CN203756701U - DTFLOCK swivel nut - Google Patents
DTFLOCK swivel nut Download PDFInfo
- Publication number
- CN203756701U CN203756701U CN201320869634.1U CN201320869634U CN203756701U CN 203756701 U CN203756701 U CN 203756701U CN 201320869634 U CN201320869634 U CN 201320869634U CN 203756701 U CN203756701 U CN 203756701U
- Authority
- CN
- China
- Prior art keywords
- swivel nut
- executing
- dtflock
- utility
- firm
- 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.)
- Expired - Lifetime
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000007769 metal material Substances 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a DTFLOCK swivel nut. The section of a thread coil of the DTFLOCK swivel nut is a heptagon with wedge-shaped edges. A steel wire swivel nut is a novel inner-outer thread fastener, can be embedded into metal materials or non-metal materials to form high-strength wear-resisting standard M or MJ threads with interchangeability, and can also be used for repairing a worn or damaged internal thread hole. According to the novel DTFLOCK swivel nut provided by the utility model, the section shape of the thread coil is successfully changed based on the traditional steel wire swivel nut, so the best thread locking effect is achieved.
Description
Technical field
The utility model relates to a kind of fastening piece, and particularly relating to a kind of executing must firm swivel nut.
Background technique
Steel-wire screw-socket (expanding cover also referred to as silk braid, swivel nut, screw thread) is a kind of novel internal and external threads fastening piece, can embed and in metal or nonmetallic material, form high strength, wear-resistant and there is standard M, the MJ screw thread of interchangeability, also can be used for the interior threaded hole of repairing wearing and tearing or damaging.As illustrated in Figures 5 and 6, traditional steel-wire screw-socket is the inside and outside body helical coil 20 with one heart of helical accurately forming by cold rolling STAINLESS STEEL DRAW WIRE 21.The helical coil cross section 23 of traditional steel-wire screw-socket is that diamond shaped is hexagonal, forms the triangle tooth form screw thread 24 of standard.In actual use, after bolt is screwed into, because actual conditions are screw threads, machining error causes pitch to exist deviation, large footpath to exist deviation, central diameter to have the factors such as deviation, makes near one to the three circle screw thread surface of contact end of the bolt formation pretension that contacts with swivel nut face.Most of screw threads do not contact, in neutral state.Therefore, its contact friction force is little, and screw thread is easy to become flexible when being subject to external force vibration, is more unfavorable for the long-term use of bolt.The stressed of one to three circle can accelerate distortion and the damage of stressed screw thread, affects the working life of whole bolt.Therefore, those skilled in the art is devoted to develop a kind of steel-wire screw-socket of lock type.
Model utility content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is that every circle screw thread can be in contact condition when the screw thread of bolt and the internal thread of swivel nut contact formation pretension, and the pretightening force that bolt is respectively enclosed on screw thread is evenly distributed.
In order to solve the problems of the technologies described above, the utility model provides a kind of the executing must firm swivel nut, when embedding, can form high strength, wear-resistant and have standard M, the MJ screw thread of interchangeability in metal or nonmetallic material, also can be used for the interior threaded hole of repairing wearing and tearing or damaging.
In better embodiment of the present utility model, execute must firm swivel nut helical coil cross section be the Heptagon with wedge shape limit, between adjacent sections tooth form, there is identical pitch, the central diameter spacing that is two cross section tooth forms of arbitrary neighborhood equates, every circle helical coil has identical key groove, key groove be wedge shape limit and body shaft to angle.
Further, described key groove is more than or equal to 0 degree, is less than or equal to 40 degree.
Alternatively, described key groove is more than or equal to 35 degree, is less than or equal to 40 degree.
Preferably, described key groove equals 40 degree.
Alternatively, described key groove is more than or equal to 0 degree, is less than or equal to 20 degree.
Further, described in, execute and must by stainless steel, be made by firm swivel nut.
Cross section of executing helical coil that must firm swivel nut provided by the utility model is the Heptagon with wedge shape limit.After bolt is screwed into, bolt large diameter and wedge shape edge joint touch, and under pretightening force effect, on bolt, all Major Diams limit and wedge shape limit produce certain resiliently deformable and make it pretension.And be that on bolt, all Major Diams are all pushed down wedge shape limit simultaneously, so the pretightening force that bolt respectively encloses on screw thread is evenly distributed, contact friction force is large, thereby has best anti-loosing effect, reaches the object of locking.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is the sectional view of preferred embodiment of the present utility model.
Fig. 2 is the zoomed-in view of A in Fig. 1.
Fig. 3 is the sectional view of the assembling of preferred embodiment of the present utility model.
Fig. 4 is the zoomed-in view of B in Fig. 3.
Fig. 5 is the sectional view of traditional steel-wire screw-socket.
Fig. 6 is the zoomed-in view of C in Fig. 5.
Embodiment
Executing shown in Fig. 1 and Fig. 2 must comprise having spiral helicine body 10 by firm swivel nut, body 10 has at least one helical coil 11, its cross section 13 is for having the Heptagon on wedge shape limit 12, between adjacent sections tooth form, there is identical pitch, every circle helical coil has identical key groove α, α is the axial angle of wedge shape limit and body 10, and the thread profile 14 that two adjacent rings helical coil forms is wedge shapes.
By Fig. 3 and Fig. 4, provided, when bolt connects, bolt 30 must connect as one with workpiece 40 by firm swivel nut 10 by executing.Under pretightening force effect, on bolt 30 all screw threads 31 with execute must firm swivel nut wedge shape limit 12 produce certain resiliently deformable and make it pretension.The screw thread 31 of standard compliant bolt 30 always can compress wedge shape limit 12 simultaneously.As long as its large footpath changes within the tolerance range of regulation, can both reach this effect, thereby make the screw thread 31 of bolt 30 every circles stressed, be impartial, and make bolted contact force reach best anti-loosing effect.
In the present embodiment execute must firm swivel nut key groove α can be set to be more than or equal to 0 degree, be less than or equal to 40 degree.
Executing in the present embodiment must be provided with mounting handle in one end of body 10 by firm swivel nut, and mounting handle and body joint are provided with groove, is convenient to executing and must after firm swivel nut installation, thrust dismounting.
Executing in the present embodiment must adopt stainless steel to make by firm swivel nut, and hardness is higher, non-corrosive.Be applicable to long-term use.Especially be applied in light metal and nonmetallic material, advantage is obvious.In the screw damaging, also can be used as a kind of means that facilitate of recovery technique.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (5)
1. executing must a firm swivel nut, comprises and has spiral helicine body, and described body has at least one helical coil, it is characterized in that, the cross section of described helical coil is the Heptagon with wedge shape limit, has identical pitch between adjacent sections tooth form, and every circle helical coil has identical key groove.
2. according to claim 1 executing must firm swivel nut, it is characterized in that, described key groove is more than or equal to 0 degree, is less than 40 degree.
3. according to claim 1 executing must firm swivel nut, it is characterized in that, described key groove is 40 degree.
4. according to claim 1 executing must firm swivel nut, it is characterized in that, one end of body is provided with mounting handle, and described mounting handle and body joint are provided with groove.
5. according to claim 1 executing must firm swivel nut, it is characterized in that, described in execute and must by stainless steel, be made by firm swivel nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320869634.1U CN203756701U (en) | 2013-12-26 | 2013-12-26 | DTFLOCK swivel nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320869634.1U CN203756701U (en) | 2013-12-26 | 2013-12-26 | DTFLOCK swivel nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756701U true CN203756701U (en) | 2014-08-06 |
Family
ID=51251982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320869634.1U Expired - Lifetime CN203756701U (en) | 2013-12-26 | 2013-12-26 | DTFLOCK swivel nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650083A (en) * | 2016-03-14 | 2016-06-08 | 北京首航科学技术开发有限公司 | Swivel nut and connecting assembly with swivel nut |
-
2013
- 2013-12-26 CN CN201320869634.1U patent/CN203756701U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650083A (en) * | 2016-03-14 | 2016-06-08 | 北京首航科学技术开发有限公司 | Swivel nut and connecting assembly with swivel nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |