to one by one, in the flanged pipe inserting to mounting hole and make
Ring flange top surface and tank cover bottom surface are opposite, and the sealing ring is between ring flange top surface and tank cover bottom surface and is set with
In the outside of flanged pipe, the bolt passes through location hole and connect with threaded hole, so that sealing ring is compressed on ring flange and fuel tank
Between cover board, and realizes and sealed between fuel tank internal and the external world.
2. built-in type of respiration metal expander according to claim 1, it is characterised in that: the flanged pipe is to ring flange
Top one direction extends.
3. built-in type of respiration metal expander according to claim 1, it is characterised in that: the seal ring set is mounted in spiral shell
The outside of bolt, so that sealing is realized in the gap of bolt and location hole.
4. built-in type of respiration metal expander according to claim 1, it is characterised in that: the location hole is screw thread
Hole, the bolt and location hole are threadedly coupled.
5. built-in type of respiration metal expander according to claim 1, it is characterised in that: the location hole is equidistant
It is distributed in around mounting hole.
6. built-in type of respiration metal expander according to claim 1, it is characterised in that: the top of the ring flange has
There is annular groove, the sealing ring is mounted in groove.
7. built-in type of respiration metal expander according to claim 1, it is characterised in that: stretch on the top of the flanged pipe
The top surface of tank cover out, and the top section of the flanged pipe is external equipped with external screw thread.
8. built-in type of respiration metal expander according to claim 1, it is characterised in that: the flanged pipe and ring flange
It is integrally formed.
9. built-in type of respiration metal expander according to claim 1, it is characterised in that: the ring flange and fuel tank cap
The connection of plate reinforcement of weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821325241.3U CN208580644U (en) | 2018-08-17 | 2018-08-17 | A kind of built-in type of respiration metal expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821325241.3U CN208580644U (en) | 2018-08-17 | 2018-08-17 | A kind of built-in type of respiration metal expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208580644U true CN208580644U (en) | 2019-03-05 |
Family
ID=65512251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821325241.3U Active CN208580644U (en) | 2018-08-17 | 2018-08-17 | A kind of built-in type of respiration metal expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208580644U (en) |
-
2018
- 2018-08-17 CN CN201821325241.3U patent/CN208580644U/en active Active
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