CN108411898A - A kind of jointing device and prestressing force prefabricated component - Google Patents
A kind of jointing device and prestressing force prefabricated component Download PDFInfo
- Publication number
- CN108411898A CN108411898A CN201810382966.4A CN201810382966A CN108411898A CN 108411898 A CN108411898 A CN 108411898A CN 201810382966 A CN201810382966 A CN 201810382966A CN 108411898 A CN108411898 A CN 108411898A
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- Prior art keywords
- inserted link
- prefabricated component
- nut
- chuck
- prestressing force
- 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.)
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- 210000003205 muscle Anatomy 0.000 claims abstract description 29
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention provides a kind of simple in structure, safe and reliable jointing device includes upper section nut, lower section nut, it is upper section nut and it is lower section nut bottom be equipped with for rigidity expand head clamping wear muscle hole, upper section nut is connected with inserted link far from the threaded one end for wearing muscle hole, inserted link is equipped with connection-peg, lower section nut sets gradually elastic element far from wearing muscle hole, detain cylinder and stop nut, wherein, the inner cavity of the lower section nut is equipped with limiting stand, limiting stand make-up cylinder is limited to the displacement for wearing muscle hole direction, so that connection-peg struts the minimum portion that the maximum portion of chuck and connection-peg passes through chuck.It avoids the inserted link caused by material problem and connects unstable problem caused by can not strutting chuck.
Description
Technical field
The present invention relates to building connector technical field more particularly to a kind of jointing device and include the jointing
The prestressing force prefabricated component of device.
Background technology
Be presently used for the prefabricated pile of building foundation anti-pulling engineering, carried out in the form of most of welding using end plate stake and
The connection of stake.Since this connection type belongs to electric welding, because personnel's weld horizontal is irregular, it is understood that there may be certain peace
Full hidden danger, influences construction quality.For this purpose, the connection type of stake is improved by many enterprises to end-plate-free direction.
For example, disclosed in the document that the applicant retrieves it is a kind of buckle cylinder, including cyclic annular collet, the collet upper edge week
To being arranged at intervals with multiple card structures with buckle function.On this basis, a kind of jointing device is also disclosed, wraps
Bottom cylinder and top cylinder are included, the inner cavity setting of the bottom cylinder has elastic component, and the elastic element is resisted against the intracavity bottom of bottom cylinder, institute
It states the upper surface of elastic element and is provided with the button cylinder, the collet of the button cylinder is set to above elastic element, the button cylinder
Hollow lock cylinder is provided with above multiple card mechanisms, the lock cylinder is fixed on the inner cavity of bottom cylinder, and the button cylinder is resisted against lock cylinder
Lower end, the inner cavity of the top cylinder is fixed with bolt, is snapped in and is buckled after lock cylinder by bolt between the top cylinder and bottom cylinder
The two is set to link together on the inner cavity that multiple cards of cylinder surround.
Gasket and collet are integrated formula and buckle cylinder by the patent, are operated more convenient.But button cylinder by collet and
Card is connected and composed by elastic piece, and card is different from the requirement of the material of collet and elastic piece, because card and inserted link need
Withdrawal resistance is carried, so setting, clocking requirement its material hardness is very high, and the requirement of the not no high rigidity of collet and elastic piece,
In, elastic piece but has the design requirement of toughness, and card usually also needs to do special quenching treatment, such integral type
It is different to detain the physical attributes such as card, the hardness of elastic piece and collet, toughness in cylinder, the entire difficulty of processing and cost for detaining cylinder
It is very high, it is common practice to entire button cylinder unification be handled according to the design requirement of card, necessarily lead to elastic piece in this way
Hardness improve, toughness is insufficient, causes inserted link that can not strut chuck.
In this way, jointing device is in actual use, since elastic piece solidness and hardness are very high, inserted link can not strut
Card and formed cooperation, connection is unstable, this problem is insurmountable by existing spring, if spring setting is too
Firmly, then chuck can not move down, and chuck does not move down, and chuck can not be opened in radial direction by lock cylinder limitation, just can not be complete
At connection；If spring setting is softer, inserted link heads on button cylinder and moves down, and since elastic piece rigidity is very big, inserted link often occurs
It has been plugged into extreme position, but card does not open but, card is not formed with inserted link and is connect, root between such prefabricated component
Thus this influences pile body and connects reliability, resistance to plucking tensile capacity is caused to decline without forming being fastenedly connected for stabilization.
Invention content
The present invention is based on above-mentioned technical problems, provide a kind of jointing device simple in structure, safe and reliable.
To achieve the goals above, the present invention provides a kind of jointing device, including upper section nut, lower section nut, on
The bottom of section nut and lower section nut is equipped with for wearing muscle hole with what rigidity expanded head clamping, and upper section nut is separate to wear muscle hole
Threaded one end is connected with inserted link, and inserted link is equipped with connection-peg, and lower section nut sets gradually elastic element, button cylinder and limit far from muscle hole is worn
Position nut, wherein the inner cavity of the lower section nut is equipped with limiting stand, and limiting stand make-up cylinder is limited to the displacement for wearing muscle hole direction
Position so that connection-peg struts the minimum portion that the maximum portion of chuck and connection-peg passes through chuck.
Further, connection-peg is equipped with guide surface, and guide surface is at least partly cambered surface.
Further, on inserted link further include the portion of being loaded, for being engaged by clamping with clamping tool, the portion of being loaded is logical in the portion of being loaded
It crosses card access surface to be engaged by clamping with clamping tool, the portion that is loaded is non-circular perpendicular to the section of inserted link axis.
Wherein, chuck is at least two panels, there are gap between the circumferentially uniform interval setting of multi-disc chuck or chuck,
And it circumferential is uniformly arranged.
The invention also discloses a kind of prestressing force prefabricated component, several longitudinal ribs in prestressing force prefabricated component and horizontal bar structure
At prefabricated component rigid backbone, the prefabricated component both ends are correspondingly arranged lower section nut and upper section spiral shell in jointing device respectively
Mother, specifically, the longitudinal rib both ends of the prestressing force prefabricated component are made as rigidity and expand head respectively, and the upper section nut is under
Section nut is clamped by wearing the head that expands of the muscle hole respectively with longitudinal rib both ends in prestressing force prefabricated component.In this way, upper prestressing force is prefabricated
Part, lower prestress prefabricated component and for connect the upper prestressing force prefabricated component under connect prestressing force prefabricated component jointing fill
It sets, multiple prefabricated components can be assemblied into an entirety.
Multiple jointing dresses are equably correspondingly arranged between the upper prestressing force prefabricated component, lower prestress prefabricated component
It sets.
Compared with the background technology, the present invention, the present invention is limited by limiting stand by cylinder is detained, so that inserted link struts chuck,
It is engaged by clamping to which connection-peg is formed with chuck, avoids caused by the inserted link caused by material problem can not strut chuck and connect
Unstable problem.
It is also possible to several effects are obtained, such as：
(1) guide surface of inserted link is cambered surface, and the contact surface with button cylinder chuck is smooth transition surface, when guiding contact surface without
Dead angle, will not be stuck, ensures bolt grafting in place, connects reliability to improve pile body, resistance to plucking tensile capacity is avoided to decline simultaneously
Also avoid causes inserted link backfin chuck or inserted link to hit chuck due to unsmooth causes chuck to deform and connects not close unstable
Fixed problem.
(2) setting in the portion of the invention that is loaded changes the structure of original fluting assembly, becomes circumferential clamping assembly, avoids
The problem of fluting in the destruction and assembly of rigidity part stress to beating open-minded installation opening.
Figure of description
Fig. 1 is jointing apparatus structure exploded perspective view of the present invention；
Fig. 2 is the structural schematic diagram of inserted link of the present invention；
Fig. 3 is another structural schematic diagram of inserted link of the present invention；
Fig. 4, which is that the present invention is lower, saves nut structure diagram；
Fig. 5 is the nature structural schematic diagram of jointing device of the present invention；
Fig. 6 is the inserting state structural schematic diagram of jointing device of the present invention；
Fig. 7 is the inserting state structural schematic diagram of jointing device of the present invention；
Fig. 8 is prestressing force preform structure schematic diagram of the present invention；
Wherein：Upper section nut 1, lower section nut 2, rigidity expand first 3, inserted link 4, connection-peg 5, wear muscle hole 6, elastic element 7,
Detain cylinder 8, stop nut 9, limiting stand 10, chuck 11, guide surface 12, the inserted link body of rod 13, screw thread 14, the portion 15 that is loaded, connection-peg
Its minimum portion 17, the first prestressing force prefabricated component 20, the second prestressing force prefabricated component 21, longitudinal rib 22 after maximum portion 16, chuck are opened.
Specific implementation mode
The present invention is illustrated below according to attached drawing illustrated embodiment.This time disclosed embodiment can consider in all sides
Face is to illustrate, without limitation.The scope of the present invention is not illustrated to be limited by following implementation, only by claims
Shown in range, and include all deformations having with right in the same meaning and right.
Illustrate that the present invention will be further described in detail with reference to specific embodiment.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of jointing device, including upper section nut 1, lower section nut 2, upper section nut
1 and the bottom of lower section nut 2 be equipped with for wearing muscle hole 6 with what rigidity expanded first 3 clamping, upper section nut 1 is separate to wear muscle hole 6
Threaded one end is connected with inserted link 4, and inserted link 4 is equipped with connection-peg 5, and lower section nut 2 sets gradually elastic element 7, button far from muscle hole 6 is worn
Cylinder 8 and stop nut 9, button cylinder 8 are equipped with chuck 11, wherein the inner cavity of the lower section nut 2 is equipped with limiting stand 10, limiting stand 10
Make-up cylinder 8 is limited to the displacement for wearing 6 direction of muscle hole so that connection-peg 5 strut button cylinder 8 on chuck 11 and connection-peg most
Its minimum portion 17 after big portion 16 is opened by chuck.
As shown in Fig. 2, the structural schematic diagram of inserted link of the present invention, wherein inserted link 4 includes connection-peg 5, and connection-peg 5 is provided with
Guide surface 12, the guide surface 12 at least part is cambered surface, and guide surface 12 smoothly struts chuck 11 for making inserted link 4, leads
It is formed by the different circular arc of multiple radians to face 12 and guiding role can be divided into multistage, to adapt to different chuck 11, be not necessarily to
Existing chuck 11 is replaced, the suitability of inserted link 4 is improved, economic value is very big；And after guide surface 12 is classified, between every section of circular arc
The buffering area that a section power is formed in 4 insertion process of inserted link is conducive to inserted link 4 and more accurately completes docking in this way.Inserted link bar
Body 13 is to 5 gradually smaller bullet of connection-peg, while stop nut 9 is corresponding with the inserted link body of rod 13 is arranged to reverse taper,
Be conducive to the stability of inserted link 4 and 9 grafting of stop nut and the compact and compactness of entire jointing device cooperation, Ke Yili
Solution is the inserted link body of rod 13 or cylinder or other regular polygon bodies, and the one end of the inserted link body of rod 13 far from connection-peg 5 is set
There is screw thread 14.
Further include the portion of being loaded 15 on inserted link 4 in the present embodiment, the portion 15 that is loaded is clamped by card access surface and clamping tool
Cooperation, the card access surface includes at least one not rounded face, and the specific location of card access surface can be arranged as required in inserted link 4
On multiple positions, such as：
When installation tool be it is polygonal telescopic when, the portion 15 that is loaded can be raised in the inserted link body of rod 13, be loaded portion 15 perpendicular to
The section of 4 axis of inserted link is polygon, it will be understood by those skilled in the art that the portion 15 that is loaded is perpendicular to 4 axis of inserted link
Section be non-circular other shapes, can block and inserted link 4 is driven to move synchronously.
As shown in figure 3, when the portion of being loaded 15 is set on the inserted link body of rod 13, be loaded the cutting perpendicular to 4 axis of inserted link of portion 15
At least two sections of the contour line in face is straightway, it is to be appreciated that the portion 15 that is loaded is the lower concave plane for being set to the inserted link body of rod 13
Or cutting facade, lower concave plane or cutting facade are two, symmetrical to be arranged in 13 both sides of the inserted link body of rod, it is also conceivable that
Portion be loaded as the slot cut on the inserted link body of rod 13.
As shown in figure 4, the inner cavity upper and lower part of lower section nut 2 is respectively equipped with screw thread 14 and wears muscle hole 6, the company of being respectively used to
It connects stop nut 9 and rigidity expands first 3, limiting stand 10 is set in the corresponding position in inner cavity of lower section nut 2, limiting stand 10 is remote
It is that limiting stand 10 offsets with button cylinder 8 and meets its minimum portion 17 after chuck is opened from the extreme position for wearing 6 direction of muscle hole to be enough to lead to
The maximum portion 16 of connection-peg is crossed, limiting stand 10 is to meet inserted link 4 to be inserted into the limit close to the extreme position in 6 direction of muscle hole is worn
When position, button cylinder 8 offsets with limiting stand 10 and its minimum portion 17 is enough the maximum portion 16 by connection-peg after chuck opening,
The specific location of limiting stand 10 is arranged between two extreme positions (including extreme position), that is to say, that limiting stand 10
As long as being arranged far from the extreme position in screw thread direction and close to wearing between the extreme position in muscle hole direction, so that it may to meet this hair
Bright design requirement, because the structure of 5 concentric reducer of connection-peg determines the maximum portion 16 of connection-peg Yi Dan opened by chuck
Its minimum portion 17, under the action of elastic element 7,11 natural shrinking of chuck simultaneously forms stable clamping engagement with connection-peg 5.
As shown in figure 5, under natural conditions, a kind of jointing device, upper section nut 1, lower section nut 2 are by wearing muscle hole 6
It is separately connected rigidity and expands first 3, upper section nut 1 is threaded with inserted link 4, and limit is set gradually from top to bottom in lower section nut 2
Nut 9, button cylinder 8 and elastic element 7, wherein button cylinder 8 includes collet and the circumferentially spaced multiple chuck 11 of collet upper edge,
Elastic element 7 is compression spring, or other spring elements with reset function such as rubber, clamp spring, shrapnel, lower section nut 2
Upper inner diameter is big, and lower inner diameter is small, forms limiting stand 10 in the inner cavity of lower section nut, limiting stand 10 can also be radial protrusion
To the protrusion of the inner cavity of lower section nut, descend to save the intracavity diameter of nut preferably by change in order to easy to process, and then shape
At limiting stand 10, elastic element 7 holds the collet of button cylinder 8 so that the conical surface of chuck 11 is bonded with the conical surface of stop nut 9, card
The cone match of platform 11 and stop nut 9 is the prior art, and effect repeats no more.
As shown in fig. 6, in grafting, connection-peg 5 compresses chuck 11 (or button cylinder 8) so that detains cylinder 8 to the side for wearing muscle hole 6
To movement, when chuck 11 is enough to open, (i.e. chuck 11 deviates from stop nut 9, the conical surface of the conical surface and stop nut 9 of chuck 11
Its minimum portion 17 is separated to after chuck is opened when the maximum portion 16 of connection-peg being sufficient to make to pass through), button cylinder 8 and 10 phase of limiting stand
It supports, 10 make-up cylinder 8 of limiting stand is limited, and limitation button cylinder continues to move to the direction for wearing muscle hole, in this way, inserted link 4 continues into
The opening of chuck 11 can be forciblyd cause, and then completes to be engaged by clamping, the reliability of connection is enhanced, avoids missing phenomenon.
As shown in fig. 7, during grafting, its minimum portion 17 after the maximum portion 16 of connection-peg is opened by chuck, button cylinder 8 exists
It is moved to 9 direction of stop nut under the action of elastic element 7, and the conical surface of chuck 11 and the conical surface of stop nut 9 paste again
It closes, such inserted link 4, chuck 11 and stop nut 9 form limit cooperation, and inserted link 4 is prevented to exit.
Embodiment 2
As shown in figure 8, the invention also discloses a kind of prestressing force prefabricated component, including the first prestressing force prefabricated component 20, second
Prestressing force prefabricated component 21 and the connection that prestressing force prefabricated component 21 is connect for connecting the first prestressing force prefabricated component 20 and second
The end face of piecing devices, the first prestressing force prefabricated component 20 and the second prestressing force prefabricated component 21 is equal in magnitude, and interface is opposite, the company
Connect the jointing device that piecing devices are embodiment 1, wherein several longitudinal ribs 22 in prestressing force prefabricated component and horizontal bar
Constitute prefabricated component rigid backbone, the general uniformly rounded or rectangular equal regular figures of longitudinal rib 22 are arranged in prestressing force prefabricated component
Interior, 22 both ends of longitudinal rib of the prestressing force prefabricated component are made as rigidity and expand first 3 respectively, and are separately connected by wearing muscle hole 6
Upper section nut 1 and lower section nut 2, upper section nut 1 connect inserted link 4, lower 2 elastic elements 7 of section nut, button cylinder 8 and limit spiral shell
Mother 9, it is corresponding that connection is can be completed into the lower section nut of inserted link insertion when two prestressing force prefabricated components connect.Specifically,
One prestressing force prefabricated component 20 is docked with the second prestressing force prefabricated component 21, and the upper end of longitudinal rib 22 connects in the first prestressing force prefabricated component 20
Lower section nut 2 is connect, lower end, which connects, saves nut 1, and the upper end connection of longitudinal rib 22 is lower in the second prestressing force prefabricated component 21 saves nut
2, lower end connects and saves nut 1, extends successively, when multiple prefabricated components are connected with each other, is sequentially arranged section or lower section nut, then
Corresponding setting inserted link 4 and chuck 11.
Be arranged jointing device prefabricated component can facilitate it is stable and firm link together, change the weldering of present end plate
The mode connect in succession has huge economy and social value.
It is to be appreciated that term " upper section ", " lower section ", " limit ", " upper end ", " lower end ", "top", "bottom", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and letter
Change description, rather than indicate or imply to must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For limitation of the present invention.
It the above is only the preferred embodiment of the present invention, protection scope of the present invention is with claim limited range
Standard, several improvements and modifications that those skilled in the art make without departing from the spirit and scope of the present invention also should be regarded as this
The protection domain of invention.
Claims (10)
1. the bottom of a kind of jointing device, including upper section nut, lower section nut, upper section nut and lower section nut is all provided with useful
In wearing muscle hole with what rigidity expanded head clamping, upper section nut is connected with inserted link far from the threaded one end for wearing muscle hole, and inserted link, which is equipped with, to be inserted
Connector, lower save in nut set gradually elastic element, button cylinder and stop nut far from the direction for wearing muscle hole, and button cylinder includes chuck,
It is characterized in that, the inner cavity of the lower section nut is additionally provided with limiting stand, limiting stand make-up cylinder is carried out to the displacement for wearing muscle hole direction
Limit so that connection-peg smoothly strut chuck and connection-peg maximum portion opened by chuck after minimum portion.
2. jointing device according to claim 1, which is characterized in that limiting stand is far from the limit position for wearing muscle hole direction
Setting is, button cylinder offsets with limiting stand and its minimum portion is enough the maximum portion by connection-peg after chuck opening.
3. jointing device according to claim 1 or 2, which is characterized in that limiting stand is close to the pole for wearing muscle hole direction
Extreme position is, when inserted link is inserted into extreme position, button cylinder offsets with limiting stand and its minimum portion is enough by inserting after chuck opening
The maximum portion of connector.
4. jointing device according to claim 1, which is characterized in that connection-peg is equipped with guide surface, and guide surface is at least
It is cambered surface to have part.
5. jointing device according to claim 1, which is characterized in that the inserted link body of rod is gradually smaller to connection-peg
Bullet.
6. jointing device according to claim 1, which is characterized in that elastic element is compression spring.
7. jointing device according to claim 1, which is characterized in that further include the portion of being loaded on inserted link, the portion of being loaded uses
It is engaged by clamping in clamping tool.
8. jointing device according to claim 7, which is characterized in that portion's the cutting perpendicular to inserted link axis that be loaded
Face is non-circular.
9. there is the prestressing force prefabricated component of claim 1-8 any one of them jointing devices, in prestressing force prefabricated component
Several longitudinal ribs and horizontal bar constitute prefabricated component rigid backbone, which is characterized in that the longitudinal rib both ends of prestressing force prefabricated component point
It is not made as rigidity and expands head, the upper section nut and lower section nut of jointing device are prefabricated with prestressing force respectively by wearing muscle hole
Longitudinal rib both ends expands head clamping in part.
10. prestressing force prefabricated component according to claim 9, which is characterized in that prestressing force prefabricated component includes that upper prestressing force is pre-
Product, lower prestress prefabricated component are equably correspondingly arranged on multiple connections between upper prestressing force prefabricated component, lower prestress prefabricated component
Piecing devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810382966.4A CN108411898A (en) | 2018-04-26 | 2018-04-26 | A kind of jointing device and prestressing force prefabricated component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810382966.4A CN108411898A (en) | 2018-04-26 | 2018-04-26 | A kind of jointing device and prestressing force prefabricated component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108411898A true CN108411898A (en) | 2018-08-17 |
Family
ID=63136689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810382966.4A Withdrawn CN108411898A (en) | 2018-04-26 | 2018-04-26 | A kind of jointing device and prestressing force prefabricated component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108411898A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220163666A (en) * | 2021-06-03 | 2022-12-12 | 케이에이치건설 주식회사 | Pipe connecting structure and phc pile structure using the same |
-
2018
- 2018-04-26 CN CN201810382966.4A patent/CN108411898A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220163666A (en) * | 2021-06-03 | 2022-12-12 | 케이에이치건설 주식회사 | Pipe connecting structure and phc pile structure using the same |
| KR102503767B1 (en) | 2021-06-03 | 2023-02-27 | 케이에이치건설 주식회사 | Pipe connecting structure and phc pile structure using the same |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180817 |
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| WW01 | Invention patent application withdrawn after publication |