CN205446298U - Wedge type fastens structure - Google Patents
Wedge type fastens structure Download PDFInfo
- Publication number
- CN205446298U CN205446298U CN201521094597.7U CN201521094597U CN205446298U CN 205446298 U CN205446298 U CN 205446298U CN 201521094597 U CN201521094597 U CN 201521094597U CN 205446298 U CN205446298 U CN 205446298U
- Authority
- CN
- China
- Prior art keywords
- loop bar
- wedge
- hole
- fastening
- screw rod
- 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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Abstract
The utility model relates to a fastener technical field discloses a wedge type fastens structure for adj. Tabular the fastening of a plurality of looks closed assemblies including loop bar, screw rod, wedge, is equipped with the through -hole of alignment on a plurality of adj. Tabular of the closed assembly, and the loop bar passes all through -holes, and the loop bar lies in the outer both ends of through -hole and is stiff end and fastening end respectively, and the stiff end of loop bar is equipped with screw and cooperation has a nut, and the nut pastes with adj. Tabular of lieing in outer end mutually, the fastening end of loop bar is equipped with coaxial screw hole, and the screw rod cooperation is conical at threaded hole, the tip of screw rod, wedge sliding connection is and the axis of slip direction and loop bar is perpendicular on the loop bar, and the drive end of wedge is equipped with the matched with of the conical end portion concave arc face with the screw rod, and the execution end of wedge is the tappred plane. Adopt above -mentioned scheme, bear the screw thread of main atress when effectively having protected the fastening, prolonged the life of fastener, avoid to fasten the mechanical event who became invalid and cause.
Description
Technical field
This utility model relates to technical field of fastening.
Background technology
Securing member is commercially also referred to as standard component, be two or more parts (or component) are fastenedly connected become one overall time the general name of class machine components that used.Its feature is that description is various, and performance purposes is different, and standardization, seriation, unitized strong, and securing member is most widely used mechanical basic part, is in great demand.
The more commonly used securing member is bolt, i.e. uses nut screw connection by a screw rod through parts to be tightened, one end or two ends, and screw on nut is by member grip, thus realizes the fastening between parts.But, when using above-mentioned fastening structure, clamping force is directly passed to nut by the parts fastened so that screw thread, by the biggest shearing force, fragile screw thread, causes fastening to lose efficacy.
Utility model content
This utility model is intended to provide one to avoid fastening thread damage, relatively reliable Wedge-type fastening structure.
Wedge-type fastening structure in this programme, fastening for the plate-like piece of multiple phase closed assemblies, including loop bar, screw rod, wedge, some plate-like pieces of closed assembly are provided with the through hole of alignment, described loop bar passes all through holes, the two ends that loop bar is positioned at outside through hole are respectively fixing end and fastening end, and the fixing end of loop bar is provided with screw thread and is combined with nut, and nut and the plate-like piece being positioned at outermost end are affixed；The fastening end of loop bar is provided with coaxial screwed hole, and screw rod coordinates in screwed hole, and the end of screw rod is cone；Wedge is slidably connected on loop bar and glide direction is vertical with the axis of loop bar, the drive end of wedge is provided with the cancave cambered surface that the conical end with screw rod matches, the actuating station of wedge is tapered plane, is machined with and tapered plane that this tapered plane matches on the through hole that fastening end is outer end plate-like piece of loop bar.
Beneficial effect: before plate-like piece is installed, need to hole fastening position, then by loop bar through the through hole drilled through, the fixing end of loop bar screws on nut and carries out spacing；The fastening end rotary screw of loop bar, makes screw rod feeding, and the conical end of screw rod promotes wedge to slide, thus is extrapolated by wedge, until the tapered plane at the plate-like piece through hole position of the tapered plane of wedge and outermost end offsets, so that fastening to the plate-like piece of closed assembly；Owing to wedge is arranged, fastening force is divided into axially and radially power, has shared a part of shearing force of screw thread, so effectively protecting screw thread.Use such scheme, bear the screw thread of main stress when effectively protecting fastening, extend the service life of securing member, it is to avoid the mechanical accident caused that lost efficacy should be fastened.
Further, the quantity at least two of described wedge, it is evenly distributed on the radial circumference of loop bar；Increase fastening point so that being more uniformly stressed, it is more firm to fasten.
Further, the angle of the tapered plane of described wedge and set rod axis is 30-45 degree；Angle is less than 30 degree, and fastening stroke is too big, and angle is more than 45 degree, and the shearing force that screw thread is subject to is excessive, does not has the effect of protection screw thread.
Further, being additionally provided with and be connected with screwed hole and the smooth hole of close wedge in described loop bar, the diameter of smooth hole is more than screwed hole diameter；Reducing the length at screw thread position, reduce difficulty of processing, the most also reduce and answer threaded brought frictional force, screw rod screws more laborsaving.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model Wedge-type fastening feature embodiments.
Detailed description of the invention
Below by detailed description of the invention, this utility model is described in further detail:
Reference in Figure of description includes: plate-like piece 1, loop bar 2, nut 21, screw rod 22, wedge 23.
Embodiment is the most as shown in Figure 1:
Wedge-type fastening structure in this programme, fastening for the plate-like piece 1 of multiple phase closed assemblies, including loop bar 2, screw rod 22, wedge 23, some plate-like pieces 1 of closed assembly are provided with the through hole of alignment, loop bar 2 is through all through holes, the two ends that loop bar 2 is positioned at outside through hole are respectively fixing end and fastening end, and the fixing end of loop bar 2 is provided with screw thread and is combined with nut 21, and nut 21 and the plate-like piece 1 being positioned at outermost end are affixed.
The fastening end of loop bar 2 is machined with coaxial screwed hole, and screw rod 22 coordinates in screwed hole, and the end of screw rod 22 is cone；Wedge 23 is slidably connected on loop bar 2 and glide direction is vertical with the axis of loop bar 2, the drive end of wedge 23 is provided with the cancave cambered surface that the conical end with screw rod 22 matches, the actuating station of wedge 23 is tapered plane, is machined with and tapered plane that this tapered plane matches on the through hole of the plate-like piece that fastening end is outer end 1 of loop bar 2.
The quantity of wedge 23 is two, is evenly distributed on the radial circumference of loop bar 2；Increase fastening point so that being more uniformly stressed, it is more firm to fasten.The tapered plane of wedge 23 and the angle of loop bar 2 axis are 30-45 degree；Angle is less than 30 degree, and fastening stroke is too big, and angle is more than 45 degree, and the shearing force that screw thread is subject to is excessive, does not has the effect of protection screw thread.
Also being machined with in loop bar 2 and be connected with screwed hole and the smooth hole of close wedge 23, the diameter of smooth hole is more than screwed hole diameter；Reducing the length at screw thread position, reduce difficulty of processing, the most also reduce and answer threaded brought frictional force, screw rod 22 screws more laborsaving.
Operation principle: before plate-like piece 1 is installed, need to hole fastening position, then by loop bar 2 through the through hole drilled through, the fixing end of loop bar 2 screws on nut 21 and carries out spacing；The fastening end rotary screw 22 of loop bar 2, making screw rod 22 feeding, the conical end of screw rod 22 promotes wedge 23 to slide, thus is extrapolated by wedge 23, until the tapered plane at the plate-like piece 1 through hole position of the tapered plane of wedge 23 and outermost end offsets, so that fasten to the plate-like piece 1 of closed assembly；Owing to wedge 23 is arranged, fastening force is divided into axially and radially power, has shared a part of shearing force of screw thread, so effectively protecting screw thread.
Above-described is only embodiment of the present utility model, and in scheme, the known general knowledge such as concrete structure and characteristic too much describes at this.Should be understood that; for a person skilled in the art, on the premise of without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.
Claims (4)
1. a Wedge-type fastening structure, fastening for the plate-like piece of multiple phase closed assemblies, it is characterized in that: include loop bar, screw rod, wedge, some plate-like pieces of closed assembly are provided with the through hole of alignment, described loop bar passes all through holes, the two ends that loop bar is positioned at outside through hole are respectively fixing end and fastening end, and the fixing end of loop bar is provided with screw thread and is combined with nut, and nut and the plate-like piece being positioned at outermost end are affixed；The fastening end of loop bar is provided with coaxial screwed hole, and screw rod coordinates in screwed hole, and the end of screw rod is cone；Wedge is slidably connected on loop bar and glide direction is vertical with the axis of loop bar, the drive end of wedge is provided with the cancave cambered surface that the conical end with screw rod matches, the actuating station of wedge is tapered plane, is machined with and tapered plane that this tapered plane matches on the through hole that fastening end is outer end plate-like piece of loop bar.
Wedge-type fastening structure the most according to claim 1, it is characterised in that: the quantity at least two of described wedge, it is evenly distributed on the radial circumference of loop bar.
Wedge-type fastening structure the most according to claim 2, it is characterised in that: the angle of the tapered plane of described wedge and set rod axis is 30-45 degree.
Wedge-type fastening structure the most according to claim 3, it is characterised in that: being additionally provided with in described loop bar and be connected with screwed hole and the smooth hole of close wedge, the diameter of smooth hole is more than screwed hole diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521094597.7U CN205446298U (en) | 2015-12-26 | 2015-12-26 | Wedge type fastens structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521094597.7U CN205446298U (en) | 2015-12-26 | 2015-12-26 | Wedge type fastens structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446298U true CN205446298U (en) | 2016-08-10 |
Family
ID=56577920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521094597.7U Expired - Fee Related CN205446298U (en) | 2015-12-26 | 2015-12-26 | Wedge type fastens structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022875A (en) * | 2019-12-25 | 2021-06-25 | 海鹰航空通用装备有限责任公司 | Locking mechanism and undercarriage and unmanned aerial vehicle provided with same |
| CN113482231A (en) * | 2021-07-30 | 2021-10-08 | 刘长友 | Assembly type building module and preparation process thereof |
-
2015
- 2015-12-26 CN CN201521094597.7U patent/CN205446298U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113022875A (en) * | 2019-12-25 | 2021-06-25 | 海鹰航空通用装备有限责任公司 | Locking mechanism and undercarriage and unmanned aerial vehicle provided with same |
| CN113022875B (en) * | 2019-12-25 | 2023-06-02 | 海鹰航空通用装备有限责任公司 | Locking mechanism and landing gear and unmanned aerial vehicle provided with same |
| CN113482231A (en) * | 2021-07-30 | 2021-10-08 | 刘长友 | Assembly type building module and preparation process thereof |
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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: 20160810 Termination date: 20161226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |