CN210345583U

CN210345583U - Fire prevention check valve fusing structure

Info

Publication number: CN210345583U
Application number: CN201920892496.6U
Authority: CN
Inventors: 丁华军
Original assignee: Individual
Current assignee: Ding Yu
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-04-17
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a fusing structure of a fireproof check valve, which comprises a check valve air door seat, wherein an oil smoke exhaust hole with two communicated ends is arranged in the middle of the check valve air door seat, the edge of the oil smoke exhaust hole is provided with a hole wall vertical to the check valve air door seat, a wind door plate used for shielding the oil smoke exhaust hole is arranged on the check valve air door seat and at the same side of the hole wall through a rotating shaft, a group of supporting plates are fixed on two sides of the hole wall in parallel, a chute is arranged on the supporting plates in an inclined way, a pressure rod used for extruding the wind door plate is passed through the chute, a tension spring used for pulling the pressure rod to one side far away from the rotating shaft is connected on the pressure rod, a transverse plate is fixed at the outer end of the supporting plate, an open U-shaped drag hook is sleeved on the transverse plate and the pressure rod, a fusing block is fixed on the check valve air door, the melting point of the fusing block is not more than 150 ℃; has the advantages that: fusing is faster and safer.

Description

Fire prevention check valve fusing structure

Technical Field

The utility model relates to a part, in particular to fire prevention check valve fusing structure for lampblack absorber.

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. For safety, a fireproof check valve is arranged at the outer end of the pipeline of the range hood.

Fireproof check valve on the existing market, its defect that exists is: the fusing structure is a hook capable of fusing, and the hook is directly fixed on the transverse plate and hooked on the pressure rod. Because the couple that can fuse is far away from check valve air door seat, when the intensity of a fire comes by one side, causes the couple easily not yet fused, and the intensity of a fire has already spread.

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 fire prevention check valve fusing structure.

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

a fusing structure of a fireproof check valve comprises a check valve air door seat, wherein an oil smoke exhaust hole with two communicated ends is formed in the middle of the check valve air door seat, the edge of the oil smoke exhaust hole is provided with a hole wall perpendicular to the check valve air door seat, a wind door plate for shielding the oil smoke exhaust hole is arranged on the same side of the hole wall through a rotating shaft, a group of supporting plates are fixed on two sides of the hole wall in parallel, a chute is formed in each supporting plate in an inclined mode, a pressing rod for extruding the wind door plate penetrates through the chute, the pressing rod is connected with a tension spring for pulling the pressing rod to the side far away from the rotating shaft, two ends of the tension spring are respectively connected to two ends of the pressing rod, the middle part of the tension spring is sleeved on the hole wall, a transverse plate perpendicular to the supporting plates is fixed at the outer end of the supporting plates, an open U-shaped drag hook is sleeved on, the fusing block is connected with a connecting rod, the connecting rod penetrates through the transverse plate and the U-shaped drag hook and then is in threaded connection with a blocking nut, a driving spring is sleeved on the connecting rod between the transverse plate and the U-shaped drag hook, and the fusing point of the fusing block is not more than 150 ℃.

The pressure lever is arranged in parallel with the rotating shaft;

the outer end part of the hole wall is provided with an inclined plane which inclines to one side of the rotating shaft, and the air door plate covers the inclined plane after being closed;

the outer part of the hole wall is provided with a lug for preventing the tension spring from sliding off;

one end of the sliding groove, which is far away from the rotating shaft, is tilted upwards by an angle.

The utility model has the advantages that: the practicality, low in production cost, novel structure when meetting the condition of a fire, has effectually prevented that adjacent burning things which may cause a fire disaster from the chimney passageway entering into indoorly, fuses more fast, and is safer.

Drawings

Fig. 1 is a schematic diagram of the external structure of the present invention.

Detailed Description

A fusing structure of a fireproof check valve comprises a check valve air door seat 1, wherein an oil smoke exhaust hole 1-1 with two through ends is formed in the middle of the check valve air door seat 1, a hole wall 1-3 perpendicular to the check valve air door seat 1 is arranged at the edge of the oil smoke exhaust hole 1-1, a wind door plate 2 used for shielding the oil smoke exhaust hole 1-1 is arranged on the check valve air door seat 1 and at the same side of the hole wall 1-3 through a rotating shaft 6, a group of supporting plates 3 are fixed on two sides of the hole wall 1-3 in parallel, a sliding groove 4 is formed in the supporting plate 3 in an inclined manner, a pressure rod 5 used for extruding the wind door plate 2 penetrates through the sliding groove 4, a tension spring 7 for pulling the pressure rod 5 to one side far away from the rotating shaft 6 is connected onto the pressure rod 5, two ends of the tension spring 7 are respectively connected onto two ends of the pressure rod 5, the middle part of the tension spring 7 is sleeved, the transverse plate 8 and the compression bar 5 are sleeved with an open U-shaped draw hook 9, a fusing block 100 is fixed on the check valve air door seat 1 corresponding to the U-shaped draw hook 9, a connecting rod 101 is connected onto the fusing block 100, the connecting rod 101 is in threaded connection with a blocking nut 102 after penetrating through the transverse plate 8 and the U-shaped draw hook 9, a driving spring 103 is sleeved on the connecting rod 101 between the transverse plate 8 and the U-shaped draw hook 9, and the fusing point of the fusing block 100 is not more than 150 ℃. The connecting rod 101 may be welded to the fuse block 100 or may be fixed to the fuse block 100 by a screw. One end of the driving spring 103 is pressed against the transverse plate 8, and the other end is pressed against the U-shaped draw hook 9. The transverse plate 8 is provided with a U-shaped groove structure for accommodating and mounting the driving spring 103.

The utility model discloses an improved main points lie in, with fusing structure (fusing piece 100) snap-on check valve air door seat 1, compare structure in the past, fusing structure is close to the burning things which may cause a fire disaster more. When a fire occurs, the fire is transmitted from the invisible side of the check valve seat 1 in fig. 1, the check valve seat 1 is heated and heated up firstly, the fusing block 100 is heated up immediately and is fused rapidly, after the fusing block 100 is fused, the connecting rod 101 loses the limitation of the fusing block 100, the U-shaped drag hook 9 is pushed open outwards by the driving spring 103 under the elastic force action of the driving spring 103, the U-shaped drag hook 9 is separated from the transverse plate 8, the limit of the U-shaped drag hook 9 is lost by the pressure lever 5, and the pressure lever 5 extrudes the air door panel 2 on the oil fume exhaust hole 1-1 under the tensile force action of the tension spring 7.

The pressure lever 5 is arranged in parallel with the rotating shaft 6.

The outer end part of the hole wall 1-3 is provided with an inclined plane which inclines to one side of the rotating shaft 6, and the wind door plate 2 covers the inclined plane after the wind door plate 2 is closed.

And a convex block for preventing the tension spring 7 from sliding off is arranged outside the hole wall 1-3.

One end of the sliding groove 4, which is far away from the rotating shaft 6, is tilted upwards by an angle.

Claims

1. A fusing structure of a fireproof check valve comprises a check valve air door seat (1), wherein an oil smoke exhaust hole (1-1) with two communicated ends is formed in the middle of the check valve air door seat (1), a hole wall (1-3) perpendicular to the check valve air door seat (1) is arranged at the edge of the oil smoke exhaust hole (1-1), an air door plate (2) used for shielding the oil smoke exhaust hole (1-1) is arranged on the same side of the check valve air door seat (1) and the hole wall (1-3) through a rotating shaft (6), a group of supporting plates (3) are fixed on two sides of the hole wall (1-3) in parallel, a chute (4) is formed in each supporting plate in an inclined mode, a pressure rod (5) used for extruding the air door plate (2) penetrates through the chute (4), and a tension spring (7) for pulling the pressure rod (5) to one side far away from the rotating shaft (6), the both ends of extension spring (7) are connected respectively on the both ends of depression bar (5), and the mid portion cover of extension spring (7) is established on pore wall (1-3), its characterized in that: the outer end of backup pad (3) be fixed with backup pad (3) vertically diaphragm (8), the cover is equipped with an open-ended U-shaped drag hook (9) on diaphragm (8) and depression bar (5), be fixed with fusing block (100) with the position correspondence of U-shaped drag hook (9) on check valve air door seat (1), be connected with connecting rod (101) on fusing block (100), threaded connection has blocking nut (102) behind diaphragm (8) and U-shaped drag hook (9) are passed in connecting rod (101), the cover is equipped with driving spring (103) on connecting rod (101) between diaphragm (8) and U-shaped drag hook (9), the melting point of fusing block (100) is not more than 150 ℃.

2. The structure of claim 1, wherein: the pressure lever (5) is arranged in parallel with the rotating shaft (6).

3. A fire prevention check valve fuse structure according to claim 1 or 2, wherein: the outer end part of the hole wall (1-3) is provided with an inclined plane which inclines to one side of the rotating shaft (6), and the wind door plate (2) covers the inclined plane after the wind door plate (2) is closed.

4. The structure of claim 3, wherein: and a convex block for preventing the tension spring (7) from sliding off is arranged outside the hole wall (1-3).

5. The structure of claim 4, wherein: one end of the sliding groove (4) far away from the rotating shaft (6) is tilted upwards by an angle.