CN219345590U - Flue check valve - Google Patents

Abstract

The utility model discloses a flue check valve, which comprises a mounting seat, a reducing pipe and a wind deflector, wherein the mounting seat is provided with a reducing pipe; the installation seat is arranged on the wall surface, the middle part of the installation seat is provided with an installation pipe penetrating through the installation seat, one end of the installation pipe far away from the wall surface is connected with a reducer pipe, and one end of the reducer pipe far away from the installation seat is connected with a smoke exhaust pipe; a sliding groove is formed in the inner wall of one end, far away from the wall surface, of the mounting tube, a connecting column is arranged on the outer side of the reducer tube, and the connecting column can slide into the sliding groove to connect the mounting tube with the reducer tube; a wind shielding ring is arranged in the mounting pipe; the top of the wind shield is rotationally connected with the top of the wind shield ring far away from one side surface of the reducer pipe, and can be rotated upwards to open or rotated downwards to seal the opening in the middle of the wind shield ring. In the use of the wind shield, the wind of the range hood blows from the inner side and opens the opening at the wind shield ring, the oil smoke is discharged outwards, after the range hood is closed, the wind shield automatically rotates downwards under the action of gravity, and the opening at the wind shield ring is closed, so that the outside is prevented from entering indoor air filling or peculiar smell.

Description

Flue check valve

Technical Field

The utility model relates to the technical field of ventilation equipment, in particular to a flue check valve.

Background

With the development of time, the living standard of people is improved, and the range hood is used as a practical kitchen device and enters thousands of households. In the use of the range hood, the smoke outlet of the range hood cannot be plugged, so that external wind can be caused to flow into the room from the smoke outlet, and if foreign odor exists in the outside, the external wind can be transmitted into the room from the smoke outlet of the range hood, and the indoor environment is influenced.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to provide the flue check valve, which solves the problems that in the prior art, the outlet of the range hood is not blocked, so that the air is easily filled into a room from the outlet, or the outside peculiar smell is transferred into the room from the outlet, and the indoor environment is polluted.

A flue check valve comprises a mounting seat, a reducer pipe and a wind deflector; the installation seat is arranged on a wall surface, an installation pipe penetrating through the installation seat is arranged in the middle of the installation seat, one end of the installation pipe far away from the wall surface is connected with the reducer pipe, and one end of the reducer pipe far away from the installation seat is connected with the smoke exhaust pipe;

a sliding groove is formed in the inner wall of one end, far away from the wall surface, of the mounting pipe, a connecting column is arranged on the outer side of the reducer pipe, and the connecting column can slide into the sliding groove to connect the mounting pipe with the reducer pipe;

a wind shielding ring is arranged in the mounting pipe; the top of the wind shield is rotationally connected with the top of the wind shield ring far away from one side surface of the reducer pipe, and the wind shield can be rotated upwards to open or rotated downwards to seal the opening in the middle of the wind shield ring.

Further, a reinforcing rib is arranged on one side surface, far away from the reducer pipe, of the mounting seat, and the reinforcing rib is arranged in a honeycomb mode.

Further, a protective tube is arranged on one side face of the mounting seat, which is close to the reducer tube, and the protective tube is arranged on the outer side of one end, far away from the wall face, of the mounting tube.

Further, a side surface of the mounting seat, which is close to the reducer pipe, is further provided with a mounting groove, the mounting pipe is arranged on the outer side of the protection pipe, and the mounting groove is used for mounting the level meter.

Further, one end of the reducing pipe is provided with a first connecting end which is used for being connected with the smoke exhaust pipe, and the outer diameter of the first connecting end is matched with the inner diameter of the pipe orifice of the smoke exhaust pipe.

Further, the sliding grooves are L-shaped, the number of the sliding grooves is 2, and the sliding grooves are arranged on the mounting tube in a central symmetry mode.

Further, the wind shield comprises a first plate body, a second plate body and a sealing ring;

the top of the first plate body is rotationally connected with the top of the wind shielding ring; one side surface of the first plate body is connected with the second plate body; the sealing ring is arranged between the second plate body and the first plate body;

the first plate body is provided with a slot which is used for being connected with the bulge arranged on the second plate body;

the slots comprise a first slot and a second slot arranged outside the first slot; the inner contour of the sealing ring is matched with the outer contour of the second slot;

the protrusions include a first protrusion and a second protrusion; the first bulge is matched with the first slot; the second protrusion is adapted to the second slot.

Further, the second plate body is far away from the peripheral side face of one side of the first plate body and is in rounded transition or inclined arrangement.

Further, the top of the wind deflector is inclined towards one end close to the reducer pipe, so that the top of the wind deflector is closer to the reducer pipe than the bottom.

Further, the device also comprises a first magnet and a second magnet; the first magnet is arranged at the bottom of the wind shielding ring; the second magnet is arranged at the bottom of one side surface of the wind shield, which is far away from the wind shield ring.

The beneficial effects are that: the reducer pipe can be pre-installed on the smoke exhaust pipe of the range hood, and the reducer pipe is simply and conveniently connected with the mounting seat through the arrangement of the connecting column and the sliding groove, so that the smoke exhaust pipe can be communicated with the mounting pipe on the mounting seat; the wind shield arranged in the mounting seat can be blown by wind generated in the using process of the range hood from one side close to the reducer pipe and rotates upwards in the using process, so that an opening at the wind shield ring is opened, and the range hood is smoothly discharged outwards; after the range hood is closed, the wind shield automatically rotates downwards under the action of gravity and closes the opening at the wind shield ring, so that the outside is prevented from blowing air indoors or peculiar smell is prevented from being transmitted into a room from the oil smoke pipe. In addition, install the sealing washer and the close laminating of deep bead in the outer periphery of second board together, sealed effect is better.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of a reducer pipe according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a wind deflector according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a first plate structure according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a second plate structure according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a seal ring according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram illustrating the connection between a first plate and a second plate according to an embodiment of the present utility model;

fig. 8 is a schematic view of a first magnet installation according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a mounting base; 11. installing a pipe; 111. a chute; 12. a wind shielding ring; 13. a protective tube; 14. Reinforcing ribs; 15. a mounting groove; 2. a reducer pipe; 21. a first connection end; 22. a second connection end; 23. a connecting column; 3. a wind deflector; 31. a first plate body; 311. a first slot; 312. a second slot; 32. a second plate body; 321. a first protrusion; 322. a second protrusion; 33. a seal ring; 41. a first magnet; 42. and a second magnet.

Description of the embodiments

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

A flue check valve as shown in fig. 1-8 comprises a mounting seat 1, a reducer pipe 2 and a wind deflector 3.

The mounting seat 1 is square, holes are formed in four corners of the mounting seat 1, the holes in the four corners of the mounting seat 1 are used for screws to penetrate through and mount the mounting seat 1 on a wall surface, and the mounting seat is vertically mounted on the wall of a building where a smoke outlet is formed; the middle part of the mounting seat 1 is horizontally provided with a mounting pipe 11 penetrating through the mounting seat 1, one end of the mounting pipe 11 is connected with the reducer pipe 2, and one end of the reducer pipe 2 away from the mounting seat is connected with the smoke exhaust pipe; the middle part of the installation tube 11 is provided with a wind shielding ring 12, and the outer edge of the wind shielding ring 12 is fixedly connected with the inner wall of the installation tube 11; the top of the wind shield 3 is rotatably connected with the top of the wind shield ring 12 far away from one side surface of the reducer pipe 2, and can be rotated upwards to open or rotated downwards to close the opening in the middle of the wind shield ring 12.

A chute 111 is arranged on the inner wall of one end of the installation tube 11, and the chute 111 is L-shaped; the number of the sliding grooves 111 is 2, and two sliding grooves 111 are provided on the installation tube 11 in a center-symmetrical manner. A protective tube 13 for protecting the mounting tube 11 horizontally extends from one side surface of the mounting seat 1, which is close to the reducer tube 2; the protective tube 13 is provided outside the end of the mounting tube 11 remote from the wall surface. Preferably, a mounting groove 15 is further formed in one side surface, close to the reducer pipe 2, of the mounting seat 1, the mounting groove 15 is formed in the outer side of the protection pipe 13, and a level gauge is fixedly mounted in the mounting groove 15 and can be used for better mounting of the mounting seat 1; a reinforcing rib 14 is arranged on one side surface of the mounting seat 1 far away from the reducer pipe 2, the reinforcing rib 14 is arranged on the outer side of one end of the mounting pipe 11 close to the wall, and the reinforcing ribs 14 are distributed in a honeycomb shape.

The outer diameter of the reducer pipe 2 is matched with the inner diameter of the mounting pipe 11, and two connecting columns 23 are symmetrically arranged at the center of the outer side of the reducer pipe 2; the connecting column 23 can slide into the sliding groove 111 along the axial direction of the mounting pipe 11 from the opening on the sliding groove 111 arranged on the inner wall of the mounting pipe 11, and then the connecting column 23 on the reducing pipe 2 slides in the sliding groove 111 along the circumferential direction of the mounting pipe 11 by rotating the reducing pipe 2 so as to be locked with the mounting pipe 11; the connection between the connecting column 23 and the chute 111 is positive and negative locking. One end of the reducer pipe 2 is provided with a first connecting end 21, the outer diameter of the first connecting end 21 is matched with the inner diameter of a smoke exhaust pipe of the range hood, and the reducer pipe can be inserted into an opening of the smoke exhaust pipe and is fixedly connected with the smoke exhaust pipe; the other end of the reducer pipe 2 is provided with a second connecting end 22, and the second connecting end 22 can be tightly clung to the inner side wall of the wind deflector 12 for extension; the outer diameter of the second connection end 22 is adapted to the inner diameter of the end of the wind deflector 12 remote from the wall for a nested connection with the wind deflector 12.

The wind deflector 3 includes a first plate body 31, a second plate body 32, and a seal ring 33 mounted between the first plate body 31 and the second plate body 32.

A slot is formed in one side surface of the first plate body 31, and a protrusion matched with the slot is formed in one side surface of the second plate body 32; after the bulges are connected with the slots, the bulges are fixed by ultrasonic welding, so that the first plate body 31 and the second plate body 32 are connected; after the first plate 31 and the second plate 32 are connected, a groove is formed between the outer edge of the second plate 32 and the first plate 31; the inner contour of the sealing ring 33 is matched with the outer contour of the slot on the first plate body 31; the sealing ring 33 is sleeved outside the slot before the first plate 31 is connected with the second plate 32, and is fixed at the groove through the connection and extrusion of the first plate 31 and the second plate 32; the width of the groove is adapted to the thickness of the sealing ring 33 or slightly smaller than the thickness of the sealing ring 33, so that the first plate 31 and the second plate 32 can clamp the sealing ring 33. Preferably, the slots include a first slot 311 and a second slot 312; the first slot 311 is circular, the second slot 312 is arranged outside the first slot 311, and the inner contour of the sealing ring 33 is matched with the outer contour of the second slot 312; the protrusions include a first protrusion 321 shape-fitted to the first slot 311 and a second protrusion 322 shape-fitted to the second slot 312; the first protrusion 321 and the second protrusion 322 are inserted into the first slot 311 and the second slot 312 to be positioned, and the installation of the wind deflector 3 is better completed.

The first plate 31 is rotatably connected with the top of the wind deflector 25; the top of the first plate body 31 is provided with a connecting shaft, the top of the wind deflector 12 far away from one side surface of the reducer pipe 2 is extended to form two connecting pairs, the two connecting pairs are symmetrically arranged, and the connecting pairs are provided with clamping grooves which are used for being connected with the connecting shaft; the connecting pair and the connecting shaft are used for rotationally connecting the first plate 31 and the wind deflector 12, so that the first plate 31 can rotate upwards or downwards by taking the linear position of the connecting shaft as a rotating shaft.

The outer contour of one side surface of the second plate body 32 is matched with the inner contour of the opening of the wind shielding ring 12, and can be inserted into the opening of the wind shielding ring 12; the peripheral side surface of the second plate body 32 far away from one side of the first plate body 31 is obliquely arranged or in rounded transition, so that the second plate body 32 can be better inserted into the opening in the middle of the wind guard ring 12, and the opening is conveniently plugged.

The bottom of one side surface of the first plate body 31 far away from the second plate body 32 is provided with a first magnet 41, and the lower part of the wind shield ring 12 is provided with a second magnet 42; the first magnet 41 and the second magnet 42 are used for increasing magnetic attraction and better automatically closing the opening on the basis of automatically rotating downwards to close the hole in the middle of the wind shielding ring 12 under the action of gravity after the wind shielding plate 3 rotates upwards. Preferably, the top of the wind shielding ring 12 is inclined towards one end close to the reducer pipe 2, and the bottom of the inclined wind shielding ring 12 is closer to the mounting seat 1 than the top, namely the top of the inclined wind shielding ring 12 is closer to the reducer pipe 2 than the bottom, so that the wind shielding ring 12 better seals the hole in the middle of the wind shielding ring 12 under the action of gravity and magnetic force; preferably, the angle between the wind shielding sheet 3 and the horizontal plane is 30-45 degrees.

In the embodiment, the reducer pipe 2 can be pre-installed on the smoke exhaust pipe of the range hood, and the reducer pipe 2 is simply and conveniently connected with the mounting seat 1 through the arrangement of the connecting column 23 and the sliding groove 111, so that the smoke exhaust pipe can be communicated with the mounting pipe 11 on the mounting seat 1; the wind shield 3 arranged in the mounting seat 1 can be blown by wind generated in the using process of the range hood from one side close to the reducer pipe 2 and rotates upwards in the using process, so that an opening at the wind shield ring 12 is opened, and the range hood is smoothly discharged outwards; after the range hood is closed, the wind shield 3 automatically rotates downwards under the action of gravity and closes the opening at the wind shield ring 12, so that the outdoor air filling or peculiar smell is prevented from being transmitted into a room from the oil smoke pipe. In addition, the sealing ring 33 arranged on the outer periphery of the second plate body 32 is closely attached to the wind deflector 12, so that the sealing effect is better.

The wind shield 3 is of a split design, all parts of the wind shield 3 can be manufactured independently, and the manufacturing process is simple; meanwhile, the sealing ring 33 is clamped by the first plate 31 and the second plate 32, so that the fixing is reliable and the falling off is not easy; the second plate 32 can be inserted into the opening of the wind deflector 12, so that the blocking effect is good, the contact time between the sealing ring 33 and the air flow in the flue can be reduced, the corrosion of the sealing ring 33 is slowed down, and the service life of the device is prolonged.

The working process comprises the following steps: after the device is installed, a smoke exhaust pipe of the range hood is connected; when the range hood works, wind continuously generated by the range hood blows the wind shield 3 and turns up the wind shield 3; after the range hood is closed, wind disappears, the wind shield 3 rotates downwards under the action of gravity and magnetic force, and the opening on the wind shield ring 12 is closed.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. The flue check valve is characterized by comprising a mounting seat (1), a reducer pipe (2) and a wind deflector (3); the installation seat (1) is installed on a wall surface, an installation pipe (11) penetrating through the installation seat (1) is arranged in the middle of the installation seat (1), one end, far away from the wall surface, of the installation pipe (11) is connected with the reducer pipe (2), and one end, far away from the installation seat (1), of the reducer pipe (2) is connected with the smoke exhaust pipe;

a sliding groove (111) is formed in the inner wall of one end, far away from the wall surface, of the mounting pipe (11), a connecting column (23) is arranged on the outer side of the reducer pipe (2), and the connecting column (23) can slide into the sliding groove (111) to connect the mounting pipe (11) with the reducer pipe (2);

a wind shielding ring (12) is arranged in the mounting pipe (11); the top of the wind shield (3) is rotationally connected with the top of the wind shield ring (12) far away from one side surface of the reducer pipe (2), and the wind shield ring can be rotated upwards to open or rotated downwards to seal the opening in the middle of the wind shield ring (12).

2. A flue check valve according to claim 1, characterized in that a side of the mounting seat (1) remote from the reducer pipe (2) is provided with reinforcing ribs (14), the reinforcing ribs (14) being arranged in a honeycomb shape.

3. A flue check valve according to claim 1, characterized in that a protective tube (13) extends from a side of the mounting base (1) close to the reducer tube (2), and the protective tube (13) is arranged outside one end of the mounting tube (11) far away from the wall surface.

4. A flue check valve according to claim 3, characterized in that the mounting seat (1) is further provided with a mounting groove (15) on a side surface close to the reducer pipe (2), the mounting groove (15) is arranged on the outer side of the protective pipe (13), and the mounting groove (15) is used for mounting a level.

5. A flue check valve according to claim 1, characterized in that one end of the reducer pipe (2) is provided with a first connection end (21) for connection with the fume exhaust pipe, the outer diameter of the first connection end (21) being adapted to the inner diameter of the mouth of the fume exhaust pipe.

6. A flue check valve according to claim 1, characterized in that the runners (111) are L-shaped, the number of runners (111) being 2 and being arranged on the mounting tube (11) in a centrosymmetric manner.

7. A flue check valve according to claim 1, wherein the wind deflector (3) comprises a first plate body (31), a second plate body (32) and a sealing ring (33);

the top of the first plate body (31) is rotationally connected with the top of the wind deflector (12); one side surface of the first plate body (31) is connected with the second plate body (32); the sealing ring (33) is arranged between the second plate body (32) and the first plate body (31);

the first plate body (31) is provided with a slot which is used for being connected with a bulge arranged on the second plate body (32);

the slots comprise a first slot (311) and a second slot (312) arranged outside the first slot (311); the inner contour of the sealing ring (33) is matched with the outer contour of the second slot (312);

the protrusions comprise a first protrusion (321) and a second protrusion (322); the first protrusion (321) is matched with the first slot (311); the second protrusion (322) is adapted to the second slot (312).

8. A flue check valve according to claim 7, wherein the peripheral side of the second plate (32) remote from the side of the first plate (31) is rounded or inclined.

9. A flue check valve according to claim 1, wherein the top of the wind deflector (12) is inclined towards the end closer to the reducer pipe (2), the top of the wind deflector (12) being closer to the reducer pipe (2) than the bottom.

10. A flue check valve according to any one of claims 1 to 9, further comprising a first magnet (41) and a second magnet (42); the first magnet (41) is arranged at the bottom of the wind shielding ring (12); the second magnet (42) is arranged at the bottom of one side surface of the wind shield (3) far away from the wind shield ring (12).

Images