阅读说明：本技术 一种油烟机或新风机的风管组件 (Air pipe assembly of range hood or fresh air machine ) 是由 俞云良 于 2020-06-08 设计创作，主要内容包括：本发明公开了一种油烟机或新风机的风管组件,包括直管、连接组件和固定架,所述直管包括中空的管体,所述管体的两端的开口为敞口部,所述固定架套设于所述直管的管体的外表面将所述管道固定于待安装处；多个所述直管的首尾两端通过所述连接组件依次连接为中空的管道,所述直管和连接组件的连接处设有密封层。所述管体的管壁包括内管壁和外管壁,所述内管壁和外管壁之间设有若干个中空隔层。本发明所述的油烟机或新风机的风管组件,所包括的所述直管的管壁的中空结构可以具有隔音和降噪的优点,而且所述管体风阻小,所述内管壁和外管壁之间为中空结构可以填充获得更好的隔热和隔音效果。(The invention discloses an air pipe assembly of a range hood or a fresh air fan, which comprises a straight pipe, a connecting assembly and a fixing frame, wherein the straight pipe comprises a hollow pipe body, openings at two ends of the pipe body are open parts, and the fixing frame is sleeved on the outer surface of the pipe body of the straight pipe to fix a pipeline at a position to be installed; a plurality of the head and the tail of the straight pipe are connected in sequence through the connecting assembly to form a hollow pipeline, and a sealing layer is arranged at the joint of the straight pipe and the connecting assembly. The pipe wall of the pipe body comprises an inner pipe wall and an outer pipe wall, and a plurality of hollow interlayers are arranged between the inner pipe wall and the outer pipe wall. The air pipe assembly of the range hood or the fresh air fan comprises a hollow structure of the pipe wall of the straight pipe, so that the air pipe assembly has the advantages of sound insulation and noise reduction, the air resistance of the pipe body is small, and the hollow structure between the inner pipe wall and the outer pipe wall can be filled to obtain better heat insulation and sound insulation effects.)

1. The air pipe assembly of the range hood or the fresh air fan is characterized by comprising a straight pipe, a connecting assembly and a fixing frame, wherein the straight pipe comprises a hollow pipe body, openings at two ends of the pipe body are open parts, and the fixing frame is sleeved on the outer surface of the pipe body of the straight pipe to fix a pipeline at a position to be installed; a plurality of the head and the tail of the straight pipe are connected in sequence through the connecting assembly to form a hollow pipeline, and a sealing layer is arranged at the joint of the straight pipe and the connecting assembly.

2. The range hood or fresh air machine duct assembly according to claim 1, wherein the sealing layer is an elastic sealing ring or a sealing glue layer coated on the groove.

3. The range hood or fresh air machine duct assembly of claim 1, wherein the walls of the tubular body comprise an inner wall and an outer wall, and a plurality of hollow partitions are disposed between the inner wall and the outer wall.

4. The air duct assembly of a range hood or a fresh air fan as claimed in claim 3, wherein the straight tube further comprises straight tube reinforcing ribs, the straight tube reinforcing ribs are located between the inner tube wall and the outer tube wall and are respectively connected with the inner tube wall and the outer tube wall, and the plurality of reinforcing ribs are parallel to the axis of the straight tube and symmetrically distributed on the central axis of the straight tube.

5. The range hood or fresh air machine air duct assembly according to claim 3, wherein a low-density foaming material is filled between the inner pipe wall and the outer pipe wall.

6. A range hood or fresh air machine air pipe assembly as claimed in claim 3, wherein the radial cross section of the straight pipe is oval, the shape of the openings at the two ends of the straight pipe is the same and the two planes where the openings at the two ends of the straight pipe are located are parallel to each other, the connecting assembly comprises a straight connector, a first turning connector, a second turning connector and a third turning connector, the inside of the straight connector, the inside of the first turning connector, the inside of the second turning connector and the inside of the third turning connector are hollow, the openings at the two ends of the straight connector are oval open parts, the openings at the two ends of the straight connector, the first turning connector, the second turning connector and the third turning connector are internally provided with an oval groove which can be in interference fit with any end of the straight pipe, one side of the groove is located on the straight connector, the first turning connector, the second turning connector and the third turning connector, The inside wall that second turn joint or third turn joint is connected, the edge of the opposite side of recess is close to for the orientation the free end that the opening extends, the recess orientation is close to the opening just the plane at recess place is parallel to each other with being close to the plane at opening place, two the arbitrary one end of straight tube through with the assembly joint of two recesses in through connector, first turn joint, second turn joint or the third turn joint extends to different directions, the surface of recess all is equipped with the sealing layer, the sealing layer be located the recess with install in between the one end of straight tube.

7. The air pipe assembly of the range hood or the new fan as claimed in claim 6, wherein a straight-through mounting frame is arranged outside the straight-through connector, the straight-through mounting frame is provided with mounting holes, and straight-through reinforcing ribs are arranged on the inner wall of the straight-through connector; planes on which the surfaces of the two grooves in the through connector are located are parallel to each other and are perpendicular to the central axes of the openings at the two ends of the through connector, and the central axes of the openings at the two ends of the through connector are parallel and overlapped to form a straight line; the utility model discloses a fixing frame, including mount, mounting bracket, mounting hole, the inside cavity and both ends of mount are oval-shaped opening, the mount is equipped with the installing support, the inner wall of mount is equipped with the strengthening rib.

8. The air duct assembly of a range hood or a new fan according to claim 6, wherein an included angle formed between planes of the surfaces of the two grooves of the first elbow joint is 90 degrees, an included angle formed by intersecting straight lines of the longer diameters of the ellipses of the surfaces of the two grooves of the first elbow joint is 90 degrees, the straight lines of the shorter diameters of the ellipses of the surfaces of the two grooves of the first elbow joint are parallel to each other, and central axes of openings at two ends of the first elbow joint are perpendicular to each other; the second turns and connects two the contained angle that forms between the plane at the surface place of recess is 45, the second turns and connects two the contained angle that the straight line that the oval longer diameter place on the surface of recess intersects and forms is 45, the second turns and connects two the straight line that the oval shorter diameter place on the surface of recess is parallel to each other, one end wherein install in two in the second turns and connects two of recess the contained angle that the axis of straight tube intersects and forms is 135.

9. The lampblack absorber or new fan's tuber pipe subassembly of claim 6, characterized in that, the contained angle that forms between the plane that two of third turn connects the surface place of recess is 90, the contained angle that the straight line that the oval shorter diameter place on two of third turn connects the surface of recess intersects and forms is 90, two of third turn connects the straight line that the oval longer diameter place on the surface of recess is parallel to each other, the axis of opening at first turn connects both ends mutually perpendicular.

10. The air pipe assembly of the range hood or the fresh air fan according to claim 1, further comprising a windshield, wherein the windshield is installed on a hollow pipeline formed by sequentially connecting the plurality of straight pipes and the connecting assembly and is located at one end, far away from the connected range hood or the fresh air fan, of the pipeline; the connecting assembly further comprises a customized connecting piece, the customized connecting piece is provided with a plurality of openings, each opening is internally provided with an oval groove which can be in interference fit with any one end of the straight pipe, and included angles formed among planes of the surfaces of the grooves of the customized connecting piece are customized specific angles; the cross sections of the planes of the straight pipe and the groove of the connecting piece are the same in shape and are customized special shapes; the surface of the groove of the customized connecting piece is provided with the sealing layer.

Technical Field

The invention relates to the technical field of household appliances, in particular to an air pipe assembly of a range hood or a fresh air fan.

Background

The bellows is usually adopted to the tuber pipe of lampblack absorber or new fan on the existing market, and the advantage of bellows is that the installation is convenient, can bend at will, need not join in marriage the pipe of bending, and the low price, but give sound insulation and noise reduction effect are poor, and the pipeline is yielding untidy not pleasing to the eye, damages easily and is not fixed well.

Disclosure of Invention

The invention provides an air pipe assembly of a range hood or a fresh air fan, wherein the hollow structure of the pipe wall of a straight pipe contained in the air pipe assembly has the advantages of sound insulation and noise reduction.

In order to achieve the purpose, the invention adopts the following technical scheme:

an air pipe assembly of a range hood or a fresh air fan comprises a straight pipe, a connecting assembly and a fixing frame, wherein the straight pipe comprises a hollow pipe body, openings at two ends of the pipe body are open parts, and the fixing frame is sleeved on the outer surface of the pipe body of the straight pipe to fix a pipeline at a position to be installed; a plurality of the head and the tail of the straight pipe are connected in sequence by the connecting component to form a hollow pipeline, and a sealing layer is arranged at the joint of the straight pipe and the connecting component.

Furthermore, the sealing layer is an elastic sealing ring or a sealing glue layer coated on the groove.

Furthermore, the pipe wall of the pipe body comprises an inner pipe wall and an outer pipe wall, and a plurality of hollow interlayers are arranged between the inner pipe wall and the outer pipe wall.

Furthermore, the straight pipe also comprises straight pipe reinforcing ribs, the straight pipe reinforcing ribs are positioned between the inner pipe wall and the outer pipe wall and are respectively connected with the inner pipe wall and the outer pipe wall, and the plurality of reinforcing ribs and the axis of the straight pipe are parallel and symmetrically distributed on the central axis of the straight pipe.

Further, a low-density foaming material is filled between the inner pipe wall and the outer pipe wall.

Further, the radial cross section of the straight pipe is oval, the openings at the two ends of the straight pipe are in the same shape, the two planes where the openings at the two ends of the straight pipe are located are parallel to each other, the connecting assembly comprises a through connector, a first turning connector, a second turning connector and a third turning connector, the through connector, the first turning connector, the second turning connector and the third turning connector are hollow inside, the openings at the two ends of the through connector, the first turning connector, the second turning connector and the third turning connector are all oval open parts, oval grooves capable of being in interference fit with any end of the straight pipe are respectively arranged in the openings at the two ends of the through connector, the first turning connector, the second turning connector or the third turning connector, one side of each groove is connected with the inner side wall of the through connector, the first turning connector, the second turning connector or the third turning connector, the edge of the opposite side of recess is for the orientation is close to the free end that the opening extends, the recess orientation is close to the opening just the plane at recess place with be close to the plane at opening place is parallel to each other, two arbitrary one end of straight tube through with the assembly connection of two recesses in through connector, first turn joint, second turn joint or the third turn joint extends to different directions, the surface of recess all is equipped with the sealing layer, the sealing layer is located the recess with install in the recess between the one end of straight tube.

Further, a straight-through mounting frame is arranged outside the straight-through connector, mounting holes are formed in the straight-through mounting frame, and straight-through reinforcing ribs are arranged on the inner wall of the straight-through connector; planes on which the surfaces of the two grooves in the through connector are located are parallel to each other and are perpendicular to the central axes of the openings at the two ends of the through connector, and the central axes of the openings at the two ends of the through connector are parallel and overlapped into a straight line; the fixing frame is hollow, the two ends of the fixing frame are oval openings, the fixing frame is provided with a mounting support, the mounting support is provided with mounting holes, and reinforcing ribs are arranged on the inner wall of the fixing frame.

Furthermore, an included angle formed between planes of the surfaces of the two grooves of the first turning joint is 90 degrees, a straight line formed by intersecting the longer elliptical diameters of the surfaces of the two grooves of the first turning joint is 90 degrees, straight lines formed by intersecting the shorter elliptical diameters of the surfaces of the two grooves of the first turning joint are parallel to each other, and central axes of openings at two ends of the first turning joint are perpendicular to each other; the second turns and connects two the contained angle that forms between the plane at the surface place of recess is 45, the second turns and connects two the crossing contained angle that forms of the straight line at the oval longer diameter place on the surface of recess is 45, the second turns and connects two the straight line at the oval shorter diameter place on the surface of recess is parallel to each other, one end wherein install in the second turns and connects two the recess two the crossing contained angle that forms of the axis of straight tube is 135.

Further, the third turns and connects two the contained angle that forms between the plane at the surface place of recess is 90, the third turns and connects two the oval short diameter place's on the surface of recess straight line is crossing the contained angle that forms and is 90, the third turns and connects two the oval long diameter place's on the surface of recess straight line is parallel to each other, the axis mutually perpendicular of the opening at the both ends of first turning and connecting.

The wind shield is arranged in a hollow pipeline formed by sequentially connecting the straight pipes and the connecting assembly and is positioned at one end of the pipeline, which is far away from the connected range hood or fresh air fan; the connecting assembly further comprises a customized connecting piece, the customized connecting piece is provided with a plurality of openings, each opening is internally provided with an oval groove which can be in interference fit with any one end of the straight pipe, and included angles formed among planes of the surfaces of the grooves of the customized connecting piece are customized specific angles; the cross sections of the planes of the straight pipe and the groove of the connecting piece are the same in shape and are customized special shapes; the surface of the groove of the customized connecting piece is provided with the sealing layer.

The invention has the beneficial effects that:

according to the air pipe assembly of the range hood or the fresh air fan, the hollow structure of the pipe wall of the straight pipe has the advantages of sound insulation and noise reduction, and the hollow structure can be filled with foaming materials and can obtain better heat insulation and sound insulation effects.

The straight pipe of the air pipe assembly of the range hood or the new fan can be connected with the straight connector, the first turning connector, the second turning connector and the third turning connector in various modes, the various connection modes can meet the requirements of different installation places, and the applicability of the air pipe assembly of the range hood or the new fan can be improved.

Drawings

FIG. 1 is a schematic structural view of a straight pipe according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a fixing frame according to an embodiment of the present invention;

fig. 3a is a schematic structural diagram of a through connector according to an embodiment of the present invention;

FIG. 3b is an axial view of the through connection head of the embodiment of FIG. 3;

FIG. 4a is a schematic structural view of a first knuckle according to one embodiment of the present invention;

FIG. 4b is a top view of the first knuckle joint of the embodiment of FIG. 4 a;

FIG. 5a is a schematic diagram of a second turning joint in accordance with one embodiment of the present invention;

FIG. 5b is a right side view of a second turning joint of the embodiment in FIG. 5 a;

FIG. 6a is a schematic view of a third turning joint in accordance with one embodiment of the present invention;

FIG. 6b is a top view of a third turning joint of the embodiment in FIG. 6 a;

FIG. 7 is a schematic view of the connection of piping according to one embodiment of the present invention;

FIG. 8 is a front view of the tubing of the embodiment of FIG. 7;

wherein: a straight pipe 1; a fixed frame 2; a straight-through connector 3; a first knuckle joint 4; a second turning joint 5; a third turning joint 6; a tube body 11; the inner tube wall 111; an outer tube wall 112; a straight pipe reinforcing rib 113; a mounting bracket 21; a reinforcing rib 22; a through mounting frame 31; a sealing layer 32; through the ribs 33.

Detailed Description

The technical scheme of the invention is further explained by combining the attached figures 1-8 and the specific implementation mode.

The utility model provides a lampblack absorber or new fan's tuber pipe subassembly, includes straight tube 1, coupling assembling and mount 2, straight tube 1 includes hollow body 11, the opening at the both ends of body 11 is open portion, and is a plurality of the end to end both ends of straight tube 1 are passed through coupling assembling connects gradually for hollow pipeline, 2 covers of mount locate the surface of the body of straight tube 1 will the pipeline is fixed in treats installation department, the junction of straight tube 1 and coupling assembling is equipped with sealing layer 32.

The air pipe assembly of the range hood or the fresh air fan comprises the connecting assembly, different connecting modes can be realized through the connecting assembly, the air pipe assembly of the range hood or the fresh air fan can meet the requirements of different installation places, and the applicability of the air pipe assembly of the range hood or the fresh air fan can be improved. The straight tube 1 is equipped with the sealing layer with coupling assembling's junction, and the sealing layer can prevent oil leak or weeping, the sealing layer can be independent, also can mould plastics on the mount or on the body.

The pipe body can be of a single-layer structure, and can also be of a double-layer or multi-layer structure, wherein the double-layer or multi-layer pipe body is of a hollow structure and can be filled with sound-insulation foaming materials. The pipe wall of the pipe body 11 is smooth.

Furthermore, the sealing layer is an elastic sealing ring or a sealing glue layer coated on the groove.

Further, the pipe wall of the pipe body 11 includes an inner pipe wall 111 and an outer pipe wall 112, and a plurality of hollow interlayers are disposed between the inner pipe wall 111 and the outer pipe wall 112.

As shown in fig. 1, in the air duct assembly of a range hood or a new fan according to the present invention, the hollow structure of the wall of the straight pipe 1 may have the advantages of sound insulation and noise reduction, the pipe body 1 has no corrugation of the corrugated pipe and thus has a smaller wind resistance than the corrugated pipe, and the hollow structure between the inner pipe wall 111 and the outer pipe wall 112 may be filled with a foam material and obtain better heat insulation and sound insulation effects.

Further, the straight pipe 1 further includes straight pipe reinforcing ribs 113, the straight pipe reinforcing ribs 113 are located between the inner pipe wall 111 and the outer pipe wall 112, and are respectively connected to the inner pipe wall 111 and the outer pipe wall 112, and the plurality of reinforcing ribs 113 are parallel to the axis of the straight pipe 1 and symmetrically distributed on the central axis of the straight pipe 1.

The plurality of reinforcing ribs 113 are parallel to the axis of the straight pipe 1 and symmetrically distributed on the axis of the straight pipe 1, and the plurality of reinforcing ribs 113 are respectively connected with the inner pipe wall 111 and the outer pipe wall 112, so that the tensile strength of the straight pipe 1 can be improved, and the straight pipe 1 can have a longer service life.

Further, a low-density foaming material is filled between the inner pipe wall 111 and the outer pipe wall 112.

The filled low-density foaming material can enable the straight pipe 1 to have better sound insulation and heat insulation effects, so that an air pipe component of the range hood or the fresh air fan can have better energy-saving, consumption-reducing and noise-reducing performances, and the low-density foaming material can be EVA, EPDM, SBR, CR, NBR/PVC, PE, XPE/IXPE material.

Further, the radial cross section of straight tube 1 is oval, the shape of the opening at the both ends of straight tube 1 is the same just two planes at the opening place at the both ends of straight tube 1 are parallel to each other, coupling assembly includes through connector 3, first turning joint 4, second turning joint 5 and third turning joint 6, the inside cavity and the opening at both ends of through connector 3, first turning joint 4, second turning joint 5 and third turning joint 6 are oval opening portion, all be equipped with in the opening at the both ends of through connector 3, first turning joint 4, second turning joint 5 and third turning joint 6 one can with the oval recess of arbitrary one end interference fit of straight tube 1, one side of recess and place through connector 3, first turning joint 4, The inner side walls of the second turning joint 5 or the third turning joint 6 are connected, the edge of the other side of the groove is a free end extending towards the close opening, the groove faces the close opening, the plane where the groove is located is parallel to the plane where the close opening is located, and any one end of the two straight pipes 1 extends towards different directions through the assembly connection with the two grooves in the straight-through connector 3, the first turning joint 4, the second turning joint 5 or the third turning joint 6; the sealing layer 32 is arranged on the surface of each groove, and the sealing layer 32 is located between each groove and one end, mounted on the groove, of the straight pipe 1.

Any end of the straight pipe 1 included in the air pipe assembly of the range hood or the new fan can be extended in multiple directions through the assembly connection with the two grooves in the straight connector 3, the first turning connector 4, the second turning connector 5 or the third turning connector 6, the air pipe assembly of the range hood or the new fan can meet the requirements of different installation places through multiple connection modes, and the applicability of the air pipe assembly of the range hood or the new fan can be improved.

Further, a straight-through mounting frame 31 is arranged outside the straight-through connector 3, a mounting hole is formed in the straight-through mounting frame 31, and a straight-through reinforcing rib 33 is arranged on the inner wall of the straight-through connector 3; planes on which the surfaces of the two grooves in the through connector 3 are located are parallel to each other and perpendicular to the central axes of the openings at the two ends of the through connector 3, and the central axes of the openings at the two ends of the through connector 3 are parallel and overlapped to form a straight line; the utility model discloses a fixing frame 2, including mount 2, mounting bracket 21, the inside cavity and both ends of mount 2 are oval-shaped opening, mount 2's inner wall is equipped with strengthening rib 22.

As shown in fig. 2, the fixing frame 2 having the mounting bracket and the reinforcing ribs can improve the convenience and safety of the installation of the air duct assembly of the range hood or the fresh air fan of the present invention.

The structure of through connection head 3 is as shown in fig. 3a, fig. 3b, two in the through connection head 3 the plane at the surface place of recess be parallel to each other and with the open-ended well axis at the both ends of through connection head 3 is perpendicular, the parallel and overlap of open-ended axis at the both ends of head through connection 3 is a straight line to make one end wherein install in two in the through connection head 3 two of recess the parallel and overlap of axis of straight tube 1 is a straight line, makes the tuber pipe subassembly of lampblack absorber or new fan can pass through according to the needs at the installation site through connection head 3 respectively with two the connection of straight tube 1 extends in a same direction the pipeline that forms is assembled to the tuber pipe subassembly of lampblack absorber or new fan.

The straight-through connector 3 is provided with the straight-through mounting frame 31 and the straight-through reinforcing ribs 33, so that the convenience and the safety of the installation of the air pipe assembly of the range hood or the fresh air fan can be improved.

Two in the through connector 3 the surface of recess all is equipped with sealing layer 32, can improve the leakproofness of the tuber pipe subassembly of lampblack absorber or new fan to better have better energy-conserving the performance of making an uproar of falling.

Further, two of first turning joint 4 the contained angle that forms between the plane at the surface place of recess is 90, two of first turning joint 4 the contained angle that the straight line at the oval longer diameter place on the surface of recess intersects and forms is 90, two of first turning joint 4 the straight line at the oval shorter diameter place on the surface of recess is parallel to each other, the open-ended axis mutually perpendicular at the both ends of first turning joint 4.

The structure of the first turning joint 4 is as shown in fig. 4a and 4b, the included angle formed by the intersection of the straight lines of the longer elliptical diameters of the surfaces of the two grooves of the first turning joint 4 is 90 degrees, the straight lines of the shorter elliptical diameters of the surfaces of the two grooves of the first turning joint 4 are parallel to each other, the central axes of the openings at the two ends of the first turning joint 4 are perpendicular to each other, so that the central axes of the two straight pipes 1 with one end mounted in the two grooves of the first elbow joint 4 are perpendicular to each other, so that the air pipe assembly of the range hood or the fresh air fan can be respectively connected with the two straight pipes 1 through the first turning joint 4 according to the requirements of an installation site, and the pipeline is formed by assembling air pipe components of the range hood or the fresh air fan and extends in a direction vertical to each other.

Further, the second turns and connects 5 two the contained angle that forms between the plane at the surface place of recess is 45, the second turns and connects 5 two the oval longer diameter place's on the surface of recess straight line is crossing the contained angle that forms and is 45, the second turns and connects 5 two the oval shorter diameter place's on the surface of recess straight line is parallel to each other, one end wherein install in the second turns and connects 5 two the recess two the crossing contained angle that forms of the axis of straight tube 1 is 135.

Has the advantages that: the second turning joint 5 is constructed as shown in fig. 5a and 5b, the included angle formed by the intersection of straight lines where the longer diameters of the ellipses of the surfaces of the two grooves of the second turning joint 5 are located is 45 degrees, the straight lines on which the shorter diameters of the ellipses of the surfaces of the two grooves of the second turning joint 5 lie are parallel to each other, so that the included angle formed by the intersection of the central axes of the two straight pipes 1 of the two grooves with one end installed in the second turning joint 5 is 135 degrees, so that the air pipe components of the oil smoke machine or the fresh air machine can be respectively connected with the two straight pipes 1 through the second turning joint 5 according to the requirements of the installation site, and the included angle formed by the intersection of the central axes of the two straight pipes 1 is 135 degrees, and the pipeline is formed by assembling air pipe components of the range hood or the fresh air fan.

Further, the third turns and connects 6 two the contained angle that forms between the plane at the surface place of recess is 90, the third turns and connects 6 two the contained angle that the straight line that the oval shorter diameter place on the surface of recess intersects and forms is 90, the third turns and connects 6 two the straight line that the oval longer diameter place on the surface of recess is parallel to each other, the axis mutually perpendicular of the opening at the both ends of first turning joint 4.

The structure of the third turning joint 6 is as shown in fig. 4a and 4b, the included angle formed by the intersection of the straight lines of the elliptical longer diameters of the surfaces of the two grooves of the third turning joint 6 is 90 degrees, the straight lines of the elliptical shorter diameters of the surfaces of the two grooves of the third turning joint 6 are parallel to each other, the central axes of the openings at the two ends of the third turning joint 6 are perpendicular to each other, so that the central axes of the two straight pipes 1 with one end thereof mounted in the two grooves of the third turning joint 6 are perpendicular to each other, so that the air pipe assembly of the range hood or the fresh air fan can be respectively connected with the two straight pipes 1 through the third turning joint 6 according to the requirements of an installation site, and a pipeline formed by assembling air pipe components of the range hood or the fresh air fan is extended in the other direction which is vertical to each other.

The straight pipe 1 included in the air pipe assembly of the range hood or the fresh air fan can be connected with the straight connector 3, the first turning connector 4, the second turning connector 5 and the third turning connector 6 in various modes, and can be selected according to the requirements of an installation site, so that the installed pipeline can obtain more tidy, attractive and practical effects.

The wind shield is arranged in a hollow pipeline formed by sequentially connecting a plurality of straight pipes 1 and the connecting assembly and is positioned at one end, far away from the connected range hood or fresh air fan, of the pipeline; the connecting assembly further comprises a customized connecting piece, the customized connecting piece is provided with a plurality of openings, each opening is internally provided with an oval groove which can be in interference fit with any one end of the straight pipe 1, and included angles formed among planes of the surfaces of the grooves of the customized connecting piece are customized specific angles; the cross sections of the planes of the straight pipe 1 and the groove of the connecting piece are the same in shape and are customized special shapes; the sealing layer 32 is provided on the surface of the groove of the customized connector.

The wind cap and the unconventional connecting piece which can be arranged at the opening at one end of the straight pipe 1 can further improve the assembly applicability of the wind pipe assembly of the range hood or the new fan, and can better meet the requirements of different installation places, the cross sections of the planes of the straight pipe 1 and the groove of the connecting piece are the same in shape and can be square, rectangular, circular, oval or other shapes capable of being mutually matched, and the applicability of the wind pipe assembly of the range hood or the new fan can be further improved.

The utility model provides an adopt as shown in figure 7 and figure 8 the tuber pipe subassembly assembly's of lampblack absorber or new fan pipeline, by 6 the both ends of straight tube 1 respectively with 1 first turning joint 4, 2 second turning joint 5, 1 mount 2, 1 direct connector 3 and 1 second turning joint 6 is consecutive assembly end to end in proper order forms, see that figure 7 and figure 8 are shown to be visible: the pipeline that assembles contains from a left side to the right side and has gone on 90 switchings upwards in proper order, the right-hand 135 switchings of making progress, the continuation of direct connection of right side extend and the turn connection or direct connection of 90 switchings of making progress 5 times total, the head and the tail both ends open-ended axis of the free end of straight tube 1 is mutually perpendicular, and the middle part has two fixed installation's part to be respectively the installing support 21 that mount 2 was equipped with and direct mounting bracket 31 that connector 3 was equipped with has good stability, and the pipeline that assembles and form is neat, pleasing to the eye and firm safety.

In conclusion, the air pipe assembly of the range hood or the fresh air fan can be selected and assembled according to the requirements of an installation site, the installed pipeline can have more tidy, beautiful and practical effects, and the air pipe assembly of the range hood or the fresh air fan has good installation convenience and safety.

The technical principle of the present invention is described above in connection with specific embodiments. The description is only intended to explain the principles of the invention; and should not be construed as limiting the scope of the invention in any way. Based on the explanations herein; other specific embodiments of the invention will suggest themselves to those skilled in the art without the need to exercise inventive faculty; all of which fall within the scope of the present invention.