CN204921813U - Dustproof air spring - Google Patents
Dustproof air spring Download PDFInfo
- Publication number
- CN204921813U CN204921813U CN201520509460.7U CN201520509460U CN204921813U CN 204921813 U CN204921813 U CN 204921813U CN 201520509460 U CN201520509460 U CN 201520509460U CN 204921813 U CN204921813 U CN 204921813U
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- steel cylinder
- piston rod
- air spring
- joint
- sleeve
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Abstract
The utility model discloses a dustproof air spring, including steel cylinder and piston rod, the piston rod cover is established in the steel cylinder, wherein, still includes: steel cylinder sleeve and piston rod sleeve, the outside at the steel cylinder is established to steel cylinder cover barrel casing, the outside at the piston rod is established to piston rod cover barrel casing, the telescopic first end of steel cylinder is used for linking to each other with body connection's one end is fixed with the steel cylinder, the telescopic first end of piston rod is used for linking to each other with vehicle door connection's one end is fixed with the piston rod, the outside at the telescopic second of piston rod end is established to the telescopic second pot head of steel cylinder. The utility model provides a dustproof air spring passes through to cooperate between steel cylinder sleeve inner wall and the piston rod sleeve outer wall, makes steel cylinder sleeve and piston rod sleeve cover establish the outside at steel cylinder and piston rod to form seal structure, prevented outside dust or pollutant entering steel cylinder inside, avoided dust or pollutant to the wearing and tearing of steel cylinder inside seal circle, improved the stability of air spring operation, prolonged the life of air spring.
Description
Technical field
The utility model relates to a kind of air spring, particularly relates to a kind of dust-proof air spring.
Background technique
Air spring is a kind of widely used power plant, is commonly used on automobile, and automobile engine cover and rear tailgate etc. can realize automatic open function under the effect of air spring.
Fig. 1 is the schematic diagram that in prior art, air spring is applied on automobile rear end door, as shown in Figure 1, one end of air spring 4 ＇ is fixed on the mounting points B of rear tailgate 5, the other end is fixed on the mounting points A of vehicle body 6, by operation rear tailgate 5, under the effect of air spring 4 ＇, rear tailgate 5 realizes opening and closing.
Fig. 2 is the structural representation of air spring in prior art, and as shown in Figure 2, air spring 4 ＇ of the prior art mainly comprises the structures such as ball-and-socket type joint, steel cylinder 1, piston rod 2, and piston rod 2 is set in steel cylinder 1, is provided with seal ring between piston rod 2 and steel cylinder 1.The vehicle body 6 be connected with air spring 4 ＇ and rear tailgate 5 are fixed with ball stud (not shown), and the bulb of bolt directly inserts in the ball-and-socket type joint of air spring 4 ＇, namely can complete installation.The piston rod 2 of air spring 4 ＇ can shorten along steel cylinder 1 axial elongation, and steel cylinder 1 storage inside pressurized gas, makes piston rod 2 have outside thrust.After people opens rear tailgate 5 several angle, rear tailgate 5 automatically can be opened under the thrust of air spring 4 ＇.
Air spring of the prior art, when external environment condition is severe, the impurity such as external dust can be brought in steel cylinder by the piston rod of air spring.Along with frequency of usage increases, impurity can constantly wear and tear gas spring sealing ring, causes gas leak of the oil leakage etc. to cause the inefficacy of air spring function.
Model utility content
The utility model provides a kind of dust-proof air spring, to solve the problem of prior art, improves the stability that air spring runs, extends the working life of air spring.
The utility model provides a kind of dust-proof air spring, wherein, comprising:
Steel cylinder and piston rod, described piston rod is set in described steel cylinder, and described dust-proof air spring also comprises: steel cylinder sleeve and piston rod sleeve;
Described steel cylinder jacket casing is located at the outside of described steel cylinder;
Described piston rod sleeve is set in the outside of described piston rod;
One end that first end and the described steel cylinder of described steel cylinder sleeve are used for being connected with vehicle body is fixedly linked;
One end that first end and the described piston rod of described piston rod sleeve are used for being connected with car door is fixedly linked;
Second end of described steel cylinder sleeve is set in the outside of the second end of described piston rod sleeve.
Dust-proof air spring as described above, wherein, preferably: described dust-proof air spring also comprises steel cylinder muff joint, described steel cylinder muff joint and described steel cylinder integrated injection molding, and described steel cylinder muff joint and described steel cylinder sleeve are adhesively fixed.
Dust-proof air spring as described above, wherein, preferably: also comprise piston rod sleeve joint, described piston rod sleeve joint and described piston rod integrated injection molding, and described piston rod sleeve joint and described piston rod sleeve are spirally connected fixing.
Dust-proof air spring as described above, wherein, preferably: also comprise seal ring, described seal ring is fixedly installed between described steel cylinder sleeve and described piston rod sleeve.
Dust-proof air spring as described above, wherein, preferably: described seal ring is fixedly bonded between described steel cylinder sleeve and described piston rod sleeve by glue.
Dust-proof air spring as described above, wherein, preferably: the material of described seal ring is rubber.
Dust-proof air spring as described above, wherein, preferably: the material of described steel cylinder sleeve, piston rod sleeve, steel cylinder muff joint and piston rod sleeve joint is plastics.
Dust-proof air spring as described above, wherein, preferably: also comprise the first joint and the second joint, described first joint is fixedly installed on described steel cylinder one end for being connected with vehicle body, and described second joint is fixedly installed on described piston rod one end for being connected with car door.
Dust-proof air spring as described above, wherein, preferably: described first joint and the second joint are ball-and-socket type joint.
Dust-proof air spring as described above, wherein, preferably: described first joint is all fixedly connected with car door with vehicle body by ball stud respectively with described second joint.
The dust-proof air spring that the utility model provides is by coordinating between steel cylinder sleeve lining and piston rod sleeve outer wall, steel cylinder sleeve and piston rod sleeve is made to be set in the outside of steel cylinder and piston rod, thus formation sealing configuration, can prevent external dust or pollutant from entering steel cylinder inside at the piston rod of air spring along in steel cylinder axial elongation shortening process, avoid dust or pollutant to the wearing and tearing of steel cylinder inner seal ring, thus efficiently solve the impurity destruction air spring sealings such as external dust, cause the problem of disabler, improve the stability that air spring runs, extend the working life of air spring.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that in prior art, air spring is applied on automobile rear end door;
Fig. 2 is the structural representation of air spring in prior art;
The dust-proof air spring structural representation that Fig. 3 provides for the utility model embodiment;
Fig. 4 is the partial structurtes enlarged view of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is described in detail.
The dust-proof air spring structural representation that Fig. 3 provides for the utility model embodiment, as shown in Figure 3, the utility model embodiment provides a kind of dust-proof air spring, comprises steel cylinder 1 and piston rod 2.
Described piston rod 2 is set in described steel cylinder 1, and described dust-proof air spring also comprises: steel cylinder sleeve 101 and piston rod sleeve 201; Described steel cylinder sleeve 101 is set in the outside of described steel cylinder 1; Described piston rod sleeve 201 is set in the outside of described piston rod 2; The first end of described steel cylinder sleeve 101 is fixedly linked for the one end be connected with vehicle body with described steel cylinder 1; The first end of described piston rod sleeve 201 is fixedly linked for the one end be connected with car door with described piston rod 2; Second end of described steel cylinder sleeve 101 is set in the outside of the second end of described piston rod sleeve 201.
Steel cylinder sleeve 101 and piston rod sleeve 201 can be all the cylindrical tube shapes of steel, and steel cylinder conventional in prior art can be utilized to make.Please refer to Fig. 3, in the dust-proof air spring working procedure of the utility model embodiment, piston rod sleeve 201 and piston rod 2 together carry out axial motion, now, piston rod 2 slides along the inwall of steel cylinder 1, and piston rod sleeve 201 slides along the inwall of steel cylinder 101, and steel cylinder 1 and piston rod 2 cover are established by piston rod sleeve 201 and steel cylinder sleeve 101 jointly, effectively prevent dust to be bonded on piston rod 2 to bring in steel cylinder 1, avoid the air spring inefficacy because dust wearing and tearing steel cylinder 1 inner seal rings causes.
Mode fixing between steel cylinder sleeve and steel cylinder can have multiple, preferably, dust-proof air spring also comprises steel cylinder muff joint 102, described steel cylinder muff joint 102 and described steel cylinder 1 integrated injection molding, and described steel cylinder muff joint 102 and described steel cylinder sleeve 101 are adhesively fixed.Particularly, the installation that steel cylinder muff joint 102 1 aspect is used for dust-proof air spring and vehicle body is located, on the other hand then for fixing between steel cylinder 1 and steel cylinder sleeve 101, steel cylinder muff joint 102 is injection-moulded in one end that steel cylinder is used for being connected with vehicle body, put steel cylinder sleeve 101 subsequently, it is cemented fixed that the end face of steel cylinder muff joint 102 and the end face glue of steel cylinder sleeve 101 glue.
Similarly, means of fixation between piston rod sleeve and piston rod also can have multiple, preferably, dust-proof air spring also comprises piston rod sleeve joint 202, described piston rod sleeve joint 202 and described piston rod 2 integrated injection molding, and described piston rod sleeve joint 202 and described piston rod sleeve 201 are spirally connected fixing.Particularly, when assembling dust-proof air spring, by the one end being injection-moulded in piston rod 2 with externally threaded piston rod sleeve joint 202 and being used for being connected with car door, put piston rod sleeve 201.Mated with the internal thread of piston rod sleeve 201 by the outside thread of piston rod attachment 202, thus piston rod 2 and piston rod sleeve 201 are connected and fixed.
Fig. 4 is the partial structurtes enlarged view of Fig. 3, preferably, the dust-proof air spring that the utility model embodiment provides also comprises seal ring 3, and referring to Fig. 3 and Fig. 4, described seal ring 3 is fixedly installed between described steel cylinder sleeve 101 and described piston rod sleeve 201.
With seal ring 3 on steel cylinder sleeve 101, can prevent external dust or pollutant from entering the inside of steel cylinder 1 at piston rod 2 along in steel cylinder 1 axial elongation shortening process.
Further, described seal ring 3 is fixedly bonded between described steel cylinder sleeve 101 and described piston rod sleeve 201 by glue.Mighty bond can be adopted to carry out bonding, its sealing kept can ensure at least three years.Interference fit between seal ring 3 and piston rod sleeve 201, plays good seal action.
Preferably, the material of described seal ring 3 is rubber.The material of seal ring 3 is rubber, ensure that seal ring 3 has suitable mechanical strength and is easy to machine shaping.It will be appreciated by persons skilled in the art that the material of seal ring 3 is not limited to this, as long as the sealability between steel cylinder sleeve 101 and piston rod sleeve 201 can be ensured.
Conveniently process, can arrange described steel cylinder sleeve 101, piston rod sleeve 201, steel cylinder muff joint 102 and piston rod sleeve joint 202 material be plastics.The material of steel cylinder sleeve 101, piston rod sleeve 201, steel cylinder muff joint 102 and piston rod sleeve joint 202 is plastics and is convenient to machine shaping, and injection moulding performance is good, is convenient to connect.
On the basis of above-described embodiment, described air spring also comprises the first joint 103 and the second joint 203, described first joint 103 is fixedly installed on described steel cylinder 1 one end for being connected with vehicle body, and described second joint 203 is fixedly installed on described piston rod 2 one end for being connected with car door.
Preferably, described first joint 103 and the second joint 203 are ball-and-socket type joint.First joint 103 and the second joint 203 can also be other shapes, as long as be convenient to be bolted with vehicle body and car door.
Preferably, described first joint 103 is all fixedly connected with car door with vehicle body by ball stud respectively with described second joint 203.Mode with bolts can facilitate the dismounting of air spring, thus provides convenience for the maintenance of air spring and replacing.
It will be understood by those skilled in the art that, the dust-proof air spring that the utility model embodiment provides is not limited to the connection being applied in car door and vehicle body, it can also be applied in the connection of the miscellaneous parts such as such as automobile engine cover and vehicle body, and those skilled in the art can be out of shape according to specific needs.
Above, be described in detail in conjunction with specific embodiments to the technical solution of the utility model, described specific embodiment understands thought of the present utility model for helping.The derivation that those skilled in the art make on the basis of the utility model specific embodiment and modification also belong within the utility model protection domain.
Claims (10)
1. a dust-proof air spring, comprises steel cylinder and piston rod, and described piston rod is set in described steel cylinder, it is characterized in that, described dust-proof air spring also comprises: steel cylinder sleeve and piston rod sleeve;
Described steel cylinder jacket casing is located at the outside of described steel cylinder;
Described piston rod sleeve is set in the outside of described piston rod;
One end that first end and the described steel cylinder of described steel cylinder sleeve are used for being connected with vehicle body is fixedly linked;
One end that first end and the described piston rod of described piston rod sleeve are used for being connected with car door is fixedly linked;
Second end of described steel cylinder sleeve is set in the outside of the second end of described piston rod sleeve.
2. dust-proof air spring according to claim 1, is characterized in that: also comprise steel cylinder muff joint, described steel cylinder muff joint and described steel cylinder integrated injection molding, and described steel cylinder muff joint and described steel cylinder sleeve are adhesively fixed.
3. dust-proof air spring according to claim 2, is characterized in that: also comprise piston rod sleeve joint, described piston rod sleeve joint and described piston rod integrated injection molding, and described piston rod sleeve joint and described piston rod sleeve are spirally connected fixing.
4., according to the arbitrary described dust-proof air spring of claim 1-3, it is characterized in that: also comprise seal ring, described seal ring is fixedly installed between described steel cylinder sleeve and described piston rod sleeve.
5. dust-proof air spring according to claim 4, is characterized in that: described seal ring is fixedly bonded between described steel cylinder sleeve and described piston rod sleeve by glue.
6. dust-proof air spring according to claim 5, is characterized in that: the material of described seal ring is rubber.
7. dust-proof air spring according to claim 3, is characterized in that: the material of described steel cylinder sleeve, piston rod sleeve, steel cylinder muff joint and piston rod sleeve joint is plastics.
8. according to the arbitrary described dust-proof air spring of claim 1-3, it is characterized in that: also comprise the first joint and the second joint, described first joint is fixedly installed on described steel cylinder one end for being connected with vehicle body, and described second joint is fixedly installed on described piston rod one end for being connected with car door.
9. dust-proof air spring according to claim 8, is characterized in that: described first joint and the second joint are ball-and-socket type joint.
10. dust-proof air spring according to claim 9, is characterized in that: described first joint is all fixedly connected with car door with vehicle body by ball stud respectively with described second joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520509460.7U CN204921813U (en) | 2015-07-14 | 2015-07-14 | Dustproof air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520509460.7U CN204921813U (en) | 2015-07-14 | 2015-07-14 | Dustproof air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921813U true CN204921813U (en) | 2015-12-30 |
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ID=54970943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520509460.7U Active CN204921813U (en) | 2015-07-14 | 2015-07-14 | Dustproof air spring |
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| CN (1) | CN204921813U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673765A (en) * | 2016-04-11 | 2016-06-15 | 常州气弹簧有限公司 | Dustproof type gas spring |
| CN106968825A (en) * | 2017-03-03 | 2017-07-21 | 华晨汽车集团控股有限公司 | A kind of twin cylinder engine lid supports gas spring |
-
2015
- 2015-07-14 CN CN201520509460.7U patent/CN204921813U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673765A (en) * | 2016-04-11 | 2016-06-15 | 常州气弹簧有限公司 | Dustproof type gas spring |
| CN106968825A (en) * | 2017-03-03 | 2017-07-21 | 华晨汽车集团控股有限公司 | A kind of twin cylinder engine lid supports gas spring |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |