CN201513443U - Pre-embedded bolt - Google Patents
Pre-embedded bolt Download PDFInfo
- Publication number
- CN201513443U CN201513443U CN2009202543242U CN200920254324U CN201513443U CN 201513443 U CN201513443 U CN 201513443U CN 2009202543242 U CN2009202543242 U CN 2009202543242U CN 200920254324 U CN200920254324 U CN 200920254324U CN 201513443 U CN201513443 U CN 201513443U
- Authority
- CN
- China
- Prior art keywords
- bolt
- screw rod
- embedded
- embedded bolt
- support
- 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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- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to the technical field of anchor bolts, and discloses a pre-embedded bolt used for a bridge support. The pre-embedded bolt has the main technical characteristics that a screw rod is included, and a bolt sleeve is connected to the top end of the screw rod. In the pre-embedded bolt provided by the utility model, the pre-embedded part comprises the screw rod and the bolt sleeve, and steel material is saved because the screw rod is thinner. When the pre-embedded bolt is in use, the bolt sleeve and the screw rod are connected together for pre-embedment, and a mounting hole of the support and the pre-embedded bolt sleeve are screwed by the bolt after aligned. The support can be pulled out for replacement as long as the bolt on the fixed support is unscrewed and a bridge body is slightly jacked up when the support needs to be replaced. The support is installed and replaced very conveniently.
Description
Technical field
The utility model belongs to the anchor bolt technical field, relates in particular to a kind of pre-embedded bolt that is used for bridge pad.
Background technique
In bridge construction, Horizontal displacement that produces for adaptive temperature variation etc. and corner, shock attenuation needs need erection support to carry out the horizontal force that transmits on pressure-bearing and the transfer beams.Current use be mainly pot rubber bearing and spherical bearing.The installation of bearing is the connectivity problem that solves beam and pier by pre-embedded bolt.The pre-embedded bolt of pot rubber bearing is the foundation made from the round steel drilling and tapping, is embedded in during installation in the pinner of pier, with bearing mounting hole and following pre-embedded bolt foundation alignment, tightens with bolt during erection support again.Spherical bearing then is a pre embedded bolt in the pier pinner, with bearing mounting hole and screw rod contraposition, tightens with nut during installation again.All there is certain defective in two kinds of mounting types: 1, the pre-embedded bolt foundation of pot rubber bearing is too many with steel, the just screw rod and the pre-embedded bolt foundation screwed portion of the support shearing force of really loading, and the size at other positions does not play influence.Though 2, the pre-embedded bolt of spherical bearing has solved the shortcoming of pot bearing pre-embedded bolt waste steel, has brought difficulty for the replacing bearing.
The model utility content
Problem to be solved in the utility model just provides a kind of both being convenient to and installs and change bearing, saves the pre-embedded bolt of steel again.
For addressing the above problem, the technical solution adopted in the utility model is: comprise screw rod, the top of described screw rod is connected with bolt collar.
Its additional technical feature is: the outer wall of described bolt collar has groove; Described bolt collar is connected with screw flight; Described bolt collar and screw rod welding.
Pre-embedded bolt provided by the utility model compared with prior art, pre-buried part is made of screw rod and bolt collar, screw portion is thinner, saves steel.During use, earlier bolt collar and screw rod are tightened, welded or tighten afterwards earlier and weld, again that bolt collar and screw rod is pre-buried.During erection support,, tighten with bolt and to get final product the mounting hole of bearing and pre-buried bolt collar alignment.When bearing need be changed, as long as the bolt of fixed bearing is backed out, beam body jack-up a little, bearing just can be pulled out and be changed.Installation and replacing bearing are very convenient.And the outer wall of bolt collar has groove, more helps pre-embedded bolt and basic be connected firm.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model pre-embedded bolt;
Fig. 2 is the another kind of structural representation of pre-embedded bolt.
Embodiment
Be described in further details below in conjunction with the concrete structure of accompanying drawing the utility model pre-embedded bolt.
As shown in Figure 1, the utility model pre-embedded bolt comprises screw rod 1, and the top of screw rod 1 is connected with bolt collar 2.As shown in Figure 2, the outer wall of bolt collar 2 has groove 3.
During use, earlier bolt collar 2 and screw rod 1 are tightened, welded or tighten afterwards earlier and weld, again that bolt collar 2 and screw rod 1 is pre-buried.During erection support 4,, tighten with bolt 6 and to get final product the mounting hole 5 of bearing 4 and pre-buried bolt collar 2 alignment.When bearing 4 needed to change, as long as the bolt 6 of fixed bearing 4 is backed out, beam body jack-up a little, bearing 4 just can be pulled out and be changed.And the outer wall of bolt collar 2 has groove 3, more helps pre-embedded bolt and basic be connected firm.
Claims (4)
1. pre-embedded bolt comprises screw rod, it is characterized in that: the top of described screw rod is connected with bolt collar.
2. pre-embedded bolt according to claim 1 is characterized in that: the outer wall of described bolt collar has groove.
3. pre-embedded bolt according to claim 1 is characterized in that: described bolt collar is connected with screw flight.
4. according to claim 1,2 or 3 described pre-embedded bolts, it is characterized in that: described bolt collar and screw rod welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202543242U CN201513443U (en) | 2009-11-04 | 2009-11-04 | Pre-embedded bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202543242U CN201513443U (en) | 2009-11-04 | 2009-11-04 | Pre-embedded bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513443U true CN201513443U (en) | 2010-06-23 |
Family
ID=42484850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202543242U Expired - Fee Related CN201513443U (en) | 2009-11-04 | 2009-11-04 | Pre-embedded bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513443U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464217A (en) * | 2016-01-06 | 2016-04-06 | 柳州东方工程橡胶制品有限公司 | Self-adaption sliding rubber support and replacement method thereof |
| CN107268430A (en) * | 2017-08-01 | 2017-10-20 | 中国铁路设计集团有限公司 | A kind of anchor suitable for beam bridge and height-adjustable supports and its construction method |
-
2009
- 2009-11-04 CN CN2009202543242U patent/CN201513443U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464217A (en) * | 2016-01-06 | 2016-04-06 | 柳州东方工程橡胶制品有限公司 | Self-adaption sliding rubber support and replacement method thereof |
| CN107268430A (en) * | 2017-08-01 | 2017-10-20 | 中国铁路设计集团有限公司 | A kind of anchor suitable for beam bridge and height-adjustable supports and its construction method |
| CN107268430B (en) * | 2017-08-01 | 2023-09-19 | 中国铁路设计集团有限公司 | Anchoring device suitable for beam bridge, heightening support and construction method of heightening support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20131104 |