CN203499957U - Unloading air compressor - Google Patents
Unloading air compressor Download PDFInfo
- Publication number
- CN203499957U CN203499957U CN201320649226.5U CN201320649226U CN203499957U CN 203499957 U CN203499957 U CN 203499957U CN 201320649226 U CN201320649226 U CN 201320649226U CN 203499957 U CN203499957 U CN 203499957U
- Authority
- CN
- China
- Prior art keywords
- valve core
- valve element
- unloading
- air compressor
- lower valve
- 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 - Lifetime
Links
- 239000000428 dust Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model belongs to the technical field of air compressors, and particularly relates to an unloading air compressor. The unloading air compressor is characterized in that an upper valve element and a lower valve element are sequentially arranged in a cylinder cover inner hole, a stop ring is arranged in the cylinder cover inner hole and located above the upper valve element to fix the upper valve element, and a dustproof cover is arranged on the outer side of the cylinder cover inner hole; sealing rings are sequentially arranged on the large outer diameter part and the small outer diameter part of the lower valve element, and a reset spring is arranged on the small outer diameter part of the upper valve element in a sleeved mode; an unloading hole is formed in a valve plate, corresponds to the lower end face of the lower valve element and is communicated with a cylinder body inner cavity; an unloading valve air inlet formed in the left side of a cylinder cover is communicated with the bottom of the large end face of the lower valve element; an air return hole communicated with an air inlet cavity of the cylinder cover is formed in the cylinder cover inner hole between the lower valve element and the upper valve element. The unloading air compressor has the advantages of being reasonable in structure, low in processing cost, safe, reliable and capable of solving the non-unloading and non-inflation faults of an air compressor.
Description
Technical field
The utility model belongs to air compressor technical field, is specifically related to a kind of off-load air compressor.
Background technique
At present, the unloading valve structure that air compressor generally uses is by back-up ring, upper valve core, lower valve core, unloading spring, the parts such as seal ring form, in upper valve core with the axis of guide, in lower valve core, have guide through hole, the axis of guide inserts in guide through hole and seals by the seal ring on the axis of guide, owing to having assembly error and machining error, the coaxality of guide through hole and the axis of guide is difficult for guaranteeing, in addition seal ring is prone to for a long time aging and lost efficacy under high-temperature gas effect, during lower valve core upstream or downstream, be prone to catching phenomenon, finally cause not off-load of air compressor or do not inflate.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, and processing cost is low, can solve not off-load of air compressor and not inflate fault, safe and reliable off-load air compressor.
The technical solution of the utility model is: a kind of off-load air compressor, by crankcase components, valve plate and cylinder head, formed, it is characterized in that: in cylinder head endoporus, be provided with successively upper valve core and lower valve core, the inner hole of cylinder cover of upper valve core upper end is established back-up ring and is fixed, dust cover is established in inner hole of cylinder cover outside; On the large and small external diameter of lower valve core, be provided with successively seal ring, on the little external diameter of upper valve core, be set with return spring; The valve plate corresponding with position, lower valve core lower end surface is provided with unloading hole and cylinder block intracavity inter-connection; The unloading valve suction port that establish in cylinder head left side is connected with lower valve core large end face bottom; Cylinder head endoporus place between lower valve core and upper valve core is provided with return-air hole and is connected with the air-inlet cavity of cylinder head.
Owing to adopting technique scheme, upper valve core and lower valve core are all arranged in cylinder head endoporus, between the two, need not coordinate, reduced the difficulty of processing of upper and lower spool, fundamentally solved the clamping stagnation problem of lower valve core, the not off-load of air compressor causing because of lower valve core clamping stagnation and the generation of not inflating fault have been avoided, improved the safety reliability of air compressor, thereby have rational in infrastructure, processing cost is low, can solve not off-load of air compressor and not inflate fault, safe and reliable advantage.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in further details.
Accompanying drawing is structural representation of the present utility model.
Embodiment
With reference to accompanying drawing, an off-load air compressor, is comprised of crankcase components, valve plate 1 and cylinder head 2, is provided with successively upper valve core 6 and lower valve core 10 in cylinder head 2 endoporus, the inner hole of cylinder cover of upper valve core 6 upper ends is established back-up ring 5 and is fixed, and dust cover 4 is established in cylinder cap 2 endoporus outsides; On the large and small external diameter of lower valve core 10, be provided with successively seal ring 9 and 11, on the little external diameter of upper valve core 6, be set with return spring 7; The valve plate 1 corresponding with lower valve core 10 positions, lower end surface is provided with unloading hole 13 and is connected with cylinder block inner chamber 14; The unloading valve suction port 3 that establish in cylinder head 2 left sides is connected with lower valve core 10 large end face bottoms; Cylinder head 2 endoporus places between lower valve core 10 and upper valve core 6 are provided with return-air hole 8 and are connected with the air-inlet cavity 12 of cylinder head.During off-load, gas enters from the unloading valve suction port of cylinder head, when the pressure of gas is greater than after the elastic force of return spring and the surface friction drag of two seal rings, lower valve core is by jack-up, pressurized gas between lower valve core and upper valve core enters in air-inlet cavity by return-air hole, air-inlet cavity communicates with cylinder block inner chamber by unloading hole, simultaneously, air compressor can be again to the gas receiver inflation of motor, and the brake gas that enters cylinder block inner chamber is got back in the air inlet pipeline of motor by unloading hole, air-inlet cavity again; When off-load is closed, the gas that enters unloading valve suction port is cut off, and under the effect of return spring elastic force, lower valve core is got back to original position, again unloading hole is sealed, and air compressor continues again the gas receiver inflation to motor.
Claims (1)
1. an off-load air compressor, by crankcase components, valve plate (1) and cylinder head (2), formed, it is characterized in that: in cylinder head (2) endoporus, be provided with successively upper valve core (6) and lower valve core (10), the inner hole of cylinder cover of upper valve core (6) upper end is established back-up ring (5) and is fixed, and dust cover (4) is established in cylinder cap (2) endoporus outside; On the large and small external diameter of lower valve core (10), be provided with successively seal ring (9) and (11), on the little external diameter of upper valve core (6), be set with return spring (7); The valve plate (1) corresponding with lower valve core (10) position, lower end surface is provided with unloading hole (13) and is connected with cylinder block inner chamber (14); The unloading valve suction port (3) that establish in cylinder head (2) left side is connected with lower valve core (10) large end face bottom; Cylinder head (2) endoporus place between lower valve core (10) and upper valve core (6) is provided with return-air hole (8) and is connected with the air-inlet cavity (12) of cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649226.5U CN203499957U (en) | 2013-10-16 | 2013-10-16 | Unloading air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649226.5U CN203499957U (en) | 2013-10-16 | 2013-10-16 | Unloading air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203499957U true CN203499957U (en) | 2014-03-26 |
Family
ID=50330942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320649226.5U Expired - Lifetime CN203499957U (en) | 2013-10-16 | 2013-10-16 | Unloading air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203499957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781937A (en) * | 2016-05-13 | 2016-07-20 | 威伯科汽车控制系统（中国）有限公司 | Internal unloading structure applied to automobile air compressors |
-
2013
- 2013-10-16 CN CN201320649226.5U patent/CN203499957U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781937A (en) * | 2016-05-13 | 2016-07-20 | 威伯科汽车控制系统（中国）有限公司 | Internal unloading structure applied to automobile air compressors |
| CN105781937B (en) * | 2016-05-13 | 2018-07-03 | 威伯科汽车控制系统（中国）有限公司 | The interior unloading-structure of automobile air compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103453176A (en) | Pneumatic-control slide-valve-type three-position four-way control valve | |
| CN203499957U (en) | Unloading air compressor | |
| CN203264104U (en) | Valve core bottle valve of air fire extinguisher | |
| CN203655980U (en) | Spring brake air chamber inner breathing device | |
| CN103912697A (en) | Air suction valve of subway air source system | |
| CN203272083U (en) | Three-cavity electric diaphragm pump | |
| CN202972028U (en) | Combined control valve of oxygenerator | |
| CN203286053U (en) | Straight-through type quick exhaust valve | |
| CN205744378U (en) | The piston component of diaphragm type electric vacuum pump for automobile | |
| CN204213429U (en) | A kind of hard sealed relief valve | |
| CN205078532U (en) | Two accuse hydraulic system of single oil circuit | |
| CN204529649U (en) | Wood-based plate deep processing vacuum integrated system | |
| CN203880154U (en) | One-way air gun valve | |
| CN103775693B (en) | A kind of valve core structure of Center Tyre Inflation/Deflation System tire valve | |
| CN203797053U (en) | Air suction valve assembly for subway air source system | |
| CN203892420U (en) | Internal breathing type spring cylinder | |
| CN203078231U (en) | Car inner tube | |
| CN203638407U (en) | Cushion packaging inflatable bag | |
| CN202657409U (en) | Unidirectional mechanical exhaust valve special for free vacuum package | |
| CN104455502A (en) | Pneumatic type two-position two-way stop valve | |
| CN203228594U (en) | Combined type anti-burst car inner tube | |
| CN104329319A (en) | Hydraulic cylinder with dust cover | |
| CN203335922U (en) | High-sealing ball valve | |
| CN204828812U (en) | Guide's formula bottle head valve | |
| CN202428995U (en) | Multi-cavity tire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |