CN213598648U

CN213598648U - Side-opening fireproof check valve

Info

Publication number: CN213598648U
Application number: CN202022116711.9U
Authority: CN
Inventors: 丁华军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-07-02
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses a fire prevention check valve of side door, including the check valve air door seat, the oil extraction gas pocket has been seted up in the middle of the check valve air door seat, install the side air door plant that opens who shelters from oil extraction gas pocket and use through the pivot of vertical setting on oil extraction gas pocket right side or left check valve air door seat, it has the backup pad to weld levelly on the check valve air door seat of both sides about the oil extraction gas pocket, the one end welded connection who is close to the pivot on the backup pad of both sides about, set up the spout by bracing piece one end to other end slope on the backup pad of both sides about, sliding connection has the depression bar that the side air door plant extrusion sheltered from on oil extraction gas pocket in the spout, the both ends of depression bar are connected to the both ends of extension spring, the intermediate position of bracing piece has passed the pull rod, the outer end of pull rod is fixed with the couple that the; has the advantages that: the oil smoke can be discharged more smoothly.

Description

Side-opening fireproof check valve

Technical Field

The utility model relates to a part, in particular to side-opening fireproof check valve for range hood.

Background

The fume exhauster is also called as fume exhauster, and is a kitchen electric appliance for purifying kitchen environment. The smoke exhaust ventilator is arranged above a kitchen range of a healthy energy-saving kitchen range hood, can rapidly exhaust waste burnt by the kitchen range and oil smoke harmful to human bodies generated in the cooking process, and exhaust the waste and the oil smoke to the outside, reduces pollution, purifies air, and has the safety guarantee effects of gas defense and explosion prevention.

Related with current house design, there is the potential safety hazard in the installation use of current lampblack absorber. At present, in many high-rise apartments, families of multiple households share the same flue, exhaust pipes of range hoods are connected to the same flue, when fire occurs in the flue, the fire easily enters the room along the pipeline of the range hoods through the flue, and fire disasters are caused, so that the high-rise apartment is extremely unsafe.

To this defect, install the fire prevention check valve on the flue usually, current fire prevention check valve, its wind door plant upwards opens, because its angle of opening is limited, the oil smoke can be blocked by the wind door plant that upwards opens when upwards discharging, causes the not unobstructed defect of oil extraction cigarette.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to sell the not enough of product technique on the existing market, provide a side fire prevention check valve that opens the door.

In order to achieve the above object, the present invention takes the following measures:

a side-opening fireproof check valve comprises a check valve air door seat, wherein a plurality of mounting holes are formed in the check valve air door seat, an oil smoke exhaust hole is formed in the middle of the check valve air door seat, a side-opening door plate for shielding the oil smoke exhaust hole is arranged on the right side or the left side of the oil smoke exhaust hole through a vertically arranged rotating shaft, supporting plates are horizontally welded on the check valve air door seats on the upper side and the lower side of the oil smoke exhaust hole, supporting rods are welded on the supporting plates on the upper side and the lower side and close to one ends of the rotating shaft, sliding grooves are formed in the supporting plates on the upper side and the lower side and inclined from one end of the supporting rods to the other end, pressing rods for extruding and shielding the side-opening door plate on the oil smoke exhaust hole are connected in the sliding grooves in a sliding mode, two ends of the pressing rods are connected to two, a pull rod penetrates through the middle position of the supporting rod, a hook for hooking the pressure rod is fixed at the outer end of the pull rod, the inner end of the pull rod is connected to a check valve air door seat through a fusing block, and the melting point of the fusing block is not more than 150 ℃;

the edge of the oil fume exhaust hole extends to one side of the side air opening door plate to form a hole wall, and the upper end of the hole wall is shorter, and the lower end of the hole wall is longer;

the outer end of the hole wall is turned inwards to form a folded edge perpendicular to the hole wall, and the side-opening door plate is closed and then is tightly attached to the folded edge.

The utility model has the advantages that: the practicality, low in production cost, novel structure, safe in utilization when meetting the condition of a fire, effectually prevented that adjacent burning things which may cause a fire disaster from chimney passageway entering into indoorly, the design of side door, the oil extraction cigarette is more unobstructed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

A side-opening fireproof check valve comprises a check valve air door seat 1, wherein a plurality of mounting holes 1-1 are formed in the check valve air door seat 1, an oil fume exhaust hole 1-2 is formed in the middle of the check valve air door seat 1, a side-opening door plate 3 for shielding the oil fume exhaust hole 1-2 is arranged on the right side or left side of the oil fume exhaust hole 1-2 through a vertically arranged rotating shaft 2, support plates 4 are horizontally welded on the check valve air door seats 1 on the upper side and the lower side of the oil fume exhaust hole 1-2, a support rod 5 is welded on one end, close to the rotating shaft 2, of the support plates 4 on the upper side and the lower side, a sliding groove 4-1 is formed in the support plates 4 on the upper side and the lower side in an inclined mode from one end of the support rod 5 to the other end, a pressing rod 6 for extruding and shielding the side-opening door plate 3 on, the two ends of the pressure lever 6 are connected to the two ends of the tension spring 7, one end of the check valve air door seat 1, which is far away from the rotating shaft 2, is provided with a baffle plate 1-3, the middle section of the tension spring 7 is sleeved on the baffle plate 1-3, the middle position of the support rod 5 is provided with a pull rod 8 in a penetrating way, the outer end of the pull rod 8 is fixed with a hook 9 for hooking the pressure lever 6, the inner end of the pull rod 8 is connected to the check valve air door seat 1 through a fusing block 10, and the fusing point of the fusing block 10 is.

The edge of the oil fume exhaust hole 1-2 extends towards one side of the side air opening door plate 3 to form a hole wall 1-4, and the upper end and the lower end of the hole wall 1-4 are obliquely arranged in a shorter way.

The outer end of the hole wall 1-4 is inwards folded to form a folded edge 1-5 which is vertical to the hole wall 1-4, and the side-open air door plate 3 is closed and then clings to the folded edge 1-5. Because the upper end of the hole wall 1-4 is arranged obliquely and the lower end is arranged obliquely and is longer, the inclined plane formed by the folded edges 1-5 is also arranged obliquely from bottom to top, and the rotating shaft 2 is also arranged at the same oblique angle, under the condition of no external force, the side air opening door plate 3 is covered on the oil smoke exhaust hole 1-2 under the action of self gravity, and the oil smoke outside the flue is prevented from flowing backwards into the room.

When the range hood works, the side air opening door plate 3 is blown open by the wind power of the range hood, and oil smoke is discharged.

The utility model discloses under normal user state, depression bar 6 hook is held on couple 9, and the side door plant 3 that opens wind can follow pivot 2 rotations, can open oil extraction gas pocket 1-2, reaches the effect of lampblack absorber oil pumping and discharging flue gas.

The biggest improvement of prior art lies in that the side door plant 3 side direction of opening is opened to this application scheme, can not shelter from the oil smoke and upwards discharge, and oil extraction cigarette is more smooth and easy.

When meetting the condition of a fire, the intensity of a fire gets into by the chimney the utility model discloses, fuse block 10 meets the intensity of a fire (high temperature exceeds 150 ℃), fuse block 10 melts rapidly, pull rod 8 breaks away from the restriction, depression bar 6 breaks away from couple 9, receives the pulling force of extension spring 7, and depression bar 6 removes to keeping away from 2 one sides of pivot along the spout 4-1 that the slope set up, and final depression bar 6 extrusion is on side division wind door plant 3 to will incline division wind door plant 3 and cover on oil extraction flue gas hole 1-2, prevent that the intensity of a fire from getting into indoorly by oil extraction flue gas hole 1-2, realize the function of fire prevention.

A spring is sleeved on a section of the pull rod 8 between the support rod 5 and the hook 9, one end of the spring is pressed on the support rod 5, the other end of the spring is pressed on the hook 9, and after the fuse block 10 is melted, the spring can rapidly flick the hook 9 to enable the press rod 6 to be separated from the limit of the hook 9. Hook 9 may also be made of a material that fuses 10 are also easily melted.

Claims

1. The utility model provides a fire prevention check valve inclines, includes check valve air door seat (1), has seted up a plurality of mounting holes (1-1) on check valve air door seat (1), and oil extraction flue gas hole (1-2), its characterized in that have been seted up to the centre of check valve air door seat (1): a side air-opening door plate (3) for shielding the oil fume exhaust hole (1-2) is arranged on the right side or the left side of the check valve air door seat (1) of the oil fume exhaust hole (1-2) through a vertically arranged rotating shaft (2), supporting plates (4) are horizontally welded on the check valve air door seats (1) on the upper side and the lower side of the oil fume exhaust hole (1-2), one ends of the supporting plates (4) on the upper side and the lower side, which are close to the rotating shaft (2), are welded with supporting rods (5), sliding grooves (4-1) are formed in the supporting plates (4) on the upper side and the lower side in an inclined mode from one end to the other end of the supporting rods (5), pressing rods (6) for extruding and shielding the side air-opening door plate (3) on the oil fume exhaust hole (1-2) are connected in the sliding grooves (4-1), two ends of the pressing rods (6) are connected to two ends of tension springs (7), blocking pieces (1-3, the middle section of the tension spring (7) is sleeved on the blocking piece (1-3), the middle position of the supporting rod (5) penetrates through the pull rod (8), the outer end of the pull rod (8) is fixedly provided with a hook (9) for hooking the pressure rod (6), the inner end of the pull rod (8) is connected to the check valve air door seat (1) through the fusing block (10), and the fusing point of the fusing block (10) is not more than 150 ℃.

2. A side-opening fire check valve as defined in claim 1, wherein: the edge of the oil fume exhaust hole (1-2) extends towards one side of the side air opening door plate (3) to form a hole wall (1-4), and the upper end and the lower end of the hole wall (1-4) are arranged obliquely and relatively short.

3. A side-opening fire check valve as defined in claim 2, wherein: the outer end of the hole wall (1-4) is inwards folded to form a folded edge (1-5) perpendicular to the hole wall (1-4), and the side-opening door panel (3) is closed and then clings to the folded edge (1-5).