CN208311223U - A kind of Split type bolt - Google Patents
A kind of Split type bolt Download PDFInfo
- Publication number
- CN208311223U CN208311223U CN201820904927.1U CN201820904927U CN208311223U CN 208311223 U CN208311223 U CN 208311223U CN 201820904927 U CN201820904927 U CN 201820904927U CN 208311223 U CN208311223 U CN 208311223U
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- Prior art keywords
- bolt
- stud
- head
- locking
- split type
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Abstract
The utility model provides a kind of Split type bolt comprising: bolt head；Bolt sleeve, one end are connect with bolt head, and bolt sleeve has internal screw thread；Stud, one end can protrude into bolt sleeve, and be threadedly coupled with bolt sleeve, have inside stud along axially through perforation；Locking post can axially slidably be arranged in perforation, and locking post is circumferentially fixed with stud, and one end of locking post is can be by sliding and bolt head grafting and circumferentially positioned with the locking head of bolt head grafting, locking post；Compressing member, set on the other end of stud, and can be by compressing the other end of locking post for locking post axially position.The utility model solves the problems, such as that bolt can not be replaced because bolt head is landfilled, and solves the problems, such as to be bolted strength and stiffness reduction caused by because of corrosion, while also can solve the problem of bolt loosens in use.
Description
Technical field
The utility model relates to a kind of connectors, especially a kind of to facilitate the unilateral Split type bolt replaced.
Background technique
Underground steel piping lane is to be spliced by multiple ripple steel tunnel segments by connecting bolt, and the main body service life is 100
Year.Since underground environment is severe, because of reasons such as moist, corrosion, need periodically to protect bolt within phase projected life, more
It changes.
But underground steel piping lane belongs to drum ladle, and directly engineering backfill on the outside of piping lane, leads to the hidden landfill of bolt head
In soil layer, so, during underground steel piping lane O&M, connection bolt can not be replaced.
Utility model content
The purpose of the utility model is to provide a kind of Split type bolts, to solve that spiral shell can not be replaced because bolt head is landfilled
The problem of bolt.
In order to achieve the above objectives, the utility model proposes a kind of Split type bolts comprising: bolt head；Bolt sleeve, one
End is connect with the bolt head, and the bolt sleeve has internal screw thread；Stud, one end can protrude into the bolt sleeve, and with institute
State bolt sleeve threaded connection, have inside the stud along axially through perforation；Locking post can axially slidably be arranged in institute
Perforation is stated, the locking post and the stud are circumferentially fixed, and one end of the locking post is can be with the lock of the bolt head grafting
Tight head, the locking post can pass through sliding and the bolt head grafting and circumferentially positioned；Compressing member, set on the another of the stud
End, and can be by the other end of the compression locking post by the locking post axially position.
Split type bolt as described above, wherein be connected by key between the locking post and the stud it is circumferentially fixed,
One key of connection is axially fixed on the inner sidewall of the stud, the lateral wall of the locking post is equipped with a keyway, the keyway
Length be greater than the key length, the locking post can slide along the key.
Split type bolt as described above, wherein the end of the bolt head is equipped with anti-rotation boss, the end of the locking head
Portion is equipped with the anti-rotation groove matched with the anti-rotation boss, and the anti-rotation boss can be embedded in the anti-rotation groove.
Split type bolt as described above, wherein the lateral wall of the stud, which is equipped with, to be stopped screwing in mark, is stopped described
Spin-ended inlet identity is aligned in the state of the other end face of the bolt sleeve, and the anti-rotation boss is directed at the anti-rotation groove.
Split type bolt as described above, wherein the compressing member is to compress piece, described one end for compressing piece and the spiral shell
The end face of column connects, and the other end for compressing piece is by being close to the end face of the locking post other end for the locking post pressure
Tightly.
Split type bolt as described above, wherein the locking head stretches out outside the stud, one end of the bolt sleeve
Internal diameter is greater than the diameter of the locking head, is formed inside one end of the bolt sleeve and slides sky in axial sliding for the locking head
Between.
Split type bolt as described above, wherein the diameter of the locking head is equal to the outer diameter of the stud, the locking
Head has external screw thread, and the locking head can dock to form continuous external screw thread with the stud.
Split type bolt as described above, wherein the diameter of the locking head is less than the outer diameter of the stud.
Split type bolt as described above, wherein one end of the stud have dextrorotation external screw thread, the bolt sleeve it is interior
Screw thread is dextrorotation internal screw thread；The other end of the stud also has sinistral external thread.
Split type bolt as described above, wherein the bolt head and the bolt sleeve are made of resistant material.
The characteristics of Split type bolt of the utility model and advantage are:
1, the Split type bolt of the utility model is that split type structure will be located at big planar portions when needing replacing bolt
Part or the fastening nut of closed container side, compressing member, stud and locking post are removed and are replaced, without dismantle it is hidden or landfill in
Big flat components or the bolt head of the closed container other side, so that bolt can be completed in big flat components or closed container unilateral side
Disassembly and replacement operation, solve the problems, such as that bolt can not be replaced because bolt head is landfilled, by replace bolt solve because
Corrosion causes to be bolted the problem of strength and stiffness reduce, and extends bolt service life；In addition, since Split type bolt has
Bolt sleeve, stud and the locking post of limitation positioning mutually, moreover it is possible to solve the problems, such as that bolt loosens in use；
2, the Split type bolt of the utility model is arranged the external screw thread of different rotation directions at stud both ends, can further prevent
Bolt loosens in use；
3, the Split type bolt of the utility model, it is not only convenient for disassembly and assembly, but also can realize that different components select different materials,
Reduce cost.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is that the Split type bolt of the utility model is in the schematic diagram of locking post unlocked state；
Fig. 2 is that the Split type bolt of the utility model is in the schematic diagram of locking post lock state；
Fig. 3 is the main view of bolt head in the utility model；
Fig. 4 is the top view of bolt head in Fig. 3.
Main element label declaration:
1, bolt head；11, anti-rotation boss；2, bolt sleeve；3, stud；4, locking post；41, locking head；42, anti-rotation groove；
5, compressing member；6, key；7, sliding space；8, washer；9, fastening nut；10, handpiece；100, the first connected piece；200,
Two connected pieces.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
Specific embodiment of the present utility model.
As shown in Figure 1, the utility model provides a kind of Split type bolt, for connecting the first connected piece 100 and second
Connected piece 200, such as the first connected piece 100 and the second connected piece 200 are the ripple steel tunnel segment of underground steel piping lane,
Split type bolt includes bolt head 1, bolt sleeve 2, stud 3, locking post 4 and compressing member 5；
Bolt sleeve 2 is in sleeve-shaped, and one end of bolt sleeve 2 is connect with bolt head 1, preferably, bolt sleeve 2 and bolt head 1 are same
Axis connection, bolt sleeve 2 have internal screw thread；
One end of stud 3 can be protruded into bolt sleeve 2, and be threadedly coupled with bolt sleeve 2, have inside stud 3 and pass through along axial direction
Logical perforation, preferably, the perforation is the central through hole of stud 3；
Locking post 4 can axially slidably be arranged in perforation, and locking post 4 and stud 3 are circumferentially fixed, i.e. locking post 4 and stud 3
Relatively unrotatable, one end of locking post 4 is that can pass through sliding and bolt with the locking head 41 of 1 grafting of bolt head, locking post 4
First 1 grafting is simultaneously circumferentially positioned, i.e., in the state of locking head 41 and 1 grafting of bolt head, locking post 4 and bolt head 1 cannot be opposite
Rotation；
Compressing member 5 is set to the other end of stud 3, and can be axial fixed by locking post 4 by compressing the other end of locking post 4
Position.
When installing Split type bolt, first bolt sleeve 2 is protruded into the bolt hole of connected piece, 1 contact of bolt head is in quilt
On the outside of connector；Then stud 3 is screwed in into appropriate depth in bolt sleeve 2 together with locking post 4；Later towards 1 slide-and-lock of bolt head
Column 4 makes locking head 41 and 1 grafting of bolt head of locking post 4, and the circumferential position of locking post 4 is fixed at this time, and locking post 4 cannot phase
Bolt head 1 is rotated, stud 3 can not also be rotated relative to bolt head 1 again；The another of locking post 4 is then pushed down using compressing member 5
End, the axial position of locking post 4 is fixed at this time, and locking post 4 cannot slide axially with respect to stud 3 again；Finally in the another of stud 3
End screws in fastening nut 9, so far completes the installation of Split type bolt；Since the circumferential position and axial position of locking post 4 are solid
It is fixed, and limitation positioning mutually between locking post 4 and stud 3, effectively bolt can be avoided to loosen in use.
When needing replacing bolt, disassembling section is opposite with above-mentioned installation operation.
The Split type bolt of the utility model is particularly suitable for big flat components connection (such as corrugated steel of underground steel piping lane
Tubulation piece) or the connection of closed container will be located at the fastening of big flat components or closed container side when needing replacing bolt
Nut 9, compressing member 5, stud 3 and locking post 4 are removed and are replaced, without dismantling hidden or landfill in big flat components or closed appearance
The bolt head 1 of the device other side solves so that Bolt dismantling and replacement operation can be completed in big flat components or closed container unilateral side
The problem of strength and stiffness reduce is bolted caused by having determined because of corrosion.
Again as shown in Figure 1, in a specific embodiment, be connected by key between locking post 4 and stud 3 it is circumferentially fixed,
Such as, but not limited to flat key, spline connection.
Further, one key 6 of connection is axially fixed on the inner sidewall of stud 3, edge is axially arranged on the lateral wall of locking post 4
One keyway, the length of keyway is greater than the length of key 6, so that locking post 4 can slide axially along key 6.
But the utility model is not limited to this, can also be circumferentially fixed by pin connection between locking post 4 and stud 3, example
Such as, a radially secure pin on the inner sidewall of stud 3, opens up a sliding slot along axial direction on the lateral wall of locking post 4, sells
It protrudes into sliding slot, under the position-limiting action of pin, locking post 4 can only slide axially, and cannot circumferentially rotate.
It is of course also possible to open up a sliding slot, the edge on the lateral wall of locking post 4 along axial direction on the inner sidewall of stud 3
A radially fixed pin.
As shown in Figure 2, Figure 3, Figure 4, in another specific embodiment, the end of bolt head 1 is equipped with anti-rotation boss 11, lock
The end of tight head 41 is equipped with the anti-rotation groove 42 matched with anti-rotation boss 11, and anti-rotation boss 11 can be embedded in anti-rotation groove 42.
Further, anti-rotation boss 11 is wedge-shaped boss, sheet boss or zigzag boss, and accordingly, anti-rotation groove 42 is
Wedge-shaped impression, rectangular channel or incised groove.
But the utility model is not limited to this, and anti-rotation groove can also be arranged in the end of bolt head 1, in locking head 41
The anti-rotation boss matched with the anti-rotation groove is arranged in end.
In the embodiment shown in fig. 1, compressing member 5 is to compress piece, and the one end for compressing piece is connect with the end face of stud 3,
The other end for compressing piece is compressed locking post 4 by being close to the end face of 4 other end of locking post.Such as compressing the quantity of piece is two
A, two compression pieces are symmetrically welded on the end face of stud 3, compress piece be preferably steel disc, compress piece shape can be it is rectangular
Shape, square or ellipse.
Further, it is connected with handpiece 10 on the end face of 4 other end of locking post, when operation, holds handpiece 10 and slide
Or rotation lock column 4, operation is very easy, such as handpiece 10 is thin plate, offers opening on handpiece 10, stretches convenient for finger
Enter and locking post 4 is pushed or lifted in opening.
As shown in Figure 1 and Figure 2, in a preferred embodiment, locking head 41 stretch out stud 3 outside, bolt sleeve 2 it is close
The internal diameter of one end of bolt head 1 is greater than the diameter of locking head 41, to be formed for locking head 41 in axial sliding inside bolt sleeve 2
Sliding space 7.When installation, stud 3 is screwed in into 2 appropriate depth of bolt sleeve, so that the anti-rotation groove 42 of locking head 41 is directed at bolt
First 1 anti-rotation boss 11, then locking post 4 is pushed towards bolt head 1, slide locking head 41 in sliding space 7, until locking head
41 with 1 grafting of bolt head.
Further, it is the screw-in depth convenient for judging stud 3, is equipped on the lateral wall of stud 3 and stops screwing in mark, it should
Stop screwing in the distance between mark and the end face of one end (i.e. one end of stud 3 protruded into bolt sleeve 2) of stud 3 being to need
The screw-in depth wanted, in the other end (i.e. one end of the separate bolt head 1 of bolt sleeve 2) for stopping screwing in mark alignment bolt sleeve 2
In the state of end face, anti-rotation boss 11 is directed at anti-rotation groove 42 can be by locking head 41 at this time towards 1 slide-and-lock column 4 of bolt head
With 1 grafting of bolt head.
As shown in Figure 1 and Figure 2, in a feasible technical solution, the diameter of locking head 41 is equal to the outer diameter of stud 3, lock
Tight head 41 has external screw thread, and locking head 41 can dock to form continuous external screw thread with stud 3, that is, locking head 41 is close right with stud 3
It connects, the external screw thread of locking head 41 connect to form continuous external screw thread with the external screw thread of stud 3.Using this scheme, locking post 4 and stud
3 screw in bolt sleeve 2 simultaneously, until locking head 41 enters in sliding space 7.
In another feasible technical solution, the diameter of locking head 41 is less than the outer diameter of stud 3, using this scheme, nothing
External screw thread need to be set on the outer wall of locking head 41, since locking post 4 and stud 3 are circumferentially fixed, locking post 4 can be in stud 3
Lower screw-in bolt sleeve 2 is driven, after stud 3 is screwed in 2 appropriate depth of bolt sleeve, slide-and-lock column 4 makes locking head 41 and bolt
First 1 grafting.In this scheme, the diameter of locking head 41 more preferably greater than stud 3 internal diameter so that the locking heads 41 of 3 pairs of stud slidings
Limit.
In another preferred embodiment, one end of stud 3 has dextrorotation external screw thread, accordingly, the interior spiral shell of bolt sleeve 2
Line is dextrorotation internal screw thread；The other end of stud 3 also has sinistral external thread, in use, the other end in stud 3 is inserted in washer 8,
Fastening nut 9 is screwed in again.
In the present embodiment, by the way that dextrorotation external screw thread and sinistral external thread is respectively set at the both ends of stud 3, make 3 liang of stud
The thread rotary orientation of section is different, bolt can be further prevented to loosen in use.
The bolt of the utility model is Split type bolt, therefore unlike material can be used in each component of bolt.Due to bolt
First 1 and bolt sleeve 2 be non-exchange part, it is desirable that long service life, therefore bolt head 1 and bolt sleeve 2 are made of resistant material,
Such as stainless steel or other existing corrosion-resistant steels；Stud 3 and locking head 41 are Replacement Parts, therefore 8.8 grade bolts may be selected
Material；Key 6 belongs to connector, can be calculated according to by shearing, and 45# steel or other materials are selected；Washer 8 and fastening nut 9
Common state's tender, such as 65Mn washer, 8 grades of nuts may be selected.It should be noted that conventional plain bolt nut connection was selected
It is 8.8 grade bolts and 8 grades of nuts.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent variations under the premise of not departing from the conceptions and principles of the utility model
With modification, the range of the utility model protection should belong to.And it should be noted that each component part of the utility model simultaneously
It is not limited only to above-mentioned overall applicability, each technical characteristic described in the specification of the utility model can select according to actual needs
One individually uses or selects the multinomial use that combines, and therefore, the utility model covers in the nature of things to be invented with this case
The related other combinations of point and concrete application.
Claims (10)
1. a kind of Split type bolt, which is characterized in that the Split type bolt includes:
Bolt head；
Bolt sleeve, one end are connect with the bolt head, and the bolt sleeve has internal screw thread；
Stud, one end can protrude into the bolt sleeve, and be threadedly coupled with the bolt sleeve, have inside the stud along axis
To the perforation of perforation；
Locking post can axially slidably be arranged in the perforation, and the locking post and the stud are circumferentially fixed, the locking post
One end be that can pass through sliding and the bolt head grafting and circumferential with the locking head of the bolt head grafting, the locking post
Positioning；
Compressing member, set on the other end of the stud, and can be by compressing the other end of the locking post for the locking axis of a cylinder
To positioning.
2. Split type bolt as described in claim 1, which is characterized in that connected between the locking post and the stud by key
It connects circumferentially fixed, one key of connection is axially fixed on the inner sidewall of the stud, the lateral wall of the locking post is equipped with a key
The length of slot, the keyway is greater than the key length, and the locking post can be slided along the key.
3. Split type bolt as described in claim 1, which is characterized in that the end of the bolt head is equipped with anti-rotation boss, institute
The end for stating locking head is equipped with the anti-rotation groove matched with the anti-rotation boss, and it is recessed that the anti-rotation boss can be embedded in the anti-rotation
In slot.
4. Split type bolt as claimed in claim 3, which is characterized in that the lateral wall of the stud, which is equipped with, to be stopped screwing in mark
Know, in the state of the other end face for stopping the screw-in mark alignment bolt sleeve, described in the anti-rotation boss alignment
Anti-rotation groove.
5. Split type bolt as described in claim 1, which is characterized in that the compressing member is to compress piece, the compression piece
One end is connect with the end face of the stud, and the other end for compressing piece is by being close to the end face of the locking post other end for institute
State locking post compression.
6. such as Split type bolt described in any one of claim 1 to 5, which is characterized in that the locking head stretches out the stud
Outside, the internal diameter of one end of the bolt sleeve is greater than the diameter of the locking head, is formed described in supplying inside one end of the bolt sleeve
Locking head sliding space in axial sliding.
7. Split type bolt as claimed in claim 6, which is characterized in that the diameter of the locking head is equal to the outer of the stud
Diameter, the locking head have external screw thread, and the locking head can dock to form continuous external screw thread with the stud.
8. Split type bolt as claimed in claim 6, which is characterized in that the diameter of the locking head is less than the outer of the stud
Diameter.
9. such as Split type bolt described in any one of claim 1 to 5, which is characterized in that one end of the stud has dextrorotation
External screw thread, the internal screw thread of the bolt sleeve are dextrorotation internal screw thread；The other end of the stud also has sinistral external thread.
10. such as Split type bolt described in any one of claim 1 to 5, which is characterized in that the bolt head and the bolt sleeve
It is made of resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820904927.1U CN208311223U (en) | 2018-06-12 | 2018-06-12 | A kind of Split type bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820904927.1U CN208311223U (en) | 2018-06-12 | 2018-06-12 | A kind of Split type bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208311223U true CN208311223U (en) | 2019-01-01 |
Family
ID=64707181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820904927.1U Active CN208311223U (en) | 2018-06-12 | 2018-06-12 | A kind of Split type bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208311223U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691870A (en) * | 2018-06-12 | 2018-10-23 | 中冶京诚工程技术有限公司 | A kind of Split type bolt |
| CN111022462A (en) * | 2019-11-29 | 2020-04-17 | 哈尔滨盛洋塑胶材料有限公司 | Spacing split type connecting key |
-
2018
- 2018-06-12 CN CN201820904927.1U patent/CN208311223U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691870A (en) * | 2018-06-12 | 2018-10-23 | 中冶京诚工程技术有限公司 | A kind of Split type bolt |
| CN108691870B (en) * | 2018-06-12 | 2024-02-06 | 中冶京诚工程技术有限公司 | Split bolt |
| CN111022462A (en) * | 2019-11-29 | 2020-04-17 | 哈尔滨盛洋塑胶材料有限公司 | Spacing split type connecting key |
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