CN201086262Y - Pre-screwing tool for internal ring ball head screw nail - Google Patents
Pre-screwing tool for internal ring ball head screw nail Download PDFInfo
- Publication number
- CN201086262Y CN201086262Y CNU2007200275781U CN200720027578U CN201086262Y CN 201086262 Y CN201086262 Y CN 201086262Y CN U2007200275781 U CNU2007200275781 U CN U2007200275781U CN 200720027578 U CN200720027578 U CN 200720027578U CN 201086262 Y CN201086262 Y CN 201086262Y
- Authority
- CN
- China
- Prior art keywords
- screwdriver
- sleeve
- head
- screw
- screwdriver rod
- 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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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a tool for pre-tightening screw with a six-lobular ball head, which comprises a screwdriver rod, a screwdriver head, and a sleeve arranged outside the screwdriver rod and the screwdriver head, wherein the inner hole of the sleeve can be more accurately sheathed on a screw head to accurately insert the screwdriver heat into a clubs-hole of a screw head. The connection between the sleeve and the screwdriver is achieved according to wedge tension principle by cutting the screwdriver rod into two segments according to the required length, processing the connection portions into crossed bevels with an angle not larger than 5 DEG, matching one end of the step hole of the inner hole of the sleeve with the screw head, matching the other end of the step hole with the screwdriver rod with a clearance not larger than 0.03 mm therebetween, and assembling the crossed bevels of the two segments of the screwdriver to eliminate the clearance, thus assembling the screwdriver and the sleeve as a whole. The utility model has the advantages of simple structure, convenient usage, accurate and rapid operation, etc.
Description
Technical field
The utility model relates to a kind of mechanical assembly tool, particularly a kind of in the plum blossom ball screw tighten erecting tools.
Background technology
We know, have various bolts to connect in the machinery assembling at present, and the small dimension screw needs artificial pre-twisting machinery is tightened before, the phenomenon in the plum blossom hole that have when manually tightening wabbler screw in the bulb that target is little, driver bit is difficult for accurate insertion head of screw.
Summary of the invention
The utility model provides a kind of interior plum blossom ball screw simple in structure, easy to use, quick and accurate to twist instrument in advance for overcoming above-mentioned the deficiencies in the prior art.
The purpose of this utility model is to adopt following technical proposals to realize: the plum blossom ball screw is twisted instrument in advance in a kind of, comprises knife bar and cutter head, is provided with a sleeve at knife bar and cutter head outside.
Described knife bar is formed by two sections, and two sections joints are the staggered form inclined-plane, and bevel angle is less than 5 degree.
Described sleeve endoporus is a shoulder hole, and the one end cooperates with head of screw, and the other end cooperates with screwdriver rod, wherein, with gap, screwdriver rod cooperation place less than 0.03mm.
The utility model employing wabbler screwdriver head outside standard has been installed a sleeve, and the sleeve endoporus can be enclosed within on the head of screw more accurately, realizes that driver bit accurately inserts in the plum blossom hole of head of screw.Sleeve and the principle of having utilized the wedge tensioner being connected of screwdriver, two sections are cut into according to use length in screwdriver rod portion, be processed into the staggered form inclined-plane at joint, bevel angle should be not more than 5 degree, and the sleeve endoporus is a shoulder hole, and an end cooperates with head of screw, the other end cooperates with screwdriver rod, be not more than 0.03mm with gap, screwdriver rod cooperation place, this gap is eliminated on the staggered form inclined-plane of two sections screwdriver ends during by assembling, and screwdriver and sleeve are assembled into one simultaneously.The utlity model has simple in structure, easy to use, quick advantage such as accurate.
Description of drawings
Fig. 1 is the utility model structural representation;
Wherein 1. handle of a knifes, 2. sleeve, 3. plum blossom cutter head, 4. knife bar, 5. staggered form inclined-plane.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, knife bar 4 one ends are connected with handle of a knife 1, the other end is connected with plum blossom cutter head 3, endoporus is the outside that the sleeve 2 of shoulder hole is installed on knife bar 4 and plum blossom cutter head 3, sleeve 2 and the principle of having utilized the wedge tensioner being connected of screwdriver, with 4 ones of screwdriver rods according to using length to be cut into two sections, be processed into staggered form inclined-plane 5 at joint, bevel angle should be not more than 5 degree, and the sleeve endoporus is a shoulder hole, and an end cooperates with head of screw, the other end cooperates with screwdriver rod 4, be not more than 0.03mm with gap, screwdriver rod cooperation place, this gap is eliminated on the staggered form inclined-plane 5 of two sections screwdriver ends during by assembling, and screwdriver and sleeve 2 are assembled into one simultaneously.
Claims (3)
1. the plum blossom ball screw is twisted instrument in advance in one kind, comprises knife bar and cutter head, it is characterized in that: be provided with a sleeve at knife bar and cutter head outside.
2. the plum blossom ball screw is twisted instrument in advance in according to claim 1, and it is characterized in that: described knife bar is formed by two sections, and two sections joints are the staggered form inclined-plane, and bevel angle is less than 5 degree.
3. the plum blossom ball screw is twisted instrument in advance in according to claim 1, and it is characterized in that: described sleeve endoporus is a shoulder hole, and the one end cooperates with head of screw, and the other end cooperates with screwdriver rod, wherein, with gap, screwdriver rod cooperation place less than 0.03mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200275781U CN201086262Y (en) | 2007-09-18 | 2007-09-18 | Pre-screwing tool for internal ring ball head screw nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200275781U CN201086262Y (en) | 2007-09-18 | 2007-09-18 | Pre-screwing tool for internal ring ball head screw nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201086262Y true CN201086262Y (en) | 2008-07-16 |
Family
ID=39633852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200275781U Expired - Fee Related CN201086262Y (en) | 2007-09-18 | 2007-09-18 | Pre-screwing tool for internal ring ball head screw nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201086262Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009360A (en) * | 2010-11-09 | 2011-04-13 | 廖大萍 | Scappling handle cutter |
| CN104619464A (en) * | 2012-07-20 | 2015-05-13 | 埃克特温特股份有限公司 | Gripping socket, wrench and method of use |
-
2007
- 2007-09-18 CN CNU2007200275781U patent/CN201086262Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009360A (en) * | 2010-11-09 | 2011-04-13 | 廖大萍 | Scappling handle cutter |
| CN104619464A (en) * | 2012-07-20 | 2015-05-13 | 埃克特温特股份有限公司 | Gripping socket, wrench and method of use |
| CN104619464B (en) * | 2012-07-20 | 2017-07-07 | 埃克特温特股份有限公司 | Closing sleeve, spanner and application method |
| US9770815B2 (en) | 2012-07-20 | 2017-09-26 | Actuant Corporation | Gripping socket, wrench and method of use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA NATIONAL HEAVY DUTY TRUCK GROUP JINAN POWER Free format text: FORMER OWNER: JINAN TECH CENTER CO., LTD., CHINA HEAVY TRUCK GROUP Effective date: 20100909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 250002 Ji'nan, central city, Shandong hero hill road, No. 165 Patentee after: China National Heavy Duty Truck Group Jinan Power Co., Ltd. Address before: 250002 Ji'nan, central city, Shandong hero hill road, No. 165 Patentee before: Jinan Tech Center Co., Ltd., China Heavy Truck Group |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |