CN203926947U - Floated vacuum automobile one-way valve - Google Patents
Floated vacuum automobile one-way valve Download PDFInfo
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- CN203926947U CN203926947U CN201420356536.2U CN201420356536U CN203926947U CN 203926947 U CN203926947 U CN 203926947U CN 201420356536 U CN201420356536 U CN 201420356536U CN 203926947 U CN203926947 U CN 203926947U
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- valve
- sealing plate
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- directional post
- vent
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Abstract
The utility model relates to a kind of floated vacuum automobile one-way valve, include valve body and valve gap, valve gap is arranged on valve body, described valve body is provided with bleed-off passage, outlet passageway and valve pocket, described valve pocket connects bleed-off passage and gas-entered passageway, valve pocket and gas-entered passageway joint are provided with valve seat, valve seat is provided with the vent of UNICOM's valve pocket and gas-entered passageway, on described valve seat, be provided with spool, spool is for can cover on described vent, the sealing plate of platy structure, described valve seat is provided with to the directional post of valve pocket projection towards valve pocket one side, on described sealing plate, be provided with positioning hole, sealing plate is set on directional post and can floats through positioning hole, in described valve pocket, be provided with the spacing limited post on directional post of sealing plate, limited post coordinates with sealing plate is spacing.The utility model compared with prior art, have advantages of that cracking pressure is little, highly sensitive, open degree is large, without whistle, simple in structure and good reliability.
Description
Technical field
The utility model relates to auto parts machinery technical field, is specifically related to vacuum automobile one-way valve, particularly a kind of floated vacuum automobile one-way valve.
Background technique
Vacuum check valve belongs to vacuum booster vitals; Existing vacuum check valve, through the difference of its open-shut device, mainly contains two kinds of structural types; The first is: open-shut device is sealing plate, and sealing plate is pressed on valve seat and seals through spring, and due to the effect of spring, it exists the required pressure of unlatching higher.The second is: its open-shut device is diaphragm, and diaphragm is directly pressed on valve seat through valve gap middle part, and diaphragm edge has deformable elastic edge, and it relies on the distortion of diaphragm to reach the keying of valve; Its hoisting capacity is compared little compared with the first sealing plate, but it is had relatively high expectations for diaphragm material, exist cost larger, and diaphragm affected by the external environments such as temperature larger, the defect that existence and stability is poor, and its open degree is less, and aeration resistance is large, during the passage of gas by the formation between diaphragm edge and valve seat, easily produce whistle.Simultaneously above two kinds of vacuum check valves, all adopt end face seal between its open-shut device and valve seat, have the poor defect of sealing.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of floated vacuum automobile one-way valve, has advantages of that cracking pressure is little, highly sensitive, open degree large, without whistle, simple in structure and good reliability.
For achieving the above object, the utility model provides following technological scheme: a kind of floated vacuum automobile one-way valve, include valve body and valve gap, valve gap is arranged on valve body, described valve body is provided with bleed-off passage, outlet passageway and valve pocket, described valve pocket connects bleed-off passage and gas-entered passageway, valve pocket and gas-entered passageway joint are provided with valve seat, valve seat is provided with the vent of UNICOM's valve pocket and gas-entered passageway, on described valve seat, be provided with spool, it is characterized in that: described spool is for can cover on described vent, the sealing plate of platy structure, described valve seat is provided with to the directional post of valve pocket projection towards valve pocket one side, on described sealing plate, be provided with positioning hole, sealing plate is set on directional post and can floats through positioning hole, in described valve pocket, be provided with the spacing limited post on directional post of sealing plate, limited post coordinates with sealing plate is spacing.
By adopting technique scheme, spool is floating type design, while vacuumizing, under the effect of pressure difference, sealing plate is picked up, thereby open pore, directional post plays good leading role when sealing plate is floated, when not working, degree of vacuum in vacuum booster is better, and by sealing plate back suction, sealing plate is pressed on valve seat, cover vent, form good sealing; Its spool adopts floating type design, has simple in structurely, opens power-assisted little, and cracking pressure is little, opens highly sensitively, and open degree is large, and aeration resistance is little, without whistle, produces, and the material requirements of spool is low, with low cost.
The utility model is further set to: on described sealing plate positioning hole be positioned at sealing plate middle position, corresponding described directional post is positioned at the central position of valve seat, vent arranges around directional post side, described sealing plate is with directional post Spielpassung, the end face that valve seat and sealing plate coordinate is provided with the first sealing bulge loop that is positioned at vent inner side, and the second sealing bulge loop that is positioned at vent outside, the first sealing bulge loop and the second sealing bulge loop are around directional post setting, and the first sealing bulge loop is between vent and directional post.
By adopting technique scheme, sealing plate is simple in structure with directional post, and directional post and sealing plate adopt Spielpassung, directional post and sealing plate surface friction drag little, make opening and closing more sensitive, simultaneously in vent, (wherein the inner side of vent is that vent is towards a side of directional post in outside, relative opposite side is outside) the first seal ring and the second seal ring be set, guarantee the sealing reliability between sealing plate and valve seat, and employing forms bulge loop on valve seat and sealing plate is sealed and matched, can make sealing plate evenly contact with bulge loop, guarantee reliable sealing, thereby improve the reliability of whole vacuum check valve.
The utility model is further set to: described directional post is tapered setting, and directional post and valve seat connecting end diameter are greater than the other end.
By adopting technique scheme, directional post is cone structure, and upper end is little, and lower end is large, after sealing plate is opened, it is large that gap between sealing plate and directional post becomes, at sealing plate, reset while falling after rise, directional post to sealing plate frictional force resistance little, thereby improve the sensitivity resetting, and cone structure, lower end diameter is large, guarantees the reliable reset guide of sealing plate.
The utility model is further set to: described limited post is that valve gap extends to form to sealing plate one end towards valve pocket one end, and limited post is provided with the shrinkage pool stretching into for directional post, and limited post is formed with annular stop end face with the spacing one end that coordinates of sealing plate.
By adopting technique scheme, on valve gap, be processed to form limited post, be convenient to being processed to form of limited post, and limited post is provided with shrinkage pool, directional post embeds in shrinkage pool, makes cooperating structure more compact, and the setting of shrinkage pool, there is saving material, the advantage reducing costs, on limited post, form annular stop end face sealing plate is carried out spacing, sealing plate spacing more reliable, while avoiding sealing plate to open, there is inclination beat problem.
The utility model is further set to: described limited post is for being connected the cone structure that one end diameter is greater than the other end with valve gap.
By adopting technique scheme, guarantee the soundness that limited post is connected with valve gap, take into account saving material, the advantage reducing costs simultaneously.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the floated vacuum automobile one-way valve structures of the utility model specific embodiment schematic diagram;
Fig. 2 is Figure 1A part partial enlarged view.
Embodiment
As depicted in figs. 1 and 2, the disclosed a kind of floated vacuum automobile one-way valve of the utility model, includes valve body 1 and valve gap 2, and valve gap 2 welded and installed are on valve body 1; Described valve body 1 is provided with bleed-off passage 11, outlet passageway 12 and valve pocket 13, described valve pocket 13 connects bleed-off passage 11 and gas-entered passageway 12, valve pocket 13 is provided with valve seat 3 with gas-entered passageway 12 joints, valve seat 3 is provided with the vent 31 of UNICOM's valve pocket 13 and gas-entered passageway 12, on described valve seat 3, is provided with spool 4; Described spool 4 is for can cover sealing plate 4 on described vent 31, platy structure, described valve seat 3 is provided with to the directional post 32 of valve pocket 13 projections towards valve pocket 13 1 sides, described sealing plate 4 is provided with positioning hole 41, sealing plate 4 is set on directional post 32 and can floats through positioning hole 41, in described valve pocket 13, be provided with the spacing limited post 21 on directional post 32 of sealing plate 4, limited post 21 coordinates with sealing plate 4 is spacing.
Further, on described sealing plate 4, positioning hole 41 is positioned at the middle position of sealing plate 4, corresponding described directional post 32 is positioned at the central position of valve seat 3, vent 31 is around directional post 32 side settings, for improving ventilation efficiency, in this specific embodiment, around directional post 32, be circumferentially provided with a plurality of vents 31; Described sealing plate 4 and directional post 32 Spielpassung, the end face that valve seat 3 coordinates with sealing plate 4 is provided with the first sealing bulge loop 33 that is positioned at vent 31 inner sides, and the second sealing bulge loop 34(that is positioned at vent 31 outsides wherein the inner side of vent 31 be that vent 31 is towards a side of directional post 32, relative opposite side is outside), the first sealing bulge loop 33 and the second sealing bulge loop 34 arrange around directional post 32, and the first sealing bulge loop 33 is between vent 31 and directional post 32.Certainly as the feasible technological scheme of the utility model, positioning hole and directional post can arrange off center position, directional post and positioning hole also can be for a plurality of, but there is complex structure in it, processing inconvenience, and sealing plate is large with the hermetic resistance of directional post, open and close the defect of sensitivity variation, also can adopt sealing plate with directional post interference fit simultaneously, pilot hole arranged outside seals bulge loop together, but sealing plate adopts after interference fit with directional post, exist unlatching resistance large, open the defect of poor sensitivity, therefore model utility preferentially adopts the structural design of this specific embodiment.
For further improving the sensitivity that sealing plate resets, described directional post 32 is tapered setting, and directional post 32 is greater than the other end with valve seat 3 connecting end diameters.After sealing plate 4 is opened, it is large that the gap between sealing plate 4 and directional post 32 becomes like this, when sealing plate 4 resets falling, the frictional force resistance of 32 pairs of sealing plates 4 of directional post is little, thereby improves the sensitivity resetting, and cone structure, lower end diameter is large, guarantees the reliable reset guide of sealing plate 4.
In this specific embodiment, described limited post 21 extends to form to sealing plate 4 one end towards valve pocket 13 one end for valve gap 2, and limited post 21 is provided with the shrinkage pool 211 stretching into for directional post 32, and limited post 21 is formed with annular stop end face with the spacing one end that coordinates of sealing plate 4.On valve gap 2, be processed to form limited post 21, be convenient to being processed to form of limited post 21, and limited post 21 is provided with shrinkage pool 211, directional post 32 embeds in shrinkage pools 211, make cooperating structure more compact, and the setting of shrinkage pool 211, there is saving material, the advantage reducing costs, on limited post 21, forming annular stop end face carries out spacing to sealing plate 4,, while avoiding sealing plate 4 to open, there is inclination beat problem in sealing plate 4 spacing more reliable.Certainly as the feasible technological scheme of the utility model, limited post also can adopt on valve body and be processed to form, but there is processing inconvenience in it, simultaneously limited post also can adopt and seal edges of boards portion and put spacing cooperation, but its exist to sealing plate spacing unreliable, there is inclination beat problem while opening in sealing plate, therefore the utility model preferentially adopts the structural design of this specific embodiment.
Further, described limited post 21 is for to be connected with valve gap 2 cone structure that one end diameter is greater than the other end.Both can guarantee the soundness that limited post 21 is connected with valve gap 2, take into account saving material simultaneously, the advantage reducing costs.
Vacuum automobile one-way valve working principle of the present utility model is: while vacuumizing, under the effect of pressure difference, sealing plate 4 is picked up, thereby open pore, 32 pairs of sealing plates of directional post 4 play good leading role while floating, and sealing plate 4 is spacing through limited post 32; When not working, the degree of vacuum in vacuum booster is better, and by sealing plate 4 back suctions, sealing plate 4 is pressed on the first sealing bulge loop 33 and second on valve seat 3 and seals on bulge loop 34, covers vent 31, forms good sealing.Its spool adopts floating type design, has simple in structurely, opens power-assisted little, and cracking pressure is little, open highly sensitive, and the advantage such as open degree is large, and aeration resistance is little, produces without whistle, and the material requirements of spool is low, with low cost.
Claims (5)
1. a floated vacuum automobile one-way valve, include valve body and valve gap, valve gap is arranged on valve body, described valve body is provided with bleed-off passage, outlet passageway and valve pocket, described valve pocket connects bleed-off passage and gas-entered passageway, valve pocket and gas-entered passageway joint are provided with valve seat, valve seat is provided with the vent of UNICOM's valve pocket and gas-entered passageway, on described valve seat, be provided with spool, it is characterized in that: described spool is for can cover on described vent, the sealing plate of platy structure, described valve seat is provided with to the directional post of valve pocket projection towards valve pocket one side, on described sealing plate, be provided with positioning hole, sealing plate is set on directional post and can floats through positioning hole, in described valve pocket, be provided with the spacing limited post on directional post of sealing plate, limited post coordinates with sealing plate is spacing.
2. floated vacuum automobile one-way valve according to claim 1, it is characterized in that: on described sealing plate positioning hole be positioned at sealing plate middle position, corresponding described directional post is positioned at the central position of valve seat, vent arranges around directional post side, described sealing plate is with directional post Spielpassung, the end face that valve seat and sealing plate coordinate is provided with the first sealing bulge loop that is positioned at vent inner side, and the second sealing bulge loop that is positioned at vent outside, the first sealing bulge loop and the second sealing bulge loop are around directional post setting, the first sealing bulge loop is between vent and directional post.
3. floated vacuum automobile one-way valve according to claim 2, is characterized in that: described directional post is tapered setting, and directional post and valve seat connecting end diameter are greater than the other end.
4. according to floated vacuum automobile one-way valve described in claim 2 or 3, it is characterized in that: described limited post is that valve gap extends to form to sealing plate one end towards valve pocket one end, and limited post is provided with the shrinkage pool stretching into for directional post, and limited post is formed with annular stop end face with the spacing one end that coordinates of sealing plate.
5. floated vacuum automobile one-way valve according to claim 4, is characterized in that: described limited post is for being connected the cone structure that one end diameter is greater than the other end with valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356536.2U CN203926947U (en) | 2014-06-30 | 2014-06-30 | Floated vacuum automobile one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356536.2U CN203926947U (en) | 2014-06-30 | 2014-06-30 | Floated vacuum automobile one-way valve |
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| Publication Number | Publication Date |
|---|---|
| CN203926947U true CN203926947U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420356536.2U Active CN203926947U (en) | 2014-06-30 | 2014-06-30 | Floated vacuum automobile one-way valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869511A (en) * | 2019-03-25 | 2019-06-11 | 浙江德宏汽车电子电器股份有限公司 | A kind of vacuum pump exhaust tube structure |
-
2014
- 2014-06-30 CN CN201420356536.2U patent/CN203926947U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869511A (en) * | 2019-03-25 | 2019-06-11 | 浙江德宏汽车电子电器股份有限公司 | A kind of vacuum pump exhaust tube structure |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 Zhejiang city of Wenzhou province Dongtou County Nantang industrial zone by three Patentee after: Zhejiang Weiwang Precision Industry Co. Ltd. Address before: 325000 Zhejiang city of Wenzhou province Dongtou County Nantang industrial zone by three Patentee before: WENZHOU WEIWANG PLASTIC ELECTRIC CO., LTD. |