CN202007980U - Pressure relief device for lubricating pump - Google Patents
Pressure relief device for lubricating pump Download PDFInfo
- Publication number
- CN202007980U CN202007980U CN2011201428136U CN201120142813U CN202007980U CN 202007980 U CN202007980 U CN 202007980U CN 2011201428136 U CN2011201428136 U CN 2011201428136U CN 201120142813 U CN201120142813 U CN 201120142813U CN 202007980 U CN202007980 U CN 202007980U
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- China
- Prior art keywords
- valve body
- oil
- pressure relief
- oil return
- relief device
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Abstract
The utility model discloses a pressure relief device for a lubricating pump, which is characterized in that: the pressure relief device comprises a valve body (1) and an oil return port joint (2), wherein an oil inlet (4) is arranged at the bottom part of the valve body; an opening of an internal thread is arranged at the top end of the valve body (1), and the oil return port joint (2) is provided with the internal thread of the valve body; the oil return port joint (2) is provided with an axial oil return channel (7), the axial oil return channel (7) stretches in an inner cavity of the valve body (1), an elastic structure (3) and a floating ball (9) which are arranged in the oil return channel (7) maintain ordinary-state contact, and the oil return channel (7) is blocked off by the floating ball (3) under the condition of ordinary state; an oil return outlet (8) is formed at the end of the oil return channel; an umbrella-shaped valve (6) is arranged at the position in the inner cavity of the valve body (1) near the oil inlet (4), and an oil outlet loop (5) is arranged on the wall of the inner cavity of the valve body (1). With the advantages of simple structure, high efficiency and good performance, the pressure relief device which is convenient to use and maintain can thoroughly solve the leaking problem of lubricating oil when in pressure relief.
Description
Technical field
The utility model relates to a kind of lubricant pump pressure relief device, is a kind of auxiliary device of oil header, can be used for the auto lubrication system.Belong to mechanical equipment technical field.
Background technique
The positive displacement oil header with its reliability height, oil extraction is accurate, cost is low and less demanding and be used widely in lubrication technical field to lubricant pump and pipe-line system pressure.Be to guarantee positive displacement oil header proper functioning, require the lubricant pump running to finish after, the nearly oil separator oil pressure of working connection must be laid down fully, oil separator could be to each lubricating point fuel feeding.Therefore, in this structure, pump oil port in the fuel tank and be provided with a unloading valve, after lubricant pump was out of service, opened automatically the relief port, and main line fluid flows back to mailbox automatically, and the nearly oil separator group of working connection place oil pressure is laid down.The unloading valve of using always on the market, at pipeline short and in the temperate zone area use can play better action, but lubricated often use the thickness grease and make lubricant medium, and usually face long apart from pipeline conveying and psychro-environment condition, in this case, the oil separator that is positioned at the main line least significant end will thoroughly can't not worked because of the main line release, and this just makes the application of positive displacement oil header in automobile industry be obstructed.
The model utility content
The purpose of this utility model is in order to solve above-mentioned existing in prior technology problem, and a kind of simple in structure, lubricant pump pressure relief device that processing cost is lower, easy to use is provided.
The purpose of this utility model can reach by taking following technological scheme:
The lubricant pump pressure relief device is characterized in that: comprise valve body and return opening joint, be provided with filler opening in the bottom of valve body, be provided with the opening of internal thread on the top of valve body, the return opening joint is provided with the internal thread of valve body; The return opening joint is provided with axial drainback passage, and described axial drainback passage stretches in the inner chamber of valve body, is provided with elastic structure and ball float in drainback passage, and elastic structure and ball float keep normality to contact, and blocks drainback passage at the normality situation ball sealing of floating downward; The end of drainback passage forms the oil return outlet; Be provided with umbrella valve at the inner chamber of valve body near the filler opening place, be provided with out oil return line at the internal chamber wall of valve body.
The purpose of this utility model can also reach by the following technical programs:
A kind of embodiment of the present utility model is: the joint at valve body and return opening joint can be provided with seal ring, and described seal ring is made by oil resistant rubber.
A kind of embodiment of the present utility model is: described elastic structure can be made of pressure spring.
A kind of embodiment of the present utility model is: flexibly connect the sealing mechanism that forms oil circuit capable of blocking by elastic structure and ball float.
The utlity model has following outstanding beneficial effect:
1, the utility model is arranged in the lubricant pump, owing to be provided with drainback passage, when lubricant pump quits work, can lay down pressure or oil-way system internal pressure in the lubricant pump, therefore, thoroughly release and the problem of oil seepage can not occur has the lubrication system of guarantee normal fuel injection, long-lived beneficial effect.
2, the utlity model has simple in structure, the efficient height, the advantage that performance is good, and use easy to maintenance, the characteristics that Applicable scope is extensive.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein, the 1-valve body, 2-return opening joint, the 3-elastic structure, the 4-filler opening, 5-goes out oil return line, 6-umbellate form valve, 7-drainback passage, 8-oil return outlet, 9-ball float, 10-seal ring.
Embodiment
Specific embodiment 1:
Fig. 1 and Fig. 2 constitute specific embodiment of the utility model 1.
With reference to Fig. 1, present embodiment comprises valve body 1 and return opening joint 2, is provided with filler opening 4 in the bottom of valve body, is provided with the opening of internal thread on the top of valve body 1, and return opening joint 2 is provided with the internal thread of valve body; Return opening joint 2 is provided with axial drainback passage 7, described axial drainback passage 7 stretches in the inner chamber of valve body 1, be provided with elastic structure 3 and ball float 9 in drainback passage 7, elastic structure 3 keeps normality to contact with ball float 9, and ball float 3 blocks drainback passage 7 under the normality situation; The end of drainback passage forms oil return outlet 8; Be provided with umbrella valve 6 at the inner chamber of valve body 1 near filler opening 4 places, be provided with out oil return line 5 at the internal chamber wall of valve body 1.
In the present embodiment, can be provided with seal ring 10 in the joint of valve body 1 and return opening joint 2, described seal ring 10 is made by oil resistant rubber.Described valve body 1 can be externally connected with motor, and described motor is a DC speed-reducing.Described elastic structure 3 can be made of pressure spring.Flexibly connect the sealing mechanism that forms oil circuit capable of blocking by elastic structure 3 and ball float 9.
The working principle of present embodiment:
During practical application, the described pressure relief device of present embodiment is built in the lubricant pump,, oil return outlet 8 is connected the lubricant oil input port of lubricant pumps the fuel-displaced port of filler opening 4 connection lubricant pumps.
When lubricant pump begins fuel feeding, lubricant oil enters from filler opening 4, promote umbellate form spool 6 and block the filler opening of the axial drainback passage 7 of return opening joint 2, the filler opening sealing of drainback passage 7, lubricant oil flows out from going out oil return line 5, promptly under the oil pressure effect of lubricant pump by going out oil return line 5 to the lubricating point fuel feeding.
After lubricant pump quits work, oil pressure from filler opening 4 disappears, the lubricant oil that goes out oil return line 5 refluxes, and umbellate form valve 6 resets under return pressure, and the filler opening of drainback passage 7 is opened, the lubricant oil that refluxes enters from the filler opening of drainback passage 7, by ball float 9 extruding elastic structures 3 (pressure spring), described elastic structure 3 retractions, ball float 9 leaves the oil outlet of drainback passage 7, the lubricant oil that is trapped in the lubricant pump is discharged from oil return outlet 8, finish release.After release was finished, ball float 9 can reset rapidly under the effect of elastic structure 3, and drainback passage is sealed once more, can not allow air enter the lubrication system oil circuit.
Other specific embodiments:
The main feature of other specific embodiments of the utility model is: described valve body is outer can be connected with motor, and described motor is a DC speed-reducing, and the work of pressure relief device can be more rapid smooth under the effect of motor.All the other are with specific embodiment 1.
The above; it only is the specific embodiment of the utility model the best; but protection domain of the present utility model is not limited thereto, and any design is equal to and replaces or change according to the technical solution of the utility model and model utility thereof, all belongs to protection domain of the present utility model.
Claims (4)
1. lubricant pump pressure relief device, it is characterized in that: comprise valve body (1) and return opening joint (2), be provided with filler opening (4) in the bottom of valve body, be provided with the opening of internal thread on the top of valve body (1), return opening joint (2) is provided with the internal thread of valve body; Return opening joint (2) is provided with axial drainback passage (7), described axial drainback passage (7) stretches in the inner chamber of valve body (1), in drainback passage (7), be provided with elastic structure (3) and ball float (9), elastic structure (3) keeps normality to contact with ball float (9), and ball float under the normality situation (3) blocks drainback passage (7); The end of drainback passage forms oil return outlet (8); Locate to be provided with umbrella valve (6) at the inner chamber of valve body (1) near filler opening (4), be provided with out oil return line (5) at the internal chamber wall of valve body (1).
2. lubricant pump pressure relief device according to claim 1 is characterized in that: the joint at valve body (1) and return opening joint (2) is provided with seal ring (10), and described seal ring (10) is made by oil resistant rubber.
3. lubricant pump pressure relief device according to claim 1 is characterized in that: described elastic structure (3) is made of pressure spring.
4. lubricant pump pressure relief device according to claim 1 is characterized in that: flexibly connect the sealing mechanism that forms oil circuit capable of blocking by elastic structure (3) and ball float (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201428136U CN202007980U (en) | 2011-05-06 | 2011-05-06 | Pressure relief device for lubricating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201428136U CN202007980U (en) | 2011-05-06 | 2011-05-06 | Pressure relief device for lubricating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007980U true CN202007980U (en) | 2011-10-12 |
Family
ID=44749638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201428136U Expired - Fee Related CN202007980U (en) | 2011-05-06 | 2011-05-06 | Pressure relief device for lubricating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383031A (en) * | 2020-10-22 | 2022-04-22 | 南京贝奇尔机械有限公司 | Quantitative oil injector for volume pressure relief type centralized lubrication |
-
2011
- 2011-05-06 CN CN2011201428136U patent/CN202007980U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383031A (en) * | 2020-10-22 | 2022-04-22 | 南京贝奇尔机械有限公司 | Quantitative oil injector for volume pressure relief type centralized lubrication |
| CN114383031B (en) * | 2020-10-22 | 2023-02-24 | 南京贝奇尔机械有限公司 | Quantitative oil injector for volume pressure relief type centralized lubrication |
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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: 20111012 Termination date: 20150506 |
|
| EXPY | Termination of patent right or utility model |