CN201100300Y - Multi-stage pushing fastener - Google Patents
Multi-stage pushing fastener Download PDFInfo
- Publication number
- CN201100300Y CN201100300Y CNU2007200344480U CN200720034448U CN201100300Y CN 201100300 Y CN201100300 Y CN 201100300Y CN U2007200344480 U CNU2007200344480 U CN U2007200344480U CN 200720034448 U CN200720034448 U CN 200720034448U CN 201100300 Y CN201100300 Y CN 201100300Y
- Authority
- CN
- China
- Prior art keywords
- multistage push
- bolt
- swivel nut
- multistage
- stage pushing
- 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
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- 230000000149 penetrating effect Effects 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
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Abstract
A multi-stage pushing fastener is capable of pre-tightening a large workpiece without using a special device or a special tool and reliably preventing the large workpiece from loosening. The multi-stage pushing bolt consists of a conical stud bolt, a locking taper sleeve, a super gasket, a multi-stage pushing thread sleeve and a multi-stage pushing bolt. The tapered double-head bolt is made into a conical shape in the middle, two ends of the tapered double-head bolt are made into threads, a conical part in the middle is provided with a round flanging with the diameter equal to that of the super gasket at one end, a locking taper sleeve with an inner penetrating slot and an outer penetrating slot matched with the conical surface is axially arranged on the conical surface, the threaded parts at two ends of the tapered double-head bolt are respectively provided with the super gasket and a multi-stage pushing screw sleeve, the super gasket is arranged on the inner side, the multi-stage pushing screw sleeve is arranged on the outer side, the end surface of the multi-stage pushing screw sleeve is provided with a plurality of multi-stage pushing screw holes which are distributed with concentric circles and equal angles and penetrate along the. And a plurality of blind holes are drilled on the cylindrical surface of the multistage pushing screw sleeve at equal angles along the radial direction.
Description
1, affiliated technical field
The utility model relates to a kind of multistage push fastener of pretension large-scale workpiece.
2, background technique
At present, the pretension large-scale workpiece, the large-scale bolt or the nut that generally all adopt special device such as hydraulic elongator, hydraulic torque wrench or the direct pretension of special tool to be loaded on the workpiece are realized.Under the situation of no above-mentioned special device or special tool, just can not be with the large-scale workpiece pretension; Prevent loosening main methods such as spring washer, cotter pin or double nut, the poor reliability of adopting of workpiece.
3, summary of the invention
Present under the situation of no special device or special tool for overcoming, can not the drawback of large-scale workpiece pretension be reached and improve the reliability that prevents that workpiece is loosening, the utility model provides a kind of multistage push fastener.This multistage push fastener only need just can be easily with the large-scale workpiece pretension with the common manual torque wrench, and can prevent reliably that it from becoming flexible.
The scheme of the utility model technical solution problem is: the pretension large-scale workpiece, adopt a kind of multistage push fastener, and it is made up of taper stud bolt, locking tapered sleeve, super pad, multistage push swivel nut and multistage push bolt.The taper stud bolt is made taper shape in the middle of it, and screw thread is made at two; At the middle circle conical surface associated locking tapered sleeve is housed.One end of locking tapered sleeve has the circular flange with super pad equal diameters, on its conical surface, has the slit that an inside and outside penetrates vertically, and its outer surface contacts with pre-clamping of workpieces; Taper stud bolt two helical thread portion is equipped with super pad and multistage push swivel nut respectively.Super pad is contained in the inboard, and the one side contacts with locking tapered sleeve, and opposite side contacts with an end of each multistage push bolt.The multistage push swivel nut is contained in the outside, on its end face, is shaped on and becomes the concentric circle isogonism to distribute with it, and the multistage push screw that penetrates vertically is equipped with associated multistage push bolt above it, and what of its quantity are decided on the size of multistage push swivel nut; Multistage push bolt on taper stud bolt one head thread on the multistage push swivel nut is used for the pretension large-scale workpiece, and the multistage push bolt on the screw thread of other end on the multistage push swivel nut then is used to dismantle large-scale workpiece.At the barrel surface of multistage push swivel nut, radially be drilled with a plurality of blind holes that equal angles distributes.When the pretension large-scale workpiece, at first insert respectively in dismounting and the blind hole of pretension with the multistage push swivel nut with pole, manually it is twisted by super pad, repeatedly tighten the multistage push bolt on the pretension usefulness multistage push swivel nut on taper stud bolt one head thread one by one with manual torque wrench then, rely on all multistage push bolts to withstand on the axial jacking force that on the super pad taper stud bolt is produced, realization is with the purpose of large-scale workpiece pretension, simultaneously locking tapered sleeve relies on the special tapering of himself, can prevent the loosening of large-scale workpiece effectively.
The beneficial effects of the utility model are: when the pretension large-scale workpiece, do not need special device or special tool, only need the common manual torque wrench just can be easily that large-scale workpiece is fastening, and can prevent effectively that it is loosening, fastening convenient and swift, time saving and energy saving, economic security.
4, description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model embodiment's a longitudinal section tectonic maps.
Fig. 2 is the left view of Fig. 1.
Among the figure, 1. multistage push bolt, 2. multistage push swivel nut, 3. super pad, 4. locking tapered sleeve, 5. taper stud bolt, 11. an end of multistage push bolt, 21. multistage push swivel nut end faces, 22. multistage push screws, 23. multistage push swivel nut barrel surface, 24. blind hole, 31. super pad one sides, 32. super pad opposite sides, 41. locking tapered sleeve one end, 42. locking tapered sleeve conical surface, the 43. locking tapered sleeve the other ends, 51. taper stud bolt middle circle tapers, 52. taper stud bolt one head thread, 53. taper stud bolt other end screw threads.
5, embodiment
Consult embodiment illustrated in fig. 1ly below, technical solutions of the utility model are described further: multistage push fastener, form by multistage push bolt (1), multistage push swivel nut (2), super pad (3), locking tapered sleeve (4), taper stud bolt (5).Taper stud bolt (5), make taper shape (51) in the middle of it, screw thread (52) and (53) are made in two, and conical therebetween (51) part is equipped with associated locking tapered sleeve (4), one end (41) has the circular flange with super pad (3) equal diameters, on its conical surface (42), have the slit that an inside and outside penetrates vertically, its conical surface (42) contacts with pre-clamping of workpieces, workpiece by pretension after, can prevent effectively that workpiece is loosening; Super pad (3) and multistage push swivel nut (2) are housed respectively on a head thread (52) of taper stud bolt (5), super pad (3) is contained in the inboard, one side (31) contacts with the other end (43) of locking tapered sleeve (4), opposite side (32) contacts with an end (11) of multistage push bolt (1), and multistage push bolt (1) is played a supportive role; Multistage push swivel nut (2) is contained in the outside, on its end face (21), is shaped on and becomes the concentric circle equal angles to distribute with it, and the multistage push screw (22) that penetrates vertically is equipped with associated multistage push bolt (1) above it, and it is used for the pretension large-scale workpiece.What of multistage push bolt (1) decide on the size of multistage push swivel nut (2), and multistage push swivel nut (2) is big more, and the multistage push bolt (1) that it is equipped with above is just many more.On the barrel surface (23) of multistage push swivel nut (2), radially be shaped on a plurality of equal angles and distribute, have the blind hole (24) of certain depth, insert in it with the pole that matches, can manually multistage push swivel nut (2) be turned; On the other end screw thread (53) of taper stud bolt (5), be equipped with respectively with one head thread (52) and go up super pad (3) and the multistage push swivel nut (2) that structure is identical, fit is identical, the multistage push bolt (1) that it is equipped with above is used to dismantle large-scale workpiece.When the pretension large-scale workpiece, at first insert in the blind hole (24) of the multistage push swivel nut (2) on taper stud bolt (5) the other end screw thread (53) with pole, with manual mode its end face (21) is twisted by behind super pad (3) opposite side (32), adopt manual torque wrench repeatedly to tighten all multistage push bolts (1) on the multistage push swivel nut (2) on taper stud bolt (5) one head threads (52), can the pretension large-scale workpiece.When the dismounting large-scale workpiece, adopt same quadrat method, at first with after the dismounting of the multistage push swivel nut (2) on taper stud bolt (5) one head threads (52), repeatedly tighten all the multistage push bolts (1) on the multistage push swivel nut (2) on taper stud bolt (5) the other end screw thread (53), can realize dismantling large-scale workpiece.
Claims (3)
1. multistage push fastener, by the taper stud bolt, locking tapered sleeve, super pad, multistage push swivel nut and multistage push bolt are formed, it is characterized in that: taper shape is made in the centre of taper stud bolt, screw thread is made at two, at the middle circle tapering part, associated locking tapered sleeve is housed, its two helical thread portion, super pad and multistage push swivel nut are housed respectively, super pad is contained in the inboard, and the one side contacts with locking tapered sleeve, and the multistage push swivel nut is contained in the outside, the multistage push bolt is housed above it, and an end of multistage push bolt contacts with super pad.
2. multistage push fastener according to claim 1 is characterized in that: an end of locking tapered sleeve has the circular flange with super pad equal diameters, on its conical surface, has the slit that the inside and outside penetrates vertically.
3. multistage push fastener according to claim 1, it is characterized in that: on the end face of multistage push swivel nut, being shaped on it becomes the concentric circle equal angles to distribute, the a plurality of multistage push screws that penetrate vertically are equipped with associated multistage push bolt above it, how much the deciding on the size of multistage push swivel nut of its quantity, the multistage push swivel nut is big more, the multistage push bolt that it is equipped with above is just many more, and at the barrel surface of multistage push swivel nut, radially equal angles is drilled with a plurality of blind holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200344480U CN201100300Y (en) | 2007-02-09 | 2007-02-09 | Multi-stage pushing fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200344480U CN201100300Y (en) | 2007-02-09 | 2007-02-09 | Multi-stage pushing fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100300Y true CN201100300Y (en) | 2008-08-13 |
Family
ID=39936835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200344480U Expired - Lifetime CN201100300Y (en) | 2007-02-09 | 2007-02-09 | Multi-stage pushing fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100300Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425568A (en) * | 2016-10-25 | 2017-02-22 | 江苏北方湖光光电有限公司 | Clamping method and device for balancing locking force from bottom to top |
| CN113280024A (en) * | 2020-02-20 | 2021-08-20 | 西门子歌美飒可再生能源创新与技术有限公司 | Apparatus and method for providing a secure tension connection |
-
2007
- 2007-02-09 CN CNU2007200344480U patent/CN201100300Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425568A (en) * | 2016-10-25 | 2017-02-22 | 江苏北方湖光光电有限公司 | Clamping method and device for balancing locking force from bottom to top |
| CN113280024A (en) * | 2020-02-20 | 2021-08-20 | 西门子歌美飒可再生能源创新与技术有限公司 | Apparatus and method for providing a secure tension connection |
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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: 20080813 |
|
| CX01 | Expiry of patent term |