CN216279420U

CN216279420U - Fire control is with high reliability normally opening fire prevention valve of discharging fume

Info

Publication number: CN216279420U
Application number: CN202122255283.2U
Authority: CN
Inventors: 郝战京; 史世强
Original assignee: Henan Ruitai Hvac Technology Co ltd
Current assignee: Henan Ruitai Hvac Technology Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-04-12
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses a high-reliability normally-open smoke-discharging fire-proof valve for fire fighting, which comprises a valve body, a plurality of valve rods, blades, a connecting rod and a temperature-control electromagnetic actuator, wherein a plurality of shaft sleeves are vertically arranged and uniformly and rotatably mounted in a valve cavity of the valve body, the valve rods are rotatably mounted in the shaft sleeves, one end of each valve rod extends out of the shaft sleeve and is meshed with the temperature-control electromagnetic actuator mounted on the outer side wall of the valve body, the blades are symmetrically mounted on the shaft sleeves, the blades on the adjacent shaft sleeves are mutually abutted and seal the valve cavity, the connecting rod is rotatably connected with one end of each valve rod through a hinge piece, and the connecting rod and the hinge piece are positioned in the side wall of the valve body, wherein a locking mechanism is arranged on the blades on the shaft sleeves, and a driving mechanism for rotating the shaft sleeves and locking the locking mechanism is arranged between the valve rods. This fire prevention valve of discharging fume when the valve is tightly closed, guarantees that the blade also can keep mutual hugging closely the state in the face of huge pressure differential, prevents that the outside air from getting into the conflagration environment, hinders the intensity of a fire to stretch, improves the security and the reliability of fire prevention valve of discharging fume.

Description

Fire control is with high reliability normally opening fire prevention valve of discharging fume

Technical Field

The utility model relates to the technical field of fire valve equipment, in particular to a high-reliability normally-open smoke-discharging fire-proof valve for fire fighting.

Background

The smoke exhaust fire prevention valve and the fire fighting part are generally installed on a pipeline of a mechanical smoke exhaust system, are in an open state at ordinary times, are opened to exhaust smoke when a fire disaster occurs, are closed when the temperature of smoke in a smoke exhaust pipeline reaches 280 ℃, meet the requirements of smoke leakage amount and fire resistance integrity within a certain time, and play a role in separating smoke and fire resistance.

The fire damper of discharging fume is when the flue gas reaches certain temperature, and the temperature that high temperature triggered in the control by temperature change electromagnetic actuator or memory metal, switch on power, perhaps personnel's initiative switch on power, is tightly closed by control by temperature change electromagnetic actuator control valve, and the separation outside air gets into in the conflagration environment, hinders the intensity of a fire to stretch, and it is well known that: at the conflagration point of occurrence, especially in the ring that is airtight relatively is tight, because huge difference in temperature, lead to the valve need be in the face of very big pressure differential, the external air wants to get into from the valve, and inside high temperature air wants to flow through the valve, under this condition, the valve blade can be because huge pressure produces the gap, the blade distortion even, lead to the external air to go into to help the intensity of a fire, so need a fire control to normally open with high reliability and discharge fume fire prevention valve, effectively avoid under the huge pressure the untight phenomenon of blade closure, improve the security performance of valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-reliability normally-opened smoke-discharging fire-proof valve for fire fighting, which aims to solve the problem that the blades of the smoke-discharging fire-proof valve generate gaps due to huge pressure difference and even generate the phenomenon of blade distortion, so that the outside air enters to promote the fire.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a high-reliability normally-open smoke-discharging fire-proof valve for fire fighting, which comprises a valve body, a plurality of valve rods, blades, a connecting rod and a temperature-control electromagnetic actuator, a plurality of shaft sleeves are vertically and uniformly and rotatably arranged in the valve cavity of the valve body, the valve rod is rotatably arranged in the shaft sleeves, one end of the temperature control electromagnetic actuator extends out of the shaft sleeve and is meshed with the temperature control electromagnetic actuator arranged on the outer side wall of the valve body, the blades are symmetrically arranged on the shaft sleeves, the blades on the adjacent shaft sleeves are mutually abutted and seal the valve cavity, the connecting rod is rotatably connected with one end of each valve rod through a hinge sheet, the connecting rod and the hinge sheet are positioned in the side wall of the valve body, the locking mechanism is arranged on the blade on the shaft sleeve, and a driving mechanism used for rotation of the shaft sleeve and locking of the locking mechanism is arranged between the shaft sleeve and the valve rod.

The further technical scheme is as follows: the locking mechanism comprises a sliding rod, a plurality of sliding sleeves and a locking sleeve, the sliding sleeves are arranged along a linear direction and are evenly arranged on one side face of the blade, the sliding rod is slidably mounted in the sliding sleeves, and the locking sleeve is mounted on one side face of the blade and is arranged opposite to one end of the sliding rod.

The further technical scheme is as follows: actuating mechanism includes first gear piece, second gear piece, third gear piece and rack, first gear piece level sets up on the lateral wall of valve rod, second gear piece level sets up and the symmetry is installed on the lateral wall of valve rod, two the second gear piece is located respectively the top and the below of first gear piece, third gear piece level sets up and the symmetry is installed on the inside wall of axle sleeve, and with the meshing of second gear piece, the rack level sets up the medial surface of slide bar, and with the meshing of first gear piece.

The further technical scheme is as follows: the first gear block, the second gear block and the third gear block are all arc gears, the outer convex sides of the first gear block and the second gear block are provided with teeth, and the inner concave surface of the third gear block is provided with teeth.

The further technical scheme is as follows: the radian of the arc-shaped gear is 90 degrees, and one end of the first gear block and one end of the second gear block are connected and do not overlap on the axial projection of the valve rod.

The further technical scheme is as follows: an arc-shaped hole with the circumference of at least 3/4 is formed in the side wall of the shaft sleeve, and the first gear block rotates in the arc-shaped hole.

Compared with the prior art, the utility model has the beneficial effects that:

the high-reliability normally-open smoke-discharging fire-resisting valve for fire fighting can ensure that the blades can keep a mutual close state facing a huge pressure difference when the valve is closed, further ensure the tightness of the valve, prevent external air from entering a fire environment, prevent the fire from spreading and improve the safety and reliability of the smoke-discharging fire-resisting valve.

In addition, the valve is convenient to operate and simple in structure, the temperature control electromagnetic actuator can be used for driving or manually rotating the valve rod in a unified mode, the blades are locked immediately after the valve is closed, linkage is good, and the partial mechanisms do not interfere with each other when working.

Drawings

Fig. 1 is a schematic structural view of a high-reliability normally-open smoke-discharging fire-proof valve for fire protection of the utility model.

Fig. 2 is a schematic view of another view of fig. 1 according to the present invention.

Fig. 3 is a schematic structural view of the locking mechanism and the driving mechanism of fig. 1 according to the present invention.

Fig. 4 is a schematic structural diagram of the driving mechanism of fig. 3 according to the present invention.

Fig. 5 is a schematic structural view of the first gear block and the second gear block of fig. 4 according to the present invention.

Reference numerals: 1. a valve body; 2. a valve stem; 3. a blade; 4. a connecting rod; 5. a temperature controlled electromagnetic actuator; 6. a shaft sleeve; 61. an arc-shaped hole; 7. a locking mechanism; 71. a slide bar; 72. a sliding sleeve; 73. a locking sleeve; 8. a drive mechanism; 81 a first gear block; 82. a second gear block; 83. a third gear block; 84. a rack; 9. a hinged flap.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

in this embodiment, as shown in fig. 1 and fig. 2, the structure of the high-reliability normally-open smoke-discharging fire-proof valve for fire protection is as follows: the valve body 1, a plurality of valve rods 2, blades 3, a connecting rod 4, an electromagnetic actuator 5 and the like in the normally closed smoke exhaust valve are all components of the traditional smoke exhaust valve, a plurality of shaft sleeves 6 are vertically arranged and uniformly and rotatably installed in a valve cavity of the valve body 1, the blades 3 are symmetrically installed on the shaft sleeves 6, the blades 3 on the adjacent shaft sleeves 6 are mutually abutted and seal the valve cavity, in order to improve the sealing performance, fireproof cushion materials can be arranged on the adjacent surfaces of the blades 3, the valve rod 2 is rotatably arranged in the shaft sleeve 6, one end of the connecting rod 4 extends out of the shaft sleeve 6 to be meshed with a temperature control electromagnetic actuator 5 arranged on the outer side wall of the valve body 1, one side of the connecting rod 4 is rotatably connected with one end of a plurality of hinged sheets 9, the other ends of the hinged sheets 9 are rotatably connected with one end of the shaft sleeve 6 one by one and are positioned in a side wall cavity of the valve body 1, wherein, the blade 3 on the shaft sleeve 6 is provided with a locking mechanism 7, and a driving mechanism 8 for the rotation of the shaft sleeve 6 and the locking of the locking mechanism 7 is arranged between the shaft sleeve 6 and the valve rod 2.

The working process of the utility model is as follows: when ambient temperature triggered or manually started temperature control electromagnetic actuator 5, temperature control electromagnetic actuator 5's output rotated drive valve rod 2 at 6 rotations of axle sleeve, and the fire prevention valve of discharging fume of normally open state at this moment begins to get into the state of tightly closing: the tight closed state of this valve has two continuous processes, at first, wherein with the valve rod 2 of 5 meshing of control by temperature change electromagnetic actuator as main valve pole, all the other valve rods 2 are vice valve rods, main valve pole drives all the other vice valve rods through connecting rod 4 and rotates together syntropy, all valve rods 2 drive axle sleeve 6 through actuating mechanism 8 earlier this moment and rotate, all blades 3 become the closed state that the tip overlaps and hug closely each other from the open mode, at this moment only simple tightly close, can strike blade 3 in the face of huge difference in temperature and form the gap, so this valve can also continue to rotate main valve pole, actuating mechanism 8 continues to rotate, drive locking mechanism 7 and lock each blade 3 each other, prevent the impact of difference in temperature production pressure, guarantee the tight of valve, improve the security and the reliability of fire prevention valve of discharging fume, it is worth noting: although the valve and the locking blade 3 are closed by the driving mechanism 8, the two are sequentially performed in the order of the former before the latter and the latter after the latter, and they are continuous but do not interfere with each other.

Example two:

the locking mechanism 7 shown in fig. 3 of this embodiment includes a sliding rod 71, a plurality of sliding sleeves 72 and a locking sleeve 73, the plurality of sliding sleeves 72 are arranged along a linear direction and are uniformly disposed on one side surface of the blade 3, the sliding rod 71 is slidably mounted in the sliding sleeve 72, and the locking sleeve 73 is mounted on one side surface of the blade 3 and is disposed opposite to one end of the sliding rod 71.

Through the drive of actuating mechanism 7, slide bar 71 can stretch out and draw back in sliding sleeve 72, and the one end of slide bar 71 can get into in the lock sleeve 73 on the blade 3 on the adjacent axle sleeve 2, prevents that blade 3 from receiving the impact, and it is inseparable to close, improves the sealing performance of smoke damper.

Example three:

the present embodiment shows a driving mechanism 8 as shown in fig. 4 and 5, which includes a first gear block 81, a second gear block 82, a third gear block 83 and a rack 84, wherein the first gear block 81 is horizontally disposed on the outer side wall of the valve rod 2, the second gear block 82 is horizontally disposed and symmetrically mounted on the outer side wall of the valve rod 2, the two second gear blocks 82 are respectively located above and below the first gear block 81, the third gear block 83 is horizontally disposed and symmetrically mounted on the inner side wall of the shaft sleeve 6 and meshed with the second gear block 82, and the rack 84 is horizontally disposed on the inner side surface of the sliding rod 81 and meshed with the first gear block 81.

The first gear block 81 and the second gear block 82 on the outer side wall of the valve rod 2 are engaged with the third gear block 83 on the inner side wall of the shaft sleeve 6 and the rack 84 on the sliding rod 71 along with rotation, and drive the shaft sleeve 6 to rotate, and the locking mechanism 7 locks the vane 3.

Preferably, the first gear block 81, the second gear block 82 and the third gear block 83 are all arc gears, the outer convex sides of the first gear block 81 and the second gear block 82 are provided with teeth, and the inner concave surface of the third gear block 83 is provided with teeth.

Preferably, the arc degrees of the arc gears are both 90 °, and the first gear block 81 and the second gear block 82 are connected at one end and do not overlap in the axial projection of the valve rod 2.

Preferably, the side wall of the sleeve 6 is provided with an arc-shaped hole 61 with a circumference of at least 3/4, and the first gear block 81 rotates in the arc-shaped hole 61.

According to the arc length of the first gear block 81, the second gear block 82 and the third gear block 83 being 90 °, that is, 1/4 circumference, when the driving mechanism 8 drives the shaft sleeve 6 to rotate to close the valve (the valve is opened and closed, the rotation angle of the blade 3 is 90 °), the shaft sleeve 6 and the blade 3 are to rotate 1/4 circumference (radian is 90 °), the locking mechanism 7 is also to rotate 90 °, the initial position and the final position of the first gear block 81 both require 1/4 circumference (radian is 90 °), regardless of the length of the sliding rod 71 in the driving locking mechanism 7, the arc length of the arc hole 61 in the shaft sleeve 6 allowing the first gear block 81 to rotate is required to be added up to at least 3/4 circumference, and the remaining 1/4 circumference is added into 3/4 circumference of the arc hole 61 according to the advancing length of the sliding rod 71 and the tooth taking circumference.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a fire control is with high reliability normally opening fire prevention valve of discharging fume which characterized in that: comprises a valve body (1), a plurality of valve rods (2), blades (3), a connecting rod (4) and a temperature control electromagnetic actuator (5), wherein a plurality of shaft sleeves (6) are vertically arranged and uniformly rotatably arranged in a valve cavity of the valve body (1), the valve rods (2) are rotatably arranged in the shaft sleeves (6), one end of each valve rod extends out of the shaft sleeves (6) to be meshed with the temperature control electromagnetic actuator (5) arranged on the outer side wall of the valve body (1), the blades (3) are symmetrically arranged on the shaft sleeves (6), the blades (3) on the adjacent shaft sleeves (6) are mutually abutted tightly and seal the valve cavity, the connecting rod (4) is rotatably connected with one end of each valve rod (2) through a hinge piece (9), the connecting rod (4) and the hinge pieces (9) are positioned in the side wall of the valve body (1), wherein a locking mechanism (7) is arranged on each blade (3) on each shaft sleeve (6), and a driving mechanism (8) used for rotating the shaft sleeve (6) and locking the locking mechanism (7) is arranged between the shaft sleeve (6) and the valve rod (2).

2. The high-reliability normally-open smoke-discharging fire-resisting valve for fire fighting according to claim 1, characterized in that: locking mechanism (7) include slide bar (71), a plurality of sliding sleeve (72) and lock sleeve (73), a plurality of sliding sleeve (72) are arranged along the line and are evenly set up on a side of blade (3), slide bar (71) slidable mounting be in sliding sleeve (72), lock sleeve (73) installation on a side of blade (3) and with the one end of slide bar (71) sets up relatively.

3. The high-reliability normally-open smoke-discharging fire-resisting valve for fire fighting according to claim 2, characterized in that: actuating mechanism (8) include first gear block (81), second gear block (82), third gear block (83) and rack (84), first gear block (81) level sets up on the lateral wall of valve rod (2), second gear block (82) level sets up and the symmetry is installed on the lateral wall of valve rod (2), two second gear block (82) are located respectively the top and the below of first gear block (81), third gear block (83) level sets up and the symmetry is installed on the inside wall of axle sleeve (6), and with second gear block (82) meshing, rack (84) level sets up the medial surface of slide bar (71), and with first gear block (81) meshing.

4. The high-reliability normally-open smoke-discharging fire-resisting valve for fire fighting according to claim 3, characterized in that: the gear rack is characterized in that the first gear block (81), the second gear block (82) and the third gear block (83) are arc gears, teeth are arranged on the outer convex side of the first gear block (81) and the outer convex side of the second gear block (82), and teeth are arranged on the inner concave surface of the third gear block (83).

5. The high-reliability normally-open smoke-discharging fire-resisting valve for fire fighting according to claim 4, characterized in that: the radian of the arc-shaped gear is 90 degrees, and one end of the first gear block (81) and one end of the second gear block (82) are connected and do not overlap on the axial projection of the valve rod (2).

6. The high-reliability normally-open smoke-discharging fire-resisting valve for fire fighting according to claim 5, characterized in that: an arc-shaped hole (61) with the circumference of at least 3/4 is formed in the side wall of the shaft sleeve (6), and the first gear block (81) rotates in the arc-shaped hole (61).