CN205689553U - A kind of hollow bolt - Google Patents
A kind of hollow bolt Download PDFInfo
- Publication number
- CN205689553U CN205689553U CN201620655721.0U CN201620655721U CN205689553U CN 205689553 U CN205689553 U CN 205689553U CN 201620655721 U CN201620655721 U CN 201620655721U CN 205689553 U CN205689553 U CN 205689553U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- hollow bolt
- cannelure
- rod
- head
- 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
Links
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of hollow bolt, including head and screw rod, described screw rod bottom centre is provided with oil outlet along axis, described screw rod include the cannelure being arranged on described screw rod, elastic rod between described head and described cannelure, bottom described screw rod to the threaded rod between described cannelure, be communicated with in the oil filler point of described oil outlet in described cannelure.This utility model has the following advantages and effect: this programme utilizes new frame for movement, use the elastic rod that elastomeric material makes, produce after elastic rod radially deforms upon spring energy preferably fit with in the hole of parts, improve the sealing property of hollow bolt, coordinate with triangle thread after axially deforming upon simultaneously, it is that sealing ring coordinates while improving the self-locking property of hollow bolt, improves the sealing property of hollow bolt.Screw rod uses hollow-core construction, reduces cost of manufacture, has reached good, the excellent self-locking property of sealing performance, the effect of low cost of manufacture.
Description
Technical field
This utility model relates to fastener areas, particularly to a kind of hollow bolt.
Background technology
Hollow bolt was again oil draining bolt, be used for petroleum pipeline, water-supply-pipe connect seal, be widely used in automobile, boats and ships,
The engine fuel systems such as machinery, have fastening and excessively oily dual-use function.
Application publication number is that the Chinese patent " a kind of hollow bolt " of CN102748358A discloses a kind of hollow bolt, bag
Including head and screw rod, described screw rod bottom centre position is provided with a groove vertically, and described screw rod is provided with one and is perpendicular to
The cylindrical hole of the axis of described groove.
But this hollow bolt has the disadvantage in that when this hollow bolt of use carried out oil, cylindrical through hole two ends
Opening is positioned at screw rod curved surface, and owing to the aperture inwall on screw rod and parts is rigid contact, oil is easily by hollow bolt screw rod
And the gap seepage between aperture inwall.
Utility model content
The purpose of this utility model is to provide the hollow bolt of a kind of good sealing effect.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of hollow bolt, bag
Including head and screw rod, described screw rod bottom centre is provided with oil outlet along axis, and described screw rod includes being arranged on described screw rod
Cannelure, elastic rod between described head and described cannelure, bottom described screw rod between described cannelure
Threaded rod, be communicated with in the oil filler point of described oil outlet in described cannelure.
By using technique scheme, the bolt on hollow bolt is connected to parts through the aperture rear thread on parts
On, parts are fastened, the oil in parts is by going out from oil outlet after the oil filler point in cannelure simultaneously, reaches the work of oil
With, the elastic rod being provided with between cannelure and head due to bolt, make threaded rod produce elastic deformation after receiving extruding,
Laminating with member aperture inwall, improve sealing property, simultaneously cross oil time flowing fluid oil towards oil filler point flow time, strike
After screw rod curved surface near oil filler point can overflow axially along a screw, and by oil filler point being arranged in cannelure near oil filler point
The part flowed vertically changes direction after striking cannelure inwall, will not flow to screw rod and parts the most axially along a screw
In the gap of aperture inwall, the pressure received in reducing screw rod and member aperture inwall gap, oil will not permeate, sealing effectiveness
Good.
Of the present utility model it is further arranged to: described oil filler point is three and divides along described cannelure outer wall even circumferential
Cloth.
By using technique scheme, it is provided with three in oil filler point, increased oil mass, at cannelure outer wall even circumferential
Distribution, all can carry out oil to the oil of surrounding, improves the mistake oiliness energy of hollow bolt.
Of the present utility model it is further arranged to: described head is provided with for placing sealing near the end face of described screw rod
The seal groove of circle.
By using technique scheme, the seal groove at bolt head is embedded in sealing ring, can play hollow bolt
To the effect of secondary seal, can reach to prevent oil seepage, be avoided that again the dust impurity in the external world enters and pollute.
Of the present utility model it is further arranged to: described elastic rod is that beryllium-bronze makes.
By using technique scheme, beryllium-bronze is most widely used a kind of beryllium alloy, has the highest elastic limit,
Produce elastic deformation after radially receiving extruding after inserting member aperture, fit in aperture inwall, reduce screw rod and member aperture
Gap between inwall, additionally increases the self-locking property of hollow bolt after axially deforming upon.
Of the present utility model it is further arranged to: described threaded rod outer wall is provided with triangle thread.
By using technique scheme, compared to other screw threads, triangle thread self-locking performance is more preferable, then with elastic rod phase
Coordinate mutually, improve the self-locking property of hollow bolt further, make the gap between head and parts less, strengthen hollow bolt
Sealing property.
Of the present utility model it is further arranged to: described oil outlet is provided with chamfering away from one end of described head.
By using technique scheme, oil outlet is provided with chamfering, makes the opening on oil outlet become big, when oil outlet is fuel-displaced
Speed faster, improves the mistake oiliness energy of hollow bolt.
Of the present utility model it is further arranged to: described screw surface is provided with one layer of catalytic nickel phosphor coating.
By using technique scheme, the catalytic nickel phosphor coating of screw surface, antiseptic property is the highest, and heatproof is permissible
Reaching 500 DEG C, smooth surface, greasy dirt impurity is difficult to deposition.
In sum, this utility model has the advantages that the elastic rod using elastomeric material to make, at elastic rod
Produce spring energy after radially deforming upon preferably to fit with in the hole of parts, improve the sealing property of hollow bolt, axle simultaneously
Coordinate with triangle thread after deforming upon, be that sealing ring coordinates while improving the self-locking property of hollow bolt, reach
Improve the sealing property of hollow bolt further.Screw rod uses hollow-core construction, reduces cost of manufacture, has reached sealing performance
Good, excellent self-locking property, the effect of low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is side structure schematic diagram of the present utility model；
Fig. 3 is cross-sectional view of the present utility model.
In figure: 1, head；11, seal groove；2, screw rod；21, elastic rod；22, cannelure；23, threaded rod；231, triangle
Shape screw thread；3, oil filler point；4, oil outlet；41, chamfering；5, catalytic nickel phosphor coating.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Specific embodiment is only that it is not to restriction of the present utility model, this area to explanation of the present utility model
The present embodiment can be made after reading this specification by technical staff as required does not has the amendment of creative contribution, but only
All to be protected by Patent Law in right of the present utility model.
A kind of hollow bolt, as it is shown in figure 1, include head 1 and screw rod 2, head 1 is hexagon, convenient manufacture and use,
Head 1 is provided with a circle seal groove 11 near the end face of screw rod 2, is used for placing sealing ring.As it is shown on figure 3, the outer wall of screw rod 2 sets
There is one layer of catalytic nickel phosphor coating 5, be used for preventing greasy dirt from piling up, improve the service life of hollow bolt.As it is shown in figure 1, in screw rod 2
Portion is provided with cannelure 22, and the position screw rod 2 between cannelure 22 and head 1 is elastic rod 21, and elastic rod 21 makes for beryllium-bronze
Form, elastic deformation can radially occur, elastic deformation can axially occur again.As shown in Fig. 1 to Fig. 2, cannelure 22 and screw rod 2
Half of screw 2 between afterbody is threaded rod 23, and threaded rod 23 is provided with the good triangle thread of self-locking performance 231.The end of screw rod 2
Center, portion is provided with oil outlet 4, and oil outlet 4 axially extends to head 1 along screw rod 2, and the outer wall circumference of cannelure 22 is provided with three
Equally distributed oil filler point 3, oil filler point 3 is communicated in oil outlet 4.It is provided with chamfering 41 at oil outlet 4, is used for expanding oil outlet 4 and goes out
Opening during oil, facilitates fuel-displaced.
Claims (7)
1. a hollow bolt, including head (1) and screw rod (2), described screw rod (2) bottom centre is provided with oil outlet along axis
(4), it is characterised in that: described screw rod (2) includes the cannelure (22) being arranged on described screw rod (2), is positioned at described head (1)
And elastic rod (21) between described cannelure (22), it is positioned at described screw rod (2) bottom to the spiral shell between described cannelure (22)
Rasp bar (23), is communicated with the oil filler point (3) in described oil outlet (4) in described cannelure (22).
A kind of hollow bolt the most according to claim 1, it is characterised in that: described oil filler point (3) is three and along described
Cannelure (22) outer wall even circumferential is distributed.
A kind of hollow bolt the most according to claim 2, it is characterised in that: described head (1) is near described screw rod (2)
End face is provided with the seal groove (11) for placing sealing ring.
A kind of hollow bolt the most according to claim 3, it is characterised in that: described elastic rod (21) is that beryllium-bronze makes.
A kind of hollow bolt the most according to claim 4, it is characterised in that: described threaded rod (23) outer wall is provided with triangle
Screw thread (231).
A kind of hollow bolt the most according to claim 5, it is characterised in that: described oil outlet (4) is away from described head (1)
One end be provided with chamfering (41).
A kind of hollow bolt the most according to claim 6, it is characterised in that: described screw rod (2) surface is provided with one layer of catalysis
Nickel phosphor coating (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620655721.0U CN205689553U (en) | 2016-06-23 | 2016-06-23 | A kind of hollow bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620655721.0U CN205689553U (en) | 2016-06-23 | 2016-06-23 | A kind of hollow bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205689553U true CN205689553U (en) | 2016-11-16 |
Family
ID=57425189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620655721.0U Expired - Fee Related CN205689553U (en) | 2016-06-23 | 2016-06-23 | A kind of hollow bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205689553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524368A (en) * | 2020-11-30 | 2021-03-19 | 贵州航天新力科技有限公司 | Universal expansion joint |
-
2016
- 2016-06-23 CN CN201620655721.0U patent/CN205689553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524368A (en) * | 2020-11-30 | 2021-03-19 | 贵州航天新力科技有限公司 | Universal expansion joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207261833U (en) | A kind of crossing cabin pipeline structure | |
| CN205804762U (en) | And of Varying Depth crimping edge of a wing corrugated web plate H-shaped steel | |
| CN205689553U (en) | A kind of hollow bolt | |
| CN202719294U (en) | Hard tube joint and connecting structure between hard tube joint and hard tube | |
| CN203202245U (en) | Seawater resistant butterfly valve | |
| CN202867847U (en) | Metal O-shaped sealing ring | |
| CN206513979U (en) | A kind of clutch is to master cylinder universal vehicle flexible pipe | |
| CN206981354U (en) | A kind of two-way cavitation jet formula pipe cleaning device of cage-shaped structure | |
| CN207161500U (en) | A kind of antitheft and anti-demolition diaphragm nut | |
| CN202521094U (en) | Clamping hoop | |
| CN205371241U (en) | Novel connecting rod bolt | |
| CN205118237U (en) | Antiseized even rubber ring of ditch slot type coupling | |
| CN204921973U (en) | Compound pipe liquid of bimetal basic bushing pipe clearance watertight fittings that takes shape that rises | |
| CN107191700A (en) | Oil connection | |
| CN206397891U (en) | A kind of new anti-return nut | |
| CN207515607U (en) | Tube sheet, shell-and-tube heat exchanger and air-conditioning | |
| CN202228849U (en) | Water hammer absorber | |
| CN206786185U (en) | Fastening structure in a kind of ring flange | |
| CN207171203U (en) | A kind of electrode structure in projection welder | |
| CN204677881U (en) | A kind of one-way valve with elastic sealing structure | |
| CN201772170U (en) | L-shaped rotating quick connector | |
| CN205859144U (en) | A kind of port organization of plastic inner container Wound | |
| CN204716405U (en) | Air-throttle assemble | |
| CN203549198U (en) | Large-diameter telescopic joint pressure testing device for valve pipe lower reaches | |
| CN215371439U (en) | Flat welding backing ring flange with free end having strength |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20180623 |