CN208586607U - A kind of casing center positioning device - Google Patents
A kind of casing center positioning device Download PDFInfo
- Publication number
- CN208586607U CN208586607U CN201821145829.0U CN201821145829U CN208586607U CN 208586607 U CN208586607 U CN 208586607U CN 201821145829 U CN201821145829 U CN 201821145829U CN 208586607 U CN208586607 U CN 208586607U
- Authority
- CN
- China
- Prior art keywords
- ruler
- cutting ferrule
- tooth plate
- swing tooth
- casing center
- 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.)
- Active
Links
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model provides a kind of casing center positioning device, belongs to construction field of tool.Its technical solution are as follows: including a pair of hinged telescopic ruler；Telescopic ruler includes the cutting ferrule that cross section is rectangle, swing tooth plate A and swing tooth plate B are socketed with inside cutting ferrule both ends, cutting ferrule middle position is provided with gear by shaft, one end swing tooth plate A of a pair of of telescopic ruler is hingedly arranged, the other end is arranged in corresponding cutting ferrule and is provided with rack gear, and the one end swing tooth plate B is socketed in inside cutting ferrule and is provided with the rack gear engaged with gear, the other end is arranged on the outside of cutting ferrule；Cutting ferrule side middle position is provided with positioning sleeve ruler.The utility model has the following beneficial effects: structure is simple, and it is easy to use, it can quickly position the position in the casing center of circle.
Description
Technical field
The utility model relates to a kind of construction field of tool more particularly to a kind of casing center positioning devices.
Background technique
Currently, pile foundation engineering construction in using Spiral digging machine construct it is very common, Spiral digging machine construction when usually need using
Casing carries out retaining wall, and determining for pile foundation engineering stake position needs to carry out by determining the upper top surface center of circle of casing, since casing is revolving
It is internal after digging machine construction to be hollowed out, only look for the position for being probably the center of circle to be positioned when often positioning, so that positioning
Often it is not allowed, leads to pile foundation position deviation, or even influence construction quality.
Utility model content
It is easy to use the purpose of this utility model is to provide a kind of structure is simple, it can quickly position the casing center of circle
The casing center positioning device of position.
The utility model is realized by following measure:
A kind of casing center positioning device, which is characterized in that including a pair of hinged telescopic ruler；
The telescopic ruler includes the cutting ferrule that cross section is rectangle, be socketed with inside the cutting ferrule both ends swing tooth plate A and
Swing tooth plate B, the cutting ferrule middle position are provided with gear, the swing tooth plate A of a pair of telescopic ruler by shaft
One end is hingedly arranged, the other end is arranged in the corresponding cutting ferrule and is provided with rack gear, the socket of the one end the swing tooth plate B
Inside the cutting ferrule and the rack gear engaged with the gear, other end setting are provided on the outside of the cutting ferrule, the activity
The notch for accommodating the rack gear of the swing tooth plate B is offered on tooth plate A, is offered described in receiving on the swing tooth plate B
The notch of the rack gear of swing tooth plate A.
Cutting ferrule side middle position is provided with positioning sleeve ruler, and the positioning sleeve ruler is for determining casing center location.
According to theorem of diameter perpendicular to a chord inference: the perpendicular bisector of string by the center of circle, and divide equally this string pair arc, into one
Step reasoning show that the perpendicular bisector intersection point of round any two strings is the center of circle (theorem of diameter perpendicular to a chord is the prior art, and details are not described herein),
Under the action of the gear and the rack gear, the swing tooth plate B certain length, the swing tooth plate A flexible length are pulled
Degree is equal with the swing tooth plate B collapsing length, and the positioning sleeve ruler on the cutting ferrule is always positioned in the telescopic ruler
Between position, the intersection point of the positioning sleeve ruler on telescopic ruler described in two sides is the casing center of circle.
The specific feature of the utility model is also:
The positioning sleeve ruler includes inner sleeve ruler and housing ruler, and housing ruler one end is fixed at the cutting ferrule side,
The inner sleeve ruler is socketed with inside the housing ruler other end.
The swing tooth plate B is located at one end lower end surface outside the cutting ferrule and is provided with U-shaped buckle, and the U-shaped snaps through
Shaft A is fixed on the swing tooth plate B.
One end the swing tooth plate A of a pair of telescopic ruler is hingedly arranged by rotating shaft C, and the rotating shaft C upper end is set
Rounded tabs are equipped with, the rotating shaft C lower end is provided with the U-shaped buckle, and the U-shaped buckle is for fixing the positioning device
On the casing side wall.
In use, first the U-shaped buckle of the rotating shaft C lower end is fixed on casing barrel, the telescopic is pulled
Ruler adjusts telescopic ruler length described in two sides, the U-shaped buckle for the lower end surface tooth plate B of stretching described in two sides is fixed on described
On casing barrel, the positioning sleeve ruler length is adjusted, the intersection point of the inner sleeve ruler of positioning sleeve ruler described in two sides is casing center of circle institute
In position.
The utility model has the following beneficial effects: structure is simple, and it is easy to use, it can quickly position the position in the casing center of circle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the structural schematic diagram of the utility model embodiment.
Fig. 3 is the structural schematic diagram that side cutting ferrule and positioning sleeve ruler are omitted in the utility model embodiment.
Fig. 4 is the partial enlarged view in the portion A in Fig. 3.
Fig. 5 is the usage state diagram of the utility model embodiment.
Wherein, appended drawing reference are as follows: 1, positioning sleeve ruler；101, housing ruler；102, inner sleeve ruler；2, swing tooth plate A；3, movable teeth
Plate B；4, cutting ferrule；5, rotating shaft C；6, rack gear；7, gear；8, U-shaped buckles；9, casing.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
Referring to Fig. 1, a kind of casing center positioning device, including a pair of hinged telescopic ruler；
Referring to Fig. 1, Fig. 2 and Fig. 4, telescopic ruler includes the cutting ferrule (4) that cross section is rectangle, cutting ferrule (4) both ends internal sleeve
It is connected to swing tooth plate A(2) and swing tooth plate B(3), cutting ferrule (4) middle position is provided with gear (7) by shaft, and a pair is flexible
Covering the swing tooth plate A(2 of ruler) one end is hingedly arranged, the other end is arranged in corresponding cutting ferrule (4) and is provided with rack gear (6),
Swing tooth plate B(3) one end is socketed in cutting ferrule (4) inside and is provided with the rack gear (6) engaged with gear (7), other end setting exists
On the outside of cutting ferrule (4), swing tooth plate A(2) on offer accommodate swing tooth plate B(3) rack gear (6) notch, swing tooth plate B(3)
On offer accommodate swing tooth plate A(2) rack gear (6) notch.
Referring to fig. 2, cutting ferrule (4) side middle position is provided with positioning sleeve ruler (1), and positioning sleeve ruler (1) is for determining casing
Center location.
Referring to Fig. 1 and 3, according to theorem of diameter perpendicular to a chord inference: the perpendicular bisector of string divides this string institute equally by the center of circle
Pair arc, further reasoning show that the perpendicular bisector intersection point of round any two strings is that (theorem of diameter perpendicular to a chord is the prior art, herein in the center of circle
Repeat no more), under the action of gear (7) and rack gear (6), pull swing tooth plate B(3) certain length, swing tooth plate A(2) it stretches
The length of contracting is equal with swing tooth plate B(3) collapsing length, and the positioning sleeve ruler (1) on cutting ferrule (4) is always positioned among telescopic ruler
The intersection point of position, the positioning sleeve ruler (1) on the telescopic ruler of two sides is the casing center of circle.
Referring to Fig. 3, positioning sleeve ruler (1) includes inner sleeve ruler (102) and housing ruler (101), and the fixation of housing ruler (101) one end is set
It sets and is socketed with inner sleeve ruler (102) inside cutting ferrule (4) side, housing ruler (101) other end.
Referring to fig. 2, swing tooth plate B(3) it is located at cutting ferrule (4) external one end lower end surface and is provided with U-shaped buckle (8), U-shaped buckle
(8) swing tooth plate B(3 is fixed on by shaft A) on.
Referring to fig. 2, the swing tooth plate A(2 of a pair of of telescopic ruler) one end is hingedly arranged by rotating shaft C (5), in rotating shaft C (5)
End is provided with rounded tabs, and rotating shaft C (5) lower end is provided with U-shaped buckle (8), and U-shaped buckle (8) is for positioning device to be fixed on
Casing, on side wall.
Referring to Fig. 5, in use, first the U-shaped buckle (8) of rotating shaft C (5) lower end is fixed on casing (9) barrel, pulling is stretched
Contracting set ruler, adjust two sides telescopic ruler length, by two sides stretch the lower end surface tooth plate B U-shaped buckle (8) be fixed on casing (9) cylinder
On wall, positioning sleeve ruler (1) length is adjusted, the intersection point of the inner sleeve ruler (102) of two sides positioning sleeve ruler (1) is casing (9) center of circle institute
In position.
Technical characteristic of the utility model without description can realize that details are not described herein by or using the prior art,
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the those of ordinary skill in domain is made in the essential scope of the utility model, also should belong to
The protection scope of the utility model.
Claims (4)
1. a kind of casing center positioning device, which is characterized in that including a pair of hinged telescopic ruler；
The telescopic ruler includes the cutting ferrule that cross section is rectangle, is socketed with swing tooth plate A and activity inside the cutting ferrule both ends
Tooth plate B, the cutting ferrule middle position are provided with gear, one end the swing tooth plate A of a pair of telescopic ruler by shaft
Hinged setting, the other end are arranged in the corresponding cutting ferrule and are provided with rack gear, and the one end the swing tooth plate B is socketed in institute
State inside cutting ferrule and be provided with the rack gear engaged with the gear, the other end is arranged on the outside of the cutting ferrule；
Cutting ferrule side middle position is provided with positioning sleeve ruler.
2. casing center positioning device according to claim 1, which is characterized in that the positioning sleeve ruler include inner sleeve ruler and
Housing ruler, housing ruler one end are fixed at the cutting ferrule side, are socketed in described inside the housing ruler other end
Cover ruler.
3. casing center positioning device according to claim 1, which is characterized in that the swing tooth plate B is located at the card
It covers external one end lower end surface and is provided with U-shaped buckle, the U-shaped snaps through shaft A and is fixed on the swing tooth plate B.
4. casing center positioning device according to claim 3, which is characterized in that the work of a pair of telescopic ruler
The one end moving tooth plate A is hingedly arranged by rotating shaft C, and the rotating shaft C upper end is provided with rounded tabs, and the rotating shaft C lower end is provided with
The U-shaped buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821145829.0U CN208586607U (en) | 2018-07-19 | 2018-07-19 | A kind of casing center positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821145829.0U CN208586607U (en) | 2018-07-19 | 2018-07-19 | A kind of casing center positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208586607U true CN208586607U (en) | 2019-03-08 |
Family
ID=65541567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821145829.0U Active CN208586607U (en) | 2018-07-19 | 2018-07-19 | A kind of casing center positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208586607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116005668A (en) * | 2023-01-04 | 2023-04-25 | 江苏力迈建设工程有限公司 | Tubular pile positioning device for PCMW (prestressed concrete cylinder pipe) construction method |
-
2018
- 2018-07-19 CN CN201821145829.0U patent/CN208586607U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116005668A (en) * | 2023-01-04 | 2023-04-25 | 江苏力迈建设工程有限公司 | Tubular pile positioning device for PCMW (prestressed concrete cylinder pipe) construction method |
| CN116005668B (en) * | 2023-01-04 | 2023-10-03 | 江苏力迈建设工程有限公司 | Tubular pile positioning device for PCMW (prestressed concrete cylinder pipe) construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208586607U (en) | A kind of casing center positioning device | |
| CN206556936U (en) | A kind of water sampler | |
| CN208002256U (en) | A kind of raw ear and wrist-watch | |
| CN208534931U (en) | One kind is stretched effective locking device and telescoping tube | |
| CN109515036A (en) | A kind of high school mathematics multifunctional drawing tool | |
| CN206904000U (en) | Expansion link and support equipment | |
| US3833012A (en) | Adjustable tent pole | |
| CN211118160U (en) | Water supply and drainage structure of rigid-flexible composite sleeve | |
| CN105708125B (en) | A kind of telescopic lipbrush | |
| CN201667924U (en) | Sanguinovorous dipteral insect collection net | |
| CN208381208U (en) | A kind of steel wire rope fastening device for construction | |
| DE602007012279D1 (en) | NEEDLE SAFETY DEVICE | |
| CN212116463U (en) | Auxiliary tool for pulling branches of saplings | |
| CN209699575U (en) | A kind of fixed device of drill bit cutting machine | |
| CN220228604U (en) | Ground socket | |
| CN207392026U (en) | A kind of municipal works fill up device with interim pitted surface | |
| CN206722747U (en) | A kind of device that ladder can be made more stable | |
| CN102556773A (en) | Flexible winding handle | |
| CN207427725U (en) | A kind of multi-functional shovel converter is pricked | |
| CN204520800U (en) | The broken tumor device of a kind of imbibition type | |
| CN205266396U (en) | Branches of tall trees chain saw | |
| CN205956684U (en) | Novel holder | |
| CN107647822A (en) | The home appliances that can prevent mobile electronic device from breaking | |
| CN219621626U (en) | Bridge pier reinforcing apparatus | |
| CN211301106U (en) | Joint assembly for moxibustion instrument and moxibustion instrument comprising joint assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |