CN201121630Y - Combined double-screw bolt - Google Patents
Combined double-screw bolt Download PDFInfo
- Publication number
- CN201121630Y CN201121630Y CN 200720113736 CN200720113736U CN201121630Y CN 201121630 Y CN201121630 Y CN 201121630Y CN 200720113736 CN200720113736 CN 200720113736 CN 200720113736 U CN200720113736 U CN 200720113736U CN 201121630 Y CN201121630 Y CN 201121630Y
- Authority
- CN
- China
- Prior art keywords
- screw
- connecting rod
- thread hole
- screw thread
- axial
- 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 - Fee Related
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a combination type stud, including a positioning nut (1), a long threaded rod (2), a connecting rod (3) and a screw (4); wherein, a part which is at the bottom of the screw head of the screw (4) and is not connected with the threaded rod is a plane (9); the long threaded rod (2) and the connecting rod (3) are respectively fixed on two head faces of the nut (1); axial screw holes are respectively arranged in the connecting rod (3), positioning nut (1) and the long threaded rod (2); the three axial screw holes are communicated as a whole; the screw (4) is revolved in the screw holes which are communicated as a whole; the connecting rod (3) is fixedly provided with a gasket (5); the gasket (5) is partially clung with the part which is at bottom of the screw head and is not connected with the threaded rod. The combination type stud has the advantages in that the connecting pieces are connected firmly, stably and detachably.
Description
Technical field:
The utility model relates to a kind of double-screw bolt, specifically is a kind of combined type double-screw bolt that connects the upper and lower pearl dish of universal wheels that is used for fixing.
Background technique:
Prior art is used for fixing the combined type double-screw bolt that connects the upper and lower pearl dish of universal wheels and generally comprises setscrew nut, long threaded stem and connecting rod; Described long threaded stem and connecting rod are fixedly connected on respectively on two end faces of setscrew nut.During use, connecting rod successively passes the through hole of upper and lower rotating disk, and the end riveting that connecting rod is not connected with setscrew nut of the punching press by punching equipment is in bottom surface that pearl is down coiled then.The combined type double-screw bolt of this structure is after punching press, and the try to get to the heart of a matter gap of face of the end that its connecting rod is not connected with setscrew nut and following pearl is bigger, thereby the connection that makes upper and lower pearl dish inadequately firmly and stablize; And, connecting rod by riveting after double-screw bolt just can not dismantle, this has brought inconvenience for later running repairs.
The model utility content:
The technical problems to be solved in the utility model is to provide a kind of connected piece that can make to connect more firmly, stablize and removable combined type double-screw bolt.
Technical solution of the present utility model is that a kind of combined type double-screw bolt with following structure is provided: it comprises setscrew nut, long threaded stem, connecting rod and screw; Described long threaded stem and connecting rod are separately fixed on two end faces of setscrew nut; The bottom surface of the screw terminal of the described screw not part of connecting thread bar is the plane; Be provided with the axial screw thread hole in the described connecting rod; Described screw screws in the axial screw thread hole.
After adopting above structure, compared with prior art, the utlity model has following advantage: the bottom surface of the screw terminal of the screw of the present utility model not part of connecting thread bar is the plane, this plane can closely contact with the bottom surface of connected piece, and by screw being screwed in the axial screw thread hole, thereby the end that connecting rod is not connected with setscrew nut and the gap of connected piece bottom surface have been reduced greatly, the pressure of screw can be evenly distributed on the surface of contact that is connected part, become more firmly, stablize thereby make to connect.In addition, the screw in the utility model can either screw in the axial screw thread hole of connecting rod, also can screw out from the axial screw thread hole, and dismounting is more convenient.
As a kind of improvement of the present utility model, be fixed with pad on the described connecting rod; The bottom surface of the screw terminal of described pad and the screw not part of connecting thread bar is close to.After adopting this improvement, because pad can be is respectively closely contacted with the bottom surface of the screw terminal of screw and the surface of connected piece, thereby increased the area of contact of screw terminal bottom surface and connected piece indirectly, the pressure of screw can be distributed on the surface that is connected part more equably, thereby further improve the soundness and the stability that connect.
Be fixed with pad on the above-mentioned connecting rod and refer to, be provided with two or more grooves near its end on the described connecting rod outer round surface, the internal circle of described pad is provided with two or more and may be stuck in the interior projection of groove.
As another kind of improvement the of the present utility model, also can be provided with the axial screw thread hole in the described setscrew nut, axial screw thread hole in the described setscrew nut and the axial screw thread hole in the connecting rod are communicated as one.After two axial screw thread holes are communicated as one, can make the utility model adopt the longer screw of threaded stem, thereby further improve soundness and the stability that connects.
As another improvement of the present utility model, described long threaded stem also can be provided with the axial screw thread hole; Axial screw thread hole in the described long threaded stem and the axial screw thread hole in the connecting rod and the axial screw thread hole in the setscrew nut are communicated as one.The same with above-mentioned improvement, after three axial screw thread holes are communicated as one, can make the utility model adopt the longer screw of threaded stem, thereby further improve soundness and the stability that connects.
Description of drawings:
Fig. 1 is provided with the broken section structural representation that tapped hole setscrew nut and long threaded stem are not provided with tapped hole for connecting rod in the utility model.
Fig. 2 is for being provided with the broken section structural representation that the long threaded stem of tapped hole is not provided with tapped hole in connecting rod in the utility model and the setscrew nut.
Fig. 3 is provided with the broken section structural representation of tapped hole for connecting rod, setscrew nut and long threaded stem in the utility model.
Fig. 4 is the plan structure schematic representation of the utility model Intermediate gasket.
Fig. 5 removes broken section structural representation behind the pad for Fig. 3.
Embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As Fig. 1, Fig. 4 and shown in Figure 5, the utility model combined type double-screw bolt comprise setscrew nut 1, long threaded stem 2, connecting rod 3 and its screw terminal bottom surface not the part of connecting thread bar be the screw 4 on plane; Described long threaded stem 2 and connecting rod 3 are separately fixed on two end faces of setscrew nut 1; Be provided with axial screw thread hole 61 in the described connecting rod 3; Described screw 4 screws in axial screw thread hole 61.Be fixed with pad 5 on the described connecting rod 3; The bottom surface of the screw terminal of described pad 5 and the screw 4 not part of connecting thread bar is close to.Described pad 5 is fixed on the connecting rod 3 and can adopts following concrete structure: be provided with two or more grooves 7 near its end on described connecting rod 3 outer round surface, the internal circle of described pad 5 is provided with two or more and may be stuck in projection 8 in the groove 7.The shape of described setscrew nut 1 can be outer-hexagonal shape or cylindrical.The utility model is preferably outer-hexagonal shape.Screw described in the utility model 4 can be cross recess coiled hair screw commonly used in the industry, and it also can be a cross recess cylinder screw.
As shown in Figure 2, be provided with axial screw thread hole 62 in the setscrew nut 1 described in the utility model combined type double-screw bolt, described axial screw thread hole 62 is communicated as one with axial screw thread hole 61.
As Fig. 3 and shown in Figure 5, be provided with axial screw thread hole 63 in the long threaded stem 2 described in the utility model combined type double-screw bolt; Described axial screw thread hole 63 is communicated as one with axial screw thread hole 62 and axial screw thread hole 61.The utility model combined type double-screw bolt is preferably the mode that three axial screw thread holes are communicated as one.
Screw described in the utility model 4 is not limited to cross recess coiled hair screw or cross recess cylinder screw, and it can also be cross recess outer-hexagonal screw, straight groove coiled hair screw, straight groove cylinder screw commonly used on the industry or the screw that has interior hexagonal counterbore screw terminal etc.; In addition, the shape of setscrew nut 1 also is not limited to outer-hexagonal shape and cylindrical, and it can also be square, an outer octagon etc., more than changes all falling into protection domain of the present utility model.
Claims (5)
1, a kind of combined type double-screw bolt comprises setscrew nut (1), long threaded stem (2) and connecting rod (3); Described long threaded stem (2) and connecting rod (3) are separately fixed on two end faces of setscrew nut (1), it is characterized in that: it also comprises a screw (4); The bottom surface of the screw terminal of described screw (4) the not part of connecting thread bar is plane (9); Be provided with axial screw thread hole (61) in the described connecting rod (3); Described screw (4) screws in tapped hole (61).
2, combined type double-screw bolt according to claim 1 is characterized in that: be fixed with pad (5) on the described connecting rod (3).
3, combined type double-screw bolt according to claim 2, it is characterized in that: be fixed with pad (5) on the described connecting rod (3) and refer to, be provided with two or more grooves (7) near its end on described connecting rod (3) external peripheral surface, the inner circumference limit of described pad (5) is provided with two or more and may be stuck in the interior projection (8) of groove (7).
4, combined type double-screw bolt according to claim 1 is characterized in that: be provided with axial screw thread hole (62) in the described setscrew nut (1), described axial screw thread hole (62) is communicated as one with axial screw thread hole (61).
5, according to claim 1 or 4 described combined type double-screw bolts, it is characterized in that: be provided with axial screw thread hole (63) in the described long threaded stem (2), described axial screw thread hole (63) is communicated as one with axial screw thread hole (62) and axial screw thread hole (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720113736 CN201121630Y (en) | 2007-08-24 | 2007-08-24 | Combined double-screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720113736 CN201121630Y (en) | 2007-08-24 | 2007-08-24 | Combined double-screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121630Y true CN201121630Y (en) | 2008-09-24 |
Family
ID=40008857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720113736 Expired - Fee Related CN201121630Y (en) | 2007-08-24 | 2007-08-24 | Combined double-screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121630Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179422A (en) * | 2015-10-28 | 2015-12-23 | 苏州道众机械制造有限公司 | Combined bolt |
| CN106050868A (en) * | 2016-08-22 | 2016-10-26 | 苏州市顺仪五金有限公司 | Combined screw |
-
2007
- 2007-08-24 CN CN 200720113736 patent/CN201121630Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179422A (en) * | 2015-10-28 | 2015-12-23 | 苏州道众机械制造有限公司 | Combined bolt |
| CN106050868A (en) * | 2016-08-22 | 2016-10-26 | 苏州市顺仪五金有限公司 | Combined screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20100824 |