CN202500880U - Anti-loosening type steel wire screw sleeve - Google Patents
Anti-loosening type steel wire screw sleeve Download PDFInfo
- Publication number
- CN202500880U CN202500880U CN2012200961397U CN201220096139U CN202500880U CN 202500880 U CN202500880 U CN 202500880U CN 2012200961397 U CN2012200961397 U CN 2012200961397U CN 201220096139 U CN201220096139 U CN 201220096139U CN 202500880 U CN202500880 U CN 202500880U
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- cross
- screw sleeve
- swivel nut
- wire screw
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Abstract
The utility model discloses an anti-loosening type steel wire screw sleeve. The anti-loosening type steel wire screw sleeve comprises a spring-shaped inner and outer thread concentric body, the cross section of the outer thread of the inner and outer thread concentric body is triangular, the exterior angle of the cross section is 60 degrees; the cross section of the inner thread and the cross section of the outer thread of the inner and outer thread concentric body are symmetrically arranged, and the interior angle of the cross section of the inner thread is 60 degrees, wherein one inclined edge is wedge-shaped at the position close to the teeth bottom, and the wedge-shaped angle is beta. The anti-loosening type steel wire screw sleeve realizes the self locking between the inner thread of a screw sleeve and the thread of a connecting bolt by changing the shape of the cross shape of the wires of the steel wire screw sleeve, and has reliable seismic resistance and looseness prevention.
Description
Technical field
The utility model relates to a kind of threaded connector, particularly relates to a kind of locking shaped steel silk swivel nut.
Background technique
Steel-wire screw-socket is a kind of novel threaded fastener, and it is a kind of concentric body of a kind of spring-like internal and external threads that is accurately processed by the Stainless Steel Wire of highi degree of accuracy diamond-shaped cross-section.During use, on matrix, process thread Pilot hole, be installed in steel-wire screw-socket in the bottom outlet again, form and the identical standard female of regular screw threads size, can screw with the outside thread product of standard with special-purpose bottom outlet screw tap.It is embedded in the screw thread of low intensive engineering materials such as cast iron, glass fibre reinforced plastics, plastics, aluminium or magnesium alloy, have join strength, shock resistance and the anti abrasive function of increasing, and can protect the matrix screw thread by dispersive stress, prolong the working life of matrix greatly.In addition, the screw thread that steel-wire screw-socket can also be on protocorm is threaded off or during random tooth, as the reparation means, and the unlikely integral body that causes is scrapped, and easy to maintenance, fast, economical.At present, the steel-wire screw-socket technology has been widely used in industries such as Aeronautics and Astronautics, weapons, electrical equipment, instrument, automobile transportation, mine metallurgy, building, water pump, chemical fibre, chemical industry.
The ordinary steel wire swivel nut divides from its mounting type, and can be divided into two kinds: (1) has the mounting handle steel-wire screw-socket, also has been referred to as the handle swivel nut or the tail swivel nut is arranged; (2) no mounting handle steel-wire screw-socket is also referred to as stockless swivel nut or anury swivel nut.Having the tail steel-wire screw-socket can be divided into again has snap slot and does not have two kinds of snap slots, has the swivel nut of snap slot to be used for through hole, and the swivel nut of no snap slot is used for blind hole.The anury steel-wire screw-socket all has a similar ancistroid,ancistrous draw-in groove at two ends, when the anury swivel nut is installed, uses special-purpose setting tool, need not to distinguish the direction of swivel nut, directly installs to get final product.But the plain edition steel-wire screw-socket does not possess anti-loosening property, for this reason, on plain edition steel-wire screw-socket basis, develops a kind of lock type steel-wire screw-socket; There is the above polygonal clamp ring of a circle lock type steel-wire screw-socket intermediate portion, and when bolt is screwed into screw one half, bolt head is run into clamp ring; At this moment need to be screwed into the instrument reinforcing, the bolt spreading polygonal clamp ring of steel-wire screw-socket, conversely; The position, middle footpath of bolt has been blocked in the polygonal clamp ring, has played the locking effect.When being shaken and impact, screw can not become flexible, still; This lock type steel-wire screw-socket processing technology is complicated; Cost is high, also following problem can occur in the use: when (1) bolt screws in the polygonal clamp ring, receive the radially effect of chucking power; Improper like Deformation control, swivel nut can rotate with bolt; When (2) bolt screws out, receive the radially effect of chucking power equally, also can cause swivel nut to draw off with the bolt one.
The model utility content
The utility model purpose is to the defective that existing technology exists a kind of locking shaped steel silk swivel nut to be provided, and can realize effectively locking purpose.
The utility model adopts following technological scheme for realizing above-mentioned purpose: locking shaped steel silk swivel nut, comprise the concentric body of the internal and external threads that is spring-like, and the outside thread cross section shape triangular in shape of the concentric body of said internal and external threads, its exterior angle is 60 °; The internal thread cross section and the outside thread cross section of the concentric body of said internal and external threads are symmetrical set, and its interior angle is 60 °, and wherein a hypotenuse is being wedge shape near the tooth bottom, and its key groove is β.
As preferably, said β angle is between 25 °-35 °.
As preferably, said β angle is 30 °.
The beneficial effect of the utility model really is: through changing the sectional shape of steel-wire screw-socket silk material, just can realize the self-locking between swivel nut internal thread and the connecting bolt screw thread, have reliable antidetonation, anti-loosening property; Load evenly distributes, and improves fatigue strength; Do not receive the influence of temperature acute variation and environment; Need not any auxiliary locking original paper,, reduce overall cost like spring washer, lock washer etc.
Description of drawings
Fig. 1 is the plan view of the locking shaped steel silk of the utility model swivel nut;
Fig. 2 is an existing technology steel-wire screw-socket silk material sectional view;
Fig. 3 is the locking shaped steel silk of a utility model swivel nut silk material sectional view;
Fig. 4 is the locking shaped steel silk of a utility model swivel nut scheme of installation.
Among the figure, the locking shaped steel silk of 1-swivel nut, 2-matrix, 3-bolt, the concentric body of 12-internal and external threads.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the described technological scheme of the utility model is done further to set forth.
Shown in Figure 2 is existing technology ordinary steel wire swivel nut silk material sectional view.As shown in figures 1 and 3, locking shaped steel silk swivel nut 1 comprises the concentric body 12 of the internal and external threads that is spring-like; The outside thread cross section shape triangular in shape of the concentric body 12 of said internal and external threads; Its exterior angle is 60 °, and internal thread cross section and outside thread cross section are symmetrical set, and its interior angle is 60 °; And wherein a hypotenuse is being wedge shape near the tooth bottom, and its key groove is β.Change between 25 °-35 ° at said β angle.Its optimal value β=30 °.Silk material cross section shown in Figure 3 has been applicable to tail locking shaped steel silk swivel nut and the locking shaped steel silk of anury swivel nut.As shown in Figure 4; Locking shaped steel silk swivel nut 1 is screwed in the matrix 2; When bolt 3 and locking shaped steel silk swivel nut 1 are tightened; 30 ° of wedge shape inclined-planes that the crest threaded line total length of bolt 3 gets into the swivel nut internal thread are tightened, and put on the normal force that is produced on the wedge shape inclined-plane and become 60 ° of angles with the axis of bolt 3, rather than 30 ° of angles of common standard screw thread.The normal force that produces when therefore fastening has greatly anti-loose ability much larger than the common standard screw thread.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1. locking shaped steel silk swivel nut comprises the concentric body of the internal and external threads that is spring-like (12), it is characterized in that: the outside thread cross section shape triangular in shape of the concentric body of said internal and external threads (12), and its exterior angle is 60 °; The internal thread cross section and the outside thread cross section of the concentric body of said internal and external threads (12) are symmetrical set, and its interior angle is 60 °, and wherein a hypotenuse is being wedge shape near the tooth bottom, and its key groove is β.
2. locking shaped steel silk swivel nut according to claim 1 is characterized in that: said β angle is between 25 °-35 °.
3. locking shaped steel silk swivel nut according to claim 1 and 2, it is characterized in that: said β angle is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200961397U CN202500880U (en) | 2012-03-06 | 2012-03-06 | Anti-loosening type steel wire screw sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200961397U CN202500880U (en) | 2012-03-06 | 2012-03-06 | Anti-loosening type steel wire screw sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500880U true CN202500880U (en) | 2012-10-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200961397U Expired - Fee Related CN202500880U (en) | 2012-03-06 | 2012-03-06 | Anti-loosening type steel wire screw sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606604A (en) * | 2012-03-06 | 2012-07-25 | 无锡市务达五金制品有限公司 | Anti-loosing steel wire thread sleeve |
-
2012
- 2012-03-06 CN CN2012200961397U patent/CN202500880U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606604A (en) * | 2012-03-06 | 2012-07-25 | 无锡市务达五金制品有限公司 | Anti-loosing steel wire thread sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20140306 |