CN202811754U - Anchor bolt - Google Patents
Anchor bolt Download PDFInfo
- Publication number
- CN202811754U CN202811754U CN201220421408.2U CN201220421408U CN202811754U CN 202811754 U CN202811754 U CN 202811754U CN 201220421408 U CN201220421408 U CN 201220421408U CN 202811754 U CN202811754 U CN 202811754U
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- Prior art keywords
- bolt
- thread portion
- crab
- anchor bolt
- utility
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Abstract
The utility model discloses an anchor bolt which comprises a thread portion, a connection portion and a novel tooth-shaped thread portion, wherein the thread portion is arranged at the uppermost end, the connection portion is connected with the thread portion, and the novel tooth-shaped thread portion is connected with the connection portion. When the anchor bolt and glue are combined, adhering combination performance requirements of a normal chemical anchor bolt are met, and novel tooth-shaped threads can be adapted to the environment of alternate vibration loads. In addition, according to the tooth-shaped design of the anchor bolt, when a product is installed, glue discharging is ideal, the combination of the anchor bolt and the glue is tight, and mechanical properties are good. Meanwhile, by means of the special tooth shape, the product can also be applied to the condition of cracked concrete.
Description
Technical field
The utility model relates to a kind of crab-bolt of anchoring in concrete.
Background technique
Present anchoring process both domestic and external and with it corresponding crab-bolt form mainly contain following three kinds:
One, intumescent metal anchor bolt: its carrying principle produces expansive force when being the crab-bolt installation, and then produces frictional force, and load is delivered to concrete substrate by frictional force.
The intumescent metal anchor bolt is very high to the requirement of base material, and substrate intensity is very large on the impact of expansive force, lost efficacy easily in vibration environment, and installation process is affected by human factors very greatly, is easy to reduce expansive force, and causes accident.
Two, reaming type metal anchor bolt: in concrete, forming the protruding hole of taper by special-purpose counterbore cutter head, in the locking of sleeve crab-bolt and concrete.
If simple use reaming type metal anchor bolt owing to still there is the gap between reaming type metal anchor bolt and concrete hole, can have concrete hole to continue the effect that destroys when bearing the long-term low-amplitude load that continues, and also is a kind of damage to concrete substrate.And in concrete substrate situation in bad order, the reaming type metal anchor bolt can't very provide due bearing capacity, as hole, crack and the incomplete situation of curing etc. are arranged in the concrete.
Three, chemical anchor bolts all are bore straight hole in concrete after, to use Chemical Felter that screw rod is bonded in the concrete, and its carrying principle is bonding.Load is delivered to concrete by the binding materials such as resin that solidify from crab-bolt.
Existing chemical anchor bolts: on the one hand, bonding mode is when running into alternating load, and adhesive layer ftractures easily and causes the bearing capacity of conventional chemical standard thread crab-bolt indefinite.On the one hand, conventional criteria screw thread chemical anchor bolts can't adapt to the situation of cracked concrete in addition.
In sum, along with engineering construction needs, the invention of the crab-bolt of the anchoring in a kind of new, safe concrete is imperative.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, problem to be solved be traditional bonding mode when running into alternating load, adhesive layer ftractures easily and causes the bearing capacity of conventional chemical standard thread crab-bolt indefinite.In addition on the one hand, conventional criteria screw thread chemical anchor bolts can't adapt to the situation of cracked concrete, and in order to solve above-mentioned two problems, the utility model provides a kind of novel spiral way imbedding base material part, has changed conventional tooth form and size.The utility model crab-bolt can satisfy the adhesive bond performance of conventional chemical crab-bolt when colloid is combined, because new tooth form screw thread can adapt to again the alternately environment of oscillating load.In addition on the one hand, because novel tooth form Design of Screw Thread, binder removal was better tightr with combination colloid when product itself was installed, and mechanical property is better, and owing to special tooth form screw thread, product can also be applied to the situation of cracked concrete simultaneously.
That is: a kind of crab-bolt is comprised of conventional helical thread portion, attachment portion, novel tooth form helical thread portion three parts, and novel tooth form part can realize stronger being connected with colloid, can be applied to alternating load and cracked concrete simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
The utility model provides a kind of crab-bolt, it is characterized in that, it comprises: helical thread portion, the attachment portion that is connected with described helical thread portion and the novel tooth form helical thread portion that is connected with the attachment portion topmost.
Described attachment portion is adjustable according to applicable situation length, or length is zero.
Described novel tooth form helical thread portion tooth form and size be neither to be same as and greater than helical thread portion topmost.
The relative prior art of the utility model has the following advantages and beneficial effect:
The utility model crab-bolt can satisfy the adhesive bond performance of conventional chemical crab-bolt when colloid is combined, because new tooth form can adapt to again the alternately environment of oscillating load.In addition on the one hand, owing to novel tooth form design, binder removal was better tightr with combination colloid when product itself was installed, and mechanical property is better, and owing to special tooth form, product can also be applied to the situation of cracked concrete simultaneously.
Description of drawings:
To the description of embodiment of the present utility model in conjunction with its accompanying drawing, can further understand its practical novel purpose, specific structural features and advantage by following.Wherein, accompanying drawing is:
Fig. 1 is the perspective view of the utility model crab-bolt;
Fig. 2 is the perspective view of another angle of the utility model crab-bolt;
Fig. 3 is the use view of crab-bolt in the anchoring process of the utility model crab-bolt.
The helical thread portion 3 of novel tooth form helical thread portion 1, attachment portion 2, concrete outside.
Embodiment:
The utility model will be further described below in conjunction with the example among the figure.
The utility model is to use a kind of anchoring process in concrete of construction aspect and the crab-bolt that matches, and is the significant improvement of making to the basis of the shortcoming of existing traditional bonding mode and crab-bolt, has very important practice significance.
The anchoring process of applicable the utility model crab-bolt is: put the crab-bolt place in preparation and bore a straight hole (aperture changes to some extent according to the difference of injecting glue amount), finish the clearly work in hole after the boring, then inject Chemical Felter (volume account for total measurement (volume) 2/3), afterwards this model utility being screwed in the hole until bottom leaves standstill, the wait colloid solidifies, and can carry.
As shown in Figure 1, the utility model crab-bolt comprises the helical thread portion 3 that is arranged at novel tooth form helical thread portion 1, attachment portion 2 and concrete outside in the anchor hole.
During specific operation, as follows with the step of the utility model crab-bolt anchoring process:
(1) location, crab-bolt position is installed and bores straight hole according to installation requirement at needs;
(2) clear out in the hole dust and keep hole wall bright and clean;
(3) inject Chemical Felter in the hole, injection amount is about 2/3 of pore volume;
(4) the novel tooth form helical thread portion 1 of model utility crab-bolt is down screwed in the hole, until the bottom, only stay conventional thread partly to be that the helical thread portion 3 of concrete outside is outer and be exposed at substrate surface, leave standstill and wait for and solidifying;
(5) judge curing time according to ambient humidity, temperature etc., load afterwards installation.
In a word, the utility model crab-bolt provides a kind of novel spiral way imbedding base material part, has changed conventional tooth form and size.The utility model crab-bolt can satisfy the adhesive bond performance of conventional chemical crab-bolt when colloid is combined, because new tooth form screw thread can adapt to again the alternately environment of oscillating load.In addition on the one hand, because novel tooth form Design of Screw Thread, binder removal was better tightr with combination colloid when product itself was installed, and mechanical property is better, and owing to special tooth form, product can also be applied to the situation of cracked concrete simultaneously.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the purpose of this utility model, and be not with opposing restriction of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model the above embodiment's variation, modification.
Claims (3)
1. a crab-bolt is characterized in that it comprises: helical thread portion, the attachment portion that is connected with described helical thread portion and the novel tooth form helical thread portion that is connected with the attachment portion topmost.
2. crab-bolt according to claim 1 is characterized in that, described attachment portion is adjustable according to applicable situation length.
3. crab-bolt according to claim 1 is characterized in that, described novel tooth form helical thread portion tooth form and size be neither to be same as and greater than helical thread portion topmost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220421408.2U CN202811754U (en) | 2012-08-23 | 2012-08-23 | Anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220421408.2U CN202811754U (en) | 2012-08-23 | 2012-08-23 | Anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811754U true CN202811754U (en) | 2013-03-20 |
Family
ID=47870634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220421408.2U Expired - Lifetime CN202811754U (en) | 2012-08-23 | 2012-08-23 | Anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015233A (en) * | 2016-01-18 | 2016-10-12 | 杭州斯泰新材料技术有限公司 | Safe anchor bolt with lattice rib stirring knife |
-
2012
- 2012-08-23 CN CN201220421408.2U patent/CN202811754U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015233A (en) * | 2016-01-18 | 2016-10-12 | 杭州斯泰新材料技术有限公司 | Safe anchor bolt with lattice rib stirring knife |
| CN106015233B (en) * | 2016-01-18 | 2018-11-06 | 杭州斯泰新材料技术有限公司 | A kind of safe anchor bolt whisking knife with lattice rib |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |