CN204611015U - A kind of novel invertor lifting oil pump breather plug structure - Google Patents
A kind of novel invertor lifting oil pump breather plug structure Download PDFInfo
- Publication number
- CN204611015U CN204611015U CN201420866348.4U CN201420866348U CN204611015U CN 204611015 U CN204611015 U CN 204611015U CN 201420866348 U CN201420866348 U CN 201420866348U CN 204611015 U CN204611015 U CN 204611015U
- Authority
- CN
- China
- Prior art keywords
- valve body
- slide core
- hole
- plunger hole
- face
- 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.)
- Active
Links
Landscapes
- Check Valves (AREA)
Abstract
A kind of novel invertor lifting oil pump breather plug structure, neck shoulder rank are provided with between the top and the bottom of valve body, the lower part plunger hole of the inner chamber of valve body, step end face is provided with above plunger hole, the slide core suitable with it is provided with in plunger hole, the inwall at the lower end surface place of plunger hole is provided with sealing, sealing and step end face limit slide core and move up and down in plunger hole, the plunger hole inwall at step end face (13) place is provided with seal ring, be hollow structure in slide core, the inner chamber of slide core is provided with the one-way valve that can outwards open, the valve body at the one-way valved outlet place of slide core is provided with round platform passage, the end face of round platform passage is provided with rubber pad, the middle part of rubber pad is provided with perforation, cover plate is positioned at above rubber pad, neck shoulder rank are provided with through hole.The utility model valve body and slide core adopt Spielpassung, and ensure the moving from cunning and can not come off of slide core, the processing technology difficulty of product reduces greatly, and assembly qualified rate is high, improves the manufacturability of product.
Description
Technical field
The utility model belongs to auto manufacturing's technical field, relates to a kind of auto parts machinery, is breather plug structure, particularly a kind of breather plug structure of heavy card automobile cab hydraulic overturn device oil pump.
Background technique
Hydraulic cab invertor is very important to the performance requirement of breather plug, and relate to product function and realize, can be related to operator cabin lifting, is even related to the life safety of operator.After system cloud gray model a period of time, severe working environment, sand and dust, muddy water, acid rain etc. can cause that breather plug is got rusty, blocking etc., directly have influence on the realization of breather plug function.At present, cab tilting system oil pump breather plug structure mainly contains single-way gas-discharge plug and two-way breather plug two kinds.
Being illustrated in figure 1 single-way gas-discharge plug structure is the breather plug structure that invertor lifting oil pump is traditional.Single-way gas-discharge plug structure, when the gas of system generation in oil pump fuel tank is too much or hydraulic oil is excessive, opens the air relief cock structure of one-way valve Exhaust Gas or fluid.As on invertor oil pump market, traditional air relief cock structure of lifting oil pump for cab is single-way gas-discharge plug structure.Its shortcoming existed cannot overcome operator cabin to rise, the vacuum that fuel tank produces, oil suction difficulty, and steering force increases, and even occurs the phenomenon of fuel tank distortion, cracking.Add valve body in man-hour, spring seat requirement is high, process equipment required precision is improved.Valve gap comes off and air relief cock can be caused to lose function, sand and dust, muddy water, and rainwater etc. can enter fuel tank, cause get rusty, oil deteriorate etc.
Be illustrated in figure 2 two-way breather plug structure.Two-way breather plug structure is the breather plug structure that invertor lifting oil pump is commonly used.Two-way breather plug structure, when the gas of the oil tank system generation of oil pump is too much or hydraulic oil is excessive, opens exhaust check valve and discharge unnecessary gas or fluid; When operator cabin rises, produce vacuum in fuel tank, breather cheek valve is opened under the atmospheric effect in outside, and air supplements the partial vacuum that fuel tank produces, and oil pump hydraulic oil produces enough pressure elevating ram jack-up operator cabins.As on invertor oil pump market, the conventional breather plug structure of lifting oil pump for cab is two-way breather plug structure.Its shortcoming existed is: product structure is complicated, and valve body difficulty of processing is large.Due to the riveted joint to valve gap, and matching gap is difficult to control, and to making product suck, the flow of Exhaust Gas or fluid is also difficult to control.When riveted joint valve gap hard-pressed bale lives valve body, the too much fluid of note in fuel tank, when operator cabin declines, can not anxious time discharge can build-up of pressure greatly, the phenomenons such as fuel tank is out of shape, break.
Model utility content
The utility model object is the deficiency overcoming the existence of above-mentioned breather plug structure, and provide a kind of novel breather plug structure, its structure is attractive in appearance, and applicability is strong, and easy to process, and reliability is high, moderate cost, stable performance, and the life-span is long.
The technological scheme that the technical problem that the utility model solves adopts is: a kind of novel invertor lifting oil pump breather plug structure, comprise valve body 1, valve body 1 is the structure of hollow, the top of valve body 1 is provided with cover plate 8, it is characterized in that the inner chamber of valve body 1 divides two parts communicated up and down, neck shoulder rank 11 are provided with between the upper part of valve body 1 and lower part, the lower part of valve body 1 inner chamber is provided with plunger hole 12, plunger hole 12 is provided with step end face 13 above, the slide core 2 suitable with it is provided with in plunger hole 12, the inwall at the lower end surface place of plunger hole 12 is provided with sealing 14, sealing 14 and step end face 13 limit slide core 2 and move up and down in plunger hole 12, valve body and slide core adopt Spielpassung, plunger hole 12 inwall at step end face 13 place is provided with seal ring 6, be hollow structure in slide core 2, the inner chamber of slide core 2 is provided with the one-way valve that can outwards open, the valve body 1 at the one-way valved outlet place of slide core 2 is provided with round platform passage 15, the end face of round platform passage 15 is provided with rubber pad 7, the middle part of rubber pad 7 is provided with perforation, above-mentioned cover plate 8 is positioned at above rubber pad, neck shoulder rank 11 are provided with through hole 18.
During concrete enforcement, slide core 2 inner chamber of hollow is provided with oil inlet hole 16 and the valve seat orifice 17 of connection, the aperture of valve seat orifice 17 is greater than the aperture of oil inlet hole 16, one-way valve comprises the steel ball 3 be arranged in valve seat orifice 17, small washer 5 and spring 4, small washer 5 is enclosed in valve seat orifice 17 top, steel ball 3 is arranged at the bottom of valve seat orifice 17, and with oil inlet hole 16 fitted seal, be provided with above-mentioned spring 4 between steel ball 3 and small washer 5.
When intake air is required, air can enter fuel tank by through hole 18, round platform passage 15 and plunger hole 12; With the matching gap between valve body 1, outside atmosphere is communicated by through hole 18, valve insertion and the slide core 2 offered in valve body 1 annular groove with oil pump fuel tank, when ensure that operator cabin rises, fuel tank fluid is pumped the partial vacuum of generation, enter filling by outside atmosphere at any time, the active force or fuel tank distortion etc. of operation can not be increased.Decline work is carried out at cab lifting system, when fuel tank fluid too much need be discharged, can first from the gap between slide core 2 and valve body 1, a part is discharged again through the hole that valve body 1 is offered, after pressure continues increase, the end face of slide core 2 is sealed by the seal ring 6 at step end face 13 place, steel ball 3 jack-up, open the one-way valve of slide core 2, oil is excreted out to through hole 18 by round platform passage 15, there will not be pressure during draining to increase phenomenon suddenly like this, add transient process and draining process stationarity is improved, greatly reduce the probability of fuel tank cracking.This configuration reduces the particular/special requirement to operator's technical ability, install simple and convenient.The utility model is conducive to the raising of life of product simultaneously, and functional reliability is high, easy to operate, without the need to special tool.
During concrete enforcement, the valve body 1 at neck shoulder rank place is provided with seal groove, seal groove is provided with O shape circle 10.The axial hole 18 communicated with valve insertion is offered in valve body 1 ring groove, and one O shape circle 10 is installed in annular groove, drench with rain like this and douching wheels time, water can not be charged inner chamber, even if having the water of minute quantity to enter also to discharge from axial hole 18 again due to the stop of rubber pad 7, this avoid water and enter fuel tank contaminated liquid force feed and go bad.
During concrete enforcement, above-mentioned through hole 18 is provided with three, is evenly distributed on neck shoulder rank 11.
During concrete enforcement, the aperture of above-mentioned through hole 18 is between 1.5mm-3mm.
The beneficial effects of the utility model are: the utility model improves prior art, valve body and slide core adopt Spielpassung, and ensure the moving from cunning and can not come off of slide core, the processing technology difficulty of product reduces greatly, assembly qualified rate is high, improves the manufacturability of product.
Embodiment
As shown in Figure 3 to Figure 4, a kind of novel invertor lifting oil pump breather plug structure, comprise valve body 1, valve body 1 is the structure of hollow, valve body 1 is provided with O-ring seals 10, the top of valve body 1 is provided with cover plate 8, the inner chamber of valve body 1 divides two parts communicated up and down, neck shoulder rank 11 are provided with between the upper part of valve body 1 and lower part, the lower part of valve body 1 inner chamber is provided with plunger hole 12, plunger hole 12 is provided with step end face 13 above, the slide core 2 suitable with it is provided with in plunger hole 12, the inwall at the lower end surface place of plunger hole 12 is provided with sealing 14, sealing 14 and step end face 13 limit slide core 2 and move up and down in plunger hole 12, plunger hole 12 inwall at step end face 13 place is provided with seal ring 6, seal ring 6 is O shape rubber ring, be hollow structure in slide core 2, the inner chamber of slide core 2 is provided with the one-way valve that can outwards open, the valve body 1 at the one-way valved outlet place of slide core 2 is provided with round platform passage 15, the end face of round platform passage 15 is provided with rubber pad 7, the middle part of rubber pad 7 is provided with perforation, above-mentioned cover plate 8 is positioned at above rubber pad, neck shoulder rank 11 are provided with through hole 18, through hole 18 is provided with three, be evenly distributed on neck shoulder rank 11, the aperture of through hole 18 is 2mm, the valve body 1 at neck shoulder rank place is provided with seal groove, seal groove is provided with O shape circle 10.Slide core 2 inner chamber of hollow is provided with oil inlet hole 16 and the valve seat orifice 17 of connection, the aperture of valve seat orifice 17 is greater than the aperture of oil inlet hole 16, one-way valve comprises the steel ball 3 be arranged in valve seat orifice 17, small washer 5 and spring 4, small washer 5 is enclosed in valve seat orifice 17 top, steel ball 3 is arranged on the inner chamber taper hole face of the bottom of valve seat orifice 17, and with oil inlet hole 16 fitted seal, be provided with above-mentioned spring 4 between steel ball 3 and small washer 5.
The utility model comprises valve body 1, slide core 2, steel ball 3, spring 4, small washer 5, seal ring 6, rubber pad 7, valve gap 8, O shape circle 9 and O-ring seals 10 and assemblies.Wherein slide core 2 steel ball 3 forms annular sealing strip on inner chamber taper hole face, then loads steel ball 3, spring 4 successively, and then riveted tightly by small washer 5 forms one-way valve assembly in the groove of slide core 2 end face.Riveting method is adopted to make assembling simpler, convenient.Product structure also simplifies further simultaneously, and reduce the processing technology difficulty of product, assembly qualified rate is high, improves manufacturability.Slide core 2 assembly that riveting is good and seal ring 6 load valve body 1 successively.Valve body 1 and slide core 2 adopt Spielpassung, and riveting seals.Ensure the moving from cunning and can not come off of slide core 2.Then rubber pad 7 and valve valve gap 8 are loaded the inner chamber of valve body 1 opposite side.Wherein valve body 1 and valve gap 8 adopt seizing type male-female engagement, not only ensure that the adhesive strength after cooperation but also beautiful shape.Reduce the skill set requirements to operator simultaneously, improve Product Process.O shape is finally installed ensphere in the circular groove of valve body 1.Wherein major part valve body 1 adopts half-hard state H62 high-quality copper rod to be processed into, and ensures the good applicability of riveted joint, does not magnetize and have enough intensity and wear resistance, and corrosion resistance is strong, and have the intensity and toughness that meet the demands, comprehensive mechanical performance is good.Spring 4 adopts high-quality Stainless Steel Wire 1Cr18Ni9 to make.Ensure the corrosion resistance of product, there is excellent elasticity, fatigue resistance, durability simultaneously.Seal ring 6, O-ring seals 9, O shape circle 10 and rubber pad 7 adopt the manufacture of high-quality nitrile butadiene rubber, the features such as have oil resistance good, wear resistance is higher, temperature resistant range-35 DEG C ~ 80 DEG C.
When intake air is required, air can enter fuel tank by through hole 18, round platform passage 15 and plunger hole 12; With the matching gap between valve body 1, outside atmosphere is communicated by through hole 18, valve insertion and the slide core 2 offered in valve body 1 annular groove with oil pump fuel tank, when ensure that operator cabin rises, fuel tank fluid is pumped the partial vacuum of generation, enter filling by outside atmosphere at any time, the active force or fuel tank distortion etc. of operation can not be increased.Decline work is carried out at cab lifting system, when fuel tank fluid too much need be discharged, can first from the gap between slide core 2 and valve body 1, a part is discharged again through the hole that valve body 1 is offered, after pressure continues increase, the end face of slide core 2 is sealed by the seal ring 6 at step end face 13 place, steel ball 3 jack-up, open the one-way valve of slide core 2, oil is excreted out to through hole 18 by round platform passage 15, there will not be pressure during draining to increase phenomenon suddenly like this, add transient process and draining process stationarity is improved, greatly reduce the probability of fuel tank cracking.This configuration reduces the particular/special requirement to operator's technical ability, install simple and convenient.The utility model is conducive to the raising of life of product simultaneously, and functional reliability is high, easy to operate, without the need to special tool.The valve body 1 at neck shoulder rank place is provided with seal groove, and seal groove is provided with O shape circle 10.The axial hole 18 communicated with valve insertion is offered in valve body 1 ring groove, and one O shape circle 10 is installed in annular groove, drench with rain like this and douching wheels time, water can not be charged inner chamber, even if having the water of minute quantity to enter also to discharge from axial hole 18 again due to the stop of rubber pad 7, this avoid water and enter fuel tank contaminated liquid force feed and go bad.
Finally, it is also to be noted that what enumerate above is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive from disclosed content of the present utility model or associate, all should think protection domain of the present utility model.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, model utility is further illustrated.Fig. 1 is the structural representation of prior art single-way gas-discharge plug structure; Fig. 2 is the structural representation of the two-way breather plug structure of prior art; Fig. 3 is the structural representation of the utility model embodiment; Fig. 4 is the structure for amplifying schematic diagram at the A place of the utility model embodiment Fig. 3.
In figure: 1, valve body 2, slide core 3, steel ball 4, spring 5, small washer 6, seal ring 7, rubber pad 8, valve gap 9, O-ring seals 10, O shape circle 11, neck shoulder rank post 12, plunger hole 13, end face 14, sealing 15, round platform passage 16, oil inlet hole 17, valve seat orifice 18 through hole.
Claims (5)
1. a novel invertor lifting oil pump breather plug structure, comprise valve body (1), the structure that valve body (1) is hollow, the top of valve body (1) is provided with cover plate (8), it is characterized in that the inner chamber of valve body (1) divides two parts communicated up and down, neck shoulder rank (11) are provided with between the upper part of valve body (1) and lower part, the lower part of valve body (1) inner chamber is provided with plunger hole (12), plunger hole (12) is provided with step end face (13) above, the slide core (2) suitable with it is provided with in plunger hole (12), the inwall at the lower end surface place of plunger hole (12) is provided with sealing (14), sealing (14) and step end face (13) limit slide core (2) and move up and down in plunger hole (12), plunger hole (12) inwall at step end face (13) place is provided with seal ring (6), be hollow structure in slide core (2), the inner chamber of slide core (2) is provided with the one-way valve that can outwards open, the valve body (1) at the one-way valved outlet place of slide core (2) is provided with round platform passage (15), the end face of round platform passage (15) is provided with rubber pad (7), the middle part of rubber pad (7) is provided with perforation, above-mentioned cover plate (8) is positioned at above rubber pad, neck shoulder rank (11) are provided with through hole (18).
2. a kind of novel invertor lifting oil pump breather plug structure according to claim 1, it is characterized in that slide core (2) inner chamber of hollow is provided with the oil inlet hole (16) of connection and valve seat orifice (17), the aperture of valve seat orifice (17) is greater than the aperture of oil inlet hole (16), one-way valve comprises the steel ball (3) be arranged in valve seat orifice (17), small washer (5) and spring (4), small washer (5) is enclosed in valve seat orifice (17) top, steel ball (3) is arranged at the bottom of valve seat orifice (17), and with oil inlet hole (16) fitted seal, above-mentioned spring (4) is provided with between steel ball (3) and small washer (5).
3. a kind of novel invertor lifting oil pump breather plug structure according to claim 1 and 2, is characterized in that being provided with seal groove on the valve body (1) at neck shoulder rank place, and seal groove is provided with O shape circle (10).
4. a kind of novel invertor lifting oil pump breather plug structure according to claim 1 and 2, is characterized in that above-mentioned through hole (18) is provided with three, is evenly distributed on neck shoulder rank (11).
5. a kind of novel invertor lifting oil pump breather plug structure according to claim 1 and 2, is characterized in that the aperture of above-mentioned through hole (18) is between 1.5mm-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420866348.4U CN204611015U (en) | 2014-12-30 | 2014-12-30 | A kind of novel invertor lifting oil pump breather plug structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420866348.4U CN204611015U (en) | 2014-12-30 | 2014-12-30 | A kind of novel invertor lifting oil pump breather plug structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204611015U true CN204611015U (en) | 2015-09-02 |
Family
ID=53963582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420866348.4U Active CN204611015U (en) | 2014-12-30 | 2014-12-30 | A kind of novel invertor lifting oil pump breather plug structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204611015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332345A (en) * | 2019-07-25 | 2019-10-15 | 无锡明诚汽车部件有限公司 | Motor water-proof valve assembly mechanism |
-
2014
- 2014-12-30 CN CN201420866348.4U patent/CN204611015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332345A (en) * | 2019-07-25 | 2019-10-15 | 无锡明诚汽车部件有限公司 | Motor water-proof valve assembly mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204611015U (en) | A kind of novel invertor lifting oil pump breather plug structure | |
| CN203817743U (en) | Hydraulic bolt tensioner | |
| CN103847778A (en) | Height adjustable hydraulic baby carriage | |
| CN204553944U (en) | A kind of one-way valve of anti-backflow | |
| CN210396942U (en) | Novel high-pressure oil pump | |
| CN203497996U (en) | Pneumatic hydraulic jack | |
| CN203497995U (en) | Transition plate used for pneumatic hydraulic jack and pneumatic hydraulic jack | |
| CN210949963U (en) | High seal structure of choke valve | |
| CN208311004U (en) | A kind of automobile vacuum pump check valve | |
| CN208605315U (en) | A kind of superhigh pressure three-cylinder reciprocating pump | |
| CN202789012U (en) | Engine with integrated type breather | |
| CN101021226A (en) | Fast lifting oil pump | |
| CN2332704Y (en) | Automotive double-cylinder hydraulic jack | |
| CN203020354U (en) | Liftable hydraulic baby carriage | |
| CN205956248U (en) | Separation and reunion, oily structure assembly is crossed to ring channel for brake master cylinder | |
| CN102862613B (en) | The gap-free sealed lifting pump of a kind of driver's cab turnover | |
| CN207526803U (en) | A kind of check valve for elevating ram | |
| CN106194874A (en) | High-pressure liquid-filling valve and work process thereof | |
| CN214330886U (en) | Pipe joint of hydraulic overturning lifting oil pump of commercial vehicle cab | |
| CN204453347U (en) | Vapour-pressure type pumping device | |
| CN201013567Y (en) | Electric atomizer diaphram pump | |
| CN220354554U (en) | Uniflow valve for large-diameter manifold | |
| CN203403853U (en) | Cylindrical blowout preventer for hydraulic control sucker rod | |
| CN2455997Y (en) | Dosing valve for lubricating system | |
| CN202879623U (en) | Driving cab gap-free sealing lifting pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |