CN217152239U

CN217152239U - Air compressor machine amortization structure and double-cylinder air compressor machine of admitting air with general filter core

Info

Publication number: CN217152239U
Application number: CN202221058241.8U
Authority: CN
Inventors: 孙邦国; 陈华成; 朱冬冬
Original assignee: Zhejiang Shengpa Electromechanical Co ltd
Current assignee: Zhejiang Shengpa Electromechanical Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-09
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses an air compressor air inlet noise reduction structure with a general filter element and a double-cylinder air compressor, which comprises a shell and a filter element, wherein the shell is provided with an inner cavity, the shell comprises a first half shell and a second half shell, the first half shell is provided with an installation cavity with a raised cavity wall, the installation cavity is provided with a cavity opening, the installation cavity is positioned in the inner cavity of the shell, the second half shell is provided with an annular convex edge for sealing and covering the cavity opening of the installation cavity, the outer wall of the filter element is provided with an outer ring edge, the filter element is inserted in the installation cavity, the annular convex edge tightly presses the outer ring edge on the filter element on the edge of the cavity opening of the installation cavity, the annular convex edge is internally provided with a ventilation space, the annular convex edge is provided with a ventilation port communicated with the ventilation space and the inner cavity of the shell, the shell is provided with an air inlet communicated with the inner cavity of the installation cavity and an air outlet communicated with the inner cavity of the shell, and the air inlet of the air inlet enters the shell from the ventilation port after passing through the filter element in the installation cavity, the utility model discloses the structure is compacter.

Description

Air compressor machine amortization structure and double-cylinder air compressor machine of admitting air with general filter core

Technical Field

The utility model relates to an amortization structure admits air especially relates to an air compressor machine amortization structure and double-cylinder air compressor machine that admits air with general filter core.

Background

The oil-free air compressor is a main body in an air source device, is a device for converting mechanical energy of a prime power (usually a motor) into gas pressure energy, is an air pressure generating device for compressing air, and has a single-shaft double-cylinder structure design so that the gas flow of the compressor is twice of that of a single cylinder at a certain rated rotating speed.

The prior double-cylinder oil-free air compressor has the following problems: when double-cylinder oil-free air compressor machine breathed in, because the frequency of breathing in of air compressor machine is very fast, internals carries out the transmission and can produce great noise, and the noise can spread from the air inlet of cylinder cap, so current air compressor machine can install the muffler in air inlet department to reduce the noise that the air compressor machine produced when breathing in.

For example, the AC/DC air compressor with the publication number of CN210660514U, the silencer is arranged on two side surfaces of the cylinder cover (some of the silencer is also arranged at one end of the cylinder cover far away from the motor), the axis of the silencer is perpendicular to the axis of the motor and is arranged (or is parallel to the axis of the motor), and the silencer is large in size and can cause the silencer to excessively protrude out of the air compressor, so that the air compressor is easy to collide with other objects in the using process.

The existing silencer is generally a small-hole silencer, and comprises a small-hole silencer, wherein the small-hole silencer has low and medium frequency broadband silencing performance, small holes can improve the characteristics of silencing coefficient and the like, and the silencing effect is adjusted by controlling the size of an air inlet hole, so that the smaller the air inlet hole is, the better the silencing is, for example: no. CN 213144706U's air compressor machine air filter, including empty lid of straining, empty seat of straining, cushion and filter core, empty lid of straining forms a cavity after being connected with empty seat of straining, cushion and filter core are installed in the cavity, be provided with the several on the apron of empty lid of straining and wind the inlet port of central array, the one end of the relative empty lid of straining of empty seat is equipped with inserts the portion of closing, be equipped with the venthole with the cavity intercommunication in inserting the portion of closing, cushion one end is connected with the interior capping of empty lid of straining, the other end is connected with the filter core, the cushion side is provided with annular sound channel groove, one side that corresponds interior capping is provided with the slotted hole that communicates with annular sound channel groove entry. Air enters the cavity from the air inlet on the air filter cover and is discharged from the air outlet after passing through the filter element.

However, in order to filter air through the filter element, the silencer with the filter element mounted inside needs to have high sealing requirements between the filter element and the shell, a gap is easily generated between the filter element and the shell to affect the filtering effect, and if the air outlet of the silencer needs to be arranged on the side face, an additional fixing piece needs to be added inside the silencer to fix the filter element in the silencer, and a sufficient distance is reserved between the air outlet end of the filter element and the shell for ventilation, so that the silencer is lengthened, and the structure of the silencer is not compact enough.

SUMMERY OF THE UTILITY MODEL

Based on the not compact, high not enough of sealed requirement of above-mentioned structure, the utility model provides a knot is compact enough has air compressor machine amortization structure and double-cylinder air compressor machine that admits air of general filter core.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the air compressor air inlet silencing structure with the universal filter element is characterized by comprising a shell and the filter element, wherein the shell is provided with an inner cavity, the shell comprises a first half shell and a second half shell, the first half shell is provided with an installation cavity with a convex cavity wall, the installation cavity is provided with a cavity opening and is positioned in the inner cavity of the shell, the second half shell is provided with an annular convex edge for sealing and covering the cavity opening of the installation cavity, the outer wall of the filter element is provided with an outer annular edge, the filter element is inserted into the installation cavity, the outer annular edge on the filter element is tightly pressed on the edge of the cavity opening of the installation cavity by the annular convex edge, the annular convex edge is internally provided with a ventilation space, the annular convex edge is provided with a vent which is communicated with the ventilation space and the inner cavity of the shell, the shell is provided with an air suction port communicated with the inside of the installation cavity and an air outlet communicated with the inner cavity of the shell, and air entering from the air suction port enters the inner cavity of the shell from the air vent after passing through the filter element in the installation cavity.

The utility model discloses further preferred technical scheme does: the blow vent is for establishing the breach on the annular chimb, is equipped with a plurality of blow vents on the annular chimb, and a plurality of blow vents are with the central annular array of annular chimb.

The utility model discloses further preferred technical scheme does: be equipped with the back-off on the half shell of second, be equipped with on the half shell of first with back-off matched with draw-in groove, the back-off joint links together half shell of first and second in the draw-in groove.

The utility model discloses further preferred technical scheme does: the air suction port is arranged on the side surface of the shell.

The utility model discloses further preferred technical scheme does: the air suction port is detachably connected with an air suction pipe, and the air suction pipes with different calibers are selected to be connected to the air suction port.

The utility model discloses further preferred technical scheme does: the first half shell is provided with an air suction pipeline, the bottom of the mounting cavity is provided with an air inlet, the air inlet and the air suction port are both arranged on the air suction pipeline, and air entering from the air suction port enters the mounting cavity through the air suction pipeline.

The utility model discloses further preferred technical scheme does: and a reinforcing rib is arranged between the cavity wall of the mounting cavity and the first half shell.

The utility model discloses further preferred technical scheme does: the gas outlet is arranged on the side surface of the shell and is connected with a gas outlet pipe.

The utility model discloses further preferred technical scheme does: the number of the air suction ports is two.

Double-cylinder air compressor machine, its characterized in that, including two cylinders and foretell air compressor machine air inlet noise elimination structure who has general filter core, the casing is fixed between two cylinders, is equipped with two gas outlets on the casing and connects two cylinders respectively.

Compared with the prior art, the utility model has the advantages that be equipped with the installation cavity that is used for installing general filter core in the casing, outer ring limit through annular chimb on with the filter core tightly presses on the accent border of installation cavity, make the filter core fix in the installation cavity, outer ring limit tightly presses by annular chimb can improve the sealed between filter core and the installation cavity chamber wall on the accent border, and the space of ventilating has in the annular chimb, be equipped with the inner chamber of the space that the blow vent intercommunication was ventilated and casing on the annular chimb, the air that lets in the installation cavity gets into the space of ventilating after the filter core filters, let in the inner chamber of casing by the blow vent again, the blow vent is established on annular chimb, can effectively reduce the height of sound deadening structure, make the whole compacter of sound deadening structure.

The shell body is used for air intake and noise reduction through a structure of small air intake of an air intake port.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of the overall structure of an air compressor;

FIG. 2 is a disassembled view of the air intake silencing structure and the air compressor;

FIG. 3 is a first schematic view of the overall structure of the intake silencer structure;

FIG. 4 is a schematic view of the whole structure of the intake silencer structure;

FIG. 5 is an exploded view of the intake silencer structure;

FIG. 6 is a schematic view of the second half shell;

FIG. 7 is a schematic view of the first half shell;

FIG. 8 is a cut-away view of the intake silencer structure;

fig. 9 is a schematic view of the construction of the filter cartridge.

In the figure: 1. an air intake silencing structure; 2. a compression device; 3. a cylinder; 4. a cylinder cover; 5. a limiting hole; 6. an air inlet socket; 7. a housing; 8. an air intake duct; 9. an air suction port; 10. an air outlet pipe; 11. limiting and inserting the column; 12. a second half shell; 13. reversing; 14. a filter element; 15. a first half shell; 16. a card slot; 17. an air outlet; 18. an inner cavity; 19. installing a cavity; 20. an air inlet; 21. an annular flange; 22. a vent; 23. a plenum space; 24. an outer annular edge; 25. an air intake duct; 26. a filter element main body; 27. a vent passage; 28. filtering paper; 29. and (5) reinforcing ribs.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

As shown in fig. 1-9, the double-cylinder air compressor comprises an air storage tank, a compression device 2, an electromagnetic valve, a control switch and an air intake silencing structure 1, wherein two air cylinders 3 are arranged on the compression device 2, each air cylinder 3 comprises a cylinder cover 4, and the air intake silencing structure 1 is fixed between the two cylinder covers 4, so that the air intake silencing structure 1 can be prevented from colliding with other objects in the using process. Except for the air inlet silencing structure 1, other structures of the double-cylinder air compressor are the same as those of the existing air compressor on the market.

3-5, the air intake silencer structure 1 includes a casing 7 and a filter element 14, the casing 7 has an inner cavity 18, the casing 7 includes a first half-shell 15 and a second half-shell 12, the first half-shell 15 is connected to the second half-shell 12 to enclose the inner cavity 18. Preferably, the housing 7 is of square configuration.

Specifically, be equipped with a plurality of back-offs 13 on the second half shell 12, be equipped with on the first half shell 15 with a plurality of draw-in grooves 16 of back-offs 13 matched with, the back-offs 13 joint links together first half shell 15 and second half shell 12 in draw-in groove 16, and back-offs 13 have elasticity. The first half-shell 15 and the second half-shell 12 can also be fixed by screws.

As shown in fig. 7, the first half-shell 15 is provided with a mounting cavity 19 with a convex cavity wall, the mounting cavity 19 has an opening facing upward, the mounting cavity 19 is located in the inner cavity 18 of the shell 7, and preferably, the mounting cavity 19 is a circular cavity.

As shown in fig. 6, the second half-shell 12 is provided with an annular flange 21 for covering the opening of the mounting cavity 19.

As shown in fig. 9, the filter element 14 is an existing air filter element structure on the market, the filter element 14 includes a filter element main body 26, the filter element main body 26 is a cylindrical structure, a ventilation duct 27 is formed in the filter element main body 26 along the axial direction, the ventilation duct 27 penetrates through two ends of the filter element main body 26, filter paper 28 for filtering air is fixed in the ventilation duct 27, the lower end of the filter element main body 26 is an air inlet end, the upper end of the filter element main body 26 is an air outlet end, air enters the ventilation duct 27 from the bottom of the filter element main body 26 and is discharged from the top of the filter element main body 26 after being filtered by the filter paper 28, and a circle of outer annular edge 24 is formed on the outer wall of the upper end of the filter element main body 26. The filter element main body 26 is made of an elastic material, such as an elastic rubber material, an elastic silica gel material or an elastic plastic material, and the filter element main body 26 also has a certain hardness and is used for supporting the filter paper 28 inside.

As shown in fig. 8, when the filter element 14 is installed, the lower end of the filter element 14 is inserted into the installation cavity 19 from the cavity opening, so that the outer annular edge 24 abuts against the cavity opening edge of the installation cavity 19, when the second half shell 12 is connected to the first half shell 15, the annular flange 21 on the second half shell 12 presses the outer annular edge 24 against the cavity opening edge of the installation cavity 19, so that the filter element 14 is fixed in the installation cavity 19, and the outer annular edge 24 is pressed against the cavity opening edge of the installation cavity 19, so that the sealing performance between the filter element 14 and the cavity wall of the installation cavity 19 can be improved.

The annular flange 21 covers the opening of the mounting cavity 19, and in addition, the annular flange 21 protrudes from the inner wall of the second half-shell 12, so that a ventilation space 23 is formed in the annular flange 21, and a ventilation opening 22 is formed in the annular flange 21 to communicate the ventilation space 23 with the inner cavity 18 of the housing 7. The annular flange 21 serves both to fix the filter element 14 and to provide ventilation, and the provision of the vent opening 22 in the annular flange 21 makes the whole intake silencer structure 1 more compact.

Preferably, the annular flange 21 is circular, a plurality of air vents 22 are arranged on the annular flange 21, the air vents 22 are arranged in a central annular array of the annular flange 21, the air vents 22 are notches arranged on the annular flange 21, and the notches and the outer annular edge 24 enclose to form holes for ventilation.

The mounting cavity 19 is arranged in the center of the inner cavity 18 of the shell 7, and the inner cavity 18 of the shell 7 for air circulation is arranged around the mounting cavity 19.

In addition, a reinforcing rib 29 is arranged between the cavity wall of the mounting cavity 19 and the first half-shell 15 for improving the strength of the mounting cavity 19.

The housing 7 is provided with an air inlet 9 and an air outlet 17.

As shown in fig. 8, the air suction port 9 is communicated with the inside of the installation cavity 19, specifically, an air suction duct 25 is provided on the first half-shell 15, an air inlet 20 is provided at the bottom of the installation cavity 19, the air inlet 20 and the air suction port 9 are both provided on the air suction duct 25, and the air entering from the air suction port 9 enters the installation cavity 19 through the air suction duct 25.

The number of the air suction ports 9 is two, and the two air suction ports 9 are arranged on the side surface of the shell 7, so that hot air sucked into an air compressor below during air suction can be prevented, or large particles can be prevented from falling into the shell 7 from the air suction ports 9.

The air outlet 17 is communicated with an inner cavity 18 of the shell 7, the air outlet 17 is arranged on the side surface of the shell 7, the air outlet 17 is connected with an air outlet pipe 10, and the air outlet pipe 10 protrudes out of the side wall of the shell 7.

As shown in fig. 7, two air outlets 17 are arranged on the housing 7, the two air outlets 17 are symmetrically arranged on the left side and the right side of the housing 7, the two air outlets 17 are connected with air outlet pipes 10, the two air outlet pipes 10 are horizontally arranged, the cylinder covers 4 on the two sides are provided with air inlet sockets 6, and the two air outlet pipes 10 are respectively inserted into the air inlet sockets 6 on the two sides, so that the air inlet 20 is communicated with the air cylinders 3 on the two sides.

In addition, the left side and the right side of the shell 7 are symmetrically provided with limiting insertion columns 11, the limiting insertion columns 11 on the two sides are parallel to the air outlet pipe 10, the cylinder covers 4 on the two sides are provided with limiting holes 5, and the limiting insertion columns 11 on the two sides are respectively inserted into the limiting holes 5 on the two sides to limit the shell 7 to rotate around the air outlet pipe 10.

As shown in fig. 1 and fig. 2, during installation, the limiting insertion posts 11 and the air outlet pipes 10 may be inserted into the cylinder covers 4 on the two sides, and then the cylinder covers 4 on the two sides are fixedly connected with the cylinder bodies of the cylinders 3, and the cylinder covers 4 on the two sides fix the middle shell 7 through the limiting insertion posts 11 and the air outlet pipes 10, so that the air intake silencing structure 1 is fixed between the two cylinders 3.

The outlet duct 10 and the spacing inserted column 11 are both arranged on the first half shell 15, and when the air inlet silencing structure 1 is fixed between the two cylinders 3, the second half shell 12 can be detached from the first half shell 15, so that the inside of the shell 7 can be maintained or replaced conveniently.

When the air compressor is started, air is sucked in the air suction port 9, air entering the air suction port 9 enters the bottom of the mounting cavity 19 through the air suction pipeline 25, enters the filter element 14 from the air inlet end at the bottom of the filter element 14, is discharged from the air outlet end at the top of the filter element 14 after being filtered by the filter element 14, enters the ventilating space 23 in the annular convex edge 21, enters the inner cavity 18 of the shell 7 from the air vent 22 on the annular convex edge 21, and enters the air in the inner cavity 18 of the shell 7 from the air outlets 17 at two sides into the air cylinders 3 at two sides.

The mounting cavity 19 can be used for mounting the filter element 14 which is universal in the market, so that the later stage of a client is convenient to use, and the replacement is convenient.

In addition, the intake port 20 of the housing 7 can perform a sound deadening function due to the principle of the small-hole type muffler. And in order to adjust the silencing effect, the air suction pipe 8 can be detachably connected to the air suction port 9, one air suction pipe 8 with different calibers is selected to be connected to the air suction port 9, and the silencing effect of the air inlet silencing structure 1 is adjusted by changing the calibers of the air suction pipes 8.

Preferably, the suction pipe 8 is inserted into the suction port 9 and is tightly fitted with the suction port 9.

In addition, when air enters the annular flange 21 and is discharged from the air vents 22 on the annular flange 21, the air can also have a silencing effect after multiple collisions.

It is right above the utility model provides an air compressor machine that has general filter core noise cancelling structure and double-cylinder air compressor machine that admits air introduces, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model relates to a core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The air compressor air inlet silencing structure with the universal filter element is characterized by comprising a shell and the filter element, wherein the shell is provided with an inner cavity, the shell comprises a first half shell and a second half shell, the first half shell is provided with an installation cavity with a convex cavity wall, the installation cavity is provided with a cavity opening and is positioned in the inner cavity of the shell, the second half shell is provided with an annular convex edge for sealing and covering the cavity opening of the installation cavity, the outer wall of the filter element is provided with an outer annular edge, the filter element is inserted into the installation cavity, the outer annular edge on the filter element is tightly pressed on the edge of the cavity opening of the installation cavity by the annular convex edge, the annular convex edge is internally provided with a ventilation space, the annular convex edge is provided with a vent which is communicated with the ventilation space and the inner cavity of the shell, the shell is provided with an air suction port communicated with the inside of the installation cavity and an air outlet communicated with the inner cavity of the shell, and air entering from the air suction port enters the inner cavity of the shell from the air vent after passing through the filter element in the installation cavity.

2. The air compressor air intake silencing structure with the universal filter element as claimed in claim 1, wherein the air vents are notches formed in the annular flange, and a plurality of air vents are formed in the annular flange and are arrayed in a central ring of the annular flange.

3. The air compressor air intake noise reduction structure with the general filter element as claimed in claim 1, wherein the second half shell is provided with an inverted buckle, the first half shell is provided with a clamping groove matched with the inverted buckle, and the inverted buckle is clamped in the clamping groove to connect the first half shell and the second half shell together.

4. The air compressor air intake silencer structure with the universal filter element as claimed in claim 1, wherein the air suction opening is provided at a side of the casing.

5. The air compressor air inlet silencing structure with the universal filter element as claimed in claim 1 or 4, wherein the air suction port is detachably connected with an air suction pipe, and the air suction pipes with different calibers are alternatively connected with the air suction port.

6. The air compressor air inlet silencing structure with the universal filter element as claimed in claim 1, wherein the first half shell is provided with an air suction pipe, the bottom of the installation cavity is provided with an air inlet, the air inlet and the air suction port are both arranged on the air suction pipe, and air entering from the air suction port enters the installation cavity through the air suction pipe.

7. The air compressor air intake silencing structure with the general filter element as claimed in claim 1, wherein a reinforcing rib is provided between the cavity wall of the mounting cavity and the first half shell.

8. The air compressor air inlet silencing structure with the universal filter element as claimed in claim 1, wherein the air outlet is arranged on the side surface of the casing, and the air outlet pipe is connected to the air outlet.

9. The air compressor air intake silencer structure with the universal filter element as claimed in claim 1, wherein the number of the air suction ports is two.

10. The double-cylinder air compressor is characterized by comprising two cylinders and the air compressor air inlet silencing structure with the universal filter element as recited in any one of claims 1 to 9, wherein the shell is fixed between the two cylinders, and two air outlets are arranged on the shell and are respectively connected with the two cylinders.