CN201973231U - Hollow piston rod - Google Patents
Hollow piston rod Download PDFInfo
- Publication number
- CN201973231U CN201973231U CN2011200053636U CN201120005363U CN201973231U CN 201973231 U CN201973231 U CN 201973231U CN 2011200053636 U CN2011200053636 U CN 2011200053636U CN 201120005363 U CN201120005363 U CN 201120005363U CN 201973231 U CN201973231 U CN 201973231U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- piston
- hollow
- connecting screw
- rod body
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a hollow piston rod, which comprises a piston rod body, a piston core bar and a connecting screw, wherein the piston rod body has a hollow cylinder structure. The hollow piston rod has the advantages of simple structure, light weight, low manufacturing cost, high practicability, long service life, and the like. By adopting the hollow structure, the piston rod not only reduces the required materials, so as to greatly reduce the manufacturing cost, but also greatly lightens the weight of the piston rod, so as to reduce the inertia during the movement of the piston rod, weaken the friction between the piston rod and an oil seal, and prolong the service life of the piston rod. The weight of the piston rod is lightened and the required materials are lessened, but rather strong rigidity is ensured. Furthermore, the frictional pressure welding manner utilizes the friction force to generate heat and produce weld seam, and can enable the connection of the piston core bar, the connecting screw and the piston rod body to the meet the requirement of the piston rod on strength.
Description
Technical field
The utility model relates to a kind of piston rod, specifically, relates to a kind of box type piston bar that is used for the self locking type air spring.
Background technique
At present, general-utility car mostly is solid construction greatly with the body of piston rod, not only the material consumption of piston rod body is relatively many with piston rod for the automobile of solid construction, be the manufacture cost height, the most important thing is, as can be known according to physical property, the weight of piston rod own more heavily is that quality is big more, the inertia of its generation will be big more, and the friction number of times that inertia is got between the oil sealing that conference makes piston rod and cylinder body is more frequent, thereby shorten the working life of piston rod greatly.New-type vehicle requires seat can lock at an arbitrary position, and the solid piston bar is merely able to regulate aspect height and locking, and substantially horizontal all immobilizes in order to guarantee safety, like this, can not guarantee the comfort level of seat.More present high-grade automotive seat such as rail motor set, high-grade automobile is partial to the travelling comfort of seat, generally uses the self-locking air spring, requires gas bar arbitrary position lockable, and the existing piston bar can not satisfy its requirement fully.
The model utility content
The utility model mostly is solid construction greatly at existing piston rod, fabricating cost height, working life problem such as weak point, travelling comfort difference, it is stronger to have proposed a kind of rigidity, the piston rod self inertia is little, thereby increases the piston rod piston rod construction in working life.
The technical solution of the utility model is: a kind of box type piston bar, comprise piston rod body, piston core bar and connecting screw rod, and described piston rod body is the round column structure of hollow.
Preferably: the Placement of described piston core bar, connecting screw rod and piston rod body is the friction pressure welding.
Preferably: described piston core bar is for revolving the riveting form.
Preferably: described connecting screw rod is a thread forms.
Preferably: described piston rod body surface is through Overheating Treatment.
The beneficial effects of the utility model are: the utlity model has simple in structure, in light weight, advantage such as fabricating cost is low, practical, long service life.Piston rod is set to hollow-core construction, has not only reduced material consumption, thereby has significantly reduced fabricating cost, the weight of piston rod also alleviates significantly simultaneously, the inertia of piston rod in movement process is reduced, thereby the friction of piston rod and oil sealing weaken, and has prolonged the working life of piston rod.Though the weight saving of piston rod, material tails off, and can guarantee stronger rigidity equally.In addition, thus the friction pressure welding manner is to utilize frictional force to produce heat to produce weld seam.This welding manner can make piston core bar, connecting screw rod and the requirement of satisfying piston rod intensity being connected of piston rod body.
Description of drawings
Accompanying drawing 1 is the cross-sectional view of the utility model specific embodiment.
Embodiment
Embodiment of the present utility model is as follows: a kind of box type piston bar, comprise the surface through heat treated piston rod body 1, piston core bar 2 and connecting screw rod 3, and described piston rod body 1 is the round column structure of hollow; Piston core bar 2, connecting screw rod 3 are the friction pressure welding with the Placement of piston rod body 1; Piston core bar 2 is connected with piston by revolving the riveting mode, and connecting screw rod 3 is connected threadably with cylinder head.
Above illustrated embodiment is only with for conveniently illustrating the utility model, and at technological scheme category described in the utility model, the person of ordinary skill in the field does various simple deformation and modification, all should be included in the above claim.
Claims (5)
1. a box type piston bar comprises piston rod body (1), piston core bar (2) and connecting screw rod (3), and it is characterized in that: described piston rod body (1) is the round column structure of hollow.
2. box type piston bar as claimed in claim 1 is characterized in that: described piston core bar (2), connecting screw rod (3) are the friction pressure welding with the Placement of piston rod body (1).
3. box type piston bar as claimed in claim 1 is characterized in that: described piston core bar (2) is for revolving the riveting form.
4. box type piston bar as claimed in claim 1 is characterized in that: described connecting screw rod (3) is a thread forms.
5. as any described box type piston bar of claim 1 to 4, it is characterized in that: described piston rod body (1) surface is through Overheating Treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200053636U CN201973231U (en) | 2011-01-10 | 2011-01-10 | Hollow piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200053636U CN201973231U (en) | 2011-01-10 | 2011-01-10 | Hollow piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973231U true CN201973231U (en) | 2011-09-14 |
Family
ID=44578334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200053636U Expired - Fee Related CN201973231U (en) | 2011-01-10 | 2011-01-10 | Hollow piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414520A (en) * | 2015-11-30 | 2016-03-23 | 宜兴市佳晨压铸机制造有限公司 | Injection piston rod for die-casting machine |
| CN107243614A (en) * | 2017-05-16 | 2017-10-13 | 蚌埠隆华压铸机有限公司 | Energy-saving and high-speed injection pressure charging system |
-
2011
- 2011-01-10 CN CN2011200053636U patent/CN201973231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414520A (en) * | 2015-11-30 | 2016-03-23 | 宜兴市佳晨压铸机制造有限公司 | Injection piston rod for die-casting machine |
| CN107243614A (en) * | 2017-05-16 | 2017-10-13 | 蚌埠隆华压铸机有限公司 | Energy-saving and high-speed injection pressure charging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |