CN202748193U - Auxiliary tool for determining gravity center of irregular polygon uniform plate - Google Patents
Auxiliary tool for determining gravity center of irregular polygon uniform plate Download PDFInfo
- Publication number
- CN202748193U CN202748193U CN 201220450857 CN201220450857U CN202748193U CN 202748193 U CN202748193 U CN 202748193U CN 201220450857 CN201220450857 CN 201220450857 CN 201220450857 U CN201220450857 U CN 201220450857U CN 202748193 U CN202748193 U CN 202748193U
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- CN
- China
- Prior art keywords
- steel wire
- shell
- auxiliary tool
- hoisting
- irregular polygon
- 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 discloses an auxiliary tool for determining the gravity center of an irregular polygon uniform plate, which comprises a shell, wherein the shell is internally provided with a winding shaft, and the shell and the winding shaft are fixed through a hinge pin; the winding shaft is provided with one end of a spring piece, and the other end of the spring piece is arranged on the hinge pin; one end of a first steel wire and one end of a second steel wire are arranged on the same diameter of the winding shaft; and a first orifice and a second orifice are arranged on the same diameter of the shell, the other end of the first steel wire penetrates through the first orifice, and the other end of the second steel wire penetrates through the second orifice. The auxiliary tool completely cancelled trail hoisting before hoisting, solves the defect that the trail hoisting is time-consuming and labor-consuming, and is more precise in gravity center determination compared with the method of trail hoisting. Operations can be completed by using the auxiliary tool only, thereby being simple, convenient, easy to master, and applicable to construction site operations, and improves the hoisting efficiency.
Description
Technical field
The utility model belongs to the lifting field, particularly a kind of appurtenance for determining the even plate center of gravity of irregular polygon.
Background technology
At the construction field (site), during the even board member of lifting polygon, at first to determine the centre of gravity place of the even board member of polygon.Commonplace way is to adopt the on-the-spot way of trying to hang to determine the centre of gravity place of the member that hangs at present.
In realizing process of the present utility model, find to exist at least in the prior art following shortcoming and defect:
Prior art generally will repeatedly be tried to hang before lifting component, time-consuming and effort.
The utility model content
The utility model provides a kind of appurtenance for determining the even plate center of gravity of irregular polygon, and the utility model has been saved the time, the man power and material, sees for details hereinafter and describes:
A kind of appurtenance for determining the even plate center of gravity of irregular polygon comprises: shell, be provided with spool in the described shell, and fix by bearing pin between described shell and the described spool; Be provided with an end of spring leaf at described spool; The other end of described spring leaf is arranged on the described bearing pin; Same diameter at described spool is provided with an end of the first steel wire and an end of the second steel wire; Same diameter at described shell is provided with the first aperture and the second aperture, and the other end of described the first steel wire passes from described the first aperture, and the other end of described the second steel wire passes from described the second aperture.
End at described bearing pin also is provided with the talcum pen.
The beneficial effect of the technical scheme that the utility model provides is: this aid has fully phased out the examination before the lifting and has hung, and solved examination and hung the time-consuming deficiency with requiring great effort that causes, and the center of gravity of determining than the method for hanging with examination is more accurate; Only get final product complete operation with this appurtenance, simple and convenient, be easy to grasp, be applicable to the working-yard operation; This aid can directly be determined to calculate mid point, than more convenient with band scale steel tape; Improved lifting efficient.
Description of drawings
The structural representation of a kind of appurtenance for determining the even plate center of gravity of irregular polygon that Fig. 1 provides for the utility model.
Shown in components listed is listed as follows in the accompanying drawing:
1: shell; 2: spool;
3: bearing pin; 4: spring leaf;
5: the first steel wires; 6: the second steel wires;
7: the first apertures; 8: the second apertures.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
For save time, the man power and material, the utility model embodiment has proposed a kind of appurtenance for determining the even plate center of gravity of irregular polygon, referring to Fig. 1, sees for details hereinafter and describes:
A kind of appurtenance for determining the even plate center of gravity of irregular polygon comprises: shell 1, be provided with spool 2 in the shell 1, and fixing by bearing pin 3 between shell 1 and the spool 2; Be provided with an end of spring leaf 4 at spool 2; The other end of spring leaf 4 is arranged on the bearing pin 3; Same diameter at spool 2 is provided with an end of the first steel wire 5 and an end of the second steel wire 6; The other end that is provided with the first aperture 7 and the second aperture 8, the first steel wires 5 at the same diameter of shell 1 passes from the first aperture 7, and the other end of the second steel wire 6 passes from the second aperture 8.
Wherein, be fixed as one by bearing pin 3 between shell 1 and the spool 2, and shell 1 and spool 2 can be done and relatively rotate.
Further, in actual applications in order to make things convenient for the mark mid point, also be provided with the talcum pen at an end of bearing pin 3.
Referring to Fig. 1, the below describes in detail to a kind of principle of work of the appurtenance for determining the even plate center of gravity of irregular polygon, sees for details hereinafter and describes:
During this aid work, the first steel wire 5 and the second steel wire 6 are pulled out, make its end points place the two ends on polygon limit, the first steel wire 5 and the second steel wire 6 are positioned on the same spool 2, and equal in length is pulled out in turnover synchronously, bearing pin 3 must be positioned at the mid point on this limit, during practical application, can be with placing the talcum pen on the bearing pin 3 to carry out mark, this mark i.e. limit mid point for this reason.The center of gravity that just can obtain the even plate of irregular polygon according to mid point and the basic mathematics geometric knowledge on each limit.
In sum, the utility model embodiment provides a kind of appurtenance for determining the even plate center of gravity of irregular polygon, this aid has fully phased out the examination before the lifting and has hung, and solved examination and hung the time-consuming deficiency with requiring great effort that causes, and the center of gravity of determining than the method for hanging with examination is more accurate; Only get final product complete operation with this appurtenance, simple and convenient, be easy to grasp, be applicable to the working-yard operation; This aid can directly be determined to calculate mid point, than more convenient with band scale steel tape; Improved lifting efficient.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, above-mentioned the utility model embodiment sequence number does not represent the quality of embodiment just to description.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. an appurtenance that is used for determining the even plate center of gravity of irregular polygon is characterized in that, comprising: shell (1), be provided with spool (2) in the described shell (1), and fixing by bearing pin (3) between described shell (1) and the described spool (2); Be provided with an end of spring leaf (4) at described spool (2); The other end of described spring leaf (4) is arranged on the described bearing pin (3); Same diameter at described spool (2) is provided with an end of the first steel wire (5) and an end of the second steel wire (6); Same diameter at described shell (1) is provided with the first aperture (7) and the second aperture (8), the other end of described the first steel wire (5) passes from described the first aperture (7), and the other end of described the second steel wire (6) passes from described the second aperture (8).
2. a kind of appurtenance for determining the even plate center of gravity of irregular polygon according to claim 1 is characterized in that, also is provided with the talcum pen at an end of described bearing pin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450857 CN202748193U (en) | 2012-09-06 | 2012-09-06 | Auxiliary tool for determining gravity center of irregular polygon uniform plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450857 CN202748193U (en) | 2012-09-06 | 2012-09-06 | Auxiliary tool for determining gravity center of irregular polygon uniform plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202748193U true CN202748193U (en) | 2013-02-20 |
Family
ID=47707569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220450857 Expired - Fee Related CN202748193U (en) | 2012-09-06 | 2012-09-06 | Auxiliary tool for determining gravity center of irregular polygon uniform plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202748193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840139A (en) * | 2016-12-29 | 2017-06-13 | 深圳众思科技有限公司 | The acquisition methods of fence, device and terminal |
-
2012
- 2012-09-06 CN CN 201220450857 patent/CN202748193U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840139A (en) * | 2016-12-29 | 2017-06-13 | 深圳众思科技有限公司 | The acquisition methods of fence, device and terminal |
| CN106840139B (en) * | 2016-12-29 | 2020-06-02 | 南昌黑鲨科技有限公司 | Electronic fence acquisition method and device and terminal |
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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: 20130220 Termination date: 20130906 |