CN202673150U - Dedicated boring tool used for boring on fixed article in building - Google Patents
Dedicated boring tool used for boring on fixed article in building Download PDFInfo
- Publication number
- CN202673150U CN202673150U CN 201220343978 CN201220343978U CN202673150U CN 202673150 U CN202673150 U CN 202673150U CN 201220343978 CN201220343978 CN 201220343978 CN 201220343978 U CN201220343978 U CN 201220343978U CN 202673150 U CN202673150 U CN 202673150U
- Authority
- CN
- China
- Prior art keywords
- boring
- boring bar
- building
- groove
- tool
- 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
Links
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The utility model relates to a dedicated boring tool used for boring on a fixed article in a building. The dedicated boring tool used for boring on the fixed article in the building is composed of a boring bar and a boring cutter, wherein a groove is arranged on the upper end of the boring bar, the upper portion of the groove is provided with a shaft hole which penetrates through the boring bar along the radial direction, a hinge pin is fixedly arranged inside the shaft hole, and the upper portion of the boring cutter is sleeved on the hinge pin in movable mode. The dedicated boring tool can bore a reaming hole in a blind hole traditionally arranged in the building, and therefore the space for eversion of limbs on the tail portion of an expansion sleeve is provided. A stage face is formed between the reaming hole and the blind hole, flangings formed by eversion of the limbs are abutted against the stage face so as to convert slide static friction force produced by radial extrusion between the limbs on the tail portion of the expansion sleeve and concrete into axial abutting force on the concrete by the limbs, and therefore drop prevention performance of an expansion bolt is improved greatly, accidents can be avoided effectively and safety performance is improved. In addition, the dedicated boring tool is especially suitable for fixing and installation of articles with heavy weight and having vibration, such as a high-power air conditioner outdoor unit, a ceiling fan and a large-scale signboard support.
Description
Technical field
The utility model relates to drilling tool, particularly a kind of on building the employed Special borer tool of mounting article perforate.
Background technology
Have the method for ground, roof or sidewall mounting article at building now, usually adopt traditional as shown in Figure 9 expansion bolt, when fastening nuts, the outside rollback of screw rod, the bullet of afterbody struts the limb of expansion sleeve afterbody, and limb produced larger radially static extruding force and realizes anti-loose purpose the cinclides inwall under the supporting of bullet.Because the cinclides internal diameter of preboring matches with the diameter of screw rod usually, the amplitude that expansion sleeve afterbody limb can spreading is that deflection is less, and the stiction of itself and the generation of cinclides inwall radial compression power only is present in several line segments of annular distribution, shown in Fig. 9 arrow F.Large or be used for having the occasion of vibrations when load, micro-sliding friction can occur between the hole wall of expansion sleeve and concrete 9, accumulation along with the time, slippage increases, just might cause object to come off security incident occurs because expansion bolt gets loose, so the insider recommend expansion bolt to be used for the objects such as fastening ceiling fan.
The utility model content
Have the defective that on building mounting article exists now for above-mentioned, the utility model provide a kind of on building the employed Special borer tool of mounting article perforate, this Special borer prodigiosin is enough to bore reaming in the building tradition is opened the blind hole of system.
The technical solution of the utility model is as follows:
The employed Special borer tool of mounting article perforate on building, be comprised of boring bar and boring cutter, it is characterized in that: the upper end of described boring bar has groove, and the top of groove has the axis hole that radially runs through boring bar, in the axis hole bearing pin is housed fixedly, the top kink of boring cutter is on this bearing pin.Like this, when the boring bar High Rotation Speed, the lower end of boring cutter produces under the driving of centrifugal force outwards opens away from the active force of axis, and boring cutter lower end blade strikes off gradually the concrete around it and enlarges gradually the aperture, finally forms reaming.
The polygonal cylinder clamping part for the clamping of drilling tool chuck anti-rotation is made in the bottom of described boring bar.
Described groove can be rectangular channel, and the notch of this groove is positioned at a side of end face and the boring bar of boring bar.Also can be right-angled trapezium groove short in the foreign minister, the notch of this groove be positioned at a side of boring bar.The boring tool is when being admitted to the above-mentioned blind hole of having opened, and boring cutter is embedded in the groove, and during the boring bar High Rotation Speed, boring cutter throws away from the notch of boring bar side.
Be shaped with bulge loop one on the polygonal cylinder of described boring bar bottom, prevent that boring bar from deviating from order to cooperate with the drilling tool chuck.
Technical scheme provided by the utility model, owing to boring reaming in the blind hole of opening system in the building tradition, for the outside turnover of the limb of expansion sleeve afterbody provides the space, form step surface between this reaming and the blind hole, the flange that limb outwards turns down formation colludes and is butted on this step surface, the slip stiction that is produced by radial compression power between the limb of expansion sleeve afterbody and the concrete is become limb axially to be colluded to power concrete, because axially collude to power much larger than stiction radially, greatly improved the anticreep performance of expansion bolt, prevent that object from falling, can effectively avoid accident to occur, improve security performance, be particularly suitable for Heavy Weight and have the object of vibrations to fix, such as large power air-conditioned off-premises station, ceiling fan, installing and fixing of the objects such as large board support.
Description of drawings
Fig. 1 is the utility model Special borer tool embodiment shape figure;
Fig. 2 is A-A sectional view among Fig. 2;
Fig. 3 is another embodiment shape of the utility model Special borer tool figure;
Fig. 4 is B-B sectional view among Fig. 3;
Fig. 5 is C-C sectional view among Fig. 3;
Fig. 6 is the state diagram when opening fully of Fig. 3 embodiment boring bar;
Fig. 7 is the reaming shape figure of Fig. 3 embodiment bore hole first step when finishing;
Fig. 8 is the reaming shape figure of Fig. 3 embodiment bore hole second step when finishing;
Fig. 9 is traditional expansion bolt anticreep force diagram;
Figure 10 is the reaming expansion bolt anticreep force diagram that utilizes the utility model to open;
Figure 11 is the drilling tool three-jaw chuck structural representation that cooperates with the utility model.
Description of symbols among the figure: expansion sleeve limb 4, boring tool 6, boring bar 61, polygonal cylinder 611, bulge loop 612, bearing pin 62, boring cutter 63, groove 64, top board 65, the object 8 that is fixed, concrete 9, blind hole 91, reaming 92, step surface 93.
The specific embodiment
The utility model Special borer tool is suitable for the new cinclides boring method of a kind of mounting article, and the method may further comprise the steps:
A, get out the blind hole 91 that diameter matches with the expansion bolt external diameter by conventional method;
B, at change the outfit this Special borer tool and stretch to the bottom of above-mentioned blind hole of drilling tool, this Special borer tool is when High Rotation Speed, the boring cutter of its head outwards opens under centrifugal action gradually, bore diameter in the bottom of above-mentioned blind hole greater than the reaming 92 of above-mentioned blind hole diameter, reaming and blind hole intersection form step surface 93;
C, expansion bolt is inserted in the above-mentioned blind hole 91 in the usual way;
D, install the object 8 that is fixed in the outer end of expansion bolt;
E, after putting spring washer, plain washer, the screw rod outer end screws nut with spanner, in the process that screws, screw rod tail pushes the limb 4 of expansion sleeve afterbody outwardly-bent gradually gradually, form at last flange, this flange is colluded be butted on the step surface 93 of reaming 92 and blind hole 91 intersections, the object 8 that is fixed this moment is namely firmly installed, as shown in figure 10.
Special borer tool 6 described in the utility model is embodiment as shown in Figure 1 and Figure 2, formed by boring bar 61 and boring cutter 63, the upper end of boring bar has rectangular recess 64, the groove depth of this groove is greater than the radius of the boring bar diameter less than boring bar, its notch is positioned at a side of end face and the boring bar of boring bar, the top of groove has the axis hole that radially runs through boring bar, and the axis of this axis hole and the axis of boring bar be quadrature at grade.In the axis hole bearing pin 62 is housed fixedly, the top kink of boring cutter 63 is on this bearing pin.The boring tool is when being admitted to the above-mentioned blind hole of having opened, boring cutter is embedded in the groove, when the boring bar High Rotation Speed, the lower end of boring cutter produces under the driving of centrifugal force outwards opens away from the active force of boring bar axis, boring cutter lower end blade strikes off gradually the concrete around it and enlarges gradually the aperture, finally forms reaming 92.In order to make drilling tool can drive the boring bar rotation, four side column bodies, 611 clamping parts for the clamping of drilling tool chuck anti-rotation are made in the bottom of boring bar.
As another embodiment, such as Fig. 3-shown in Figure 6, the Special borer tool 6 that the method for above-mentioned mounting article is required, formed by boring bar 61 and boring cutter 63, the diameter of boring cutter is substantially equal to the radius of boring bar, upper end near the boring bar end face has short right-angled trapezium groove 64 in the foreign minister, and the notch of this groove is positioned at a side of boring bar.The groove depth of this groove is greater than the radius of the boring bar diameter less than boring bar, and the top of groove has the axis hole that radially runs through boring bar, and the axis of this axis hole and the axis of boring bar be quadrature at grade.In the axis hole bearing pin 62 is housed fixedly, the top kink of boring cutter 63 can freely rotate around bearing pin it at this bearing pin.The boring tool is when being admitted to the above-mentioned blind hole of having opened, and boring cutter is embedded in the groove.Enlarging the aperture with this boring tool needs in two steps, and the first step is when the boring tool is admitted to the blind hole bottom, the boring bar High Rotation Speed, control before and after the drilling tool motionlessly, boring cutter throws away and strikes off gradually concrete around it from the notch of boring bar side, forms the as shown in Figure 7 inverted round stage cross section in hole; Second one, controlling drilling tool slowly pulls back, among Fig. 6 shown in the arrow, at this moment the boring cutter back is resisted against the boring bar top and is not cut formed top board 65, the boring cutter front portion is struck off the concrete of inverted round stage chamber land portions gradually, finally form the as shown in Figure 8 reaming 92 of square-section, reach the purpose that forms step surface 93.Then,, boring cutter is fallen back in the right-angled trapezium groove up with the notch of the right-angled trapezium groove of boring bar and push ahead drilling tool, the boring tool can be withdrawed from.
Because present embodiment 2 has the action of a post-tensioning drilling tool in enlarging the aperture process, produce the active force that the boring tool separates with drilling tool.In order to prevent that the boring tool from dropping in the hole, the polygonal cylinder 611 in described boring bar bottom is shaped with bulge loop 612 one, correspondingly, drives the deep-slotted chip breaker 71 that system matches in three-jaw chuck 7 inboards of drilling tool, as shown in figure 11.When three-jaw chuck clamped boring bar, bulge loop 612 just was snapped in the deep-slotted chip breaker 71 of chuck, and both cooperations can prevent that boring bar breaks away from drilling tool.
Claims (5)
1. employed Special borer tool of mounting article perforate on building, formed by boring bar (61) and boring cutter (63), it is characterized in that: the upper end of described boring bar (61) has groove (64), the top of groove (64) has the axis hole that radially runs through boring bar, in the axis hole bearing pin (62) is housed fixedly, the top kink of boring cutter (63) is on this bearing pin (62).
2. the employed Special borer tool of mounting article perforate on building as claimed in claim 1 is characterized in that: polygonal cylinder (611) for the clamping of drilling tool chuck anti-rotation is made as clamping part in the bottom of described boring bar (61).
As described in claim 2 or 3 on building the employed Special borer tool of mounting article perforate, it is characterized in that: described groove (64) is rectangular channel, the notch of this groove is positioned at a side of end face and the boring bar of boring bar.
As described in claim 2 or 3 on building the employed Special borer tool of mounting article perforate, it is characterized in that: described groove (64) is short right-angled trapezium groove in the foreign minister, and the notch of this groove is positioned at a side of boring bar.
5. the employed Special borer tool of mounting article perforate on building as claimed in claim 1 or 2 is characterized in that: be shaped with one bulge loop (612) on the polygonal cylinder of described boring bar bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343978 CN202673150U (en) | 2012-07-12 | 2012-07-12 | Dedicated boring tool used for boring on fixed article in building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220343978 CN202673150U (en) | 2012-07-12 | 2012-07-12 | Dedicated boring tool used for boring on fixed article in building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673150U true CN202673150U (en) | 2013-01-16 |
Family
ID=47494061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220343978 Expired - Fee Related CN202673150U (en) | 2012-07-12 | 2012-07-12 | Dedicated boring tool used for boring on fixed article in building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692981A (en) * | 2019-03-04 | 2019-04-30 | 李吴军 | A kind of Counterboring apparatus of machine workpieces blind hole |
-
2012
- 2012-07-12 CN CN 201220343978 patent/CN202673150U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692981A (en) * | 2019-03-04 | 2019-04-30 | 李吴军 | A kind of Counterboring apparatus of machine workpieces blind hole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102747959A (en) | Method for fixing object and expansion bolt and special borer for method | |
| CN101849084B (en) | Powder-actuated mechanical lock concrete anchor | |
| CN106369031A (en) | Improved expansion bolt | |
| CN105121869A (en) | Anchor | |
| CN202673150U (en) | Dedicated boring tool used for boring on fixed article in building | |
| CN111594241A (en) | Shell expansion anchor rod for soft rock and construction method thereof | |
| CN202673930U (en) | Expansion bolt | |
| CN112983519B (en) | High-pretightening-force anchor rod capable of actively and rapidly realizing three-dimensional stress balance and anchoring method thereof | |
| CN210715466U (en) | Detachable and reusable expansion bolt | |
| CN113251044A (en) | Expansion bolt and mounting method thereof | |
| CN204533107U (en) | Easily detachable expansion bolt | |
| CN212241620U (en) | Reducing anchor bolt hole expanding drill bit | |
| CN111022463B (en) | Embedded fixed expansion bolt | |
| CN219101804U (en) | Screw with expansion function for building | |
| JP2012177222A (en) | Hole-in anchor, and method for mounting and fixing hole-in anchor to existing concrete | |
| CN221401276U (en) | Cut-in type anti-seismic anchor bolt with compensation function | |
| CN111231133B (en) | Reducing anchor bolt hole reaming bit | |
| CN208379853U (en) | A kind of nut embedded type curtain wall panel back of the body bolt | |
| CN111237309A (en) | Novel building expansion bolt and manufacturing, assembling, disassembling and using method thereof | |
| CN217327989U (en) | Expansion bolt | |
| CN220540050U (en) | Shield bottom-expanding hole anchor bolt | |
| CN216044870U (en) | Hammer nail expansion fixing bolt | |
| CN216199638U (en) | High-strength expansion anchor bolt for concrete | |
| CN211667001U (en) | Sleeve gecko with good fixing effect | |
| JP7389302B1 (en) | Anchor bolt replacement method |
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: 20130116 Termination date: 20130712 |