CN203019302U - Piston taking-out device - Google Patents
Piston taking-out device Download PDFInfo
- Publication number
- CN203019302U CN203019302U CN 201220687822 CN201220687822U CN203019302U CN 203019302 U CN203019302 U CN 203019302U CN 201220687822 CN201220687822 CN 201220687822 CN 201220687822 U CN201220687822 U CN 201220687822U CN 203019302 U CN203019302 U CN 203019302U
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- CN
- China
- Prior art keywords
- spring cylinder
- conical surface
- piston
- plug device
- dilatation
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a piston taking-out device. The piston taking-out device comprises an elastic barrel (1). A circular groove (2) is formed in the outer circle of the bottom of the elastic barrel, and an elastic snap ring (3) is arranged in the circular groove. An expansion conical surface (4) is arranged on the inner circle of the bottom of the elastic barrel, and a contraction conical surface (5) is arranged on the outer circle of the middle part of the elastic barrel. External threads (6) and internal threads (7) are respectively arranged on the outer circle and the inner circle above the contraction conical surface. A barrel body of the elastic barrel below the external threads is provided with a group of elastic grooves (8) which are evenly distributed along the circumference of the elastic barrel. An expansion shaft (9) is arranged inside the elastic barrel, the expansion shaft is connected with the inner threads inside an inner bore of the elastic barrel, and an expansion head (10) is arranged at the lower end of the expansion shaft. The external threads of the elastic barrel are in threaded connection with a contraction sleeve (11). The piston taking-out device has the advantages of being simple in structure, easy to manufacture, low in manufacturing cost, convenient to use, and needless of damaging a piston when the piston is taken out. The defects of an existing piston taking-out device can be overcome.
Description
Technical field
The utility model relates to a kind of plug device of getting, and belongs to piston and takes out technical field of tools.
Background technology
Hydraulic cylinder or pneumatic cylinder are to use very extensive a kind of Hydraulic Elements, and hydraulic cylinder or pneumatic cylinder are equipped with piston, carry out work by the reciprocating motion of piston.So in flight-line maintenance, the maintenance capacity of hydraulic cylinder or pneumatic cylinder is also larger.During maintenance, piston is stuck in cylinder body, is difficult to take out.When particularly some cylinder body one ends seal, more difficult taking-up.To take out the piston hard problem in order solving, also have at present some pistons to take out instrument, but use to be all not too convenient, some also can damage the piston inner hole seal groove in the process of taking out piston.Also have some complex structures, cost of manufacture is high.
Summary of the invention
The purpose of this utility model is, a kind of plug device of getting is provided.Have simple in structurely, easy to use, can not damage the characteristics of piston when taking out piston.Can overcome the existing deficiency that the plug device exists of getting.
The technical solution of the utility model:
A kind of plug device of getting comprises spring cylinder; The bottom cylindrical of spring cylinder is provided with annular groove, is provided with snap ring in annular groove; The bottom inner circle of spring cylinder is provided with the expansion conical surface, and the middle part cylindrical is provided with the contraction conical surface; Shrink the conical surface above cylindrical and inner circle and be respectively equipped with external screw thread and internal thread; The spring cylinder cylindrical shell of external screw thread below is provided with one group of elastic groove that is uniformly distributed along the circumference; Be provided with main axis of dilatation in spring cylinder, main axis of dilatation is threaded with internal thread in the spring cylinder endoporus, and the main axis of dilatation lower end is provided with expansion-head; The external screw thread of spring cylinder is threaded with shrinkage sleeve.
Aforementioned getting in the plug device, the external screw thread of described spring cylinder is that steep-pitch thread is connected with shrinkage sleeve.
Aforementioned getting in the plug device, snap ring and annular groove in described annular groove are matched in clearance in original state.
Aforementioned getting in the plug device, the inner circle of described shrinkage sleeve bottom are the inner conical surfaces identical with contraction conical degree of conical surface on the cylindrical of spring cylinder middle part.
Aforementioned getting in the plug device is equipped with handle on described shrinkage sleeve and main axis of dilatation.
Aforementioned getting in the plug device, described snap ring is provided with one group of telescopic chute that is uniformly distributed along the circumference and an open.
Aforementioned getting in the plug device is provided with the connection boss in the middle part of described main axis of dilatation, the cylindrical that connects boss is provided with connecting thread, and connecting thread is threaded with the internal thread of spring cylinder.
Compared with prior art, spring cylinder of the present utility model is provided with the contraction conical surface, when shrinkage sleeve is rotated down, the top, endoporus base of shrinkage sleeve is pressed and is shunk the conical surface, the spring cylinder lower end diameter is dwindled, can very easily snap ring be enclosed within on spring cylinder, then rotate up shrinkage sleeve to the spring cylinder top, at this moment, spring cylinder restPoses snap ring can not come off from spring cylinder.During work, by spring cylinder, snap ring is put in cylinder body, make the snap ring convex platform aim at the piston inner hole seal groove and then rotate up main axis of dilatation, the expansion conical surface on the expansion-head outside top compression elasticity cylinder of main axis of dilatation bottom, outwards push snap ring by spring cylinder, make the boss on snap ring be absorbed in the piston inner hole seal groove.And then rotate shrinkage sleeve, and the lower end of shrinkage sleeve is withstood on the cylinder body of hydraulic cylinder or cylinder, continue to rotate shrinkage sleeve, piston can be pulled out in cylinder body.The utility model is simple in structure, easily processing, low cost of manufacture.Easy to use, can not damage the characteristics of piston when taking out piston.Can overcome the existing deficiency that the plug device exists of getting.
Description of drawings
Fig. 1 is perspective view of the present utility model;
Fig. 2 is schematic appearance of the present utility model;
Fig. 3 is planar structure schematic diagram of the present utility model;
Fig. 4 is the structural representation of spring cylinder;
Fig. 5 is the structural representation of main axis of dilatation;
Fig. 6 is the structural representation of shrinkage sleeve;
Fig. 7 is the structural representation of snap ring;
Fig. 8 is the utility model working state schematic representation.
Being labeled as in figure: 1-spring cylinder, 2-annular groove, 3-snap ring, the 4-expansion conical surface, 5-shrink the conical surface, 6-external screw thread, 7-internal thread, 8-elastic groove, 9-main axis of dilatation, 10-expansion-head, 11-shrinkage sleeve, 12-handle, 13-telescopic chute, 14-connection boss, 15-connecting thread, 16-piston, 17-open.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing, but not as to any restriction of the present utility model.
A kind of plug device of getting, as shown in Figure 1.Comprise spring cylinder 1; The bottom cylindrical of spring cylinder 1 is provided with annular groove 2, is provided with snap ring 3 in annular groove 2; The bottom inner circle of spring cylinder 1 is provided with the expansion conical surface 4, and the middle part cylindrical is provided with and shrinks the conical surface 5; Shrink cylindrical and the inner circle of the conical surface more than 5 and be respectively equipped with external screw thread 6 and internal thread 7; Spring cylinder 1 cylindrical shell of external screw thread 7 belows is provided with one group of elastic groove that is uniformly distributed along the circumference 8; Be provided with main axis of dilatation 9 in spring cylinder 1, main axis of dilatation 9 is threaded with internal thread 7 in spring cylinder 1 endoporus, and main axis of dilatation 9 lower ends are provided with expansion-head 10; The external screw thread 6 of spring cylinder 1 is threaded with shrinkage sleeve 11.The external screw thread 6 of spring cylinder 1 is connected for steep-pitch thread with shrinkage sleeve 11.Snap ring 3 in annular groove 2 is matched in clearance with annular groove 2 in original state.The inner circle of shrinkage sleeve 11 bottom is the inner conical surface identical with the contraction conical surface 5 taperings on spring cylinder 1 middle part cylindrical.In order to rotate conveniently, be equipped with handle 12 on shrinkage sleeve 11 and main axis of dilatation 9.Handle 12 adopts welding manner fastening with main axis of dilatation 9 and shrinkage sleeve 11.Snap ring 3 is provided with one group of telescopic chute that is uniformly distributed along the circumference 13 and an open 17; Main axis of dilatation 9 middle parts are provided with and connect boss 14, and the cylindrical that connects boss 14 is provided with connecting thread 15, and connecting thread 15 is threaded with the internal thread 7 of spring cylinder 1.
The course of work of the present utility model and principle
The course of work of the utility model taking-up piston as shown in Figure 8.
1, pull handle 12 and be rotated down shrinkage sleeve 11, when shrinkage sleeve 1 comes downwards to the contraction conical surface 5 of interior bore edges extruding spring cylinder 1, continue to be rotated down shrinkage sleeve 11, the contraction conical surface 5 constraint spring cylinders 1 of the edge extruding spring cylinder 1 of shrinkage sleeve 1 make the claw contraction of spring cylinder 1 lower end, diameter diminishes, the snap ring 3 of can packing into smoothly.Snap ring 3 varies in size with the shape and size of piston inner hole sealing ring holding tank and different.
2, (dotted line represents piston as shown in Figure 8 snap ring 3 to be put in piston the seal groove place.Different size L, the piston of the desirable different depth position of expression).
3, the handle 12 of pulling on shrinkage sleeve rotates up shrinkage sleeve 11, makes the contraction conical surface 5 that moves away on shrinkage sleeve 11 on spring cylinder 1.
4, the handle 12 of pulling on main axis of dilatation rotates up main axis of dilatation 9, make the claw expansion conical surface 4 of the expansion-head 10 extruding spring cylinders 1 on main axis of dilatation 9, and make the claw distending of spring cylinder 1, this moment claw swell that can to cause snap ring 3 to swell together stuck in piston in seal groove.
5, the axial restraint shrinkage sleeve 11, are rotated down shrinkage sleeve 11 by the handle 12 on shrinkage sleeve, and the external screw thread 6 on spring cylinder 1 progressively withdraws from shrinkage sleeve 11, and snap ring 3 drives piston 16 and withdraws from piston cylinder simultaneously; Thereby complete the operation of dismounting piston.
When taking out piston, that blocks between piston 16 and cylinder body during beginning is very tight, when filling in after device draws pine with of the present utility model getting, just can directly pull out.
Claims (7)
1. get the plug device for one kind, it is characterized in that: comprise spring cylinder (1); The bottom cylindrical of spring cylinder (1) is provided with annular groove (2), is provided with snap ring (3) in annular groove (2); The bottom inner circle of spring cylinder (1) is provided with the expansion conical surface (4), and the middle part cylindrical is provided with and shrinks the conical surface (5); Shrink the conical surface (5) above cylindrical and inner circle and be respectively equipped with external screw thread (6) and internal thread (7); Spring cylinder (1) cylindrical shell of external screw thread (7) below is provided with one group of elastic groove that is uniformly distributed along the circumference (8); Be provided with main axis of dilatation (9) in spring cylinder (1), main axis of dilatation (9) is threaded with internal thread (7) in spring cylinder (1) endoporus, and main axis of dilatation (9) lower end is provided with expansion-head (10); The external screw thread (6) of spring cylinder (1) is threaded with shrinkage sleeve (11).
2. get according to claim 1 the plug device, it is characterized in that: the external screw thread (6) of described spring cylinder (1) is connected for steep-pitch thread with shrinkage sleeve (11).
3. get according to claim 1 the plug device, it is characterized in that: the snap ring (3) in described annular groove (2) is matched in clearance with annular groove (2) in original state.
4. get according to claim 1 the plug device, it is characterized in that: the inner circle of described shrinkage sleeve (11) bottom is the inner conical surface identical with the contraction conical surface (5) tapering on the cylindrical of spring cylinder (1) middle part.
5. get according to claim 1 the plug device, it is characterized in that: be equipped with handle (12) on described shrinkage sleeve (11) and main axis of dilatation (9).
6. get according to claim 1 the plug device, it is characterized in that: described snap ring (3) is provided with one group of telescopic chute that is uniformly distributed along the circumference (13) and an open (17).
7. get according to claim 1 the plug device, it is characterized in that: be provided with connection boss (14) in the middle part of described main axis of dilatation (9), the cylindrical that connects boss (14) is provided with connecting thread (15), and connecting thread (15) is threaded with the internal thread (7) of spring cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220687822 CN203019302U (en) | 2012-12-13 | 2012-12-13 | Piston taking-out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220687822 CN203019302U (en) | 2012-12-13 | 2012-12-13 | Piston taking-out device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203019302U true CN203019302U (en) | 2013-06-26 |
Family
ID=48643316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220687822 Expired - Lifetime CN203019302U (en) | 2012-12-13 | 2012-12-13 | Piston taking-out device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203019302U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346409A (en) * | 2016-11-11 | 2017-01-25 | 西安近代化学研究所 | Sealed bomb gasket dismounting tool |
| CN109176389A (en) * | 2018-09-18 | 2019-01-11 | 上海天永智能装备股份有限公司 | A kind of self-locking drawing horse |
| CN109262221A (en) * | 2018-10-30 | 2019-01-25 | 广西玉柴机器股份有限公司 | A kind of resilient sleeve holding barring gear |
| CN111056037A (en) * | 2019-12-29 | 2020-04-24 | 大连长丰实业总公司 | Aircraft intake duct guard grating rocking arm extraction device |
| CN113524100A (en) * | 2020-04-20 | 2021-10-22 | 通用汽车环球科技运作有限责任公司 | Cup plug insertion tool |
| CN114800379A (en) * | 2022-04-14 | 2022-07-29 | 中国航发贵州黎阳航空动力有限公司 | Turbofan engine plug dismantling method, dismantling tool and dismantling simulation device |
-
2012
- 2012-12-13 CN CN 201220687822 patent/CN203019302U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346409A (en) * | 2016-11-11 | 2017-01-25 | 西安近代化学研究所 | Sealed bomb gasket dismounting tool |
| CN109176389A (en) * | 2018-09-18 | 2019-01-11 | 上海天永智能装备股份有限公司 | A kind of self-locking drawing horse |
| CN109176389B (en) * | 2018-09-18 | 2024-04-16 | 上海天永智能装备股份有限公司 | Self-locking type puller |
| CN109262221A (en) * | 2018-10-30 | 2019-01-25 | 广西玉柴机器股份有限公司 | A kind of resilient sleeve holding barring gear |
| CN109262221B (en) * | 2018-10-30 | 2023-09-22 | 广西玉柴机器股份有限公司 | Elastic sleeve enclasping jigger device |
| CN111056037A (en) * | 2019-12-29 | 2020-04-24 | 大连长丰实业总公司 | Aircraft intake duct guard grating rocking arm extraction device |
| CN113524100A (en) * | 2020-04-20 | 2021-10-22 | 通用汽车环球科技运作有限责任公司 | Cup plug insertion tool |
| CN114800379A (en) * | 2022-04-14 | 2022-07-29 | 中国航发贵州黎阳航空动力有限公司 | Turbofan engine plug dismantling method, dismantling tool and dismantling simulation device |
| CN114800379B (en) * | 2022-04-14 | 2023-09-26 | 中国航发贵州黎阳航空动力有限公司 | Turbofan engine plug dismantling method, dismantling tool and dismantling simulation device |
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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 |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |