CN209129962U - A kind of double sealing piston structure door pump cylinder - Google Patents
A kind of double sealing piston structure door pump cylinder Download PDFInfo
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- CN209129962U CN209129962U CN201821766132.5U CN201821766132U CN209129962U CN 209129962 U CN209129962 U CN 209129962U CN 201821766132 U CN201821766132 U CN 201821766132U CN 209129962 U CN209129962 U CN 209129962U
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- piston
- front cover
- cylinder
- double sealing
- buffer
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Abstract
The utility model discloses a kind of double sealing piston structure doors to pump cylinder, including front cover, cylinder barrel and rear cover, plunger shaft is equipped in cylinder barrel, piston and piston rod are movably equipped in plunger shaft, piston rod one end is connected to piston, the piston rod other end passes through front cover and stretches out in outside plunger shaft, the both ends of piston are respectively equipped with buffer part, front cover and rear cover are respectively equipped with accommodating cavity and air inlet, accommodating cavity is equipped with bumper ring, front cover covers with after and further respectively has buffer channel, front cover covers with after and further respectively has buffer adjusting mechanism, buffer adjusting mechanism includes jam nut, the inner end of jam nut is equipped with conical head, jam nut is equipped with the threaded joints being threadedly engaged with front cover or rear cover, jam nut be connected to front cover and after when covering, conical head is located in buffer channel, flat circle is equipped between piston and cylinder barrel and positioned at flat circle two sides Y-shaped ring.The characteristics of the utility model has structure simple, at low cost, sealing effect and good buffer effect.
Description
Technical field
The utility model relates to pneumatic element technical field, in particular to a kind of double sealing piston structure door pumps cylinder.
Background technique
With the development of industrialized production, pneumatic system has been widely applied in a variety of production and processing systems, wherein gas
Cylinder is the important executive component in pneumatic system.
Car is essentially all and is driven by pneumatic driving pump with passenger doors at present, and the power resources of door pump are in cylinder,
By the reciprocating motion of cylinder piston, the rotation of car door axis is driven, realizes the opening and closing of car door.Door pump cylinder piston the rate of climb and
The rotation speed that car door is swung is to be adjusted using the expansion screw being mounted on a pump cylinder, but in the moment of opening and closing, impact
Power is larger, and the buffering effect of cylinder is poor, and car door also will receive damage, and noise is big.And existing door pumps cylinder seal circle,
In the lower situation of temperature, sealing performance can decline, and sealing effect is deteriorated, and influence the use of cylinder.
Summary of the invention
In view of the deficiencies of the prior art and defect, a kind of double sealing piston structure door pump cylinder is provided, has structure simple,
It is at low cost, the characteristics of sealing effect and good buffer effect.
To achieve the above object, the utility model provides following technical scheme.
A kind of double sealing piston structure door pump cylinder is set in cylinder barrel including the front cover, cylinder barrel and rear cover being fixedly connected sequentially
There is plunger shaft, piston and piston rod is movably equipped in plunger shaft, piston rod one end is connected to piston, before the piston rod other end passes through
Lid stretches out in outside plunger shaft, and the both ends of piston are respectively equipped with buffer part, front cover and rear cover be respectively equipped with accommodating cavity and with accommodating
The air inlet of chamber connection, accommodating cavity are equipped with the bumper ring cooperated with corresponding buffer part, and front cover is covered with after and further respectively had
The buffer channel that air inlet is connected to plunger shaft, front cover cover the buffering tune further respectively having at buffer channel with after
Save mechanism, buffer adjusting mechanism includes jam nut, and the inner end of jam nut is equipped with conical head, jam nut be equipped with front cover or
The threaded joints that rear cover is threadedly engaged, jam nut be connected to front cover and after when covering, conical head is located in buffer channel, work
Flat circle and the y-shaped ring positioned at flat circle two sides are equipped between plug and cylinder barrel.
Further, buffer adjusting mechanism further includes sealing element, sealing element be sheathed on jam nut for front cover or
Rear cover is tightly connected.
Further, the dustband and O-ring seals with piston rod cooperation are embedded on front cover.
Further, cylinder barrel is equipped with magnetic switch slot.
Further, it is covered after and is equipped with inner hole of wagging the tail, inner hole of wagging the tail is equipped with bearing.
Further, wear ring is additionally provided between piston and cylinder barrel.
Further, piston is equipped with magnetite.
Further, front cover is embedded with the copper sheathing being adapted with piston rod.
Further, piston rod is fixedly connected with the piston by screw.
Further, flat circle is made of NBR material, and y-shaped ring is made of TPU material.
The utility model has the following beneficial effects: the cylinder of the utility model, in use, entering piston by inlet charge
Intracavitary, the air pressure increase in plunger shaft pushes piston driving piston rod mobile, when the buffer part of piston is moved at accommodating cavity,
The buffer part and bumper ring of piston cooperate so that cylinder interior forms closed cushion chamber, and the piston chamber air is only capable of passing through at this time
Buffer channel is discharged by exhaust outlet, and by the way that jam nut is arranged at buffer channel, so that the conical head of jam nut is located at
In buffer channel, to play buffer function to piston, piston and front cover and rear cover impact noise not only can be reduced, moreover it is possible to avoid
Piston two sides and front cover and rear cover form back pressure, and control is sensitiveer, and the service life is longer, and jam nut is using locking
Structure can completely eliminate jam nut and cause the risk loosened under the impact of air-flow, jam nut is risen always
To the effect of buffering.Between this outer piston and cylinder barrel be equipped with flat circle and the y-shaped ring positioned at flat circle two sides, flat circle by
NBR material is made, and y-shaped ring is made of TPU material, and flat circle made of NBR material is suitable for extremely cold environment, under low temperature
Elastic property is good, not vulnerable, and y-shaped ring made of TPU material also has good low temperature resistant, corrosion resistance, to make
Cylinder is obtained under the working environment of low temperature, is still able to maintain good leakproofness.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the entirety sectional view of the utility model.
Fig. 3 is the partial sectional view of the utility model.
In figure, 1. cylinder barrels；2. front cover；3. rear cover；4. piston；5. plunger shaft；6. piston rod；7. air inlet；8. buffer part；
9. accommodating cavity；10. bumper ring；11. buffer channel；12. jam nut；13. flat circle；14.Y shape sealing ring；15. dustband；
16.O shape sealing ring；17. magnetic switch slot；18. inner hole of wagging the tail；19. bearing；20. wear ring；21. copper sheathing；22. magnetite.
Specific embodiment
The utility model is further illustrated in conjunction with attached drawing.
Pump cylinder referring to a kind of Fig. 1 to double sealing piston structure door shown in Fig. 3, including be fixedly connected sequentially front cover 2,
Cylinder barrel 1 and rear cover 3 are sealed by rice sealing ring between front cover 2, rear cover 3 and cylinder barrel 1, guarantee its leakproofness, prevent front cover 2, after
Lid 3 and 1 junction gas leakage of cylinder barrel, cylinder barrel 1 is interior to be equipped with plunger shaft 5, is movably equipped with piston 4 and piston rod 6, piston in plunger shaft 5
6 one end of bar is connected to piston 4, and piston rod 6 is fixedly connected by screw with piston 4, and 6 other end of piston rod is stretched out across front cover 2
In outside plunger shaft 5, the both ends of piston 4 are respectively equipped with buffer part 8, front cover 2 and rear cover 3 be respectively equipped with accommodating cavity 9 and with accommodating
The air inlet 7 that chamber 9 is connected to, accommodating cavity 9 are equipped with the bumper ring 10 cooperated with corresponding buffer part 8, go back on front cover 2 and rear cover 3
It is respectively equipped with the buffer channel 11 for being connected to air inlet 7 with plunger shaft 5, further respectively has to be located to buffer on front cover 2 and rear cover 3 and lead to
Buffer adjusting mechanism at road 11, buffer adjusting mechanism include jam nut 12 and sealing element, and the inner end of jam nut 12 is equipped with
Conical head, jam nut 12 are equipped with the threaded joints being threadedly engaged with front cover 2 or rear cover 3, and jam nut 12 is connected to front cover 2
When on rear cover 3, conical head is located in buffer channel 11, and sealing element is sheathed on jam nut 12 and is used for and front cover 2 or rear cover 3
It is tightly connected, flat circle 13 and the y-shaped ring 14 positioned at 13 two sides of flat circle, flat circle 13 is equipped between piston 4 and cylinder barrel 1
It is made of NBR material, y-shaped ring 14 is made of TPU material, and flat circle 13 made of NBR material is suitable for extremely cold environment, low
Elastic property under temperature is good, not vulnerable, and y-shaped ring 14 made of TPU material also has good low temperature resistant, corrosion-resistant
Property.
The cylinder of the utility model, in use, being entered in plunger shaft 5 by 7 air inlet of air inlet, the air pressure in plunger shaft 5
Increase and piston 4 is pushed to drive piston rod 6 mobile, when the buffer part 8 of piston 4 is moved at accommodating cavity 9, the buffer part 8 of piston 4
Cooperate with bumper ring 10 so that cylinder interior forms closed cushion chamber, air is only capable of passing through buffer channel in the plunger shaft 5 at this time
11 are discharged by exhaust outlet, and by the way that jam nut 12 is arranged at buffer channel 11, so that the conical head of jam nut 12 is located at
In buffer channel 11, to play buffer function to piston 4, piston 4 and 3 impact noise of front cover 2 and rear cover not only can be reduced, also
It is avoided that 4 two sides of piston and front cover 2 and rear cover 3 form back pressure, control is sensitiveer, and the service life is longer, and jam nut
12 use anti-loose structure, can completely eliminate jam nut 12 and cause the risk loosened under the impact of air-flow, so that anti-
Loosen the screw a little 12 can play the role of buffering always.
Flat circle 13 and the y-shaped ring 14 positioned at 13 two sides of flat circle, flat are equipped between this outer piston 4 and cylinder barrel 1
Circle 13 is made of NBR material, and y-shaped ring 14 is made of TPU material, and flat circle 13 made of NBR material is suitable for extremely cold ring
Border, the elastic property under low temperature is good, not vulnerable, and y-shaped ring 14 made of TPU material also has good low temperature resistant, resistance to
Corrosivity, so that cylinder under the working environment of low temperature, is still able to maintain good leakproofness.
Further, the dustband 15 and O-ring seals 16 cooperated with piston rod 6,15 energy of dustband are embedded on front cover 2
It enough avoids extraneous dust from entering in cylinder barrel 1, influences cylinder using effect, O-ring seals 16 ensure that its leakproofness, prevent gas
Leakage, it is ensured that stable working performance is additionally provided with wear ring 20 between piston 4 and cylinder barrel 1, reduce piston 4 and move in cylinder barrel 1
When the abrasion that generates, extend the service life of cylinder, front cover 2 is embedded with the copper sheathing 21 being adapted with piston rod 6, and copper sheathing 21 is right
The reciprocating motion of piston rod 6 plays the role of guiding, ensure that the concentricity that piston rod 6 moves, and cylinder barrel 1 is opened equipped with magnetism
Slot 17 is closed, magnetic switch can be inserted into magnetic switch slot 17, eliminate support Design, and magnetic switch can be in magnetic switch slot
Any position on 17 is locked, easy installation and reliable, and piston 4 is equipped with magnetite 22, by magnetite 22 piston 4 is being transported
Cooperate in dynamic process with the magnetic switch on magnetic switch slot 17, can be used as origin, extreme position control signal, set on rear cover 3
It wags the tail inner hole 18, inner hole 18 of wagging the tail is equipped with bearing 19, by adding bearing 19, addition grease lubrication is no longer needed to, using more
It is convenient.
The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range
The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.
Claims (10)
1. a kind of double sealing piston structure door pumps cylinder, including the front cover (2), cylinder barrel (1) and rear cover (3) being fixedly connected sequentially,
Plunger shaft (5) are equipped in cylinder barrel (1), piston (4) and piston rod (6) are movably equipped in plunger shaft (5), piston rod (6) one end connects
It is connected to piston (4), piston rod (6) other end passes through front cover (2) and stretches out in plunger shaft (5) outside, it is characterised in that: piston (4)
Both ends are respectively equipped with buffer part (8), and front cover (2) and rear cover (3) are respectively equipped with accommodating cavity (9) and are connected to accommodating cavity (9)
Air inlet (7), the accommodating cavity (9) are equipped with the bumper ring (10) cooperated with corresponding buffer part (8), front cover (2) and rear cover
(3) buffer channel (11) for being connected to air inlet (7) with plunger shaft (5) is further respectively had on, is gone back on front cover (2) and rear cover (3)
It is respectively equipped with the buffer adjusting mechanism being located at buffer channel (11), the buffer adjusting mechanism includes jam nut (12), is prevented
The loosen the screw a little inner end of (12) is equipped with conical head, and jam nut (12) is equipped with the screw thread being threadedly engaged with front cover (2) or rear cover (3) and connects
Socket part, when jam nut (12) is connected on front cover (2) and rear cover (3), the conical head is located in buffer channel (11), described
Flat circle (13) are equipped between piston (4) and cylinder barrel (1) and are located at the y-shaped ring (14) of flat circle (13) two sides.
2. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: the buffering adjusting machine
Structure further includes sealing element, and sealing element is sheathed on jam nut (12) for being tightly connected with front cover (2) or rear cover (3).
3. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: on the front cover (2)
It is embedded with the dustband (15) and O-ring seals (16) with piston rod (6) cooperation.
4. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: on the cylinder barrel (1)
Equipped with magnetic switch slot (17).
5. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: on the rear cover (3)
Equipped with inner hole of wagging the tail (18), the inner hole of wagging the tail (18) is equipped with bearing (19).
6. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: the piston (4) with
Wear ring (20) are additionally provided between cylinder barrel (1).
7. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: on the piston (4)
Equipped with magnetite (22).
8. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: the front cover (2) is embedding
Equipped with the copper sheathing (21) being adapted with piston rod (6).
9. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: the piston rod (6)
It is fixedly connected by screw with piston (4).
10. a kind of double sealing piston structure door according to claim 1 pumps cylinder, it is characterised in that: the flat circle
(13) it is made of NBR material, the y-shaped ring (14) is made of TPU material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821766132.5U CN209129962U (en) | 2018-10-30 | 2018-10-30 | A kind of double sealing piston structure door pump cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821766132.5U CN209129962U (en) | 2018-10-30 | 2018-10-30 | A kind of double sealing piston structure door pump cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209129962U true CN209129962U (en) | 2019-07-19 |
Family
ID=67233197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821766132.5U Active CN209129962U (en) | 2018-10-30 | 2018-10-30 | A kind of double sealing piston structure door pump cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209129962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183433A (en) * | 2021-12-10 | 2022-03-15 | 建湖县八达液压机械有限公司 | Novel gas port buffering device's hydraulic cylinder |
-
2018
- 2018-10-30 CN CN201821766132.5U patent/CN209129962U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183433A (en) * | 2021-12-10 | 2022-03-15 | 建湖县八达液压机械有限公司 | Novel gas port buffering device's hydraulic cylinder |
| CN114183433B (en) * | 2021-12-10 | 2024-02-13 | 建湖县八达液压机械有限公司 | Hydraulic cylinder of air port buffer device |
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