CN104988906B - tensioning fastener - Google Patents
tensioning fastener Download PDFInfo
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- CN104988906B CN104988906B CN201510311803.3A CN201510311803A CN104988906B CN 104988906 B CN104988906 B CN 104988906B CN 201510311803 A CN201510311803 A CN 201510311803A CN 104988906 B CN104988906 B CN 104988906B
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- Prior art keywords
- pitman
- inwall
- bulb
- stretching
- connection end
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- 229910000754 Wrought iron Inorganic materials 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Clamps And Clips (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention belongs to building element technical field, it is related to a kind of tensioning fastener.Solve the technical problem that prior art connection stretching force has much room for improvement.It includes two attaching nuts, pitman is located on two attaching nuts, the two ends of pitman respectively there is an external diameter to be more than the bulb for connecting rod outside diameter, attaching nut includes connection end and the stretching end being connected with each other, in connection end, inwall is provided with internal thread, in stretching end inwall provided with can allow the through hole that pitman passes through, and the inwall aperture of stretching end is less than the inwall aperture of connection end, so that the junction of stretching end inwall and connection end inwall forms the chuck for the bulb that can be blocked on pitman, the outer surface of chuck is connected with each other by least two supporting surfaces not at grade and formed.The present invention has the stretching force of higher intensity and Geng Gao, connects more reliable.
Description
Technical field
The invention belongs to building element technical field, it is related to a kind of tensioning fastener, it is adaptable to prefabricated component.
Background technology
Chinese patent literature, which is disclosed, pushes up pile extension and prefabricated component [publication number under a kind of upper spiral shell：C N1740456A], fastener
In female thread structure or in external thread structure or in interior interface arrangment or in outer interface arrangment, female thread structure, external thread structure,
Interior interface arrangment, the fastener bottom of chamber center of outer interface arrangment are provided with reinforced hole, and the periphery of reinforced hole one end is reinforcing bar end upset chuck,
The heading of reinforcing bar is connected in chuck.
The program fundamentally eliminates upper and lower pile crown plate, it is ensured that steel hoop on pile tube skeleton can not only be around to
Pile tube skeleton two ends, and it is able to ensure that its point is welded on the longitudinal reinforcement of skeleton, it is ensured that the uniformity of pile tube intensity, from basic
On avoid the fracture of pile tube with it is broken, solve some longitudinal reinforcements in pile tube and longitudinally hale extension uniformity, it is ensured that industrialization
Produce the uniformity of pile tube inherent quality in batches, but influenceed by bar diameter error, there is reinforcing bar and rise drawing nut or top
Drawing nut contact area is small, stress signal transmission is weak, is not easy to detection；Secondly as reinforcing bar end upset is big, not only needed during making
High-temperature process is heated to reinforcing bar, causes the intensity of reinforcing bar end upset and reinforcing bar end upset joint portion reinforcing bar to decline, reinforced steel bar strength is influenceed, and
And waste of raw materials is big, power consumption is high.
But in actual applications, the change in shape of reinforcing bar end upset is larger, it can not be realized preferably with the contact site of chuck
Laminating, causes to be declined by pulling force, influences performance.
The content of the invention
Regarding the issue above, the present invention provides a kind of higher tensioning fastener of stretching force.
To reach above-mentioned purpose, present invention employs following technical proposal：A kind of tensioning fastener, including two connection spiral shells
Mother, pitman is located on two attaching nuts, and there is an external diameter to be more than the swollen of connection rod outside diameter respectively at the two ends of pitman
Big portion, the center line of two attaching nuts is overlapped with the center line of pitman, two on pitman bulb respectively with two
Chuck on attaching nut tensioned fit one by one, described attaching nut includes connection end and the stretching end being connected with each other, even
Connect end inwall and be provided with internal thread, in stretching end inwall provided with can allow the through hole that pitman passes through, and the inwall aperture of stretching end is small
Inwall aperture in connection end so that stretching end inwall and connection end inwall junction formed can block it is swollen on pitman
The chuck in big portion, the outer surface of described chuck is connected with each other by least two supporting surfaces not at grade to be formed, and
The supporting surface being connected with the inwall of through hole is in smoothly transit with through-hole wall,
In above-mentioned tensioning fastener, the outer wall of described stretching end is not less than 4 polygon in side number, in stretching end
There is catching step, when fixture blocks stretching end, described catching step can prevent card between outer wall and the outer wall of connection end
Tool slides to connection end.
In above-mentioned tensioning fastener, what the bulb that being offered on described connection side wall can allow on pitman entered
Bulb passage, described tensioning side wall is provided with the rod iron passage that pitman can be allowed to enter and described rod iron passage extension
To the bottom of stretching end, bulb passage connection rod iron passage.
Compared with prior art, the advantage of the invention is that：Stretching force with higher intensity and Geng Gao, connection is more
Reliably.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention is provided；
Fig. 2 is the structural representation for the attaching nut that the present invention is provided；
Fig. 3 is another structural representation for the attaching nut that the present invention is provided；
Fig. 4 is another structural representation for the attaching nut that the present invention is provided；
Fig. 5 is another structural representation for the attaching nut that the present invention is provided；
Fig. 6 is another structural representation for the attaching nut that the present invention is provided；
Fig. 7 is Fig. 2 A direction views；
Fig. 8 is Fig. 3 A direction views；
Fig. 9 is the schematic diagram of the invention used on prefabricated component；
Figure 10 is the structural representation of the attaching nut of prior art；
Figure 11 is the stretching process schematic diagram of the present invention.
In figure：Attaching nut 1, pitman 2, bulb 3, chuck 4, connection end 5, stretching end 6, through hole 7, supporting surface 8, only
Keep off step 9, bulb passage 10, rod iron passage 11, fixed plate 91, stretch board 92, fixing bolt 93, tensioning bolt 94, positioning
Set 95, tensioning connecting plate 96, screw mandrel 97, tensioning nut 98, pipe die 99.
Embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Figure 10 show the attaching nut 1 of prior art, its only one of which supporting surface 8 of chuck 4, due to the table of bulb 3
Face is irregular shape, therefore the contact area when being contacted with bulb 3 of chuck 4 is smaller, and such as stretching force is excessive, bulb 3
It is easily separated from chuck 4.The outer wall of other connection end 5 and stretching end 6 is arc.
The invention provides a kind of tensioning fastener, as depicted in figs. 1 and 2, including two attaching nuts 1, pitman 2 is worn
On two attaching nuts 1, the two ends of pitman 2 have an external diameter more than the bulb 3 of the external diameter of pitman 2, two respectively
The center line of attaching nut 1 is overlapped with the center line of pitman 2, and two on pitman 2 bulb 3 is connected spiral shell with two respectively
The tensioned fit one by one of chuck 4 on mother 1, described attaching nut 1 includes connection end 5 and the stretching end 6 being connected with each other, in connection
5 inwalls are held to be provided with internal thread, in the inwall of stretching end 6 provided with can allow the through hole 7 that pitman passes through, and the inwall aperture of stretching end 6
Less than the inwall aperture of connection end 5, so that the junction of the inwall of stretching end 6 and the inwall of connection end 5, which is formed, can block pitman
On bulb 3 chuck 4, the outer surface of described chuck 4 is mutually interconnected by least two supporting surfaces 8 not at grade
Connect and form, and the supporting surface 8 being connected with the inwall of through hole 7 is in smoothly transit with the inwall of through hole 7,
As shown in figure 1, if it is desired that realizing that tensioning is connected, and can be inserted in two attaching nuts 1 between two attaching nuts 1
Into pitman 2, bulb 3 is formed after the two ends of pitman 2 are upset, bulb 3 is stuck in chuck 4, then spiral shell is connected by two
Female 1 tensioning round about, you can make two attaching nuts 1 realize tensioning connection.
Wherein, supporting surface 8 can be planar shaped or camber line.Attaching nut 1 shown in Fig. 2 has two supporting surfaces
8, it is planar shaped；Attaching nut 1 shown in Fig. 3 is also two supporting surfaces 8, and one of supporting surface 8 is planar structure, another
Individual supporting surface 8 is arcuate structure, and the supporting surface 8 of arcuate structure connects the inwall of stretching end 6；Two of attaching nut 1 shown in Fig. 4
Individual supporting surface 8 is arcuate structure；Attaching nut 1 shown in Fig. 6 has 3 supporting surfaces 8, is planar shaped.
The outer wall of stretching end 6 is not less than 4 polygon in side number, as shown in fig. 7, the outer wall of stretching end 6 is in regular hexagon, such as
Shown in Fig. 8, the outer wall of stretching end 6 is square.It is preferred that, the polygonal shape, 10 when number is 2 integral multiple or 8
Side shape etc..There is catching step 15 between the outer wall of stretching end 6 and the outer wall of connection end 5, when fixture blocks stretching end 6
When, described catching step 15 can prevent fixture from sliding to connection end 5, so that fixture fixes stretching end, can be with connection end 5
Connecting screw is screwed into, is easy to tensioning.
Attaching nut 1 also has another scheme, upset pitman 2 can be inserted into attaching nut, such as
Shown in Fig. 5, specific structure is to open up the bulb that the bulb 3 that can be allowed on pitman enters on the side wall of attaching nut 1 to lead to
Road 10, the side wall of attaching nut 1 is provided with the rod iron passage 11 that pitman 2 can be allowed to enter and described rod iron passage 11 is extended to and opened
The bottom of pull end 6, the connection rod iron of bulb passage 10 passage 11, bulb 3 and pitman 2 first have respectively entered bulb passage
10 and rod iron passage 11 in and enter further into inside attaching nut 1, the chuck 4 of attaching nut 1 is moved toward the direction of bulb 3
Bulb 3 can be blocked after dynamic.The advantage of this design be can by the two ends of pitman 2 in advance it is upset formation bulb 3, then with
Attaching nut 1 connects, so that for different Joining Technologies.
Following table is the attaching nut 1 of the application and the intensity contrast of attaching nut 1 of prior art.
As can be seen from the above table, than prior art, the intensity requirement of the application is higher, that is, the application can reach
Higher stretching force, is connected more reliable.By analysing and comparing, the application will generally improve 10-20% than the intensity of prior art.
Fig. 9 is the schematic diagram of the invention used on prefabricated component, and pitman 2 is located in prefabricated component 100, two attaching nuts 1
It is set in pitman 2 and positioned at the two ends of prefabricated component 100, connector is screwed into attaching nut 1, you can realizes that tensioning works.
Figure 11 show the schematic diagram of the stretching process of attaching nut 1.The attaching nut 1 at the two ends of pitman 2 is connected to
In fixed plate 91 and stretch board 92, the attaching nut 1 at fixed plate 91 is tightened with fixing bolt 93 so that attaching nut 1 is with consolidating
Fixed board 91 is fixedly connected, and the attaching nut 1 at stretch board 92 is spirally connected with tensioning bolt 94, and tensioning bolt 94 is fixed on stretch board 92
On, the two ends connection stretch board 92 and tensioning connecting plate 96 of positioning sleeve 95, tensioning nut 98 are fixed on tensioning connecting plate 96, silk
Bar 97 and tensioning nut 98 are affixed, rotary screw rod 97, and tensioning nut 98 drives tensioning connecting plate 96 to move, so as to drive stretch board
92 movements, the attaching nut 1 at the two ends of pitman 2 blocks bulb 3 respectively, so as to be tensioned.During tensioning, chuck 4 with
The contact surface of bulb 3 is in squeezed state, and therefore, contact surface area is bigger, then the stretching force that can be born is bigger.In stretching process
In, such as to keep axially linearly, stretch board 92, positioning sleeve 95 and tensioning connecting plate 96 are nested into pipe die 99.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more used herein attaching nut 1, pitman 2, bulb 3, chuck 4, connection end 5, stretching end 6,
Through hole 7, supporting surface 8, catching step 9, bulb passage 10, rod iron passage 11, fixed plate 91, stretch board 92, fixing bolt 93,
The terms such as tensioning bolt 94, positioning sleeve 95, tensioning connecting plate 96, screw mandrel 97, tensioning nut 98, pipe die 99, but be not precluded from making
With the possibility of other terms.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；It
Be construed to any additional limitation and all disagreed with spirit of the present invention.
Claims (3)
1. a kind of tensioning fastener, it is characterised in that including two attaching nuts (1), pitman (2) is located in two attaching nuts
(1) on, there is an external diameter to be more than the bulb (3) of pitman (2) external diameter respectively at the two ends of pitman (2), and two connect spiral shells
The center line of female (1) is overlapped with the center line of pitman (2), and two bulbs (3) on pitman (2) are connected with two respectively
Chuck (4) on nut (1) tensioned fit one by one, described attaching nut (1) includes connection end (5) and the tensioning being connected with each other
Hold (6), internal thread is provided with connection end (5) inwall, in stretching end (6) inwall provided with can allow the through hole (7) that pitman passes through, and
The inwall aperture of stretching end (6) is less than the inwall aperture of connection end (5), so that stretching end (6) inwall and connection end (5) inwall
Junction formed and can block the chuck (4) of bulb (3) on pitman, the outer surface of described chuck (4) is by least two
Individual supporting surface (8) not at grade is connected with each other and formed, and the supporting surface (8) being connected with the inwall of through hole (7) with
Through hole (7) inwall is in smoothly transit.
2. tensioning fastener according to claim 1, it is characterised in that the outer wall of described stretching end (6) is not small in side number
In 4 polygon, there is catching step (9) between the outer wall of stretching end (6) and the outer wall of connection end (5), when fixture is blocked
During stretching end (6), described catching step (9) can prevent fixture from sliding to connection end (5).
3. tensioning fastener according to claim 1 or 2, it is characterised in that offer energy on described connection end (5) side wall
The bulb passage (10) that the bulb (3) allowed on pitman (2) enters, described stretching end (6) side wall is provided with can the company of allowing
Take over the baton (2) entrance rod iron passage (11) and described rod iron passage (11) extends to the bottoms of stretching end (6), bulb passage
(10) connection rod iron passage (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311803.3A CN104988906B (en) | 2015-06-09 | 2015-06-09 | tensioning fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510311803.3A CN104988906B (en) | 2015-06-09 | 2015-06-09 | tensioning fastener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104988906A CN104988906A (en) | 2015-10-21 |
| CN104988906B true CN104988906B (en) | 2017-08-01 |
Family
ID=54300788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510311803.3A Active CN104988906B (en) | 2015-06-09 | 2015-06-09 | tensioning fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104988906B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113303621B (en) * | 2021-07-07 | 2023-05-09 | 海宁智盛自动化设备有限公司 | Pull buckle assembly for sofa and assembly method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204825861U (en) * | 2015-06-09 | 2015-12-02 | 周兆弟 | Stretch -draw fastener |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1219728A1 (en) * | 1983-07-08 | 1986-03-23 | Ленинградский Ордена Ленина Институт Инженеров Железнодорожного Транспорта Им.Акад.В.Н.Образцова | Butt joint of pile sections |
| JP2003239698A (en) * | 2002-02-14 | 2003-08-27 | Sasaki Giken:Kk | Resin bolt |
| CN103556624B (en) * | 2013-11-01 | 2016-02-24 | 建华建材（中国）投资有限公司 | Adapter sleeve, to produce and method of attachment containing the prefabricated units of this adapter sleeve and prefabricated units |
| CN103866761B (en) * | 2014-03-21 | 2016-04-06 | 李全民 | The mechanical connection pile crown of end plate recycling precast concrete pile and manufacture method thereof |
-
2015
- 2015-06-09 CN CN201510311803.3A patent/CN104988906B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204825861U (en) * | 2015-06-09 | 2015-12-02 | 周兆弟 | Stretch -draw fastener |
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| Publication number | Publication date |
|---|---|
| CN104988906A (en) | 2015-10-21 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170714 Address after: 215600 port town, Zhangjiagang, Jiangsu, China, Suzhou Patentee after: Jiangsu Tianhai building materials Co., Ltd. Address before: Kaohsiung streets Pu Beilun District 315800 in Zhejiang province Ningbo City No. 18 Patentee before: Zhou Zhaodi |
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| TR01 | Transfer of patent right |