CN203796663U - Anti-falling air cylinder - Google Patents
Anti-falling air cylinder Download PDFInfo
- Publication number
- CN203796663U CN203796663U CN201420201473.3U CN201420201473U CN203796663U CN 203796663 U CN203796663 U CN 203796663U CN 201420201473 U CN201420201473 U CN 201420201473U CN 203796663 U CN203796663 U CN 203796663U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- piston rod
- end cover
- rear end
- 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
Links
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 14
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses an anti-falling air cylinder, which comprises a cylinder body, a front end cover and a rear end cover, wherein a piston is disposed inside the cylinder; an air inlet and an air outlet are disposed respectively on the cylinder body; a piston sealing coil is embedded between the piston and the inner wall of the cylinder body; a first piston rod is fixed at one end of the piston; a second piston rod is fixed at the other end of the piston; the first piston rod is fixedly connected to the second piston rod through a connecting piece; an end part of the first piston rod extends out of the front end cover; and a spring seat is sleeved on an outer wall of the first piston rod. The spring seat comprises a guide sleeve barrel and an annular mounting plate disposed on an outer wall of the guide sleeve barrel in a molding way; the annular mounting plate and the front end cover are connected by a spring; and a dust-proof sealing coil is embedded between the second piston rod and the rear end cover. The utility model has the advantages of simple and reasonable structure and good sealing effect; the piston rod can bear heavy loads and the movement concentricity is high; and the springs won't be easily distorted and coiled, so the service life is relatively long.
Description
Technical field
The utility model relates to cylinder technical field, particularly a kind of anti-dropping gas cylinder.
Background technique
In mechanism hand field, conventionally need to control moving up and down of arm by cylinder, for preventing that manipulator from occurring the phenomenon that drops being de-energized suddenly or being died under state, generally adopts anti-dropping gas cylinder to control mechanism hand.Anti-dropping gas cylinder is that a kind of single action is replied cylinder, and its principle is to utilize the characteristic of spring automatic reset, and in the time that cylinder is died, spring drives piston rod Rapid reset, and rapidly manipulator is fixed.But existing anti-dropping gas cylinder is unreasonable because structure arranges, all there is in actual use following defect: the first, cylinder body seal is lower, is prone to gas leakage phenomenon, affects the action sensitivity of piston; The second, piston rod generally adopts single-shaft configuration, in cylinder body, is only provided with a piston rod, and the maximum load that the piston rod of this single-shaft configuration can bear in when work is less, causes that piston rod easily deforms, phenomenon of rupture even; The 3rd, piston rod concentricity when with piston movement is lower, and radial deflection phenomenon easily occurs; The 4th, spring mounting structure arranges unreasonable, while causing spring compressed, easily because distortion affects reply effect around knot, even occurs the problem of spring local fracture.
Model utility content
The purpose of this utility model is for the defect of prior art and deficiency, provides a kind of simple and reasonable, good sealing effect, piston rod can bear, spring higher compared with heavy load and motion concentricity and is difficult for the anti-dropping gas cylinder that is distorted and grows around knot, working life.
For achieving the above object, the utility model is by the following technical solutions:
Anti-dropping gas cylinder described in the utility model, comprise cylinder body, the front cover and the rear end cover that are connected with cylinder body, in described cylinder body, be provided with piston, described piston, between cylinder body and front cover, coordinate and form compression chamber, described piston, between cylinder body and rear end cover, coordinate and form air-inlet cavity, on cylinder body, be respectively equipped with the suction port being communicated with air-inlet cavity, and the relief opening being communicated with compression chamber, between described piston and inboard wall of cylinder block, be embedded with piston packing, one end of described piston is fixed with first piston bar, the other end of piston is fixed with the second piston rod, described first piston bar is positioned on same axis and by link and is fixedly connected with the second piston rod, the end of described first piston bar stretches out in the outside of front cover, and be arranged with spring seat on the outer wall of first piston bar, described spring seat comprises the pilot sleeve with first piston bar outer wall interference fit, and the ring-type mounting plate on pilot sleeve outer wall is located in moulding, between described ring-type mounting plate and front cover, be connected with spring, the outer end of described the second piston rod stretches out in the outside of rear end cover, and be embedded with dust-proof seal ring between described the second piston rod and rear end cover.
Further, described front cover is fixedly connected with described cylinder body with clasp by " C " type hole respectively with rear end cover, is embedded with end bracket enclosed circle between described rear end cover and cylinder body.
Further, the cross section of described piston packing is " Z " shape.
Further, described front cover is provided with the annular groove coordinating with spring, and one end of described spring is sheathed in described annular groove.
Further, the end face of the end face of described pilot sleeve, ring-type mounting plate all with described piston close contact, described piston is provided with the bumper coordinating with rear end cover.
Further, described relief opening is provided with baffler.
The beneficial effects of the utility model are: the utility model, by piston packing, dust-proof seal ring and end bracket enclosed circle are set, has effectively ensured sealability of the present utility model, have avoided the generation of Leakage Gas phenomenon, have improved piston action sensitivity; By first piston bar and the second piston rod are set, between first piston bar and the second piston rod, arrange and be fixedly connected with by link for coaxial, the piston rod construction of this cross-compound arrangement can bear larger transverse load in the time of action, thereby be difficult for deforming or phenomenon of rupture, extended working life; Coordinate by being provided with pilot sleeve and ring-type mounting plate the spring seat forming, pilot sleeve and front cover coordinate the concentricity that has ensured the motion of first piston bar, while having avoided the motion of first piston bar, there is radial deflection, spring fitting is located between ring-type mounting plate and front cover, easy for installation, and spring, under the effect of pilot sleeve, is difficult for when compression being distorted around junction phenomena, reply better effects if.The utility model structure arranges advantages of simple.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
In figure:
1, cylinder body; 2, front cover; 3, rear end cover; 4, piston; 5, compression chamber; 6, air-inlet cavity; 7, suction port; 8, relief opening; 9, piston packing; 10, first piston bar; 11, the second piston rod; 12, link; 13, pilot sleeve; 14, ring-type mounting plate; 15, spring; 16, dust-proof seal ring; 17, " C " type hole clasp; 18, end bracket enclosed circle; 19, annular groove; 20, bumper; 21, baffler.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Anti-dropping gas cylinder as shown in Figure 1, comprise cylinder body 1, the front cover 2 and the rear end cover 3 that are connected with cylinder body 1, in described cylinder body 1, be provided with piston 4, described piston 4, between cylinder body 1 and front cover 2, coordinate and form compression chamber 5, described piston 4, between cylinder body 1 and rear end cover 3, coordinate and form air-inlet cavity 6, on cylinder body 1, be respectively equipped with the suction port 7 being communicated with air-inlet cavity 6, and the relief opening 8 being communicated with compression chamber 5, between described piston 4 and cylinder body 1 inwall, be embedded with piston packing 9, piston packing 9 is set, effectively avoid the gas in air-inlet cavity 6 to enter in compression chamber 5, particularly, the cross section of described piston packing 9 is " Z " shape, there is deformability strongly, in the time that piston 4 moves, frictional force between piston packing 9 and cylinder body 1 inwall is less.
One end of described piston 4 is fixed with first piston bar 10, the other end of piston 4 is fixed with the second piston rod 11, described first piston bar 10 is positioned on same axis and by link 12 and is fixedly connected with the second piston rod 11, the end of described first piston bar 10 stretches out in the outside of front cover 2, and be arranged with spring seat on the outer wall of first piston bar 10, described spring seat comprises the pilot sleeve 13 with first piston bar 10 outer wall interference fit, and the ring-type mounting plate 14 on pilot sleeve 13 outer walls is located in moulding, between described ring-type mounting plate 14 and front cover 2, be connected with spring 15, the outer end of described the second piston rod 11 stretches out in the outside of rear end cover 3, and be embedded with dust-proof seal ring 16 between described the second piston rod 11 and rear end cover 3.
By first piston bar 10 and the second piston rod 11 are set, between first piston bar 10 and the second piston rod 11, arrange and be fixedly connected with by link 12 for coaxial, the piston rod construction of this cross-compound arrangement can bear larger transverse load in the time of action, thereby be difficult for deforming or phenomenon of rupture, extended working life; Coordinate the spring seat of formation by being provided with pilot sleeve 13 and ring-type mounting plate 14, pilot sleeve 13 and front cover 2 cooperations have ensured the concentricity that first piston bar 10 moves, while having avoided first piston bar 10 to move, there is radial deflection, spring 15 is installed and is located between ring-type mounting plate 14 and front cover 2, easy for installation, and spring 15, under the effect of pilot sleeve 13, is difficult for when compression being distorted around junction phenomena, reply better effects if.Dust-proof seal ring 16 had both played dustproof effect, avoided the impurity such as dust to enter in air-inlet cavity 6 with the second piston rod 11, had also played the effect of sealing simultaneously, prevented that the gas in air-inlet cavity 6 from revealing, and sealing effect is better.
Working principle of the present utility model is: when work, be filled with pressurized gas by suction port 7 in air-inlet cavity 6, piston 4 advances under the effect of pressurized gas, and spring 15 is at pressure-acting in compressive state, and the gas in compression chamber 5 is discharged through relief opening 8; In the time stopping passing into pressurized gas to air-inlet cavity 6, piston 4 drives first piston bar 10 and the second piston rod 11 to reset under the effect of spring 15, and manipulator is fixed.
Described front cover 2 is fixedly connected with described cylinder body 1 with clasp 17 by " C " type hole respectively with rear end cover 3, installs easy to connectly, and fixed effect is better.Between described rear end cover 3 and cylinder body 1, be embedded with end bracket enclosed circle 18, ensured sealing effect of the present utility model.Described front cover 2 is provided with the annular groove 19 coordinating with spring 15, one end of described spring 15 is sheathed in described annular groove 19, by annular groove 19 is set, spring 15 is installed more convenient, ensure the position degree of spring 15, made the utility model working state more stable.
The end face of described pilot sleeve 13, the end face of ring-type mounting plate 14 all with described piston 4 close contacts, improved the sensitivity of the utility model work, make piston 4 stressed more even.Described piston 4 is provided with the bumper 20 coordinating with rear end cover 3, has avoided piston 4 and rear end cover 3 that direct collision occurs, and has reduced wearing and tearing and noise.Described relief opening 8 is provided with baffler 21, the noise having produced while having reduced the utility model work.
The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (6)
1. an anti-dropping gas cylinder, it is characterized in that: comprise cylinder body (1), the front cover (2) and the rear end cover (3) that are connected with cylinder body (1), in described cylinder body (1), be provided with piston (4), described piston (4), between cylinder body (1) and front cover (2), coordinate and form compression chamber (5), described piston (4), between cylinder body (1) and rear end cover (3), coordinate and form air-inlet cavity (6), on cylinder body (1), be respectively equipped with the suction port (7) being communicated with air-inlet cavity (6), and the relief opening (8) being communicated with compression chamber (5), between described piston (4) and cylinder body (1) inwall, be embedded with piston packing (9), one end of described piston (4) is fixed with first piston bar (10), the other end of piston (4) is fixed with the second piston rod (11), described first piston bar (10) is positioned on same axis and is fixedly connected with by link (12) with the second piston rod (11), the end of described first piston bar (10) stretches out in the outside of front cover (2), and be arranged with spring seat on the outer wall of first piston bar (10), described spring seat comprises the pilot sleeve (13) with first piston bar (10) outer wall interference fit, and the ring-type mounting plate (14) on pilot sleeve (13) outer wall is located in moulding, between described ring-type mounting plate (14) and front cover (2), be connected with spring (15), the outer end of described the second piston rod (11) stretches out in the outside of rear end cover (3), and be embedded with dust-proof seal ring (16) between described the second piston rod (11) and rear end cover (3).
2. anti-dropping gas cylinder according to claim 1, it is characterized in that: described front cover (2) and rear end cover (3) respectively by " C " type for hole clasp (17) be fixedly connected with described cylinder body (1), between described rear end cover (3) and cylinder body (1), be embedded with end bracket enclosed circle (18).
3. anti-dropping gas cylinder according to claim 1, is characterized in that: the cross section of described piston packing (9) is " Z " shape.
4. anti-dropping gas cylinder according to claim 1, it is characterized in that: described front cover (2) is provided with the annular groove (19) coordinating with spring (15), and one end of described spring (15) is sheathed in described annular groove (19).
5. anti-dropping gas cylinder according to claim 1, it is characterized in that: the end face of described pilot sleeve (13), the end face of ring-type mounting plate (14) all with described piston (4) close contact, described piston (4) is provided with the bumper (20) coordinating with rear end cover (3).
6. anti-dropping gas cylinder according to claim 1, is characterized in that: described relief opening (8) is provided with baffler (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201473.3U CN203796663U (en) | 2014-04-23 | 2014-04-23 | Anti-falling air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201473.3U CN203796663U (en) | 2014-04-23 | 2014-04-23 | Anti-falling air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796663U true CN203796663U (en) | 2014-08-27 |
Family
ID=51378877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201473.3U Expired - Lifetime CN203796663U (en) | 2014-04-23 | 2014-04-23 | Anti-falling air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796663U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563476A (en) * | 2015-06-17 | 2016-05-11 | 浙江理工大学 | Three-freedom-degree mechanical arm |
| CN112077736A (en) * | 2020-10-12 | 2020-12-15 | 深圳市恒拓高工业技术股份有限公司 | Glass grinding precision positioning module |
| CN112576570A (en) * | 2020-11-19 | 2021-03-30 | 青岛泽昊汽车配件有限公司 | Bearing air pressure bar |
-
2014
- 2014-04-23 CN CN201420201473.3U patent/CN203796663U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563476A (en) * | 2015-06-17 | 2016-05-11 | 浙江理工大学 | Three-freedom-degree mechanical arm |
| CN112077736A (en) * | 2020-10-12 | 2020-12-15 | 深圳市恒拓高工业技术股份有限公司 | Glass grinding precision positioning module |
| CN112576570A (en) * | 2020-11-19 | 2021-03-30 | 青岛泽昊汽车配件有限公司 | Bearing air pressure bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Kaifeng Inventor after: Fan Hailang Inventor after: Lin Chuanbo Inventor before: Chen Haibin Inventor before: Zhu Weijie Inventor before: Zhu Jiansong Inventor before: Mao Xiaping Inventor before: Lin Kaifeng Inventor before: Fan Hailang Inventor before: Hu Jun |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180312 Address after: 315500 Dongfeng Road, No. 80 (house B), Fenghua District, Ningbo, Zhejiang Patentee after: NINGBO INTELL PNEUMATIC TECHNOLOGY CO.,LTD. Address before: 315500 Fenghua hi tech park of Fenghua City, Ningbo, Zhejiang Province, Ningbo Isaiah Pneumatic Co., Ltd. Patentee before: NINGBO ISAIAH PNEUMATICS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |