CN203843243U - Hollow sawtooth drill - Google Patents
Hollow sawtooth drill Download PDFInfo
- Publication number
- CN203843243U CN203843243U CN201420206926.1U CN201420206926U CN203843243U CN 203843243 U CN203843243 U CN 203843243U CN 201420206926 U CN201420206926 U CN 201420206926U CN 203843243 U CN203843243 U CN 203843243U
- Authority
- CN
- China
- Prior art keywords
- hollow
- drill
- sawtooth
- barrel
- hole
- 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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- Drilling Tools (AREA)
Abstract
The utility model relates to a hollow sawtooth drill which is used for rubber water seal. The hollow sawtooth drill comprises a drill handle, a section of hollow barrel is arranged at the front end of the drill handle, the lower end of the barrel is conical, a sawtooth blade is arranged at the tip of the barrel along the circumference, and an open hole is formed in the side face of the hollow barrel. An inward flattening surface is arranged on the upper side of the open hole. The hollow sawtooth drill is simple in structure, safe and reliable. Positioning performance of a drill hole is reliable, and drilled holes are smooth and flat. Operation is convenient, labor intensity of operators is relieved, and construction efficiency is improved. The hollow sawtooth drill is movable and suitable for any occasion.
Description
technical field
The utility model relates to a kind of drilling tool, bores for the hollow sawtooth of rubber water sealing boring.
Background technology
In the prior art, Yunfeng power plant dam has bypass damper, water inlet plain batton door, arc door, and water inlet plain batton door has 35 fans. and at least carry out every year 4 fan Jeakage through Sluice Sealants and more change jobs.Water seal is sealed gate and aperture water leakage.Water seal must punching and is fixed by bolts on gate faces plate framework.One fan Jeakage through Sluice Sealant punching, needs 400 eyes (water seal of P type, the water seal of cutter type, adjusting pad) altogether.Water seal bolt hole was that employment is brandished sledgehammer and knocked eye and rush in row punching in the past.While brandishing sledgehammer due to people, hammer point is grasped and is forbidden to be easy to hurt sb.'s feelings, and strength is grasped uneven several lower holes of just going out, and specification, size, size are undesirable, when installation, waste time and energy, and have increased intensity of workers, have reduced operating efficiency.
Utility model content
The purpose of this utility model is to provide a kind of rubber drilling efficiency high for above-mentioned deficiency, and drawbore is smooth, and effective hollow sawtooth bores.
Technical solution of the present utility model is: hollow sawtooth bores, and comprises drillstock, and drillstock front end has one section of hollow cylindrical shell, and cylindrical shell bottom is taper, and there is sawtooth sword cylindrical shell termination along circumference, and hollow cylinder body side surface has open-minded hole.There is inside flattening plane at position, top, open-minded hole.
The utility model has the advantages that: 1, this apparatus structure is simple, safe and reliable.2, jewel hole positioning performance is reliable.3, drilling bore hole is smooth.4, easy to operate, the labour intensity that alleviates operating personnel, improves efficiency of construction.5, there is mobility, be applicable to any place and use.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is Fig. 1 side structure sketch.
Detailed description of the invention
Referring to Fig. 1,2, parts title is as follows: drillstock 1, hollow cylindrical shell 2, taper 3, sawtooth sword 4, the hole 5 of slitting, flattening plane 6.
Referring to Fig. 1,2, hollow sawtooth bores, and comprises drillstock 1, and drillstock 1 front end has one section of hollow cylindrical shell 2 in centre, and hollow cylindrical shell 2 bottoms are taper 3, and there is sawtooth sword 4 hollow cylindrical shell 2 terminations along circumference, hollow cylindrical shell 2 You Huo holes, side 5.
Referring to Fig. 2, there is inside flattening plane 6 at 5 positions, top, hole of slitting.The setting of open-minded hole 5, interior flattening plane 6, is conducive to row and cuts.
The annealing of 45# steel is manufactured, and working portion is zigzag, carries out modifier treatment after processing.
This drill bit mounting clamp is held on electric drill.Fixation.Turn on the power switch, sawtooth sword 4 is aimed at required jewel hole spots localization, exerts oneself downwards gently, gets out required aperture.Carry out by that analogy next hole drill eye.
Claims (2)
1. a hollow sawtooth bores, comprise drillstock (1), it is characterized in that drillstock (1) front end has one section of hollow cylindrical shell (2), hollow cylindrical shell (2) bottom is taper (3), there is sawtooth sword (4) hollow cylindrical shell (2) termination along circumference, You Huo hole, hollow cylindrical shell (2) side (5).
2. bore according to hollow sawtooth claimed in claim 1, there is inside flattening plane (6) at the position, top, hole (5) that it is characterized in that slitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206926.1U CN203843243U (en) | 2014-04-26 | 2014-04-26 | Hollow sawtooth drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206926.1U CN203843243U (en) | 2014-04-26 | 2014-04-26 | Hollow sawtooth drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203843243U true CN203843243U (en) | 2014-09-24 |
Family
ID=51556304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420206926.1U Expired - Fee Related CN203843243U (en) | 2014-04-26 | 2014-04-26 | Hollow sawtooth drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203843243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227735A (en) * | 2018-08-22 | 2019-01-18 | 陕西汉江投资开发有限公司蜀河水力发电厂 | The hollow boring bit and its application method of water seal punching |
-
2014
- 2014-04-26 CN CN201420206926.1U patent/CN203843243U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227735A (en) * | 2018-08-22 | 2019-01-18 | 陕西汉江投资开发有限公司蜀河水力发电厂 | The hollow boring bit and its application method of water seal punching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20170426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |