CN105909634A - Pipe abutting and expanding device - Google Patents
Pipe abutting and expanding device Download PDFInfo
- Publication number
- CN105909634A CN105909634A CN201610486168.7A CN201610486168A CN105909634A CN 105909634 A CN105909634 A CN 105909634A CN 201610486168 A CN201610486168 A CN 201610486168A CN 105909634 A CN105909634 A CN 105909634A
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- China
- Prior art keywords
- expansion mechanism
- swelling
- pipe
- expansion
- ring
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 112
- 238000006073 displacement reaction Methods 0.000 claims abstract description 26
- 230000009471 action Effects 0.000 claims abstract description 13
- 230000008961 swelling Effects 0.000 claims description 47
- 238000003032 molecular docking Methods 0.000 claims description 29
- 210000000481 breast Anatomy 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 abstract 2
- 210000002445 nipple Anatomy 0.000 description 8
- 230000007547 defect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
- F16B7/0413—Clamping or clipping connections for rods or tubes being coaxial for tubes using the innerside thereof
Abstract
The invention provides a pipe abutting and expanding device comprising an expansion mechanism, a shoring mechanism and a displacement mechanism, wherein two ends of the expansion mechanism are respectively connected with two pipes to abut the two pipes; the shoring mechanism is used for controlling the expansion or contraction of the expansion mechanism; and the displacement mechanism is used for driving the shoring mechanism to act. Two ends of the expansion mechanism are respectively arranged inside the two pipes, the displacement mechanism is rotated towards the inner side, and the shoring mechanism generates an outward expansion action, so that the expansion mechanism outwards expands and is fixed on the inner walls of the pipes to finish the connection of the two pipes; and the displacement mechanism is rotated outwards, and the shoring mechanism generates an inward contraction action, so that the expansion mechanism inwards contracts to be separated from the two pipes. By using the pipe abutting and expanding device, a plurality of short dissimilar steel pipe joints can be connected to form a string, so that mass industrial television flaw detection is conveniently carried out, and the nondestructive detection cost is remarkably reduced; and the device is simple in structure, low in manufacturing cost, convenient and rapid in operation, high in universality and practicability and capable of facilitating large-scale application in workshops.
Description
Technical field
The present invention relates to a kind of pipe docking swelling device for multiple dissimilar steel source nipples being connected bunchiness,
Belong to boiler fitting technical field.
Background technology
At present, the source nipple in boiler is designed as dissimilar steel docking structure, and pipe joint docking weld bond postwelding needs
Carry out nondestructive flaw detection examination.Small straight section pipe joint cannot carry out industrial electro in the case of not having attachment means in batches
Weld bond is docked depending on defect detecting test.
Manufacturing shop used radiographic inspection method, uses this kind of method of detection manufacturing cost high, and disappears
Consumption manpower and materials, are unfavorable for that workshop is produced in enormous quantities and manufacture.
Summary of the invention
The technical problem to be solved in the present invention is how multiple dissimilar steel source nipples to be connected bunchiness, facilitates it to enter
Row volume industrial TV defect detecting test, significantly reduces its nondestructive inspection cost simultaneously.
In order to solve above-mentioned technical problem, the technical scheme is that offer a kind of pipe docking swelling device,
It is characterized in that, including:
By being connected with two tubes respectively at two ends, make the expansion mechanism that two tubes docks；
For controlling expansion mechanism expansion or shrinking, thus shoring of realizing that expansion mechanism fixes with pipe or separate
Mechanism；
For driving the shift mechanism of top bracing mechanism action.
Preferably, inside described expansion mechanism, be respectively arranged at the two ends with a top bracing mechanism, expansion mechanism and top bracing mechanism it
Between be rotatably attached by bearing pin；Shift mechanism is located in expansion mechanism, and is connected with top bracing mechanism；Spring
It is located at shift mechanism top, and is close to expansion mechanism inwall.
Preferably, described expansion mechanism includes swelling bushing pipe, and swelling bushing pipe bosom is radially provided with upper and lower
Two boss being oppositely arranged, are provided with the blind hole for installing described spring in the boss on top, bottom convex
Platform is provided with the tapped through hole for installing described shift mechanism.
It is highly preferred that described swelling bushing pipe material selection spring steel.
It is highly preferred that described swelling bushing pipe two ends inwall be respectively welded with multiple be evenly arranged for shoring with described
The contiguous block that mechanism connects.
Further, described swelling bushing pipe two ends wall respectively has a plurality of notch being evenly arranged, and notch position
Put stagger corresponding to described contiguous block position.
Preferably, described top bracing mechanism includes side ring, and multiple strut one end are rotatably attached with side ring, described
The strut other end connects one to one with the contiguous block of described swelling bushing pipe inwall；Side ring center also is provided with connecting
Block, connecting rod is rotatably attached with the contiguous block at side ring center.
It is highly preferred that described side ring is provided with breach, counterbore, the radially even layout of breach, counterbore is located at scarce
Mouth both sides；Described strut is located in the breach of side ring, is connected by sunk screw, nut between strut with side ring,
Strut can carry out dead axle swing around countersunk head spiral shell in the breach of side ring.
It is highly preferred that described strut is connected by bearing pin, split pin respectively with the contiguous block of expansion mechanism inwall.
Preferably, described shift mechanism includes shifting screw, and center ring is rotatably disposed within displacement screw, end
Portion is closed by back-up ring；Displacement screw is located in the tapped through hole of described expansion mechanism, center ring and described swelling
The connecting rod of two top bracing mechanisms at mechanism two ends connects.
It is highly preferred that described displacement screw top is multidiameter, bottom is soket head cap screw structure；Described center
It is located on the multidiameter of displacement screw, can be around multidiameter System of Rotating about Fixed Axis；Described multidiameter is provided with for pacifying
Fill the groove of described back-up ring.
It is highly preferred that described center ring is by sunk screw, nut and two top bracing mechanisms at expansion mechanism two ends
Connecting rod connect.
Further, described center ring is provided with breach, counterbore, and the radially even layout of breach, counterbore is located at
Breach both sides；Described connecting rod can carry out dead axle swing around sunk screw in the breach of center ring.
It is highly preferred that under described expansion mechanism unexpanded mode, the angle between strut and side ring is obtuse angle, in
Angle between thimble and connecting rod is obtuse angle.
During use, expansion mechanism two ends are respectively arranged on inside two tubes, inside side rotation displacement screw, connecting rod
Rotating counterclockwise, drive side ring to move out, strut synchronous produces the action expanded outwardly so that expansion mechanism
Expand outwardly and swelling is fixed on tube wall, complete the connection of two tubes；
Otherwise, outside rotation displacement screw, connecting rod turns clockwise, and drives side ring to move inwards, strut synchronous
Produce the action shunk inwards so that expansion mechanism shrinks inwards and separates with two tubes.
The device that the present invention provides overcomes the deficiencies in the prior art, can be connected by multiple dissimilar steel source nipples
Bunchiness, facilitates it to carry out volume industrial TV defect detecting test, significantly reduces nondestructive inspection cost.And device
Simple in construction, low cost of manufacture, simple operation, for various sizes of internal diameter of pipe joint, all can use this dress
Put and carry out clamping connection, there is the highest versatility, practicality, it is simple to workshop large scale investment uses.
Accompanying drawing explanation
The pipe docking swelling device front view that Fig. 1 a provides for the present embodiment；
The pipe docking swelling device left view that Fig. 1 b provides for the present embodiment；
Fig. 2 a is expansion mechanism front view；
Fig. 2 b is expansion mechanism left view；
Fig. 3 a is top bracing mechanism front view；
Fig. 3 b top bracing mechanism left view；
Fig. 4 a is shift mechanism front view；
Fig. 4 b is shift mechanism left view；
The pipe docking swelling device that Fig. 5 a provides for the present embodiment uses schematic diagram；
Fig. 5 b is that expansion mechanism uses process external diameter change schematic diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate
The present invention rather than restriction the scope of the present invention.In addition, it is to be understood that read the present invention lecture content it
After, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within this equally
Application appended claims limited range.
Fig. 1 a and Fig. 1 b is respectively front view and the left view of the pipe docking swelling device that the present embodiment provides,
Described pipe docking swelling device is by expansion mechanism 1, top bracing mechanism 2, bearing pin 3, split pin 4, shifting machine
Structure 5, spring 6 etc. form.
It is internal that top bracing mechanism 2 is arranged on expansion mechanism 1, uses bearing pin between expansion mechanism 1 and top bracing mechanism 2
3, split pin 4 is attached.Shift mechanism 5, spring 6 are installed in expansion mechanism 1, shift mechanism 5
And using sunk screw 2-2, nut 2-3 to be attached between top bracing mechanism 2, shift mechanism 5 top is installed
Spring 6.
In conjunction with Fig. 2 a and Fig. 2 b, expansion mechanism 1 is by contiguous block 1-1, notch 1-2, boss 1-3, blind hole
1-4, tapped through hole 1-5, swelling bushing pipe 1-6 etc. form.Swelling bushing pipe 1-6 is tubulose, material selection spring
Steel.Swelling bushing pipe 1-6 bosom is radially provided with upper and lower two boss 1-3 being oppositely arranged, top
Boss 1-3 is provided with blind hole 1-4, the boss 1-3 of bottom is provided with tapped through hole 1-5.
Swelling bushing pipe 1-6 two ends inwall is respectively welded with 4 contiguous block 1-1, the radially even cloth of contiguous block 1-1
Putting, between contiguous block 1-1, angle is evenly distributed.4 notch 1-2 are respectively had on the wall of swelling bushing pipe 1-6 two ends,
The radially even layout of notch 1-2, between notch 1-2, angle is evenly distributed, and notch 1-2 position be connected
Block 1-1 staggers position accordingly.
In conjunction with Fig. 3 a and Fig. 3 b, top bracing mechanism 2 is by strut 2-1, sunk screw 2-2, nut 2-3, side ring
2-4, connecting rod 2-5 etc. form.Side ring 2-4 is provided with breach c, counterbore d, in the present embodiment, side ring 2-4
Being provided with 4 breach, the radially even layout of breach, between breach, angle is evenly distributed, and counterbore d is located at
Breach c both sides.
Strut 2-1 is provided with 4, is respectively arranged in 4 breach of side ring 2-4, strut 2-1 and side ring 2-4
Between be attached by sunk screw 2-2, nut 2-3, strut 2-1 can be around in the breach of side ring 2-4
Sunk screw 2-2 carries out dead axle swing.Side ring 2-4 center position is also welded to connect block 1-1, connecting rod 2-5
Being attached with this contiguous block 1-1 by bearing pin 3, split pin 4, connecting rod 2-5 can in this contiguous block 1-1
To carry out dead axle swing around bearing pin 3.
4 contiguous block 1-1 of 4 strut 2-1 and expansion mechanism 1 inwall are respectively by bearing pin 3, split pin 4
Connect.Angle between each strut 2-1 and side ring 2-4 is obtuse angle.
In conjunction with Fig. 4 a and Fig. 4 b, shift mechanism 5 is by groups such as back-up ring 5-1, center ring 5-2, displacement screw 5-3
Become.Screw 5-3 top is set to multidiameter, bottom is set to soket head cap screw structure in displacement.Displacement screw 5-3's
Multidiameter is provided with groove, is used for installing back-up ring 5-1.Center ring 5-2 center is provided with circular hole, center ring
5-2 is arranged on the multidiameter in displacement screw 5-3 by this circular hole, and end uses back-up ring 5-1 to close.
Center ring 5-2 can be around the multidiameter System of Rotating about Fixed Axis in displacement screw 5-3.
Center ring 5-2 is provided with breach a and counterbore b, and in the present embodiment, center ring 5-2 is provided with 4 and lacks
Mouthful, between breach, angle is evenly distributed, and counterbore b is located at breach a both sides.
Displacement screw 5-3 in shift mechanism 5 is arranged in the tapped through hole 1-5 in swelling bushing pipe 1-6, moves
The center ring 5-2 of position mechanism 5 two tops by sunk screw 2-2, nut 2-3 with expansion mechanism 1 two ends
The connecting rod 2-5 of support mechanism 2 connects.Connecting rod 2-5 can be around sunk screw 2-2 in the breach of center ring 5-2
Carry out dead axle swing.Angle between center ring 5-2 and connecting rod 2-5 is obtuse angle.
In conjunction with Fig. 5 a and Fig. 5 b, the specifically used step of the pipe docking swelling device that the present embodiment provides is as follows:
One, measure dissimilar steel docking source nipple port inner diameter size, select to be suitable for the swelling bushing pipe 1-6 of size.
Expansion mechanism 1, top bracing mechanism 2, shift mechanism 5 are attached, complete the group of pipe docking swelling device
Dress operation.
Two, it is respectively mounted dissimilar steel docking source nipple A at pipe docking swelling device two ends, in using
The displacement screw 5-3 of die nut rotation displacement mechanism 5 inwards, makes the connecting rod 2-5 in top bracing mechanism 2 and shifting
Angle between the center ring 5-2 of position mechanism 5 becomes big, and connecting rod 2-5 will produce spinning movement counterclockwise,
In connecting rod 2-5 rotary course under produced deviation L1 effect, the side ring 2-4 in top bracing mechanism 2 can produce
The action moved out so that the strut 2-1 in top bracing mechanism 2 synchronizes to produce the action expanded outwardly so that
Swelling bushing pipe 1-6 two ends cylindrical in expansion mechanism 1 is become Φ 2 from Φ 1, and its numerical relation is: Φ 2 ＞ Φ 1,
The now swelling bushing pipe 1-6 swelling in expansion mechanism 1 is fixed on pipe part inwall, i.e. completes two dissimilar steel
The connection of docking source nipple.Repeat said method, many dissimilar steel source nipple docking operations can be completed,
Facilitate follow-up to the docking circumferential weld volume industrial TV defect detecting test operation of part pipe joint.
Three, by using inner hexagon spanner as outside rotation displacement screw 5-3, the connecting rod 2-5 in top bracing mechanism 2
The action that turns clockwise will be produced, so that the rotating deviation L1 in connecting rod 2-5 resets, top bracing mechanism
Side ring 2-4 in 2 can produce the action moved inwards so that the strut 2-1 in top bracing mechanism 2 synchronizes to produce
The action shunk inwards so that the swelling bushing pipe 1-6 two ends cylindrical in expansion mechanism 1 is returned back to Φ 1 by Φ 2,
I.e. complete pipe docking swelling device to separate with the handling of pipe part.
Claims (10)
1. a pipe docking swelling device, it is characterised in that including:
By being connected with two tubes respectively at two ends, make the expansion mechanism (1) that two tubes docks；
Expand for controlling expansion mechanism (1) or shrink, thus realize expansion mechanism (1) and pipe fix or
The top bracing mechanism (2) separated；
For driving the shift mechanism (5) of top bracing mechanism (2) action.
2. a kind of pipe docking swelling device as claimed in claim 1, it is characterised in that: described expansion mechanism (1)
Inside is respectively arranged at the two ends with a top bracing mechanism (2), passes through bearing pin between expansion mechanism (1) and top bracing mechanism (2)
(3) it is rotatably attached；In shift mechanism (5) is located at expansion mechanism (1), and with top bracing mechanism (2)
Connect；Shift mechanism (5) top is located at by spring (6), and is close to expansion mechanism (1) inwall.
3. a kind of pipe docking swelling device as claimed in claim 2, it is characterised in that: described expansion mechanism (1)
Including swelling bushing pipe (1-6), swelling bushing pipe (1-6) bosom is radially provided with upper and lower two and relatively sets
The boss (1-3) put, is provided with the blind hole (1-4) for installing described spring (6) in the boss (1-3) on top,
The boss (1-3) of bottom is provided with the tapped through hole (1-5) for installing described shift mechanism (5).
4. a kind of pipe docking swelling device as claimed in claim 3, it is characterised in that: described swelling bushing pipe
(1-6) two ends inwall be respectively welded with multiple be evenly arranged for the connection being connected with described top bracing mechanism (2)
Block (1-1).
5. a kind of pipe docking swelling device as claimed in claim 4, it is characterised in that: described swelling bushing pipe
(1-6) a plurality of notch (1-2) being evenly arranged respectively is had on the wall of two ends, and notch (1-2) position and institute
State contiguous block (1-1) position to stagger accordingly.
6. a kind of pipe docking swelling device as claimed in claim 4, it is characterised in that: described top bracing mechanism (2)
Including side ring (2-4), multiple struts (2-1) one end is rotatably attached with side ring (2-4), described strut
(2-1) other end connects one to one with the contiguous block (1-1) of described swelling bushing pipe (1-6) inwall；Side ring
(2-4) center also is provided with the contiguous block (1-1) at contiguous block (1-1), connecting rod (2-5) and side ring (2-4) center
It is rotatably attached.
7. a kind of pipe docking swelling device as claimed in claim 6, it is characterised in that: described shift mechanism (5)
Including displacement screw (5-3), center ring (5-2) is rotatably disposed within displacement screw (5-3), and end leads to
Cross back-up ring (5-1) to close；The tapped through hole (1-5) of described expansion mechanism (1) is located in displacement screw (5-3)
In, the connecting rod (2-5) of two top bracing mechanisms (2) at center ring (5-2) and described expansion mechanism (1) two ends
Connect.
8. a kind of pipe docking swelling device as claimed in claim 7, it is characterised in that: described displacement screw
(5-3) top be multidiameter, bottom be soket head cap screw structure；Described center ring (5-2) is located at displacement spiral shell
On the multidiameter of nail (5-3)；Described multidiameter is provided with the groove for installing described back-up ring (5-1).
9. a kind of pipe docking swelling device as claimed in claim 7, it is characterised in that: described expansion mechanism (1)
Under unexpanded mode, the angle between strut (2-1) and side ring (2-4) is obtuse angle, center ring (5-2) with
Angle between connecting rod (2-5) is obtuse angle.
10. a kind of pipe docking swelling device as described in any one of claim 7～9, it is characterised in that: during use,
Expansion mechanism (1) two ends are respectively arranged on inside two tubes, inside side rotation displacement screw (5-3), connecting rod
(2-5) rotating counterclockwise, drive side ring (2-4) to move out, strut (2-1) synchronizes generation and expands outwardly
Action so that expansion mechanism (1) expands outwardly and swelling is fixed on tube wall, completes two tubes
Connect；
Otherwise, outside rotation displacement screw (5-3), connecting rod (2-5) turns clockwise, and drives side ring (2-4)
Moving inwards, strut (2-1) synchronizes to produce the action shunk inwards so that expansion mechanism (1) shrinks inwards
Separate with two tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610486168.7A CN105909634B (en) | 2016-06-28 | 2016-06-28 | A kind of pipe docks swelling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610486168.7A CN105909634B (en) | 2016-06-28 | 2016-06-28 | A kind of pipe docks swelling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105909634A true CN105909634A (en) | 2016-08-31 |
| CN105909634B CN105909634B (en) | 2018-06-26 |
Family
ID=56758786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610486168.7A Active CN105909634B (en) | 2016-06-28 | 2016-06-28 | A kind of pipe docks swelling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105909634B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760924A (en) * | 2017-01-20 | 2017-05-31 | 蔚孜电子商务（上海）有限公司 | A kind of telescopic column and the tent with the telescopic column |
| CN109555905A (en) * | 2018-12-31 | 2019-04-02 | 宋夏子 | A kind of sea-bottom oil-gas pipeline docking facilities |
| CN113441613A (en) * | 2021-07-12 | 2021-09-28 | 内蒙古工业大学 | Clamping tool for heat setting of vascular stent |
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|---|---|---|---|---|
| DE1779650U (en) * | 1958-08-07 | 1958-12-18 | Frieseke & Hoepfner Gmbh | HYDRAULICALLY ACTUATED CENTERING DEVICE FOR PIPE WELDING, TRAINED IN THE TYPE OF A SLIDE. |
| CN101463924A (en) * | 2007-12-20 | 2009-06-24 | 上海市基础工程公司 | Heavy caliber pipe-jacking butt joint technique |
| CN201731211U (en) * | 2010-07-28 | 2011-02-02 | 华创天元实业发展有限责任公司 | Internal supporting tool used for welding composited pipe |
| CN201871885U (en) * | 2010-11-25 | 2011-06-22 | 北京特种机械研究所 | Adjustable tensioning and supporting device |
| AU2009202854B2 (en) * | 2009-07-02 | 2013-10-10 | Vertical Leisure Ltd | Coupling Device |
| CN205895796U (en) * | 2016-06-28 | 2017-01-18 | 上海锅炉厂有限公司 | Pipe butt joint is expanded and is tightly installed |
-
2016
- 2016-06-28 CN CN201610486168.7A patent/CN105909634B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1779650U (en) * | 1958-08-07 | 1958-12-18 | Frieseke & Hoepfner Gmbh | HYDRAULICALLY ACTUATED CENTERING DEVICE FOR PIPE WELDING, TRAINED IN THE TYPE OF A SLIDE. |
| CN101463924A (en) * | 2007-12-20 | 2009-06-24 | 上海市基础工程公司 | Heavy caliber pipe-jacking butt joint technique |
| AU2009202854B2 (en) * | 2009-07-02 | 2013-10-10 | Vertical Leisure Ltd | Coupling Device |
| CN201731211U (en) * | 2010-07-28 | 2011-02-02 | 华创天元实业发展有限责任公司 | Internal supporting tool used for welding composited pipe |
| CN201871885U (en) * | 2010-11-25 | 2011-06-22 | 北京特种机械研究所 | Adjustable tensioning and supporting device |
| CN205895796U (en) * | 2016-06-28 | 2017-01-18 | 上海锅炉厂有限公司 | Pipe butt joint is expanded and is tightly installed |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760924A (en) * | 2017-01-20 | 2017-05-31 | 蔚孜电子商务（上海）有限公司 | A kind of telescopic column and the tent with the telescopic column |
| CN109555905A (en) * | 2018-12-31 | 2019-04-02 | 宋夏子 | A kind of sea-bottom oil-gas pipeline docking facilities |
| CN113441613A (en) * | 2021-07-12 | 2021-09-28 | 内蒙古工业大学 | Clamping tool for heat setting of vascular stent |
| CN113441613B (en) * | 2021-07-12 | 2023-04-28 | 内蒙古工业大学 | Frock clamp for heat setting of vascular stent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105909634B (en) | 2018-06-26 |
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