CN203362670U - Transmission device of pneumatic tool - Google Patents
Transmission device of pneumatic tool Download PDFInfo
- Publication number
- CN203362670U CN203362670U CN 201320333231 CN201320333231U CN203362670U CN 203362670 U CN203362670 U CN 203362670U CN 201320333231 CN201320333231 CN 201320333231 CN 201320333231 U CN201320333231 U CN 201320333231U CN 203362670 U CN203362670 U CN 203362670U
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- CN
- China
- Prior art keywords
- valve core
- transmission device
- reversing valve
- valve pocket
- changeover valve
- 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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Abstract
Disclosed is a transmission device of a pneumatic tool. The transmission device comprises a reversing valve core, a reversing valve sleeve arranged outside the reversing valve core in a sleeved mode, a back-and-forth valve sleeve arranged on the inner side of the reversing valve core and a back-and-forth rod fixedly connected with the back-and-forth valve sleeve through a fixing structure. A plurality of grooves are formed in the peripheral surface of the reversing valve core, and through holes arranged oppositely are formed in the grooves. The inner side, opposite to the reversing valve core, of the reversing valve sleeve is a smooth peripheral surface. Because the pneumatic transmission grooves are formed in the outer peripheral surface of the reversing valve core, the traditional machining mode that pneumatic transmission grooves are formed in the inner peripheral surface of a reversing valve sleeve is changed, direct die forming can be conducted on the reversing valve sleeve and the reversing valve core, traditional lathing is omitted, machining efficiency is greatly improved, and machining cost is reduced.
Description
Technical field
The utility model relates to a kind of transmission device, especially a kind of air tool transmission device.
Background technique
Pneumatic tool is mainly to utilize pressurized air to drive pneumatic motor and a kind of instrument of external output kinetic energy work, according to its fundamental mode, can be divided into: 1) rotary (eccentric movable vane type) .2) reciprocating (volume piston type) general pneumatic tool is mainly opened by power output, operation form transform portion, intake and exhaust road part, running and is stopped the main bodys such as control section, tool housing, and the pneumatic tool running also must have energy resource supply part, air-filtering and air pressure adjustment part and tool attachment etc. certainly.
Existing air tool transmission device mainly comprises the commutation valve pocket, is arranged on the changeover valve core in the commutation valve pocket and is arranged on the round valve pocket in changeover valve core, by zone of pressure, move to spool to-and-fro motion in the commutation valve pocket, the selector valve cover drives round valve pocket and seesaws, to reach air tool effect.
As shown in Figure 5, Figure 6, the commutation valve pocket of traditional, pneumatic instrument and the gas transmission groove between changeover valve core all are arranged on the inner peripheral surface of commutation valve pocket, this gas transmission groove is to form by Vehicle Processing, after the moulding of selector valve mold, need to increase the operation of one Vehicle Processing groove, both reduced work efficiency and also expended processing cost.
The model utility content
The purpose of this utility model is that work efficiency is high, the pneumatic tool transmission device that Expenses Cost is low in order to solve the existing defect of air tool transmission device in prior art, to provide a kind of production process few.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of air tool transmission device, comprise changeover valve core, be sleeved on the changeover valve core outside the commutation valve pocket, be arranged on the round valve pocket of described changeover valve core inboard and the round bar be fixedly connected with described round valve pocket by fixed structure, as improvement of the present utility model, the side face of described changeover valve core is provided with the multiple tracks groove, is provided with mutual opposed through hole in this groove; Described commutation valve pocket and the opposed inner side surface of described changeover valve core are smooth circumferential surface.
Above-mentioned a kind of air tool transmission device, a side of described changeover valve core also is provided with the axial protuberance extended vertically, is provided with mutual opposed breach on this axial protuberance.
Above-mentioned a kind of air tool transmission device, described fixed structure is hexagon socket head cap screw.
Above-mentioned a kind of air tool transmission device, be provided with gap between the inner side surface of described commutation valve pocket and the outer peripheral surface of described changeover valve core.
Above-mentioned a kind of air tool transmission device, be equipped with through hole on the end face of described commutation valve pocket and side face.
The beneficial effects of the utility model are: this transmission device is arranged on gas transmission groove on the outer peripheral surface of changeover valve core, changed conventional transmission device gas transmission groove has been arranged on to the processing mode on commutation valve pocket inner peripheral surface, commutation valve pocket and the direct mould-forming of changeover valve core get final product, saved traditional Vehicle Processing operation, greatly increase work efficiency, reduced processing cost.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
The structural representation that Fig. 2 is commutation valve pocket in the utility model
The structural representation that Fig. 3 is changeover valve core in the utility model
The sectional view that Fig. 4 is commutation valve pocket in the utility model
The structural representation that Fig. 5 is traditional, pneumatic tool transmission changeover valve core
The sectional view that Fig. 6 is traditional, pneumatic tool transmission commutation valve pocket
Embodiment
Coordinate detailed explanation for making structure characteristic of the present utility model and the effect reached are had further to understand and be familiar with in order to preferred embodiment and accompanying drawing, be described as follows:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of air tool transmission device, comprise changeover valve core 1, be sleeved on changeover valve core 1 outside commutation valve pocket 2, be arranged on the round valve pocket 3 of changeover valve core 1 inboard and the round bar 5 be fixedly connected with round valve pocket 3 by fixed structure 4, as improvement of the present utility model, the side face of changeover valve core 1 is provided with multiple tracks groove 11, is provided with mutual opposed through hole 12 in this groove 11; Commutation valve pocket 2 and the opposed inner side surface 21 of changeover valve core 1 are smooth circumferential surface.
One side of changeover valve core 1 also is provided with the axial protuberance 13 extended vertically, on this axial protuberance 13, is provided with mutual opposed breach 14.
As of the present utility model preferred, fixed structure 4 is hexagon socket head cap screw, between the inner side surface of commutation valve pocket 2 and the outer peripheral surface of changeover valve core 1, is provided with gap.
As shown in Figure 2, Figure 4 shows, on the side face of commutation valve pocket 2, be equipped with through hole 23, the both ends of the surface of commutation valve pocket 2 are provided with forward direction air flue 22 and backward air flue.
At work, air-flow enters the intake duct in the commutation sleeve side wall, intake duct communicates with the groove 11 on changeover valve core 1, the through hole 23 of air-flow from commutation valve pocket 2 enters forward direction air flue 22, then from front opening, flow out, changeover valve core 1 is motion backward under the effect of air pressure, and come and go valve pocket 3, drives round bar 5 travel forward under reaction force, is cut.
When air-flow, from commutation, the through hole 23 valve pocket 2 enters backward air flue, then from open rearward end, flows out, and changeover valve core 1 travels forward under the effect of air pressure, and come and go valve pocket 3, drives round bar 5 move backward under reaction force, is cut.
The utility model is not in the situation that change traditional, pneumatic tool work principle, gas transmission groove is arranged on the outer peripheral surface of changeover valve core, changed conventional transmission device gas transmission groove has been arranged on to the processing mode on commutation valve pocket inner peripheral surface, commutation valve pocket and the direct mould-forming of changeover valve core get final product, saved traditional Vehicle Processing operation, greatly increase work efficiency, reduced processing cost.
Above demonstration and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (5)
1. an air tool transmission device, comprise changeover valve core, be sleeved on the changeover valve core outside the commutation valve pocket, be arranged on the round valve pocket of described changeover valve core inboard and the round bar be fixedly connected with described round valve pocket by fixed structure, it is characterized in that, the side face of described changeover valve core is provided with the multiple tracks groove, is provided with mutual opposed through hole in this groove; Described commutation valve pocket and the opposed inner side surface of described changeover valve core are smooth circumferential surface.
2. a kind of air tool transmission device according to claim 1, is characterized in that, a side of described changeover valve core also is provided with the axial protuberance extended vertically, is provided with mutual opposed breach on this axial protuberance.
3. a kind of air tool transmission device according to claim 1, is characterized in that, described fixed structure is hexagon socket head cap screw.
4. a kind of air tool transmission device according to claim 1, is characterized in that, between the inner side surface of described commutation valve pocket and the outer peripheral surface of described changeover valve core, leaves gap.
5. according to the described a kind of air tool transmission device of claim 1 or 4, it is characterized in that, on the end face of described commutation valve pocket and side face, be equipped with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320333231 CN203362670U (en) | 2013-06-08 | 2013-06-08 | Transmission device of pneumatic tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320333231 CN203362670U (en) | 2013-06-08 | 2013-06-08 | Transmission device of pneumatic tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203362670U true CN203362670U (en) | 2013-12-25 |
Family
ID=49810444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320333231 Expired - Lifetime CN203362670U (en) | 2013-06-08 | 2013-06-08 | Transmission device of pneumatic tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203362670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641342A (en) * | 2017-03-03 | 2017-05-10 | 江阴宏力工程机械有限公司 | High-frequency reversing rotary valve with non-contact valve element |
-
2013
- 2013-06-08 CN CN 201320333231 patent/CN203362670U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641342A (en) * | 2017-03-03 | 2017-05-10 | 江阴宏力工程机械有限公司 | High-frequency reversing rotary valve with non-contact valve element |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |