CN2509362Y - Air cylinder with piston bar self-locking device - Google Patents
Air cylinder with piston bar self-locking device Download PDFInfo
- Publication number
- CN2509362Y CN2509362Y CN 01262014 CN01262014U CN2509362Y CN 2509362 Y CN2509362 Y CN 2509362Y CN 01262014 CN01262014 CN 01262014 CN 01262014 U CN01262014 U CN 01262014U CN 2509362 Y CN2509362 Y CN 2509362Y
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- cylinder
- piston
- air cylinder
- piston rod
- acting
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- Expired - Lifetime
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Abstract
The utility model provides an air cylinder with piston bar self-locking device, including an air cylinder piston rod, a front cover, a barrel-type air cylinder back end cover, a buffer piston and a single-acting cylinder which consists of a piston, a sealing ring, a spring and a pressing cover. The piston of the single-acting cylinder is arranged on the external wall of the back of the air cylinder, with one end extending into the air cylinder, the spring is arranged between the piston and the pressing cover which is positioned on the back end face of the air cylinder. The buffer piston of the air cylinder is provided with a ring-shaped groove, and an air inlet of the single-acting cylinder is communicated with an air inlet of the air cylinder. The utility model is simple in structure and safe and reliable in performance; when the air cylinder is vertically arranged in the non-ventilating status, the piston rod is prevented from automatically falling down due to the self weight.
Description
(1) technical field
The utility model relate to a kind of have prevent the cylinder vertically installed under the state of non-ventilation its piston rod because of the cylinder of deadweight down slide device.
(2) background technique
Cylinder is more strict to its Security and reliability requirement as an executive component (as aluminum smelting technology industry) under some particular job environment of pneumatic system.When cylinder was vertically installed, cylinder glided because of deadweight easily at the state lower piston rod of non-ventilation, and accident so possibly meets accident.For addressing this problem, be to adopt manually or two kinds of methods of magnet are pinned piston rod in the common way of aluminum smelting technology industry at present, prevent that piston rod from gliding.But these two kinds of methods are not very desirable, and manually self-locking is owing to be subjected to the restriction operation inconvenience of installation conditions, and its stability of magnet self-locking and reliability are relatively poor.
(3) summary of the invention
The purpose of this invention is to provide a kind of cylinder with self-locking device, this self-locking device is simple in structure, safe and reliable.Can prevent under the non-aeration status that when cylinder vertically is installed in piston rod from gliding because of deadweight, and not influence proper functioning.
The utility model comprises cylinder piston rod, the cylinder protecgulum, cylinder barrel, the cylinder rear end cover, damper piston and by piston, seal ring, the single-acting cylinder that spring and gland are formed, cylinder piston rod is installed in the cylinder barrel, cylinder protecgulum and rear end cover are fixed on the cylinder barrel two ends by pull bar, piston rod one end stretches out cylinder barrel, end in cylinder barrel is equipped with damper piston, have circular groove on the damper piston outer wall, the piston of single-acting cylinder is contained in the hole of being opened on the cylinder rear end cover sidewall, and an end can stretch in the cylinder, outside piston is provided with seal ring, be provided with spring capping between piston and the gland and be contained on the cylinder rear end cover side, the suction port of single-acting cylinder communicates with the suction port of cylinder.
On the gland of single-acting cylinder baffler is housed.
When the working cylinder piston rod is in the retraction state, the piston of single-acting cylinder enters in the circular groove on the damper piston by the pressure of spring, stop piston rod to glide, when working cylinder ventilation work, gas at first pushes back the piston of single-acting cylinder in the cylinder body of single-acting cylinder, self-locking releasing, working cylinder is started working.
The utility model is because only need to increase a single-acting cylinder on the rear end cover of working cylinder, and is relatively simple for structure, simultaneously because single-acting cylinder and working cylinder adopt same suction port, so it to working cylinder use and operation has no effect.
(4) description of drawings
Accompanying drawing is a structural representation of the present utility model.
Wherein: 1, cylinder rear end cover, 2, damper piston, 3, piston, 4, seal ring, 5, spring, 6, gland, 7, screw, 8, inlet hole, 9, baffler, 10, cylinder barrel, 11, protecgulum, 12, pull bar, 13, piston rod.
(5) embodiment
The utility model mainly comprises cylinder piston rod 13, cylinder protecgulum 11, cylinder barrel 10, cylinder rear end cover 1, damper piston 2 (with cylinder piston rod 13 scyewed joint) and the single-acting cylinder of being made up of piston 3, seal ring 4, spring 5, gland 6, screw 7, and the working cylinder piston rod is in the position of self-locking among the figure.Identical with the general work cylinder, cylinder barrel 10 is fixed together by pull bar 12 by protecgulum 11 and rear end cover 1, and piston rod 13 is contained in the cylinder barrel 10, has the circular groove that the cross section is a rectangle on the damper piston outer wall.This single-acting cylinder is a cylinder body with cylinder rear end cover 1, and its piston 3 upper ends are stretched in the working cylinder, the axis normal of the axis of piston 3 and rear end cover 1.Be provided with spring 5 between piston 3 and the gland 6.The suction port of this single-acting cylinder is communicated with the suction port of working cylinder.In order to reduce noise, baffler 9 is housed on gland 6.
Under working cylinder is being stopped the supple of gas or steam state, piston rod is in the retraction state, the piston 3 of single-acting cylinder enters under the effect of spring 5 in the rectangle groove of the damper piston 2 that is connected on the working cylinder piston rod, blocks damper piston 2 and prevents that the working cylinder piston rod from gliding; When cylinder intake was worked, in a short period of time, gas pushed back piston 3 in the cylinder body of single-acting cylinder by the inlet hole 8 of single-acting cylinder ante-chamber, self-locking releasing, and working cylinder is started working.Certainly, the breakout pressure of single-acting cylinder is less than the breakout pressure of working cylinder.
Claims (2)
1, a kind of cylinder with the piston rod self-locking device, comprise cylinder piston rod, the cylinder protecgulum, cylinder barrel, cylinder, rear end cover, damper piston and by piston, seal ring, the single-acting cylinder that spring and gland are formed, cylinder piston rod is installed in the cylinder barrel, cylinder protecgulum and rear end cover are fixed on the cylinder barrel two ends by pull bar, piston rod one end stretches out cylinder barrel, end in cylinder barrel is equipped with damper piston, it is characterized in that: have circular groove on the damper piston outer wall, the piston of single-acting cylinder is contained in the hole of being opened on the cylinder rear end cover sidewall, and an end can stretch in the cylinder, outside piston is provided with seal ring, be provided with spring between piston and the gland, gland is contained on the cylinder rear end cover sidewall, and the suction port of single-acting cylinder communicates with the suction port of cylinder.
2, the cylinder of band piston rod self-locking device according to claim 1 is characterized in that, on the gland of described single-acting cylinder baffler is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262014 CN2509362Y (en) | 2001-10-12 | 2001-10-12 | Air cylinder with piston bar self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01262014 CN2509362Y (en) | 2001-10-12 | 2001-10-12 | Air cylinder with piston bar self-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2509362Y true CN2509362Y (en) | 2002-09-04 |
Family
ID=33669833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01262014 Expired - Lifetime CN2509362Y (en) | 2001-10-12 | 2001-10-12 | Air cylinder with piston bar self-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2509362Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725590B (en) * | 2009-11-30 | 2011-11-16 | 南京康尼机电股份有限公司 | Air driving device with locking unit |
| CN103486108A (en) * | 2013-10-17 | 2014-01-01 | 济南夫驰科技有限公司 | Air cylinder with dual-self-locking structure |
| CN105881558A (en) * | 2015-10-20 | 2016-08-24 | 中日龙(襄阳)机电技术开发有限公司 | Posture part unit rotation mechanism with safety protection device |
| CN106835198A (en) * | 2009-07-21 | 2017-06-13 | 爱思科简易股份公司 | Pneumatic linear actuator control device |
| CN107191428A (en) * | 2017-05-25 | 2017-09-22 | 奉化市鑫潮自动化元件有限公司 | A kind of interior outer piston self-locking cylinder |
-
2001
- 2001-10-12 CN CN 01262014 patent/CN2509362Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835198A (en) * | 2009-07-21 | 2017-06-13 | 爱思科简易股份公司 | Pneumatic linear actuator control device |
| CN106835198B (en) * | 2009-07-21 | 2021-01-15 | 爱思科简易股份公司 | Pneumatic cylinder control device |
| CN101725590B (en) * | 2009-11-30 | 2011-11-16 | 南京康尼机电股份有限公司 | Air driving device with locking unit |
| CN103486108A (en) * | 2013-10-17 | 2014-01-01 | 济南夫驰科技有限公司 | Air cylinder with dual-self-locking structure |
| CN105881558A (en) * | 2015-10-20 | 2016-08-24 | 中日龙(襄阳)机电技术开发有限公司 | Posture part unit rotation mechanism with safety protection device |
| CN105881558B (en) * | 2015-10-20 | 2018-01-02 | 中日龙(襄阳)机电技术开发有限公司 | A kind of unit rotary mechanism of posture portion with safety guard |
| CN107191428A (en) * | 2017-05-25 | 2017-09-22 | 奉化市鑫潮自动化元件有限公司 | A kind of interior outer piston self-locking cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |