CN206268170U - A kind of safe oil cylinder - Google Patents
A kind of safe oil cylinder Download PDFInfo
- Publication number
- CN206268170U CN206268170U CN201621389289.1U CN201621389289U CN206268170U CN 206268170 U CN206268170 U CN 206268170U CN 201621389289 U CN201621389289 U CN 201621389289U CN 206268170 U CN206268170 U CN 206268170U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- inlet pipe
- oil inlet
- cylinder body
- piston
- 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 - Fee Related
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Abstract
The utility model discloses a kind of safe oil cylinder, including cylinder body, piston, piston rod, fairlead, oil inlet pipe, sealing ring, outer tube, pressure pipe, piston, guiding are placed in cylinder body, and rodless cavity is formed between piston and cylinder body, and one end of piston rod is connected through fairlead with piston；Cylinder body is provided with hydraulic fluid port, and hydraulic fluid port is connected with rodless cavity；One end of oil inlet pipe is tightly connected with hydraulic fluid port, and the other end of oil inlet pipe is free end, and the inner surface of oil inlet pipe is provided with the first internal thread, and the outer surface of oil inlet pipe is provided with external screw thread；Sealing ring is made up of elastomeric material, one end of sealing ring is tightly connected with oil inlet pipe, sealing ring is coaxially arranged with oil inlet pipe, the inner surface of sealing ring is provided with multiple and circularizes arrangement sealing ring, multiple sealing rings arrange that the thickness pressure sealing ring of multiple sealing rings is gradually reduced to the direction of oil inlet pipe along the axially spaced-apart of sealing ring.The utility model is safe.
Description
Technical field
The utility model is related to oil cylinder technical field, more particularly to a kind of safe oil cylinder.
Background technology
With the development of modern industry, hydraulic transmission technology is greatly applied and developed in global many industries, for example
The loading machine of engineering machinery, bull-dozer and road roller etc.；The fork truck of handling machinery, belt conveyer and truck crane etc., build
Build mechanical piling machine, hydraulic jack pacifically machine etc., agricultural machinery, auto industry, mining machinery, metallurgical machinery etc., liquid
Pressure drive apparatus are generally made up of four kinds of elements such as power, execution, control and auxiliary, and oil cylinder belongs to executive component, and hydraulic pressure
Cylinder as realizing straight reciprocating motion, the hydraulic mechanism of oscillating traverse motion, simple structure, reliable operation is also hydraulic system
The middle a very wide range of main executive component of application, it is the fluid pressure that prime mover is driven hydraulic pump generation in mechanical energy form
Can, then become that load can be directly driven and move back and forth, a kind of energy conversion device of the mechanical energy of oscillating traverse motion.
Existing oil cylinder is easily revealed when hydraulic oil is passed in and out, and so as to cause security poor, is further improved.
Utility model content
In order to solve technical problem present in background technology, the utility model proposes a kind of safe oil cylinder,
Effect is good.
A kind of safe oil cylinder, including cylinder body, piston, piston rod, fairlead, oil inlet pipe, sealing ring, outer tube, pressure
Solenoid, piston, guiding are placed in cylinder body, form rodless cavity between piston and cylinder body, one end of piston rod through fairlead with
Piston is connected；Cylinder body is provided with hydraulic fluid port, and hydraulic fluid port is connected with rodless cavity；One end of oil inlet pipe is connected with hydraulic fluid port, oil inlet pipe it is another
It is free end to hold, and the inner surface of oil inlet pipe is provided with the first internal thread, and the outer surface of oil inlet pipe is provided with external screw thread；Sealing ring is by elasticity
Material is made, and one end and the oil inlet pipe of sealing ring are tightly connected, and sealing ring is coaxially arranged with oil inlet pipe, and the inner surface of sealing ring sets
There is multiple to circularize arrangement sealing ring, multiple sealing rings are arranged along the axially spaced-apart of sealing ring, the thickness of multiple sealing rings is from close
Seal ring is gradually reduced to the direction of oil inlet pipe；Outer tube is placed in the outside of oil inlet pipe, and the inner surface of outer tube is provided with and matches with external screw thread
The second internal thread for closing；One end of pressure pipe is connected with outer tube, and pressure pipe is arranged with outer coaxial tube, and above-mentioned sealing ring is located at pressure
On the mobile route of pipe, when pressure pipe is moved along above-mentioned mobile route and contacted with sealing ring, pressure pipe crush seal ring is simultaneously
Sealing ring is caused to contract.
Preferably, interface channel, cushion space are additionally provided with cylinder body, one end of interface channel is connected with rodless cavity, are connected
The other end of passage is connected with cushion space, and cushion space is connected with the external world；
Also include diaphragm seal, spring, diaphragm seal, spring are placed in cushion space, and one end and the cylinder body of diaphragm seal are hinged,
The other end of diaphragm seal is free end, and diaphragm seal is used to close or open interface channel；One end of spring is connected with diaphragm seal, separately
One end is fixedly connected with cylinder body, and both ends of the spring is smaller than its natural length.
Preferably, the inner surface of cylinder body is provided with multiple millimetre-sized counterbores.
Preferably, multiple counterbore entanglement distributions.
Preferably, a diameter of 100-150 millimeters of counterbore.
In the utility model, when needing to being passed through hydraulic oil in rodless cavity or discharging hydraulic oil from hydraulic fluid port, exterior tube is allowed
Part Q is placed in oil inlet pipe, is fixedly connected with outer tube Q using the first internal thread, realizes sealing.
When outer tube Q is placed in oil inlet pipe, sealing ring is fitted with outer tube Q；By rotating outer tube, allow outer tube to
Away from the direction movement of hydraulic fluid port, using pressure pipe slowly crush seal ring, because the thickness of multiple sealing rings is gradually changed, so
Sealing ring can be allowed gradually to be brought into close contact with outer tube Q, it is to avoid outer tube Q is revealed when being connected with hydraulic fluid port, sealing
Good, oil cylinder safety in utilization is good.
The utility model simple structure, is connected quickly, conveniently with outer tube Q, and the effective security for ensureing oil cylinder is carried
Oil cylinder using effect high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged diagram at A in Fig. 1.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutual combination；Below with reference to the accompanying drawings and in conjunction with the embodiments the utility model is elaborated.
Reference picture 1,2：
The utility model proposes a kind of safe oil cylinder, including cylinder body 1, piston 2, piston rod 3, fairlead 4, enter
Oil pipe 5, sealing ring 6, outer tube 7, pressure pipe 8, piston 2, fairlead 4 are placed in cylinder body 1, are formed without bar between piston 2 and cylinder body 1
Chamber 9, one end of piston rod 3 is connected through fairlead 4 with piston；Cylinder body 1 is provided with hydraulic fluid port 10, and hydraulic fluid port 10 is connected with rodless cavity 9；
One end of oil inlet pipe 5 is connected with hydraulic fluid port 10, and the other end of oil inlet pipe 5 is free end, and the inner surface of oil inlet pipe 5 is provided with spiral shell in first
Line, the outer surface of oil inlet pipe 5 is provided with external screw thread；Sealing ring 6 is made up of elastomeric material, and one end and the oil inlet pipe 5 of sealing ring 6 are sealed
Connection, sealing ring 6 is coaxially arranged with oil inlet pipe 5, and the inner surface of sealing ring 6 is provided with multiple and circularizes arrangement sealing ring 11, multiple
Sealing ring 11 arranges along the axially spaced-apart of sealing ring 6, direction from the thickness pressure sealing ring 6 of multiple sealing rings 11 to oil inlet pipe 5 by
It is decrescence small；Outer tube 7 is placed in the outside of oil inlet pipe 5, and the inner surface of outer tube 7 is provided with the second internal thread being engaged with external screw thread；Pressure
One end of solenoid 8 is connected with outer tube 7, and pressure pipe 8 is coaxially arranged with outer tube 7, and above-mentioned sealing ring 6 is located at the mobile road of pressure pipe 8
On footpath, when pressure pipe 8 is moved along above-mentioned mobile route and contacted with sealing ring 6, the crush seal ring 6 of pressure pipe 8 simultaneously causes close
Seal ring 6 is to contract.
In the present embodiment, be additionally provided with interface channel 12, cushion space 13 on cylinder body 1, one end of interface channel 12 with without bar
Chamber 9 connects, and the other end of interface channel 12 is connected with cushion space 13, and cushion space 13 is connected with the external world.
The present embodiment also includes diaphragm seal 14, spring 15, and diaphragm seal 14, spring 15 are placed in cushion space 13, seals
One end of piece 14 is hinged with cylinder body 1, and the other end of diaphragm seal 14 is free end, and diaphragm seal 14 is used to close or open interface channel
12；One end of spring 15 is connected with diaphragm seal 14, and the other end is fixedly connected with cylinder body 1, the two ends of spring 15 be smaller than its from
Right length；When the oil pressure in rodless cavity 9 is excessive, hydraulic oil overcomes the elastic force of spring 15 by interface channel 12, pushes sealing open
Piece 14, hydraulic oil is discharged by interface channel 12, cushion space 13, effectively avoids the generation of accident, improves security.
In the present embodiment, the inner surface of cylinder body 1 is provided with multiple millimetre-sized counterbores；It is living during long-time use
The debris such as abrasive dust can be produced between plug and the side wall of cylinder body 1, by setting multiple counterbores, counterbore can be as micro- storage of hydraulic oil
The nail collection slot of pond or abrasive dust is deposited, lubrication is provided or for the firm friction surface for starting is carried for the contact between piston and the side wall of cylinder body 1
For lubrication, accommodate because the abrasive dust of boundary lubrication or dry friction generation, so as to reduce abrasion, increases the service life.
In the present embodiment, multiple counterbore entanglement distributions；Lubricity is more preferable.
In the present embodiment, a diameter of 100-150 millimeters of counterbore；Undersized increase difficulty of processing, can not be fine
Storage grinding, hydraulic oil；It is oversized very well to store grinding, hydraulic oil.
When needing to being passed through hydraulic oil in rodless cavity or discharging hydraulic oil from hydraulic fluid port, outer tube Q is allowed to be placed in oil inlet pipe
It is interior, it is fixedly connected with outer tube Q using the first internal thread, realize sealing.
When outer tube Q is placed in oil inlet pipe, sealing ring is fitted with outer tube Q；By rotating outer tube, allow outer tube to
Away from the direction movement of hydraulic fluid port, using pressure pipe slowly crush seal ring, because the thickness of multiple sealing rings is gradually changed, so
Sealing ring can be allowed gradually to be brought into close contact with outer tube Q, it is to avoid outer tube Q is revealed when being connected with hydraulic fluid port, sealing
Good, oil cylinder safety in utilization is good.
The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any one skilled in the art in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (5)
1. a kind of safe oil cylinder, it is characterised in that including cylinder body, piston, piston rod, fairlead, oil inlet pipe, sealing
Ring, outer tube, pressure pipe, piston, guiding are placed in cylinder body, and rodless cavity is formed between piston and cylinder body, and one end of piston rod is worn
Fairlead is crossed to be connected with piston；Cylinder body is provided with hydraulic fluid port, and hydraulic fluid port is connected with rodless cavity；One end of oil inlet pipe is connected with hydraulic fluid port, enters
The other end of oil pipe is free end, and the inner surface of oil inlet pipe is provided with the first internal thread, and the outer surface of oil inlet pipe is provided with external screw thread；It is close
Seal ring is made up of elastomeric material, and one end and the oil inlet pipe of sealing ring are tightly connected, and sealing ring is coaxially arranged with oil inlet pipe, sealing ring
Inner surface be provided with multiple and circularize arrangement sealing ring, multiple sealing rings are arranged along the axially spaced-apart of sealing ring, multiple sealing rings
Thickness pressure sealing ring be gradually reduced to the direction of oil inlet pipe；Outer tube is placed in the outside of oil inlet pipe, the inner surface of outer tube be provided with
The second internal thread that external screw thread is engaged；One end of pressure pipe is connected with outer tube, and pressure pipe is arranged with outer coaxial tube, above-mentioned sealing
Ring is located on the mobile route of pressure pipe, and when pressure pipe is moved along above-mentioned mobile route and contacted with sealing ring, pressure pipe is squeezed
Junk ring simultaneously causes sealing ring to contract.
2. safe oil cylinder according to claim 1, it is characterised in that interface channel, buffering are additionally provided with cylinder body
Space, one end of interface channel is connected with rodless cavity, and the other end of interface channel is connected with cushion space, cushion space with it is extraneous
Connection；
Also include diaphragm seal, spring, diaphragm seal, spring are placed in cushion space, and one end and the cylinder body of diaphragm seal are hinged, sealing
The other end of piece is free end, and diaphragm seal is used to close or open interface channel；One end of spring is connected with diaphragm seal, the other end
It is fixedly connected with cylinder body, both ends of the spring is smaller than its natural length.
3. safe oil cylinder according to claim 1, it is characterised in that the inner surface of cylinder body is provided with multiple millimeters
The counterbore of level.
4. safe oil cylinder according to claim 3, it is characterised in that multiple counterbore entanglements distributions.
5. safe oil cylinder according to claim 3, it is characterised in that a diameter of 100-150 millimeters of counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389289.1U CN206268170U (en) | 2016-12-16 | 2016-12-16 | A kind of safe oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389289.1U CN206268170U (en) | 2016-12-16 | 2016-12-16 | A kind of safe oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268170U true CN206268170U (en) | 2017-06-20 |
Family
ID=59046250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621389289.1U Expired - Fee Related CN206268170U (en) | 2016-12-16 | 2016-12-16 | A kind of safe oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681566A (en) * | 2018-12-30 | 2019-04-26 | 宁波长飞亚塑料机械制造有限公司 | A kind of injection molding machine hydraulic damping device |
-
2016
- 2016-12-16 CN CN201621389289.1U patent/CN206268170U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681566A (en) * | 2018-12-30 | 2019-04-26 | 宁波长飞亚塑料机械制造有限公司 | A kind of injection molding machine hydraulic damping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20211216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |