CN115234476B

CN115234476B - Filtering structure of compressor

Info

Publication number: CN115234476B
Application number: CN202211146933.2A
Authority: CN
Inventors: 唐雪峰; 王纬; 谷婷婷; 周宗海
Original assignee: Nanjing Superstar Medical Equipment Co ltd
Current assignee: Nanjing Superstar Medical Equipment Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-01-06
Anticipated expiration: 2042-09-21
Also published as: CN115234476A

Abstract

The invention provides a filter structure of a compressor, which belongs to the technical field of compressors and comprises a first-stage filter element, wherein one end of the first-stage filter element is communicated with a second-stage filter element, and the other end of the second-stage filter element is communicated with a third-stage filter element; and the air outlet of the three-stage filter element is communicated with a balanced air supply assembly which is used for uniformly supplying air. The invention solves the problems that the existing filter structure of the compressor still brings partial noise in the use process, and the air blowing sometimes has unstable phenomenon, thereby affecting the use of patients.

Description

Filtering structure of compressor

Technical Field

The invention belongs to the technical field of compressors, and particularly relates to a filtering structure of a compressor.

Background

In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient. An air compressor is needed to be used in the breathing machine, a filter device is used at an air inlet of the compressor, and sufficient and clean air needs to be provided as an air source.

The prior art bulletin numbers are: CN209637965U, patent name: the utility model provides a compressor filter equipment, its tertiary filter equipment who discloses a compressor, includes one-level filter equipment, second grade filter equipment and tertiary filter equipment, one-level filter equipment includes one-level air inlet and one-level gas outlet, and second grade filter equipment includes second grade air inlet and second grade gas outlet, and tertiary filter equipment includes tertiary air inlet and tertiary gas outlet, second grade air inlet and one-level gas outlet butt joint, tertiary air inlet and second grade gas outlet butt joint, second grade filter equipment includes second grade filter casing and covers the second grade filter lid in second grade filter casing one end, the second grade air inlet sets up on second grade filter covers, and the second grade gas outlet sets up in the second grade filter casing other end, be equipped with the filter core in the second grade filter casing, second grade gas outlet front end is equipped with an at least diaphragm, the diaphragm sets up along second grade gas outlet diameter direction. Although certain noise can be removed and the output air tends to be stable, the noise can still bring partial noise in the using process, and the phenomenon of instability can also occur sometimes when the air is blown out, so that the use of a patient is influenced.

Disclosure of Invention

The invention provides a filter structure of a compressor, which aims to solve the problems that the existing filter structure of the compressor still brings partial noise in the use process, and the air blowing sometimes has an unstable phenomenon so as to influence the use of a patient.

The embodiment of the invention provides a filter structure of a compressor, which comprises a first-stage filter element, wherein one end of the first-stage filter element is communicated with a second-stage filter element, and the other end of the second-stage filter element is communicated with a third-stage filter element; the air outlet of the three-stage filter element is communicated with a balanced air supply assembly which is used for uniformly supplying air;

the balanced air supply assembly comprises a first change assembly and a second change assembly connected with the first change assembly;

the first changing assembly comprises a first pressurizing space communicated with the air outlet of the third-stage filter element, a first arranging sheet arranged in the first pressurizing space, and a first changing strip connected with a first changing table;

the second variable assembly comprises a second pressurized space fixedly connected with the first pressurized space into a whole, a third bearing sheet arranged in the second pressurized space, a fifth passage connected with the third bearing sheet, a second arranging sheet, a second variable strip and a switch connected with the second variable strip;

a second passage is reserved at one end of the first pressurizing space, the other end of the first pressurizing space is connected with the second pressurizing space, and a third passage is formed by blowing air to the second pressurizing space through the first pressurizing space;

the radial span of the passage three is smaller than that of the pressurization space I, and the radial span of the passage two is smaller than that of the passage three;

the first arranging piece is fixedly connected to the center inside the first pressurizing space and used for changing the shape of air, and a plurality of circular holes III are reserved in the first arranging piece;

the transverse section of the first change table is of an isosceles trapezoid structure, the first change table is arranged at the third position of the passage, one side of the first change table with a large radial span is positioned in the first pressurizing space, and one side of the first change table with a small radial span is positioned in the second pressurizing space and is connected with the first change bar;

the third bearing sheet is arranged at one end of the second pressurizing space close to the third passage, one side, facing the first pressurizing space, of the third bearing sheet is fixedly connected with the second finishing sheet, a plurality of round holes are reserved in the second finishing sheet, and the second finishing sheet and the first changing strip are connected with each other.

A fifth passage is arranged at the center of the other side of the third bearing sheet, extends to the outside of the second pressurizing space through the side wall of the second pressurizing space and is communicated with the first pressurizing space;

the switch comprises a second changing table and a ring-shaped blocking sheet, and a plurality of second changing strips are arranged between the second changing table and the third bearing sheet at equal intervals;

the inner circumferential surface of the blocking piece and the inner circumferential surface of the second pressurizing space are fixedly connected and are not in clearance connection, the second change table is embedded in the blocking piece, a plurality of blocking strips are arranged on the circumferential surfaces of two ends of the second change table, and the second change table can change towards the direction of the transverse center line of the second change table;

a fifth round hole is reserved in the middle of the second changing table towards the direction of a transverse center line, a plurality of strip-shaped channels are reserved on the outer peripheral surface of the second changing table, the strip-shaped channels are arranged at equal intervals, the transverse spans of the strip-shaped channels are different, the strip-shaped channels are symmetrically changed towards the circumferential direction of the strip-shaped channels, the horizontal radial spans of the second changing table are the same, and the wall surface of the second changing table, which is positioned at the side of the strip-shaped channels, is in close contact with the blocking sheet;

the flexibility of the first changing strip is smaller than that of the second changing strip, the first changing table and the third bearing sheet are connected with each other through the first guiding column, the second changing table and the third bearing sheet are connected with each other through the second guiding columns, the first changing strip is connected to the outer peripheral surface of the first guiding column in a hooped mode, and the second changing strip is connected to the outer peripheral surface of the second guiding column in a hooped mode.

Further, one end of the second pressurizing space and the first pressurizing space are communicated with each other, the other end of the second pressurizing space is a passage four, and the radial span of the passage four at the one end of the second pressurizing space is the same as that of the passage two at the one end of the first pressurizing space.

The invention has the beneficial effects that:

1. the protective shell can remove redundant noise in the filter structure through installation of the protective shell, so that the comfort degree of a patient during use is ensured.

2. The invention is installed through the equilibrium air feeding assembly, the air blows to the equilibrium air feeding assembly, the equilibrium air feeding assembly carries out arrangement to the blown air, the equilibrium air feeding assembly can be used in the interval with large fluctuation of the compression impulse, has strong appropriateness to the condition with large fluctuation of the compression intensity, in order to keep the balance of the air movement amount in the unit time, and the interval of the air movement amount difference fluctuation in the unit time after the air fluctuates through the equilibrium air feeding assembly is between five percent and eight percent, and under the same working condition, the interval of the air movement amount difference fluctuation in the unit time after the air passes through the equilibrium air feeding assembly is between three percent and five percent, and the operation and control function of the equilibrium air feeding assembly is strong, the interval of the air movement amount in the unit time after the air passes through the equilibrium air feeding assembly is small, and the oscillation brought to the filtering structure by the air compression amount can be reduced, the flatness of the filtering structure can be ensured, and the comfort of the patient can be applied.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of a primary filter element, a secondary filter element and a tertiary filter element according to an embodiment of the present invention;

FIG. 3 is a first schematic view of a balanced gas delivery assembly according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a second equalizing air feeding assembly according to an embodiment of the present invention;

FIG. 6 is a schematic view illustrating an inner air variation range structure of the balanced air supply assembly according to the embodiment of the present invention;

FIG. 7 is a schematic view of a first change table, a second change table and a carrier sheet engagement structure of a balanced plenum assembly according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional structural view of a protective shell according to an embodiment of the present invention;

FIG. 9 is an enlarged structural view of the embodiment in FIG. 8;

FIG. 10 is a schematic structural diagram of a second noise removing assembly of the shield shell according to the embodiment of the present invention;

FIG. 11 is a schematic diagram of the overall structure of a noise removing assembly II of the shield shell according to the embodiment of the present invention;

FIG. 12 is a schematic cross-sectional view of a second noise removing assembly of the shield shell according to the embodiment of the present invention;

reference numerals: 1. a first-stage filter element; 2. a secondary filter element; 3. a third stage filter element; 4. a protective shell; 5. a balanced air delivery assembly; 51. a first variable component; 52. a second variable component; 511. a first pressurizing space; 512. arranging a first wafer; 513. changing a first platform; 514. a first change bar; 5111. a second path; 5112. a third path; 5121. a third round hole; 521. a second pressurizing space; 5211. a fourth path; 522. a third bearing sheet; 523. a fifth path; 524. arranging a second sheet; 525. a second change bar; 526. a switch; 5241. a fourth round hole; 5261. a second change table; 5262. a barrier sheet; 52611. a barrier strip; 52612. a fifth round hole; 52613. strip-shaped ditches; 01. leading to a first column; 02. leading to column two.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention. Like reference numerals in the drawings denote like elements. It should be noted that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

Referring to fig. 1 to 12, an embodiment of the present invention provides a filter structure of a compressor, including a first-stage filter element 1, one end of the first-stage filter element 1 is connected to a second-stage filter element 2, the other end of the second-stage filter element 2 is connected to a third-stage filter element 3, a protective shell 4 is installed outside the first-stage filter element 1, the second-stage filter element 2 and the third-stage filter element 3, and the protective shell 4 is used for removing noise propagated from the first-stage filter element 1, the second-stage filter element 2 and the third-stage filter element 3; the air outlet of the three-stage filter element 3 is communicated with a balanced air supply component 5, and the balanced air supply component 5 is used for uniformly supplying air.

The equalizing air supply unit 5 includes a first changing unit 51 for changing the amount of movement of the discharged air per unit time, and a second changing unit 52 for changing the amount of movement of the discharged air per unit time to a second change and balance the amount of movement of the air per unit time.

The first variation unit 51 includes a first pressurizing space 511 communicating with the air outlet of the third stage cartridge 3, a first settling sheet 512 disposed inside the first pressurizing space 511, and a first variation bar 514 engaged with the first variation table 513.

The first variable strip 514 is a spiral beryllium copper wire and is selected according to the difference formed by the movement amount of the air at the air outlet in unit time, the first variable strip 514 is still in a pressing state when the movement amount of the air in unit time is stable, the initial pressing distance is determined according to the difference of the air pressing impulse and the variable distance of the first variable strip 514, the first variable table 513 can be opened in the initial pressing state all the time, and the situation that the inner peripheral surfaces of the first variable table 513 and the shell are in close contact with each other to cause that the equipment cannot work when the air pressing impulse is overlarge is prevented.

A second passage 5111 is reserved at one end of the first pressurizing space 511, the other end of the first pressurizing space 511 is connected with the second pressurizing space 521, and a third passage 5112 is formed in the gap where air is blown to the second pressurizing space 521 through the first pressurizing space 511; the radial span of the third passage 5112 is less than the radial span of the first plenum 511, and the radial span of the second passage 5111 is less than the radial span of the third passage 5112.

Furthermore, a first trimming sheet 512 is fixedly connected to the center inside the first pressurizing space 511, the first trimming sheet 512 is used for changing the shape of air, and a plurality of circular holes III 5121 are reserved on the first trimming sheet 512; the transverse section of the first changing table 513 is an isosceles trapezoid structure, the first changing table 513 is arranged at the third passage 5112, one side of the first changing table 513 with a large radial span is positioned in the first pressurizing space 511, one side of the first changing table 513 with a small radial span is positioned in the second pressurizing space 521 and is connected with the first changing bar 514.

The first changing assembly 51 ensures the balance of the amount of air movement in unit time in the early stage by changing the reduction or enlargement of the changing space between the first changing table 513 and the housing under the condition that the air pressure impulse is increased or reduced.

The air is blown into the first pressurizing space 511, and the amount of movement of the air per unit time is controlled to be varied by a slight difference due to a change in the amount of pressing impulse, the surface of each part in the first pressurizing space 511 and the inside thereof, and the like, so that the difference between the steady value and the estimated value of the amount of movement of the air per unit time is not zero. Therefore, the second variation component 52 controls the movement amount of the air per unit time, so as to reduce the difference.

The second variable component 52 includes a second pressurized space 521 integrally connected with the first pressurized space 511, a third carrier 522 installed in the second pressurized space 521, a fifth passage 523 for engaging the third carrier 522, a second arrangement 524, a second variable strip 525, and a second switch 526 for engaging the second variable strip 525.

The third bearing sheet 522 is arranged at one end of the second pressurizing space 521 close to the third passage 5112, one side of the third bearing sheet 522 facing the first pressurizing space 511 is fixedly connected with the second trimming sheet 524, a plurality of round holes 5241 are reserved on the second trimming sheet 524, and the second trimming sheet 524 and the first changing strip 514 are connected with each other. A passage five 523 is arranged at the center of the other side of the bearing sheet three 522, and the passage five 523 extends to the outside of the pressurizing space two 521 through the side wall of the pressurizing space two 521 and is communicated with the pressurizing space one 511. The third carrier 522 is connected to the first pressurized space 511 through the fifth passageway 523, so that the pressing impulse of the first variation station 513 guided to the third carrier 522 through the first variation bar 514 is consistent with the pressing impulse of the first pressurized space 511, thereby preventing the equalizing air supply module 5 from bearing air pressure, and further prolonging the service life of the equalizing air supply module 5.

The switch 526 includes a second stage 5261 and a ring-shaped barrier 5262, and the plurality of second stage variation strips 525 are installed at equal intervals between the second stage variation 5261 and the third carrier 522. The inner peripheral surfaces of the barrier piece 5262 and the second pressurizing space 521 are fixedly connected without a gap, the second variable table 5261 is fitted in the barrier piece 5262, a plurality of barrier strips 52611 are attached to the peripheral surfaces of both ends of the second variable table 5261, and the second variable table 5261 can be moved in the direction of the transverse center line thereof. A circular hole five 52612 is reserved in the middle of the second variable platform 5261 towards the direction of the transverse center line, a plurality of strip-shaped grooves 52613 are reserved on the outer peripheral surface of the second variable platform 5261, the strip-shaped grooves 52613 are arranged at equal intervals, the transverse spans of the strip-shaped grooves 52613 are different, the strip-shaped grooves 52613 are symmetrically changed towards the circumferential direction, the horizontal radial spans of the second variable platform 5261 are the same, and the wall surface of the second variable platform 5261 at the side of the strip-shaped grooves 52613 is tightly contacted with the barrier piece 5262.

The second variable strip 525 is a spiral beryllium copper wire, so that in the process of ensuring the smoothness of the second variable platform 5261, the accurate moving distance of the second variable platform 5261 under the change of the corresponding pressing impulse in the transverse center line direction is ensured, and the barrier strips 52611 are arranged at two ends of the second variable platform 5261 so as to ensure that the second variable platform 5261 is changed in a preset area and cannot excessively prolong and lose the deformation of the second variable platform 5261; the circular hole five 52612 in the center of the second variable table 5261 allows some air to be blown out, so that the air is prevented from being blown out through the strip-shaped grooves 52613 on the outer peripheral surface, and the accuracy of the movement amount of the air per unit time in the working process is reduced.

The barrier 5262 is in contact with the inner surface of the housing, and the barrier 5262 is in close contact with the housing, so that air cannot penetrate between the barrier 5262 and the housing, and thus, the variation between the movable stage two 5261 and the barrier 5262 is ensured, and the leakage prevention function between the movable stage two 5261 and the peripheral surface of the barrier 5262 is ensured, and when the barrier 5262 is at the head of the movable stage two 5261, air can be blown out only from the circular hole five 52612.

The second variable element 52 varies the number of the linear channels 52613 capable of blowing air and the variation range thereof in the direction of the second variable table 5261 through the variation barrier 5262 under the condition that the air pressure is increased or decreased. The variation range of the second variation station 5261 is varied more finely to ensure the accuracy and balance of the amount of air movement in a unit time.

The flexibility of the first changing strip 514 is smaller than that of the second changing strip 525, the first changing table 513 and the third bearing sheet 522 are connected with each other through the first guiding column 01, the second changing table 5261 and the third bearing sheet 522 are connected with each other through the second guiding columns 02, the first changing strip 514 is connected on the outer peripheral surface of the first guiding column 01 in a hooped mode, and the second changing strip 525 is connected on the outer peripheral surface of the second guiding column 02 in a hooped mode. The purpose of installing the first guide column 01 and the second guide column 02 is to prevent the first changing table 513 and the second changing table 5261 from changing in the direction of the transverse center line under the pressing impulse. Round holes for assembling guide columns are reserved on the first changing table 513 and the second changing table 5261, so that the changing tables are prevented from being separated, the transverse span of the first leading column 01 and the second leading column 02 can be corrected according to the deformation of the changing strip and the like, and a stop piece and the like can be assembled at one ends of the first leading column 01 and the second leading column 02; the first 01 and second 02 guide columns can also be extendable and retractable engagement columns that engage with the first 513 and second 5261 change stations, respectively.

The middle parts of the first arranging sheet 512 and the second arranging sheet 524 are both solid bodies and structures with holes at the sides, the hole structures of the first arranging sheet 512 have a high air change speed at the middle part according to the characteristics of air change in the shell, and the central solid bodies can block blown air, enable the blown air to be uniformly diffused and reduce the air change to wash the first changing table 513 to cause the blown air to be damaged; the hole structure of the second arrangement plate 524 is also based on the air variation feature, and the central entity can diffuse the air variation in the second pressurized space 521 toward the outside, so as to prevent the air variation rate from being too large and passing through the hole in the center of the second variation table 5261 rapidly. So as to ensure that the air fluctuation region does not change too much, the radial span of the passage four 5211 at the head of the pressurized space two 521 is the same as the radial span of the passage two 5111 at the head of the pressurized space one 511.

The balanced air supply assembly 5 can be used in a section with large variation of the compression impulse, has strong suitability under the condition of large variation of the compression intensity, and ensures the balance of the air movement amount in unit time; the interval of the difference of the movement amount of the air in the unit time after the air is changed by the balanced air supply component 5 is between five percent and eight percent, and the interval of the difference of the movement amount of the air in the unit time after the air is changed by the balanced air supply component 5 is approximately between three percent and five percent under the same working condition, the operation and control function of the balanced air supply component 5 is strong, the interval of the change of the movement amount of the air in the unit time after the air is changed by the balanced air supply component 5 is small, the oscillation of the filtering structure caused by the air compression impulse can be reduced, the smoothness of the filtering structure during the application can be ensured, and the comfort of the patient during the application can be ensured.

The protective shell 4 comprises a first shell 46, a second shell 47 is arranged in the first shell 46, two ends of the second shell 47 are fixedly connected with two transverse wall surfaces in the first shell 46, a plurality of groups of first noise removing assemblies 48 are arranged on the inner circumferential surface of the second shell 47, a second noise removing assembly 49 is arranged between the first shell 46 and the second shell 47, and a first rock wool 45 is arranged between the second shell 47 and the first-stage filter element 1, the second-stage filter element 2 and the third-stage filter element 3;

the noise removing assembly I48 comprises a shell III 411 fixedly connected to the inner circumferential surface of a shell II 47, the shell III 411 is in a funnel shape, a plurality of round holes I412 are reserved on the shell III 411, a plurality of shell VI 419 are fixedly connected to the inside of the shell III 411, the shell VI 419 is in a funnel shape, and round holes II 420 are reserved on each shell VI 419;

the second noise removing component 49 comprises a fourth shell 415 fixedly connected to the outer peripheral surface of the second shell 47, two vertical ends of the fourth shell 415 are through, a fifth shell 416 is fixedly connected between every two adjacent fourth shells 415, the fifth shell 416 is of an arc-shaped structure, a plurality of second bearing sheets 417 are fixedly connected in the fourth shell 415 and the fifth shell 416, circular holes are reserved in the second bearing sheets 417 at equal intervals, noise removing particles 418 are placed between every two adjacent bearing sheets 417, channels 413 mutually communicated with the fourth shells 415 are reserved in the second shell 47, first bearing sheets 414 are fixedly connected in the channels 413, and circular holes are reserved in the first bearing sheets 414 at equal intervals;

the plurality of fourth housings 415 are arranged at equal intervals towards the direction of the transverse center line of the second housing 47, and the plurality of channels 413 and the noise removing assembly one 48 are arranged on the second housing 47 in a staggered mode.

A noise removing space is reserved between the second shell 47 and the first shell 46, and the rock wool second 410 is arranged in the noise removing space.

One end of the third shell 411 close to the second shell 47 is fixedly connected with a first passage 421, and the first passage 421 penetrates through the second shell 47 and is communicated with the noise removing space.

The inner circumferential surface of the first shell 46 is reserved with a refraction opening.

The noise removing particles 418 are ceramic beads, and the noise removing particles 418 are provided with flow ports.

The implementation mode is specifically as follows: when the air-purifying device is in use, air sequentially enters the first-stage filter element 1, the second-stage filter element 2 and the third-stage filter element 3 to be filtered, noise in the filtering structure is transmitted into the third shell 411 through the first round hole 412, then is transmitted into each second round hole 420 according to times, the noise removing effect is achieved through refraction of the second shell 419 for a plurality of times, the noise is transmitted into the fourth shell 415 and the fifth shell 416 through the channel 413, the noise is removed through the noise removing particles 418, the noise is repeatedly refracted and transmitted into the first shell 47 and the second shell 48 and the second shell 49 through the second shell 47 to be removed, and the noise removing is performed by matching with the first rock wool 45 and the second rock wool 410, so that the noise generated in the filtering structure is removed, the filtered air is blown into the balanced air-feeding component 5, the blown air is trimmed by the balanced air-feeding component 5, and the air is blown into the first pressurizing space 511 through the second channel 5111, and the first trimming sheet 512 can enable the air to be uniformly dispersed in the channel of the first pressurizing space 511; the change of the specification of the opening span of the first pressurizing space 511 enables the radial span of the passage to be instantly enlarged, the work done by the movement of the air is converted into pressing impulse, when the air pressing impulse is enlarged, the change rate of the air between the first changing table 513 and the shell is accelerated, the movement amount of the air in unit time is increased, the strain force of the first changing bar 514 is smaller than the pressing force of the air pressing on the first changing table 513, the first changing table 513 is pressed by the air pressing impulse to change towards the flow direction of the air, the air changing space between the first changing table 513 and the shell is reduced, the movement amount of the air in unit time is reduced, when the air pressing impulse pressing on the first changing table 513 is the same as the initial pressing impulse of the first changing bar 514, the first changing table 513 is not changed, and the movement amount of the air in unit time is stable; similarly, when the pressing impulse of air is smaller, the changing rate between first changing table 513 and the shell is smaller, the moving amount in the unit time is smaller, the pressing impulse of first changing table 514 is larger than the pressing impulse of air pressing on first changing table 513, first changing table 513 moves reversely under the pushing of first changing table 514, the air changing space between first changing table 513 and the shell is larger, the moving amount of air in the unit time is larger, when the pressing impulse of air pressing on first changing table 513 is the same as the initial pressing impulse of first changing table 514, first changing table 513 is not changed, and the moving amount of air in the unit time is stable; when the air is blown to the second changing assembly 52, the second tidying piece 524 can uniformly blow the air to the strip-shaped groove 52613 of the second pressurizing space 521, when the pressing impulse of the air is increased, the changing rate of the air in the strip-shaped groove 52613 is increased, the moving amount in unit time is increased, the initial deformation force of the second changing strip 525 is smaller than the pressing impulse of the air pressing on the second changing table 5261, the second changing table 5261 is changed towards the flowing direction of the air under the pressing impulse of the air, the blocking piece 5262 blocks one section of the strip-shaped groove 52613, the area where the air is changed is reduced, the moving amount of the air in unit time is reduced, the pressing impulse of the air pressing on the second changing table 5261 is equal to the deformation force when the second changing strip 525 is prolonged, the second changing table 5261 stops changing, and the moving amount of the air in unit time is stable; as described above, when the pressing impulse of the air is small, the rate of change of the air in the stripe-shaped groove 52613 is small, the amount of movement of the air per unit time is small, the deformation force of the second movable strip 525 is larger than the pressing impulse of the air pressing on the second movable strip 5261, the second movable strip 5261 is reversely moved by the pulling of the second movable strip 525, the barrier piece 5262 opens the stripe-shaped groove 52613, the space for the movement of the air in the stripe-shaped groove 52613 is large, the amount of movement of the air per unit time is large until the pressing impulse of the air pressing on the second movable strip 5261 is equal to the deformation force when the second movable strip 525 is extended, the movement of the second movable strip 5261 is stopped, the amount of movement of the air per unit time is stable, and the air is smoothly sent out through the above-mentioned operation.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A filter structure of a compressor comprises a first-stage filter element (1), wherein one end of the first-stage filter element (1) is communicated with a second-stage filter element (2), and the other end of the second-stage filter element (2) is communicated with a third-stage filter element (3), and is characterized in that a protective shell (4) is arranged at the outer sides of the first-stage filter element (1), the second-stage filter element (2) and the third-stage filter element (3), and the protective shell (4) is used for removing noise transmitted from the first-stage filter element (1), the second-stage filter element (2) and the third-stage filter element (3); an air outlet of the three-stage filter element (3) is communicated with a balanced air supply assembly (5), and the balanced air supply assembly (5) is used for uniformly supplying air;

the balanced air feeding assembly (5) comprises a first variable assembly (51) and a second variable assembly (52) connected with the first variable assembly;

the first changing assembly (51) comprises a first pressurizing space (511) communicated with the air outlet of the third-stage filter element (3), a first arranging sheet (512) arranged in the first pressurizing space (511) and a first changing strip (514) which is mutually connected with the first changing table (513);

the second change component (52) comprises a second pressurizing space (521) which is fixedly connected with the first pressurizing space (511) into a whole, a third bearing sheet (522) which is arranged in the second pressurizing space (521), a fifth passage (523) which is mutually connected with the third bearing sheet (522), a second tidying sheet (524) and a second change strip (525) which are mutually connected with a switch (526);

a second passage (5111) is reserved at one end of the first pressurization space (511), the other end of the first pressurization space (511) is connected with the second pressurization space (521), and a third passage (5112) is formed in a gap where air is blown to the second pressurization space (521) through the first pressurization space (511);

the radial span of said passage three (5112) is less than the radial span of plenum one (511), the radial span of said passage two (5111) is less than the radial span of passage three (5112);

the first finishing sheet (512) is fixedly connected to the center inside the first pressurizing space (511), the first finishing sheet (512) is used for changing the shape of air, and a plurality of circular holes III (5121) are reserved on the first finishing sheet (512);

the transverse section of the first varying table (513) is an isosceles trapezoid structure, the first varying table (513) is arranged at the third passage (5112), the side with the large radial span of the first varying table (513) is positioned in the first pressurizing space (511), and the side with the small radial span of the first varying table (513) is positioned in the second pressurizing space (521) and is jointed with the first varying bar (514);

the third bearing sheet (522) is arranged at one end, close to the third passage (5112), in the second pressurizing space (521), the third bearing sheet (522) is fixedly connected with the second finishing sheet (524) towards one side of the first pressurizing space (511), a plurality of round holes four (5241) are reserved in the second finishing sheet (524), and the second finishing sheet (524) and the first changing strip (514) are connected with each other;

a fifth passage (523) is arranged at the center of the other side of the third bearing sheet (522), and the fifth passage (523) extends to the outside of the second pressurizing space (521) through the side wall of the second pressurizing space (521) and is communicated with the first pressurizing space (511);

the switch (526) comprises a second variable table (5261) and a ring-shaped barrier sheet (5262), and a plurality of second variable strips (525) are arranged between the second variable table (5261) and the third bearing sheet (522) at equal intervals;

the inner peripheral surfaces of the barrier sheet (5262) and the second pressurizing space (521) are fixedly connected without a gap, the second variable table (5261) is embedded in the barrier sheet (5262), a plurality of barrier strips (52611) are arranged on the peripheral surfaces of two ends of the second variable table (5261), and the second variable table (5261) can move towards the transverse center line direction;

a fifth round hole (52612) is reserved in the middle of the second variable platform (5261) towards the direction of a transverse center line, a plurality of strip-shaped channels (52613) are reserved on the outer peripheral surface of the second variable platform (5261), the strip-shaped channels (52613) are arranged at equal intervals, the transverse spans of the strip-shaped channels (52613) are different, the strip-shaped channels (52613) are uniformly changed towards the circumferential direction of the strip-shaped channels, the horizontal radial spans of the second variable platform (5261) are the same, and the wall surface of the second variable platform (5261) at the side of the strip-shaped channels (52613) is in close contact with the blocking piece (5262);

the flexibility of the first change strip (514) is less than that of the second change strip (525), the first change table (513) and the third bearing sheet (522) are connected with each other through the first guide column (01), the second change table (5261) and the third bearing sheet (522) are connected with each other through a plurality of second guide columns (02), the first change strip (514) is connected to the outer peripheral surface of the first guide column (01) in a hooped mode, and the second change strip (525) is connected to the outer peripheral surface of the second guide column (02) in a hooped mode;

the centers of the first tidying piece (512) and the second tidying piece (524) are both solid and a structure with a hole at the side.

2. The filtering structure of a compressor according to claim 1, wherein: one end of the second pressurized space (521) and the first pressurized space (511) are communicated with each other, the other end of the second pressurized space (521) is a passage four (5211), and the radial span of the passage four (5211) at the one end of the second pressurized space (521) is the same as the radial span of the passage two (5111) at the one end of the first pressurized space (511).