CN206694706U - A kind of bellows positioning joint - Google Patents
A kind of bellows positioning joint Download PDFInfo
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- CN206694706U CN206694706U CN201720242431.8U CN201720242431U CN206694706U CN 206694706 U CN206694706 U CN 206694706U CN 201720242431 U CN201720242431 U CN 201720242431U CN 206694706 U CN206694706 U CN 206694706U
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- flange
- inner tube
- outer tube
- bellows
- buffer spring
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Abstract
It the utility model is related to bellows field, more particularly to a kind of bellows positioning joint, including inner tube, outer tube, linear bearing and buffer spring, the linear bearing is plugged in outer tube, and said inner tube is plugged in linear bearing, and the outer tube can be relative to inner tube linear slide by linear bearing, the front end of outer tube is provided with first flange, the tail end of said inner tube is provided with second flange, and the buffer spring is socketed on outer tube, and the both ends of buffer spring are connected in outer tube and inner tube respectively.It is of the present utility model bellows closely to be connected in fixed component, and inner and outer tubes are connected on bellows and fixed component by first flange and second flange respectively, axial force caused by fixed component work can be passed to inner tube, active force is offset by inner tube extruding buffer spring, so as to buffer axial force caused by fixed component vibrations, the sealing property of bellows can be ensured, and improve the service life of bellows.
Description
Technical field
Bellows field is the utility model is related to, more particularly to a kind of bellows positioning joint.
Background technology
Bellows refers to the tubular elastomeric sensing element connected into foldable wrinkle piece along folding retractable direction.During work
Internally extended in the presence of pressure along tube length direction, movable end is produced the displacement with pressure into certain relation.It is led
Apply to the industries such as urban water supply and sewerage, heating power thermoelectricity, chemical industry, natural gas, coal gas.At present for bellows and fixed component
The front end that connected mode is typically employed in bellows sets flange, is connected bellows and fixed component through the flange by bolt
Be connected together, and some fixed components, for example, between the larger equipment of thrust or anchor block, the equipment of pumping plant or other vibrations it is stronger
Equipment and pipeline between because being connected using rigid flange, it, which shakes, can not only influence the service life of bellows, and shake
It is dynamic also to cause displacement screw, so that the junction of bellows and fixed component produces gap, so as to cause in bellows
Convey material leakage.
Utility model content
The purpose of this utility model is in view of the shortcomings of the prior art, there is provided a kind of line pipe positioning joint, can buffer
Axial force caused by fixed component vibrations, it is ensured that the sealing property of bellows, and improve the service life of bellows.
To solve the above problems, the utility model provides following technical scheme：
A kind of bellows positioning joint, including inner tube, outer tube, linear bearing and buffer spring, the linear bearing grafting
In outer tube, said inner tube is plugged in linear bearing, and the outer tube can be relative to inner tube linear slide, outside by linear bearing
The front end of pipe is provided with first flange, and the tail end of said inner tube is provided with second flange, and the buffer spring is socketed on outer tube, and slow
The both ends for rushing spring are connected in outer tube and inner tube respectively, and the front end of said inner tube is provided with spacing block piece, described under installment state
Inner tube and outer tube under the elastic acting force of buffer spring to two lateral movements, before the spacing block piece is connected to first flange
End.
Further, the back of the first flange is provided with six the first countersunk heads, and six first countersunk heads prolong the first method
Blue cylindrical circumferential direction is uniformly distributed.
Further, the top of first countersunk head is in hexangle type.
Further, the back of the second flange is provided with six the second countersunk heads, and six second countersunk heads prolong the first method
Blue cylindrical circumferential direction is uniformly distributed.
Further, the top of second countersunk head is in hexangle type.
Further, the first abutting part of a circular ring type is provided with the outer wall of the outer tube positioned at the lower end of first flange,
The second abutting part of a circular ring type, the both ends of the buffer spring are provided with the outer wall of said inner tube positioned at the lower end of second flange
It is connected to respectively on the first abutting part and the second abutting part.
Further, the spacing block piece is circular in one, and the front end of the first flange is provided with a rank inwardly settled
The step of ladder type, under installment state, said inner tube and outer tube are under the elastic acting force of buffer spring to two lateral movements, the limit
Position block piece is connected on the step of step type, and the spacing block piece is embedded in first flange.
Further, the spacing block piece is fixedly mounted on the front end of inner tube by multiple bolts.
Beneficial effect：A kind of bellows positioning joint of the present utility model, bellows can closely be connected in fixed component,
And inner and outer tubes are connected on bellows and fixed component by first flange and second flange respectively, when fixed component works
Caused axial force can be passed to inner tube, offset active force by inner tube extruding buffer spring, so as to buffer fixation
Axial force caused by part vibrations, it is ensured that the sealing property of bellows, and the service life of bellows is improved, and extruding
During, outer tube can reduce frictional resistance by linear bearing and inner and outer tubes are produced relative to inner tube linear slide
Abrasion, improve the service life of positioning joint, and linear bearing can play sealing effectiveness in itself, be further ensured that bellows
Sealing property.
Brief description of the drawings
Fig. 1 is the utility model dimensional structure diagram,
Fig. 2 is the assembling structure schematic diagram of the utility model and bellows,
Fig. 3 is the enlarged drawing at A in the utility model Fig. 2,
Fig. 4 is the installment state sectional view of the utility model and bellows,
Fig. 5 is that the utility model decomposes assembling structure schematic diagram.
Description of reference numerals：Inner tube 1, second flange 1a, the second countersunk head 1a1, spacing block piece 1b, the second abutting part 1c, outside
Pipe 2, first flange 2a, the first countersunk head 2a1, step 2a2, the first abutting part 2b, linear bearing 3, buffer spring 4.
Embodiment
With reference to Figure of description and embodiment, specific embodiment of the utility model is described in further detail：
A kind of bellows positioning joint according to Fig. 1 to Fig. 5, including inner tube 1, outer tube 2, linear bearing 3 and buffering
Spring 4, the linear bearing 3 are plugged in outer tube 2, and said inner tube 1 is plugged in linear bearing 3, and the outer tube 2 passes through straight line
Bearing 3 can be provided with first flange 2a relative to the linear slide of inner tube 1, the front end of outer tube 2, and first flange 2a fixes with bellows
Connection, the tail end of said inner tube 1 are provided with second flange 1a, and second flange 1a is connected with fixed component, 4 sets of the buffer spring
It is connected on outer tube 2, and the both ends of buffer spring 4 are connected in outer tube 2 and inner tube 1 respectively, the front end of said inner tube 1 is provided with spacing
Block piece 1b, under installment state, said inner tube 1 and outer tube 2 are under the elastic acting force of buffer spring 4 to two lateral movements, the limit
Position block piece 1b is connected to first flange 2a front end.
Said inner tube 1 and outer tube 2 are connected to bellows and fixed component by first flange 2a and second flange 1a respectively
On, axial force caused by fixed component work can be passed to inner tube 1, and buffer spring 4 is extruded by active force by inner tube 1
Offset, and during extruding, outer tube 2 can reduce frictional resistance relative to the linear slide of inner tube 1 by linear bearing 3,
And linear bearing 3 itself can play sealing function；After active force is offset, outer tube 2 is understood under the opposition of buffer spring 4,
Spacing block piece 1b is connected to first flange 2a front end, so as to avoid outer tube 2 from departing from inner tube 1.
Prolong first flange provided with six first countersunk heads 2a1, six the first countersunk head 2a1 in the back of the first flange 2a
2a cylindrical circumferential direction is uniformly distributed, and the top of the first countersunk head 2a1 is in hexangle type, the first countersunk head 2a1 built-in types
Hex nut is installed, being coordinated with the flange of soket head cap screw through bellows with hex nut can be by bellows and first flange
2a is fixedly connected.
Prolong first flange provided with six second countersunk heads 1a1, six the second countersunk head 1a1 in the back of the second flange 1a
2a cylindrical circumferential direction is uniformly distributed, and the top of the second countersunk head 1a1 is in hexangle type, the second countersunk head 1a1 built-in types
Hex nut is installed, with soket head cap screw through flange and the hex nut of fixed component coordinate can by second flange 1a with it is solid
Determine part connection.
The first abutting part 2b of a circular ring type is provided with the outer wall of the outer tube 2 positioned at first flange 2a lower end, it is described
It is provided with the second abutting part 1c of a circular ring type on the outer wall of inner tube 1 positioned at second flange 1a lower end, the two of the buffer spring 4
End is connected on the first abutting part 2b and the second abutting part 1c respectively.The buffer spring 4 can be connected to first flange respectively
On 2a and second flange 1a, it is contemplated that positioning joint is under good working condition, buffer spring 4 can be by first flange 2a and the
Two flange 1a lower surface covering, and the installation of positioning joint is to be installed in fixed component by the cooperation of screw and nut
Between bellows, therefore buffer spring 4 can block the installation of screw；First abutting part 2b and first flange 2a are between the two
Interval, the second abutting part 1c and the intervals of second flange 1a between the two, contribute to the installation of screw；And use the first countersunk head
2a1 and the second countersunk head 1a1, then be that can reduce interval；First countersunk head 2a1 and the second countersunk head 1a1 top in hexangle type then
It is that further reduce is spaced；It is the manufacturing cost that can reduce positioning joint to reduce interval one, second, in order to increase positioning joint
Displacement.
The spacing block piece 1b is circular in one, and the front end of the first flange 2a inwardly settles stepped provided with one
Step 2a2, under installment state, said inner tube 1 and outer tube 2 are under the elastic acting force of buffer spring 4 to two lateral movements, the limit
Position block piece 1b is connected on the step 2a2 of step type, by the stepped step 2a2 limiting block part 1b can be made to be embedded in the
In one flange 2a, so as to not interfere with first flange 2a and bellows connection.
Spacing block piece 1b is fixedly mounted on the front end of inner tube 1 by multiple bolts, can facilitate spacing connect by bolt installation
The integral disassembly, assembly of head.
It is described above, only it is preferred embodiment of the present utility model, not technical scope of the present utility model is made
Go out any restrictions, thus it is every any trickle amendment made according to the technical essence of the utility model to above example, equivalent
Change and modification, in the range of still falling within the technical solution of the utility model.
Claims (8)
- A kind of 1. bellows positioning joint, it is characterised in that：Including inner tube (1), outer tube (2), linear bearing (3) and buffer spring (4), the linear bearing (3) is plugged in outer tube (2), and said inner tube (1) is plugged in linear bearing (3), the outer tube (2) First flange (2a), said inner tube can be provided with relative to inner tube (1) linear slide, the front end of outer tube (2) by linear bearing (3) (1) tail end is provided with second flange (1a), and the buffer spring (4) is socketed on outer tube (2), and the both ends of buffer spring (4) It is connected to respectively in outer tube (2) and inner tube (1), the front end of said inner tube (1) is provided with spacing block piece (1b), under installment state, institute Inner tube (1) and outer tube (2) is stated to abut to two lateral movements, the spacing block piece (1b) under the elastic acting force of buffer spring (4) In first flange (2a) front end.
- A kind of 2. bellows positioning joint according to claim 1, it is characterised in that：The back of the first flange (2a) Provided with six the first countersunk heads (2a1), the cylindrical circumferential direction that six first countersunk heads (2a1) prolong first flange (2a) is uniformly divided Cloth.
- A kind of 3. bellows positioning joint according to claim 2, it is characterised in that：First countersunk head (2a1) it is upper Portion is in hexangle type.
- A kind of 4. bellows positioning joint according to claim 1, it is characterised in that：The back of the second flange (1a) Provided with six the second countersunk heads (1a1), the cylindrical circumferential direction that six second countersunk heads (1a1) prolong first flange (2a) is uniformly divided Cloth.
- A kind of 5. bellows positioning joint according to claim 4, it is characterised in that：Second countersunk head (1a1) it is upper Portion is in hexangle type.
- A kind of 6. bellows positioning joint according to claim 1, it is characterised in that：The outer wall of the outer tube (2) is upper The first abutting part (2b) of a circular ring type is provided with the lower end of first flange (2a), is located at second on the outer wall of said inner tube (1) The lower end of flange (1a) is provided with the second abutting part (1c) of a circular ring type, and the both ends of the buffer spring (4) are connected to the respectively On one abutting part (2b) and the second abutting part (1c).
- A kind of 7. bellows positioning joint according to claim 1, it is characterised in that：The spacing block piece (1b) is in a circle Ring-type, the front end of the first flange (2a) are provided with a stepped step (2a2) inwardly settled, described under installment state Inner tube (1) and outer tube (2) are connected under the elastic acting force of buffer spring (4) to two lateral movements, the spacing block piece (1b) On stepped step (2a2), and the spacing block piece (1b) is embedded in first flange (2a).
- A kind of 8. bellows positioning joint according to claim 7, it is characterised in that：The spacing block piece (1b) is by more Individual bolt is fixedly mounted on the front end of inner tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720242431.8U CN206694706U (en) | 2017-03-13 | 2017-03-13 | A kind of bellows positioning joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720242431.8U CN206694706U (en) | 2017-03-13 | 2017-03-13 | A kind of bellows positioning joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206694706U true CN206694706U (en) | 2017-12-01 |
Family
ID=60443089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720242431.8U Active CN206694706U (en) | 2017-03-13 | 2017-03-13 | A kind of bellows positioning joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN206694706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027255A (en) * | 2018-06-11 | 2018-12-18 | 中广核研究院有限公司 | Steam generator and ring cavity sealing device |
| CN111888825A (en) * | 2020-08-20 | 2020-11-06 | 江苏新天鸿集团有限公司 | Particle impurity removing device |
-
2017
- 2017-03-13 CN CN201720242431.8U patent/CN206694706U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027255A (en) * | 2018-06-11 | 2018-12-18 | 中广核研究院有限公司 | Steam generator and ring cavity sealing device |
| CN111888825A (en) * | 2020-08-20 | 2020-11-06 | 江苏新天鸿集团有限公司 | Particle impurity removing device |
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