CN207485639U - Oilless air compressor air valve structure - Google Patents
Oilless air compressor air valve structure Download PDFInfo
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- CN207485639U CN207485639U CN201721576447.9U CN201721576447U CN207485639U CN 207485639 U CN207485639 U CN 207485639U CN 201721576447 U CN201721576447 U CN 201721576447U CN 207485639 U CN207485639 U CN 207485639U
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Abstract
The utility model provides a kind of oilless air compressor air valve structure, belongs to field of mechanical technique.It solves the problems, such as that existing air valve switch gas efficiency is low.In the utility model, oilless air compressor includes the crankcase with air inlet, cylinder barrel is fixed at the top of crankcase, tubbiness piston is equipped in cylinder barrel vertically, air cavity is formed between piston roof and inner wall of cylinder, piston roof, which is equipped with, makes the gas vent that air cavity is connected with piston cavity, air valve structure includes the air-intake valve plate being set in air cavity and the valve deck being fixed on outside cylinder barrel, be connected finite place piece on piston, air-intake valve plate is slidably connected with locating part, air-intake valve plate when gliding can closed grate hole, there is on locating part the limiting section that can limit trip slide on air-intake valve plate；The exhaust passage with entrance and exit is equipped in valve deck, entrance is connected with air cavity, and outlet valve block is equipped between entrance and air cavity and uses air valve plate has the spring that entrance and air cavity are separated to trend.The utility model can improve switch gas efficiency.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of oilless air compressor, particularly a kind of oilless air compressor gas
Valve arrangement.
Background technology
Oil-free air compressor is the main body in compressed air source unit, it is to turn the mechanical energy of prime mover (being typically motor)
It changes the device of gas pressure energy into, is the pressure generator of compressed air.
Oil-free air compressor is to belong to Miniature reciprocating piston compressor, motor single-shaft driving compressor crank shaft rotation
When, by the transmission of connecting rod, there is self-lubricating just to move reciprocatingly without adding the piston of any lubricant, by cylinder inner wall,
The swept volume that cylinder head and piston-top surface are formed then can generating period variation.The piston of piston compressor is from cylinder head
When locating setting in motion, the swept volume in cylinder gradually increases, and at this moment, gas is pushed intake valve open and entered i.e. along air inlet pipe
Cylinder, until when swept volume changes to maximum, intake valve is closed；During the piston reverses direction movement of piston compressor, cylinder
Interior swept volume reduces, and gas pressure raising, when inner pressure of air cylinder reaches and is slightly above pressure at expulsion, air bleeding valve is opened, gas
Body discharges cylinder, until piston motion to extreme position, exhaust valve closure.When the piston of piston compressor is reversed again
During movement, the above process repeats.I.e.：The bent axle of piston compressor rotates a circle, and piston reciprocating is primary, in cylinder in succession
It realizes the process of air inlet, compression, exhaust, that is, completes a working cycles.
Existing oilless air compressor has a problem that：Intake valve is arranged on outside crankcase, by air flue with it is above-mentioned
Swept volume connects.In intake process, gas needs just enter in swept volume by a distance, in exhaust process
In, the gas of partial compression contracting can be entered in air flue, and leading to entire reaction process, there are certain lag, influence entire air inlet
With the efficiency of exhaust.
Utility model content
The purpose of this utility model is that there are the above problems for existing technology, it is proposed that a kind of oilless air compressor air valve
The technical issues of structure, solution is how to improve switch gas efficiency.
The purpose of this utility model can be realized by following technical proposal：Oilless air compressor air valve structure, oil-free pneumatics
Machine includes the crankcase that bottom has air inlet, and cylinder barrel is fixed at the top of crankcase, is equipped with the work in tubbiness in cylinder barrel vertically
Plug, downward, and piston cavity is connected the bung hole of piston by crankcase intracavity with air inlet, the roof and cylinder barrel of the piston
Inner wall between form air cavity, which is characterized in that connect air cavity and piston cavity through offering on the roof of the piston
Logical gas vent, this air valve structure include the air-intake valve plate being set in air cavity and the valve deck being fixed on outside cylinder barrel, the work
Be connected finite place piece beyond the Great Wall, and the air-intake valve plate is slidably connected with locating part enables air-intake valve plate relative to gliding on piston
It is dynamic, and air-intake valve plate when gliding can closed grate hole upper aperture, have on the locating part can limit it is sliding on air-intake valve plate
The limiting section of stroke；The exhaust passage with entrance and exit, the entrance and the air cavity are equipped in the valve deck
Connection, and export and be located on valve deck outer surface, outlet valve block is equipped between the entrance and air cavity and uses air valve plate tool
There is the spring that entrance and air cavity are separated to trend.
During installation, piston is connected with the connecting rod in crankcase, piston to be driven to slide up and down.
It is as follows using process：When piston moves down, air-intake valve plate is moved up under the action of the air pressure in crankcase with the row of unlatching
Aperture on stomata at this point, the gas in crankcase is entered by gas vent in air cavity, is realized and continues air inlet；When piston moves up,
Air-intake valve plate is moved down under the pressure effect in air cavity with aperture on closed grate hole, and the gas in air cavity is compressed to compel to use
Air valve plate, which overcomes the elastic force of spring to move, makes entrance be connected with air cavity, and gas is discharged eventually by outlet, realizes exhaust.
Gas vent is set on top land and air-intake valve plate and be in right over piston, can effectively reduce in this way air-intake valve plate with
The distance between top land, so as to effectively improve reaction speed of the air-intake valve plate during gas is switched, to improve air valve knot
The switch gas efficiency of structure.
In above-mentioned oilless air compressor air valve structure, the gas vent is faced in straight hole shape and with air-intake valve plate,
The air-intake valve plate with piston by way of leaning by the upper orifice closing of gas vent.It, can be with using above-mentioned design
Further shorten the distance between air-intake valve plate and piston, so as to further improve switch gas efficiency.
In above-mentioned oilless air compressor air valve structure, the locating part is the bolt vertically set, described
Air-intake valve plate it is annular in shape, air-intake valve plate is set in outside the bar portion of bolt, and air-intake valve plate be located at bolt head and piston it
Between, the limiting section is the head of bolt.Using above-mentioned design, have the advantages that simple in structure, easy for installation.
Alternatively, in above-mentioned oilless air compressor air valve structure, what the locating part was vertically arranged
Guide rod, air-intake valve plate is annular in shape and is sleeved on outside guide rod, and the limiting section is the limiting for being arranged and being fixed on outside guide rod
Piece, and air-intake valve plate is between banking stop and piston.
In above-mentioned oilless air compressor air valve structure, the gas vent have it is multiple and along the circumferentially distributed of piston, into
Air valve plate can be simultaneously by the upper orifice closing of all gas vents when gliding.
In above-mentioned oilless air compressor air valve structure, valve seat annular in shape is fixed between the valve deck and cylinder barrel,
And air cavity is connected with entrance by the endoporus of valve seat, the outlet valve block is located in valve seat, and outlet valve block is above-mentioned
The lower trend with the endoporus for separating entrance and valve seat of spring effect.
In above-mentioned oilless air compressor air valve structure, the endoporus of the valve seat is set in straight hole shape and vertically
It puts, the both ends of the spring offset respectively with valve deck inner wall and outlet valve block, and the bottom surface of outlet valve block is under the action of the spring
It can be with the top surface of valve deck closely against with by the upper orifice closing of valve seat endoporus.At this point, just the endoporus of entrance and valve seat is separated.
There is the installation annularly protruded in above-mentioned oilless air compressor air valve structure, on the upper surface of the valve seat
Portion, and mounting portion is sleeved on outside the spring, mounting portion and entrance match, and mounting portion is inserted in entrance.Using above-mentioned
Design, effectively improve the assembling of valve seat and valve deck.
In above-mentioned oilless air compressor air valve structure, fan is fixed in the air inlet.
Compared with prior art, this oilless air compressor air valve structure has the following advantages：
1st, be in piston surface by the way that gas vent is set on top land and air-intake valve plate, can effectively reduce in this way into
The distance between air valve plate and top land, so as to effectively improve reaction speed of the air-intake valve plate during gas is switched, to carry
The switch gas efficiency of high air valve structure.
2nd, in intake process, gas first passes through crankcase and is flowing in piston, can take away in crankcase in this way
Partial heat contributes to the heat dissipation of the components such as bent axle, connecting rod, to improve the job stability of air compressor machine.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of oilless air compressor.
Fig. 2 is the enlarged structure schematic diagram at A in Fig. 1.
The positional structure schematic diagram of air-intake valve plate, limiting section and piston three when Fig. 3 is exhaust.
In figure, 1, crankcase；1a, air inlet；2nd, connecting rod；3rd, cylinder barrel；4th, piston；4a, gas vent；5th, fan；6th, air cavity；
7th, air-intake valve plate；8th, valve deck；8a, exhaust passage；9th, locating part；9a, limiting section；10th, outlet valve block；11st, spring；12nd, valve seat；
12a, mounting portion.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one
As shown in Figure 1 to Figure 3, oilless air compressor includes crankcase 1, connecting rod 2, cylinder barrel 3 and piston 4.Wherein, crankcase 1
Bottom offer air inlet 1a, and fan 5 is fixed in air inlet 1a.The top of crankcase 1 offers socket, cylinder barrel 3
It vertically sets, the lower end of cylinder barrel 3 is inserted in socket, and cylinder barrel 3 and the top sealing of crankcase 1 are connected.Piston 4 is in bucket
It shape and is vertically arranged in cylinder barrel 3, the bung hole of piston 4 is set downward, at this point, 4 inner cavity of piston passes through 1 inner cavity of crankcase and air inlet
Mouth 1a connections.Air cavity 6 is formed between the roof of piston 4 and the upper end inner wall of cylinder barrel 3, and runs through on the roof of piston 4 and offers
The gas vent 4a that air cavity 6 is made to be connected with 4 inner cavity of piston.In the present embodiment, gas vent 4a has circumferential direction point multiple and along piston 4
Cloth, and preferably each gas vent 4a is in straight hole shape.Connecting rod 2 is set in crankcase 1, and the upper end of connecting rod 2 is consolidated with 4 phase of piston
Even, it is moved up and down with band piston 4.
This air valve structure is made of air-intake valve plate 7, valve deck 8, locating part 9, outlet valve block 10, spring 11 etc..Wherein, it limits
Part 9 and air-intake valve plate 7 are set in air cavity 6, and locating part 9 is fixedly connected with piston 4, and air-intake valve plate 7 is slidably connected with locating part 9 to be made
Air-intake valve plate 7 can be slided up and down relative to piston 4, and can close the upper hole of all gas vent 4a during the downslide of air-intake valve plate 7 simultaneously
Mouthful, to achieve the purpose that separate 4 inner cavity of air cavity 6 and piston；There is the limit that can limit trip slide on air-intake valve plate 7 on locating part 9
Position portion 9a.
Specifically, as shown in Figures 2 and 3, locating part 9 is the bolt vertically set, the bar portion of bolt and work
Plug 4 is fixedly connected with, and the lower end of the bar portion passes through 4 top of piston and inside piston 4.Air-intake valve plate 7 is annular in shape, and all rows
Stomata 4a is faced with air-intake valve plate 7.Air-intake valve plate 7 be set in outside the upper end of the bar portion of bolt and positioned at the head of bolt and
Between piston 4, i.e., at this point, limiting section 9a is the head of bolt.At this point, air-intake valve plate 7 will by way of leaning with piston 4
The upper orifice closing of gas vent 4a.In actual product, when air-intake valve plate 7 leans with piston 4, air-intake valve plate 7 and bolt
The distance between head is 0.18mm~0.22mm, and preferably this distance is 0.2mm.
Valve deck 8 is connected in outside cylinder barrel 3, and the exhaust passage 8a with entrance and exit is equipped in valve deck 8, wherein, entrance with
Air cavity 6 connects, between entrance and air cavity 6 be equipped with outlet valve block 10 and use air valve plate 10 have entrance and air cavity 6 are separated
The spring 11 of trend；Outlet is located on 8 outer surface of valve deck.
It further illustrates, valve seat 12 annular in shape is fixed between valve deck 8 and cylinder barrel 3, and air cavity 6 and entrance pass through valve seat
12 endoporus is connected.Outlet valve block 10 is located in valve seat 12, and outlet valve block 10 have in the case where above-mentioned spring 11 acts on every
Open the trend of the endoporus of entrance and valve seat 12.Further, the endoporus of valve seat 12 is set in straight hole shape and vertically, bullet
The both ends of spring 11 offset respectively with 8 inner wall of valve deck and outlet valve block 10, and the bottom surface of outlet valve block 10 energy under the effect of spring 11
With the top surface of valve deck 8 entrance and valve seat 12 are separated closely against by the upper orifice closing of 12 endoporus of valve seat, just to realize at this time
The purpose of endoporus.
As shown in Fig. 2, there is the mounting portion 12a annularly protruded, and mounting portion 12a and valve seat on the upper surface of valve seat 12
12 are an integral structure.Mounting portion 12a is sleeved on outside spring 11, and mounting portion 12a and entrance match, and mounting portion 12a is inserted and is embedded in
In entrance, to effectively improve the convenience of assembling valve seat 12 and valve deck 8.
It is as follows using process：When piston 4 moves down, air-intake valve plate 7 moves up to open under the action of the air pressure in crankcase 1
Aperture on gas vent 4a at this point, the gas in crankcase 1 is entered by gas vent 4a in air cavity 6, is realized and continues air inlet；It is living
Plug 4 is when moving up, and air-intake valve plate 7 is moved down under the pressure effect in air cavity 6 with aperture on closed grate hole 4a, the gas in air cavity 6
The movement of the body compressed elastic force that outlet valve block 10 can be forced to overcome spring 11 makes entrance be connected with air cavity 6, and gas is eventually by going out
Mouth discharge, realizes exhaust.
Embodiment two
The present embodiment two is essentially identical with the structure and principle of embodiment one, and different place is：Locating part 9 is perpendicular
The guide rod directly set, air-intake valve plate 7 are sleeved on outside guide rod, and limiting section 9a is the banking stop for being arranged and being fixed on outside guide rod,
And air-intake valve plate 7 is between banking stop and piston 4.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (9)
1. oilless air compressor air valve structure, oilless air compressor includes the crankcase (1) that bottom has air inlet (1a), crankcase
(1) be fixed with cylinder barrel (3) at the top of, be equipped with the piston (4) in tubbiness in cylinder barrel (3) vertically, the bung hole of piston (4) downward, and
Piston (4) inner cavity is connected by crankcase (1) inner cavity with air inlet (1a), the roof of the piston (4) and cylinder barrel (3) it is interior
Air cavity (6) is formed between wall, which is characterized in that running through to offer on the roof of the piston (4) makes air cavity (6) and piston
(4) gas vent (4a) of inner cavity connection, this air valve structure include the air-intake valve plate (7) being set in air cavity (6) and are fixed on cylinder
Cylinder (3) outer valve deck (8), be connected on the piston (4) finite place piece (9), the air-intake valve plate (7) and locating part (9)
Being slidably connected makes air-intake valve plate (7) that can be slided up and down relative to piston (4), and can closed grate hole during air-intake valve plate (7) downslide
The upper aperture of (4a) has the limiting section (9a) that can limit trip slide on air-intake valve plate (7) on the locating part (9)；It is described
Valve deck (8) in be equipped with the exhaust passage (8a) with entrance and exit, the entrance connects with the air cavity (6), and
Outlet is located on valve deck (8) outer surface, and outlet valve block (10) is equipped between the entrance and air cavity (6) and uses air valve plate
(10) there is the spring (11) that entrance and air cavity (6) are separated to trend.
2. oilless air compressor air valve structure according to claim 1, which is characterized in that the gas vent (4a) is in straight hole
It shape and is faced with air-intake valve plate (7), the air-intake valve plate (7) with piston (4) by way of leaning by gas vent
The upper orifice closing of (4a).
3. oilless air compressor air valve structure according to claim 2, which is characterized in that the locating part (9) is along perpendicular
Nogata is to the bolt of setting, and annularly, air-intake valve plate (7) is set in outside the bar portion of bolt, and air inlet the air-intake valve plate (7)
For valve block (7) between the head of bolt and piston (4), the limiting section (9a) is the head of bolt.
4. oilless air compressor air valve structure according to claim 2, which is characterized in that the locating part (9) is vertical
The guide rod of setting, air-intake valve plate (7) is annular in shape and is sleeved on outside guide rod, and the limiting section (9a) is led to be arranged and being fixed on
Banking stop outside bar, and air-intake valve plate (7) is between banking stop and piston (4).
5. oilless air compressor air valve structure according to claim 3 or 4, which is characterized in that the gas vent (4a) has
It is multiple and along the circumferentially distributed of piston (4), the upper aperture of all gas vents (4a) can be sealed simultaneously when air-intake valve plate (7) glides
It closes.
6. oilless air compressor air valve structure according to claim 1, which is characterized in that the valve deck (8) and cylinder barrel (3)
Between be fixed with valve seat annular in shape (12), and air cavity (6) is connected with entrance by the endoporus of valve seat (12), the outlet
Valve block (10) is in the valve seat (12), and outlet valve block (10) is lower with separating entrance and valve seat in above-mentioned spring (11) effect
(12) trend of endoporus.
7. oilless air compressor air valve structure according to claim 6, which is characterized in that the endoporus of the valve seat (12) is in
Straight hole shape and vertically set, the both ends of the spring (11) respectively with valve deck (8) inner wall and outlet valve block (10) phase
It supports, and the bottom surface of outlet valve block (10) can be with the top surface of valve deck (8) closely against with by valve seat (12) under spring (11) effect
The upper orifice closing of endoporus.
8. oilless air compressor air valve structure according to claim 7, which is characterized in that the upper surface of the valve seat (12)
It is upper that with the mounting portion (12a) annularly protruded, and mounting portion (12a) is sleeved on the spring (11) outside, mounting portion (12a) and
Entrance matches, and mounting portion (12a) is inserted in entrance.
9. oilless air compressor air valve structure according to claim 1, which is characterized in that fixed in the air inlet (1a)
There is fan (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576447.9U CN207485639U (en) | 2017-11-22 | 2017-11-22 | Oilless air compressor air valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576447.9U CN207485639U (en) | 2017-11-22 | 2017-11-22 | Oilless air compressor air valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485639U true CN207485639U (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721576447.9U Active CN207485639U (en) | 2017-11-22 | 2017-11-22 | Oilless air compressor air valve structure |
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| Country | Link |
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| CN (1) | CN207485639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676247A (en) * | 2017-11-22 | 2018-02-09 | 浙江洛森压缩机有限公司 | Oilless air compressor air valve structure |
-
2017
- 2017-11-22 CN CN201721576447.9U patent/CN207485639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676247A (en) * | 2017-11-22 | 2018-02-09 | 浙江洛森压缩机有限公司 | Oilless air compressor air valve structure |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317500 Jintang North Road 52-8, East New District, Wenling City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Luosen Compressor Co., Ltd. Address before: 317500 Jintang North Road 52-8, East New District, Wenling City, Taizhou City, Zhejiang Province Patentee before: Zhejiang Lawson Compressor Co. Ltd. |
|
| CP01 | Change in the name or title of a patent holder |