CN207795728U - A kind of air pressure return structure - Google Patents
A kind of air pressure return structure Download PDFInfo
- Publication number
- CN207795728U CN207795728U CN201721664215.9U CN201721664215U CN207795728U CN 207795728 U CN207795728 U CN 207795728U CN 201721664215 U CN201721664215 U CN 201721664215U CN 207795728 U CN207795728 U CN 207795728U
- Authority
- CN
- China
- Prior art keywords
- piston
- piston rod
- cavity
- air pressure
- mounting hole
- 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.)
- Active
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model belongs to hydraulic machinery technical field, is related to piston structure, refers in particular to a kind of air pressure return structure.A kind of air pressure return structure comprising piston seat has piston cavity in piston seat, and piston rod is provided in piston cavity, and the left end of piston seat is provided with power plant, and power plant drives the piston rod；The side of the piston seat offers mounting hole, and mounting hole is connected with piston cavity；Face is offseted equipped with sealing ring with piston rod in the piston cavity；Plunger is formed in piston rod；The piston rod is provided with through-hole on the right side of the sealing ring, and the through-hole is communicated with the plunger；Air valve is installed on the mounting hole.The utility model, which does not need spring, can smoothly carry out the playback of piston rod, and required power reduces, and reduces energy consumption, while have the characteristics that reset fast.
Description
Technical field
The utility model belongs to hydraulic machinery technical field, is related to piston structure, refers in particular to a kind of air pressure return structure.
Background technology
Currently, there is the piston structure of various hydraulic controls in the market, for example make piston using the feed of oil pressure
Piston rod in structure is pushed outwardly, and by elastic compression device is arranged in piston, is resetted.By above-mentioned knot
The presence of structure principle, over time, the service life of elastic compression device can be influenced, and cause piston rod that can not retract,
Simultaneously because entire piston structure relies on the oil pressure of oil pump feed, oil pressure to need to provide larger oil hydraulic power, then bigger is expended
Material, while common piston structure, piston rod playback is slow, and is unable to control, very inconvenient.
Invention content
The purpose of this utility model be to provide it is a kind of reset it is fast, it is efficient and reduce a kind of air pressure return knot needed for power
Structure.
What the purpose of this utility model was realized in：
A kind of air pressure return structure comprising piston seat has piston cavity in piston seat, piston is provided in piston cavity
The left end of bar, piston seat is provided with power plant, and power plant drives the piston rod；The side of the piston seat offers peace
Hole is filled, mounting hole is connected with piston cavity；Face is offseted equipped with sealing ring with piston rod in the piston cavity；In piston rod at
Type has plunger；The piston rod is provided with through-hole, the through-hole and the plunger on the right side of the sealing ring
It communicates；Air valve is installed on the mounting hole.
The utility model is further arranged to, and the piston rod left end is provided with bulge loop, in the piston cavity and piston
Bar offsets face equipped with stepped part, and when piston rod slides to the right, the bulge loop is mutually compressed with the stepped part；The ladder
Portion and the piston rod, which offset to be arranged on face, O-shaped has sealing ring.
The utility model is further arranged to, the piston rod and the unprecedented interior formation clearance portion of piston.
The utility model is further arranged to, and the power plant is oil pressure pump.
The utility model is further arranged to, and the mounting hole is equipped with sealing ring 2 with the air valve contact surface.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that：
1. making piston rod quickly playback by air valve using the through-hole in the piston cavity in the utility model, making
In piston structure, piston rod does piston sport efficiency higher.
2. strengthening the component in piston structure using the upper sealing ring that the face that throughout offsets is arranged in the utility model
Between leakproofness, promote the sealing intensity on each position.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of the utility model,
Fig. 2 is the structural schematic diagram of the utility model,
Meaning represented by figure label：
1- piston cavities；11- piston seats；12- fluid chambers；2- clearance portions；3- piston rods；31- plungers；32- is convex
Ring；4- power plants；5- through-holes；6- mounting holes；61- air valves；7- stepped parts.
Specific implementation mode
The utility model is further described with reference to specific embodiment：
As shown in Figures 1 and 2, a kind of air pressure return structure, which is characterized in that it includes piston seat 11, in piston seat 11
There is piston cavity 1, piston rod 3 is provided in piston cavity 1, the left end of piston seat 11 is provided with power plant 4, and power plant is driven
Move the piston rod 3；The side of the piston seat 11 offers mounting hole 6, and mounting hole 6 is connected with piston cavity 1；The piston
Face is offseted equipped with sealing ring with piston rod 3 in cavity 1；Plunger 31 is formed in piston rod 3；The piston rod 3 exists
It is provided with through-hole 5 on the right side of the sealing ring, the through-hole 5 is communicated with the plunger 31；It is equipped on the mounting hole 6
Air valve 61.Under normal condition, user needs to make the movement of piston carry out using piston structure, and the movement of piston rod 3 drives use
Instrument needed for family needs, and power plant 4 is provided power source the utility model and provided using oil pressure, makes piston cavity filling oil,
So that piston rod 3 is moved right, this piston rod 3 is kept reversely not retract, power plant 4 provides a lasting power；When
When user needs piston rod 3 to be retracted, power plant 4 no longer persistently provides power at this time, keeps normal condition, traditional at this time
Piston rod 3 in be equipped with spring, the retraction of piston rod 3 is carried out by the opposition after spring elongation, spring may be because
Stretching state is kept for a long time, and causes elastic decrease, is caused piston rod 3 to be slowly retracted, is influenced working efficiency；And this practicality is new
Type uses, and plunger 31, plunger 31 and 5 phase of through-hole offered on piston cavity 1 are formed in piston rod 3
It is logical, user piston rod 3 is released it is identical as traditional mode, when user needs piston rod 3 being retracted, power plant at this time
4 no longer need to provide lasting power, and the air valve installed on through-hole carries out air inlet, and the plunger communicated 31 is made to carry out air
Filling so that piston rod 3 is quickly playbacked under artificial offer aerodynamic force, in the utility model using the gas of feed
Piston cavity is divided into the design of fluid chamber 12 and atmospheric pressure cavity 2, is that fluid is conserved, and utilizes the plug 33 of 3 left end of piston rod
It is sealed, very securely and reliably, efficiency far is higher than by the working efficiency retracted naturally after spring elongation, simultaneously in addition
Traditional opposition for overcoming spring elongation needs more power, the utility model to be not necessarily to face the problem, reduce
The consumption of the energy.
The utility model is further arranged to, and 3 left end of the piston rod is provided with bulge loop 32, in the piston cavity 1 with
Piston rod 3 offsets face equipped with stepped part 7, and when piston rod 3 slides to the right, the bulge loop 32 is mutually supported with the stepped part 7
Pressure；The stepped part 7 and the piston rod 3, which offset to be arranged on face, O-shaped has sealing ring.After meeting the stretching of piston rod 3, it will not go out
Piston rod 3 is entirely now released into the fact that piston cavity 1 is outer, the stepped part 7 of setting and the bulge loop being arranged on piston rod 3,
Play the role of preventing above-mentioned phenomenon from occurring, while in order to ensure the leakproofness of single-piece piston structure, the stepped part 7 with
The piston rod 3, which offsets, is arranged O-ring seal on face.
The utility model is further arranged to, the piston rod 3 and formation clearance portion 2 in piston cavity 1.The gap of formation
Portion 2 is enabled to provide more vessel sizes, keeps the area that air contacts more, and piston rod 3 playbacks after further making air valve air inlet
Effect is more preferable.
The utility model is further arranged to, and the power plant 4 is oil pressure pump.Among the above, power plant 4 is set as
Oil hydraulic power, while the present embodiment is only only a kind of, while changing power apparatus and being alternatively starter, equally can also it complete
State example scheme.Oil pressure provide it is best the reason is that, the decrement of fluid is very small, and the continuous of fluid is thought under usual pressure
Flowing is driven, and hydraulic damping device can be arranged in oil circuit, prevents the vibrations button in process from hitting, and transmission is very
It is steady.
The utility model is further arranged to, and the mounting hole 6 is equipped with sealing ring with 61 contact surface of the air valve.Above-mentioned gas
Valve 61 is when mounted on the mounting hole 6, to reduce the loss of gas, in the sealing ring that mounting hole 6 adds, ensures that piston rod is empty
Chamber 31 will not give birth to the appearance of gas leakage being passed to mounting hole 6, while sealing ring also reduces power loss and provides good help.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore：The equivalence changes that all structures, shape, principle according to the utility model are done, should all be covered by the protection of the utility model
Within the scope of.
Claims (5)
1. a kind of air pressure return structure, which is characterized in that it includes piston seat (11), has piston cavity (1) in piston seat (11),
Piston rod (3) is provided in piston cavity (1), the left end of piston seat (11) is provided with power plant (4), and power plant drives institute
State piston rod (3)；The side of the piston seat (11) offers mounting hole (6), and mounting hole (6) is connected with piston cavity (1)；Institute
It states in piston cavity (1) and offsets face equipped with sealing ring with piston rod (3)；Plunger (31) is formed in piston rod (3)；
The piston rod (3) is provided with through-hole (5), the through-hole (5) and the plunger (31) phase on the right side of the sealing ring
It is logical；Air valve (61) is installed on the mounting hole (6).
2. air pressure return structure according to claim 1, which is characterized in that piston rod (3) left end is provided with bulge loop
(32), the face that offsets with piston rod (3) in the piston cavity (1) is equipped with stepped part (7), when piston rod (3) slides to the right,
The bulge loop (32) mutually compresses with the stepped part (7)；The stepped part (7) and the piston rod (3), which offset, is arranged O on face
Type has sealing ring.
3. air pressure return structure according to claim 2, which is characterized in that the piston rod (3) is interior with piston cavity (1)
Form clearance portion (2).
4. air pressure return structure according to claim 1, which is characterized in that the power plant (4) is oil pressure pump.
5. air pressure return structure according to claim 1, which is characterized in that the mounting hole (6) and the air valve (61)
Contact surface is equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721664215.9U CN207795728U (en) | 2017-12-04 | 2017-12-04 | A kind of air pressure return structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721664215.9U CN207795728U (en) | 2017-12-04 | 2017-12-04 | A kind of air pressure return structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795728U true CN207795728U (en) | 2018-08-31 |
Family
ID=63286366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721664215.9U Active CN207795728U (en) | 2017-12-04 | 2017-12-04 | A kind of air pressure return structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014227A (en) * | 2020-08-28 | 2020-12-01 | 东北大学 | Self-balancing active unloading actuator for piston rod and use method |
-
2017
- 2017-12-04 CN CN201721664215.9U patent/CN207795728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014227A (en) * | 2020-08-28 | 2020-12-01 | 东北大学 | Self-balancing active unloading actuator for piston rod and use method |
| CN112014227B (en) * | 2020-08-28 | 2021-07-06 | 东北大学 | Self-balancing active unloading actuator for piston rod and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207795728U (en) | A kind of air pressure return structure | |
| CN206621620U (en) | Pneumatic type Needleless injection device | |
| CN211009367U (en) | Hydraulic cylinder with high sealing and leakage prevention functions | |
| CN201359049Y (en) | Silent damper | |
| CN207044516U (en) | Casting machine drawing mechanism is used in a kind of polyurethane wood-imitation material production | |
| CN203670595U (en) | Buffering oil cylinder of dynamic compaction machine and installation structure of buffering oil cylinder | |
| CN201412469Y (en) | Open gas chamber type electro-hydraulic thruster | |
| CN203756619U (en) | Piston type energy storing device for pumping unit | |
| CN205101308U (en) | Gas boost cylinder | |
| CN202545230U (en) | Polymer injection pump | |
| CN213711286U (en) | Sealing structure for diaphragm pump | |
| CN200999861Y (en) | Flexible liquid filling hole cavity composite sealing ring | |
| CN201627925U (en) | Y-shaped thermoplastic polyurethane hydraulic seal ring | |
| CN204878497U (en) | Instead draw controllable air spring | |
| CN103352949B (en) | Expansion link and telescopic structure unit thereof | |
| CN201215081Y (en) | Combination spreading machine plunger pump | |
| CN204253494U (en) | High speed and high pressure injection machine die cylinder | |
| CN207080442U (en) | A kind of new servomotor device | |
| CN203880154U (en) | One-way air gun valve | |
| CN208778566U (en) | A kind of twin-tub temperature-compensating gas spring | |
| CN205533955U (en) | Tonifying qi formula air spring | |
| CN202628687U (en) | Energy-saving system for working device | |
| CN219412877U (en) | Pressure maintaining device for pneumatic energy-saving booster oil pump | |
| CN208107039U (en) | Aeration valve hydraulic damping device and aeration valve hydraulic damping equipment | |
| CN2660228Y (en) | Strongly sealed piston |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |