CN201031830Y - Safety oil passageway - Google Patents
Safety oil passageway Download PDFInfo
- Publication number
- CN201031830Y CN201031830Y CNU2007201545294U CN200720154529U CN201031830Y CN 201031830 Y CN201031830 Y CN 201031830Y CN U2007201545294 U CNU2007201545294 U CN U2007201545294U CN 200720154529 U CN200720154529 U CN 200720154529U CN 201031830 Y CN201031830 Y CN 201031830Y
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- Prior art keywords
- oil pipe
- protection
- oil
- pipe
- working
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- 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
A reliable safety pipe consists of the fitting body of the pipe, a pipe core, a pipe sleeve, a work pipe, a protective pipe, the sealing plug of the pipe, a work circuit, a protective circuit, a work hydraulic oil, a protective hydraulic oil, a leakage alarm pressure switch, a high pressure alarm pressure switch, a support frame and a one-way control valve. The protective pipe is sleeved outside the work pipe. The ends of the protective and the work pipes are provided with a sealing plug of the pipe, the protective circuit of the protective pipe is filled with the protective hydraulic oil, the work circuit of the work pipe communicates with the pipe core of the fitting body, the protective pipes, the work pipes and the sealing plugs are arranged in the pipe sleeve of the fitting body and pressed into one integral body with the pipe sleeve, and the leakage alarm pressure switch, the high pressure alarm pressure switch and the one-way control valve are connected in the protective circuit to protect the pipe. The utility model not only detects the situation of the pipe, but also prevents the failure and accident of hydraulic equipment caused by the damage of the pipe.
Description
Affiliated technical field
The utility model relates to the oil pipe in the hydraulic equipment, particularly a kind ofly can detect the oil pipe situation, prevent that oil pipe from damaging the safe oil pipe that causes hydraulic equipment fault and accident to take place.
Background technique
Oil pipe in the hydraulic equipment mainly contains metal tube and sebific duct, metal tube is mainly used in the relatively-stationary pipeline of hydraulic unit, sebific duct is mainly as the pipeline between the parts of two relative movement of hydraulic equipment, as the automotive wheel brake oil pipe, undercarriage oil pipe etc., hydraulic equipment is carried by oil pipe and is transmitted working hydraulic pressure oil and come control actuating component work, oil pipe is widely used in aircraft, automobile, in the hydraulic equipments such as astrovehicle, whether oil pipe is normal, reliably, be directly connected to aircraft, automobile, can astrovehicle and hydraulic equipment proper functioning and equipment and personnel's safety.The oil pipe of prior art is made up of oil connection body and working tubing (working tubing commonly used has metal tube and rubber hose) usually, the oil connection body is contained in the working tubing two ends, when oil pipe causes damage because of material aging, vibration equipment and extraneous friction or bump, explosion will take place or fracture in working tubing, make the working hydraulic pressure fry dried food ingredients in the working tubing give birth to leakage, the lighter makes the hydraulic equipment operational failure, weight person causes serious equipment and casualties, and, undercarriage malfunctioning as braking automobile can't be regained or put down etc.
Summary of the invention
In order to overcome the deficiency that above-mentioned prior art oil pipe Yi Fashengyin material aging, vibration equipment and wearing and tearing, bump cause the oil pipe explosion or fracture, the utility model provides a kind of safe oil pipe, this safe oil pipe sends warning in the time of can not only and fractureing in the oil pipe explosion, guarantee still after can also or fractureing in the oil pipe explosion that hydraulic equipment can proper functioning, avoid the generation of equipment and personnel casualty accidents.
The technical scheme in the invention for solving the technical problem is: a kind of safe oil pipe comprises oil connection body, tube core, pipe box, working tubing, protection oil pipe, oil pipe seal plug, work loop, protection loop, working hydraulic pressure oil, protection hydraulic oil, leakage alarm pressure switch, alarm for high voltage pressure switch, supporting frame and one-way control valve composition.It is characterized in that: the working tubing outside is with the protection oil pipe, and the work loop is arranged in the working tubing, and the work loop of working tubing is communicated with the tube core of oil connection body, flow through in the loop of the working tube core driving hydraulic unit work of oil connection body of working hydraulic pressure oil; In the protection oil pipe protection loop is arranged, in the protection loop, be filled with the protection hydraulic oil that pressure is lower than the working hydraulic pressure oil pressure, in the protection loop, also be connected to the protection circuit pressure variation of detection protection oil pipe and leakage alarm pressure switch, alarm for high voltage pressure switch and the one-way control valve of malfunction alarm; There is the oil pipe seal plug port of protection oil pipe and working tubing; the oil pipe seal plug will protect protection loop in the oil pipe and the work loop in the working tubing to keep apart; the oil pipe seal plug adopts metal; rubber; nylon; oil resisting materials such as curing sealing agent are made; and be stained with by mechanical compression or binder and close formation; the protection oil pipe; working tubing and oil pipe seal plug are placed in the pipe box of oil connection body; and be compacted into one with pipe box; between protection oil pipe and working tubing, supporting frame is arranged; supporting frame makes and keeps certain clearance to be used to charge into protection hydraulic oil between protection oil pipe and the working tubing; supporting frame can be a spirality; also can be bar shaped or particle shape; when the internal diameter size of protecting oil pipe is bigger than working tubing outside dimension, also can be without supporting frame.Working principle of the present utility model is: during the working tubing proper functioning, working hydraulic pressure oil drives hydraulic equipment work by the work loop stream of working tubing through the tube core of oil connection body, is enclosed within the protection hydraulic oil that charged pressure in the protection loop of protection oil pipe in the working tubing outside is lower than the working hydraulic pressure oil pressure; When working tubing because of material aging, vibration or reason generation explosion such as wearing and tearing or when fractureing, the higher working hydraulic pressure oil of pressure in the work loop of working tubing can enter in the protection loop of protecting oil pipe and the pressure in protection loop is raise, the alarm for high voltage pressure switch that be connected in the protection loop of protecting oil pipe this moment is sent alarm for high voltage signal (being the working tubing explosion or the malfunction alarm that fractures), simultaneously, the working hydraulic pressure oil that flows in the protection loop of protecting oil pipe is closed one-way control valve, protect oil pipe to play the effect of working tubing this moment, even working tubing generation explosion or fracture, working hydraulic pressure oil in the work loop of working tubing still keeps its pressure not descend, working hydraulic pressure oil still can drive hydraulic equipment work through the tube core of oil connection body by the work loop stream of working tubing, prevented from because of the working tubing explosion or fractureed to cause the working hydraulic pressure oil leakage, the hydraulic equipment work that pressure decline causes is malfunctioning, has avoided because of malfunctioning device damage that takes place of hydraulic equipment work and personnel casualty accidents; On the other hand, outside friction to the oil pipe surface, bump also is a key factor that causes oil pipe to damage, the utility model is at first impaired when being subjected to outside friction and bump not to be working tubing, but be enclosed within the protection oil pipe in the working tubing outside, when the outside friction, when bump makes the protection pipeline rupture, protection hydraulic oil in the protection loop of protection oil pipe leaks thereupon, the protection circuit pressure of protection oil pipe descends, the leakage alarm pressure switch that is connected in the protection loop of protecting oil pipe is sent leakage alarm signal (promptly protecting the oil pipe breakage alarm), because of the outside friction of quilt, what bump damaged only is the protection oil pipe, working tubing still can proper functioning, has prevented because of the outside friction, the working tubing that bump causes damages to be influenced the hydraulic equipment inefficacy and device damage and personnel casualty accidents takes place; In addition; being enclosed within the working tubing outside protects the pressure of the protection hydraulic oil in the protection loop of oil pipe to be higher than atmospheric pressure; the working tubing tube wall is reduced with respect to the pressure difference of atmosphere; balance the impact of the high-pressure work hydraulic oil in the work loop of working tubing to working tubing, prolonged working life of working tubing.
The beneficial effects of the utility model are, can effectively prevent oil pipe because of material aging, vibrations are tired and outside abrasion and bump cause the oil pipe explosion or fracture the working hydraulic pressure oil leakage that takes place, the fault that pressure descends hydraulic equipment was lost efficacy, avoided the device damage and the personnel casualty accidents that lost efficacy and to take place because of hydraulic equipment, the reliability and the Security of oil pipe have been improved, simultaneously, increase the working life of flexible pipe.The utility model using scope is wide, and use of the present utility model has improved the Security and the reliability of hydraulic equipment greatly.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is first embodiment's side surface configurations figure of the utility model sebific duct.
Fig. 2 is second embodiment's side surface configurations figure of the utility model sebific duct.
Fig. 3 is first embodiment's side surface configurations figure of the utility model metal tube.
Fig. 4 is second embodiment's side surface configurations figure of the utility model metal tube.
Among the figure: 1. oil connection body, 11. tube cores, 12. pipe boxes; 13. nut, 2. working tubing, 21. work loops; 22. working hydraulic pressure oil, 23. supporting frames, 3. protection oil pipe; 31. protection loop; 32. protection hydraulic oil, 4. oil pipe seal plug, 5. leakage alarm pressure switch; 6. alarm for high voltage pressure switch, 7. one-way control valve.
Embodiment
In Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of safe oil pipe comprises oil connection body (1), working tubing (2), protection oil pipe (3), oil pipe seal plug (4), leakage alarm pressure switch (5), alarm for high voltage pressure switch (6) and one-way control valve (7); Protection oil pipe (3) is enclosed within working tubing (2) outside, work loop (21) is arranged in the working tubing (2), the work loop (21) of working tubing (2) is communicated with the tube core (11) of oil connection body (1), flow through in work loop (21) tube core (11) the control hydraulic unit work of oil connection body (1) of working hydraulic pressure oil (22); In the protection oil pipe (3) protection loop (31) is arranged, be filled with protection hydraulic oil (32) in the protection loop (31), be used for detecting leakage alarm pressure switch (5), alarm for high voltage pressure switch (6) and the one-way control valve (7) of protecting loop (31) variation in pressure and malfunction alarm and be connected protection loop (31); There is oil pipe seal plug (4) port of protection oil pipe (3) and working tubing (2); oil pipe seal plug (4) will protect protection loop (31) in the oil pipe (3) and the work loop (21) in the working tubing (2) to keep apart; between protection oil pipe (3) and working tubing (2) supporting frame (23) is arranged, supporting frame (23) makes between protection oil pipe (3) and the working tubing (2) and keeps certain clearance.During proper functioning, working hydraulic pressure oil (22) drives hydraulic equipment work by the flow through tube core (11) of oil connection body (1) of the work loop (21) of working tubing (2), the interior charged pressure in protection loop (31) that is enclosed within the protection oil pipe (3) in working tubing (2) outside is lower than the protection hydraulic oil (32) of working hydraulic pressure oil (22) pressure, at this moment, leakage alarm pressure switch (5) and the alarm for high voltage pressure switch (6) that is connected in the protection loop (31) of protecting oil pipe (3) shows normal state; When working tubing (2) explosion or when fractureing, working hydraulic pressure oil (22) in the work loop (21) of working tubing (2) can enter in the protection loop (31) of protecting oil pipe (3) and the pressure in protection loop (31) is raise, the alarm for high voltage pressure switch (6) that is connected in the protection loop (31) of protecting oil pipe (3) is sent alarm for high voltage signal (being working tubing (2) explosion or the malfunction alarm that fractures), simultaneously, the working hydraulic pressure oil (22) that flows in the protection loop (31) of protecting oil pipe (3) is closed one-way control valve (7), protect oil pipe (3) to play the effect of working tubing (2) this moment, be that working tubing (2) explosion takes place or fractures, working hydraulic pressure oil (22) in the work loop (21) of working tubing (2) still keeps its pressure not descend, and working hydraulic pressure oil (22) still can drive hydraulic equipment work by the flow through tube core (11) of oil connection body (1) of the work loop (21) of working tubing (2); At first impaired when being subjected to outside friction and bump is not working tubing (2), but be enclosed within the protection oil pipe (3) in working tubing (2) outside, when the outside friction, bump makes protection oil pipe (3) when breaking, protection hydraulic oil (32) in the protection loop (31) of protection oil pipe (3) leaks thereupon, protection loop (31) pressure of protection oil pipe (3) descends, the leakage alarm pressure switch (5) that is connected in the protection loop (31) of protecting oil pipe (3) is sent leakage alarm signal (promptly protecting oil pipe (3) breakage alarm), because of being rubbed by outside, what bump damaged only is protection oil pipe (3), and working tubing (2) still can proper functioning; In addition; being enclosed within working tubing (2) outside protects the pressure of the protection hydraulic oil (32) in the protection loop (31) of oil pipe (3) to be higher than atmospheric pressure; working tubing pipe (2) wall is reduced with respect to the pressure difference of atmosphere, balance the impact of the high-pressure work hydraulic oil (22) in the work loop (21) of working tubing (2) to working tubing (2) tube wall.
In first embodiment of sebific duct shown in Figure 1, protection oil pipe (3), working tubing (2) and oil pipe seal plug (4) are placed in the pipe box (12) of oil connection body (1), and are compacted into one with pipe box (12).
In second embodiment of sebific duct shown in Figure 2; protection oil pipe (3), working tubing (2) and oil pipe seal plug (4) are fixed together with the pipe box (12) of oil connection body (1), and are linked into an integrated entity by screw thread on the tube core (11) of oil connection body (1) and tube core (11) by pipe box (12).
In first embodiment of metal tube shown in Figure 3; the nut (13) of locking oil connection body (1); the pipe box (12) of oil connection body (1) is pressed together working tubing (2), protection oil pipe (3) and oil pipe seal plug (4) tube core (11) with oil connection body (1) under nut (13) effect; to be the expanding end that utilizes working tubing (2), protection oil pipe (3) and oil pipe seal plug (4) seal in conjunction with the tube core (11) of flared type oil connection body (1) present embodiment; do not need other Sealing, simple in structure.
In second embodiment of metal tube shown in Figure 4; the nut (13) of locking oil connection body (1); the pipe box (12) of oil connection body (1) is pressed together working tubing (2), protection oil pipe (3) and oil pipe seal plug (4) tube core (11) with oil connection body (1) under nut (13) effect; present embodiment is that pipe box (12) distortion that utilizes oil connection body (1) is blocked working tubing (2), protected oil pipe (3) and oil pipe seal plug (4) to seal; structure advanced person, functional.
Claims (9)
1. safe oil pipe; comprise oil connection body (1); working tubing (2); protection oil pipe (3); oil pipe seal plug (4); leakage alarm pressure switch (5); alarm for high voltage pressure switch (6) and one-way control valve (7); it is characterized in that: protection oil pipe (3) is enclosed within working tubing (2) outside; leakage alarm pressure switch (5); alarm for high voltage pressure switch (6) and one-way control valve (7) are connected in the protection oil pipe (3); oil pipe seal plug (4) is in the port between working tubing (2) and the protection oil pipe (3), working tubing (2); protection oil pipe (3) and oil pipe seal plug (4) are placed in the oil connection body (1).
2. safe oil pipe according to claim 1; it is characterized in that: the protection oil pipe (3) that is enclosed within working tubing (2) outside has a protection loop (31), and the interior charged pressure in protection loop (31) is lower than the protection hydraulic oil (32) of working hydraulic pressure oil (22) pressure in the working tubing (2).
3. safe oil pipe according to claim 1; it is characterized in that: the oil pipe seal plug (4) that is placed on port between working tubing (2) and protection oil pipe (3) can be that metal, rubber, nylon, curing sealing agent are made, and also can form by mechanical compression or adhesive bonds.
4. safe oil pipe according to claim 1 is characterized in that: be connected with the leakage alarm pressure switch (5), alarm for high voltage pressure switch (6) and the one-way control valve (7) that detect protection hydraulic oil (32) pressure in the protection loop (31) of protection oil pipe (3).
5. safe oil pipe according to claim 1, its feature also is: between protection oil pipe (3) and the working tubing (2) supporting frame (23) is arranged, supporting frame (23) can be a spirality, also can be bar shaped or particle shape.
6. safe oil pipe according to claim 1; it is characterized in that: protection oil pipe (3), working tubing (2) and oil pipe seal plug (4) are placed in the pipe box (12) of oil connection body (1); pipe box (12) can be made one with oil connection body (1); also can separate, pipe box (12) and union body (1), working tubing (2), protection oil pipe (3) and oil pipe seal plug (4) are fixed together by nut (13) with oil connection body (1).
7. safe oil pipe according to claim 1 is characterized in that: oil connection body (1) has a tube core that is communicated with hydraulic equipment (11).
8. safe oil pipe according to claim 1, it is characterized in that: work loop (21) is arranged in the working tubing (2), the work loop (21) of working tubing (2) is communicated with the tube core (11) of oil connection body (1), flow through in work loop (21) tube core (11) the control hydraulic unit work of oil connection body (1) of working hydraulic pressure oil (22).
9. safe oil pipe according to claim 1 is characterized in that: working tubing (2) can be a metal tube with protection oil pipe (3), also can be rubber hose, nylon tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201545294U CN201031830Y (en) | 2007-05-09 | 2007-05-09 | Safety oil passageway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201545294U CN201031830Y (en) | 2007-05-09 | 2007-05-09 | Safety oil passageway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031830Y true CN201031830Y (en) | 2008-03-05 |
Family
ID=39163722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201545294U Expired - Fee Related CN201031830Y (en) | 2007-05-09 | 2007-05-09 | Safety oil passageway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031830Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727854A (en) * | 2020-12-25 | 2021-04-30 | 湖南中铁五新重工有限公司 | Hydraulic oil pipe explosion-proof oil injection device and hydraulic system |
-
2007
- 2007-05-09 CN CNU2007201545294U patent/CN201031830Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727854A (en) * | 2020-12-25 | 2021-04-30 | 湖南中铁五新重工有限公司 | Hydraulic oil pipe explosion-proof oil injection device and hydraulic 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: 20080305 Termination date: 20150509 |
|
| EXPY | Termination of patent right or utility model |