CN209430665U - A kind of hydraulic shock-absorbing cylinder with sealing ring - Google Patents
A kind of hydraulic shock-absorbing cylinder with sealing ring Download PDFInfo
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- CN209430665U CN209430665U CN201822062996.5U CN201822062996U CN209430665U CN 209430665 U CN209430665 U CN 209430665U CN 201822062996 U CN201822062996 U CN 201822062996U CN 209430665 U CN209430665 U CN 209430665U
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- sealing ring
- cylinder body
- piston rod
- sealing
- sealing cover
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Abstract
The utility model relates to a kind of hydraulic shock-absorbing cylinder with sealing ring comprising cylinder body, sealing cover, piston rod, piston component and sealing ring；Wherein, the sealing cover and cylinder body match；The piston rod passes through sealing cover, and one end extends into cylinder body；The piston component is connected on piston rod, and is located in cylinder body；The sealing ring is also contained in cylinder body, is arranged on the piston rod, and between sealing cover and piston component；Air chamber is formed between the sealing ring and sealing cover, the other side of sealing ring forms hydraulic cavities；Oil-through hole is offered on the sealing ring, a check valve is installed in the oil-through hole, which can make hydraulic oil in air chamber be back to hydraulic cavities.It is air chamber above the sealing ring of the utility model, when piston rod retracts in cylinder, sealing ring can shrink back to air chamber, hydraulic oil is located at below sealing ring, so as to avoid hydraulic oil from revealing from the junction and piston rod of cylinder body and sealing cover and the junction of sealing cover.
Description
[technical field]
The utility model relates to a kind of shock-absorbing cylinders, and in particular to a kind of hydraulic shock-absorbing cylinder with sealing ring belongs to shock-absorbing
Device technical field.
[background technique]
It is well known that hydraulic shock-absorbing cylinder is that a kind of compressibility using liquid oil and liquid oil absorb energy in compression
The characteristic of dissipation energy when amount and flowing, realizes the device for the purpose for reducing or eliminating vibration.
The hydraulic shock-absorbing cylinder of the prior art is usually made of several parts such as cylinder body, sealing cover, piston rod and piston.Its
In, cylinder body and sealing cover cooperate and form a seal chamber, hydraulic oil are full of in seal chamber, however, when piston rod is retracted
In seal chamber, piston rod will certainly occupy part seal chamber volume, and hydraulic oil generates higher oil pressure, to cause hydraulic oil from cylinder
The junction and piston rod of body and sealing cover and the junction leakage of sealing cover.
Therefore, in order to solve the above technical problems, it is necessory to provide a kind of hydraulic shock-absorbing cylinder with sealing ring of innovation,
To overcome the defect in the prior art.
[utility model content]
To solve the above problems, the purpose of this utility model is to provide a kind of structure is simple, easy to use and hydraulic oil
It is not easy the hydraulic shock-absorbing cylinder with sealing ring revealed.
To achieve the above object, the technical solution that the utility model is taken are as follows: a kind of hydraulic shock-absorbing cylinder with sealing ring,
It includes cylinder body, sealing cover, piston rod, piston component and sealing ring；Wherein, the sealing cover and cylinder body match；It is described
Piston rod passes through sealing cover, and one end extends into cylinder body；The piston component is connected on piston rod, and is located in cylinder body；
The sealing ring is also contained in cylinder body, is arranged on the piston rod, and between sealing cover and piston component；The sealing
Air chamber is formed between ring and sealing cover, the other side of sealing ring forms hydraulic cavities；Oil-through hole, institute are offered on the sealing ring
It states and a check valve is installed in oil-through hole, which can make hydraulic oil in air chamber be back to hydraulic cavities.
The hydraulic shock-absorbing cylinder with sealing ring of the utility model is further arranged to: the intracorporal middle and upper part of cylinder is fixed
There is a snap ring, the sealing ring can move between snap ring and sealing cover.
The hydraulic shock-absorbing cylinder with sealing ring of the utility model is also configured to: the interior lateral surface of the sealing ring is set respectively
It is equipped with O-ring, the O-ring is connected on the inner wall and piston rod of cylinder body.
Compared with prior art, the utility model has the following beneficial effects: the liquid with sealing ring of the utility model
Pressure shock-absorbing cylinder is air chamber above sealing ring, when piston rod retracts in cylinder, sealing ring can by adding sealing ring in cylinder body
It shrinks back to air chamber, hydraulic oil is located at below sealing ring, so as to avoid hydraulic oil from the junction of cylinder body and sealing cover, with
And the junction leakage of piston rod and sealing cover.
[Detailed description of the invention]
Fig. 1 is state diagram of the hydraulic shock-absorbing cylinder with sealing ring of the utility model before shock-absorbing.
Fig. 2 is state diagram of the hydraulic shock-absorbing cylinder with sealing ring of the utility model after shock-absorbing.
Fig. 3 is the partial enlarged view of the hydraulic shock-absorbing cylinder with sealing ring of the utility model.
[specific embodiment]
It please referring to shown in Figure of description 1 to attached drawing 3, the utility model is a kind of hydraulic shock-absorbing cylinder with sealing ring,
It is made of several parts such as cylinder body 1, sealing cover 2, piston rod 3, piston component 4 and sealing rings 5.
Wherein, the sealing cover 2 and cylinder body 1 match, and in the present embodiment, 2 system of sealing cover is bolted on cylinder body 1,
Make sealing in cylinder body 1.
The piston rod 3 passes through sealing cover 2, and one end extends into cylinder body 1, and cylinder body 1 is coaxially disposed.The piston
Component 4 is connected on piston rod 2, and is located in cylinder body 3, can be moved axially in reciprocal fashion in cylinder body 3.
The sealing ring 5 is also contained in cylinder body 1, is set on piston rod 3, and is located at sealing cover 2 and piston component 4
Between.Form air chamber 7 between the sealing ring 5 and sealing cover 2, the other side of sealing ring 5 forms hydraulic cavities 8, in hydraulic cavities 8
Full of hydraulic oil.
Further, the middle and upper part in the cylinder body 1 is fixed with a snap ring 6, and the sealing ring 5 can be in snap ring 6 and sealing
It is moved between lid 2, to limit the moving range of sealing ring 5.
Oil-through hole 51 is offered on the sealing ring 5, and a check valve 52 is installed in the oil-through hole 51, the check valve 52
Hydraulic oil in air chamber 7 can be made to be back to hydraulic cavities 8.Due to being air chamber 7 above sealing ring 5, it can accommodate and be let out from hydraulic cavities 8
The hydraulic oil of dew avoids hydraulic oil from directly leaking out from the junction of cylinder body 1 and sealing cover 2.
Be respectively arranged with O-ring 9 on the interior lateral surface of the sealing ring 5, the O-ring 9 be connected to the inner wall of cylinder body 1 with
And on piston rod 3, so that hydraulic oil be avoided to leak between the inner wall of sealing ring 5 and cylinder body 1, piston rod 3.
The working principle of the hydraulic shock-absorbing cylinder with sealing ring of the utility model is as follows: as shown in Figure of description 1,
For the state diagram (original state) of the hydraulic shock-absorbing cylinder before shock-absorbing of the utility model, at this point, since piston rod 3 is predominantly located in
Outside cylinder body 1, the small in size of hydraulic cavities 8 is occupied, therefore, 7 volume of air chamber of 5 top of sealing ring is big.
When piston rod 3 is impacted and hydraulic shock-absorbing cylinder is needed to generate shock-absorbing effect, piston component 4 is pushed, to reach
Damping effect.And in piston rod 2 during being retracted in oil cylinder 1, piston rod 3 will occupy the hydraulic cavities 8 of certain volume, liquid
Pressure oil will jack sealing ring 5, reduce the volume of air chamber 7, and 8 volume of hydraulic cavities becomes larger, and high pressure will not be generated in hydraulic cavities 8,
And certain pressure can be generated in air chamber 7, which can slow down the sealing ring rate of climb, make piston component 4 in decline process
In it is more flexible, improve damping effect.Meanwhile hydraulic oil is always positioned at the lower section of sealing ring 5, it will not be from cylinder body 1 and sealing cover 2
Junction leaks out.Even if there is a small amount of hydraulic oil to penetrate into cavity chamber 7, also hydraulic cavities can be discharged into again by check valve 52.
Above specific embodiment is only the preferred embodiment of this creation, all in this wound not to limit this creation
Any modification, equivalent substitution, improvement and etc. done within the spirit and principle of work, should be included in this creation protection scope it
It is interior.
Claims (3)
1. a kind of hydraulic shock-absorbing cylinder with sealing ring, it is characterised in that: including cylinder body, sealing cover, piston rod, piston component with
And sealing ring；Wherein, the sealing cover and cylinder body match；The piston rod passes through sealing cover, and one end extends into cylinder body；
The piston component is connected on piston rod, and is located in cylinder body；The sealing ring is also contained in cylinder body, is set in piston
On bar, and between sealing cover and piston component；Form air chamber between the sealing ring and sealing cover, sealing ring it is another
Side forms hydraulic cavities；Oil-through hole is offered on the sealing ring, a check valve is installed in the oil-through hole, which can make
Hydraulic oil is back to hydraulic cavities in air chamber.
2. as described in claim 1 with the hydraulic shock-absorbing cylinder of sealing ring, it is characterised in that: the intracorporal middle and upper part of cylinder is solid
Surely there is a snap ring, the sealing ring can move between snap ring and sealing cover.
3. as claimed in claim 2 with the hydraulic shock-absorbing cylinder of sealing ring, it is characterised in that: the interior lateral surface of the sealing ring
It is respectively arranged with O-ring, the O-ring is connected on the inner wall and piston rod of cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822062996.5U CN209430665U (en) | 2018-12-10 | 2018-12-10 | A kind of hydraulic shock-absorbing cylinder with sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822062996.5U CN209430665U (en) | 2018-12-10 | 2018-12-10 | A kind of hydraulic shock-absorbing cylinder with sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430665U true CN209430665U (en) | 2019-09-24 |
Family
ID=67971012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822062996.5U Active CN209430665U (en) | 2018-12-10 | 2018-12-10 | A kind of hydraulic shock-absorbing cylinder with sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430665U (en) |
-
2018
- 2018-12-10 CN CN201822062996.5U patent/CN209430665U/en active Active
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