CN203096941U - Detachable locking pin screw - Google Patents
Detachable locking pin screw Download PDFInfo
- Publication number
- CN203096941U CN203096941U CN 201220727727 CN201220727727U CN203096941U CN 203096941 U CN203096941 U CN 203096941U CN 201220727727 CN201220727727 CN 201220727727 CN 201220727727 U CN201220727727 U CN 201220727727U CN 203096941 U CN203096941 U CN 203096941U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw rod
- screw
- locking pin
- external screw
- 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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Abstract
The utility model provides a detachable locking pin screw which is arranged in a lower layer of poured concrete in a detachable mode. The detachable locking pin screw comprises an external screw, an internal screw and nuts connecting the external screw and the internal screw. The nuts are horn-shaped, a horn port of each nut abuts against a mould, the external screw stretches into the nut from the external side of the mould, the internal screw is arranged on the inner side of the internal screw, and is screwed into the nuts through an opposite side of the horn port of the nut. According to the detachable locking pin screw, due to the fact that the external screw is screwed into the nuts to be used as a locking pin screw, after the external screw is used and the mould is disassembled, the internal screw is enabled to be separated from the nuts by twisting the external screw to disassemble the nuts and the external screw. The detachable locking pin screw can be used repeatedly, and overcome the defect that a locking pin screw cannot be used repeatedly in the prior art.
Description
Technical field
The utility model relates to the building implement field, particularly a kind of dismountable lock pin screw rod.
Background technology
At present, during the concreting wall, generally be from following in layer to top casting, after one deck waters and finishes below, build top one deck again.When the concreting wall, need to use template, template utilization butt joint screw rod is fixed, concrete is poured between two templates, after the concrete setting, stripping, convenient in order to build the upper strata concrete wall, this moment, topmost row's Screw arbor with nut at both-ends was not removed, and other dismounting recycles, install reinforce above during one deck outer wall template, the Screw arbor with nut at both-ends that can utilize this layer not remove is reinforced top one deck bottom template, because this layer concrete body of wall top of having built of moulding has firmly been built in the face die plate outsourcing down, and the strengthening quality that Screw arbor with nut at both-ends will guarantee down face die plate is set like this, be difficult for layer concrete hourglass slurry on build.Here, the top one deck Screw arbor with nut at both-ends when building this layer concrete, the lock pin screw rod when just becoming top one deck concreting.Like this, will stay the top one row's Screw arbor with nut at both-ends in the body of wall of having built for every layer.For the several rows of lock pin screw rod of staying in the body of wall, at present processing method mainly is will stretch out outer one section of body of wall to be cut off, and following deficiency is arranged like this:
The remaining screw rod of staying in the body of wall will corrosion, if rain drop erosion is arranged, will rust staining occur at wall surface, influences attractive in appearance.
In addition, use large quantities of Screw arbor with nut at both-ends not reuse, produced waste.
Summary of the invention
The purpose of this utility model is to handle the deficiency of being brought at the lock pin screw rod that will stay at present in the body of wall, a kind of dismountable lock pin screw rod is provided, build finish after, can the dismounting of lock pin screw rod, thoroughly solution will lock the pin screw rod at present and will be retained in the interior deficiency that is caused of body of wall.
The technical solution of the utility model is: a kind of dismountable lock pin screw rod, be removably mounted on the concrete lower floor that is built, and comprise external screw rod, inner screw and be connected the nut of described external screw rod and inner screw; Described nut also is provided with on every side and is trumpet-shaped overcoat, and its horn mouth is near template, and described external screw rod stretches into the precession nut from the template outside, and described inner screw is arranged on the template inboard, screws in nut from the bell-mouthed opposite side of described nut.
Further, in above-mentioned dismountable lock pin screw rod: around described nut, also be provided with overcoat.
Further, in above-mentioned dismountable lock pin screw rod: the root of described inner screw is provided with projection.
Further, in above-mentioned dismountable lock pin screw rod: on described external screw rod, also be provided with hold-down nut, when described hold-down nut is tightened near template.
Adopt in the utility model external screw rod is screwed in the nut, finish using as lock pin screw rod, behind the stripping, can be by turning external screw rod, make inner screw break away from nut after, remove nut and external screw rod, can reuse, overcome and to have reused the deficiency that lock pin screw rod is brought at present.
Below in conjunction with specific embodiment the utility model is done comparatively detailed description.
Description of drawings
Fig. 1 locks pin screw rod user mode schematic diagram for the utility model embodiment.
Among the figure: 1, external screw rod, 2, inner screw, 3, nut, 4, overcoat, 5, hold-down nut, 6, projection, 7, template, 8, concrete.
The specific embodiment
As shown in Figure 1, the lock pin screw rod in the present embodiment mainly is made up of three parts, and first-selection is the external screw rod 1 that extend into the template inboard from template 7 outsides, secondly is the inner screw 2 that is embedded in the concrete eight, is the horn-like nut 3 near template at last.Shape about nut 3, also can use common nut, as long as the profile at the overcoat 4 of outer wrapping is a horn mouth, external screw rod 1 is screwed into the horn mouth of nut 3 from template 7 outsides, the horn mouth of nut 3 is near the inboard of template 7, hold-down nut 5 also is installed on external screw rod 1 is close to nut 3 horn mouths and template 7 inboards, in concrete eight, inner screw 2 is screwed into from the horn mouth opposite of nut 3, the root of inner screw 2 is provided with a projection 6, inner screw 2 is fixed on later in the concrete wall in concrete setting, also is provided with plastic wrapper 4 in trumpet type nut 3 outsides.
After finishing using as lock pin screw rod, can be by turning on hold-down nut 5, stripping 7 then, by turning external screw rod 1, tubaeform overcoat 4 and nut 3 and inner screw 2 are broken away from, then external screw rod 1 and tubaeform overcoat 4 and nut 3 are taken out from the concrete eight body of wall, form flaring pit on concrete wall, these pits are easy to repair.
Claims (4)
1. a dismountable lock pin screw rod is removably mounted on the concrete lower floor that is built, and it is characterized in that: comprise external screw rod (1), inner screw (2) and be connected described external screw rod (1) and the nut (3) of inner screw (2);
Described nut (3) also is provided with on every side and is trumpet-shaped overcoat (4), its horn mouth is near template (7), described external screw rod (1) stretches into the precession nut from template (7) outside, described inner screw (2) is arranged on template (7) inboard, from the inboard nut that screws in of described nut (3).
2. dismountable lock pin screw rod according to claim 1 is characterized in that: described nut (3) is the horn mouth nut.
3. dismountable lock pin screw rod according to claim 1, it is characterized in that: the root of described inner screw (2) is provided with projection (6).
4. dismountable lock pin screw rod according to claim 1 is characterized in that: on described external screw rod (1), also be provided with hold-down nut (5), described hold-down nut (5) when tightening near template (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727727 CN203096941U (en) | 2012-12-26 | 2012-12-26 | Detachable locking pin screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727727 CN203096941U (en) | 2012-12-26 | 2012-12-26 | Detachable locking pin screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096941U true CN203096941U (en) | 2013-07-31 |
Family
ID=48848355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220727727 Expired - Fee Related CN203096941U (en) | 2012-12-26 | 2012-12-26 | Detachable locking pin screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203096941U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993736A (en) * | 2014-05-21 | 2014-08-20 | 中铁建设集团有限公司 | Fastening bolt for shear wall formwork |
| CN104047429A (en) * | 2014-06-19 | 2014-09-17 | 南通四建集团有限公司 | Method for improving quality of concrete joints in constructional engineering |
| CN110485725A (en) * | 2019-09-06 | 2019-11-22 | 深圳市建工集团股份有限公司 | Based on carbon fiber Screw arbor with nut at both-ends to draw fixed structure |
| CN111021713A (en) * | 2019-12-13 | 2020-04-17 | 中冶天工集团有限公司 | Novel concrete embedded bolt mechanism and use method thereof |
-
2012
- 2012-12-26 CN CN 201220727727 patent/CN203096941U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993736A (en) * | 2014-05-21 | 2014-08-20 | 中铁建设集团有限公司 | Fastening bolt for shear wall formwork |
| CN104047429A (en) * | 2014-06-19 | 2014-09-17 | 南通四建集团有限公司 | Method for improving quality of concrete joints in constructional engineering |
| CN110485725A (en) * | 2019-09-06 | 2019-11-22 | 深圳市建工集团股份有限公司 | Based on carbon fiber Screw arbor with nut at both-ends to draw fixed structure |
| CN111021713A (en) * | 2019-12-13 | 2020-04-17 | 中冶天工集团有限公司 | Novel concrete embedded bolt mechanism and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20181226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |