CN218031470U

CN218031470U - Air inlet valve of oil-free screw air compressor

Info

Publication number: CN218031470U
Application number: CN202222178307.3U
Authority: CN
Inventors: 周超
Original assignee: Krupp Fluid Machinery Wuhan Co ltd
Current assignee: Krupp Fluid Machinery Wuhan Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-12-13
Anticipated expiration: 2032-08-18

Abstract

The utility model relates to an there is not oily screw air compressor's admission valve, including the valve body of fixed connection in air compressor department of admitting air, the valve body is from last to including air inlet section and seal segment down in proper order, the air inlet section with the connection can be dismantled to the seal segment, be provided with the filter screen in the air inlet section, air inlet section one side fixedly connected with casing, shells inner wall fixedly connected with fan, the fan output extends to be located the position of filter screen below in the air inlet section, be provided with the division board in the casing, division board top fixedly connected with baffle, the partition is first chamber and second chamber two parts with the regional separation between the roof in division board top and the casing, and the through-hole has been seted up to partition board one side. The utility model relates to an air compressor's technical field that admits air. The utility model discloses make in the filter screen and the dust of filter screen top can be by the discharge air inlet section, prevent that the dust from piling up at the air inlet section of valve body or blockking up the filter screen, guaranteed the normal working effect of air compressor machine.

Description

Air inlet valve of oil-free screw air compressor

Technical Field

The utility model belongs to the technical field of the technique that air compressor admitted air and specifically relates to an there is not oily screw air compressor's admission valve is related to.

Background

An oilless screw air compressor is a positive displacement gas compression machine with rotary working volume. The compression of the gas is realized by the change of the volume, and the change of the volume is realized by the rotary motion of a pair of rotors of the air compressor in the shell, wherein the air inlet valve is an important component of the gas compressor and can effectively control the introduction amount of the gas.

Most do not have oil screw for air compressor admission valve through the filter screen prevent that the dust from getting into the air compressor machine through the admission valve inside, but present most admission valves can only block the entering of dust, and can not discharge the dust, and after the admission valve was used for a long time, the dust can be piled up at the inlet end of admission valve or block up the filter screen to influenced the normal passing through of air, reduced the working effect of air compressor machine.

SUMMERY OF THE UTILITY MODEL

According to the not enough of prior art existence, the utility model aims at providing an there is not oily screw air compressor's admission valve has the dust in the admission valve of conveniently discharging, guarantees the effect of the normal working effect of air compressor machine.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an oilless screw air compressor's admission valve, includes the valve body of fixed connection in oilless screw air compressor department of admitting air, the valve body is from last to including section and the sealed section of admitting air down in proper order, the section of admitting air with the connection can be dismantled to the sealed section, be provided with the filter screen in the section of admitting air, section one side fixedly connected with casing of admitting air, shells inner wall fixedly connected with fan, the fan output extends to the position that is located the filter screen below in the section of admitting air, be provided with the division board in the casing, division board top fixedly connected with baffle, the regional separation between the roof is first chamber and second chamber two parts in with division board top and the casing, the through-hole has been seted up to baffle one side, first chamber is located the second chamber with between the section of admitting air, the fan input extends to in the second chamber, first chamber first portion wears to be equipped with, just first chamber with the intake pipe is provided with vibration subassembly jointly in the section of admitting air.

Through adopting above-mentioned technical scheme, through the cooperation of fan, division board, through-hole, intake pipe and vibration subassembly, blow to the filter screen, make in the filter screen and the dust of filter screen top can be by the discharge air inlet section, prevent that the dust from piling up at the air inlet section of valve body or blockking up the filter screen, guaranteed the normal working effect of air compressor machine.

The present invention may be further configured in a preferred embodiment as: the vibration subassembly includes the dwang, the dwang rotates to wear to locate the section of admitting air with first intracavity, the fixed cover of dwang outer peripheral face is equipped with two cams, cam rotation time intermittent type nature contact the filter screen, the filter screen below is provided with the buffering subassembly, the fixed cover of dwang outer peripheral face is equipped with the impeller, the first spring of first intracavity diapire fixedly connected with, first spring top fixedly connected with sealing plug, the sealing plug with first intracavity wall is interference fit, sealing plug top fixedly connected with kelly, the dwang outer peripheral face corresponds a plurality of draw-in groove has been seted up to the position of kelly, works as when the spring is in natural state, the kelly inserts and corresponds in the draw-in groove, and the sealing plug part was located this moment the through-hole top.

Through adopting above-mentioned technical scheme, through the cooperation of dwang, cam, impeller, kelly and draw-in groove for the fan during operation can drive the dwang and rotate, thereby makes the cam striking filter screen, shakes out the dust in the filter screen, further improvement the clearance effect of dust.

The present invention may be further configured in a preferred embodiment as: buffering subassembly includes two dashpots, and two dashpots are seted up respectively two relative inner walls of air inlet section, just the filter screen both sides are inserted and are corresponded in the dashpot, the filter screen with the dashpot inner wall is laminated mutually, the filter screen with be provided with the second spring between the diapire in the dashpot.

Through adopting above-mentioned technical scheme, through the cooperation of dashpot and second spring for the cam is when striking the filter screen, and the filter screen can vertical motion, has improved the vibration range of filter screen, thereby has improved the clearance effect of dust.

The present invention may be further configured in a preferred embodiment as: the top of the sealing section is provided with an annular groove, the annular groove is filled with a sound attenuation layer, and the inner wall of the annular groove, which is close to the center of the sealing section, is provided with a plurality of sound emission holes.

Through adopting above-mentioned technical scheme, through the cooperation of ring channel, noise damping layer and sound discharging hole for the noise that the gas flow in the sealing section produced can be absorbed by the noise damping layer, thereby has reduced the noise that the valve body during operation produced.

The present invention may be further configured in a preferred embodiment as: the bottom of the air inlet section is fixedly connected with an annular sealing block at a position corresponding to the annular groove, and the annular sealing block is in interference fit with the inner wall of the annular groove.

Through adopting above-mentioned technical scheme, through the setting of annular seal piece, improved the leakproofness of ring channel, prevent that seal section gas from revealing.

The present invention in a preferred embodiment can be further configured to: and a filter layer is arranged in the air inlet pipe.

Through adopting above-mentioned technical scheme, through the setting of filter layer, prevent that the dust from getting into the casing and getting into the valve body, protected the valve body.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the cooperation of fan and casing, make in the filter screen and the filter screen top the dust can be by the discharge air inlet section, prevent that the dust from piling up the air inlet section at the valve body or blockking up the filter screen, the normal working effect of air compressor machine has been guaranteed, through-hole, the intake pipe, the dwang, the cam, the impeller, the cooperation of kelly and draw-in groove, make the fan during operation can drive the dwang and rotate, thereby make cam striking filter screen, shake out the dust in the filter screen, further improvement the clearance effect of dust, and the kelly inserts in corresponding the draw-in groove when the fan is out of work, the dwang can not rotate.

2. Through the cooperation of ring channel, noise damping layer and sound discharging hole for the noise that the gas flow in the sealing section produced can be absorbed by the noise damping layer, thereby has reduced the noise that the valve body during operation produced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is an enlarged view of the embodiment at A in FIG. 1;

FIG. 3 is an enlarged view of the embodiment at B in FIG. 1;

fig. 4 is a three-dimensional sectional view of the housing in the present embodiment.

In the figure, 1, a valve body; 2. an air intake section; 3. a sealing section; 4. filtering with a screen; 5. a housing; 6. a fan; 7. a partition plate; 8. a baffle plate; 9. a first chamber; 10. a second chamber; 11. a through hole; 12. an air inlet pipe; 13. a vibrating assembly; 131. rotating the rod; 132. a cam; 133. a buffer assembly; 1331. a buffer tank; 1332. a second spring; 134. an impeller; 135. a first spring; 136. a sealing plug; 137. a clamping rod; 138. a card slot; 14. an annular groove; 15. a sound-deadening layer; 16. a sound discharge hole; 17. an annular seal block; 18. a filter layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1 to 4, the utility model discloses an there is not oily screw air compressor's admission valve, including fixed connection in the valve body 1 that does not have oily screw air compressor department of admitting air, valve body 1 includes air intake section 2 and seal segment 3 from last to down in proper order, and air intake section 2 can be dismantled through the bolt with seal segment 3 and be connected.

The bottom wall fixedly connected with third spring in seal section 3, third spring top fixedly connected with piston, under the idle state of oil-free screw air compressor, the piston top laminates with the top wall in seal section 3 mutually, and the third spring is in compression state, and the air in the section of admitting air 2 can not get into in the seal section 3. When the oil-free screw air compressor works, the gas pushes the piston to move downwards, and the air in the air inlet section 2 can enter the sealing section 3.

The top of the sealing section 3 is provided with an annular groove 14, the annular groove 14 is filled with a sound-absorbing layer 15, and the inner wall of the annular groove 14 close to the center of the sealing section 3 is provided with a plurality of sound emission holes 16. Noise generated when air flows in the sealing section 3 can be absorbed by the sound deadening layer 15. The sound-deadening layer 15 can be replaced by detaching the seal section 3 and the air intake section 2. The bottom of the gas inlet section 2 is fixedly connected with an annular sealing block 17 corresponding to the position of the annular groove 14, and the annular sealing block 17 is in interference fit with the inner wall of the annular groove 14 to prevent gas leakage.

A filter screen 4 is arranged in the air inlet section 2. 2 one side fixedly connected with casings 5 of air intake section, 5 inner walls fixedly connected with fans 6 of casing, 6 output of fan extend to the position that is located filter screen 4 below in the air intake section 2. The fan 6 blows towards the filter screen 4 from below the filter screen 4 when working, thereby enabling the dust above the filter screen 4 to be blown to the outside of the air inlet section 2. The third spring cannot be deformed by the wind pressure generated by the fan 6.

A partition plate 7 is arranged in the shell 5, a baffle plate 8 is fixedly connected to the top of the partition plate 7, and the top of the baffle plate 8 is connected with the inner top wall of the shell 5. The partition plate divides the area between the upper side of partition plate 7 and the inner ceiling of housing 5 into two parts, first chamber 9 and second chamber 10. One side of the partition board is provided with a through hole 11, and the first cavity 9 and the second cavity 10 are both communicated with the through hole 11.

The first chamber 9 is located between the second chamber 10 and the air intake section 2 and the input of the fan 6 extends into the second chamber 10. An air inlet pipe 12 is arranged on the upper half portion of the first cavity 9 in a penetrating mode, a filter layer 18 is arranged in the air inlet pipe 12, and the filter screen 4 can prevent dust from entering the shell 5. The first chamber 9 and the air inlet section 2 are provided with a vibration assembly 13.

The vibration component 13 comprises a rotating rod 131, and the rotating rod 131 is rotatably arranged in the air inlet section 2 and the first cavity 9 in a penetrating way. Two cams 132 are fixedly sleeved on the outer peripheral surface of the rotating rod 131, the cams 132 intermittently contact the filter screen 4 during rotation, and a buffer assembly 133 is arranged below the filter screen 4.

The buffer assembly 133 includes two buffer slots 1331, the two buffer slots 1331 are respectively opened on two inner walls of the air inlet section 2, and two sides of the filter screen 4 are inserted into the corresponding buffer slots 1331, the filter screen 4 is attached to the inner walls of the buffer slots 1331, and air can not pass through the gap between the filter screen 4 and the inner walls of the buffer slots 1331. A second spring 1332 is arranged between the filter screen 4 and the inner bottom wall of the buffer slot 1331.

The impeller 134 is fixedly sleeved on the outer peripheral surface of the rotating rod 131, and the impeller 134 is positioned in the air inlet section 2. A first spring 135 is fixedly connected to the inner bottom wall of the first cavity 9, a sealing plug 136 is fixedly connected to the top end of the first spring 135, and the sealing plug 136 is in interference fit with the inner wall of the first cavity 9.

The top of the sealing plug 136 is fixedly connected with a clamping rod 137, a plurality of clamping grooves 138 are formed in the position, corresponding to the clamping rod 137, of the outer peripheral surface of the rotating rod 131, and the plurality of clamping grooves 138 are arranged in an annular mode. When the spring is in its natural state, the stem 137 is inserted into the corresponding slot 138, and the sealing plug 136 is now partially positioned over the through hole 11.

The input end inhales when fan 6 works, drives sealing plug 136 downstream, and sealing plug 136 downstream makes kelly 137 break away from with corresponding draw-in groove 138 mutually, and dwang 131 can rotate, until sealing plug 136 move to through-hole 11 below, and the air passes through-hole 11 and gets into second chamber 10 to in being sent to air intake section 2 by fan 6. Gaseous upward movement discharge section of admitting air 2 to carry the dust in the filter screen 4 out section of admitting air 2, and gaseous can drive impeller 134 and rotate, and impeller 134 drives dwang 131 and rotates, and dwang 131 drives cam 132 and rotates, and intermittent type nature striking filter screen 4, thereby makes the dust discharge in the filter screen 4 more abundant.

The implementation principle of the above embodiment is as follows:

when oil-free screw air compressor did not work, start fan 6, the fan 6 during operation input is breathed in, drives sealing plug 136 downstream, and sealing plug 136 downstream makes kelly 137 break away from with corresponding draw-in groove 138 mutually, and dwang 131 can rotate, until sealing plug 136 motion to through-hole 11 below, the air passes through-hole 11 and gets into second chamber 10 to in being delivered to air intake section 2 by fan 6. Gaseous upward movement discharge section 2 that admits air to carry the dust in the filter screen 4 out of section 2 that admits air, and gaseous can drive impeller 134 and rotate, and impeller 134 drives dwang 131 and rotates, and dwang 131 drives cam 132 and rotates, and intermittent type nature striking filter screen 4, thereby make the dust discharge in the filter screen 4 more abundant. After a period of time, the blower 6 is turned off, the sealing plug 136 and the locking rod 137 move upward under the restoring force of the first spring 135, and the locking rod 137 is inserted into the corresponding locking groove 138 to fix the rotating rod 131.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an oilless screw air compressor's admission valve, includes valve body (1) of fixed connection in oilless screw air compressor department of admitting air, valve body (1) is from last to including section (2) and the seal segment (3) of admitting air down in proper order, admit air section (2) with the connection can be dismantled in seal segment (3), be provided with filter screen (4), its characterized in that in section (2) of admitting air: air intake section (2) one side fixedly connected with casing (5), casing (5) inner wall fixedly connected with fan (6), fan (6) output extends to be located the position of filter screen (4) below in air intake section (2), be provided with division board (7) in casing (5), division board (7) top fixedly connected with baffle (8), the partition board is with the zone separation between division board (7) top and the roof in casing (5) for first chamber (9) and second chamber (10) two parts, through-hole (11) have been seted up to baffle one side, first chamber (9) are located second chamber (10) with between air intake section (2), fan (6) input extends to in second chamber (10), intake pipe (12) are worn to be equipped with in first chamber (9) first portion, just first chamber (9) with be provided with vibration subassembly (13) jointly in air intake section (2).

2. An air intake valve of an oil-free screw air compressor as claimed in claim 1, wherein: vibration subassembly (13) include dwang (131), dwang (131) rotate and wear to locate air inlet section (2) with in first chamber (9), the fixed cover of dwang (131) outer peripheral face is equipped with two cams (132), cam (132) rotate time intermittent type nature contact filter screen (4), filter screen (4) below is provided with buffer module (133), the fixed cover of dwang (131) outer peripheral face is equipped with impeller (134), first chamber (9) inner bottom wall fixedly connected with first spring (135), first spring (135) top fixedly connected with sealing plug (136), sealing plug (136) with first chamber (9) inner wall is interference fit, sealing plug (136) top fixedly connected with kelly (137), dwang (131) outer peripheral face corresponds a plurality of draw-in groove (138) have been seted up to the position of kelly (137), works as when the spring is in natural state, kelly (137) insert and correspond in draw-in groove (138), and sealing plug (136) part is located through-hole (11) top this moment.

3. An air intake valve for an oil-free screw air compressor as claimed in claim 2, wherein: buffer unit (133) include two dashpots (1331), and two dashpots (1331) are seted up respectively in two relative inner walls of air intake section (2), just filter screen (4) both sides are inserted and are corresponded in dashpot (1331), filter screen (4) with dashpot (1331) inner wall is laminated mutually, filter screen (4) with be provided with second spring (1332) between the bottom wall in dashpot (1331).

4. An air intake valve for an oil-free screw air compressor as claimed in claim 1, wherein: the top of the sealing section (3) is provided with an annular groove (14), the annular groove (14) is filled with a sound-absorbing layer (15), and the inner wall of the annular groove (14) close to the center of the sealing section (3) is provided with a plurality of sound emission holes (16).

5. An air inlet valve of an oil-free screw air compressor as claimed in claim 4, wherein: the bottom of the air inlet section (2) corresponds to the annular groove (14), and an annular sealing block (17) is fixedly connected to the position of the annular groove (14), and the annular sealing block (17) is in interference fit with the inner wall of the annular groove (14).

6. An air intake valve for an oil-free screw air compressor as claimed in claim 1, wherein: a filter layer (18) is arranged in the air inlet pipe (12).