CN207554529U - A kind of novel flaring screw-thread bush - Google Patents
A kind of novel flaring screw-thread bush Download PDFInfo
- Publication number
- CN207554529U CN207554529U CN201721672759.XU CN201721672759U CN207554529U CN 207554529 U CN207554529 U CN 207554529U CN 201721672759 U CN201721672759 U CN 201721672759U CN 207554529 U CN207554529 U CN 207554529U
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- China
- Prior art keywords
- screw
- thread bush
- thread
- peripheral surface
- flaring
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- Mutual Connection Of Rods And Tubes (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a kind of novel flaring screw-thread bush, is related to connector field, including：In the screw-thread bush of the integrated formed structure of hollow cylinder, screw-thread bush inner peripheral surface is provided with internal thread, peripheral surface is provided with external screw thread, the fixation of bushing is realized by being flared (2) and peripheral surface retaining ring (1), ensure the tightness of screw-thread bush, avoid using or decomposable process in screw-thread bush loosening and screw out；And screw-thread bush sets square endoporus twisting structure, convenient for assembly and decomposition in inner threaded surface.Compared with steel-wire screw-socket, the fixed form of this programme is more reliable, it is easier to assemble, be the higher screw-thread bush designing scheme of accuracy of thread；Compared with locking key type screw-thread bush, this programme is a kind of single component, and intensity higher is the screw-thread bush designing scheme with better assembling and maintainability.
Description
Technical field
The utility model is related to connector field, more particularly to a kind of novel flaring screw-thread bush.
Background technology
Screw-thread bush is usually the mechanical fastener with internal and external threads, is chiefly used in screwing in the softer threaded hole of basis material
In, it is used cooperatively with bolt, screw or stud, it is therefore an objective to obtain high intensity, high-wearing feature, high-precision internal thread, Yi Jibian
In the repair of internal thread, there is a large amount of application in aero-engine.The screw-thread bush used in aero-engine at present is main
There are two types of：One kind is steel-wire screw-socket；Another kind is locking key type screw-thread bush.
Steel-wire screw-socket exposes the problem of tightness is insufficient in the application, and aero-engine needs the higher screw thread of reliability
Connector.Locking key type screw-thread bush is sub-assembly, and number of parts is more, and needs to process keyway on external screw thread, and when installation will
Locking key is hammered in matrix threaded hole, and on the one hand processing is there are certain difficulty, particularly with thin wall type screw-thread bush, to processing essence
Degree and product strength requirement are very high, on the other hand are also inconvenient to install, installation steps are cumbersome, lack twisting structure.
Development and service condition based on existing screw-thread bush, with reference to aero-engine characteristics of demand, need to design one kind can
By property higher, the screw-thread bush for being more readily processed and installing.
Invention content
The utility model provides a kind of novel flaring screw-thread bush, to solve at least one existing for existing connector ask
Topic.
In order to achieve the above object, the utility model adopts the following technical solution：
A kind of novel flaring screw-thread bush, including：Screw-thread bush, in hollow cylinder, the screw-thread bush inner peripheral surface is set
Internal thread is equipped with, peripheral surface is provided with external screw thread, and retaining ring is set, and at the end in one end of the screw-thread bush peripheral surface
Be provided with flaring on inner peripheral surface, square endoporus twisting structure be set in the inner threaded surface of the screw-thread bush, it is convenient for assembly and
It decomposes.
Optionally, the screw-thread bush is an integral molding structure.
Optionally, the screw-thread bush inner peripheral surface is provided with countersunk head formula unthreaded hole section.
The beneficial effects of the utility model：The flaring screw-thread bush of the utility model, by designing retaining ring and flaring
Realize that screw-thread bush is reliably fixed, ensure that the tightness of screw-thread bush, avoid use or decomposable process in screw thread serve as a contrast
Set is loosened and is screwed out；Twisting structure is designed, improves assembling；Difficulty of processing reduces, and changes externally threaded notching construction, keeps away
Stress concentration is exempted from.
Description of the drawings
Attached drawing herein is incorporated into specification and forms the part of this specification, shows and meets the utility model
Embodiment, and for explaining the principle of the utility model together with specification.
Fig. 1 is the utility model flaring screw-thread bush schematic diagram；
Fig. 2 is the A-A views in Fig. 1；
Fig. 3 is the utility model flaring screw-thread bush sectional view.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.
As shown in Figure 1 to Figure 3, the novel flaring screw-thread bush of the utility model, including：It is served as a contrast in the screw thread of hollow cylinder
Set, screw-thread bush inner peripheral surface are provided with internal thread, and peripheral surface is provided with external screw thread, is provided in one end of screw-thread bush peripheral surface
Retaining ring 1, and flaring 2 is offered on the inner peripheral surface at the end, screw-thread bush sets square endoporus twisting in inner threaded surface
Structure 3, convenient for assembly and decomposition.In the present embodiment, screw-thread bush is preferably an integral molding structure, and reduces number of parts, excellent
Change structure type, facilitate installation.
Advantageously, screw-thread bush inner peripheral surface is provided with countersunk head formula unthreaded hole section, while conveniently opening up flaring 2, improves
It is screwed on the screw thread of phase accessory and integrality, effectively prevents the interference at screw-thread ending.
The novel flaring screw-thread bush of the utility model realizes bushing when mounted, by flaring 2 and peripheral surface retaining ring 1
Fixation, ensure bushing tightness, avoid using or decomposable process in bushing loosening and screw out.
The novel flaring screw-thread bush of the utility model by designing flaring 2 and retaining ring 1, ensure that screw-thread bush
Tightness, avoid using or decomposable process in screw-thread bush loosening and screw out；The design of integrated formed structure, reduces part
Quantity optimizes structure type；Assembling is improved by designing square endoporus twisting structure 3；Change externally threaded fluting knot
Structure avoids stress concentration, reduces difficulty of processing.Compared with steel-wire screw-socket, the novel flaring screw-thread bush that this programme proposes is consolidated
It is more reliable to determine mode, it is easier to assemble, be a kind of higher screw-thread bush designing scheme of accuracy of thread；With locking key type screw-thread bush
It compares, this programme is integrated formed structure, and intensity higher is that a kind of screw-thread bush with better assembling and maintainability is set
Meter scheme.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, the change that can readily occur in
Change or replace, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with described
Subject to scope of the claims.
Claims (3)
1. a kind of novel flaring screw-thread bush, which is characterized in that including：Screw-thread bush, in hollow cylinder, the screw-thread bush
Inner peripheral surface is provided with internal thread, and peripheral surface is provided with external screw thread, and retaining ring is set in one end of the screw-thread bush peripheral surface
(1), flaring (2) and on the inner peripheral surface at the end is provided with, setting square endoporus is pulled in the inner threaded surface of the screw-thread bush
It is twisted structure (3), convenient for assembly and decomposition.
2. novel flaring screw-thread bush according to claim 1, which is characterized in that the screw-thread bush is integrally formed knot
Structure.
3. novel flaring screw-thread bush according to claim 1, which is characterized in that set in the screw-thread bush inner peripheral surface
There is countersunk head formula unthreaded hole section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672759.XU CN207554529U (en) | 2017-12-05 | 2017-12-05 | A kind of novel flaring screw-thread bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672759.XU CN207554529U (en) | 2017-12-05 | 2017-12-05 | A kind of novel flaring screw-thread bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554529U true CN207554529U (en) | 2018-06-29 |
Family
ID=62664974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721672759.XU Active CN207554529U (en) | 2017-12-05 | 2017-12-05 | A kind of novel flaring screw-thread bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554529U (en) |
-
2017
- 2017-12-05 CN CN201721672759.XU patent/CN207554529U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |