CN208595130U - Double base expanding and base expanding anchor bolts - Google Patents
Double base expanding and base expanding anchor bolts Download PDFInfo
- Publication number
- CN208595130U CN208595130U CN201820549356.4U CN201820549356U CN208595130U CN 208595130 U CN208595130 U CN 208595130U CN 201820549356 U CN201820549356 U CN 201820549356U CN 208595130 U CN208595130 U CN 208595130U
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- China
- Prior art keywords
- base expanding
- outer sleeve
- inner sleeve
- sleeve
- long axis
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- 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.)
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Abstract
A kind of double base expanding and base expanding anchor bolts, including long axis, inner sleeve and outer sleeve, wherein long axis bottom, which is equipped with, squeezes the conical surface, and inner sleeve tubular in a ring covers on the outside of long axis, and outer sleeve tubular in a ring covers on the outside of inner sleeve；When installing anchor bolt, rotating nuts pre-tighten it, the long axis stress displacement, the crush cones apply pressure in face of the inner sleeve, inner sleeve stress is opened, and is applied pressure to the outer sleeve and is made its opening, increases the frictional force of anchor bolt Yu concrete sill by increasing stressed mode.The utility model is realized the effect of double base expanding and base expandings by double sleeves, can bear high load on the basis of original single sleeve, can be used for absorbing impact and seismic (seismal, and ensure that power in concrete has effect spread.
Description
Technical field
The utility model relates to a kind of building fastening hardware technology field more particularly to a kind of double base expanding and base expanding anchor bolts.
Background technique
With the continuous development of China's modernization, the railway in China and subway construction also enter high speed development
Phase, the scale of investment of the railway in China and subway construction project is increasing now, and structure also becomes increasingly complex, to arrangement and method for construction
Requirement be also continuously improved；Therefore, scientific and reasonable technical solution not only may insure engineering safety, completion of guaranteeing the quality on schedule, and
And the economic benefit of enterprise can also be improved；Then in the construction process, it usually can all use and arrive anchor bolt.Anchor bolt can it is simple,
Efficiently and reliably for brick body, masonry, stone material, in concrete substrate,
China Patent Publication No. CN205244060U discloses a kind of novel base expanding and base expanding anchor bolt, and one end of the screw rod is heavy
Head end, screw jacket are connected to a high-intensitive thickening casing, and high intensity thickeies casing and is equipped at the outer wall of the one end at countersunk head end
The one anti-skidding annular knurl of circle, anti-skidding annular knurl are equipped with a circle and expand bending groove, enclose the high-intensitive of anti-skidding annular knurl both ends and thicken outside casing
A circle antiskid groove is respectively provided at wall, product cooperates corresponding base expanding and base expanding drill to use；Product, which uses, has thickeied expansion sleeve, and
And the anti-skidding annular knurl of multiple tracks and antiskid groove are provided on expansion sleeve outer wall, and provided with multiple anti-on expansion sleeve tube wall
The concave point product surface that falls off adds baking finish process to handle using hot galvanizing；It can be seen that although the utility model can be improved anchor
The stability of bolt, but its bearing capacity can not further increase, unbearable impact and seismic (seismal.
Utility model content
For this purpose, the utility model provides a kind of double base expanding and base expanding anchor bolts, to overcome in the prior art, anchor bolt bearing capacity it is weak and
The technical issues of unbearable impact and seismic (seismal.
To achieve the above object, the utility model provides a kind of double base expanding and base expanding anchor bolts, comprising: screwed long axis, inner sleeve
Cylinder and outer sleeve；Wherein, inner sleeve tubular in a ring, covers on the outside of the long axis, and outer sleeve equally tubular in a ring is covered in institute
It states on the outside of inner sleeve；When installing the anchor bolt, long axis stress generates displacement so that the inner sleeve stress is opened, with outer sleeve
It comes into full contact with, outer sleeve stress is opened, and is come into full contact with concrete sill, by increasing anchor bolt to the pressure increase anchor of concrete sill
The frictional force of bolt and concrete sill.
Further, inner sleeve tubular, and the limb including at least two force-applied deformations in a ring.
Further, through slot is offered between two adjacent limbs of the inner sleeve, to make each limb point
It is not flared out.
Further, the outer sleeve is to be shorter in length than inner sleeve, and diameter is greater than the annular canister of inner sleeve comprising at least
The limb of two force-applied deformations.
Further, through slot is offered between two adjacent limbs of the outer sleeve, to make each limb point
It is not flared out.
Further, told outer sleeve further includes being arranged on the outer wall, to prevent between outer sleeve and the inner sleeve
Sliding.
Further, the outer sleeve limb outer wall is equipped with anti-skidding annular knurl, to increase between outer sleeve and concrete sill
Frictional force.
Further, the conical surface that squeezes is set to the bottom of the long axis and is integrally formed with long axis, the crush cones
The maximum gauge in face is arranged in outermost end.
Compared with prior art, the beneficial effects of the utility model are on the basis of original single sleeve, by double
Sleeve realizes the effect of double base expanding and base expandings, installs anchor bolt more secured, is able to bear high load, can be used for absorbing impact
And seismic (seismal.
Further, the inner sleeve sets the limb there are two force-applied deformation, described interior when pre-tightening to anchor bolt
Sleeve limb meeting stress is opened, and is come into full contact with the inner wall of outer sleeve and is applied pressure to it, increases inner sleeve and housing with this
Frictional force between cylinder, improves the stability of anchor bolt.
Further, the outer sleeve is again provided with the limb of two force-applied deformations, when inner sleeve stress is opened externally
When sleeve applies pressure, outer sleeve limb stress is opened, and is come into full contact with concrete sill and is applied pressure to it, so as to improve outer
Frictional force between sleeve and concrete sill improves the bearing capacity of anchor bolt.
Especially, the housing drum outer wall is equipped with anti-dropout concave point outer sleeve, to prevent outer sleeve and the inner sleeve
Sliding between cylinder, further improves the stability of the anchor bolt.
Further, the outer sleeve limb outer wall is equipped with annular knurl, and when outer wall and concrete sill contact, annular knurl can be with
The frictional force between outer sleeve and concrete sill is improved by way of increasing surface roughness, further improves the steady of anchor bolt
It is qualitative.
Further, the length of the outer sleeve is less than inner sleeve, in this way, opening limb in outer sleeve stress, causes outer
When sleeve is subjected to displacement, outer sleeve main body forms easily-deformable hollow structure, further improves without departing from inner sleeve main body
The stability of anchor bolt.
Further, the long axis bottom, which is equipped with, squeezes the conical surface, when pre-tightening to anchor bolt, described in the drive of long axis stress
Conical surface displacement is squeezed, the conical surface is squeezed and is come into full contact with inner sleeve, and applying pressure to inner sleeve opens the limb of inner sleeve, it is interior
Sleeve limb comes into full contact with while opening with outer sleeve inner wall, and to outer sleeve apply pressure make its opening and with concrete substrate
Material comes into full contact with, and increases the bearing capacity of anchor bolt with this.
Detailed description of the invention
Fig. 1 is the first structure diagram of the double base expanding and base expanding anchor bolts of the utility model；
Fig. 2 is the second structural schematic diagram of the double base expanding and base expanding anchor bolts of version utility model.
Specific embodiment
Below in conjunction with attached drawing, the above and other technical features and advantages of the present invention are described in more detail.
Preferred embodiments of the present invention are described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these embodiments are used only for explaining the technical principle of the utility model, not in the protection model of limitation the utility model
It encloses.
It should be noted that term " on ", "lower", "left", "right", "inner", "outside" etc. in the description of the present invention,
The direction of instruction or the term of positional relationship are direction based on the figure or positional relationship, this, which is intended merely to facilitate, retouches
It states, rather than indication or suggestion described device or element must have a particular orientation, be constructed and operated in a specific orientation, because
This should not be understood as limiting the present invention.
In addition it is also necessary to explanation, in the description of the present invention, unless otherwise clearly defined and limited, art
Language " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.To those skilled in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
It please refers to shown in Fig. 1 and 2, is the first structure diagram and second of the double base expanding and base expanding anchor bolts of the utility model embodiment
Structural schematic diagram, double base expanding and base expanding anchor bolts include: long axis 1, inner sleeve 2, outer sleeve 3, washer 4 and nut 5 in the present embodiment, wherein
The outside of long axis 1 is arranged in inner sleeve 2, and the outside of inner sleeve 2 is arranged in outer sleeve 3；It, first will be equipped with interior when installing anchor bolt
The long axis 1 of sleeve 2 and outer sleeve 3 is put into hole, is pre-tightened with nut 5 to the long axis 1, long during preload
The meeting of axis 1 stress is subjected to displacement, and 2 stress of inner sleeve is opened, and is contacted with outer sleeve 3, is applied while increasing frictional force to outer sleeve 3
Plus-pressure make 3 stress of outer sleeve open and with concrete sill joint, increase the frictional force between outer sleeve 3 and concrete sill, make
The load that anchor bolt is able to bear reaches maximum；It will be appreciated by those skilled in the art that the anchor bolt cannot be only used for anchor
Gu part can be used for anchor connector, the part for being connected connector by anchor connector is fixed on specified
Position, this embodiment is not specifically limited, as long as meeting the anchor bolt is able to bear the load brought by anchoring piece.
Please continue to refer to shown in Fig. 1 and 2, long axis 1 described in double base expanding and base expanding anchor bolts includes long shaft body 11 and squeezes in the present embodiment
The conical surface 12 is pressed, described two parts are integrally formed；It will be appreciated by those skilled in the art that the material of the long axis 1
Material can be copper, zinc, carbon steel, stainless steel or other kinds of metal or alloy, expect as long as meeting the long axis 1 and being able to bear
Load.
Specifically, the long shaft body 11 is equipped with external screw thread, to be bolted with nut 5；In installation anchor
When bolt, nut 5 is screwed in long shaft body, it is pre-tightened, so that long shaft body is generated displacement by pretightning force, with this
The extruding conical surface 12 is driven to be displaced；It is understood that the material of the long axis 1 can be copper, zinc, carbon steel, stainless steel or
Other kinds of metal or alloy, as long as meeting the long axis 1 is able to bear estimated load.
Specifically, the extruding conical surface 12 is in a circular table shape, wherein squeeze the smaller diameter end and long shaft body 11 of the conical surface 12
It is connected and smaller diameter end diameter is identical as long 11 diameter of shaft body, the extruding conical surface 12 is arranged at long 11 bottom of shaft body
Portion, to apply pressure to inner sleeve 2 and make its opening；When being pre-tightened to anchor bolt, squeezes 12 stress of the conical surface and is displaced,
It is come into full contact with inner sleeve 2 and pressure is applied to it, open inner sleeve stress；Certainly, the present embodiment is to the extruding conical surface 12
Tilt angle with no restrictions, as long as 2 stress of inner sleeve can be made to open after meeting 12 stress of extruding conical surface displacement.
Please continue to refer to shown in Fig. 1 and 2, the long axis 1 is arranged in inner sleeve 2 described in double base expanding and base expanding anchor bolts in the present embodiment
Outside, including inner sleeve main body 21 and inner sleeve limb 22；When being pre-tightened to anchor bolt, 12 stress of the extruding conical surface displacement
It is come into full contact with the inner sleeve limb 22, and pressure is applied to inner sleeve limb 22, open it and is connect with 3 inner wall of outer sleeve
Touching applies pressure to 3 inner wall of outer sleeve, increases the frictional force between the two with this, in this way while promoting anchor bolt bearing capacity,
Improve the stability of anchor bolt；It is understood that the material of the inner sleeve 2 can be copper, zinc, carbon steel, stainless steel or its
The metal or alloy of his type, if the inner sleeve 2 can stress opening contacted with 3 inner wall of outer sleeve.
Please continue to refer to shown in Fig. 1 and 2, in the present embodiment outer sleeve 3 described in double base expanding and base expanding anchor bolts include outer sleeve main body 31,
Outer sleeve limb 32, anti-dropout concave point 33 and anti-skidding annular knurl 34；Wherein, outer sleeve main body 31 is integrated with outer sleeve limb 32
Connection, anti-dropout concave point 33 are set on 31 outer wall of outer sleeve main body, and anti-skidding annular knurl 34 is set to the outer wall of outer sleeve limb 32
On；When pre-tightening to anchor bolt, 22 stress of inner sleeve limb is opened, and is come into full contact with 3 inner wall of outer sleeve, and apply to it
Pressure, 3 stress of outer sleeve are opened, come into full contact with concrete sill, increase the frictional force between anchor bolt and concrete sill, increased with this
Add the bearing capacity of anchor bolt；It is understood that the material of the outer sleeve 3 can be copper, zinc, carbon steel, stainless steel or other
The metal or alloy of type, if the outer sleeve 3 can stress opening contacted with concrete sill.
Specifically, the outside of inner sleeve 2 is arranged in the outer sleeve main body 31, the wherein internal diameter and inner sleeve of outer sleeve 31
The outer diameter of cylinder 2 is identical, in this way, what the outer sleeve 3 can be stable covers in 2 outside of inner sleeve, 31 length of outer sleeve main body
Less than 2 length of inner sleeve main body, in this way, outer sleeve main body 31 is not above inner sleeve master when 3 stress of outer sleeve generates displacement
Body 21 will not form unstable hollow structure, above inner sleeve 2 so as to improve the stability of anchor bolt.
Specifically, the outer sleeve limb 32 is arranged below outer sleeve body 31 and is one with outer sleeve main body 31
Body connection；Inner sleeve 2 to the outer sleeve limb 32 apply pressure when, 32 stress of outer sleeve limb open, and with concrete substrate
Material comes into full contact with, and increases the frictional force between outer sleeve limb 32 and concrete sill with this, improves the bearing capacity of anchor bolt.
Specifically, the anti-dropout concave point 33 is set on 31 outer wall of outer sleeve main body, to prevent outer sleeve 3 with it is interior
It is produced relative sliding between sleeve 2；It is understood that specific location the present embodiment locating for the anti-dropout concave point 33 is not
Concrete restriction is done, is located in outer sleeve main body 31 as long as meeting the side concave point 33 that falls off and outer sleeve 3 and inner sleeve can be prevented
It is produced relative sliding between cylinder 2.
Specifically, the anti-skidding annular knurl 34 is arranged on 32 outer wall of outer sleeve limb, in the outer sleeve
The mechanical technology of 32 outer wall of limb rolling decorative pattern；It when 32 stress of outer sleeve limb is opened, can come into full contact with, prevent with concrete sill
Sliding annular knurl 34 can further increase the friction of the outer sleeve 3 and concrete sill by way of the degree of roughness of increase contact surface
Power, so as to improve the bearing capacity of anchor bolt；It is understood that the anti-skidding annular knurl 34 can be reticulate pattern, straight grain or other kinds
The shape of class, as long as meeting the frictional force that can increase between outer sleeve and concrete sill.
The utility model application method is as follows:
The specifications and models of anchor bolt are selected first, the specifications and models after the completion of selection according to the anchor bolt are in base course wall
In drill, the diameter and hole depth in drilled hole should be determined before drilling.
After the completion of drilling, second reaming is carried out using reaming bit, and drill bit is scalable primary, it can fixed length.
Reaming completion aperture after hole is dried and dedusting, can carry out borehole cleaning using manual pump or air driven pump, but must
It must guarantee the cleaning in hole, cannot there is dust.
After the hole cleaning is completed, anchor bolt is installed to hole, in a pre-installation first tightens each establishment.Guarantee without pine
It is dynamic, then anchor bolt is insert molded in hole.
After anchor bolt is installed, bolt is blocked with fixture on bolt and guarantees that screw rod does not rotate, is twisted using torque spanner
Tight nut, pre-tightens anchor bolt.
After the completion of preload, fixture is unloaded, unclamps nut, the connector that will be fixed installs, with torque spanner according to anchor bolt
Specifications and models requirement apply torsion, be installed.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the utility model, still, this
Field technical staff is it is easily understood that the protection scope of the utility model is expressly not limited to these specific embodiments.?
Under the premise of the principles of the present invention, those skilled in the art can make equivalent change to the relevant technologies feature
Or replacement, the technical solution after these changes or replacement are fallen within the protection scope of the utility model.
Claims (8)
1. a kind of double base expanding and base expanding anchor bolts characterized by comprising screwed long axis, inner sleeve and outer sleeve；Wherein, described
Inner sleeve tubular in a ring is set on the outside of the long axis, and outer sleeve tubular in a ring is set in outside the inner sleeve
Side；The long axis stress displacement, opens inner sleeve stress, drives outer sleeve stress to open, come into full contact with simultaneously with concrete sill
Apply pressure, by increasing anchor bolt to the pressure increase anchor bolt of concrete sill and the frictional force of concrete sill.
2. double base expanding and base expanding anchor bolts according to claim 1, which is characterized in that inner sleeve tubular in a ring, and including extremely
The limb of few two force-applied deformations.
3. double base expanding and base expanding anchor bolts according to claim 2, which is characterized in that opened between two adjacent limbs of the inner sleeve
Equipped with through slot, be flared out each limb respectively.
4. double base expanding and base expanding anchor bolts according to claim 1, which is characterized in that the outer sleeve is to be shorter in length than inner sleeve, directly
Diameter is greater than the annular canister of inner sleeve comprising the limb of at least two force-applied deformations.
5. double base expanding and base expanding anchor bolts according to claim 4, which is characterized in that opened between two adjacent limbs of the outer sleeve
Equipped with through slot, be flared out each limb respectively.
6. double base expanding and base expanding anchor bolts according to claim 4, which is characterized in that the outer sleeve further includes being arranged on the outer wall,
To prevent the anti-dropout concave point slided between outer sleeve and the inner sleeve.
7. double base expanding and base expanding anchor bolts according to claim 4, which is characterized in that the outer sleeve limb outer wall is equipped with anti-skidding rolling
Flower, to increase the frictional force between outer sleeve and concrete sill.
8. double base expanding and base expanding anchor bolts according to claim 1, which is characterized in that be additionally provided with crush cones in the long axis lower end
Face, the extruding conical surface and long axis are integrally formed, and the maximum gauge for squeezing the conical surface is arranged in bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820549356.4U CN208595130U (en) | 2018-04-18 | 2018-04-18 | Double base expanding and base expanding anchor bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820549356.4U CN208595130U (en) | 2018-04-18 | 2018-04-18 | Double base expanding and base expanding anchor bolts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595130U true CN208595130U (en) | 2019-03-12 |
Family
ID=65600008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820549356.4U Expired - Fee Related CN208595130U (en) | 2018-04-18 | 2018-04-18 | Double base expanding and base expanding anchor bolts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208595130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219869A (en) * | 2019-06-17 | 2019-09-10 | 沈阳建筑大学 | A kind of end bracing type unilateral bolt fastener |
-
2018
- 2018-04-18 CN CN201820549356.4U patent/CN208595130U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219869A (en) * | 2019-06-17 | 2019-09-10 | 沈阳建筑大学 | A kind of end bracing type unilateral bolt fastener |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190312 |