CN213981270U

CN213981270U - Silencer containing check valve

Info

Publication number: CN213981270U
Application number: CN202022713079.6U
Authority: CN
Inventors: 徐朋帅; 牛彦齐; 俞力
Original assignee: Zhejiang Shangfeng High Tech Special Wind Industry Co ltd
Current assignee: Zhejiang Shangfeng High Tech Special Wind Industry Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-08-17
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a muffler containing a check valve, which comprises an outer barrel component, an inner barrel component and a check valve component, wherein the outer barrel component comprises an outer barrel body, a first noise elimination body arranged on the outer barrel body and a first cover plate arranged at the top of the outer barrel body; the inner barrel assembly comprises an inner barrel body arranged in the outer barrel body, a second noise elimination body arranged on the inner barrel body and a second cover plate arranged at the top of the inner barrel body, a first cavity matched with the first noise elimination body is formed in the side wall of the outer barrel body, a second cavity matched with the second noise elimination body is formed in the side wall of the inner barrel body, and the check valve assembly is arranged above the inner barrel body; the check valve component and the silencer inner cylinder component are arranged in the silencer outer cylinder component, the overall noise reduction performance of the silencer is improved on the premise that the height of the silencer outer cylinder is not increased, and the purposes of improving the performance of the silencer, reducing the cost, reducing the installation difficulty and improving the economic benefit are achieved.

Description

Silencer containing check valve

Technical Field

The utility model belongs to the technical field of the silencer, especially, relate to a contain check valve formula silencer.

Background

The silencer prevents or reduces the outward transmission of noise by controlling aerodynamic performance noise to become one of common devices in a noise control system, and is widely applied to various fields of electric power, mines, machinery, metallurgy, chemical engineering and the like. The harm of noise is multifaceted and serious, especially the aerodynamic performance noise at the inlet and outlet parts of a fan, and the noise is taken as one of main objects for treating noise pollution by the industrial department of China at present. The performance of the silencer is directly related to the degree of noise pollution of people.

The roof fan is installed in the roof and is used for the equipment of taking a breath of airing exhaust, for preventing to shut down the back air refluence, adds the equipment check valve in the silencer upper end that links to each other with the fan more in the engineering, and this can not avoid increasing whole roof fan's overall height, increases the cost simultaneously, increases the installation degree of difficulty to do not play the effect of making an uproar.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a contain check valve formula silencer.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a muffler containing a check valve comprises an outer barrel assembly, an inner barrel assembly and a check valve assembly, wherein the outer barrel assembly comprises an outer barrel body, a first noise elimination body arranged on the outer barrel body and a first cover plate arranged at the top of the outer barrel body; the inner barrel assembly comprises an inner barrel body arranged in the outer barrel body, a second noise elimination body arranged on the inner barrel body and a second cover plate arranged at the top of the inner barrel body, a first cavity matched with the first noise elimination body is formed in the side wall of the outer barrel body, a second cavity matched with the second noise elimination body is formed in the side wall of the inner barrel body, and the check valve assembly is arranged above the inner barrel body; the side wall of the outer barrel body is provided with a mounting groove, the bottom of the mounting groove is provided with a second through hole, a screw is arranged in the mounting groove, the top of the screw is provided with a supporting frame, the side wall of the supporting frame is provided with a sixth sliding block, and the side wall of the mounting groove is provided with a seventh sliding groove matched with the sixth sliding block; a connecting disc is arranged on the supporting frame and can be rotatably connected to the supporting frame, a fourth driving wheel is arranged at the top of the connecting disc, a second transmission shaft is arranged at the bottom of the connecting disc, and a second transmission groove matched with the second transmission shaft is formed in the top of the screw; and a fifth connecting ring is arranged on the side wall of the outer barrel body, a transmission ring is arranged on the fifth connecting ring, a transmission roller matched with the transmission ring is arranged on the side wall of the outer barrel body, and the transmission roller is in transmission fit with the fourth transmission wheel.

An opening is formed in the side wall of the outer barrel, a sixth movable groove is formed in the top of the opening, a sealing door matched with the opening is arranged in the sixth movable groove, and a handle is arranged on the sealing door; a first bearing plate and a second bearing plate which are matched with the opening are arranged in the outer barrel body, a third sliding block is arranged at the bottom of the second bearing plate, and a third sliding groove which is matched with the third sliding block is arranged at the bottom of the first bearing plate; a through groove is formed in the side wall of the outer barrel body, a first connecting plate is arranged in the through groove, a second connecting plate is arranged on the first connecting plate, and a third connecting groove matched with the second connecting plate is formed in the second bearing plate; and a fourth sliding groove is formed in the side wall of the through groove, and a fourth sliding block matched with the fourth sliding groove is arranged on the side wall of the first connecting plate.

A seventh movable cavity is formed in the first connecting plate, a third connecting plate penetrates through the seventh movable cavity, a second through cavity is formed in the third connecting plate, a transmission rod penetrates through the second through cavity, a convex block is arranged on the side wall of one end of the transmission rod, and a seventh movable groove matched with the convex block is formed in the inner wall of the seventh movable cavity; the seventh movable cavity extends to the second connecting plate, an eighth movable cavity is arranged on the side wall of the seventh movable cavity, a movable rod is arranged in the eighth movable cavity, a second limiting block is arranged on the movable rod, a limiting spring is arranged at one end of the movable rod, a ninth movable cavity is arranged at one end of the seventh movable cavity, a third driving wheel is arranged in the ninth movable cavity, a first driving shaft is arranged on the third driving wheel, and a first driving groove matched with the first driving shaft is arranged on the driving rod; a third connecting rope is arranged at one end of the movable rod and is wound on a third driving wheel; an eighth movable groove matched with the bump is further formed in the inner wall of the seventh movable cavity; a second groove is formed in the bottom of the fourth sliding groove; and a fifth sliding block is arranged at the upper bottom of the third connecting plate, and a fifth sliding groove matched with the fifth sliding block is arranged on the inner wall of the seventh movable cavity.

The connecting frame is arranged on the side wall of the through groove, a sixth sliding groove is formed in the inner wall of the connecting frame, a first baffle is arranged in the sixth sliding groove, and a second baffle is arranged at the top of the first baffle.

The inner wall of the outer barrel body is provided with a supporting block, the check valve assembly comprises a mounting frame arranged on the supporting block and a first turning plate arranged on the mounting frame, a first notch is formed in the first turning plate, a second connecting ring is arranged on the first turning plate, a limiting rod matched with the second connecting ring is arranged on the first turning plate, a first connecting rope is arranged on the second connecting ring, the bottom end of the first connecting rope is provided with a first scraper matched with the inner barrel body, and the first scraper is of a circular ring structure.

A second movable ring is arranged in the outer barrel body, a third connecting ring is arranged on the side wall of the second movable ring, a second movable groove matched with the third connecting ring is arranged on the inner wall of the outer barrel body, and a plurality of fan blades are arranged on the inner wall of the second movable ring; an annular groove is formed in the side wall of the inner barrel body, a fourth connecting ring is arranged in the annular groove, a fourth connecting rod is arranged on the fourth connecting ring, a second scraper is arranged on the fourth connecting rod, and the second scraper is of an arc-shaped structure; when the second movable ring rotates, the second scraper rotates together with the second movable ring.

The utility model has the advantages of it is following: the silencer outer barrel component is arranged in the check valve component and the silencer inner barrel component in the silencer outer barrel component, the integral noise reduction performance of the silencer is improved on the premise that the height of the silencer outer barrel is not increased, meanwhile, the check valve with the air backflow prevention function is additionally arranged, and the purposes of improving the performance of the silencer, reducing the cost and reducing the installation difficulty and improving the economic benefit are achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a right side view of the present invention.

Fig. 3 is a cross-sectional view taken along line E-E of fig. 2.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is an enlarged view of fig. 4 at B.

Fig. 6 is an enlarged view of fig. 4 at C.

Fig. 7 is a cross-sectional view taken along F-F in fig. 2.

Fig. 8 is an enlarged view of fig. 7 at D.

Fig. 9 is a cross-sectional view taken along G-G in fig. 2.

Fig. 10 is an enlarged view of fig. 9 at E.

Fig. 11 is an enlarged view of fig. 10 at F.

Fig. 12 is a cross-sectional view taken along line I-I in fig. 2.

Fig. 13 is an enlarged view at G in fig. 12.

Fig. 14 is a cross-sectional view taken along line K-K in fig. 2.

Fig. 15 is an enlarged view of fig. 14 at H.

Fig. 16 is a cross-sectional view taken along J-J in fig. 2.

Fig. 17 is an enlarged view at J in fig. 16.

Fig. 18 is an enlarged view at K in fig. 17.

Fig. 19 is a front view of the present invention.

Fig. 20 is a cross-sectional view taken along a-a in fig. 19.

Fig. 21 is an enlarged view at L in fig. 20.

Fig. 22 is a cross-sectional view taken along line B-B of fig. 19.

Fig. 23 is an enlarged view of fig. 22 at M.

Fig. 24 is a cross-sectional view taken along line D-D of fig. 19.

Fig. 25 is an enlarged view at P in fig. 24.

Fig. 26 is an enlarged view at Q in fig. 24.

Fig. 27 is an enlarged view of fig. 25 at R.

Detailed Description

As shown in fig. 1 to 27, a muffler with a check valve comprises an outer barrel assembly, an inner barrel assembly and a check valve assembly, wherein the outer barrel assembly comprises an outer barrel body 1, a first muffler body 11 arranged on the outer barrel body 1 and a first cover plate 12 arranged at the top of the outer barrel body 1; the inner barrel assembly comprises an inner barrel body 2 arranged in the outer barrel body 1, a second noise elimination body 21 arranged on the inner barrel body 2 and a second cover plate 22 arranged at the top of the inner barrel body 2, the first cover plate is connected to the top of the outer barrel body in a threaded mode, the second cover plate is connected to the top of the inner barrel body in a threaded mode, a first cavity matched with the first noise elimination body 11 is arranged on the side wall of the outer barrel body 1, a second cavity matched with the second noise elimination body 21 is arranged on the side wall of the inner barrel body 2, the check valve assembly is arranged above the inner barrel body 2, and a first connecting rod 23 used for fixing the inner barrel body 2 in the outer barrel body is arranged on the side wall of the inner barrel body 2; the check valve component and the silencer inner cylinder component are arranged inside the silencer outer cylinder component, the integral noise reduction performance of the silencer is improved on the premise that the height of the silencer outer cylinder is not increased, meanwhile, the check valve with the function of preventing air from flowing backwards is additionally arranged, and the purposes of improving the performance of the silencer, reducing the cost, reducing the installation difficulty and improving the economic benefit are achieved; the inner barrel body is fixed in the outer barrel body through the first connecting rod, the connecting effect of the inner barrel body and the outer barrel body is guaranteed, the strength of the whole structure of the silencer can be improved, and the service life of the silencer is prolonged.

A first connecting block 18 is arranged on the inner wall of the outer barrel body 1, a first connecting groove is formed in the first connecting block 18, a second connecting block 231 matched with the first connecting groove is arranged on the first connecting rod 23, a first through cavity is formed in the second connecting block 231, a connecting hole corresponding to the first through cavity is formed in the first connecting groove, and a first threaded rod 24 penetrates through the first through cavity; when the staving in the installation, put into outer staving with interior staving, the second connecting block is embedded into first connecting groove, and first logical chamber is in the connecting hole top, rotates the threaded rod, and the threaded rod bottom is shifted over to in the connecting hole, fixes the second connecting block in first connecting groove under the threaded rod effect, does fixedly to interior staving.

The inner wall of the outer barrel body 1 is provided with a supporting block 140, the check valve assembly comprises an installation frame 3 arranged on the supporting block 140 and a first turning plate 31 rotatably connected to the installation frame 3, the installation frame is connected with the inner wall of the outer barrel body through threads, a first notch is arranged on the first turning plate 31, a second connecting ring 32 is arranged on the first turning plate 31, a limiting rod 311 matched with the second connecting ring 32 is arranged on the first turning plate 31, a first connecting rope 321 is arranged on the second connecting ring 32, a first scraper 33 matched with the inner barrel body 2 is arranged at the bottom end of the first connecting rope 321, and the first scraper 33 is of a circular ring structure; when the roof fan works, indoor air flows outwards under the action of the fan, the airflow pushes the bottom first turning plate to turn upwards, and the outer barrel body is opened to enable the airflow to flow out normally; when the fan stops working, the turning plate naturally turns down under the action of gravity, the turning plate is lapped on the mounting frame, and the turning plate seals the outer barrel body to prevent outside air from flowing backwards into a room; when the first turning plate turns upwards, the first turning plate turns to push the second connecting ring to move upwards, the second connecting ring pulls the first connecting rope to move upwards, the first connecting rope drives the first scraper to move upwards, the first scraper moves along the inner wall of the inner barrel body, and dust on the inner wall of the inner barrel body is scraped under the action of the first scraper; when the fan stops working, the first turning plate turns downwards, the second connecting plate moves downwards, the first scraper moves downwards along with the second connecting ring, the first scraper moves along the inner wall of the inner barrel body and cleans the inner wall of the inner barrel body again, and under the action of the first scraper, dust in the inner barrel body can be effectively scraped, so that the influence of the dust on the silencing effect of the silencer is reduced; the inner wall of the inner barrel body can be automatically cleaned through the opening and closing action of the first turning plate, manual maintenance is not needed, and the silencer is more convenient to use; under the limit ring setting, it makes the second go-between directly fall into in the outer barrel to avoid first turning over the board to open too big back, guarantees that the second go-between is in first turning over the board top always to utilize first scraper blade to do the clearance to inner wall of inner barrel body.

A second movable ring 19 is arranged in the outer barrel body 1, a third connecting ring 191 is arranged on the side wall of the second movable ring 19, a second movable groove matched with the third connecting ring 191 is arranged on the inner wall of the outer barrel body 1, and a plurality of fan blades 196 are arranged on the inner wall of the second movable ring 19; an annular groove is formed in the side wall of the inner barrel body 2, a fourth connecting ring 26 is arranged in the annular groove, a fourth connecting rod 261 is arranged on the fourth connecting ring 26, a second scraper 262 is arranged on the fourth connecting rod 261, and the second scraper 262 is of an arc-shaped structure; when the second movable ring 19 rotates, the second scraper 262 rotates together with the second movable ring 19; after the inner barrel body is fixed in the outer barrel body, the second scraper blade is attached to the inner wall of the outer barrel body, when the fan works, airflow passes through the fan blades, the fan blades rotate under the blowing of the airflow, the fan blades drive the second movable ring to rotate, the second scraper blade is driven to rotate when the second movable ring rotates, the second scraper blade is attached to the inner wall of the outer barrel body to rotate, the second scraper blade plays a role in cleaning the inner wall of the outer barrel body, dust on the inner wall of the inner barrel body is hung down, and the influence of the dust on the noise reduction effect of the outer barrel body is avoided; under the setting of flabellum, second loose ring sum second scraper blade, make the second scraper blade can rotate automatically at the fan during operation, accomplish the automatic clearance to outer staving inner wall, guarantee the noise cancelling effect of outer staving, promote the use reliability of muffler.

In order to ensure the cleaning effect of the first scraper and the second scraper on the inner barrel body and the outer barrel body, bristles or cloth which is easy to generate static electricity can be arranged on the side walls of the first scraper and the second scraper so as to clean the inner walls of the inner barrel body and the outer barrel body.

A third movable groove is formed in the second movable ring 19, a fourth movable groove communicated with the third movable groove is formed in one side of the third movable groove, a third supporting spring 194 is arranged in the third movable groove, a fifth connecting rod 192 is arranged on the third supporting spring 194, a plurality of second connecting grooves matched with the fifth connecting rod 192 are formed in the bottom of the second scraper 262, a movable plate 193 is rotatably connected in the fourth movable groove, a second connecting rope 195 is arranged on the movable plate 193, and one end of the second connecting rope 195 is fixedly connected to the fifth connecting rod 192; a second push rod 1401 is arranged on the supporting block 140, and when the second scraper 262 rotates, the second push rod 1401 moves upwards; after the inner barrel body is arranged in the outer barrel body, the second scraper abuts against the inner wall of the outer barrel body, the fifth connecting rod is inserted into the second connecting groove, the second scraper and the second movable ring form connecting fit, and the second movable ring drives the second scraper to rotate together when rotating to provide power for the movement of the second scraper; when the fifth connecting rod moves to the position below the first connecting block or the second connecting rod, the movable plate is in contact with the first connecting block or the second connecting rod before the fifth connecting rod, the movable plate overturns after contacting with a conflict object, the movable plate rotates to pull the second connecting rope, the second connecting rope pulls the fifth connecting rod to move downwards, the fifth connecting rod enters the third movable groove, the fifth connecting rod is separated from the second connecting groove, and the fifth connecting rod descends to the position below the first connecting block or the second connecting rod, so that the fifth connecting rod normally passes through the position below the first connecting block or the second connecting rod; when the movable plate is moved out of the bottom of the first connecting block or the bottom of the second connecting rod, the third supporting spring pushes the fifth connecting rod to generate a trend of moving upwards, and when the fifth connecting rod is moved out of the bottom of the first connecting block or the bottom of the second connecting rod, the fifth connecting rod moves upwards and is inserted into another second connecting groove in the bottom of the second scraper plate, so that the second movable ring and the second scraper plate are connected and matched again, power is continuously provided for the second scraper plate, and the second scraper plate can continuously rotate; even if the fifth connecting rod is not inserted into the second connecting groove, the fifth connecting rod can still push the second scraper to rotate when rotating until the movable plate moves to one side of the first connecting block or the second connecting rod, and then the position of the fifth connecting rod is adjusted to enable the fifth connecting rod to be inserted into the second connecting groove; the second movable ring drives the second push rod to extend out when rotating, the second push rod pushes the first turning plate to move upwards, the first turning plate is enabled to turn upwards under the combined action of air flow and the second push rod, the first turning plate is enabled to be normally opened, and air flow in a room can be normally discharged.

A fifth movable groove is formed in the supporting block 140, a fifth movable cavity communicated with the fifth movable groove is formed in the bottom of the fifth movable groove, a sixth movable cavity communicated with the fifth movable cavity is arranged below the fifth movable cavity, the second push rod 1401 is arranged in the fifth movable groove, a second driving wheel 1402 matched with the second push rod 1401 is arranged in the fifth movable groove, a rotating roller 1403 is arranged in the fifth movable groove, and a driving belt 1404 in driving fit with the second driving wheel 1402 is wound on the rotating roller 1403; a transmission block 1405 matched with the transmission belt 1404 is arranged in the sixth movable cavity, the transmission block 1405 penetrates through the sixth movable cavity, a fourth support spring 1408 is arranged on the side wall of the transmission block 1405, a connecting pipe 1406 is arranged on the inner wall of the sixth movable cavity, a sixth connecting rod 1407 is arranged in the connecting pipe 1406 in a penetrating manner, the sixth connecting rod is fixedly connected to the transmission block, a first limiting block 14071 is arranged at one end of the sixth connecting rod 1407, a plurality of first through holes 14072 are arranged on the first limiting block 14071, a plurality of second turning plates are arranged in the first through holes 14072, and second notches are arranged on the second turning plates; when the second movable ring drives the second scraper to rotate, the second scraper is contacted with the bottom of the transmission block, the second scraper drives the transmission block to move in the sixth movable cavity, the transmission block drives the transmission belt to rotate, the transmission belt drives the second transmission wheel to rotate, the second transmission wheel drives the second push rod to move upwards, and the second push rod pushes the first turning plate to turn over so that air flow can normally flow out; when the transmission block moves to one end of the sixth movable cavity, the transmission block cannot move continuously, the second scraper blade is directly moved away from the bottom of the transmission block, the fourth supporting spring pushes the transmission block to move back, the transmission block drives the sixth connecting rod to move, and the first limiting block moves in the connecting pipe; when the first limiting block moves towards the bottom end of the connecting pipe, the second turning plate is turned over and opened, and the airflow at one end of the connecting pipe rapidly flows to the other end of the connecting pipe, so that the transmission block normally moves; when first stopper moves toward the connecting pipe top, the second turns over the unable rotation of board, the air current of first stopper both sides can only be through the second breach department flow on the second turns over the board, the air current flow volume reduces, thereby play the deceleration effect to the removal of drive block, the drive block is when removing sixth activity chamber middle part position, next second scraper blade contacts with drive block bottom once more, promote the drive block and move toward fourth supporting spring direction once more, thereby guarantee that the second push rod is in the raising state that lasts, guarantee that first turning over the board is in the open mode at fan during operation, guarantee the normal circulation of air current.

An opening 13 is formed in the side wall of the outer barrel body 1, a sixth movable groove is formed in the top of the opening 13, a sealing door 14 matched with the opening is arranged in the sixth movable groove, and a handle 141 is arranged on the sealing door 14; a first bearing plate 4 and a second bearing plate 41 which are matched with the opening 13 are arranged in the outer barrel body 1, a third sliding block is arranged at the bottom of the second bearing plate 41, and a third sliding groove matched with the third sliding block is arranged at the bottom of the first bearing plate 4; a through groove is formed in the side wall of the outer barrel body 1, a first connecting plate 17 is arranged in the through groove, a second connecting plate 176 is arranged on the first connecting plate 17, and a third connecting groove matched with the second connecting plate 176 is arranged on the second bearing plate 41; a fourth sliding groove 150 is formed in the side wall of the through groove, and a fourth sliding block 175 matched with the fourth sliding groove 150 is arranged on the side wall of the first connecting plate 17; the bottom of the outer barrel body is provided with a bottom plate, the bottom plate is provided with a plurality of vent holes, the first bearing plate and the second bearing plate are both of porous plate structures, the number of the second bearing plates is two, and when the first bearing plate and the two second bearing plates are tiled, the first bearing plate and the second bearing plate form a disc shape with the same section as that of the outer barrel body; when the first bearing plate and the second bearing plate are arranged, the two second bearing plates are stacked on the first bearing plate, the third sliding block is positioned in the third sliding chute, the sealing door is opened, the first bearing plate and the second bearing plate are stuffed into the outer barrel body from the opening, after one end of the first bearing plate is propped against the inner wall of the outer barrel body, the first connecting plate is pushed to enable the second connecting plate to be embedded into the third connecting groove, the first connecting plate is pulled outwards, the first connecting plate drives the second bearing plate to move, the second bearing plate is moved down from the first bearing plate, the two second bearing plates are respectively arranged at two sides of the first bearing plate, the first bearing plate and the second bearing plate are flatly paved on the bottom plate, dust cleaned by the first scraper blade and the second scraper blade falls on the first bearing plate and the second bearing plate, the first bearing plate and the second bearing plate are used for collecting the dust, and the first bearing plate and the second bearing plate can be regularly taken out, so as to clean the dust in the outer barrel body; through the first mode of accepting board and second and accepting the board and stacking, can effectively reduce the opening bore, make outer staving change to be connected on the roof fan.

A seventh movable cavity is formed in the first connecting plate, a third connecting plate 171 penetrates through the seventh movable cavity, a second through cavity is formed in the third connecting plate, a transmission rod 172 penetrates through the second through cavity, a bump 1721 is arranged on the side wall of one end of the transmission rod, and a seventh movable groove 1761 matched with the bump is formed in the inner wall of the seventh movable cavity; the seventh movable cavity extends to the second connecting plate, an eighth movable cavity is arranged on the side wall of the seventh movable cavity, a movable rod 1771 is arranged in the eighth movable cavity, a second limiting block 177 is arranged on the movable rod, a limiting spring 1772 is arranged at one end of the movable rod, a ninth movable cavity is arranged at one end of the seventh movable cavity, a third driving wheel 173 is arranged in the ninth movable cavity, the third driving wheel has larger friction with the inner wall of the ninth movable cavity, a first driving shaft 1731 is arranged on the third driving wheel, and a first driving groove matched with the first driving shaft is arranged on the driving rod; one end of the movable rod is provided with a third connecting rope which is wound on a third driving wheel; an eighth movable groove 174 matched with the bump is further formed in the inner wall of the seventh movable cavity; a second groove is formed in the bottom of the fourth sliding groove; a fifth sliding block is arranged at the upper bottom of the third connecting plate, and a fifth sliding groove matched with the fifth sliding block is arranged on the inner wall of the seventh movable cavity; before the first bearing plate and the second bearing plate are placed in the outer barrel, the first connecting plate is pulled out of the through groove, so that the second connecting plate is prevented from blocking the installation of the first bearing plate and the second bearing plate; after the first bearing plate and the second bearing plate are placed into the outer barrel body, the first connecting plate is pushed into the outer barrel body, the first connecting plate pushes the second connecting plate to move into the outer barrel body, the second connecting plate is inserted into a third connecting groove, a transmission rod is rotated, the first transmission shaft is embedded into the first transmission groove at the moment, the transmission rod drives a third transmission wheel to rotate, the third transmission wheel rotates to pull a third connecting rope, one end of a movable rod is pulled by the third connecting rope to rotate, the movable rod rotates to push a second limiting block to extend out of an eighth movable cavity, the second limiting block abuts against the inner wall of the third connecting groove, the first connecting plate is pulled outwards, the first connecting plate drives the second bearing plate to move towards one side of the first bearing plate, the second bearing plate falls down from the first bearing plate, and the first bearing plate and the second bearing plate are flatly paved on a bottom plate; when the fourth sliding block moves, the first connecting plate is pushed downwards above the second groove, and the fourth sliding block enters the second groove, so that the second bearing plate and the first bearing plate are positioned on the same plane, and dust is collected conveniently; when the first bearing plate and the second bearing plate are disassembled, the third connecting plate is pulled outwards, the third driving wheel cannot rotate due to a limiting spring, the fifth sliding block moves to one end of the fifth sliding groove, the driving rod is rotated, the lug rotates along with the driving rod to enter the eighth movable groove, the third connecting plate is fixed on the current position under the matching of the lug and the eighth movable groove, the first connecting plate is pushed to the top of the through groove, the second bearing plate moves to the top of the first bearing plate, the second bearing plate is pushed to the direction of the first bearing plate, the second bearing plate is pushed to the first bearing plate, the driving rod is rotated to rotate the lug out of the eighth movable groove, the third connecting plate is pushed to the seventh movable cavity, when the third connecting plate moves to one end of the seventh movable cavity, the first driving shaft is embedded into the first driving groove, the driving rod drives the first driving shaft to rotate, and the third driving wheel rotates reversely, the third is connected the rope and is rolled out from the third drive wheel, and spacing spring pulling second stopper enters into the eighth activity intracavity, toward the first connecting plate of outer pulling, and the second connecting plate is deviate from in the third connecting groove, opens sealing door, can directly accept first board and the second and accept the board and take out from the opening part with first, reduces the first dismantlement degree of difficulty of accepting board and second and accepting the board.

Be equipped with the carriage 16 on leading to the groove lateral wall, be equipped with the sixth spout on the carriage inner wall, be equipped with first baffle 161 in the sixth spout, first baffle top is equipped with second baffle 162, and first baffle and second baffle play sealed effect to leading to the groove, avoid the muffler to touch first connecting plate when ordinary use.

The side wall of the outer barrel body is provided with a mounting groove, the bottom of the mounting groove is provided with a second through hole, a screw 110 is arranged in the mounting groove, the top of the screw is provided with a supporting frame 130, the side wall of the supporting frame is provided with a sixth sliding block, and the side wall of the mounting groove is provided with a seventh sliding groove 160 matched with the sixth sliding block; a connecting disc 120 is arranged on the supporting frame and can be rotatably connected to the supporting frame, a fourth driving wheel 1202 is arranged at the top of the connecting disc, a second transmission shaft 1201 is arranged at the bottom of the connecting disc, and a second transmission groove matched with the second transmission shaft is arranged at the top of the screw; a fifth connecting ring 15 is arranged on the side wall of the outer barrel body, a transmission ring 151 is arranged on the fifth connecting ring, a transmission roller 152 matched with the transmission ring is arranged on the side wall of the outer barrel body, and the transmission roller is in transmission fit with the fourth transmission wheel; when the silencer is installed, the outer barrel body is arranged on a roof fan shell, the screw is aligned with a threaded hole in a fan, the transmission ring is rotated, the transmission ring drives the transmission roller to rotate, the transmission roller drives the screw to rotate, the screw rotates into the threaded hole of the fan, the outer barrel body is fixed on the fan shell, and the silencer is installed; through the setting of driving ring and driving roller, only need rotate the dismouting operation that the muffler can be accomplished to the driving ring, the reduction of great degree the installation degree of difficulty of muffler simplifies muffler installation steps.

The attached drawing of this application is the schematic diagram only, and its specific size uses actual demand as the standard, guarantees that each part can normally work.

Claims

1. A muffler containing a check valve, characterized in that: the anti-noise water heater comprises an outer barrel assembly, an inner barrel assembly and a check valve assembly, wherein the outer barrel assembly comprises an outer barrel body (1), a first noise elimination body (11) arranged on the outer barrel body (1) and a first cover plate (12) arranged at the top of the outer barrel body (1); the inner barrel assembly comprises an inner barrel body (2) arranged in the outer barrel body (1), a second noise elimination body (21) arranged on the inner barrel body (2) and a second cover plate (22) arranged at the top of the inner barrel body (2), a first cavity matched with the first noise elimination body (11) is arranged on the side wall of the outer barrel body (1), a second cavity matched with the second noise elimination body (21) is arranged on the side wall of the inner barrel body (2), and the check valve assembly is arranged above the inner barrel body (2); the side wall of the outer barrel body (1) is provided with a mounting groove, the bottom of the mounting groove is provided with a second through hole, a screw (110) is arranged in the mounting groove, the top of the screw (110) is provided with a supporting frame (130), the side wall of the supporting frame (130) is provided with a sixth sliding block, and the side wall of the mounting groove is provided with a seventh sliding groove (160) matched with the sixth sliding block; a connecting disc (120) is arranged on the supporting frame (130), the connecting disc (120) is rotatably connected to the supporting frame (130), a fourth driving wheel (1202) is arranged at the top of the connecting disc (120), a second transmission shaft (1201) is arranged at the bottom of the connecting disc (120), and a second transmission groove matched with the second transmission shaft (1201) is arranged at the top of the screw (110); the side wall of the outer barrel body (1) is provided with a fifth connecting ring (15), the fifth connecting ring (15) is provided with a transmission ring (151), the side wall of the outer barrel body (1) is provided with a transmission roller (152) matched with the transmission ring (151), and the transmission roller (152) is in transmission fit with the fourth transmission wheel (1202).

2. A muffler containing a check valve according to claim 1, wherein: an opening (13) is formed in the side wall of the outer barrel body (1), a sixth movable groove is formed in the top of the opening (13), a sealing door (14) matched with the opening is arranged in the sixth movable groove, and a handle (141) is arranged on the sealing door (14); a first bearing plate (4) and a second bearing plate (41) which are matched with the opening (13) are arranged in the outer barrel body (1), a third sliding block is arranged at the bottom of the second bearing plate (41), and a third sliding groove which is matched with the third sliding block is arranged at the bottom of the first bearing plate (4); a through groove is formed in the side wall of the outer barrel body (1), a first connecting plate (17) is arranged in the through groove, a second connecting plate (176) is arranged on the first connecting plate (17), and a third connecting groove matched with the second connecting plate (176) is formed in the second bearing plate (41); and a fourth sliding groove (150) is formed in the side wall of the through groove, and a fourth sliding block (175) matched with the fourth sliding groove (150) is arranged on the side wall of the first connecting plate (17).

3. A muffler containing a check valve according to claim 2, wherein: a seventh movable cavity is formed in the first connecting plate (17), a third connecting plate (171) penetrates through the seventh movable cavity, a second through cavity is formed in the third connecting plate (171), a transmission rod (172) penetrates through the second through cavity, a bump (1721) is arranged on the side wall of one end of the transmission rod (172), and a seventh movable groove (1761) matched with the bump (1721) is formed in the inner wall of the seventh movable cavity; the seventh movable cavity extends to the second connecting plate (176), an eighth movable cavity is arranged on the side wall of the seventh movable cavity, a movable rod (1771) is arranged in the eighth movable cavity, a second limiting block (177) is arranged on the movable rod, a limiting spring (1772) is arranged at one end of the movable rod (1771), a ninth movable cavity is arranged at one end of the seventh movable cavity, a third driving wheel (173) is arranged in the ninth movable cavity, a first driving shaft (1731) is arranged on the third driving wheel (173), and a first driving groove matched with the first driving shaft (1731) is arranged on the driving rod (172); one end of the movable rod (1771) is provided with a third connecting rope, and the third connecting rope is wound on a third transmission wheel (173); an eighth movable groove (174) matched with the bump (1721) is further formed in the inner wall of the seventh movable cavity; a second groove is formed in the bottom of the fourth sliding groove; and a fifth sliding block is arranged at the upper bottom of the third connecting plate, and a fifth sliding groove matched with the fifth sliding block is arranged on the inner wall of the seventh movable cavity.

4. A muffler containing a check valve according to claim 2, wherein: be equipped with linking frame (16) on the logical groove lateral wall, be equipped with the sixth spout on linking frame (16) inner wall, be equipped with first baffle (161) in the sixth spout, first baffle (161) top is equipped with second baffle (162).

5. A muffler containing a check valve according to claim 1, wherein: be equipped with supporting shoe (140) on outer staving (1) inner wall, the check valve subassembly is including locating mounting bracket (3) and rotatable coupling on supporting shoe (140) first turn over board (31) on mounting bracket (3), be equipped with first breach on first turn over board (31), be equipped with second go-between (32) on first turn over board (31), first turn over be equipped with on board (31) with second go-between (32) matched with gag lever post (311), be equipped with first connecting rope (321) on second go-between (32), first connecting rope (321) bottom be equipped with interior staving (2) matched with first scraper blade (33), first scraper blade (33) are the loop configuration.

6. The muffler with a check valve according to claim 5, wherein: a second movable ring (19) is arranged in the outer barrel body (1), a third connecting ring (191) is arranged on the side wall of the second movable ring (19), a second movable groove matched with the third connecting ring (191) is arranged on the inner wall of the outer barrel body (1), and a plurality of fan blades (196) are arranged on the inner wall of the second movable ring (19); an annular groove is formed in the side wall of the inner barrel body (2), a fourth connecting ring (26) is arranged in the annular groove, a fourth connecting rod (261) is arranged on the fourth connecting ring (26), a second scraper (262) is arranged on the fourth connecting rod (261), and the second scraper (262) is of an arc-shaped structure; when the second movable ring (19) rotates, the second scraper (262) rotates together with the second movable ring (19).