CN204505126U - A kind of adjustable screw cutter - Google Patents
A kind of adjustable screw cutter Download PDFInfo
- Publication number
- CN204505126U CN204505126U CN201520180273.9U CN201520180273U CN204505126U CN 204505126 U CN204505126 U CN 204505126U CN 201520180273 U CN201520180273 U CN 201520180273U CN 204505126 U CN204505126 U CN 204505126U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- expansion link
- driver bit
- handle
- push 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
Links
Abstract
The utility model relates to a kind of adjustable screw cutter, comprise handle, connecting rod, expansion link and driver bit, handle is threaded with connecting rod, be empty in the middle part of connecting rod, and connecting rod inside is provided with expansion link, driver bit is arranged on the end of expansion link, it also comprises push rod, elastic bumps, spring and button, push rod is arranged on handle inner, push rod is provided with elastic bumps, and the upper end of push rod is connected with button, handle is provided with groove, the plane that elastic bumps is formed higher than described groove, spring housing is contained on expansion link, the utility model structure is simple, easy to operate, and long service life.
Description
Technical field
The utility model relates to machine tools technical field, particularly relates to a kind of adjustable screw cutter.
Background technology
As everyone knows, T shape screwdriver is made up of driver bit and the multiple component such as handle and connecting rod, be specially adapted to dismantle and fastening residing space is very narrow or the screw of the very depths of caving in, in machine work, often need use T shape screwdriver to carry out dismounting and fastening to screw.In production and life, the structure of widely used T shape screwdriver is all generally fixing at present, dismounting and fastening cannot be carried out to the screw being in different depth position by the length of regulating connecting rod, the T-shaped screwdriver often needing workmen to carry multiple different length specification just can complete dismounting and the fastening task being in the screw of different depth position, so not only increase use cost, and increase the labour intensity of workmen, be unfavorable for increasing work efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of Telescopic screwdriver solving the technical problem regulating inconvenience, cutter head easy to wear.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of adjustable screw cutter, comprise handle, connecting rod, expansion link and driver bit, described handle is threaded with connecting rod, be empty in the middle part of described connecting rod, and described connecting rod inside is provided with expansion link, described driver bit is arranged on the end of expansion link, it also comprises push rod, elastic bumps, spring and button, described push rod is arranged on handle inner, described push rod is provided with elastic bumps, and the upper end of push rod is connected with described button, described handle is provided with groove, the plane that described elastic bumps is formed higher than described groove, described spring housing is contained on expansion link,
On the basis of technique scheme, the utility model can also do following improvement:
Further, described driver bit, lower than the terminal surface of connecting rod, adopts the beneficial effect of this step to be ensure when not using, and in driver bit meeting retraction connecting rod, prevents driver bit from damaging;
Further, the external diameter of described driver bit is less than the internal diameter of described connecting rod, adopts the beneficial effect of this step to be ensure driver bit in use, from connecting rod inside out, can play the effect of screwdriver;
Further, it also comprises fixed head, and described fixed head is arranged on connecting rod inside and is positioned at the below of spring, adopts the beneficial effect of this step to be to prevent spring from coming off, makes the utility model lose Telescopic.
The utility model utilizes the cooperation of spring and expansion link; play telescopic action; by the cooperation of elastic bumps, groove and button; can so that stroke that is fixing and control spring; the stroke of expansion link is controlled with this; when not using, driver bit is positioned at connecting rod inside, can play a protective role.
The beneficial effects of the utility model are:
1. the utility model utilizes the cooperation of spring and expansion link, plays telescopic action, can control length of the present utility model;
2. the utility model structure is simple, and cost is low, and result of use is good, can extend the service life of workpiece.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of adjustable screw cutter described in the utility model specific embodiment,
In accompanying drawing, the list of parts representated by each label is as follows:
1, handle, 2, connecting rod, 3, expansion link, 4, driver bit, 5, push rod, 6, elastic bumps, 7, spring, 8, button, 9, groove, 10, fixed head.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
A kind of adjustable screw cutter, comprise handle 1, connecting rod 2, expansion link 3 and driver bit 4, described handle 1 is threaded with connecting rod 2, be empty in the middle part of described connecting rod 2, and described connecting rod 2 inside is provided with expansion link 3, described driver bit 4 is arranged on the end of expansion link 3, it also comprises push rod 5, elastic bumps 6, spring 7 and button 8, it is inner that described push rod 5 is arranged on handle 1, described push rod 5 is provided with elastic bumps 6, and the upper end of push rod 5 is connected with described button 8, described handle 1 is provided with groove 9, the plane that described elastic bumps 6 is formed higher than described groove 9, described spring 7 is sleeved on expansion link 3, described driver bit 4 is lower than the terminal surface of connecting rod 2, and the external diameter of described driver bit 4 is less than the internal diameter of described connecting rod 2,
It also comprises fixed head 10, and described fixed head 10 is arranged on connecting rod 2 inside and is positioned at the below of spring 7;
In use, press the button 8, make elastic bumps 6 be stuck in groove 9, ensure that driver bit 4 can be lifted one's head, when not using, press elastic bumps 6, spring 7 recovers, and driver bit 4 can retraction connecting rod 2 inside.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. an adjustable screw cutter, comprise handle, connecting rod, expansion link and driver bit, described handle is threaded with connecting rod, be empty in the middle part of described connecting rod, and described connecting rod inside is provided with expansion link, described driver bit is arranged on the end of expansion link, it is characterized in that, it also comprises push rod, elastic bumps, spring and button, described push rod is arranged on handle inner, described push rod is provided with elastic bumps, and the upper end of push rod is connected with described button, described handle is provided with groove, the plane that described elastic bumps is formed higher than described groove, described spring housing is contained on expansion link.
2. a kind of adjustable screw cutter according to claim 1, it is characterized in that, described driver bit is lower than the terminal surface of connecting rod.
3. a kind of adjustable screw cutter according to claim 2, is characterized in that, the external diameter of described driver bit is less than the internal diameter of described connecting rod.
4. a kind of adjustable screw cutter according to claim 3, it is characterized in that, it also comprises fixed head, and described fixed head is arranged on connecting rod inside and is positioned at the below of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180273.9U CN204505126U (en) | 2015-03-30 | 2015-03-30 | A kind of adjustable screw cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520180273.9U CN204505126U (en) | 2015-03-30 | 2015-03-30 | A kind of adjustable screw cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204505126U true CN204505126U (en) | 2015-07-29 |
Family
ID=53703130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520180273.9U Expired - Fee Related CN204505126U (en) | 2015-03-30 | 2015-03-30 | A kind of adjustable screw cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204505126U (en) |
-
2015
- 2015-03-30 CN CN201520180273.9U patent/CN204505126U/en not_active Expired - Fee Related
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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: 20150729 Termination date: 20160330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |