CN2523560Y - Pneumatic screw-driver structure - Google Patents
Pneumatic screw-driver structure Download PDFInfo
- Publication number
- CN2523560Y CN2523560Y CN 01258461 CN01258461U CN2523560Y CN 2523560 Y CN2523560 Y CN 2523560Y CN 01258461 CN01258461 CN 01258461 CN 01258461 U CN01258461 U CN 01258461U CN 2523560 Y CN2523560 Y CN 2523560Y
- Authority
- CN
- China
- Prior art keywords
- hole
- control valve
- screw
- cutter
- valve opening
- 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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Abstract
A pneumatic screwdriver structure relates to an electrician tool technical field, in particular to a pneumatic screwdriver structure used for screwing all screws. The technical proposal is that an internal hidden hole is additionally communicated between a screw thread hole of a cutter body and a control valve hole; the internal hidden hole is internally connected with a screw; one end of the screw is arranged in a ring trough of an air quantity control valve along the external round. The internal hidden hole of the utility model is arranged between the screw thread hole in the cutter and the control valve hole; the air with a certain pressure presses the screw and pin, etc. to the air quantity control valve, thus ensuring the dropping of the screw and pin, etc. and ensuring the application safety; furthermore, the internal hidden hole is internally hidden in the cutter, the appearance of the whole cutter is nice; furthermore, the sealing performance of the cutter is good and the steering adjustment is convenient.
Description
Technical field:
The utility model relates to electrician's technical field of tools, refers in particular to a kind of pneumatic screw knife structure that is used for the various screws of turn-knob.
Background technology:
Screwdriver is usually used in the various screws of knob, screw; Present structure with regard to screwdriver has varied, as straight screwdriver, Phillips screwdriver; Hand, pneumatic type etc.; For the common structure of the screwdriver of pneumatic type shown in accompanying drawing 1～5, it generally has an adjusting knife bar just to change, the adjusting knob and one that turns to of counter-rotating is regulated the tolerance control valve of rotating speed, when air-flow flows through hole 2 after screwed hole 1 enters, flow in the control valve opening 3 of placing the tolerance control valve, regulate its flow and control rotating speed by the rotation of tolerance control valve, come off for guaranteeing that the tolerance control valve is not interposing at, usually vertical control valve opening 3 is established a hole 5 that communicates with control valve opening 3 on cutter hub, plug a pin in hole 5, the inner termination of this pin is inserted in the annular groove that the tolerance control valve offers along cylindrical; Because the hole 5 of vertical control valve opening 3 is a perforate (directly offering from the cylindrical of cutter hub), so not only influence the attractive in appearance of profile, the also easy safety of deviating to influence use because of pin; In addition, part control valve opening 3 structures being arranged as shown in Figure 5, is a through hole, and its air-tightness is not good; In addition, also be provided with a knob hole 4 near control valve opening 3 places, this hole is used to place adjusting knob; Because the trapezoidal slotted eye of this Kong Weiyi there is no step on it, make that the position of adjusting knob rotation is uncontrollable, be not easy to use.
Summary of the invention:
The purpose of this utility model is to provide a kind of shortcoming that overcomes said structure, its good looking appearance, and air-tightness is good, pneumatic screw driver easy to use, safe.
The utility model is achieved by the following technical solution: the screwed hole of cutter hub and control are communicated with a built-in hole between the valve opening in addition, connection one screw built-in hole in, and this screw one termination places in the annular groove that the tolerance control valve offers along its cylindrical; The screw that connects in the described built-in hole can also be for pin etc.; One obtuse-angulate circular step is arranged on knob hole, and the control valve opening of close knob hole is a blind hole.
Between the screwed hole and control valve opening of the built-in hole of the utility model in cutter hub, the gas with certain pressure is pressed to the tolerance control valve with screw, pin etc., thereby can guarantee coming off of screw, pin etc., guarantees the safety of using; Also because it is built in the cutter hub whole cutter hub good looking appearance; In addition, control the blind hole structure of valve opening, can guarantee the air-tightness of cutter hub effectively; Circular step on the knob hole helps the adjustment of user to turning to.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is further specified:
Accompanying drawing 1 is overlooked partial sectional view for existing structure;
Accompanying drawing 2 is looked partial sectional view for the existing structure master;
Accompanying drawing 3 is that existing structure A-A is to cutaway view;
Accompanying drawing 4 is overlooked partial sectional view for another existing structure;
Accompanying drawing 5 is looked partial sectional view for another existing structure master;
Accompanying drawing 7 is looked partial sectional view for the utility model master.
The specific embodiment:
See accompanying drawing 6,7, the screwed hole 1 of the utility model cutter hub and control are communicated with a built-in hole 6 between the valve opening 3 in addition, connect screws in the built-in hole 6, and this screw one termination places in the annular groove that the tolerance control valve offers along its cylindrical; Prevent that the tolerance control valve from coming off outside the control valve opening 3, guarantees safety; The screws that connect in the described built-in hole 6 can also be for pin etc.; Only need satisfy its termination can prevent that the tolerance control valve from coming off and get final product; In addition, an obtuse-angulate circular step 41 is arranged on the knob hole 4, this step 41 guarantees that the anglec of rotation of the adjusting knob of knob hole 4 can be limited effectively, thereby makes things convenient for the control of user to the cutter head direction of rotation; At the control valve opening 3 near knob hole 4 is a blind hole, can also prevent the leakage of gas, guarantees the safety of use, and the pressure of the interior gas of cutter hub.
When using the utility model, air-flow flows through hole 2 after screwed hole 1 enters, flow in the control valve opening 3 of placing the tolerance control valve, regulate its flow and control rotating speed by the rotation of tolerance control valve, the control of just changeing, reversing of knife bar realizes by adjusting knob, because between the screwed hole 1 and control valve opening 3 of built-in hole 6 in cutter hub, the gas with certain pressure is pressed to the tolerance control valve with screw, pin etc., thereby can guarantee coming off of screw, pin etc., guarantee the safety of using.
Claims (3)
1, a kind of pneumatic screw knife structure, it is characterized in that: be communicated with a built-in hole (6) in addition between screwed hole of cutter hub (1) and the control valve opening (3), connect a screw in the built-in hole (6), this screw one termination places in the annular groove that the tolerance control valve offers along its cylindrical.
2, a kind of pneumatic screw knife structure according to claim 1 is characterized in that: the screw that connects in built-in hole (6) can also be for pin etc.
3, a kind of pneumatic screw knife structure according to claim 1 is characterized in that: an obtuse-angulate circular step (41) is arranged on the knob hole (4), and the control valve opening (3) of close knob hole (4) is a blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258461 CN2523560Y (en) | 2001-12-10 | 2001-12-10 | Pneumatic screw-driver structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258461 CN2523560Y (en) | 2001-12-10 | 2001-12-10 | Pneumatic screw-driver structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2523560Y true CN2523560Y (en) | 2002-12-04 |
Family
ID=33667042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01258461 Expired - Fee Related CN2523560Y (en) | 2001-12-10 | 2001-12-10 | Pneumatic screw-driver structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2523560Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990586A (en) * | 2012-10-11 | 2013-03-27 | 宁波誉信工具制造有限公司 | Impact screwdriver |
-
2001
- 2001-12-10 CN CN 01258461 patent/CN2523560Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990586A (en) * | 2012-10-11 | 2013-03-27 | 宁波誉信工具制造有限公司 | Impact screwdriver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |