CN212745080U - Sealed enhancement mode fire prevention valve - Google Patents
Sealed enhancement mode fire prevention valve Download PDFInfo
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- CN212745080U CN212745080U CN202021407734.9U CN202021407734U CN212745080U CN 212745080 U CN212745080 U CN 212745080U CN 202021407734 U CN202021407734 U CN 202021407734U CN 212745080 U CN212745080 U CN 212745080U
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Abstract
The utility model relates to a fire prevention valve technical field discloses a sealed enhancement mode fire prevention valve, which comprises a valve body, be equipped with the blade of the linear equipartition of a plurality of upper and lower directions in the valve body, the blade includes the blade base plate, and the upper end fixedly connected with of blade base plate is towards the first closing plate on right side, the lower extreme of blade base plate is fixed with the second closing plate, is fixed with on the left side wall of second closing plate and strengthens sealed filler strip, and the first closing plate of the blade of downside presses on the sealed filler strip of enhancement rather than the blade of adjacent upside. It is through strengthening the leakproofness between two adjacent blades of sealing gasket strip multiplicable, and set up the blade components of a whole that can function independently, changes two closing plates of detachable into the blade tip of yielding, can effectively avoid because the problem that blade tip warp the leakproofness and reduce through changing the closing plate.
Description
The technical field is as follows:
the utility model relates to a fire prevention valve technical field, concretely relates to sealed enhancement mode fire prevention valve.
Background art:
the fire-proof valve is installed on the pipelines of the ventilation and air-conditioning system and the wind and fire mechanical smoke exhaust system, is normally opened, is closed when the temperature of gas in the pipeline reaches 70 degrees or 280 degrees in case of fire, can meet the requirements of smoke leakage amount and fire resistance integrity within a certain time, and plays a role in isolating smoke and fire resistance. When the plurality of blades are closed, two adjacent blades are mutually overlapped, so that the sealing effect is realized; however, if one blade is not smooth enough due to the process, a large gap is formed at the overlapping position of the two blades, the sealing performance is reduced, and the flame and high temperature cannot be effectively prevented from spreading; meanwhile, after the blades are opened and closed for many times, the overlapped parts of the blades are easy to deform, and the sealing property is also reduced.
The utility model has the following contents:
the utility model aims at overcoming prior art's not enough, provide a sealed enhancement mode fire prevention valve, it is through the leakproofness between two multiplicable adjacent blades of enhancement sealing gasket strip, and sets up the blade components of a whole that can function independently, changes two closing plates of detachable into the blade tip of yielding, can effectively avoid because the blade tip warp the problem that the leakproofness reduces through changing the closing plate.
The utility model provides a technical problem's scheme is:
a sealing enhanced fire damper comprises a valve body, wherein a plurality of blades which are linearly and uniformly distributed in the vertical direction are arranged in the valve body, each blade is fixed in the middle of a corresponding blade shaft, two ends of each blade shaft are hinged to the side wall of the valve body, and the blade shafts are provided with actuating mechanisms for driving the blade shafts to synchronously rotate; the lower end of the blade on the upper side is pressed against the upper end of the blade on the lower side adjacent to the lower end of the blade;
the blade includes the blade base plate, and the upper end fixedly connected with of blade base plate is towards the first closing plate on right side, the lower extreme of blade base plate is fixed with the second closing plate, is fixed with on the left side wall of second closing plate and strengthens the gasket strip, and the first closing plate of the blade of downside presses on the enhancement gasket strip of the blade of the upside rather than adjacent.
And a left bending bulge is formed at the lower end of the reinforcing sealing gasket strip.
The material of the reinforcing sealing gasket strip is memory alloy.
Be equipped with buffer structure on the first closing plate, buffer structure is including the flexure strip that is "bow" type form, and the first closing plate is higher than on the arc top of flexure strip under natural state, and the flexure strip plug bush is on first closing plate, and the arc arch of flexure strip is pressed on the enhancement sealing gasket strip that corresponds.
The right side wall of the first sealing plate is formed with a rectangular step hole with a large left side and a small right side, the elastic sheet is inserted in the rectangular step hole in a sleeved mode, arc bending portions are formed at two ends of the elastic sheet respectively, and the arc bending portions are inserted into the large end hole of the rectangular step hole.
The first sealing plate and the second sealing plate are fixedly connected with the blade base plate through screws or rivets.
The utility model discloses an outstanding effect is:
compared with the prior art, it is through strengthening the leakproofness between two adjacent blades of sealing gasket strip multiplicable, and sets up the blade components of a whole that can function independently, changes two closing plates of detachable into with yielding blade tip, can effectively avoid because the problem that blade tip warp the leakproofness and reduce through changing the closing plate.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a right side view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 with respect to B;
fig. 5 is a schematic structural view of the blade of the present invention.
The specific implementation mode is as follows:
in an embodiment, as shown in fig. 1 to 5, a seal-enhanced fire damper includes a valve body 1, a plurality of blades 2 linearly and uniformly distributed in an up-down direction are disposed in the valve body 1, each blade 2 is fixed in the middle of a corresponding blade shaft 3, two ends of each blade shaft 3 are hinged to the side wall of the valve body 1, and the blade shafts 3 are provided with an actuating mechanism for driving the blade shafts to synchronously rotate; the lower end of the blade 2 at the upper side is pressed against the upper end of the blade 2 at the lower side adjacent to the lower end;
the blade 2 includes a blade base plate 21, the upper end fixedly connected with of blade base plate 21 faces the first sealing plate 22 on the right side, the lower extreme of blade base plate 21 is fixed with the second sealing plate 23, is fixed with on the left side wall of second sealing plate 23 and strengthens sealing gasket strip 24, and the first sealing plate 22 of the blade 2 of downside presses on the enhancement sealing gasket strip 24 of the blade 2 of upside rather than adjacent.
Further, the lower end of the reinforcing gasket strip 24 is formed with a left-bent protrusion 241.
More specifically, the material of the reinforcing gasket strip 24 is a memory alloy.
Furthermore, the first sealing plate 22 is provided with a buffer structure 4, the buffer structure 4 includes an elastic sheet 41 in a "bow" shape, an arc top end of the elastic sheet 41 is higher than the first sealing plate 22 in a natural state, the elastic sheet 41 is inserted and sleeved on the first sealing plate 22, and an arc protrusion of the elastic sheet 41 presses against the corresponding reinforcing sealing gasket strip 24.
Furthermore, a rectangular stepped hole 221 with a large left side and a small right side is formed in the right side wall of the first sealing plate 22, the elastic sheet 41 is inserted into the rectangular stepped hole 221, arc-shaped bending portions 42 are respectively formed at two ends of the elastic sheet 41, and the arc-shaped bending portions 42 are inserted into the large end hole of the rectangular stepped hole 221.
Further, the first sealing plate 22 and the second sealing plate 23 are both fixedly connected to the blade base plate 21 by screws or rivets.
The working principle is as follows: the actuating mechanism drives the blade shaft 3 to rotate, the blade shaft 3 drives the corresponding blade 2 to overturn, the first sealing plate 22 of the lower blade 2 is close to the second sealing plate 23 of the upper blade 2 adjacent to the first sealing plate 22, the first sealing plate 22 is pressed on the reinforcing sealing gasket strip 24, so that the joint of the two blades is sealed, the lower end of the reinforcing sealing strip 24 is formed with a bent bulge, the joint area between the reinforcing sealing strip 24 and the first sealing plate 22 can be increased, and the sealing performance of the joint of the two blades is further improved; after the blade is opened and closed for multiple times, the first sealing plate and the second sealing plate are deformed due to multiple collisions, and the first sealing plate and the second sealing plate are convenient to replace due to the split design of the first sealing plate and the second sealing plate and the blade base plate; if the blades are integrally formed, the end parts of the blades deform, and the whole blades are troublesome to replace;
when the first sealing plate 22 approaches the reinforcing gasket strip, the elastic piece 41 contacts the reinforcing gasket strip before the first sealing plate 22, the elastic piece 41 can be deformed to retract into the rectangular stepped hole 221, and the elastic piece 41 can play a role of buffering.
Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (6)
1. A sealing enhancement type fire damper comprises a valve body (1), wherein a plurality of blades (2) which are linearly and uniformly distributed in the vertical direction are arranged in the valve body (1), each blade (2) is fixed in the middle of a corresponding blade shaft (3), two ends of each blade shaft (3) are hinged to the side wall of the valve body (1), and the blade shafts (3) are provided with actuating mechanisms for driving the blade shafts to synchronously rotate; the method is characterized in that: the lower end of the blade (2) at the upper side is pressed against the upper end of the blade (2) at the lower side adjacent to the lower end;
blade (2) are including blade base plate (21), and the upper end fixedly connected with of blade base plate (21) is towards first closing plate of detachable (22) on right side, the lower extreme of blade base plate (21) is fixed with detachable second closing plate (23), is fixed with on the left side wall of second closing plate (23) and strengthens sealing gasket strip (24), and first closing plate (22) of blade (2) of downside press on the enhancement sealing gasket strip (24) of blade (2) of the upside rather than adjacent.
2. The seal-enhanced fire damper of claim 1, wherein: the lower end of the reinforcing sealing gasket strip (24) is formed with a leftward bent bulge (241).
3. A seal-enhanced fire damper as claimed in claim 2, wherein: the material of the reinforcing sealing gasket strip (24) is memory alloy.
4. The seal-enhanced fire damper of claim 1, wherein: be equipped with buffer structure (4) on first closing plate (22), buffer structure (4) are including elastic sheet (41) that are "bow" type form, and the arc top of elastic sheet (41) is higher than first closing plate (22) under natural state, and elastic sheet (41) plug bush is on first closing plate (22), and the arc arch of elastic sheet (41) is pressed on corresponding enhancement sealing gasket strip (24).
5. The seal-enhanced fire damper of claim 4, wherein: the right side wall of the first sealing plate (22) is formed with a rectangular stepped hole (221) which is large in left and small in right, the elastic piece (41) is inserted in the rectangular stepped hole (221), arc bending portions (42) are formed at two ends of the elastic piece (41) respectively, and the arc bending portions (42) are inserted into the large end hole of the rectangular stepped hole (221).
6. The seal-enhanced fire damper of claim 1, wherein: the first sealing plate (22) and the second sealing plate (23) are fixedly connected with the blade base plate (21) through screws or rivets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021407734.9U CN212745080U (en) | 2020-07-17 | 2020-07-17 | Sealed enhancement mode fire prevention valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021407734.9U CN212745080U (en) | 2020-07-17 | 2020-07-17 | Sealed enhancement mode fire prevention valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212745080U true CN212745080U (en) | 2021-03-19 |
Family
ID=75037898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021407734.9U Active CN212745080U (en) | 2020-07-17 | 2020-07-17 | Sealed enhancement mode fire prevention valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212745080U (en) |
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2020
- 2020-07-17 CN CN202021407734.9U patent/CN212745080U/en active Active
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