CN222702719U - Slow closing mechanism for flap type fire damper - Google Patents
Slow closing mechanism for flap type fire damper Download PDFInfo
- Publication number
- CN222702719U CN222702719U CN202420866489.XU CN202420866489U CN222702719U CN 222702719 U CN222702719 U CN 222702719U CN 202420866489 U CN202420866489 U CN 202420866489U CN 222702719 U CN222702719 U CN 222702719U
- Authority
- CN
- China
- Prior art keywords
- damper
- connecting part
- flap type
- closing mechanism
- slow closing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000013016 damping Methods 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a slow closing mechanism for a flap type fireproof valve, which comprises a first damper, a second damper and an adjusting rope, wherein a first connecting part and a second connecting part are respectively arranged at two ends of the first damper in the length direction, a third connecting part and a fourth connecting part are respectively arranged at two ends of the second damper in the length direction, the adjusting rope is connected with the first connecting part and is used for being hung with a handle of the flap type fireproof valve, the second connecting part is rotationally connected with the third connecting part, and the fourth connecting part is rotationally connected with the wall surface of a mounting frame. The slow closing mechanism for the flap type fireproof valve can realize the circular motion damping limiting function of the actuating mechanism of the flap type fireproof valve, and can slow down the influence of air flow disturbance caused by too fast valve opening and closing of a valve when a person opens and closes the valve.
Description
Technical Field
The utility model relates to the technical field of nuclear power, in particular to a slow closing mechanism for a flap type fireproof valve.
Background
The original flap valve design can be manually opened and closed, the fuse link melts the valve handle pin shaft and is disconnected when the valve design is in a fire disaster, the valve is closed instantly under the action of torque spring force, and because the valve is a flap type large-caliber butterfly valve, the instant closing force is large, so that the blades can flash the airflow, the airflow can cause the opening limit flash of the downstream auxiliary opening type check valve, and further, the system equipment is jumped and stopped due to the logic relation.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a slow closing mechanism for a flap type fireproof valve.
The utility model solves the technical problems by adopting the technical scheme that the slow closing mechanism for the flap type fireproof valve comprises a first damper, a second damper and an adjusting rope, wherein the two ends of the first damper in the length direction are respectively provided with a first connecting part and a second connecting part, and the two ends of the second damper in the length direction are respectively provided with a third connecting part and a fourth connecting part;
The adjusting rope is connected with the first connecting part and is used for being hung with a handle of the flap type fireproof valve, the second connecting part is rotationally connected with the third connecting part, and the fourth connecting part is rotationally connected with the wall surface of the mounting frame.
In some embodiments, the adjustment cord is a steel cord.
In some embodiments, the second connection portion is rotatably connected to the third connection portion by a pin.
In some embodiments, a second pin hole is formed in the second connection portion, a third pin hole is formed in the third connection portion, and the second pin hole and the third pin hole are rotatably connected through the pin shaft.
In some embodiments, the slow closing mechanism for a flap fire damper further comprises a bracket connected to a wall of the mounting bracket;
The fourth connecting part is rotationally connected with the bracket.
In some embodiments, the bracket is L-shaped, and the bracket comprises a fixing plate and a connecting plate vertically connected with the fixing plate;
The fourth connecting part is rotationally connected with the connecting plate.
In some embodiments, the fourth connection is rotatably connected to the connection plate by a pin.
In some embodiments, the stent is a metal stent.
In some embodiments, the first damper is a liquid damper.
In some embodiments, the second damper is a liquid damper.
The slow closing mechanism for the flap type fireproof valve has the advantages that the slow closing mechanism for the flap type fireproof valve comprises a first damper, a second damper and an adjusting rope, wherein the first connecting part and the second connecting part are respectively arranged at two ends of the first damper in the length direction, the third connecting part and the fourth connecting part are respectively arranged at two ends of the second damper in the length direction, the adjusting rope is connected with the first connecting part and is used for being connected with a handle of the flap type fireproof valve in a hanging mode, the second connecting part is connected with the third connecting part in a rotating mode, and the fourth connecting part is connected with the wall surface of the mounting frame in a rotating mode. The device can realize the circular motion damping limiting function of the actuating mechanism of the flap type fireproof valve, and can slow down the influence of air flow disturbance generated by too fast valve opening and closing when a person opens and closes the valve.
Drawings
In order to more clearly illustrate the technical solution of the present utility model, the following description will be given with reference to the accompanying drawings and examples, it being understood that the following drawings only illustrate some examples of the present utility model and should not be construed as limiting the scope, and that other related drawings can be obtained from these drawings by those skilled in the art without the inventive effort. In the accompanying drawings:
fig. 1 is a schematic illustration of the application of a slow closing mechanism for a flap fire damper in some embodiments of the present utility model.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.
It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements or in an interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.
Referring to fig. 1, the present utility model shows a slow closing mechanism for a flap type fire damper, which can solve the air flow disturbance caused by fast closing of the flap type fire damper 100 during closing, reduce the natural closing speed of the flap type fire damper 100, and make the flap type fire damper reach a uniform speed state as much as possible, thus reducing the air flow disturbance generated to the system, avoiding the opening limit flash of the auxiliary opening check valve at the downstream of the flap type fire damper 100, and further preventing the system equipment from jumping and stopping.
The damper comprises a first damper 10, a second damper 20 and an adjusting rope 30, wherein a first connecting part 11 and a second connecting part 12 are respectively arranged at two ends of the first damper 10 in the length direction, and a third connecting part 21 and a fourth connecting part 22 are respectively arranged at two ends of the second damper 20 in the length direction.
The adjusting rope 30 is connected with the first connecting part 11, the adjusting rope 30 is used for being hung with the handle 101 of the flap type fire damper 100, the second connecting part 12 is rotatably connected with the third connecting part 21, and the fourth connecting part 22 is rotatably connected with the wall surface of the mounting frame 200.
In some embodiments, the adjusting rope 30 is a steel wire rope, and the length of the adjusting rope 30 can be adjusted by an adjusting buckle, so that the handle 101 with different size structures can be used. Understandably, by providing a flexible and adjustable wire rope at one end of the first connection portion 11 of the first damper 10, the handle 101 is hung together with the handle 101 through the flexible and adjustable wire rope, so that the handle 101 can be smoothly operated without being influenced by the locking of the adjusting rope 30 during the circumferential movement of opening and closing the rudder, and the instant disassembling function is satisfied when the intervention of the first damper 10 is not needed. Further, the first connection portion 11 may be provided with a first pin hole, and the adjusting rope 30 may be connected to the first pin hole, for example, the adjusting rope 30 may be directly connected to the first pin hole, or the first pin hole may be provided with a fastener, and the adjusting rope 30 may be connected to the fastener, and the fastener may be a bolt, a screw, or a bolt.
In some embodiments, the second connecting portion 12 is rotatably connected to the third connecting portion 21 by a pin 40. Preferably, the second connecting portion 12 is provided with a second pin hole, and the third connecting portion 21 is provided with a third pin hole, and the second pin hole and the third pin hole are rotatably connected through the pin shaft 40.
Understandably, at the connection of the first damper 10 and the second damper 20, the hinge pin 40 is used for connection, so as to simulate the knee joint structure, and when the flap type fireproof valve is opened and closed, the first damper 10 and the second damper 20 can freely rotate at the connection of the two to cooperate with the flap type fireproof valve.
In some embodiments, the slow closing mechanism for the flap type fire damper further includes a bracket 50 coupled to the wall surface of the mounting frame 200, and the fourth coupling portion 22 is rotatably coupled to the bracket 50. The mounting frame 200 is disposed beside the flap fire damper 100, and the mounting frame 200 may be defined as a rooting frame in some embodiments. The mounting bracket 200 may be a metal bracket. The mounting point of the fourth connecting portion 22 is approximately at the side wall of the mounting frame 200 above the flap type fire damper 100 on the same side as the handle 101.
In some embodiments, the stand 50 has an L-shape, and the stand 50 includes a fixing plate 51 and a connection plate 52 vertically connected to the fixing plate 51, and the connection plate 52 is disposed on the same side as the handle 101. The fixing plate 51 may be detachably coupled to the mounting bracket 200 by bolts or screws, etc. The bracket 50 is a metal bracket, and may be, for example, a stainless steel bracket, an aluminum bracket, or an aluminum alloy bracket.
The fourth connecting portion 22 is rotatably connected to the connecting plate 52.
In some embodiments, the fourth connecting portion 22 is rotatably connected to the connecting plate 52 by a pin 60, for example, a fourth pin hole may be provided on the fourth connecting portion 22, and the pin 60 is inserted through the fourth pin hole and connected to the connecting plate 52. On the basis of stable installation, the fourth connecting part 22 can freely rotate along with the free angle of the turning plate type fireproof valve 100.
In some embodiments, the first damper 10 is a liquid damper.
In some embodiments, the second damper 20 is a liquid damper.
The damper can generally relieve the load caused by the violent displacement of the instant pipe system generated by special working conditions such as earthquake or other vibration, and the main principle is to use the basic damping orifice plate type oil valve of the damper. The damper is a vibration control device that is sensitive to velocity response. The application mainly utilizes the sensitivity reaction of the damper to the speed.
In a nuclear power plant, the whole on-off of an actuating mechanism of a field flap type fire damper 100 is designed to be in 90-degree circular operation, and the transverse shearing is easy to cause the damage of the shearing force of the damper unlike the linear operation of a normally contacted damper, so that the application is provided with a first damper 10 and a second damper 20, and the problem that the damper is damaged by the shearing force during the nonlinear operation is solved.
When a fire disaster occurs or when the fire disaster is manually closed, the on-site flap type fire damper 100 is instantaneously closed under the action of the torque force of the spring force, and the design purpose is to realize the passive closing function, but the torque force is instantaneously closed, so that the fire damper is caused by the structural reason (the design of a butterfly plate), and larger flaring airflow is instantaneously generated, so that the light auxiliary opening type check valve is closed due to the disturbance of the airflow. Through the slow closing mechanism for the flap type fireproof valve 100, the circular motion damping limiting function of the actuating mechanism of the flap type fireproof valve 100 is smoothly realized on the basis of meeting the design principle that the basic switching function of the flap type fireproof valve 100 is not influenced, and the phenomenon that the system operation is influenced by too fast airflow disturbance generated by valve switching when a valve is opened or closed by personnel is slowed down.
It is to be understood that the foregoing examples merely illustrate preferred embodiments of the present utility model, and are not to be construed as limiting the scope of the utility model, but that it is to be understood that modifications and improvements to the above-described embodiments may be made by those skilled in the art without departing from the spirit of the utility model, and that it is intended to cover all modifications and improvements as fall within the scope of the utility model.
Claims (10)
1. The slow closing mechanism for the flap type fireproof valve is characterized by comprising a first damper (10), a second damper (20) and an adjusting rope (30), wherein a first connecting part (11) and a second connecting part (12) are respectively arranged at two ends of the first damper (10) in the length direction, and a third connecting part (21) and a fourth connecting part (22) are respectively arranged at two ends of the second damper (20) in the length direction;
The adjusting rope (30) is connected with the first connecting portion (11), the adjusting rope (30) is used for being hung with a handle (101) of the flap type fireproof valve (100), the second connecting portion (12) is rotatably connected with the third connecting portion (21), and the fourth connecting portion (22) is rotatably connected with the wall surface of the mounting frame (200).
2. The slow closing mechanism for flap type fire damper according to claim 1, wherein the adjusting rope (30) is a wire rope.
3. The slow closing mechanism for flap type fire damper according to claim 1, wherein the second connecting portion (12) is rotatably connected to the third connecting portion (21) through a pin (40).
4. A slow closing mechanism for a flap type fire damper according to claim 3, wherein a second pin hole is provided in the second connecting portion (12), a third pin hole is provided in the third connecting portion (21), and the second pin hole and the third pin hole are rotatably connected through the pin shaft (40).
5. The slow closing mechanism for a flap type fire damper according to claim 1, further comprising a bracket (50) coupled to a wall surface of the mounting bracket (200);
The fourth connecting part (22) is rotatably connected with the bracket (50).
6. The slow closing mechanism for a flap type fire damper according to claim 5, wherein the bracket (50) is L-shaped, and the bracket (50) includes a fixing plate (51) and a connection plate (52) vertically connected to the fixing plate (51);
the fourth connecting part (22) is rotatably connected with the connecting plate (52).
7. The slow closing mechanism for flap type fire damper according to claim 6, wherein the fourth connection portion (22) is rotatably connected to the connection plate (52) by a pin (60).
8. The slow closing mechanism for flap type fire damper as claimed in claim 6, wherein the bracket (50) is a metal bracket.
9. Slow closing mechanism for flap type fire damper according to any one of claims 1 to 8, wherein the first damper (10) is a liquid damper.
10. Slow closing mechanism for flap type fire damper according to any one of claims 1 to 8, wherein the second damper (20) is a liquid damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420866489.XU CN222702719U (en) | 2024-04-24 | 2024-04-24 | Slow closing mechanism for flap type fire damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420866489.XU CN222702719U (en) | 2024-04-24 | 2024-04-24 | Slow closing mechanism for flap type fire damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222702719U true CN222702719U (en) | 2025-04-01 |
Family
ID=95143444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420866489.XU Active CN222702719U (en) | 2024-04-24 | 2024-04-24 | Slow closing mechanism for flap type fire damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222702719U (en) |
-
2024
- 2024-04-24 CN CN202420866489.XU patent/CN222702719U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN222702719U (en) | Slow closing mechanism for flap type fire damper | |
| CN105508717B (en) | A kind of booster quick action emergency valve | |
| US20010007814A1 (en) | Balanced ventilation doors | |
| CN213017982U (en) | Safety valve with mechanical energy storage structure | |
| CN111244858B (en) | Cable antidetonation support | |
| CN209857970U (en) | Liquid flow indicating device and cooling water system | |
| CN111720608B (en) | A mechanical energy storage control system and valve | |
| CA2348348C (en) | Balanced ventilation doors | |
| CN217267320U (en) | Screw rod gate anti-sticking floodgate protector | |
| US5437574A (en) | Top sealing chimney cap | |
| US7273989B2 (en) | Actuator safety attachment device | |
| GB2098475A (en) | Damper blade actuating mechanism | |
| CN105508632B (en) | A kind of flow rate detection mechanism and its booster quick action emergency valve | |
| CN220396737U (en) | Fire control installing support convenient to angle regulation | |
| CN220337543U (en) | Check valve convenient to maintain | |
| CN209960649U (en) | Air conditioner | |
| CN212716719U (en) | Reverse partition device for adjusting air window | |
| CN215291017U (en) | Fire control skylight, closed cold passageway and cloud computing center computer lab | |
| KR20170039023A (en) | Fire damper device | |
| CN216813003U (en) | Novel fire prevention valve with high strength is fire-resistant | |
| CN205331447U (en) | Velocity of flow detection mechanism and booster quick action emergency valve thereof | |
| JP3251399U (en) | Device to prevent excessive flap opening with a backflow prevention damper structure with a balance weight | |
| CN217108932U (en) | Network equipment bears device | |
| CN115450504A (en) | Wind-proof rod structure for substation equipment room | |
| CN215891283U (en) | Fusing device of high-temperature fusing safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |