CN103953634A - Communal nail-shaped screw cap for base of crane and use method thereof - Google Patents
Communal nail-shaped screw cap for base of crane and use method thereof Download PDFInfo
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- CN103953634A CN103953634A CN201410186834.6A CN201410186834A CN103953634A CN 103953634 A CN103953634 A CN 103953634A CN 201410186834 A CN201410186834 A CN 201410186834A CN 103953634 A CN103953634 A CN 103953634A
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- nail
- shape nut
- nut
- embedded bolt
- shaped screw
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Abstract
The invention discloses a communal nail-shaped screw cap for the base of a crane and the use method of the communal nail-shaped screw cap. The communal nail-shaped screw cap is mainly used for mounting the base of the crane for building construction, and belongs to the technical field of building construction. The communal nail-shaped screw cap adopts the main technical scheme that the nail-shaped screw cap is composed of a nail cap, a nail rod and an inner threaded hole, wherein the nail cap, the nail rod and the inner threaded hole are processed into a whole, the thread pitches of the inner threaded hole are matched with those of a pre-buried bolt, and the diameter of the nail cap is larger than the diameter of the nail rod. The nail-shaped screw cap is convenient for mounting and demounting the crane on a construction site, the time for treating the displacement of the pre-buried bolt is shortened, and the construction period for mounting construction is ensured; the cost for handling the displacement of the pre-buried bolt can be effectively lowered; except for crane equipment for construction, the communal nail-shaped screw cap also can be used for pre-buried bolts on large scale power equipment in workshops, industrial buildings, experimental bases and the like, or sites where bolts or screws are inconvenient to replace, and has universality.
Description
Technical field
The present invention discloses the public nail of a kind of crane foundation shape nut and usage, relates in particular to the public nail of the crane foundation shape nut on building site, is mainly used in the installation of crane foundation for construction, belongs to technical field of building construction.
Background technique
The Hoisting Machinery of extensive use on building site, it is the visual plant that construction industry is carried out construction hoisting hauling operation, the vertical transportation of overwhelming majority structural material is all completed by it, can Hoisting Machinery normally move, and directly affects the control of construction safety, quality, progress and cost.Because the ultra-large construction project building site of our construction is used quantity large (only tower crane is with regard to 255 times), the specification of various lifting equipments more, therefore the pre-buried facility in various bases and method of construction all appear at this job site.For guaranteeing that lifting equipment can run well, equipment must be arranged on matching used basis, this basis must have enough steadinesss and resistance to capsizing, and applying at present maximum crane foundation forms is cast-type concrete basis, comprises shallow foundation and pile foundation.Although Hoisting Machinery basis is not engineering entity constituent element, is having a strong impact on construction safety, while therefore constructing, should carry out quality control according to equipment Foundations quality standard, design to it, make, install, check and accept supervisor.Part workmen thinks little of Hoisting Machinery foundation construction quality control, and quality problems often occur, because the concreting reason such as vibrate often can make pre-embedded bolt be subjected to displacement.Pre-embedded bolt is during to top offset, can be below basic framework pading plate; At pre-embedded bolt, during to bottom offset, making originally need to be with the pre-embedded bolt (as shown in Figure 2) of two nuts, and what have can only be with a nut, and the even nut having is not with (as shown in Figure 3) yet.For these pre-embedded bolts because of displacement short a joint or the short situation of a section, existing solution is:
1. when the displacement of pre-embedded bolt, be because do not control absolute altitude during pouring concrete well, with taking down the concrete way of one deck.
2. work as earth bearing strength and reach requirement (without piling), and in the situation with good conditionsi of place, the basis of reforming.
3. can fill a nut, and in the few situation of quantity, with tearing the way that subtracts basic framework thickness open, as shown in Figure 4.
4. adopt chemistry to plant the method for bolt, again lay pre-embedded bolt, generally need carry out pull-out test, embodiment must be agreed to through design.
5. on cushion cap, hole, then again pre-buried, then be in the milk with High Strength Non-shrinking Filling Material, embodiment must be agreed to through design.
6. can fill a nut, and quantity is many, or pre-embedded bolt there is slightly damaged etc., adopt after chemically-planted steel bar, the concrete way of teeming one deck, object is the tensile strength that increases basic framework and base concrete.
Adopt above-mentioned existing way or technology to solve pre-embedded bolt displacement problem, can increase construction cost, affect the duration etc.
Summary of the invention
The present invention is the deficiency that overcomes above-mentioned prior art or solution, from spreading, prolongation, grafting or supernumerary segment screw rod, consider, the public nail of a kind of crane foundation shape nut and usage are provided, its convenient construction scene is installed, is removed, shorten the duration that hoist is installed, reduce the cost that solves pre-embedded bolt displacement problem.
For achieving the above object, the present invention carries the public nail of crane foundation shape nut and adopts following technological scheme: nail shape nut is comprised of the head of a nail, nail bar and Inner tapped hole, the head of a nail, nail bar become an integral body with Inner hole processing, pitch and the pre-embedded bolt of interior threaded hole match, and the diameter of the head of a nail is greater than the diameter of nail bar.
Preferably, the cross-section area of described nail bar is greater than the cross-section area of pre-embedded bolt.
Preferably, the described head of a nail is polygonal.
Screw thread on nail shape nut is processed into internal thread, and pitch and pre-embedded bolt match.
The usage of the public nail of a kind of crane foundation shape nut, it is characterized in that: the first Placement (usage) is: the nail bar 6 of nail shape nut 1 is connected with pre-embedded bolt 5 through steel plate pad 2, basic framework 4, steel plate pad 2 pads are pressed between nail shape nut 1 and basic framework 4; The second Placement (usage) is: the nail rod end of nail shape nut 1 is connected with pre-embedded bolt 5, and the head of a nail end of nail shape nut 1 is connected with supernumerary segment screw rod 9, and supernumerary segment screw rod 9 is connected with original-pack nut 3 through basic framework 4.
The working principle that the present invention follows closely shape nut be with two kinds of Placements for three kinds of situations carry out pre-embedded bolt because of displacement short spreading, prolongation, grafting or the supernumerary segment screw rod of a joint.
The first Placement is: with the head of a nail of nail shape nut, replace original-pack nut, nail bar has replaced that section of pre-embedded bolt of a joint short.The nail bar of nail shape nut is connected with pre-embedded bolt through steel plate pad, basic framework, and steel plate pad pad is pressed between nail shape nut and basic framework.This Placement is mainly for two kinds of situations, namely after pre-embedded bolt position displacement, can only fill the situation of a nut, and after pre-embedded bolt position displacement, can not fill nut and the situation near apart from basic framework top.
The second Placement is: with supernumerary segment screw rod, replaced that section of pre-embedded bolt of a joint short, with nail shape nut, replaced welding, pre-embedded bolt has been docked to the risk of high temperature reduction steel intensity while having avoided welding with supernumerary segment screw rod.One end of nail shape nut is connected with pre-embedded bolt, and the other end is connected with supernumerary segment screw rod, and supernumerary segment screw rod is connected with original-pack nut through basic framework.This Placement is mainly for not filling nut and the situation far away apart from basic framework top after pre-embedded bolt position displacement.
Above-mentioned two kinds of Placements must meet a common cover tooth principle, follow closely exactly shape spiro cap on pre-embedded bolt or be enclosed within length on supernumerary segment screw rod and must not be less than 2.5 times of original-pack nut length, namely must not be less than the length that has been equivalent to overlap two and half original-pack nuts, to guarantee the stressed requirement that reaches.
beneficial effect
1. convenient construction scene is installed, is removed hoist, has shortened the time of processing pre-embedded bolt displacement problem, the duration of having guaranteed equipment installation, can shift to an earlier date spare parts for conventional Hoisting Machinery.
2. except for construction hoist tool equipment, also can be used for workshop, factory building, Experimental Base etc., the pre-embedded bolt of large-sized power plant, or the place of inconvenience replacing bolt or screw rod, have versatility.
3. effectively reduce the cost of processing pre-embedded bolt displacement problem.
Accompanying drawing explanation
Fig. 1 is existing crane foundation framework schematic diagram.
Fig. 2 is that crane foundation framework links schematic diagram with normal pre-embedded bolt.
Fig. 3 is the structural representation before crane foundation framework and problem pre-embedded bolt of the present invention are processed.
Fig. 4 links schematic diagram with problem pre-embedded bolt of the present invention after tearing the thickness that subtracts basic framework open.
Fig. 5 is that the present invention processes the structural representation after problem pre-embedded bolt.
Fig. 6 is the structural representation that the present invention follows closely shape nut (hexagon nut shape).
In figure: 1. nail shape nut, 2. pad, 3. original-pack nut, 4. basic framework, 5. pre-embedded bolt, the 6. head of a nail, 7. nail bar, 8. interior threaded hole, 9. supernumerary segment screw rod, the total length of H. nail shape nut, the length of h. nail bar, the diameter of R. nail bar, the diameter of r. Inner tapped hole.
A. the normotopic situation of pre-embedded bolt, B. after pre-embedded bolt position displacement, can only fill the situation of a nut, C. after pre-embedded bolt position displacement, can not fill nut and the situation near apart from basic framework top, after D. pre-embedded bolt position displacement, can not fill nut and the situation far away apart from basic framework top.
Embodiment
Below in conjunction with the drawings and specific embodiments, content of the present invention is elaborated.
Described nail shape nut forms by following closely the head of a nail of shape nut, the nail bar of nail shape nut and the Inner screw thread of body, and the head of a nail of nail shape nut and the nail bar of nail shape nut and the Inner screw thread of body are processed into an integral body.Screw thread on nail shape nut is processed into internal thread, and pitch and pre-embedded bolt match.The sharp processing of nail shape nut becomes screw, and the head of a nail diameter of nail shape nut is greater than the nail shank diameter of nail shape nut, and the net sectional area of the nail bar of nail shape nut is greater than the sectional area of pre-embedded bolt, and the head of a nail of nail shape nut is processed into Hexagon.The Placement of nail shape nut has two kinds, and the first Placement is: the nail bar of nail shape nut is connected with pre-embedded bolt through steel plate pad, basic framework, and steel plate pad pad is pressed between nail shape nut and basic framework; The second Placement is: one end of nail shape nut is connected with pre-embedded bolt, and the other end is connected with supernumerary segment screw rod, and supernumerary segment screw rod is connected with original-pack nut through basic framework.
Screw thread on nail shape nut is processed into internal thread, and pitch and pre-embedded bolt match.
The sharp processing of nail shape nut becomes screw, and the head of a nail diameter of nail shape nut is greater than the nail shank diameter of nail shape nut, and the net sectional area of the nail bar of nail shape nut is greater than the sectional area of pre-embedded bolt, and the head of a nail of nail shape nut is processed into Hexagon.
Described steel plate pad is made into by punching in the middle of rectangular steel plates.
Described original-pack nut, basic framework, pre-embedded bolt are all parts or the accessories that lifting equipment carries.
The Placement of nail shape nut has two kinds, and the first Placement is: the nail bar of nail shape nut is connected with pre-embedded bolt through steel plate pad, basic framework, and steel plate pad pad is pressed between nail shape nut and basic framework; The second Placement is: one end of nail shape nut is connected with pre-embedded bolt, and the other end is connected with supernumerary segment screw rod, and supernumerary segment screw rod is connected with original-pack nut through basic framework.
As shown in Figure 5, Figure 6, the public nail shape nut in a kind of Hoisting Machinery basis, it is characterized in that following closely shape nut 1 is comprised of the head of a nail 6, nail bar 7 and Inner tapped hole 8, the head of a nail 6, nail bar 7 and Inner tapped hole 8 are processed into an integral body, the pitch of interior threaded hole 8 and pre-embedded bolt 5 match, and the diameter of the head of a nail 6 is greater than the diameter of nail bar 7.
Preferably, the cross-section area of nail bar 7 is greater than the cross-section area of pre-embedded bolt 5, that is: π (R/2)
2-π (r/2)
2> π (r/2)
2, R > 2r.
Preferably, the head of a nail 6 is that hexagon is capable, can be also triangle or other polygonals.
Pad 2 is made by punching in the middle of rectangular steel plates, and aperture is slightly larger than the diameter R of nail bar 7.
Original-pack nut 3, basic framework 4, pre-embedded bolt 5 are that lifting equipment carries accessory.
The Placement of nail shape nut 1 has two kinds, and the first Placement is: the nail bar 6 of nail shape nut 1 is connected with pre-embedded bolt 5 through steel plate pad 2, basic framework 4, and steel plate pad 2 pads are pressed between nail shape nut 1 and basic framework 4.The second Placement is: the nail rod end of nail shape nut 1 is connected with pre-embedded bolt 5, and the head of a nail end of nail shape nut 1 is connected with supernumerary segment screw rod 9, and supernumerary segment screw rod 9 is connected with original-pack nut 3 through basic framework 4.
When selecting nail shape nut 1, need to meet with the tooth principle of trapping, that is: nail shape nut 1 is enclosed within length on pre-embedded bolt 5 and is more than or equal to 2.5 times of original-pack nut 3 length, to guarantee the stressed requirement that reaches.
B situation, nail bar 6 length of nail shape nut 1 are more than or equal to 1.5 times of original-pack nut 3 length, adopt first kind of way to connect.
C situation, nail bar 6 length of nail shape nut 1 be more than or equal to dead band length (distances at basic framework 4 upper surfaces and pre-embedded bolt 5 tops) and original-pack nut 3 length 2.5 times and, employing first kind of way connects.
D situation, the total length H of nail shape nut 1 is more than or equal to the length of 5 times of original-pack nuts 3, adopts the second way to connect.
In real work, the reaming of basic framework 4 is all to complete at the construction field (site), the hole of soon pre-embedded bolt 5 being installed on basic framework 4 is expanded to R from original r, the general mode reaming that adopts acetylene to blow, the periphery after basic framework 4 reamings may be annealed, for making the intensity of hole periphery reach requirement, when B situation and C situation, while adopting first kind of way to connect, used steel plate pad 2, as shown in Figure 5.
In addition, except construction with Hoisting Machinery need to do anchor bolt pre-buried, also have other various embedded parts of building Inner.As: the pre-embedded bolt of doing for large-sized power plants such as workshop, factory building, Experimental Bases, if while there is similar problem, also can use this nail shape nut to process, so we are when design diagram, the basic framework figure using is exactly power equipment frame diagram, as shown in Figure 1.
The public nail of crane foundation of the present invention shape nut, processing measure or the way designing when tower crane foundation built-in bolt goes wrong, therefore gains the name exactly.It exactly like a rivet or screw, although function has duality, take the function of nut as main, be therefore defined as: nail shape nut.
Claims (5)
1. the public nail of a crane foundation shape nut, it is characterized in that: nail shape nut (1) is comprised of the head of a nail (6), nail bar (7) and Inner tapped hole (8), the head of a nail (6), nail bar (7) and Inner tapped hole (8) are processed into an integral body, the pitch of interior threaded hole (8) and pre-embedded bolt (5) match, and the diameter of the head of a nail (6) is greater than the diameter of nail bar (7).
2. the public nail of crane foundation according to claim 1 shape nut, is characterized in that: the cross-section area of described nail bar (7) is greater than the cross-section area of pre-embedded bolt (5).
3. the public nail of crane foundation according to claim 1 shape nut, is characterized in that: the described head of a nail (7) is polygonal.
4. the public nail of crane foundation according to claim 1 shape nut, is characterized in that: the screw thread on nail shape nut is processed into internal thread, and pitch and pre-embedded bolt match.
5. the usage of the public nail of crane foundation shape nut, it is characterized in that: the first Placement is: the nail bar 6 of nail shape nut 1 is connected with pre-embedded bolt 5 through steel plate pad 2, basic framework 4, steel plate pad 2 pads are pressed between nail shape nut 1 and basic framework 4; The second Placement is: the nail rod end of nail shape nut 1 is connected with pre-embedded bolt 5, and the head of a nail end of nail shape nut 1 is connected with supernumerary segment screw rod 9, and supernumerary segment screw rod 9 is connected with original-pack nut 3 through basic framework 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186834.6A CN103953634B (en) | 2014-05-06 | 2014-05-06 | Crane foundation public nail shape nut and usage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186834.6A CN103953634B (en) | 2014-05-06 | 2014-05-06 | Crane foundation public nail shape nut and usage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103953634A true CN103953634A (en) | 2014-07-30 |
| CN103953634B CN103953634B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410186834.6A Active CN103953634B (en) | 2014-05-06 | 2014-05-06 | Crane foundation public nail shape nut and usage |
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| Country | Link |
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| CN (1) | CN103953634B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6012763A (en) * | 1996-10-03 | 2000-01-11 | Anchor Bolt & Screw Company | Trailer door fastener |
| CN201687209U (en) * | 2010-04-13 | 2010-12-29 | 刘娟勇 | T-shaped pre-embedded bolt of concrete wall hanging module |
| CN201751535U (en) * | 2010-06-29 | 2011-02-23 | 武汉科技大学 | Glass fiber plastic anchor bar with a metal sleeve nut |
| CN102444209A (en) * | 2011-09-30 | 2012-05-09 | 中国二十二冶集团有限公司 | Building steel-column foundation lengthening bolt and lengthening method thereof |
| CN204298697U (en) * | 2014-12-08 | 2015-04-29 | 重庆起重机厂有限责任公司 | A kind of crane runway backing plate levelling gear |
-
2014
- 2014-05-06 CN CN201410186834.6A patent/CN103953634B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6012763A (en) * | 1996-10-03 | 2000-01-11 | Anchor Bolt & Screw Company | Trailer door fastener |
| CN201687209U (en) * | 2010-04-13 | 2010-12-29 | 刘娟勇 | T-shaped pre-embedded bolt of concrete wall hanging module |
| CN201751535U (en) * | 2010-06-29 | 2011-02-23 | 武汉科技大学 | Glass fiber plastic anchor bar with a metal sleeve nut |
| CN102444209A (en) * | 2011-09-30 | 2012-05-09 | 中国二十二冶集团有限公司 | Building steel-column foundation lengthening bolt and lengthening method thereof |
| CN204298697U (en) * | 2014-12-08 | 2015-04-29 | 重庆起重机厂有限责任公司 | A kind of crane runway backing plate levelling gear |
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| Publication number | Publication date |
|---|---|
| CN103953634B (en) | 2016-08-17 |
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Effective date of registration: 20170920 Address after: 650000 Yunnan Province Economic Development Zone of Kunming city forest road No. 188 Patentee after: Yunnan Construction Investment Holding Group Co., Ltd. Address before: Economic and Technological Development Zone Information Industry Base in Yunnan province Kunming city forest road 650501 No. 188 Patentee before: Yunnan Construction Engineering Group Co., Ltd. |
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Effective date of registration: 20180321 Address after: No. 1759, Yulong Road, Guandu District, Kunming, Yunnan Patentee after: Yunnan construction investment Aviation Construction Co., Ltd. Address before: 650000 Yunnan Province Economic Development Zone of Kunming city forest road No. 188 Patentee before: Yunnan Construction Investment Holding Group Co., Ltd. |
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