CN206478097U - A kind of nut - Google Patents
A kind of nut Download PDFInfo
- Publication number
- CN206478097U CN206478097U CN201720076074.2U CN201720076074U CN206478097U CN 206478097 U CN206478097 U CN 206478097U CN 201720076074 U CN201720076074 U CN 201720076074U CN 206478097 U CN206478097 U CN 206478097U
- Authority
- CN
- China
- Prior art keywords
- nut
- nut body
- hole
- regular hexagon
- screwed hole
- 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.)
- Active
Links
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model discloses a kind of nut, including nut body, axially screwed hole is provided with inside nut body, the profile of the nut body is cylinder, one end closing of nut body, nut body blind end is provided with axially extending regular hexagon post, and the regular hexagon post and nut body are coaxial, and the length of side of regular hexagon post is less than the cross sectional radius of nut body.Nut body one end is closed, and can prevent air from entering between nut and stud, so as to prevent nut from becoming rusty with stud dead, is reduced the corrosion of stud, is extended the service life of bolt.During using this nut adpting flange, additionally it is possible to reduce flange total quality.
Description
Technical field
The utility model is related to a kind of fastener, particularly a kind of nut.
Background technology
Flange connection in high pressure, extra-high pressure vessel is generally attached using big hexagonal stud, because bolt is long
Phase exposes in atmosphere, will get rusty in the course of time, causes stud to be become rusty with nut dead, it is impossible to dismantle；And in practice
It has also been found that, because the bolt quantity being distributed on flange is more, bolt specification is big, therefore spacing is small between the nut of adjacent bolt, enters
During row fastening, operating space is small to cause operation inconvenience, in order to meet the tightening operation of nut, and the distance between adjacent two nut must
The operation requirement of tightening tool need be met, therefore, bolt hole center's circle actual diameter on flange is often bigger than theoretical diameter,
And after actual diameter increase, due to the change in torque of bolt hole to flange center, cause the thickness of flange, flange external diameter all with
Increase, ultimately result in flange total quality and be substantially increased.
Utility model content
Technical problem to be solved in the utility model is：There is provided one kind can prevent stud and nut from becoming rusty dead and can reduce
The nut of flange total quality.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of nut, including nut body,
Screwed hole is axially provided with inside nut body, the profile of the nut body is cylinder, one end closing of nut body, spiral shell
Maternal body blind end is provided with axially extending regular hexagon post, and the regular hexagon post and nut body are coaxial, regular hexagon post
The length of side be less than nut body cross sectional radius.
As a kind of preferred scheme, the depth of the screwed hole is less than the height of nut body.
Axially be provided with as a kind of preferred scheme, inside the regular hexagon post one communicated with screwed hole it is blind
Hole, the blind hole and screwed hole are coaxial, and the diameter of blind hole is less than the diameter of screwed hole.
As a kind of preferred scheme, also axially arranged in the nut body to have an anticollision hole, the anticollision hole position is in blind
Between hole and screwed hole and three is interconnected, anticollision hole and screwed hole are coaxial, and the diameter in anticollision hole is more than screwed hole.
As a kind of preferred scheme, the bottom surface of the screwed hole is provided with a spherical surface hill.
The beneficial effects of the utility model are：Nut body one end is closed, and can prevent air from entering between nut and stud,
So as to prevent nut and stud from becoming rusty dead, the corrosion of stud is reduced, extends the service life of bolt, in addition, not changing nut sheet
On the premise of body minimum wall thickness (MINI W.), the profile of nut body is arranged to cylinder, compared with the heavy series hexagon nut of same specification, reduced
Rotation external diameter, so as to expand the spacing between adjacent two nut；When turning nut, regular hexagon post is forced in, due to just
The length of side of hexagon post is less than the cross sectional radius of nut body, and therefore, the spacing of the regular hexagon post on adjacent two nut is more
Greatly, enough operating spaces are provided to turn nut, therefore, compared with traditional heavy series hexagon nut, uses the utility model
Described nut, the bolt hole center's circle size that can be reduced on flange is final to realize so as to reduce the external diameter and thickness of flange
Quality declines to a great extent in flange, is enterprise reduces manufacturing cost.
Brief description of the drawings
Fig. 1 is the half-sectional structural representation of the first embodiment of the utility model；
Fig. 2 is top view of the present utility model；
Fig. 3 is the half-sectional structural representation of second of specific embodiment of the utility model；
Fig. 4 is the assembling structure schematic diagram using traditional heavy series hexagon nut adpting flange；
Fig. 5 is the assembling structure schematic diagram using nut adpting flange described in the utility model.
In Fig. 1~Fig. 5：1st, nut body, 2, screwed hole, 3, regular hexagon post, 4, blind hole, 5, anticollision hole, 6, sphere it is convex
Rise, 7, blind flange, 8, heavy series hexagon nut.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail.
It is a kind of the first embodiment of nut described in the utility model as shown in Figure 1 and Figure 2, including nut sheet
Body 1, the inside of nut body 1 is axially provided with screwed hole 2, and the profile of the nut body 1 is cylinder, the one of nut body 1
End seal is closed, and the blind end of nut body 1 is provided with axially extending regular hexagon post 3, and the regular hexagon post 3 and nut body 1 are same
Axle, the length of side of regular hexagon post 3 is less than the cross sectional radius of nut body 1.
The one end of nut body 1 is closed, and can prevent air from entering between nut and stud, so as to prevent nut from being become rusty with stud
Extremely, the corrosion of stud is reduced, extends the service life of bolt；In addition, on the premise of the minimum wall thickness (MINI W.) of nut body 1 is not changed,
The profile of nut body 1 is arranged to cylinder, compared with the heavy series hexagon nut 8 of same specification, is not changing nut mechanical property
On the premise of, rotation external diameter is reduced, so as to expand the spacing between adjacent two nut；Secondly, when turning nut, force in
Regular hexagon post 3, because the length of side of regular hexagon post 3 is less than the cross sectional radius of nut body 1, therefore, on adjacent two nut
Regular hexagon post 3 spacing it is bigger, enough operating spaces are provided to turn nut, therefore, with traditional big hexagonal spiral shell
Mother 8 compares, using nut adpting flange described in the utility model, and the bolt hole center on flange justifies smaller, so as to lead
The external diameter and the equal relative decrease of thickness of flange are caused, the decline of flange gross mass is finally realized, is that enterprise reduces manufacturing cost.
The depth of the screwed hole 2 is less than the height of nut body 1, improves the connection of regular hexagon post 3 and nut body 1
Intensity.
The inside of regular hexagon post 3 is axially provided with a blind hole 4 communicated with screwed hole 2, the blind hole 4 and screwed hole
2 is coaxial, diameter of the diameter less than screwed hole 2 of blind hole 4, and also axially arranged in the nut body 1 to have an anticollision hole 5, this is prevented
Hit hole 5 be located between blind hole 4 and screwed hole 2 and three be interconnected, anticollision hole 5 and screwed hole 2 are coaxial, the diameter in anticollision hole 5
More than screwed hole 2.
Set and can be inserted into blind hole 4 and length is more than the thimble of the depth of blind hole 4 in corresponding stud end when using, can be with
The end and the bottom surface of screwed hole 2 for preventing stud are extruded, so as to prevent from causing nut suitable because stud end screw thread is destroyed
Profit is unloaded from stud.
If the length of thimble is set greater than into the depth of blind hole 4 but less than blind hole 4 and the depth sum in anticollision hole 5,
So, when the nut 34 is tightened, stud end is then located in anticollision hole 5, and the screw thread quantity that now nut is connected with stud is most,
After power suffered by nut is divided equally on each circle screw thread, the power suffered by each circle screw thread is minimum, so as to extend nut and
The service life of stud.
If Fig. 3 is second of embodiment of the present utility model, as figure shows, the embodiment and the first
The difference of embodiment is that embodiment does not set blind hole 4 and anticollision hole 5 in ground two, but in screw thread
The bottom surface in hole 2 sets a spherical surface hill 6, removes behind anticollision hole 5, the depth of screwed hole 2 is accordingly deepened, thus ensure nut with
The screw thread quantity that stud connects, spherical surface hill 5 can offset with stud end face, prevent screw thread and the bottom surface of screwed hole 2 of stud end
Extruding, so as to protect the screw thread of stud end.
Fig. 4 and Fig. 5 are using the adpting flange of heavy series hexagon nut 8 respectively and utilize nut connection method described in the utility model
Flange in blue structural representation, Fig. 4 and Fig. 5 is blind flange 7, wherein, the size of blind flange 7 and bolt shown in Fig. 4 is such as
Shown in table 1：
Table 1:
The size of blind flange 7 and bolt shown in Fig. 5 is as shown in table 2：
Table 2：
Pass through the contrast of Tables 1 and 2, it is evident that understand, after nut has been changed, the reduced diameter of blind flange 7
60mm, flange thickness reduces 15mm, and oeverall quality reduces 227.7kg, described in the utility model so as to obtain conclusion
Nut can reduce flange total quality.
Operation principle of the present utility model is：Nut body diameter is less than to angular diameter by being set on nut body 1
Regular hexagon post 3, when making to turn nut, active force is acted on regular hexagon post 3, so as to increase on adjacent two nut
Spacing between regular hexagon post 3, in the case where ensureing the basis of minimum operation spacing, makes the bolt on flange arrange closer to flange
Center, to reduce flange center to the distance of bolt, so that reduce the moment of torsion suffered by flange, the basis reduced in flange moment of torsion
On, the deformation quantity of flange reduces, therefore the external diameter and thickness of slab of flange can accordingly reduce, so as to realize the drop of flange gross mass
It is low.
Claims (5)
1. a kind of nut, including nut body (1), nut body (1) is internal to be axially provided with screwed hole (2), it is characterised in that
The profile of the nut body (1) is cylinder, and one end closing of nut body (1), nut body (1) blind end is provided with axle
To the regular hexagon post (3) of extension, with nut body (1) coaxially, the length of side of regular hexagon post (3) is small for the regular hexagon post (3)
Cross sectional radius in nut body (1).
2. a kind of nut according to claim 1, it is characterised in that the depth of the screwed hole (2) is less than nut body
(1) height.
3. a kind of nut according to claim 2, it is characterised in that the regular hexagon post (3) is internal to be axially provided with
One blind hole (4) for being communicated with screwed hole (2), with screwed hole (2) coaxially, the diameter of blind hole (4) is less than screwed hole to the blind hole (4)
(2) diameter.
4. a kind of nut according to claim 3, it is characterised in that also axially arranged in the nut body (1) to have one
Anticollision hole (5), the anticollision hole (5) is located between blind hole (4) and screwed hole (2) and three is interconnected, anticollision hole (5) and screw thread
Coaxially, the diameter of anticollision hole (5) is more than screwed hole (2) in hole (2).
5. a kind of nut according to claim 2, it is characterised in that the bottom surface of the screwed hole (2) is provided with a sphere
Raised (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076074.2U CN206478097U (en) | 2017-01-19 | 2017-01-19 | A kind of nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076074.2U CN206478097U (en) | 2017-01-19 | 2017-01-19 | A kind of nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206478097U true CN206478097U (en) | 2017-09-08 |
Family
ID=59754124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720076074.2U Active CN206478097U (en) | 2017-01-19 | 2017-01-19 | A kind of nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206478097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441926A (en) * | 2018-12-20 | 2019-03-08 | 海盐华通金属制品有限公司 | A kind of expansion nut of top closure |
-
2017
- 2017-01-19 CN CN201720076074.2U patent/CN206478097U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441926A (en) * | 2018-12-20 | 2019-03-08 | 海盐华通金属制品有限公司 | A kind of expansion nut of top closure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206539586U (en) | A kind of locking fastener | |
| CN206478097U (en) | A kind of nut | |
| CN206918008U (en) | A kind of check bolt | |
| CN203743167U (en) | Self-locking nut | |
| CN103075400B (en) | Shear resistant quick adjusting threaded connection assembly and using method thereof | |
| CN207814176U (en) | A kind of combination nut | |
| CN201786862U (en) | Inner hexagonal bolt | |
| CN201739306U (en) | Tetragonal full-thread bolt device | |
| CN108223533A (en) | Six side's anti-rotation self-locking baffle ring in one kind | |
| CN210318125U (en) | Fastening device | |
| CN207048536U (en) | A kind of load-carrying construction unidirectionally adjusted | |
| CN113586590A (en) | High-locking anti-crack mandrel and closing method thereof | |
| CN207526849U (en) | A kind of bilateral positioning screw cap | |
| CN203357355U (en) | Spanner for screwing stud | |
| CN210830056U (en) | Anti-loosening bolt | |
| CN115704388A (en) | Cylinder structure and compressor | |
| CN211975639U (en) | Locking nut | |
| CN218913427U (en) | High-strength bolt | |
| CN203125390U (en) | Boosting double offset ring spanner | |
| CN210565623U (en) | Wire blank for eccentric screw machining | |
| CN219795799U (en) | Hexagonal flange plum blossom groove self-extruding screw | |
| CN208107064U (en) | A kind of bolt locking device of engineering machinery counter weight | |
| CN205331174U (en) | It uses special -shaped nut to drive board assembly | |
| CN208185186U (en) | A kind of screw assemblies | |
| CN215720091U (en) | Gear groove anti-drop bolt for aviation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |