CN212091276U - Filter screen and range hood - Google Patents

Abstract

The utility model provides a filter screen and a range hood, which relates to the technical field of kitchen appliances, wherein the filter screen comprises a coaming and a top plate, the two ends of the coaming along the circumferential direction are fixedly connected, and the top plate is fixedly connected with the coaming; the range hood comprises the filter screen. In this filter screen, the bounding wall only has along the both ends fixed connection of its circumference, and hookup location is few to can solve among the prior art with the bounding wall to the roof with roll-over then carry out the higher problem of cost of manufacture that welding brought with two adjacent bounding walls with the roof with one side.

Description

Filter screen and range hood

Technical Field

The utility model belongs to the technical field of the kitchen appliance technique and specifically relates to a filter screen and range hood are related to.

Background

In the prior art, the filter screen of the range hood is generally manufactured by adopting an integral stretch forming method, but although the filter screen produced by the integral stretch forming method has strong part unity and is not spliced, the method cannot form a right angle or a negative angle, namely, the angle between the coaming 100 'and the top plate 200' is required to be larger than 90 degrees. For this reason, the filter screen in the prior art is manufactured by a method of four-side bending, as shown in fig. 1, folding four enclosing plates 100 ' to the same side of a top plate 200 ' and then welding two adjacent enclosing plates 100 ', which can form a right angle or a negative angle, but the manufacturing cost is relatively high.

SUMMERY OF THE UTILITY MODEL

A first object of the present invention is to provide a filter net to alleviate the higher technical problem of the cost of manufacture of the filter net that exists among the prior art.

The utility model provides a filter screen, including bounding wall and roof, the both ends fixed connection of its circumference is followed to the bounding wall, the roof with bounding wall fixed connection.

Further, the enclosing plate comprises a first main body, and a first flange edge is arranged at one end, connected with the top plate, of the first main body; the top plate comprises a second main body and a flange arranged on the periphery of the second main body, and the first flange edge is clamped between the second main body and the flange.

Furthermore, the two ends of the enclosing plate along the circumferential direction of the enclosing plate are respectively provided with a plurality of riveting sheets and a plurality of grooves, and the riveting sheets and the grooves are riveted in a one-to-one correspondence mode.

Further, the rivet sheet is in interference riveting with the groove.

Further, the two ends of the coaming along the circumferential direction of the coaming are welded.

Further, the two ends of the enclosing plate along the circumferential direction are fastened through fasteners.

Further, one end of the enclosing plate, which is far away from the first flange edge, is provided with a second flange edge, and the second flange edge is used for being connected with the smoke collecting cover.

Further, the second flange edge is provided with a plurality of gaps, and the gaps are located at different corners of the enclosing plate.

Furthermore, a plurality of protrusions are arranged on one side, close to the first flange edge, of the flanging.

The utility model provides a filter screen can produce following beneficial effect:

the utility model provides a filter screen, including bounding wall and roof, and the bounding wall only along the both ends fixed connection of its circumference, hookup location is few to can solve among the prior art with the bounding wall to the roof with one side roll-up then carry out the higher problem of cost of manufacture that the welding brought adjacent two bounding walls.

A second object of the present invention is to provide a range hood to alleviate the technical problem of high manufacturing cost of the filter screen existing in the prior art.

The utility model provides a range hood, include the filter screen.

The utility model provides a range hood, including the whole beneficial effect of foretell filter screen, the event is no longer repeated here.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an expanded structure of a filter screen provided in the background art;

fig. 2 is a partially expanded schematic view of a first enclosing plate of a filter screen according to an embodiment of the present invention;

fig. 3 is a schematic view of a first structure of a filter screen according to an embodiment of the present invention;

fig. 4 is a partially expanded schematic view of a second enclosure of a filter screen according to an embodiment of the present invention;

fig. 5 is a schematic view of a second structure of a filter screen according to an embodiment of the present invention;

fig. 6 is a schematic view of a partial structure of a filter screen according to an embodiment of the present invention;

fig. 7 is a schematic view illustrating a manufacturing step of a first enclosure plate of a filter screen according to an embodiment of the present invention;

fig. 8 is a schematic view illustrating a manufacturing step of a second enclosure plate of the filter screen according to an embodiment of the present invention;

fig. 9 is a schematic view illustrating a manufacturing process of a top plate of a filter screen according to an embodiment of the present invention;

fig. 10 is a schematic view illustrating a manufacturing process of a filter screen according to an embodiment of the present invention;

fig. 11 is a second schematic view illustrating a manufacturing process of a filter screen according to an embodiment of the present invention;

fig. 12 is a sectional view of a part of the structure of fig. 11 along the X direction of the turning edge.

Icon:

100' -coaming; 200' -the top plate;

100-enclosing plates; 110-a first body; 120-riveting sheets; 130-a groove; 140-a first flanged edge; 150-a second flange edge; 151-notch; 160-a fastener; 170-welding seams;

200-a top plate; 210-a second body; 220-flanging; 221-projection.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

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

In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Example one

In the present embodiment, the two ends of the surrounding plate 100 along the circumferential direction are fixedly connected, and the top plate 200 is fixedly connected with the surrounding plate 100.

The filter screen that this embodiment provided, including bounding wall 100 and roof 200, and bounding wall 100 only has along the both ends fixed connection of its circumference, and hookup location is few to can solve among the prior art with the bounding wall to the roof with the same one side jack-up then with two adjacent bounding walls carry out the higher problem of cost of manufacture that the welding brought.

Fig. 2 is a schematic partially expanded view of a coaming of the filter screen provided in this embodiment, and fig. 3 is a schematic structural view of the filter screen provided in this embodiment.

Specifically, in the present embodiment, as shown in fig. 2 and 3, a plurality of rivet pieces 120 and a plurality of grooves 130 are respectively provided at both ends of the shroud plate 100 along the circumferential direction thereof, and the rivet pieces 120 and the grooves 130 are riveted in one-to-one correspondence. That is, in this embodiment, the two ends of the shroud 100 along the circumferential direction thereof are connected by riveting without welding seams, thereby greatly reducing the manufacturing cost of the shroud 100 and the filter screen.

Specifically, in the present embodiment, the rivet sheet 120 is interference-riveted with the groove 130. So set up to make difficult appearance not hard up between the two, strengthened the fastness of connection between the two.

Specifically, in this embodiment, the rivet plate 120 has a large head and a small bottom, while the recess 130 has a large bottom and a small neck. However, in other embodiments of the present application, the shapes of the rivet 120 and the groove 130 are not limited to the above-described forms as long as they can be rivet-fitted to fixedly connect both ends of the shroud 100 along its circumferential direction.

Specifically, in this embodiment, the shroud 100 is elongated after deployment.

Specifically, in this embodiment, the plurality of riveting sheets 120 are disposed at intervals at one end of the enclosure 100 along the circumferential direction thereof, the plurality of grooves 130 are disposed at intervals at the other end of the enclosure 100 along the circumferential direction thereof, and the riveting sheets 120 disposed at intervals and the grooves 130 disposed at intervals are in interference fit to further enhance the connection of the enclosure 100 along the circumferential two ends thereof, so that the connection of the enclosure 100 along the circumferential two ends thereof is firmer.

Specifically, in the present embodiment, the shroud 100 is provided with a mesh. The shape of the mesh is a diamond, however, in other embodiments of the present application, the shape of the mesh may also be a circle, a hexagon, a square, or the like, which is not particularly limited in the present application.

Fig. 6 is a schematic view of a partial structure of the filter screen provided in this embodiment.

Specifically, in the present embodiment, as shown in fig. 6, both ends of the shroud 100 in the circumferential direction thereof are also fastened by fasteners 160. This arrangement enhances the fastening of the shroud 100 at both ends in its circumferential direction and the structural stability of the shroud 100.

Specifically, in this embodiment, the two ends of the shroud 100 along the circumferential direction thereof are respectively formed with a part of the through hole, the two parts of the through hole form a complete through hole, and the fastening member 160 plays a role of reinforcing the connection of the shroud 100 along the circumferential direction thereof by simultaneously clamping the two ends of the shroud 100 along the circumferential direction thereof.

More specifically, in this embodiment, the fastener 160 is a blind rivet nut. However, in other embodiments of the present application, the fastener 160 is not limited to a blind rivet nut as long as it can reinforce the connection of both ends of the shroud 100 in its circumferential direction.

In this embodiment, the blind rivet nut can also fix the filter screen to the smoke collecting hood while reinforcing both ends of the shroud 100 along the circumferential direction thereof. That is, during the installation filter screen, can make the rivet nut pass the perforation on the mounting hole on the collection petticoat pipe and the filter screen, so set up, the rivet nut can enough be fixed in the collection petticoat pipe with the filter screen, has also effectively avoided bounding wall 100 simultaneously along the separation at its circumference both ends, plays the reinforcing action.

Specifically, the shroud 100 includes a first body 110, and one end of the first body 110 connected to the top plate 200 is provided with a first flange 140; the top plate 200 includes a second body 210 and a flange 220 provided at the periphery of the second body 210, the second body 210 and the flange 220 clamping the first flange 140 therebetween.

Specifically, in the present embodiment, the end of the shroud 100 remote from the first flange 140 is provided with a second flange 150, and the second flange 150 is used for connecting with the fume collecting hood.

Specifically, in the present embodiment, the second flange edge 150 is provided with a plurality of notches 151, and the plurality of notches 151 are located at different corners of the shroud 100.

Fig. 10 is a schematic view of a manufacturing step of the filter screen according to this embodiment, fig. 11 is a schematic view of a manufacturing step of the filter screen according to this embodiment, and fig. 12 is a sectional view of a partial structure along the X direction of the turning edge in fig. 11.

Specifically, in the present embodiment, the flange 220 is provided with a plurality of protrusions 221 on a side thereof adjacent to the first flange 140. The protrusion 221 contacts the first flange 140 to limit the first flange 140, so that the first flange 140 can be effectively prevented from being separated.

Specifically, the structure of the protrusion 221 in this embodiment has two types, and in the view of fig. 10, the cross section of the protrusion 221 is arc-shaped; in the perspective of fig. 11 and 12, the projection 221 has a rectangular cross section. However, in other embodiments of the present application, the shape of the protrusion 221 may be in other shapes as long as it can limit the detachment of the first flange 140, and the present application does not limit the specific structural form of the protrusion 221.

Specifically, in this embodiment, the plurality of protrusions 221 are disposed at intervals on the flange 220, the plurality of recesses are disposed at intervals on the side of the first flange 140 contacting the flange 220, and the plurality of recesses and the plurality of protrusions 221 are in one-to-one correspondence, so that the limitation on the first flange 140 is further strengthened, and the first flange 140 is further prevented from being separated; in addition, such an arrangement also improves the firmness of the connection between the shroud 100 and the top plate 200 and the structural stability of the screen.

The filter screen provided by the embodiment can be manufactured by the following method, and the method comprises the following steps: bending the first substrate with meshes, and fixedly connecting the head end and the tail end of the first substrate to form a surrounding plate 100; manufacturing a top plate 200; the shroud 100 and top plate 200 are fixedly attached to form a screen. The manufacturing method of the filter screen comprises the steps of manufacturing the enclosing plate 100 and the top plate 200 respectively, and then fixedly connecting the enclosing plate 100 and the top plate 200 to form the filter screen, wherein the enclosing plate 100 only needs to be fixedly connected with the head end and the tail end of the first substrate, and the connecting positions are few, so that the problem that in the prior art, the manufacturing cost is high when the enclosing plates are folded towards the same side of the top plate and then two adjacent enclosing plates are welded can be solved.

Specifically, in this embodiment, the first substrate is in a long strip shape, and the head end and the tail end of the first substrate refer to two ends of the first substrate in the length direction.

Fig. 7 is a schematic diagram illustrating a manufacturing step of a coaming of the filter screen provided in this embodiment.

As shown in fig. 7, the step of making the shroud 100 includes: before the first substrate is bent, a plurality of riveting sheets 120 and a plurality of grooves 130 are respectively arranged at the head end and the tail end of the first substrate, and the riveting sheets 120 correspond to the grooves 130 one by one; after the first substrate is bent, the plurality of rivet pieces 120 are riveted in one-to-one correspondence to the plurality of grooves 130. That is, the filter screen of this embodiment is formed through connecting the mode with the riveting of the head and the tail both ends of first base plate, need not the welding, does not have the welding seam to greatly reduced the cost of manufacture of bounding wall 100 and filter screen.

Specifically, the punching area of the first substrate is regular, a high-speed progressive punching method can be adopted during punching, the efficiency is high, and meanwhile, the cost of the die can be reduced.

Specifically, the step of manufacturing the shroud 100 further includes: and after riveting the head end and the tail end of the first substrate, reinforcing the head end and the tail end of the first substrate by using the rivet nuts. This arrangement enhances the connection between the first and second ends of the first substrate and the structural stability of the shroud 100.

Specifically, when the enclosure 100 is manufactured, a part of the through hole is formed at the head end and the tail end of the first substrate, and the two part of the through hole forms a complete through hole after the head end and the tail end of the first substrate are riveted, and the fastener 160 reinforces the connection of the head end and the tail end of the first substrate by clamping the head end and the tail end of the first substrate simultaneously.

Specifically, the step of making the shroud 100 includes: before the first base plate is bent and after the rivet piece 120 and the groove 130 are formed, a first flange 140 is formed at one end of the first base plate for connection with the top plate 200.

Specifically, the step of manufacturing the shroud 100 further includes: before the first substrate is bent, forming a plurality of notches 151 at one end of the first substrate, which is far away from the first flange edge 140, wherein the plurality of notches 151 are located at different corners of the enclosure 100 after the enclosure 100 is manufactured; a second flange 150 is formed on the end of the first substrate away from the first flange 140, and the gap 151 is located on the second flange 150. This arrangement effectively avoids the second flange 150 from cracking at the corners when bent to form the corners of the shroud 100.

Specifically, the first flange edge 140 and the second flange edge 150 may be formed simultaneously, thereby enabling further efficiency improvement.

In this embodiment, the shape of the enclosing plate 100 is quadrilateral, and the step of manufacturing the enclosing plate 100 further includes: bending the first substrate to form two corners of the enclosure 100 near the rivet 120 and the groove 130; the first base plate is bent to form the other two corners of the shroud 100.

In summary, the steps of manufacturing the shroud 100 of the filter screen of the present embodiment may include:

s110: a plurality of riveting sheets 120 and a plurality of grooves 130 are respectively arranged at the head end and the tail end of the first substrate, and the plurality of riveting sheets 120 correspond to the plurality of grooves 130 one by one; forming a plurality of notches 151 at one end of the first substrate, which is used for being connected with the top plate 200, wherein the notches 151 are located at different corners of the enclosure 100 after the enclosure 100 is manufactured;

s120: punching a hole in a main body portion of a first substrate;

s130: forming a first flange edge 140 at an end of the first substrate away from the gap 151; a second flange edge 150 is formed at one end of the enclosing plate 100 provided with the notch 151, the notch 151 is located on the second flange edge 150, and the second flange edge 150 is used for being connected with the smoke collecting cover;

s140: bending the first substrate to form two corners of the enclosure 100 near the rivet 120 and the groove 130;

s150: bending the first substrate to form the other two corners of the enclosure 100;

s160: riveting the plurality of riveting sheets 120 and the plurality of grooves 130 in a one-to-one correspondence;

s170: fasteners 160 are used to reinforce both ends of the shroud 100 along its circumference.

Fig. 9 is a schematic diagram of a manufacturing process of a top plate of the filter screen according to this embodiment.

As shown in fig. 9, the step of fabricating the top plate 200 includes:

s210: blanking to obtain a second substrate;

s220: a flange 220 is formed at the periphery of the second substrate, the flange 220 being used to press the first flange 140 to the first body 110.

As shown in fig. 10 and 11, the step of fixedly connecting the shroud 100 and the top plate 200 may include:

s310: placing the first flanged edge 140 within the flange 220;

s320: making the included angle between the flange 220 and the main body portion of the second substrate acute; specifically, the included angle between the turned-up edge 220 and the second main body 210 may be 45 ° -60 °;

s330: the angle between cuff 220 and the main portion of the second substrate is then brought to 0 deg. and both are squeezed. Further, the burring 220 and the body portion of the second base may be pressed with a large force such that a recess corresponding to the protrusion 221 is formed at the side of the first flange 140 contacting the burring 220 while the protrusion 221 is formed at the burring 220.

The present embodiment further provides a range hood, which includes the above-mentioned filter screen, and has all the beneficial effects of the above-mentioned filter screen, and therefore, the description thereof is omitted here.

Example two

Fig. 4 is a schematic partially expanded view of a coaming of the filter screen provided in this embodiment, and fig. 5 is a schematic structural view of the filter screen provided in this embodiment.

This embodiment also provides a screen, as shown in fig. 4 and 5, in which the shroud 100 is welded along both ends in its circumferential direction. That is, compared with the filter screen provided in the first embodiment, the filter screen provided in this embodiment is different only in that: the shroud 100 is not provided with the rivet 120 or the groove 130 at both ends along its circumferential direction, but is directly welded together. The shroud plate 100 of the filter screen provided by the embodiment only has one welding seam 170, the number of the welding seams 170 is small, and the manufacturing cost is low.

Fig. 8 is a schematic diagram of a step of manufacturing a coaming of the filter screen provided in this embodiment.

As shown in fig. 8, the step of manufacturing the enclosure 100 of the filter screen includes: after the first substrate is bent, the head end and the tail end of the first substrate are welded. That is, compared with the filter screen manufacturing method provided in the first embodiment, the filter screen manufacturing method provided in the present embodiment is different only in that: when the enclosure plate 100 is manufactured, the head end and the tail end of the enclosure plate 100 are welded without forming the rivet pieces 120 and the grooves 130 at the head end and the tail end of the enclosure plate 100 respectively. The coaming 100 manufactured by the method only has one welding seam 170, and the number of the welding seams 170 is small, so that the manufacturing cost generated by welding can be reduced, and the total cost is reduced.

The present embodiment also provides a range hood, which includes the above-mentioned filter screen, and has all the benefits of the above-mentioned filter screen, and therefore, the description thereof is omitted here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a filter screen, its characterized in that includes bounding wall (100) and roof (200), both ends fixed connection along its circumference is followed to bounding wall (100), roof (200) with bounding wall (100) fixed connection.

2. The filter screen according to claim 1, wherein the shroud (100) is provided at both ends in the circumferential direction thereof with a plurality of rivet pieces (120) and a plurality of grooves (130), respectively, and the rivet pieces (120) and the grooves (130) are riveted in one-to-one correspondence.

3. The filter screen of claim 2, wherein the rivet tabs (120) are interference riveted with the grooves (130).

4. The filter screen of claim 1, wherein the shroud (100) is welded along both circumferential ends thereof.

5. The filter screen according to any of claims 2-4, wherein the shroud (100) is fastened at both ends along its circumference by fasteners (160).

6. The filter screen according to claim 1, wherein the shroud (100) comprises a first body (110), wherein the end of the first body (110) connected to the top plate (200) is provided with a first flanged rim (140); the top plate (200) comprises a second main body (210) and a flange (220) arranged on the periphery of the second main body (210), and the first flange edge (140) is clamped between the second main body (210) and the flange (220).

7. The filter screen of claim 6, wherein the shroud (100) is provided with a second flanged edge (150) along an end remote from the first flanged edge (140), the second flanged edge (150) being for connection with a smoke cage.

8. The screen according to claim 7, wherein the second flanged edge (150) is provided with a plurality of indentations (151), and wherein the plurality of indentations (151) are located at different corners of the shroud (100).

9. The filter screen according to any of claims 6 to 8, wherein the flange (220) is provided with a plurality of protrusions (221) on a side thereof adjacent to the first flange edge (140).

10. A range hood, characterized by comprising the screen of any one of claims 1-9.

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