CN205559410U - Simple and easy telescopic bar - Google Patents
Simple and easy telescopic bar Download PDFInfo
- Publication number
- CN205559410U CN205559410U CN201521045015.6U CN201521045015U CN205559410U CN 205559410 U CN205559410 U CN 205559410U CN 201521045015 U CN201521045015 U CN 201521045015U CN 205559410 U CN205559410 U CN 205559410U
- Authority
- CN
- China
- Prior art keywords
- piston
- expansion link
- check valve
- telescopic link
- groove
- 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 simple and easy telescopic bar, including telescopic link (1) and piston (2) of connection at this telescopic link tip, telescopic link (1) center department be provided with air vent (11), the air vent run through piston (2), the central point that this telescopic link (1) and piston (2) is connected the department puts and sets up slotted (22), and check valve (13) set up in groove (22). After adopting this kind of structure, when piston intake air, the check valve is opened for gaseous inject into from the air vent, thereby the inside and outside atmospheric pressure of piston is balanced, has guaranteed the steady slip of piston, and during compressed gas, the check valve is closed, and the check valve setting through the mount of piston and telescopic link, has simplified the structure between piston and telescopic link, just effectual the cost is reduced.
Description
Technical field
The utility model relates to pneumatic means, particularly belongs to a kind of easy expansion link mechanism.
Background technology
For the air pressure in the cylinder of the piston of balance telescoping mechanism, when piston carries out stretching motion, general employing damping structure goes balance, at present, on piston, the damping structure of assembling is complicated, and cost is high, and causes the piston apparatus processing and manufacturing of this telescoping mechanism and the cost assembled high.
Chinese Patent Application No. CN102720724A discloses a kind of expansion link mechanism, including one end close cylinder and be contained in the piston in this urceolus slidably, this piston offers passage and is connected with this passage and is positioned at this piston accepting groove near one end of this cylinder body bottom, this expansion link mechanism also includes that the expansion link being connected and the gas pearl being contained in this accepting groove are fixed in the one end with this piston, but use this structure, the end construction of piston is complicated, and process and assemble cost is high.
Utility model content
Of the present utility model solving the technical problem that is: for the problems referred to above, it is provided that a kind of easy expansion link mechanism, not only when piston stretches or compresses, can realize slip smoothly, and simple in construction, processing and assembly manipulation are simply, and low cost.
The utility model is solved the technical problem that to realize by the following technical solutions: a kind of easy expansion link mechanism, including expansion link 1 and the piston 2 being connected to this expansion link end, described expansion link 1 center is provided with passage 11, and described passage runs through piston 2；The center of this expansion link 1 and piston 2 connection is provided with groove 22, and check valve 13 is arranged in groove 22.
Above-mentioned a kind of easy expansion link mechanism, described groove 22 is suitable with the shape size of check valve 13.
Above-mentioned a kind of easy expansion link mechanism, described check valve 13 both sides are provided with packing ring 14.
Above-mentioned a kind of easy expansion link mechanism, described piston 2 is provided with annular groove 21 near centre position outer peripheral face, and described passage 11 is connected with this annular groove by tracheae 12.
Above-mentioned a kind of easy expansion link mechanism, described tracheae 12 is circumferential 1 or more than 1.
After adopting the structure, being controlled the direction of motion of air-flow by check valve 13, and check valve is arranged on piston 2 and the junction of expansion link 1, install fixing by assembling by check valve 13, assembling is simple, and processing and manufacturing low cost.Passage 11 is connected by tracheae 12 with annular groove 21, it is ensured that cylinder 3 keeps consistent with the space internal gas pressure that piston 2 surrounds so that expansion link stable movement.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation starting retractor device of the utility model.
In figure: 1 expansion link, 2 pistons, 3 cylinders, 11 passages, 12 tracheaes, 13 check valves, 14 packing rings, 21 annular grooves, 22 grooves, 31 end caps.
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by detailed description of the invention.
As it is shown in figure 1, a kind of easy expansion link mechanism of the utility model, including expansion link 1 and the piston 2 being threadedly attached in expansion link 1 one side end, expansion link 1 connects piston 2 and can slide vertically in cylinder 3.Cylinder 3 becomes cylindric, and the side being connected with piston 2 is provided with end cap 31, and this end cap 31 can be arranged on cylinder 3 by what the modes such as screw thread sealed, it is also possible to one-body molded with cylinder.
Passage 11 is arranged on the center of expansion link 1, and extends to run through described piston 2, is connected with the gas in cylinder 1.Annular groove 21 is positioned close to the middle position of piston 2, and the tracheae 12 that passage 11 circumferential direction inside direction of piston 2 at annular groove 21 is provided with 1 or more than 1 is identical with this annular groove 21, thus ensures that the air pressure in piston 2 keeps consistent.
Piston 2 and expansion link 1 connection offer groove 22, this groove 22 matches with the size of check valve 13, during assembling, is first disposed entirely within this groove 22 by both sides packing ring 14 by check valve 13, when again piston 2 and expansion link 1 being threaded connection, check valve 13 is completely fixed.
When compressed gas flows to piston 2 from passage 11, check valve 13 is opened, thus inject pressurized gas in the space of piston head and cylinder 3 formation, owing to this annular groove 21 air pressure between piston 2 end and cylinder 2 is kept consistent by tracheae 12, it is thus possible to ensure gas push piston and external pressure smooth sliding, otherwise closed check valve.Using this simple in construction, processing and assembly cost are low, and are effective to ensure that piston head steadily moves.
The general principle of utility model and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; the utility model is not restricted to the described embodiments; description in above-described embodiment and specification simply illustrates principle of the present utility model; on the premise of without departing from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements are all in the range of claimed the utility model, and the utility model claims scope and defined by appending claims and equivalent thereof.
Claims (5)
1. an easy expansion link mechanism, including expansion link (1) and the piston (2) that is connected to this expansion link end, it is characterised in that: described expansion link (1) center is provided with passage (11), and described passage runs through piston (2)；The center of this expansion link (1) and piston (2) connection is provided with groove (22), and check valve (13) is arranged in groove (22).
The easy expansion link mechanism of one the most according to claim 1, it is characterised in that: described groove (22) is suitable with the shape size of check valve (13).
The easy expansion link mechanism of one the most according to claim 1, it is characterised in that: described check valve (13) both sides are provided with packing ring (14).
The easy expansion link mechanism of one the most according to claim 1, it is characterised in that: described piston (2) is provided with annular groove (21) near centre position outer peripheral face, and described passage (11) is connected with this annular groove by tracheae (12).
The easy expansion link mechanism of one the most according to claim 4, it is characterised in that: described tracheae (12) is circumferential 1 or more than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045015.6U CN205559410U (en) | 2015-12-16 | 2015-12-16 | Simple and easy telescopic bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045015.6U CN205559410U (en) | 2015-12-16 | 2015-12-16 | Simple and easy telescopic bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559410U true CN205559410U (en) | 2016-09-07 |
Family
ID=56823502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521045015.6U Expired - Fee Related CN205559410U (en) | 2015-12-16 | 2015-12-16 | Simple and easy telescopic bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205559410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108589178A (en) * | 2018-05-21 | 2018-09-28 | 无锡小天鹅通用电器有限公司 | Damping device and device for clothing processing |
| CN108910108A (en) * | 2018-07-10 | 2018-11-30 | 浙江雅盛塑胶有限公司 | End sealing machine for hose encapsulating |
-
2015
- 2015-12-16 CN CN201521045015.6U patent/CN205559410U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108589178A (en) * | 2018-05-21 | 2018-09-28 | 无锡小天鹅通用电器有限公司 | Damping device and device for clothing processing |
| CN108589178B (en) * | 2018-05-21 | 2021-02-05 | 无锡小天鹅电器有限公司 | Damping device and clothes treatment device |
| CN108910108A (en) * | 2018-07-10 | 2018-11-30 | 浙江雅盛塑胶有限公司 | End sealing machine for hose encapsulating |
| CN108910108B (en) * | 2018-07-10 | 2020-07-21 | 浙江雅盛塑胶有限公司 | Tail sealing machine for filling and sealing hose |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20161216 |