Supply ventilation valve

Abstract

The utility model relates to ventilation devices intended for airing premises for various purposes: office, domestic, residential, warehouse, administrative, public, industrial and other premises. A supply ventilation valve comprising an air duct (1) made of heat and sound insulating material, a filter element (6), and an air flow regulator. External and internal mounting flanges (2, 4) with linings (3, 7) are installed on both sides of the air duct (1), a sponge filter (6) is located in the internal flange (4) made with an internal threaded element (5), and the air flow regulator is made in the form of a heat-insulated disk (8) with a threaded rod (9) with the possibility of screwing into the threaded element (5) of the internal flange. The technical result consists in simplifying the design of the supply ventilation valve, which ensures improved performance characteristics. 5 clauses, 3 figs.

Description

[0001] The utility model relates to ventilation devices designed for airing premises for various purposes: office, household, residential, warehouse, administrative, public, industrial and other premises.

[0002] A noise-protecting ventilation device is known, comprising a hollow housing with ventilation openings and a ventilation opening clearance adjustment unit. The housing consists of a pipe, a grille installed at one end thereof and a partition with a ventilation opening installed at its other end, on which a clearance adjustment unit is mounted. A gasket made, for example, of thermoplastic plastic and rubber is installed on the partition on the housing side. A coating of noise-absorbing material is placed on the cylindrical wall of the housing. The device is equipped with a hollow cover installed on the partition and having openings in the wall on which an air filter is located, and an adjustment handle connected to the clearance adjustment unit (Patent No. RU 30 817, IPC E06B 7 / 02, published July 10, 2003).

[0003] The disadvantages of this device are:

[0004] - inability to regulate the opening of the petals with a small step;

[0005] - the complexity of the design of the clearance adjustment unit and, as a result, unreliability in operation;

[0006] - difficulty in assembly and repair;

[0007] - limited air flow when the device is in the maximum open position, since the adjustment unit blocks part of the ventilation hole;

[0008] - the possibility of spontaneous blocking of the air duct during strong gusts of wind, since the petals of the adjustment unit are directed towards the air flow.

[0009] A supply ventilation valve is known, comprising an air duct made of heat and sound insulating material, with housings located at its ends. The housing, located at the end internal to the room, is configured with an air flow regulator coaxially mounted on its outer side and capable of being rotated, and is configured with an air duct channel on the inner side, ensuring the possibility of its alignment with the regulator window when the regulator is rotated to regulate the air flow. The valve comprises a protective box at the end external to the room of the air duct, with a frame in which a mosquito net or air filter is secured. The box is designed with walls that form a labyrinth channel. A heat and sound absorbing pad is installed in the protective box opposite the air duct. The air flow regulator is designed as a cylinder with a closed outer end, or a truncated cone, or a sphere with a heat and sound insulating insert.The air flow regulator housing contains partitions located on the inside, forming two air ducts with the possibility of their alignment with the air flow regulator windows (patent No. RU 178462, IPC F24F 7 / 00, F24F 13 / 08, published 04.04.2018).

[0010] The disadvantages of this technical solution are:

[0011] - the complexity of its design;

[0012] - the possibility of condensation formation, frost and ice covering the valve body;

[0013] - the valve lets wind through when closed due to the fact that the flaps do not close completely;

[0014] - the grille has no protection from precipitation;

[0015] - given the design features of the inner casing with an air flow regulator, the valve protrudes significantly from the wall.

[0016] A supply ventilation valve is known, including an outer cover with a grille, a pipe, a heat and noise insulating insert, a housing made in the form of a horizontally oriented parallelepiped with ventilation slots formed in the lower wall of the housing and arranged in a row, a heat and noise insulating box, a coarse air filter and a damper made of a polymeric material in the form of a plate, with a control element formed integrally with the damper and partially protruding from the housing through an opening in the front wall of the housing, the ventilation slots are made with a constant pitch L, a row of holes with the same constant pitch L are formed in the damper, and the opening in the front wall of the housing is made of an elongated shape for longitudinal movement of the control element (patent No. RU 220 495, IPC F24F 7 / 04 F24F 7 / 003, F24F 13 / 10 Published on September 18, 2023).

[0017] A drawback of this valve is that it is too bulky and protrudes significantly from the wall and to the sides, limiting the user's choice of installation location. Another significant drawback of this device is the lack of a mount for the outer cover with grille to the air duct.

[0018] The closest in terms of the set of essential features is a ventilation device designed to implement standard air exchange in a room, with air flow control, the air inflow is carried out through an external grille, entering an air duct pipe equipped with heat and sound insulation, passes through smoothly adjustable dampers, enters a housing containing a filter, enters the room, the device is equipped with a mechanism for regulating the flow of incoming air with a handle-plate containing through slots for placing damper parts using protruding cylindrical elements, and the ventilation duct is equipped with a mesh filter with a handle for trapping insects and large debris (patent No. RU 222 712, IPC F24F 7 / 003, published 01 / 17 / 2024).

[0019] The disadvantage of this technical solution is the design complexity due to the large number of parts and low reliability. The damper does not close tightly, leaving gaps.

[0020] The technical problem that the claimed technical solution is aimed at solving is the simplification of the design of the ventilation valve, which leads to an improvement in operational characteristics.

[0021] The technical result coincides with the set task and is achieved due to the fact that in the supply ventilation valve, containing an air duct made of heat and sound insulating material, a sponge filter made with a central hole, an air flow regulator, on both sides of the heat and sound insulated air duct, external and internal mounting flanges with linings are installed, while a threaded element is located in the internal flange, and the air flow regulator is made in the form of a heat-insulated disk with a threaded rod, with the possibility of screwing into the threaded element of the internal flange.

[0022] New, significant features aimed at solving this problem include external and internal mounting flanges with decorative covers installed in a duct made of heat and sound insulating material; an internal flange with an internal threaded element housing a filter element; and an air flow regulator in the form of a heat-insulated disk with a threaded rod. This supply ventilation valve design is reliable in operation, easy to manufacture, and all its components are easily replaced as they wear or become dirty. These design features ensure the technical result.

[0023] The dependent claims of the formula: the heat-insulated disk is made detachably with a threaded rod, the flange linings are made with latches, the outer flange lining is made in the form of a grate of all-alloy blinds and is equipped with a mosquito net, the threaded element is fixed in the inner flange by means of a grate, and the filter is located in the inner flange with support on the grate of the threaded element, are also aimed at solving the problem.

[0024] The utility model is illustrated by drawings.

[0025] Fig. 1 - supply ventilation valve assembly;

[0026] Fig. 2 - parts in volumetric format;

[0027] Fig. 3 - parts of the supply ventilation valve in the order of assembly in section.

[0028] The supply ventilation valve (hereinafter referred to as the valve) comprises an air duct 1. Air duct 1 is a flexible tube made of heat and sound insulating material, the length of which is adjusted to the wall width. Air duct 1 supplies air, dampens external noise, and prevents the wall around the opening from freezing during the cold season. Air duct 1 is inserted directly into the wall opening, which has a smaller diameter than the outer pipe of air duct 1. Due to this, as well as the elasticity and resilience of the pipe, a tight fit is achieved between air duct 1 and the inner surface of the wall opening. An external mounting flange 2 is installed into air duct 1 from the street side, which has through-holes for fastening to the building wall with self-tapping screws. Flange 2 is closed by a removable overhead grille 3 with latches for fastening to flange 2 and is made in the form of all-alloy blinds with transverse grilles and can be equipped with a mosquito net.Grille 3 is easily removed for cleaning the grille and ductwork to remove dust and dirt. This solution also prevents precipitation from entering the valve ductwork, as well as insects, fluff, debris, and other particles.

[0029] An internal mounting flange 4 is installed on the room side. It has through holes for fastening to the building wall with screws. Threaded element 5 is located inside flange 4, which has an internal stepped surface and is attached to flange 4 by a grid of cross-shaped crossbars. Threaded element 5 is located inside flange 4 strictly in the center, coaxial with the air flow regulator. A sponge filter 6 with a central hole is subsequently installed in flange 4. By installing filter 6 inside mounting flange 4, the overall dimensions are reduced. This reduced overall dimensions allow the valve to be installed even in tight spaces, such as between a window sill and a heating radiator, behind a curtain, etc. Furthermore, the location of filter 6 inside mounting flange 4 provides easy access for removal and cleaning of dust and dirt, or replacement without dismantling the valve and decorative cover 7.

[0030] Filter 6 rests on jumpers, thereby preventing its displacement inside flange 4. Flange 4 is closed by a decorative cover 7 with latches, also made with a central hole.

[0031] The air flow regulator consists of a heat-insulated disc 8 with a threaded rod 9, which is screwed into a threaded element 5 in flange 4, providing smooth air flow regulation. Threaded rod 9 can be either integral with disc 8 or separate from it. A removable rod 9 simplifies the design.

[0032] The design of the disc 8 with the threaded rod 9 allows you to smoothly and accurately adjust the degree of opening of the valve and the intensity of the passing air.

[0033] Working principle

[0034] The valve operates based on the difference in temperature and pressure between the inside and outside of the room: air enters the room naturally through duct 1, without fans or energy costs. This incoming air refreshes the room and creates a draft in the kitchen and bathroom exhaust ducts, pushing the exhaust air into the hood.

[0035] The air flow through the valve is regulated by rotating the disc 8 (turn counterclockwise to open and clockwise to close). The valve has smooth adjustment up to its full closing position.

[0036] The claimed design of the supply ventilation valve consists of a minimum number of parts, which simplifies its assembly and installation, as well as improves its performance. Thus, the technical result is achieved.

[0037] The supply ventilation valve is industrially applicable and can be manufactured on modern equipment using well-known materials and technologies.

Claims

1. A supply ventilation valve comprising an air duct made of heat and sound insulating material, a sponge filter made with a central opening, an air flow regulator, characterized in that external and internal mounting flanges with overlays are installed on both sides of the heat and sound insulated air duct, wherein a threaded element is located in the internal flange, and the air flow regulator is made in the form of a heat-insulated disk with a threaded rod, with the possibility of screwing into the threaded element of the internal flange.

2. A supply ventilation valve according to paragraph 1, characterized in that the heat-insulated disk is made detachably with a threaded rod.

3. A supply ventilation valve according to paragraph 1, characterized in that the flange covers are made with latches.

4. A supply ventilation valve according to paragraph 1, characterized in that the outer flange cover is made in the form of a grille of all-alloy blinds and is equipped with a mosquito net.

5. A supply ventilation valve according to paragraph 1, characterized in that the threaded element is secured in the inner flange by means of a grate.

6. A supply ventilation valve according to paragraph 1, characterized in that the filter is located in the inner flange with support on the grate of the threaded element.

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