CN202846489U - Pullout tool for screw with broken screwhead - Google Patents
Pullout tool for screw with broken screwhead Download PDFInfo
- Publication number
- CN202846489U CN202846489U CN 201220303949 CN201220303949U CN202846489U CN 202846489 U CN202846489 U CN 202846489U CN 201220303949 CN201220303949 CN 201220303949 CN 201220303949 U CN201220303949 U CN 201220303949U CN 202846489 U CN202846489 U CN 202846489U
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- CN
- China
- Prior art keywords
- broken screw
- instrument
- broken
- pulling out
- type 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 - Lifetime
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
A pullout tool for screws with broken screwheads is in a rod-shaped structure. One end of the pullout tool for screws with screwheads is provided with a flower-shaped hole. A cross section of the flower-shaped hole is gear-shaped. A cross section of the other end of the pullout tool for screws with screwheads is a polygon. The largest diameter of the flower-shaped hole is equal to the diameter of a screw with a broken screwhead, and the smallest diameter of the flower-shaped hole is 1.5-3mm smaller than the diameter of the screw with a broken screwhead. The pullout tool for screws with broken screwheads is simple in structure, capable of pulling out screws with broken screwheads rapidly, and harmless to other components.
Description
Technical field
The utility model relates to the Special repairing tool of a kind of engineering structure and plant equipment, and specifically a kind of broken screw opens the instrument of pulling out.
Background technology
In the transmission system of Protos70 type cigarette machine MAX cigarette making and tipping machine, it is to fix by screw and pressing plate that the transmission shaft in the transmission case and gear are located by connecting.In long-term utilization process, because the effect of being loaded and vibrating screw extraction can occur in the fault of screwed hole.Because gear is mounted in the transmission case, the transmission case front only has a less manhole, can only see the sub-fraction of gear front, and disconnected screw is in the back of gear.Can only use the part of the palpable broken screw of hand, the space is very little, and existing instrument has no idea to put in the taking-up broken screw.Open and pull out so must open transmission case, greatly increased workload.
The utility model content
The utility model purpose is to provide a kind of instrument of pulling out that opens of broken screw, gets the large problem of broken screw workload to solve prior art.
The utility model adopts following technical scheme:
A kind of broken screw opens the instrument of pulling out, integral body is rod shaped structure, one end is equipped with colored type hole, described colored type hole cross section is gear shape, the cross section of the other end is polygon, the maximum gauge in described colored type hole is the diameter of broken screw, the minimum diameter in flower type hole than broken screw diameter little 1.5 to 3mm.
The broken screw that the utility model provides opens the instrument of pulling out, and is simple in structure, can take out fast broken screw and part of damage not.
Description of drawings
Fig. 1 is that broken screw opens and pulls out the tool construction schematic diagram
Fig. 2 is that broken screw opens and pulls out the tool cross sections schematic diagram
Fig. 3 broken screw opens and pulls out the tool work view
The specific embodiment
As shown in Figure 1, a kind of broken screw opens the instrument of pulling out, and integral body is rod shaped structure, the end 1 that broken screw opens the instrument of pulling out is provided with colored type hole 3, it is polygon that broken screw opens the cross section that pulls out the instrument other end 2, and the length in described colored type hole 3 is 20 to 50mm, wherein is preferably 30mm.Described broken screw opens the polygon cross section that pulls out the instrument other end 2 and is quadrangle.
As shown in Figure 2, the cross section in described colored type hole 3 is gear-like, and the maximum gauge 32 in flower type hole 3 equals the diameter of broken screw 4, and the minimum diameter 31 in flower type hole 3 to 3mm, wherein is preferably 2mm than broken screw 4 diameters little 1.5.The profile of tooth wedge angle α of flower type hole 3 cross sections is 60 degree.
As shown in Figure 3, when the screw fracture, broken screw 4 embeds in the gear 6, the colored type hole 3 of broken screw being opened the instrument of pulling out is enclosed within broken screw 4, knock with strength the other end 2 that broken screw opens the instrument of pulling out with the instrument that knocks, disconnected residual screw 4 embedding broken screw is tightly opened in the colored type hole 3 of the instrument of pulling out, then be installed in spanner 7 and unscrew broken screw 4 behind the other end 2 that screw opens the instrument of pulling out and just can take out broken screw 4.
Claims (8)
1. a broken screw opens the instrument of pulling out, described broken screw opens the instrument of pulling out and is rod shaped structure, it is characterized in that, described broken screw opens the instrument of pulling out one for end (1) and is equipped with colored type hole (3), described colored type hole (3) cross section is gear shape, and described broken screw opens and pulls out the instrument other end (2) cross section is polygon.
2. a kind of broken screw opens the instrument of pulling out as claimed in claim 1, it is characterized in that the maximum gauge (32) in described colored type hole (3) equals broken screw (4) diameter.
3. a kind of broken screw opens the instrument of pulling out as claimed in claim 1, the minimum diameter (31) that it is characterized in that described colored type hole (3) less than broken screw (4) diameter 1.5mm to 3mm.
4. a kind of broken screw opens the instrument of pulling out as claimed in claim 1, it is characterized in that described colored type hole (3) minimum diameter (31) is than the little 2mm of broken screw (4) diameter.
5. a kind of broken screw opens the instrument of pulling out as claimed in claim 1, and the profile of tooth wedge angle that it is characterized in that described colored type hole (3) cross section is 60 degree.
6. a kind of broken screw opens the instrument of pulling out as claimed in claim 1, and the length that it is characterized in that described colored type hole (3) is 20 to 5 0mm.
7. a kind of broken screw opens the instrument of pulling out as claimed in claim 1, and the length that it is characterized in that described colored type hole (3) is 30mm.
8. a kind of broken screw opens the instrument of pulling out as claimed in claim 1, it is characterized in that described broken screw opens that to pull out the instrument other end (2) cross section polygon be quadrangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220303949 CN202846489U (en) | 2012-06-26 | 2012-06-26 | Pullout tool for screw with broken screwhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220303949 CN202846489U (en) | 2012-06-26 | 2012-06-26 | Pullout tool for screw with broken screwhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202846489U true CN202846489U (en) | 2013-04-03 |
Family
ID=47977725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220303949 Expired - Lifetime CN202846489U (en) | 2012-06-26 | 2012-06-26 | Pullout tool for screw with broken screwhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202846489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047313A1 (en) * | 2017-09-08 | 2019-03-14 | 河南裕展精密科技有限公司 | Broken-screw extractor |
-
2012
- 2012-06-26 CN CN 201220303949 patent/CN202846489U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047313A1 (en) * | 2017-09-08 | 2019-03-14 | 河南裕展精密科技有限公司 | Broken-screw extractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |