CN202451571U - External traveling nut - Google Patents
External traveling nut Download PDFInfo
- Publication number
- CN202451571U CN202451571U CN2011205544899U CN201120554489U CN202451571U CN 202451571 U CN202451571 U CN 202451571U CN 2011205544899 U CN2011205544899 U CN 2011205544899U CN 201120554489 U CN201120554489 U CN 201120554489U CN 202451571 U CN202451571 U CN 202451571U
- Authority
- CN
- China
- Prior art keywords
- nail
- hole
- curved surface
- female
- parent
- 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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Abstract
The utility model provides an external traveling nut, relates to a nut for installation on a curved surface, and aims to solve the problem that centering of axes of a screw hole and a screw during the installation on the curved surface is difficult. The external traveling nut includes a child nail, a parent nail and a spring, wherein the front end of the child nail penetrates a through hole in the middle of the parent nail; the spring is arranged at the part where the child nail is intersected with the parent nail; the child nail adopts an internal thread structure; the parent nail adopts an external thread structure; the through hole of the parent nail consists of four eccentric holes; the inner diameter of each eccentric hole is bigger than the diameter of the child nail; the child nail has a certain traveling distance after penetrating the through hole; four bayonets are arranged on one end surface of the parent nail; and the child nail is provided with the relative displacement distance and axial rotation distance in the axial direction in the parent nail. The external traveling nut provided by the utility model realizes the reliable assembly between a curved surface sheet metal component and a curved surface part, solves the problem of assembly difficulty caused by the poor machining precision of the sheet metal component, guarantees the airtightness of parts, and eliminates the internal stress generated during the installation on the curved surface and caused by the deflection of centers of the screw hole and the through hole.
Description
Technical field
The utility model relates to a kind of nut that curved surface is installed that is used for, and particularly relates to a kind of external mounted that curved surface installs nut that moves about that is used for.
Background technique
The problem of screw hole and screw axis centering difficulty when installing through curved surface in order to solve part; Make equipment when removing and installing, save trouble efficient and can eliminate the internal stress that part is produced when mounted; Can have higher air seal in the component that assurance is mounted, it is very necessary that the use of the nut that moves about just seems.
The model utility content
The purpose of the utility model is screw hole and the difficult problem of screw axis centering when solving the curved surface installation; A kind of external mounted nut that moves about is provided; Can realize the reliability assembling of curved surface sheet metal part and curved surface part; Solved the problem of the not high assembling difficulty that causes of sheet metal part machining accuracy, guaranteed the tightness of component, eliminated the curved surface installation because the screw hole and the through hole hole heart depart from the internal stress that is produced.
For realizing above-mentioned purpose; The technological scheme that the utility model adopts is: a kind of external mounted nut that moves about, comprise son nail, female nail and spring, and wherein female nail middle part is a through hole; Son nail front end passes female nail; Spring is arranged on son nail and female position of intersecting of following closely, and its neutron nail is female thread structure, and female the nail is external thread structure.
In technique scheme, the through hole of said female nail is made up of four eccentric openings, and the internal diameter of eccentric opening has certain free movement greater than the diameter of son nail after the son nail passes through hole.
In technique scheme, said female nail one end face is provided with four bayonet sockets, is used for the female nail of external tool rotation and gets into predetermined blind hole.
In technique scheme, said son nail has relative shift and axial rotating amount at axial direction in mother follows closely.
Can find out that from the said structure characteristic of above-mentioned the utility model its advantage is: can realize the reliability assembling of curved surface sheet metal part and curved surface part, solve the problem of the not high assembling difficulty that causes of sheet metal part machining accuracy; Guaranteed the tightness of component, eliminated the curved surface installation because the screw hole and the through hole hole heart depart from the internal stress that is produced.
Description of drawings
The utility model will and combine the mode of instance to explain through the accompanying drawing comparison:
Fig. 1 is the structure cross-sectional schematic of the utility model;
Fig. 2 is the utility model plan structure schematic representation;
The 4th, bayonet socket.
Embodiment
Through embodiment the utility model is done further explanation below in conjunction with accompanying drawing:
As depicted in figs. 1 and 2, a kind of external mounted of the utility model nut that moves about comprises son nail, female nail and spring; Wherein female nail middle part is a through hole, and sub-nail front end passes female nail, and spring is arranged on son and follows closely the position of intersecting with female nail; Its neutron nail is female thread structure, and female nail is external thread structure.
The concrete technological scheme of the utility model can be described as: according to the screw size of required installation confirm the to move about Screw of nut and the outside dimension of spring; Confirm move about the son nail of nut and the length of female nail according to the screw length of required installation, and the axial length of spring.Female nail inner via hole is made up of four eccentric openings, and is bigger than son nail external diameter, guaranteed certain free movement.To follow closely four positive bayonet sockets through mother when the nut that moves about is installed and screw in the screw blind hole of accomplishing fluently in advance by instrument.Son nail can have the relative shift and the amount of rotating in a circumferential direction at axial direction with mother's nail under external force, when rotating to certain position with limited, thereby can guarantee the pretightening force that screw lock is required.Female nail, son nail all are to select for use according to the GB regulation to be applicable to that the material of making fastening piece processes when producing, thereby and carry out the intensity that corresponding quenching with Subsequent tempering guarantees part.Its neutron nail employing stainless steel material carries out machine and adds, and carries out corresponding heat treatment and antirust processing; Spring adopts Spring Steel Wire to bend, and carries out corresponding heat treatment and antirust processing, makes it have suitable initial tension of spring; Female nail employing stainless steel material carries out machine and adds, and carries out corresponding heat treatment.As shown in Figure 1, with built-in son nail cover upper spring, to follow closely the bottom from mother and penetrate, the mode of turning over riveting with machinery is fixed on the son nail in female nail, the adjustment assembling that sub-nail can move about in limited field and realize the axial-radial position.Nut after the assembling will have the free movement that radius is R0.5mm, can realize the reliability assembling of curved surface sheet metal part and curved surface part, solve the problem of the not high assembling difficulty that causes of sheet metal part machining accuracy.
Disclosed all characteristics in this specification except mutually exclusive characteristic, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
Claims (4)
1. external mounted nut that moves about is characterized in that comprising son nail, female nail and spring, and wherein female nail middle part be a through hole, and son nail front end passes female nail, and spring is arranged on the position that son nail and female nail intersect, and its neutron nail is female thread structure, and female nail is an external thread structure.
2. the external mounted according to claim 1 nut that moves about is characterized in that the through hole of said female nail is made up of four eccentric openings, and the internal diameter of eccentric opening is greater than the diameter of son nail, follows closely at son to have certain free movement after passing through hole.
3. the external mounted according to claim 1 and 2 nut that moves about is characterized in that said female nail one end face is provided with four bayonet sockets, is used for the female nail of external tool rotation and gets into predetermined blind hole.
4. the external mounted according to claim 2 nut that moves about is characterized in that said son nail in mother follows closely, and has relative shift and axial rotating amount at axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205544899U CN202451571U (en) | 2011-12-27 | 2011-12-27 | External traveling nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205544899U CN202451571U (en) | 2011-12-27 | 2011-12-27 | External traveling nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451571U true CN202451571U (en) | 2012-09-26 |
Family
ID=46867437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205544899U Expired - Lifetime CN202451571U (en) | 2011-12-27 | 2011-12-27 | External traveling nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451571U (en) |
-
2011
- 2011-12-27 CN CN2011205544899U patent/CN202451571U/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |