CN208935129U - A kind of gland bolt - Google Patents
A kind of gland bolt Download PDFInfo
- Publication number
- CN208935129U CN208935129U CN201821584569.7U CN201821584569U CN208935129U CN 208935129 U CN208935129 U CN 208935129U CN 201821584569 U CN201821584569 U CN 201821584569U CN 208935129 U CN208935129 U CN 208935129U
- Authority
- CN
- China
- Prior art keywords
- bolt
- gland
- shank
- groove
- 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
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a kind of gland bolt, and the gland bolt includes bolt shank and bolt head；Limited block is equipped between the bolt head and the bolt shank, the bolt shank includes transition part and threaded portion, and the transition part is connected by the limited block with the bolt head；The threaded portion is equipped with external screw thread, and the externally threaded cross sectional shape is right angled triangle；The bottom of the bolt shank is equipped with the lubrication groove being axially distributed along bolt shank；The surface of the gland bolt is equipped with corrosion protection phosphate coating Fe/Ct.Phr., the advantages such as gland bolt provided by the utility model has stable connection, easy to use, corrosion protection is durable.
Description
Technical field
The utility model relates to bolt technical fields, concretely relate to a kind of gland bolt.
Background technique
Bolt is one of most common fastener, it is made of head and screw rod.Screw rod is cylindrical, above has external screw thread
It can arrange in pairs or groups and use with nut.Screw bolt and nut is used in conjunction with, and can connect and fix two components for having through-hole.Bolt presses head
Shape can be divided into hexagon-headed bolt, ball screw nut, rectangular hook bolt, dormant bolt etc..
Application No. is a kind of high fender bolt is disclosed in 201610722193.0 patent application comprising bolt head,
Screw rod, screw rod are made of light bar segment, thread segment, and the end of bolt head and light bar segment is fixed, and the bottom of bolt head is also bonded with set
Set on the rubber washer of light bar segment, the bottom end face of rubber washer is disposed with several along pitch axis circumferencial direction array
Conical tooth.
In foregoing invention application, rubber washer is squeezed, and by conical tooth the frictional force of bolt and plate body is increased
Greatly, it while improving degree of protection, solves the problems, such as to slide when screw rod is connect with nut.However, above-mentioned bolt is even
It connects stability and installation convenience etc. and is still unable to satisfy existing use demand.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of stable connection, easy to use, corrosion protection is resistance to
Gland bolt.
The utility model technical scheme applied to solve the technical problem is: a kind of gland bolt, the gland bolt packet
Include bolt shank and bolt head；Limited block is equipped between the bolt head and the bolt shank, the bolt shank included
Portion and threaded portion are crossed, the transition part is connected by the limited block with the bolt head；The threaded portion is equipped with external screw thread,
The externally threaded cross sectional shape is right angled triangle；The bottom of the bolt shank is equipped with the profit being axially distributed along bolt shank
Sliding slot；The surface of the gland bolt is equipped with corrosion protection phosphate coating Fe/Ct.Phr..
Further, the externally threaded cross sectional shape is right angled triangle, the right angled triangle wherein one it is straight
The arm of angle is bolt shank；The externally threaded width of thread becomes larger along the tightening direction of the bolt.
Further, the angle between the externally threaded bottom of thread and the bolt shank is α, the angle α
It is 10~15 degree.
Further, the outer diameter of the limited block is greater than the outer diameter of the bolt head and the bolt shank.
Further, the groove depth of the lubrication groove is no more than the depth of thread of the threaded portion；The height of the lubrication groove
Greater than the height of the threaded portion.
Further, the quantity of the lubrication groove is 1~3.
Further, the joint of the limited block and the bolt shank is rounding corner structure, the half of the rounded corner
Diameter is less than 0.6cm.
Further, be equipped at the top of the bolt head and screw groove, it is described screw groove be flat recess, cross recess or
Six square groove of person.
The beneficial effects of the utility model are: compared with prior art, the gland bolt of the offer of the utility model has
Following advantage:
1) in the utility model, the setting of limited block when making bolt fix in position, has better stability；
2) in the utility model, externally threaded structure design is easily installed, and is not easy to slip after bolt locking, stability
It is good；
3) in the utility model, lubrication groove is set in threaded portion, is entered in bolt convenient for guidance lubricating oil, when thread segment is sent out
Getting rusty erosion can be by lubrication groove guiding lubricating oil entrance, to solve the problems, such as to corrode difficult extraction when can not rotate；
4) in the utility model, it is equipped with corrosion protection phosphate coating Fe/Ct.Phr. on the surface of gland bolt, increases gland spiral shell
The corrosion resistance of bolt.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of bolt provided by the utility model.
Fig. 2 is the structural schematic diagram in the face A in bolt provided by the utility model.
Fig. 3 is the structural schematic diagram in the face B in bolt provided by the utility model.
Fig. 4 is externally threaded cross section structure schematic diagram in bolt provided by the utility model.
Wherein, 1- bolt head；2- limited block；3- rounded corner；4- transition part；The threaded portion 5-；6- external screw thread；7- lubrication groove；
8- screws groove.
Specific embodiment
The utility model is further illustrated below by specific embodiment.But it is practical new that these examples are merely to illustrate this
Type rather than limitation the scope of the utility model.
Embodiment
As shown in figures 1-4, a kind of gland bolt, the gland bolt include bolt shank and bolt head 1；The bolt
Limited block 2 is equipped between first 1 and the bolt shank, the outer diameter of the limited block 2 is greater than the bolt head 1 and the shank of bolt
The outer diameter in portion.The joint of the limited block 2 and the bolt shank is 3 structure of rounded corner, and the radius of the rounded corner 3 is less than
0.6cm.The setting of limited block 2 when making bolt fix in position, has better stability.
The bolt shank includes transition part 4 and threaded portion 5, and the transition part 4 passes through the limited block 2 and the bolt
First 1 is connected；The threaded portion 5 is equipped with external screw thread 6, and the cross sectional shape of the external screw thread 6 is right angled triangle；The right angle three
An angular wherein right-angle side is bolt shank；The width of thread of the external screw thread 6 along the bolt tightening direction gradually
Become larger.Angle between the bottom of thread and the bolt shank of the external screw thread 6 is α, and the angle α is 11 degree.External screw thread 6
Structure design, be easily installed, and bolt locking after be not easy to slip, stability is good.
The bottom of the bolt shank is equipped with the lubrication groove 7 being axially distributed along bolt shank；In threaded portion 5, lubrication groove is set
7, enter in bolt convenient for guidance lubricating oil, when thread segment corrodes, and can not rotate, can be oriented to and be lubricated by lubrication groove 7
Oil enters, to solve the problems, such as to corrode difficult extraction.The groove depth of the lubrication groove 7 is no more than the depth of thread of the threaded portion 5,
It is flowed convenient for lubricating oil along thread pitch；The height of the lubrication groove 7 is greater than the height of the threaded portion 5, when lubrication, guarantees
Lubricating oil can be covered with entire threaded portion 5.The quantity of the lubrication groove 7 is 3.
The surface of the gland bolt is equipped with corrosion protection phosphate coating Fe/Ct.Phr., increases the corrosion resistance of gland bolt.
It is equipped at the top of the bolt head 1 and screws groove 8, the groove 8 that screws is flat recess, cross recess or six sides
Slot.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain, in the case where not departing from the spirit and scope of the utility model, can also make a variety of changes and
Modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the scope of patent protection of the utility model is answered
It is defined by the claims.
Claims (8)
1. a kind of gland bolt, the gland bolt includes bolt shank and bolt head；It is characterized by: the bolt head and institute
It states and is equipped with limited block between bolt shank, the bolt shank includes transition part and threaded portion, and the transition part passes through the limit
Position block is connected with the bolt head；The threaded portion is equipped with external screw thread, and the externally threaded cross sectional shape is right angled triangle；
The bottom of the bolt shank is equipped with the lubrication groove being axially distributed along bolt shank；The surface of the gland bolt is equipped with corrosion protection phosphorus
Change layer Fe/Ct.Phr..
2. a kind of gland bolt as described in claim 1, it is characterised in that: a wherein right-angle side for the right angled triangle
For bolt shank；The externally threaded width of thread becomes larger along the tightening direction of the bolt.
3. a kind of gland bolt as claimed in claim 2, it is characterised in that: the externally threaded bottom of thread and the bolt
Angle between bar portion is α, and the angle α is 10~15 degree.
4. a kind of gland bolt as described in claim 1, it is characterised in that: the outer diameter of the limited block is greater than the bolt head
With the outer diameter of the bolt shank.
5. a kind of gland bolt as described in claim 1, it is characterised in that: the groove depth of the lubrication groove is no more than the screw thread
The depth of thread in portion；The height of the lubrication groove is greater than the height of the threaded portion.
6. a kind of gland bolt as claimed in claim 1 or 5, it is characterised in that: the quantity of the lubrication groove is 1~3.
7. a kind of gland bolt as described in claim 1, it is characterised in that: the limited block connects with the bolt shank
Place is rounding corner structure, and the radius of the rounded corner is less than 0.6cm.
8. a kind of gland bolt as described in claim 1, it is characterised in that: it is equipped at the top of the bolt head and screws groove,
The groove that screws is flat recess, cross recess or six square grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821584569.7U CN208935129U (en) | 2018-09-28 | 2018-09-28 | A kind of gland bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821584569.7U CN208935129U (en) | 2018-09-28 | 2018-09-28 | A kind of gland bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208935129U true CN208935129U (en) | 2019-06-04 |
Family
ID=66722734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821584569.7U Expired - Fee Related CN208935129U (en) | 2018-09-28 | 2018-09-28 | A kind of gland bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208935129U (en) |
-
2018
- 2018-09-28 CN CN201821584569.7U patent/CN208935129U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 Termination date: 20200928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |