CN112483689A - Telescopic flue check valve - Google Patents

Abstract

A telescopic flue check valve comprises a check valve mounting base and a check valve body, wherein the check valve mounting base is detachably mounted on one indoor side of a wall body, and is axially provided with a mounting through hole for fixing the check valve body; the check valve body is provided with a front air inlet and a rear air outlet which are communicated with each other, the front air inlet of the check valve body is communicated with the smoke outlet of the indoor smoke exhaust pipe by taking the indoor side as the front side and the wall body side as the rear side; the check valve body is arranged in the mounting through hole of the check valve mounting base in a penetrating mode, external threads are arranged on the outer wall of the check valve body along the axial direction of the check valve body, and the external threads of the check valve body are meshed with the internal threads on the inner wall of the mounting through hole; and the rear air outlet of the check valve body is matched with a flue mounting hole preset on the wall body and inserted into the flue mounting hole reserved on the wall body. The invention has the beneficial effects that: the position of the check valve can be flexibly adjusted according to the size of the reserved space, the adjustment is convenient, and the attractiveness of the wall body is not damaged.

Description

Telescopic flue check valve

Technical Field

The invention relates to a telescopic flue check valve.

Background

In order to prevent oil smoke from flowing backwards and tainting odor, smoke exhaust ventilators and integrated kitchen products are generally provided with a flue check valve component, the existing check valve component is generally in an integral shape with fixed size, a check valve body is directly fixed on a wall body through a check valve mounting base, namely, the length sizes of two sides of the whole check valve component are fixed after the whole check valve component is mounted, and the structure has the following problems: (1) the house type which is smaller than the standard installation space can not be normally installed due to the limitation of the house type and the product type; (2) for residential buildings without a common flue, the end part of the rear air outlet of the check valve component needs to exceed the outer surface of the wall body too much, and the integral attractiveness of the wall body is affected. (3) For a house type with a relatively narrow public flue, if the check valve is too deep into the flue, the oil smoke suction effect is easily influenced, and the up-down smoothness of the whole public flue is also influenced.

Disclosure of Invention

In order to solve the problems, the invention provides the telescopic flue check valve which can be flexibly installed according to the reserved space, is convenient to adjust and does not influence the attractiveness of the wall body.

The invention relates to a telescopic flue check valve, which comprises a check valve mounting base and a check valve body, and is characterized in that:

the check valve mounting base is detachably mounted on one indoor side of the wall body, and is axially provided with a mounting through hole for the check valve body to penetrate and lock;

the check valve body is provided with a front air inlet and a rear air outlet which are communicated with each other, the front air inlet of the check valve body is communicated with the smoke outlet of the indoor smoke exhaust pipe by taking the indoor side as the front side and the wall body side as the rear side;

the check valve body is arranged in the mounting through hole of the check valve mounting base in a penetrating mode, external threads are arranged on the outer wall of the check valve body along the axial direction of the check valve body, and the external threads of the check valve body are meshed with the internal threads on the inner wall of the mounting through hole;

and the rear air outlet of the check valve body is matched with a flue mounting hole preset on the wall body and inserted into the flue mounting hole reserved on the wall body.

Furthermore, the check valve body comprises a check valve shell and a check assembly arranged in the check valve body, and the check valve shell is axially provided with a ventilation hole which is communicated front and back; the check assembly is arranged in the vent hole of the check valve shell and comprises a hinge seat, a check sheet and a hinge piece, the hinge seat and the check valve shell are integrally formed, the center of the hinge seat is provided with an air channel, the front end of the air channel is communicated to an air inlet of the check valve shell, and the included angle between the plane of the outer edge of the rear end of the air channel and the vertical plane is an acute angle; the upper part of the non-return sheet is hinged on a non-return component hinge seat in the air duct through a hinge piece, and the outer diameter of the non-return sheet is larger than that of the rear end of the air duct.

Preferably, the backstop sheet is a single blade or double blades.

Furthermore, the non-return sheet is a single blade, and a tension spring is arranged between the non-return sheet and the hinged seat.

Preferably, the non-return sheet is a double-blade, and a torsion spring is arranged between the two blades.

Or the check assembly further comprises a motor, the motor is arranged in the check valve shell, and the driving end of the motor is connected with the check sheet.

The invention relates to a telescopic flue check valve, which comprises a check valve mounting base and a check valve body, and is characterized in that:

the check valve mounting base is detachably mounted on one indoor side of the wall body, is axially provided with a mounting through hole for the check valve body to penetrate through, and is radially provided with a mounting positioning hole for fixing with the check valve body;

the check valve body is provided with a front air inlet and a rear air outlet which are communicated with each other, the front air inlet of the check valve body is communicated with the smoke outlet of the indoor smoke exhaust pipe by taking the indoor side as the front side and the wall body side as the rear side;

the check valve body is arranged in the mounting through hole of the check valve mounting base in a penetrating manner, and a plurality of positioning holes are formed in the outer wall of the check valve body along the axial direction of the check valve body; the outer wall of the check valve body is tightly attached to the inner wall surface of the mounting through hole of the check valve mounting base, and the check valve body and the mounting through hole are fastened through a fastening piece;

and the rear air outlet of the check valve body is matched with a flue mounting hole preset on the wall body and inserted into the flue mounting hole reserved on the wall body.

The check valve protected by the invention can be installed in two ways: the check valve mounting base can be fixed on one side of the wall body facing the indoor, then the check valve body is mounted and adjusted to a proper position; or the check valve mounting base and the check valve body are fixed firstly, and then the rear air outlet of the check valve body is inserted into the flue mounting hole matched with the wall body.

The invention is suitable for residential buildings with public flues, and is also suitable for residential buildings without public flues, if the residential buildings with public flues are adopted, the public flue faces an indoor wall body and is preset with a flue mounting hole into which a rear air outlet of the check valve body can be inserted, and the check valve body is inserted into the public flue as much as possible so as to reduce the size of a reserved space; if the residential building is a residential building without a public flue, a flue mounting hole into which a rear air outlet of the check valve body can be inserted is directly formed in the wall body, and the check valve body is mounted in the direction of facing the indoor side as far as possible.

The invention has the beneficial effects that: (1) the position of the check valve can be flexibly adjusted according to the size of the reserved space; (2) the method can be suitable for residential buildings without public flues: for the residential buildings, the relative positions of the check valve mounting base and the check valve body are only required to be adjusted, so that the rear air outlet of the check valve body does not exceed the outer plane of the wall body as much as possible; (3) the adjustment is convenient: the check valve can be quickly adapted to different installation spaces only by manually adjusting the threaded connection position between the check valve installation base and the check valve body; or after the relative position between the check valve base and the check valve body is adjusted, the check valve base and the check valve body are fixed through the fastener.

Drawings

Fig. 1 is one of the structural diagrams of the present invention (the arrow in the common flue represents the direction of the common smoke and the arrow at the air inlet of the check valve body represents the direction of the indoor smoke exhaust).

Fig. 2 is a second structure diagram of the present invention (the arrow in the common flue represents the direction of the common smoke, and the arrow at the air inlet of the check valve body represents the direction of the indoor smoke exhaust).

Fig. 3 is a structural view of a check valve body of the present invention.

Fig. 4 is a structural view of a check valve housing of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the orientations or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Embodiment 1 is shown in the figure, a telescopic flue check valve comprises a check valve mounting base 1 and a check valve body 2, wherein the check valve mounting base 1 is detachably mounted on one indoor side of a wall 3, and is axially provided with a mounting through hole for fixing the check valve body;

the check valve body 2 is provided with a front air inlet and a rear air outlet which are communicated with each other, the front air inlet of the check valve body is communicated with the smoke outlet of the indoor smoke exhaust pipe by taking the indoor side as the front side and the wall body side as the rear side;

the check valve body 2 is arranged in the installation through hole of the check valve installation base 1 in a penetrating mode, external threads 221 are arranged on the outer wall of the check valve body along the axial direction of the check valve body, and the external threads of the check valve body 2 are meshed with the internal threads on the inner wall of the installation through hole;

the rear air outlet of the check valve body 2 is matched with a flue mounting hole 31 preset on the wall body 3 and inserted into a flue mounting hole reserved on the wall body, and the depth of the check valve body 2 inserted into the flue mounting hole is adjusted by adjusting the threaded connection position of the check valve mounting base 1 on the check valve body 2.

Further, the check valve body 2 comprises a check valve housing 22 and a check assembly 21 arranged in the check valve body, wherein the check valve housing 22 is provided with a ventilation hole which is through from front to back along the axial direction; the non-return assembly 21 is arranged in the vent hole of the non-return valve shell and comprises a hinge seat 211, a non-return sheet 212 and a hinge piece 213, the hinge seat 211 and the non-return valve shell 22 are integrally formed, the center of the hinge seat 211 is provided with an air duct, the front end of the air duct is communicated to the front air inlet of the non-return valve shell 22, and the included angle between the plane of the outer edge of the rear end of the air duct and the vertical plane is an acute angle; the upper portion of the check plate 212 is hinged to a hinge seat of the check assembly 21 in the air duct through a hinge 213, and the outer diameter of the check plate 212 is greater than that of the rear end of the air duct.

Preferably, backstop 212 is a single blade or a double blade.

Furthermore, the non-return sheet is a single blade, and a tension spring is arranged between the non-return sheet and the hinged seat.

Or the non-return sheet is a double-blade and a torsion spring is arranged between the two blades.

Preferably, the check assembly 21 further comprises a motor, the motor is disposed in the check valve housing, and a driving end of the motor is connected to the check sheet.

Preferably, the installation through hole of the check valve installation base is adapted to the check valve body and can be square or circular, the check valve installation base 1 is installed at the flue installation hole of the indoor wall facing the common flue, and the outer diameter of the check valve installation base 1 is larger than the inner diameter of the flue installation hole, so that when the check valve installation base 1 is fixed at the locking position of the check valve housing 22, the axial movement of the check valve body can be effectively limited, and the axial length of the insertion part of the check valve housing can be limited.

Embodiment 2 a telescopic flue check valve according to this embodiment includes a check valve mounting base 1 and a check valve body 2,

the check valve mounting base 1 is detachably mounted on one indoor side of the wall body 3, is axially provided with a mounting through hole for the check valve body to penetrate through, and is radially provided with a mounting positioning hole for fixing the check valve body;

the non-return valve body 2 is provided with a front air inlet and a rear air outlet which are communicated with each other, the front air inlet facing the indoor side is used as the front, the rear air inlet facing the wall body is used as the rear, and the front air inlet of the non-return valve body 2 is communicated with the smoke outlet of the indoor smoke exhaust pipe;

the check valve body 2 is arranged in the mounting through hole of the check valve mounting base 1 in a penetrating mode, and a plurality of positioning holes are formed in the outer wall of the check valve body along the axial direction of the check valve body; the outer wall of the check valve body 2 is tightly attached to the inner wall surface of the mounting through hole of the check valve mounting base 1, and the check valve body and the mounting through hole are fastened through a fastening piece;

the rear air outlet of the check valve body 2 is matched with a flue mounting hole 31 preset on the wall body 3 and inserted into a flue mounting hole reserved in the wall body 3.

The fastener is a set screw.

The rest of the structure is consistent with the telescopic flue check valve structure protected by the embodiment 1.

The invention is suitable for residential buildings with a public flue, and is also suitable for residential buildings without the public flue 4, if the residential buildings with the public flue are provided, the public flue faces an indoor wall body and is preset with a flue mounting hole into which a rear air outlet of the check valve body can be inserted, and the check valve body is inserted into the public flue 4 as much as possible so as to reduce the size of a reserved space; if the residential building is a residential building without a public flue, the wall body is directly provided with a flue mounting hole into which the rear air outlet of the check valve body can be inserted, the check valve body is mounted in the direction of the indoor side, and the end part of the rear air outlet of the check valve body is prevented from exceeding the outer surface of the wall body to influence the attractiveness of the wall body.

The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but includes equivalent technical means as would be recognized by those skilled in the art based on the inventive concept.

Claims (8)

1. The utility model provides a telescopic flue check valve, includes check valve mounting base and check valve body, its characterized in that:

the check valve mounting base is detachably mounted on one indoor side of the wall body, and is axially provided with a mounting through hole for the check valve body to penetrate and lock;

the check valve body is provided with a front air inlet and a rear air outlet which are communicated with each other, the front air inlet of the check valve body is communicated with the smoke outlet of the indoor smoke exhaust pipe by taking the indoor side as the front side and the wall body side as the rear side;

the check valve body is arranged in the mounting through hole of the check valve mounting base in a penetrating mode, external threads are arranged on the outer wall of the check valve body along the axial direction of the check valve body, and the external threads of the check valve body are meshed with the internal threads on the inner wall of the mounting through hole;

and the rear air outlet of the check valve body is matched with a flue mounting hole preset on the wall body and inserted into the flue mounting hole reserved on the wall body.

2. A telescoping flue check valve as in claim 1, wherein: the check valve body comprises a check valve shell and a check assembly arranged in the check valve body, and the check valve shell is axially provided with a ventilation hole which is communicated front and back; the check assembly is arranged in the vent hole of the check valve shell and comprises a hinge seat, a check sheet and a hinge piece, the hinge seat and the check valve shell are integrally formed, the center of the hinge seat is provided with an air channel, the front end of the air channel is communicated to an air inlet of the check valve shell, and the included angle between the plane of the outer edge of the rear end of the air channel and the vertical plane is an acute angle; the upper part of the non-return sheet is hinged on a non-return component hinge seat in the air duct through a hinge piece, and the outer diameter of the non-return sheet is larger than that of the rear end of the air duct.

3. A telescoping flue check valve as in claim 2, wherein: the non-return sheet is a single blade or a double blade.

4. A telescoping flue check valve as in claim 3, wherein: the non-return sheet is a single blade, and a tension spring is arranged between the non-return sheet and the hinged seat.

5. A telescoping flue check valve as in claim 3, wherein: the non-return sheet is a double-blade and a torsion spring is arranged between the two blades.

6. A telescoping flue check valve as in claim 3, wherein: the check assembly further comprises a motor, the motor is arranged in the check valve shell, and the driving end of the motor is connected with the check sheet.

7. The utility model provides a telescopic flue check valve, includes check valve mounting base and check valve body, its characterized in that:

the check valve mounting base is detachably mounted on one indoor side of the wall body, is axially provided with a mounting through hole for the check valve body to penetrate through, and is radially provided with a mounting positioning hole for fixing the check valve body;

the check valve body is provided with a front air inlet and a rear air outlet which are communicated with each other, the front air inlet of the check valve body is communicated with the smoke outlet of the indoor smoke exhaust pipe by taking the indoor side as the front side and the wall body side as the rear side;

the check valve body is arranged in the mounting through hole of the check valve mounting base in a penetrating manner, and a plurality of positioning holes are formed in the outer wall of the check valve body along the axial direction of the check valve body; the outer wall of the check valve body is tightly attached to the inner wall surface of the mounting through hole of the check valve mounting base, and the check valve body and the mounting through hole are fastened through a fastening piece;

and the rear air outlet of the check valve body is matched with a flue mounting hole preset on the wall body and inserted into the flue mounting hole reserved on the wall body.

8. A telescoping flue check valve as in claim 7, wherein: the fastener is a set screw.

Images