CN209083744U - A kind of cement self tapping anchor bolt of improvement - Google Patents
A kind of cement self tapping anchor bolt of improvement Download PDFInfo
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- CN209083744U CN209083744U CN201821754480.0U CN201821754480U CN209083744U CN 209083744 U CN209083744 U CN 209083744U CN 201821754480 U CN201821754480 U CN 201821754480U CN 209083744 U CN209083744 U CN 209083744U
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- straight
- anchor bolt
- washer
- screw
- gear teeth
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Abstract
The utility model provides a kind of cement self tapping anchor bolt of improvement, belongs to connector technical field, it solves the problems, such as that existing cement anchor bolt installation effect is poor.The cement self tapping anchor bolt of this improvement includes: screw rod, it is made of straight-bar portion and threaded portion, threaded portion is provided with screw cutting, and screw cutting extends to threaded portion far from straight one end of the rod close to straight one end of the rod by threaded portion, screw cutting forms several convex teeth of circle on threaded portion, every convex equal arc transition of tooth of circle is to the adjacent convex tooth of two circles and forms the arc groove being arranged in the shape of a spiral around threaded portion, which extends along screw cutting track；Screw head, including head and washer portion, straight-bar portion arc transition to washer portion, and washer portion are provided with several gear teeth towards straight-bar portion side, and each gear teeth are uniformly distributed around washer portion axial line.The utility model has the characteristics that quick and easy for installation, conclusion effect is good.
Description
Technical field
The utility model belongs to connector technical field, is related to a kind of cement self tapping anchor bolt of improvement.
Background technique
Anchor bolt is one kind of the type of attachment of bolt, is the anchoring assembly product anchored to connected piece on substrate, point
For mechanical anchor and chemical anchor bolts, wherein mechanical anchor is the anchor that anchoring is formed using the rubbing action between anchor bolt and anchor hole
Bolt is divided into two classes: base expanding and base expanding anchor bolt, intumescent anchor bolt according to its working principle.
The most common expansion anchor in market is that screw portion and concrete substrate are fixed together by certain form, is
Indissociable, removably only nut, belongs to post-anchoring technology, needs first to drill, then hammer screw rod and anchored；
The substrate of anchor bolt anchoring is divided into armored concrete, prestressed concrete or plain concrete component, and wherein the head of anchor bolt is to be embedded in
In concrete substrate.
Existing cement and expanded bolt, the component chopped cooked entrails of sheep, construction it is cumbersome, installation effectiveness is low, can not unified construction standard, and
When being screwed into concrete substrate, it is easy spalling substrate, material edge construction can not be too near to.
In conclusion to solve the deficiency in existing cement anchor bolt structure, the utility model devises a kind of structure letter
Cement self tapping anchor bolt that is single, quick and easy for installation, concluding the good improvement of effect.
Summary of the invention
The utility model in order to solve the problems existing in the prior art, provide a kind of structure it is simple, it is quick and easy for installation, form
Tie the cement self tapping anchor bolt of the good improvement of effect.
The purpose of this utility model can be achieved through the following technical solutions: a kind of cement self tapping anchor bolt of improvement, comprising:
Screw rod is made of straight-bar portion and occlusion portion, occlusion portion is provided with screw cutting, and screw cutting is by being engaged
Portion extends to occlusion portion far from straight one end of the rod close to straight one end of the rod, and it is convex that the screw cutting forms several circles in occlusion portion
Tooth, every convex equal arc transition of tooth of circle is to the adjacent convex tooth of two circles and forms the arc groove being arranged in the shape of a spiral around occlusion portion, should
Arc groove extends along screw cutting track；
Screw head, including head and washer portion, straight-bar portion arc transition to washer portion, and washer portion are towards straight-bar portion
Side is provided with several gear teeth, and each gear teeth are uniformly distributed around washer portion axial line.
As the further improvement of this case, offered respectively on the convex tooth of multi-turn far from straight-bar portion equally distributed several scarce
Mouthful, the V-shaped setting of each notch.
Another step as this case is improved, and the gear teeth are uniformly distributed around washer portion axial line in involute shape, and every
A gear teeth extend to washer portion and straight-bar portion junction by washer portion edge.
Compared with prior art, the utility model structure setting is reasonable, passes through matching for screw cutting (convex tooth) and arc groove
Setting is closed, convenient for materials such as anchor bolt incision concrete, while the setting of arc groove can also be convenient for discharge residue；The setting of notch is just
In the more efficient cutting concrete of anchor bolt and further chip removal and accommodate residue, moreover it is possible to which reduction is screwed into friction；This outside lower whorl tooth
Setting can enhance frictional force, convenient for improving the bite force between anchor bolt and concrete material, it is ensured that be completely embedded, be difficult to pine
It is de-.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial structure diagram of Fig. 1.
In figure, 10, screw head；11, head；12, washer portion；13, the gear teeth；20, screw rod；21, straight-bar portion；22, occlusion portion；
23, screw cutting；24, convex tooth；241, notch；25, arc groove.
Specific embodiment
Below with reference to examples and drawings, the technical solution of the utility model is further elaborated.
As depicted in figs. 1 and 2, the cement self tapping anchor bolt of this improvement includes:
Screw rod 20 is made of straight-bar portion 21 and occlusion portion 22, occlusion portion 22 is provided with screw cutting 23, and cut
Screw thread 23 extends to occlusion portion 22 far from 21 one end of straight-bar portion close to 21 one end of straight-bar portion by occlusion portion 22, and screw cutting 23 is being stung
The convex tooth 24 of multi-turn is formed in conjunction portion 22, every circle equal arc transition of convex tooth 24 is to the adjacent convex tooth 24 of two circles and is formed around occlusion portion
22 arc grooves 25 being arranged in the shape of a spiral, the arc groove 25 extend along 23 track of screw cutting；
Screw head 10, including head 11 and washer portion 12,21 arc transition of straight-bar portion to washer portion 12, and 12 court, washer portion
21 side of straight-bar portion is provided with multiple gear teeth 13, each gear teeth 13 are uniformly distributed around 12 axial line of washer portion.
Existing cement and expanded bolt, the component chopped cooked entrails of sheep, construction it is cumbersome, installation effectiveness is low, can not unified construction standard, and
When being screwed into concrete substrate, it is easy spalling substrate, material edge construction can not be too near to.
For this purpose, the utility model devises a kind of cement self tapping anchor bolt of improvement, pass through the convex tooth 24 of screw cutting 23() with
Arc groove 25 is equipped with, and convenient for materials such as anchor bolt incision concrete, while the setting of arc groove 25 can also be residual convenient for being discharged
Slag.
Specifically, anchor bolt is actually made of screw head 10 and screw rod 20, wherein screw head 10 includes head 11 and washer portion
12, bar portion is then formed by straight-bar portion 21 and the combination of occlusion portion 22, and screw head 10 and practical form for integral type of screw rod 20 are arranged, wherein
21 arc transition of straight-bar portion can enhance the self structure intensity of entire anchor bolt, to washer portion 12 convenient for the firm installation of anchor bolt.
Screw cutting 23 is covered in entire occlusion portion 22, while surrounding setting far from 21 one end of straight-bar portion in occlusion portion 22
There is the conical surface, convenient for shooting concrete material.
Preferred screw cutting 23 is presented in occlusion portion 22 the really convex tooth of multi-turn of spiral surrounding setting in the present embodiment
24, arc groove 25 is set between the convex tooth 24 of two adjacent rings, and arc groove 25 extends namely arc along 23 track of screw cutting at this time
Slot 25 and screw cutting 23 are arranged side by side, and respectively in the shape of a spiral around occlusion portion 22.
Arc groove 25 is equipped with screw cutting 23, and when anchor bolt is screwed into concrete material, the cutting of screw cutting 23 is mixed
Solidifying soil forms corresponding internal screw thread in concrete hole wall, while the residue generated when being screwed into anchor bolt is convenient in the setting of arc groove 25
It discharges, guarantees that anchor bolt is completely embedded with concrete material, reduce friction when bolt is screwed into, reduce the damage of anchor bolt；This
Outside, residue can not be discharged immediately, can be contained in arc groove 25, and residue is avoided to enter shape between anchor bolt and concrete material
At swelling stress, it is ensured that install and stablize between anchor bolt and substrate.
Wherein the slot bottom of arc groove 25 is an arcwall face, is capable of increasing the cross-sectional area of arc groove 25 to a certain extent,
Convenient for subsequent discharge residue, anchor bolt more efficiently facilitates when squeezing into concrete.
Preferably, equally distributed multiple notches 241 are offered respectively on the convex tooth 24 of multi-turn far from straight-bar portion 21, each
The V-shaped setting of notch 241.
Notch 241 is located on the convex tooth 24 of several circles of the occlusion portion 22 far from 21 one end of straight-bar portion, the V-shaped setting of notch 241
Anchor bolt incision concrete material is easily facilitated, in concrete hole wall tap out, loading effect is good, is also further conducive to concrete
Residue discharge is external, improves the erectility of anchor bolt, install convenient, in addition, notch 241 can equally play accommodate residue reduce it is swollen
The effect of swollen stress is conducive to anchor bolt installation and stablizes.
Further, the gear teeth 13 are uniformly distributed around 12 axial line of washer portion in involute shape, and each gear teeth 13 by
12 edge of washer portion extends to washer portion 12 and 21 junction of straight-bar portion.
The setting in washer portion 12 herein can guarantee that the connection plane after anchor bolt loading concrete keeps smooth, avoid connecting
It is not close, while being surround in washer portion 12 towards 21 side of straight-bar portion and multiple gear teeth 13 with retaining effect are set, increase anchor
The frictional force contacted between bolt and concrete avoids anchor bolt from rollback phenomenon occur.
It is preferred that the gear teeth 13 extend to washer portion 12 and 21 junction of straight-bar portion by 12 edge of washer portion, wherein the gear teeth 13 are arc
Laminated structure, each gear teeth 13 are in involute shape around 12 axial line of washer portion, so that the gear teeth 13 cover entire washer portion 12, into one
Step increases the bonding strength between anchor bolt and concrete, improves the installation effect of anchor bolt.
The cement self tapping anchor bolt structure setting of this improvement is reasonable, pass through the convex tooth 24 of screw cutting 23() match with arc groove 25
Setting is closed, forms pulling capacity, while arc groove 25 in concrete hole wall tap out convenient for materials such as anchor bolt incision concrete
Setting can also convenient for discharge residue；The setting of notch 241 cuts concrete convenient for anchor bolt, and further chip removal can simultaneously accommodate residual
Slag, moreover it is possible to which reduction is screwed into friction, reduces swelling stress；The setting of this external gear teeth 13 can enhance frictional force, convenient for improving anchor bolt
Bite force between concrete material, it is ensured that be completely embedded, be difficult to loosen.
Described herein is only preferred embodiments of the present invention, but the protection scope of the utility model is not
It is confined to this.The modify or supplement or adopt that the utility model those skilled in the art carries out described specific embodiment
It is replaced, should all be covered by within the protection scope of the utility model with similar mode.
Claims (3)
1. a kind of cement self tapping anchor bolt of improvement characterized by comprising
Screw rod is made of straight-bar portion and occlusion portion, occlusion portion is provided with screw cutting, and screw cutting is leaned on by occlusion portion
Nearly straight one end of the rod extends to occlusion portion far from straight one end of the rod, and the screw cutting forms several convex teeth of circle in occlusion portion,
Every convex equal arc transition of tooth of circle is to the adjacent convex tooth of two circles and forms the arc groove being arranged in the shape of a spiral around occlusion portion, the arc
Slot extends along screw cutting track；
Screw head, including head and washer portion, straight-bar portion arc transition to washer portion, and washer portion are towards straight-bar portion side
Several gear teeth are provided with, each gear teeth are uniformly distributed around washer portion axial line.
2. a kind of cement self tapping anchor bolt of improvement according to claim 1, which is characterized in that the multi-turn far from straight-bar portion is convex
Equally distributed several notches, the V-shaped setting of each notch are offered on tooth respectively.
3. a kind of cement self tapping anchor bolt of improvement according to claim 1 or 2, which is characterized in that the gear teeth are around China
Department's portion's axial line is uniformly distributed in involute shape, and each gear teeth extend to washer portion by washer portion edge and connect with straight-bar portion
Place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754480.0U CN209083744U (en) | 2018-10-27 | 2018-10-27 | A kind of cement self tapping anchor bolt of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754480.0U CN209083744U (en) | 2018-10-27 | 2018-10-27 | A kind of cement self tapping anchor bolt of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209083744U true CN209083744U (en) | 2019-07-09 |
Family
ID=67121117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821754480.0U Active CN209083744U (en) | 2018-10-27 | 2018-10-27 | A kind of cement self tapping anchor bolt of improvement |
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| Country | Link |
|---|---|
| CN (1) | CN209083744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001081A (en) * | 2021-11-10 | 2022-02-01 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Anti-seizing stainless steel bolt and manufacturing method thereof |
-
2018
- 2018-10-27 CN CN201821754480.0U patent/CN209083744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001081A (en) * | 2021-11-10 | 2022-02-01 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Anti-seizing stainless steel bolt and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314000 No. 88 Changsheng East Road, Jiaxing, Zhejiang (Zhejiang Dongming Stainless Steel Products Factory No. three, Limited by Share Ltd) Patentee after: Jiaxing Hebang Machinery Technology Co.,Ltd. Address before: 314000 No. 88 Changsheng East Road, Jiaxing, Zhejiang (Zhejiang Dongming Stainless Steel Products Factory No. three, Limited by Share Ltd) Patentee before: JIAXING UNITEK MACHINERY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |