CN202627776U - Balance drawbar - Google Patents
Balance drawbar Download PDFInfo
- Publication number
- CN202627776U CN202627776U CN2012202945365U CN201220294536U CN202627776U CN 202627776 U CN202627776 U CN 202627776U CN 2012202945365 U CN2012202945365 U CN 2012202945365U CN 201220294536 U CN201220294536 U CN 201220294536U CN 202627776 U CN202627776 U CN 202627776U
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- CN
- China
- Prior art keywords
- piston
- metering orifice
- rod
- aperture
- spheroid
- 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 balance drawbar which comprises a bar body, wherein a front linkage head and a rear linkage head are arranged at the front end and back end of the bar body respectively, the bar body is filled with hydraulic oil, a floating piston and a piston are arranged in the bar body, and the piston is arranged between the floating piston and the front linkage head; the piston is connected with the front linkage head by a piston rod; a front and rear through flow hole, which has small aperture on the front side and large aperture on the rear side, is formed on the piston; a sphere is arranged in the flow hole; the diameter of the sphere is between the aperture of the front side and the aperture of the rear side of the flow hole; an oil outlet groove communicated with the flow hole is formed on the outside diameter of the piston; and a cover sheet with a hole for preventing the sphere from rolling out is arranged at the end part of the front side of the piston. In use, the balance drawbar can play a role in damping balance, and can be easily and freely operated during shrinkage and closing.
Description
Technical field
The utility model belongs to mechanical field, specifically a kind of balancing pull rod that can make things convenient for return.
Background technology
Balancing pull rod is used for large-scale hatch door, can play the effect of steadily opening, and is easy and convenient when closing, and alleviates resistance.Resistance was very big when resistance gauge was originally closed, and can not make things convenient for return.
Summary of the invention
In order to overcome the problem that prior art exists, the purpose of the utility model provides a kind of balancing pull rod, and this balancing pull rod can accomplish to hinder the effect of tail balance in use, can when contraction is closed, operate easily again.
The purpose of the utility model realizes through following technical scheme:
A kind of balancing pull rod comprises the body of rod, and connector and back connector are provided with hydraulic oil in its body of rod before lever front end and rear end are respectively equipped with, and it is characterized in that: in the body of rod, be provided with floating piston and piston, piston is arranged between floating piston and the preceding connector; Piston is connected with preceding connector through piston rod; Connect before and after on piston, being provided with and the aperture, front side is little, the big metering orifice of back lateral aperture, in metering orifice, be provided with spheroid, and the diameter of spheroid is between the aperture at metering orifice two ends; On the external diameter of piston, be provided with the oil groove that goes out that communicates with metering orifice; Anterior end at piston is provided with the cover plate with holes that prevents that spheroid from rolling out.
In the utility model, the metering orifice that said front and back connect is two, has promptly set four metering orifices at the two ends of piston, and wherein two stepped holes are bigger, can place steel ball, and the rear end can not spill.
Going out oil groove communicates with metering orifice and is positioned at spheroid and locate in permanent position, metering orifice top.When pulling during piston rod movement, steel ball will move to permanent position, top in the metering orifice, close out being connected of oil groove and metering orifice, have only other two less metering orifice oil spillings, make its damping balance effect.When needs shrink, motion in the other direction, steel ball will move to cover plate one end, expose the oil spilling groove, and oil mass increases fast, and operating personnel can free and relaxedly regain piston rod.
Compared with prior art, the utility model can accomplish to hinder the effect of tail balance in use, can when contraction is closed, operate easily again, and is easy to use, efficient is high.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
The described balancing pull rod of a kind of the utility model is seen Fig. 1, and this balancing pull rod comprises the body of rod 1, and connector 11 and back connector 12 are provided with hydraulic oil 13 in its bar 1 body before the body of rod 1 front-end and back-end are respectively equipped with.In the body of rod 1, be provided with floating piston 2 and piston 3, floating piston 2 is installed in the desired location near body of rod rear end.Piston 3 is arranged between floating piston 2 and the preceding connector 11; Piston 3 is connected 11 through piston rod 4 with preceding connector.Connect before and after on piston 3, being provided with and the aperture, front side is little, the big metering orifice of back lateral aperture, in metering orifice, be provided with spheroid 5, and the diameter of spheroid 5 is between the aperture at metering orifice two ends.The metering orifice that front and back connect is two, has promptly set four metering orifices at the two ends of piston, and wherein two of the front side apertures are bigger, can place steel ball, and the aperture of rear side is less can not to be spilt.On the external diameter of piston 3, be provided with the oil groove that goes out that communicates with metering orifice; Anterior end at piston 3 is provided with the cover plate with holes 6 that prevents that spheroid 5 from rolling out.
Going out oil groove communicates with metering orifice and is positioned at spheroid and locate in permanent position, metering orifice top.When pulling during piston rod movement, steel ball will move to permanent position, top in the metering orifice, close out being connected of oil groove and metering orifice, have only other two less metering orifice oil spillings, make its damping balance effect.When needs shrink, motion in the other direction, steel ball will move to cover plate one end, expose the oil spilling groove, and oil mass increases fast, can free and relaxed piston rod be regained.
Claims (3)
1. balancing pull rod; Comprise the body of rod (1); Be respectively equipped with preceding connector (11) and back connector (12) in the front-end and back-end of the body of rod (1); In its body of rod (1), be provided with hydraulic oil (13), it is characterized in that: in the body of rod (1), be provided with floating piston (2) and piston (3), piston (3) is arranged between floating piston (2) and the preceding connector (11); Piston (3) is connected with preceding connector (11) through piston rod (4); Connect before and after on piston (3), being provided with and the aperture, front side is little, the big metering orifice of back lateral aperture, in metering orifice, be provided with spheroid (5), and the diameter of spheroid (5) is between the aperture at metering orifice two ends; On the external diameter of piston (3), be provided with the oil groove that goes out that communicates with metering orifice; Anterior end at piston (3) is provided with the cover plate with holes (6) that prevents that spheroid (5) from rolling out.
2. balancing pull rod according to claim 1 is characterized in that: the metering orifice that said front and back connect is two.
3. balancing pull rod according to claim 1 is characterized in that: go out oil groove and communicate with metering orifice and be positioned at spheroid (5) and locate in permanent position, metering orifice top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202945365U CN202627776U (en) | 2012-06-21 | 2012-06-21 | Balance drawbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202945365U CN202627776U (en) | 2012-06-21 | 2012-06-21 | Balance drawbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202627776U true CN202627776U (en) | 2012-12-26 |
Family
ID=47380984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202945365U Expired - Fee Related CN202627776U (en) | 2012-06-21 | 2012-06-21 | Balance drawbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202627776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691452A (en) * | 2012-06-21 | 2012-09-26 | 江苏亚希维医疗器械有限责任公司 | Balanced pull rod |
-
2012
- 2012-06-21 CN CN2012202945365U patent/CN202627776U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691452A (en) * | 2012-06-21 | 2012-09-26 | 江苏亚希维医疗器械有限责任公司 | Balanced pull rod |
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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: 20121226 Termination date: 20150621 |
|
| EXPY | Termination of patent right or utility model |