CN220269472U - Lampblack fan system - Google Patents

Abstract

The utility model discloses an oil smoke fan system, which belongs to the field of kitchen appliances, and comprises a fan and an air pipe assembly, wherein the air pipe assembly is connected with the fan and comprises an elbow, a connecting section and an air outlet pipeline; one side of the elbow bends towards the direction of the installation wall surface and is attached to the installation wall surface, one end of the elbow is connected with an air outlet of the fan, and the connecting section is detachably connected between the elbow and the air outlet pipeline; the air outlet pipeline and one side of the connecting section, which faces the installation wall surface, are both planar and are attached to the installation wall surface. The new mechanical structure of this scheme utilization for the contact surface is great between tuber pipe subassembly and the installation wall, and the installation is comparatively convenient and reliable.

Description

Lampblack fan system

Technical Field

The utility model relates to the field of kitchen appliances, in particular to a lampblack fan system.

Background

When cooking activities are performed in a kitchen, oil smoke is often generated. Along with the improvement of the living standard of people, at present, people usually set smoke discharging devices such as a smoke ventilator in a kitchen so as to discharge the smoke outdoors, and the damage of the smoke to human bodies is reduced.

The existing range hood generally comprises a fan and an air pipe, and the negative pressure is manufactured by the fan to suck the oil smoke into the air pipe and discharge the oil smoke outdoors. Most of the current range hood air pipes are round pipes, are limited by the installation position of a fan and the structure of an air outlet of the fan, have gaps between the air pipes and a cabinet, and often need to be additionally provided with a bracket in the cabinet to support the air pipes. The arrangement mode enables the air pipe to occupy more internal space of the cabinet, meanwhile, the contact surface between the air pipe and the cabinet is small, and the connection strength is limited.

Disclosure of Invention

The utility model aims to provide an oil smoke fan system which has the effects of small occupied space and reliable installation.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a lampblack fan system, which is used for a cabinet, wherein an inner cavity of the cabinet is provided with a mounting wall surface for mounting the lampblack fan system, the lampblack fan system comprises a fan and an air pipe assembly, the air pipe assembly is connected with the fan, and the air pipe assembly comprises an elbow, a connecting section and an air outlet pipeline; one side of the elbow bends towards the direction of the installation wall surface and is attached to the installation wall surface, one end of the elbow is connected with an air outlet of the fan, and the connecting section is detachably connected between the elbow and the air outlet pipeline; the air outlet pipeline and one side of the connecting section, which faces the installation wall surface, are both planar and are attached to the installation wall surface.

In this scheme, the one end of the elbow of tuber pipe subassembly is connected in the air outlet of fan, and the other end passes through the linkage segment and is connected with air-out pipeline, and fan manufacturing wind pressure is with oil smoke suction tuber pipe subassembly in and discharge the oil smoke through air-out pipeline. The elbow bends towards the direction close to the installation wall surface and is attached to the installation wall surface, so that the structure is not limited to the installation position of the fan and the structure of the air outlet, the air outlet pipeline can be attached to the installation wall surface of the cabinet, the space in the cabinet occupied by the air pipe assembly is saved, and meanwhile, the air outlet pipeline and the connecting section are provided with the plane on one side and attached to the installation wall surface, so that the contact surface between the air pipe assembly and the installation wall surface is larger, and the installation is convenient and reliable; the connecting section is detachably connected between the elbow and the air outlet pipeline, so that the air pipe assembly is convenient to assemble and disassemble.

Preferably, the air outlet pipeline is square, and on a tangential plane perpendicular to the extending direction of the air outlet pipeline, the length of one side of the air outlet pipeline, which is attached to the mounting wall surface, is greater than the length of one side of the air outlet pipeline, which is perpendicular to the mounting wall surface.

In this scheme, the air-out pipeline is square pipe, and its simple manufacture obtains the cost lower, guarantees that one side of its laminating installation wall is the plane. On the tangent plane of perpendicular to air-out pipeline's extending direction, the length of air-out pipeline laminating in the one side of installation wall is greater than the length of its one side perpendicular to installation wall, and the cross section of air-out pipeline is flat rectangle promptly, and the long limit laminating of rectangular cross section in the installation wall, makes under the circumstances of the same air-out volume from this, and the laminating area of air-out pipeline and installation wall is bigger for the installation of air-out pipeline on the installation wall is more firm.

Preferably, a first spigot is arranged at one end of the connecting section, which faces the air outlet pipeline, and a second spigot matched with the first spigot is arranged at one end of the air outlet pipeline, which faces the connecting section.

In this scheme, through the cooperation of first tang and second tang, realize the preliminary location of linkage segment and air-out pipeline, and then be convenient for the linkage segment be connected with air-out pipeline.

Preferably, the first spigot is recessed towards a direction away from the second spigot to form a sealing groove, a sealing ring is embedded in the sealing groove, and the sealing ring is simultaneously abutted to the first spigot and the second spigot.

In this scheme, sunken formation seal groove in the first tang to the installation of sealing washer is sealed the junction of linkage segment and air-out pipeline through the sealing washer, avoids this junction gas leakage weeping. The sealing groove is used for giving way to the sealing ring, so that the situation that the first spigot and the second spigot cannot be matched due to the installation of the sealing ring is avoided; simultaneously, the sealing groove limits the sealing ring, so that the sealing ring is not easy to shift when the first spigot is matched with the second spigot, and the sealing effect is ensured.

Preferably, the air duct assembly further comprises a fastener passing through the overlapping portion of the first spigot and the second spigot at the same time.

In this scheme, the fastener passes the part that first tang and second tang overlap simultaneously and is connected linkage segment and play air pipe, because the setting of first tang and second tang for there is sufficient overlap between linkage segment and the play air pipe, and then be convenient for connect the two through the fastener.

Preferably, the air duct assembly further comprises a buffer gasket, and the buffer gasket is abutted between one opposite sides of the first spigot and the second spigot.

In this scheme, buffer spacer butt is between first tang and second tang, buffers linkage segment and air-out pipeline to reduce because of the mutual vibrations collision between linkage segment and the air-out pipeline that the fan during operation leads to, reduce the noise that produces between linkage segment and the air-out pipeline, reduce simultaneously because of the influence of mutual vibrations to linkage segment and air-out pipeline's joint strength.

Preferably, the outer periphery of the connecting section is provided with a first protruding portion in a laterally protruding mode, the outer periphery of the air outlet pipeline is provided with a second protruding portion in a laterally protruding mode, the second protruding portion corresponds to the first protruding portion, one of the first protruding portion and the second protruding portion is provided with an ejection screw hole, an ejection bolt is arranged in the ejection screw hole in a penetrating mode, and the tail end of the ejection bolt is abutted to the other of the first protruding portion and the second protruding portion.

In this scheme, through setting up corresponding first bellying and second bellying in the periphery of linkage segment and play air duct to set up ejecting screw and with ejecting screw complex ejecting bolt on one of them, thereby when needs dismantlement linkage segment and play air duct, accessible rotatory ejecting bolt makes ejecting bolt jack-up the linkage segment to the direction of keeping away from out air duct, has made things convenient for user operation.

Preferably, the middle part of the second protruding portion protrudes towards the direction away from the first protruding portion to form a bolt mounting portion, and the ejection screw hole is formed in the bolt mounting portion.

In this scheme, ejecting screw sets up on the second bellying, and the middle part of second bellying is to keeping away from the direction protrusion of first bellying and forms bolt installation department for the second bellying is thick in the middle shape of thin all around, and bolt installation department is thicker in order to offer the ejecting screw of great depth, thereby makes ejecting bolt's cooperation more firm, can effectively save material all around of second bellying thinner simultaneously, alleviates the dead weight of second bellying.

Preferably, the first protruding part is annular and is fixedly sleeved on the periphery of the connecting section;

and/or the second bulge part is annular and fixedly sleeved on the periphery of the air outlet pipeline.

In the scheme, the first bulge part is annular and is fixed on the periphery of the connecting section, so that the first bulge part is an integral body, and the forces of the ejection bolts acting on all points of the first bulge part can be distributed on the annular first bulge part, so that deformation caused by stress concentration of part of the first bulge part is avoided;

and/or the second bulge part is also annular and circumferentially fixed on the periphery of the air outlet pipeline, so that the second bulge part is an integral body, and the forces of the ejection bolts acting on all points of the second bulge part can be distributed on the annular second bulge part, thereby avoiding deformation caused by stress concentration of part of the second bulge part.

Preferably, the air duct assembly further comprises a conversion head connected between the fan and the elbow, one end of the conversion head is matched with an air outlet of the fan, and one end, far away from the fan, of the conversion head is matched with the elbow.

In this scheme, the tuber pipe subassembly passes through different fans and the elbow of switching head adaptation to promote the suitability of this lampblack fan system.

In summary, the utility model has the following beneficial effects:

according to the utility model, the elbow bends towards the installation wall surface, so that the air outlet pipeline can be attached to the installation wall surface of the cabinet, the space in the cabinet occupied by the air pipe assembly is saved, and meanwhile, as the air outlet pipeline and the connecting section are both provided with one side which is a plane and attached to the installation wall surface, the contact surface between the air pipe assembly and the installation wall surface is larger, and the installation is more convenient and reliable; the connecting section is detachably connected between the elbow and the air outlet pipeline, so that the air pipe assembly is convenient to assemble and disassemble.

Drawings

Fig. 1 is an exploded view of a range hood system according to an embodiment of the present utility model.

Fig. 2 is a schematic cross-sectional view of a connecting section, an elbow and an air outlet pipe according to an embodiment of the present utility model.

Fig. 3 is an enlarged schematic view at a in fig. 2.

Fig. 4 is an enlarged schematic view at B in fig. 2.

Fig. 5 is a schematic cross-sectional view of a connecting section, an elbow and an air outlet pipe according to an embodiment of the present utility model.

Fig. 6 is a schematic cross-sectional structure of a first boss and a second boss according to an embodiment of the present utility model.

Fig. 7 is a schematic view of another exploded construction of the oil smoke blower system of the present utility model.

In the figure:

100. installing a wall surface; 200. a smoke ventilator system; 210. a blower; 220. an air duct assembly; 221. an elbow; 2211. a fourth spigot; 2212. a fourth protruding portion; 222. a connection section; 2221. a first spigot; 2222. sealing grooves; 2223. a seal ring; 2224. a gasket mounting groove; 2225. a third spigot; 2226. a first boss; 2227. a third boss; 223. an air outlet pipeline; 2231. a second spigot; 2232. a second protruding portion; 224. a fastener; 225. a buffer pad; 226. ejecting a bolt; 227. a bolt mounting portion; 228. ejection screw holes; 229. a conversion head; 230. and a fan bracket.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Example 1

Referring to fig. 1, the present embodiment discloses a smoke blower system 200 provided in a cabinet for exhausting smoke in a kitchen. Wherein the interior cavity of the cabinet has a mounting wall 100 for mounting the extractor hood system 200. Specifically, the mounting wall 100 may be an inner side wall or an inner bottom wall of the cabinet, and in this embodiment, the mounting wall 100 is specifically a rear side wall of the cabinet (i.e., an inner wall of a side of the cabinet away from the cabinet door).

Referring to fig. 1, the oil smoke blower system 200 includes a blower 210 and a duct assembly 220, the duct assembly 220 is connected to the blower 210, and the air pressure is generated by the blower 210 to suck the indoor oil smoke and discharge the oil smoke to the outside through the duct assembly 220.

Wherein the blower 210 is fixed to the mounting wall 100. Specifically, in the present embodiment, a fan bracket 230 is disposed outside the fan 210, and the fan bracket 230 is box-shaped and is connected or clamped to the mounting wall 100 of the cabinet by bolts. The upper end of the blower bracket 230 is opened to facilitate the air intake of the blower 210. The fan 210 is fixed in the fan bracket 230, and an air outlet of the fan 210 extends out of the fan bracket 230 to be connected with the air duct assembly 220. Thus, the blower 210 is supported and protected by the blower bracket 230. In other embodiments, the fan 210 may be directly fixed to the installation wall 100 without providing the fan bracket 230.

Referring to fig. 1, air duct assembly 220 includes elbow 221, connecting section 222, and air outlet duct 223. One end of the elbow 221 is connected to the air outlet of the fan 210, and the other end is connected to the connecting section 222. The end of the connecting section 222 remote from the elbow 221 is connected to an air outlet duct 223. Elbow 221, connecting section 222 and air outlet conduit 223 are all secured to mounting wall 100.

Preferably, referring to FIG. 1, air duct assembly 220 further includes a transition head 229 coupled between blower 210 and elbow 221. One end of the conversion head 229 is adapted to the air outlet of the fan 210, and one end of the conversion head 229, which is far away from the fan 210, is adapted to the elbow 221. The air duct assembly 220 is adapted to different fans 210 and elbows 221 through the transition head 229 to promote the applicability of the oil smoke fan system 200.

The conversion head 229 may be a round or square one, and may be specifically selected according to the structure of the blower 210 and the shape of the connection section 222.

In this embodiment, a flange is disposed on the outer periphery of one end of the conversion head 229 near the air outlet of the fan 210, and the conversion head 229 is connected with the air outlet of the fan 210 through the flange.

In this embodiment, the whole of the elbow 221 is curved in a direction approaching the installation wall surface 100, so that the inner side of the elbow 221 can be attached to the installation wall surface 100. In other embodiments, the bend 221 may be curved only on the side thereof adjacent to the mounting wall 100.

In this embodiment, along the direction away from the air outlet of the fan 210, the curvature of the bend 221 gradually decreases, and the curvature of one end of the bend 221 away from the fan 210 is zero, i.e. the portion of the side of the bend 221 close to the mounting wall 100 near the air outlet pipe 223 is parallel to the mounting wall 100, so that the bend 221 can be attached to the mounting wall 100, thereby facilitating the mounting of the bend 221 and increasing the contact area between the bend 221 and the mounting wall 100. Therefore, the structure of the air outlet and the installation position of the fan 210 are not limited, and the air outlet pipeline 223 can be attached to the installation wall surface 100 of the cabinet for installation, so that the space in the cabinet occupied by the air pipe assembly 220 is saved.

In this embodiment, the connection section 222 and the air outlet duct 223 are both horizontally disposed parallel to the installation wall surface 100. Wherein the interior of the connecting section 222 is hollow and communicates with the elbow 221 and the air outlet pipe 223. The air outlet pipe 223 is extended out of the room at one end far from the connection section 222 to discharge the oil smoke.

The air outlet pipe 223 faces the mounting wall surface 100 and the connecting section 222 faces the mounting wall surface 100, and is attached to the mounting wall surface 100. The contact surface between the air duct assembly 220 and the installation wall surface 100 is large, and the installation is convenient and reliable. The connecting section 222 is detachably connected between the elbow 221 and the air outlet pipe 223, so as to facilitate the disassembly and assembly of the air pipe assembly 220.

In this embodiment, the air outlet pipe 223 is a square pipe, and the length of one side of the air outlet pipe 223 attached to the mounting wall surface 100 is longer than the length of one side of the air outlet pipe 223 perpendicular to the mounting wall surface 100 on a tangential plane perpendicular to the extending direction of the air outlet pipe 223 (i.e. along a vertical tangential plane perpendicular to the mounting wall surface 100). That is, the air outlet duct 223 is a flat square tube, and the larger area side thereof is attached to the installation wall surface 100. By adopting the air outlet pipeline 223, the manufacturing is simple, the acquisition cost is low, and one side of the air outlet pipeline, which is attached to the mounting wall surface 100, is ensured to be a plane. Meanwhile, under the condition of the same air output, the joint area of the air outlet pipeline 223 and the mounting wall surface 100 is larger, so that the mounting of the air outlet pipeline 223 on the mounting wall surface 100 is firmer.

Preferably, the connecting section 222 is also a flat square tube, and the end of the elbow 221 near the connecting section 222 is open with a rectangular opening. The shape of the vertical section surface of the connecting section 222 perpendicular to the installation wall surface 100 is the same as the shape of the vertical section surface of the air outlet pipeline 223 perpendicular to the installation wall surface 100, so that the connecting section 222 is flush with the peripheral side of the air outlet pipeline 223, and the connecting section 222 and the air outlet pipeline 223 are conveniently attached to the installation wall surface 100.

Referring to fig. 2 and 3, an end of the connection section 222 facing the air outlet duct 223 is provided with a first spigot 2221, and the first spigot 2221 is disposed at an edge of an opening of the connection section 222. The end of the air outlet pipe 223 facing the connecting section 222 is provided with a second spigot 2231. The second spigot 2231 is provided at the opening edge of the air outlet duct 223. The first spigot 2221 is matched with the second spigot 2231, so that preliminary positioning of the connection section 222 and the air outlet pipe 223 is realized, and connection of the connection section 222 and the air outlet pipe 223 is facilitated.

Specifically, in the present embodiment, the first spigot 2221 is a female spigot, and the second spigot 2231 is a male spigot. When the connection section 222 is connected with the air outlet pipe 223, the second spigot 2231 is inserted into the first spigot 2221, so as to realize preliminary butt joint of the connection section 222 and the air outlet pipe 223. In still other embodiments, the first spigot 2221 can be a male spigot and the second spigot 2231 can be a female spigot.

Referring to fig. 2 and 3, the first spigot 2221 is recessed toward a direction away from the second spigot 2231 to form a sealing groove 2222, and a sealing ring 2223 is embedded in the sealing groove 2222, and the sealing ring 2223 is simultaneously abutted against the first spigot 2221 and the second spigot 2231. The joint between the connection section 222 and the air outlet pipe 223 is sealed by the seal ring 2223, so that air leakage and liquid leakage at the joint are avoided. The seal groove 2222 is configured for the seal ring 2223, so as to avoid that the first spigot 2221 and the second spigot 2231 cannot be matched due to the installation of the seal ring 2223; simultaneously, the sealing groove 2222 limits the sealing ring 2223, so that the sealing ring 2223 is not easy to shift when the first spigot 2221 is matched with the second spigot 2231, and the sealing effect is ensured.

In this embodiment, the sealing ring 2223 is a rubber sealing ring 2223, and in other embodiments, the sealing ring 2223 may be made of other suitable materials.

In this embodiment, the air duct assembly 220 further includes a fastener 224, and the fastener 224 simultaneously passes through a portion where the first spigot 2221 overlaps the second spigot 2231 to connect the connection section 222 and the air outlet duct 223. Due to the arrangement of the first spigot 2221 and the second spigot 2231, there is sufficient overlap between the connecting section 222 and the outlet conduit 223 to facilitate connection thereof by the fastener 224.

Specifically, the fastening member 224 may be a connecting member such as a bolt, a screw, a connecting pin, etc., and in this embodiment, a bolt is specifically selected to facilitate connection and disconnection of the connecting section 222 and the air outlet duct 223.

In this embodiment, air duct assembly 220 also includes a buffer pad 225. The buffer gasket 225 is abutted between the opposite sides of the first spigot 2221 and the second spigot 2231, and buffers the connection section 222 and the air outlet pipe 223, so that mutual vibration collision between the connection section 222 and the air outlet pipe 223 caused by the operation of the fan 210 is reduced, noise generated between the connection section 222 and the air outlet pipe 223 is reduced, and meanwhile, influence on connection strength of the connection section 222 and the air outlet pipe 223 caused by mutual vibration is reduced.

In this embodiment, the buffer pad 225 is an annular member with an L-shaped vertical section, and is disposed at an end of the connecting section 222. Specifically, a gasket mounting groove 2224 is formed on a side of the first spigot 2221 facing the inside of the connection section 222, and the gasket mounting groove 2224 penetrates through an end face of the connection section 222 facing one end of the air outlet duct 223 in the horizontal direction. The buffer gasket 225 with the L-shaped cross section is matched with the end surface of the connecting section 222 and the gasket mounting groove 2224, namely, two mutually perpendicular side surfaces of the buffer gasket 225, wherein one side is attached to the end surface of one side of the connecting section 222 facing the air outlet pipeline 223, and the other side is inserted into the gasket mounting groove 2224 and is attached to the bottom wall of the gasket mounting groove 2224 and the second spigot 2231. In addition, in other embodiments, the gasket mounting groove 2224 may also be provided on the second spigot 2231.

Preferably, referring to fig. 2 and 4, an opening edge of the connection section 222 toward one end of the elbow 221 is provided with a third spigot 2225, and an opening edge of the elbow 221 toward one end of the connection section 222 is provided with a fourth spigot 2211 adapted to the third spigot 2225. A sealing ring 2223 and a buffer gasket 225 are also arranged between the third spigot 2225 and the fourth spigot 2211, and the connecting section 222 and the elbow 221 are connected by a fastener 224 through the third spigot 2225 and the fourth spigot 2211 at the same time. The installation structure of the connection section 222 at the connection with the elbow 221 is the same as the installation structure of the connection section 222 at the connection with the air outlet pipe 223, and will not be described again here.

Example 2

The present embodiment provides a smoke blower system, which is substantially the same as that in embodiment 1, except that:

referring to fig. 5 and 6, in the present embodiment, the outer periphery of the connection section 222 is provided with a first protruding portion 2226 protruding laterally, and the outer periphery of the air outlet duct 223 is provided with a second protruding portion 2232 protruding laterally. The second boss 2232 corresponds to the first boss 2226, i.e., the second boss 2232 is disposed directly opposite the first boss 2226.

The second protruding portion 2232 is provided with an ejection screw hole 228, an ejection bolt 226 is inserted into the ejection screw hole 228, and a tail end of the ejection bolt 226 abuts against the first protruding portion 2226. Therefore, when the connecting section 222 and the air outlet pipeline 223 are required to be disassembled, the ejector bolt 226 can be rotated to enable the ejector bolt 226 to eject the connecting section 222 to a direction far away from the air outlet pipeline 223, so that the operation of a user is facilitated.

In addition, in other embodiments, the ejection screw hole 228 may be provided only on the first boss 2226, or may be provided on both the first boss 2226 and the second boss 2232 in a staggered manner.

In this embodiment, the middle portion of the second protruding portion 2232 protrudes toward a direction away from the first protruding portion 2226 to form a bolt mounting portion 227, and the ejection screw hole 228 is formed in the bolt mounting portion 227. Therefore, the second protruding portion 2232 is in a shape with a thick middle and thin periphery, the bolt mounting portion 227 is thicker so as to facilitate the deep ejection screw hole 228, so that the ejection bolt 226 is more firmly and stably matched, and meanwhile, the thinner periphery of the second protruding portion 2232 can effectively save materials and lighten the dead weight of the second protruding portion 2232.

In this embodiment, the first protruding portion 2226 is annular and is fixedly sleeved on the outer periphery of the connecting section 222; the second protruding portion 2232 is annularly and fixedly sleeved on the outer periphery of the air outlet pipe 223. So that the first boss 2226 is a whole, the forces of the ejector bolt 226 acting on each point of the first boss 2226 can be distributed to the annular first boss 2226, so as to avoid deformation caused by stress concentration in a partial area of the first boss 2226. Meanwhile, the second protruding part 2232 is a whole, and the force of the ejection bolt 226 acting on each point of the second protruding part 2232 can be distributed to the annular second protruding part 2232, so that deformation caused by stress concentration of partial area of the second protruding part 2232 is avoided. In other embodiments, the first protruding portion 2226 may be a plurality of protruding portions distributed on the connection section 222, and the second protruding portion 2232 may be a plurality of protruding portions distributed on the air outlet duct 223.

Preferably, the outer circumference of the end of the connection section 222 near the elbow 221 is provided with a third protruding portion 2227, and the outer circumference of the end of the elbow 221 near the connection section 222 is provided with a fourth protruding portion 2212 facing the third protruding portion 2227. The fourth protruding portion 2212 is provided with an ejection screw hole 228, and an ejection bolt 226 is inserted into the ejection screw hole 228. The above structure and function are the same as those at the first and second protrusions 2226 and 2232, and will not be described here again.

Example 3

Referring to fig. 7, the present embodiment provides a smoke blower system, which is substantially the same as that in embodiment 1, except that:

in this embodiment, the air outlet of the blower 210 is disposed towards the lower side plate of the cabinet. The blower 210 is fixed to the rear inner wall of the cabinet by a blower bracket 230, and the installation wall surface 100 is the lower inner wall of the cabinet.

In this embodiment, one end of the elbow 221 faces the air outlet of the fan 210, and the other end is horizontally arranged parallel to the installation wall surface 100. The connecting section 222 and the air outlet pipe 223 are attached to the installation wall surface 100. By adopting the arrangement mode, the installation wall surface 100 can upwards support the air duct assembly 220, the installation of the air duct assembly 220 is facilitated, and the installation strength of the air duct assembly 220 is improved.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims (10)

1. The oil smoke fan system is used for a cabinet, an inner cavity of the cabinet is provided with a mounting wall surface for mounting the oil smoke fan system, the oil smoke fan system comprises a fan and an air pipe assembly, and the air pipe assembly is connected with the fan, and the oil smoke fan system is characterized in that the air pipe assembly comprises an elbow, a connecting section and an air outlet pipeline; one side of the elbow bends towards the direction of the installation wall surface and is attached to the installation wall surface, one end of the elbow is connected with an air outlet of the fan, and the connecting section is detachably connected between the elbow and the air outlet pipeline; the air outlet pipeline and one side of the connecting section, which faces the installation wall surface, are both planar and are attached to the installation wall surface.

2. The oil smoke blower system according to claim 1, wherein the air outlet pipe is a square pipe, and the length of one side of the air outlet pipe attached to the installation wall surface is longer than the length of one side of the air outlet pipe perpendicular to the installation wall surface on a tangential plane perpendicular to the extending direction of the air outlet pipe.

3. The oil smoke blower system of claim 1 wherein the end of the connecting section facing the air outlet pipe is provided with a first spigot and the end of the air outlet pipe facing the connecting section is provided with a second spigot which is matched with the first spigot.

4. A smoke blower system according to claim 3, wherein said first spigot is recessed in a direction away from said second spigot to form a seal groove, a seal ring is embedded in said seal groove, said seal ring being in simultaneous abutment with said first spigot and said second spigot.

5. A range hood system according to claim 3, wherein said duct assembly further comprises a fastener that passes through both said first spigot and said second spigot overlapping portions.

6. A range hood system according to claim 3, wherein the duct assembly further comprises a buffer spacer abutting between the opposite sides of the first and second spigots.

7. A smoke ventilator system according to claim 3, wherein the outer periphery of the connecting section is provided with a first protruding portion protruding laterally outwards, the outer periphery of the air outlet pipe is provided with a second protruding portion protruding laterally outwards, the second protruding portion corresponds to the first protruding portion, one of the first protruding portion and the second protruding portion is provided with an ejection screw hole, an ejection bolt is arranged in the ejection screw hole in a penetrating mode, and the tail end of the ejection bolt abuts against the other of the first protruding portion and the second protruding portion.

8. The smoke blower system of claim 7, wherein the middle of the second boss protrudes away from the first boss to form a bolt mounting portion, and the ejection screw hole is formed in the bolt mounting portion.

9. The smoke blower system of claim 7, wherein said first protrusion is annular and is fixedly sleeved on the periphery of said connection section;

and/or the second bulge part is annular and fixedly sleeved on the periphery of the air outlet pipeline.

10. A lampblack blower system according to claim 3, wherein the air duct assembly further comprises a transition head connected between the blower and the elbow, one end of the transition head being adapted to the air outlet of the blower, and one end of the transition head remote from the blower being adapted to the elbow.