CN2419311Y - Pulling bar nuts for construction formwork - Google Patents
Pulling bar nuts for construction formwork Download PDFInfo
- Publication number
- CN2419311Y CN2419311Y CN 00234042 CN00234042U CN2419311Y CN 2419311 Y CN2419311 Y CN 2419311Y CN 00234042 CN00234042 CN 00234042 CN 00234042 U CN00234042 U CN 00234042U CN 2419311 Y CN2419311 Y CN 2419311Y
- Authority
- CN
- China
- Prior art keywords
- nut
- sheath
- pull
- construction formwork
- polygonal
- 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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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The utility model relates to a pulling bar nut for a construction formwork, which belongs to an auxiliary part in construction. The pulling bar nut is mainly composed of a screw nut and a sheath, wherein, the screw nut is arranged in the center of the sheath which has a conical appearance, and the interior of the sheath is provided with a step hole and a convex ring; one end of the screw nut is conical, and the other end is polygonal; the connecting position of the surfaces of both ends of the screw nut is provided with a convex ring; a concave groove is arranged in a position corresponding to the hole wall of the sheath; the conical end of the screw nut and the convex ring are matched with the hole wall of the step hole and the concave groove of the sheath; the convex ring is matched with the surface of the polygonal screw nut; a gap is arranged between the outer end of the polygonal screw nut and the sheath. The utility model has the advantages of convenient installation and disassembly and ensured construction quality.
Description
The utility model relates to the pull-rod nut of using in a kind of building operations, belongs to the auxiliary component in the building operations.
At present, in building operations, cooperate with pull-rod nut by pull bar in the template of cast correspondence during wall its relative position is fixed, the two ends of promptly imbedding pull bar cooperate with pull-rod nut, as shown in Figure 1, the wall external screw rod also with the pull-rod nut threaded engagement, its outside is fastening by nut, after making the template relative fixed, again concrete etc. is inserted between the template.During template to be removed, external nut is unclamped, wall external screw rod and pull-rod nut break away from, and template is pulled down, and then pull-rod nut are backed out, and use again after treating again.Existing pull-rod nut generally is to be made of plain nut and tapered plastic wrapper, and nut is pressed in the tapered plastic wrapper, and plastic wrapper is used for waterproof.Though the pull-rod nut of this structure can be fixed in pull bar between the corresponding template, after fluid concrete finishes, is prone to plastic wrapper and nut break-off when unscrewing nut, make plastic wrapper be difficult to take out, cause trouble to construction.But if plastic wrapper does not take out, will influence construction quality, plastic wrapper must be taken out.
The purpose of this utility model is the pull-rod nut of using on a kind of construction formwork of design, and it is rational in infrastructure, is convenient to install and whole the taking-up.
The pull-rod nut of using on the designed construction formwork of the utility model mainly is made of nut and sheath, nut is positioned at the sheath center, the appearance of sheath is taper, its inside has stepped hole and baffle ring, one end of nut is taper, the other end is a polygonal, junction at nut two end surfaces has bulge loop, inwall corresponding position at the stepped hole of sheath has groove, groove is positioned at baffle ring one side, the step hole wall and the groove of the tapering point of nut and bulge loop and sheath closely cooperate, and the surface of the polygonal nut of baffle ring and opposite side closely cooperates, and has the gap between the outer end of polygonal nut and the sheath.
In the pull-rod nut of using on the designed construction formwork of the present utility model, the tapering point of nut be outer little in big taper.
In the pull-rod nut of using on the designed construction formwork of the utility model, the groove in the sheath is positioned on the nut tapering point one side jacket inner wall.
In the pull-rod nut of using on the designed construction formwork of the utility model, the polygonal end of nut is hexagon or quadrangle.
The pull-rod nut of using on the designed construction formwork of the utility model is when using, use identical with existing pull-rod nut, be fixed in the pull bar two ends of corresponding templates inboard, cooperate with the briquetting and the nut in the template outside, relative template position is fixed, can in template, carry out concrete pouring, after the fixing shaping of cast, remove template, pull-rod nut can be backed out, can treat to reuse again next time by instrument.
The advantage of the pull-rod nut of using on the designed construction formwork of the utility model is:
1. sheath and nut form an overall structure, therefore can wholely take out, and installation, convenient disassembly, easy to use, save the set-up time;
2. because sheath and nut are structure as a whole therefore repeated application repeatedly, and its cost is similar to the cost of existing pull-rod nut, but prolong the reduction use cost application life;
3. avoid occurring overcoat and nut break-off, guarantee construction quality.
The template that the pull-rod nut of using on the designed construction formwork of the utility model is mainly used in the building operations is fixed.
Fig. 1 is pull-rod nut user mode figure.
Fig. 2 is the structure chart of the pull-rod nut used on the designed construction formwork of the utility model.
Fig. 3 is the left side view of Fig. 2.
Fig. 4 is the right side view of Fig. 2.
In conjunction with specific embodiments the structure and the embodiment of the pull-rod nut used on the designed construction formwork of the utility model is described further with reference to the accompanying drawings below.
Embodiment
The pull-rod nut of using on the construction formwork shown in Fig. 2,3,4, mainly be made of nut 1 and sheath 2, the external surface of sheath 2 is conical, and there are two conical bores 3,4 its inside, have baffle ring 5 between the conical bore 3,4, on the inwall of conical bore 3, have annular groove 6.Conical bore 3 is outer little interior big, and conical bore 4 is inner small and outside big.The surface of nut 1 one ends be corresponding with conical bore 3 outer little in big taper shape, the other end is a hexagon, has bulge loop 7 between nut 1 surperficial taper shape and the hexagon.Nut 1 is positioned at the center of sheath 2, and taper shape one end of nut 1 and the hole wall of conical bore 3 fit tightly, and bulge loop 7 matches with groove 6, and baffle ring 5 cooperates with hexagon one side compression of nut 1.Have the gap between the hex end of conical bore 4 and nut 1, be beneficial to dismantling device and cooperate.
The pull-rod nut of using on this construction formwork is identical with the use of existing pull-rod nut when using, can be similarly mode of occupation as shown in Figure 1, but because its structure Design makes nut 1 and sheath 2 become an overall structure, be not outer defeat tight together, therefore nut 1 can not separate with sheath 2, the plastic wrapper of existing pull-rod nut and the phenomenon that inner nut breaks away from have been avoided, save installation, take-down time, guarantee construction quality, prolong the application life of pull-rod nut, thereby reduced use cost.
Under special circumstances, the hex end of nut 1 can be substituted by square or polygon, is beneficial to cooperate installation, dismounting with different instruments.
Claims (4)
1. the pull-rod nut of using on the construction formwork, mainly constitute by nut and sheath, it is characterized in that: nut is positioned at the sheath center, the appearance of sheath is taper, its inside has stepped hole and baffle ring, one end of nut is taper, the other end is a polygonal, junction at nut two end surfaces has bulge loop, inwall corresponding position at the stepped hole of sheath has groove, and groove is positioned at baffle ring one side, and the step hole wall and the groove of the tapering point of nut and bulge loop and sheath closely cooperate, the surface of the polygonal nut of baffle ring and opposite side closely cooperates, and has the gap between the outer end of polygonal nut and the sheath.
2. the pull-rod nut of using on the construction formwork according to claim 1, its feature also is: the tapering point of nut is outer little interior big taper.
3. the pull-rod nut of using on the construction formwork according to claim 1, its feature also is: the groove in the sheath is positioned on the nut tapering point one side jacket inner wall.
4. the pull-rod nut of using on the construction formwork according to claim 1, its feature also is: the polygonal end of nut is hexagon or quadrangle
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00234042 CN2419311Y (en) | 2000-05-08 | 2000-05-08 | Pulling bar nuts for construction formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00234042 CN2419311Y (en) | 2000-05-08 | 2000-05-08 | Pulling bar nuts for construction formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2419311Y true CN2419311Y (en) | 2001-02-14 |
Family
ID=33596241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00234042 Expired - Fee Related CN2419311Y (en) | 2000-05-08 | 2000-05-08 | Pulling bar nuts for construction formwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2419311Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132695A (en) * | 2013-02-22 | 2013-06-05 | 中交二航局第三工程有限公司 | Finish-rolled deformed steel bar and nut combination used for cantilever creeping formwork construction and installation method |
-
2000
- 2000-05-08 CN CN 00234042 patent/CN2419311Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132695A (en) * | 2013-02-22 | 2013-06-05 | 中交二航局第三工程有限公司 | Finish-rolled deformed steel bar and nut combination used for cantilever creeping formwork construction and installation method |
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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: 20010214 |